drm: atmel-hlcdc: Atomic mode-setting conversion
authorBoris Brezillon <boris.brezillon@free-electrons.com>
Thu, 5 Feb 2015 15:32:33 +0000 (16:32 +0100)
committerBoris Brezillon <boris.brezillon@free-electrons.com>
Sun, 22 Feb 2015 20:00:06 +0000 (21:00 +0100)
Convert the HLCDC driver to atomic mode-setting.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Tested-by: Sylvain Rochet <sylvain.rochet@finsecur.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_crtc.c
drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c
drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.h
drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_layer.c
drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_layer.h
drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_output.c
drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_plane.c

index 0409b907de5d5cc771543d17cc50ed20bad3e3ba..b0c06272a1cbcbaf1bcac6ecb03c8a437a9c22cc 100644 (file)
  * @hlcdc: pointer to the atmel_hlcdc structure provided by the MFD device
  * @event: pointer to the current page flip event
  * @id: CRTC id (returned by drm_crtc_index)
- * @dpms: DPMS mode
+ * @enabled: CRTC state
  */
 struct atmel_hlcdc_crtc {
        struct drm_crtc base;
        struct atmel_hlcdc_dc *dc;
        struct drm_pending_vblank_event *event;
        int id;
-       int dpms;
+       bool enabled;
 };
 
 static inline struct atmel_hlcdc_crtc *
@@ -53,86 +53,17 @@ drm_crtc_to_atmel_hlcdc_crtc(struct drm_crtc *crtc)
        return container_of(crtc, struct atmel_hlcdc_crtc, base);
 }
 
-static void atmel_hlcdc_crtc_dpms(struct drm_crtc *c, int mode)
+static void atmel_hlcdc_crtc_mode_set_nofb(struct drm_crtc *c)
 {
-       struct drm_device *dev = c->dev;
        struct atmel_hlcdc_crtc *crtc = drm_crtc_to_atmel_hlcdc_crtc(c);
        struct regmap *regmap = crtc->dc->hlcdc->regmap;
-       unsigned int status;
-
-       if (mode != DRM_MODE_DPMS_ON)
-               mode = DRM_MODE_DPMS_OFF;
-
-       if (crtc->dpms == mode)
-               return;
-
-       pm_runtime_get_sync(dev->dev);
-
-       if (mode != DRM_MODE_DPMS_ON) {
-               regmap_write(regmap, ATMEL_HLCDC_DIS, ATMEL_HLCDC_DISP);
-               while (!regmap_read(regmap, ATMEL_HLCDC_SR, &status) &&
-                      (status & ATMEL_HLCDC_DISP))
-                       cpu_relax();
-
-               regmap_write(regmap, ATMEL_HLCDC_DIS, ATMEL_HLCDC_SYNC);
-               while (!regmap_read(regmap, ATMEL_HLCDC_SR, &status) &&
-                      (status & ATMEL_HLCDC_SYNC))
-                       cpu_relax();
-
-               regmap_write(regmap, ATMEL_HLCDC_DIS, ATMEL_HLCDC_PIXEL_CLK);
-               while (!regmap_read(regmap, ATMEL_HLCDC_SR, &status) &&
-                      (status & ATMEL_HLCDC_PIXEL_CLK))
-                       cpu_relax();
-
-               clk_disable_unprepare(crtc->dc->hlcdc->sys_clk);
-
-               pm_runtime_allow(dev->dev);
-       } else {
-               pm_runtime_forbid(dev->dev);
-
-               clk_prepare_enable(crtc->dc->hlcdc->sys_clk);
-
-               regmap_write(regmap, ATMEL_HLCDC_EN, ATMEL_HLCDC_PIXEL_CLK);
-               while (!regmap_read(regmap, ATMEL_HLCDC_SR, &status) &&
-                      !(status & ATMEL_HLCDC_PIXEL_CLK))
-                       cpu_relax();
-
-
-               regmap_write(regmap, ATMEL_HLCDC_EN, ATMEL_HLCDC_SYNC);
-               while (!regmap_read(regmap, ATMEL_HLCDC_SR, &status) &&
-                      !(status & ATMEL_HLCDC_SYNC))
-                       cpu_relax();
-
-               regmap_write(regmap, ATMEL_HLCDC_EN, ATMEL_HLCDC_DISP);
-               while (!regmap_read(regmap, ATMEL_HLCDC_SR, &status) &&
-                      !(status & ATMEL_HLCDC_DISP))
-                       cpu_relax();
-       }
-
-       pm_runtime_put_sync(dev->dev);
-
-       crtc->dpms = mode;
-}
-
-static int atmel_hlcdc_crtc_mode_set(struct drm_crtc *c,
-                                    struct drm_display_mode *mode,
-                                    struct drm_display_mode *adj,
-                                    int x, int y,
-                                    struct drm_framebuffer *old_fb)
-{
-       struct atmel_hlcdc_crtc *crtc = drm_crtc_to_atmel_hlcdc_crtc(c);
-       struct regmap *regmap = crtc->dc->hlcdc->regmap;
-       struct drm_plane *plane = c->primary;
-       struct drm_framebuffer *fb;
+       struct drm_display_mode *adj = &c->state->adjusted_mode;
        unsigned long mode_rate;
        struct videomode vm;
        unsigned long prate;
        unsigned int cfg;
        int div;
 
-       if (atmel_hlcdc_dc_mode_valid(crtc->dc, adj) != MODE_OK)
-               return -EINVAL;
-
        vm.vfront_porch = adj->crtc_vsync_start - adj->crtc_vdisplay;
        vm.vback_porch = adj->crtc_vtotal - adj->crtc_vsync_end;
        vm.vsync_len = adj->crtc_vsync_end - adj->crtc_vsync_start;
@@ -156,7 +87,7 @@ static int atmel_hlcdc_crtc_mode_set(struct drm_crtc *c,
        cfg = ATMEL_HLCDC_CLKPOL;
 
        prate = clk_get_rate(crtc->dc->hlcdc->sys_clk);
-       mode_rate = mode->crtc_clock * 1000;
+       mode_rate = adj->crtc_clock * 1000;
        if ((prate / 2) < mode_rate) {
                prate *= 2;
                cfg |= ATMEL_HLCDC_CLKSEL;
@@ -174,10 +105,10 @@ static int atmel_hlcdc_crtc_mode_set(struct drm_crtc *c,
 
        cfg = 0;
 
-       if (mode->flags & DRM_MODE_FLAG_NVSYNC)
+       if (adj->flags & DRM_MODE_FLAG_NVSYNC)
                cfg |= ATMEL_HLCDC_VSPOL;
 
-       if (mode->flags & DRM_MODE_FLAG_NHSYNC)
+       if (adj->flags & DRM_MODE_FLAG_NHSYNC)
                cfg |= ATMEL_HLCDC_HSPOL;
 
        regmap_update_bits(regmap, ATMEL_HLCDC_CFG(5),
@@ -187,77 +118,132 @@ static int atmel_hlcdc_crtc_mode_set(struct drm_crtc *c,
                           ATMEL_HLCDC_VSPSU | ATMEL_HLCDC_VSPHO |
                           ATMEL_HLCDC_GUARDTIME_MASK,
                           cfg);
-
-       fb = plane->fb;
-       plane->fb = old_fb;
-
-       return atmel_hlcdc_plane_update_with_mode(plane, c, fb, 0, 0,
-                                                 adj->hdisplay, adj->vdisplay,
-                                                 x << 16, y << 16,
-                                                 adj->hdisplay << 16,
-                                                 adj->vdisplay << 16,
-                                                 adj);
 }
 
-int atmel_hlcdc_crtc_mode_set_base(struct drm_crtc *c, int x, int y,
-                                  struct drm_framebuffer *old_fb)
+static bool atmel_hlcdc_crtc_mode_fixup(struct drm_crtc *crtc,
+                                       const struct drm_display_mode *mode,
+                                       struct drm_display_mode *adjusted_mode)
 {
-       struct drm_plane *plane = c->primary;
-       struct drm_framebuffer *fb = plane->fb;
-       struct drm_display_mode *mode = &c->hwmode;
-
-       plane->fb = old_fb;
-
-       return plane->funcs->update_plane(plane, c, fb,
-                                         0, 0,
-                                         mode->hdisplay,
-                                         mode->vdisplay,
-                                         x << 16, y << 16,
-                                         mode->hdisplay << 16,
-                                         mode->vdisplay << 16);
+       return true;
 }
 
-static void atmel_hlcdc_crtc_prepare(struct drm_crtc *crtc)
+static void atmel_hlcdc_crtc_disable(struct drm_crtc *c)
 {
-       atmel_hlcdc_crtc_dpms(crtc, DRM_MODE_DPMS_OFF);
+       struct drm_device *dev = c->dev;
+       struct atmel_hlcdc_crtc *crtc = drm_crtc_to_atmel_hlcdc_crtc(c);
+       struct regmap *regmap = crtc->dc->hlcdc->regmap;
+       unsigned int status;
+
+       if (!crtc->enabled)
+               return;
+
+       drm_crtc_vblank_off(c);
+
+       pm_runtime_get_sync(dev->dev);
+
+       regmap_write(regmap, ATMEL_HLCDC_DIS, ATMEL_HLCDC_DISP);
+       while (!regmap_read(regmap, ATMEL_HLCDC_SR, &status) &&
+              (status & ATMEL_HLCDC_DISP))
+               cpu_relax();
+
+       regmap_write(regmap, ATMEL_HLCDC_DIS, ATMEL_HLCDC_SYNC);
+       while (!regmap_read(regmap, ATMEL_HLCDC_SR, &status) &&
+              (status & ATMEL_HLCDC_SYNC))
+               cpu_relax();
+
+       regmap_write(regmap, ATMEL_HLCDC_DIS, ATMEL_HLCDC_PIXEL_CLK);
+       while (!regmap_read(regmap, ATMEL_HLCDC_SR, &status) &&
+              (status & ATMEL_HLCDC_PIXEL_CLK))
+               cpu_relax();
+
+       clk_disable_unprepare(crtc->dc->hlcdc->sys_clk);
+
+       pm_runtime_allow(dev->dev);
+
+       pm_runtime_put_sync(dev->dev);
+
+       crtc->enabled = false;
 }
 
-static void atmel_hlcdc_crtc_commit(struct drm_crtc *crtc)
+static void atmel_hlcdc_crtc_enable(struct drm_crtc *c)
 {
-       atmel_hlcdc_crtc_dpms(crtc, DRM_MODE_DPMS_ON);
+       struct drm_device *dev = c->dev;
+       struct atmel_hlcdc_crtc *crtc = drm_crtc_to_atmel_hlcdc_crtc(c);
+       struct regmap *regmap = crtc->dc->hlcdc->regmap;
+       unsigned int status;
+
+       if (crtc->enabled)
+               return;
+
+       pm_runtime_get_sync(dev->dev);
+
+       pm_runtime_forbid(dev->dev);
+
+       clk_prepare_enable(crtc->dc->hlcdc->sys_clk);
+
+       regmap_write(regmap, ATMEL_HLCDC_EN, ATMEL_HLCDC_PIXEL_CLK);
+       while (!regmap_read(regmap, ATMEL_HLCDC_SR, &status) &&
+              !(status & ATMEL_HLCDC_PIXEL_CLK))
+               cpu_relax();
+
+
+       regmap_write(regmap, ATMEL_HLCDC_EN, ATMEL_HLCDC_SYNC);
+       while (!regmap_read(regmap, ATMEL_HLCDC_SR, &status) &&
+              !(status & ATMEL_HLCDC_SYNC))
+               cpu_relax();
+
+       regmap_write(regmap, ATMEL_HLCDC_EN, ATMEL_HLCDC_DISP);
+       while (!regmap_read(regmap, ATMEL_HLCDC_SR, &status) &&
+              !(status & ATMEL_HLCDC_DISP))
+               cpu_relax();
+
+       pm_runtime_put_sync(dev->dev);
+
+       drm_crtc_vblank_on(c);
+
+       crtc->enabled = true;
 }
 
-static bool atmel_hlcdc_crtc_mode_fixup(struct drm_crtc *crtc,
-                                       const struct drm_display_mode *mode,
-                                       struct drm_display_mode *adjusted_mode)
+static int atmel_hlcdc_crtc_atomic_check(struct drm_crtc *c,
+                                        struct drm_crtc_state *s)
 {
-       return true;
+       struct atmel_hlcdc_crtc *crtc = drm_crtc_to_atmel_hlcdc_crtc(c);
+
+       if (atmel_hlcdc_dc_mode_valid(crtc->dc, &s->adjusted_mode) != MODE_OK)
+               return -EINVAL;
+
+       return 0;
 }
 
-static void atmel_hlcdc_crtc_disable(struct drm_crtc *crtc)
+static void atmel_hlcdc_crtc_atomic_begin(struct drm_crtc *c)
 {
-       struct drm_plane *plane;
+       struct atmel_hlcdc_crtc *crtc = drm_crtc_to_atmel_hlcdc_crtc(c);
 
-       atmel_hlcdc_crtc_dpms(crtc, DRM_MODE_DPMS_OFF);
-       crtc->primary->funcs->disable_plane(crtc->primary);
+       if (c->state->event) {
+               c->state->event->pipe = drm_crtc_index(c);
 
-       drm_for_each_legacy_plane(plane, &crtc->dev->mode_config.plane_list) {
-               if (plane->crtc != crtc)
-                       continue;
+               WARN_ON(drm_crtc_vblank_get(c) != 0);
 
-               plane->funcs->disable_plane(crtc->primary);
-               plane->crtc = NULL;
+               crtc->event = c->state->event;
+               c->state->event = NULL;
        }
 }
 
+static void atmel_hlcdc_crtc_atomic_flush(struct drm_crtc *crtc)
+{
+       /* TODO: write common plane control register if available */
+}
+
 static const struct drm_crtc_helper_funcs lcdc_crtc_helper_funcs = {
        .mode_fixup = atmel_hlcdc_crtc_mode_fixup,
-       .dpms = atmel_hlcdc_crtc_dpms,
-       .mode_set = atmel_hlcdc_crtc_mode_set,
-       .mode_set_base = atmel_hlcdc_crtc_mode_set_base,
-       .prepare = atmel_hlcdc_crtc_prepare,
-       .commit = atmel_hlcdc_crtc_commit,
+       .mode_set = drm_helper_crtc_mode_set,
+       .mode_set_nofb = atmel_hlcdc_crtc_mode_set_nofb,
+       .mode_set_base = drm_helper_crtc_mode_set_base,
        .disable = atmel_hlcdc_crtc_disable,
+       .enable = atmel_hlcdc_crtc_enable,
+       .atomic_check = atmel_hlcdc_crtc_atomic_check,
+       .atomic_begin = atmel_hlcdc_crtc_atomic_begin,
+       .atomic_flush = atmel_hlcdc_crtc_atomic_flush,
 };
 
 static void atmel_hlcdc_crtc_destroy(struct drm_crtc *c)
@@ -306,61 +292,13 @@ void atmel_hlcdc_crtc_irq(struct drm_crtc *c)
        atmel_hlcdc_crtc_finish_page_flip(drm_crtc_to_atmel_hlcdc_crtc(c));
 }
 
-static int atmel_hlcdc_crtc_page_flip(struct drm_crtc *c,
-                                     struct drm_framebuffer *fb,
-                                     struct drm_pending_vblank_event *event,
-                                     uint32_t page_flip_flags)
-{
-       struct atmel_hlcdc_crtc *crtc = drm_crtc_to_atmel_hlcdc_crtc(c);
-       struct atmel_hlcdc_plane_update_req req;
-       struct drm_plane *plane = c->primary;
-       struct drm_device *dev = c->dev;
-       unsigned long flags;
-       int ret = 0;
-
-       spin_lock_irqsave(&dev->event_lock, flags);
-       if (crtc->event)
-               ret = -EBUSY;
-       spin_unlock_irqrestore(&dev->event_lock, flags);
-
-       if (ret)
-               return ret;
-
-       memset(&req, 0, sizeof(req));
-       req.crtc_x = 0;
-       req.crtc_y = 0;
-       req.crtc_h = c->mode.crtc_vdisplay;
-       req.crtc_w = c->mode.crtc_hdisplay;
-       req.src_x = c->x << 16;
-       req.src_y = c->y << 16;
-       req.src_w = req.crtc_w << 16;
-       req.src_h = req.crtc_h << 16;
-       req.fb = fb;
-
-       ret = atmel_hlcdc_plane_prepare_update_req(plane, &req, &c->hwmode);
-       if (ret)
-               return ret;
-
-       if (event) {
-               drm_vblank_get(c->dev, crtc->id);
-               spin_lock_irqsave(&dev->event_lock, flags);
-               crtc->event = event;
-               spin_unlock_irqrestore(&dev->event_lock, flags);
-       }
-
-       ret = atmel_hlcdc_plane_apply_update_req(plane, &req);
-       if (ret)
-               crtc->event = NULL;
-       else
-               plane->fb = fb;
-
-       return ret;
-}
-
 static const struct drm_crtc_funcs atmel_hlcdc_crtc_funcs = {
-       .page_flip = atmel_hlcdc_crtc_page_flip,
-       .set_config = drm_crtc_helper_set_config,
+       .page_flip = drm_atomic_helper_page_flip,
+       .set_config = drm_atomic_helper_set_config,
        .destroy = atmel_hlcdc_crtc_destroy,
+       .reset = drm_atomic_helper_crtc_reset,
+       .atomic_duplicate_state =  drm_atomic_helper_crtc_duplicate_state,
+       .atomic_destroy_state = drm_atomic_helper_crtc_destroy_state,
 };
 
 int atmel_hlcdc_crtc_create(struct drm_device *dev)
@@ -375,7 +313,6 @@ int atmel_hlcdc_crtc_create(struct drm_device *dev)
        if (!crtc)
                return -ENOMEM;
 
-       crtc->dpms = DRM_MODE_DPMS_OFF;
        crtc->dc = dc;
 
        ret = drm_crtc_init_with_planes(dev, &crtc->base,
index 7320a6c6613f174c1776f75c6dcc832cf91f1ad8..47fd1470f755d5edd7bef48a97275f8480b43f3a 100644 (file)
@@ -222,6 +222,8 @@ static void atmel_hlcdc_fb_output_poll_changed(struct drm_device *dev)
 static const struct drm_mode_config_funcs mode_config_funcs = {
        .fb_create = atmel_hlcdc_fb_create,
        .output_poll_changed = atmel_hlcdc_fb_output_poll_changed,
+       .atomic_check = drm_atomic_helper_check,
+       .atomic_commit = drm_atomic_helper_commit,
 };
 
 static int atmel_hlcdc_dc_modeset_init(struct drm_device *dev)
@@ -319,6 +321,8 @@ static int atmel_hlcdc_dc_load(struct drm_device *dev)
                goto err_periph_clk_disable;
        }
 
+       drm_mode_config_reset(dev);
+
        ret = drm_vblank_init(dev, 1);
        if (ret < 0) {
                dev_err(dev->dev, "failed to initialize vblank\n");
index 7bc96af3397a2d51e2c157d6a5254157fc7bf3a5..015c3f13b7f872d1ab7beca1d039d76b0e1c2bfe 100644 (file)
 #include <linux/irqdomain.h>
 #include <linux/pwm.h>
 
+#include <drm/drm_atomic.h>
+#include <drm/drm_atomic_helper.h>
 #include <drm/drm_crtc.h>
 #include <drm/drm_crtc_helper.h>
 #include <drm/drm_fb_cma_helper.h>
 #include <drm/drm_gem_cma_helper.h>
 #include <drm/drm_panel.h>
+#include <drm/drm_plane_helper.h>
 #include <drm/drmP.h>
 
 #include "atmel_hlcdc_layer.h"
@@ -69,7 +72,6 @@ struct atmel_hlcdc_dc_desc {
  */
 struct atmel_hlcdc_plane_properties {
        struct drm_property *alpha;
-       struct drm_property *rotation;
 };
 
 /**
@@ -84,7 +86,6 @@ struct atmel_hlcdc_plane {
        struct drm_plane base;
        struct atmel_hlcdc_layer layer;
        struct atmel_hlcdc_plane_properties *properties;
-       unsigned int rotation;
 };
 
 static inline struct atmel_hlcdc_plane *
@@ -99,43 +100,6 @@ atmel_hlcdc_layer_to_plane(struct atmel_hlcdc_layer *l)
        return container_of(l, struct atmel_hlcdc_plane, layer);
 }
 
-/**
- * Atmel HLCDC Plane update request structure.
- *
- * @crtc_x: x position of the plane relative to the CRTC
- * @crtc_y: y position of the plane relative to the CRTC
- * @crtc_w: visible width of the plane
- * @crtc_h: visible height of the plane
- * @src_x: x buffer position
- * @src_y: y buffer position
- * @src_w: buffer width
- * @src_h: buffer height
- * @fb: framebuffer object object
- * @bpp: bytes per pixel deduced from pixel_format
- * @offsets: offsets to apply to the GEM buffers
- * @xstride: value to add to the pixel pointer between each line
- * @pstride: value to add to the pixel pointer between each pixel
- * @nplanes: number of planes (deduced from pixel_format)
- */
-struct atmel_hlcdc_plane_update_req {
-       int crtc_x;
-       int crtc_y;
-       unsigned int crtc_w;
-       unsigned int crtc_h;
-       uint32_t src_x;
-       uint32_t src_y;
-       uint32_t src_w;
-       uint32_t src_h;
-       struct drm_framebuffer *fb;
-
-       /* These fields are private and should not be touched */
-       int bpp[ATMEL_HLCDC_MAX_PLANES];
-       unsigned int offsets[ATMEL_HLCDC_MAX_PLANES];
-       int xstride[ATMEL_HLCDC_MAX_PLANES];
-       int pstride[ATMEL_HLCDC_MAX_PLANES];
-       int nplanes;
-};
-
 /**
  * Atmel HLCDC Planes.
  *
@@ -184,23 +148,6 @@ int atmel_hlcdc_dc_mode_valid(struct atmel_hlcdc_dc *dc,
 struct atmel_hlcdc_planes *
 atmel_hlcdc_create_planes(struct drm_device *dev);
 
-int atmel_hlcdc_plane_prepare_update_req(struct drm_plane *p,
-                               struct atmel_hlcdc_plane_update_req *req,
-                               const struct drm_display_mode *mode);
-
-int atmel_hlcdc_plane_apply_update_req(struct drm_plane *p,
-                               struct atmel_hlcdc_plane_update_req *req);
-
-int atmel_hlcdc_plane_update_with_mode(struct drm_plane *p,
-                                      struct drm_crtc *crtc,
-                                      struct drm_framebuffer *fb,
-                                      int crtc_x, int crtc_y,
-                                      unsigned int crtc_w,
-                                      unsigned int crtc_h,
-                                      uint32_t src_x, uint32_t src_y,
-                                      uint32_t src_w, uint32_t src_h,
-                                      const struct drm_display_mode *mode);
-
 void atmel_hlcdc_crtc_irq(struct drm_crtc *c);
 
 void atmel_hlcdc_crtc_cancel_page_flip(struct drm_crtc *crtc,
index 063d2a7b941fcaa4f5b527afd41a193fd382d64d..d1dca39b76dddce369e28379b052196a3939ab07 100644 (file)
@@ -298,7 +298,7 @@ void atmel_hlcdc_layer_irq(struct atmel_hlcdc_layer *layer)
        spin_unlock_irqrestore(&layer->lock, flags);
 }
 
-int atmel_hlcdc_layer_disable(struct atmel_hlcdc_layer *layer)
+void atmel_hlcdc_layer_disable(struct atmel_hlcdc_layer *layer)
 {
        struct atmel_hlcdc_layer_dma_channel *dma = &layer->dma;
        struct atmel_hlcdc_layer_update *upd = &layer->update;
@@ -340,8 +340,6 @@ int atmel_hlcdc_layer_disable(struct atmel_hlcdc_layer *layer)
        dma->status = ATMEL_HLCDC_LAYER_DISABLED;
 
        spin_unlock_irqrestore(&layer->lock, flags);
-
-       return 0;
 }
 
 int atmel_hlcdc_layer_update_start(struct atmel_hlcdc_layer *layer)
index 27e56c0862ec13602a3ee840b30af7ba547c5a8f..9beabc940bce58e9b965533827f4247f230a435d 100644 (file)
 #define ATMEL_HLCDC_LAYER_DISCEN               BIT(11)
 #define ATMEL_HLCDC_LAYER_GA_SHIFT             16
 #define ATMEL_HLCDC_LAYER_GA_MASK              GENMASK(23, ATMEL_HLCDC_LAYER_GA_SHIFT)
+#define ATMEL_HLCDC_LAYER_GA(x)                        ((x) << ATMEL_HLCDC_LAYER_GA_SHIFT)
 
 #define ATMEL_HLCDC_LAYER_CSC_CFG(p, o)                ATMEL_HLCDC_LAYER_CFG(p, (p)->desc->layout.csc + o)
 
@@ -376,7 +377,7 @@ int atmel_hlcdc_layer_init(struct drm_device *dev,
 void atmel_hlcdc_layer_cleanup(struct drm_device *dev,
                               struct atmel_hlcdc_layer *layer);
 
-int atmel_hlcdc_layer_disable(struct atmel_hlcdc_layer *layer);
+void atmel_hlcdc_layer_disable(struct atmel_hlcdc_layer *layer);
 
 int atmel_hlcdc_layer_update_start(struct atmel_hlcdc_layer *layer);
 
index c402192362c572c03feda8f70ae18d4cee9f2ae6..9c45130053106808c35b8dc9173942c5b5297bfc 100644 (file)
@@ -86,25 +86,22 @@ atmel_hlcdc_rgb_output_to_panel(struct atmel_hlcdc_rgb_output *output)
        return container_of(output, struct atmel_hlcdc_panel, base);
 }
 
-static void atmel_hlcdc_panel_encoder_dpms(struct drm_encoder *encoder,
-                                          int mode)
+static void atmel_hlcdc_panel_encoder_enable(struct drm_encoder *encoder)
 {
        struct atmel_hlcdc_rgb_output *rgb =
                        drm_encoder_to_atmel_hlcdc_rgb_output(encoder);
        struct atmel_hlcdc_panel *panel = atmel_hlcdc_rgb_output_to_panel(rgb);
 
-       if (mode != DRM_MODE_DPMS_ON)
-               mode = DRM_MODE_DPMS_OFF;
-
-       if (mode == rgb->dpms)
-               return;
+       drm_panel_enable(panel->panel);
+}
 
-       if (mode != DRM_MODE_DPMS_ON)
-               drm_panel_disable(panel->panel);
-       else
-               drm_panel_enable(panel->panel);
+static void atmel_hlcdc_panel_encoder_disable(struct drm_encoder *encoder)
+{
+       struct atmel_hlcdc_rgb_output *rgb =
+                       drm_encoder_to_atmel_hlcdc_rgb_output(encoder);
+       struct atmel_hlcdc_panel *panel = atmel_hlcdc_rgb_output_to_panel(rgb);
 
-       rgb->dpms = mode;
+       drm_panel_disable(panel->panel);
 }
 
 static bool
@@ -115,16 +112,6 @@ atmel_hlcdc_panel_encoder_mode_fixup(struct drm_encoder *encoder,
        return true;
 }
 
-static void atmel_hlcdc_panel_encoder_prepare(struct drm_encoder *encoder)
-{
-       atmel_hlcdc_panel_encoder_dpms(encoder, DRM_MODE_DPMS_OFF);
-}
-
-static void atmel_hlcdc_panel_encoder_commit(struct drm_encoder *encoder)
-{
-       atmel_hlcdc_panel_encoder_dpms(encoder, DRM_MODE_DPMS_ON);
-}
-
 static void
 atmel_hlcdc_rgb_encoder_mode_set(struct drm_encoder *encoder,
                                 struct drm_display_mode *mode,
@@ -156,11 +143,10 @@ atmel_hlcdc_rgb_encoder_mode_set(struct drm_encoder *encoder,
 }
 
 static struct drm_encoder_helper_funcs atmel_hlcdc_panel_encoder_helper_funcs = {
-       .dpms = atmel_hlcdc_panel_encoder_dpms,
        .mode_fixup = atmel_hlcdc_panel_encoder_mode_fixup,
-       .prepare = atmel_hlcdc_panel_encoder_prepare,
-       .commit = atmel_hlcdc_panel_encoder_commit,
        .mode_set = atmel_hlcdc_rgb_encoder_mode_set,
+       .disable = atmel_hlcdc_panel_encoder_disable,
+       .enable = atmel_hlcdc_panel_encoder_enable,
 };
 
 static void atmel_hlcdc_rgb_encoder_destroy(struct drm_encoder *encoder)
@@ -226,10 +212,13 @@ atmel_hlcdc_panel_connector_destroy(struct drm_connector *connector)
 }
 
 static const struct drm_connector_funcs atmel_hlcdc_panel_connector_funcs = {
-       .dpms = drm_helper_connector_dpms,
+       .dpms = drm_atomic_helper_connector_dpms,
        .detect = atmel_hlcdc_panel_connector_detect,
        .fill_modes = drm_helper_probe_single_connector_modes,
        .destroy = atmel_hlcdc_panel_connector_destroy,
+       .reset = drm_atomic_helper_connector_reset,
+       .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
+       .atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
 };
 
 static int atmel_hlcdc_create_panel_output(struct drm_device *dev,
index c5892dcfd745cc29dc638e00aa55515d95ed209f..6c6fcaef356d5f85dc2b63aff96504650d0f5680 100644 (file)
 
 #include "atmel_hlcdc_dc.h"
 
+/**
+ * Atmel HLCDC Plane state structure.
+ *
+ * @base: DRM plane state
+ * @crtc_x: x position of the plane relative to the CRTC
+ * @crtc_y: y position of the plane relative to the CRTC
+ * @crtc_w: visible width of the plane
+ * @crtc_h: visible height of the plane
+ * @src_x: x buffer position
+ * @src_y: y buffer position
+ * @src_w: buffer width
+ * @src_h: buffer height
+ * @alpha: alpha blending of the plane
+ * @bpp: bytes per pixel deduced from pixel_format
+ * @offsets: offsets to apply to the GEM buffers
+ * @xstride: value to add to the pixel pointer between each line
+ * @pstride: value to add to the pixel pointer between each pixel
+ * @nplanes: number of planes (deduced from pixel_format)
+ */
+struct atmel_hlcdc_plane_state {
+       struct drm_plane_state base;
+       int crtc_x;
+       int crtc_y;
+       unsigned int crtc_w;
+       unsigned int crtc_h;
+       uint32_t src_x;
+       uint32_t src_y;
+       uint32_t src_w;
+       uint32_t src_h;
+
+       u8 alpha;
+
+       /* These fields are private and should not be touched */
+       int bpp[ATMEL_HLCDC_MAX_PLANES];
+       unsigned int offsets[ATMEL_HLCDC_MAX_PLANES];
+       int xstride[ATMEL_HLCDC_MAX_PLANES];
+       int pstride[ATMEL_HLCDC_MAX_PLANES];
+       int nplanes;
+};
+
+static inline struct atmel_hlcdc_plane_state *
+drm_plane_state_to_atmel_hlcdc_plane_state(struct drm_plane_state *s)
+{
+       return container_of(s, struct atmel_hlcdc_plane_state, base);
+}
+
 #define SUBPIXEL_MASK                  0xffff
 
 static uint32_t rgb_formats[] = {
@@ -128,7 +174,7 @@ static int atmel_hlcdc_format_to_plane_mode(u32 format, u32 *mode)
        return 0;
 }
 
-static bool atmel_hlcdc_format_embedds_alpha(u32 format)
+static bool atmel_hlcdc_format_embeds_alpha(u32 format)
 {
        int i;
 
@@ -204,7 +250,7 @@ static u32 heo_upscaling_ycoef[] = {
 
 static void
 atmel_hlcdc_plane_update_pos_and_size(struct atmel_hlcdc_plane *plane,
-                               struct atmel_hlcdc_plane_update_req *req)
+                                     struct atmel_hlcdc_plane_state *state)
 {
        const struct atmel_hlcdc_layer_cfg_layout *layout =
                                                &plane->layer.desc->layout;
@@ -213,69 +259,69 @@ atmel_hlcdc_plane_update_pos_and_size(struct atmel_hlcdc_plane *plane,
                atmel_hlcdc_layer_update_cfg(&plane->layer,
                                             layout->size,
                                             0xffffffff,
-                                            (req->crtc_w - 1) |
-                                            ((req->crtc_h - 1) << 16));
+                                            (state->crtc_w - 1) |
+                                            ((state->crtc_h - 1) << 16));
 
        if (layout->memsize)
                atmel_hlcdc_layer_update_cfg(&plane->layer,
                                             layout->memsize,
                                             0xffffffff,
-                                            (req->src_w - 1) |
-                                            ((req->src_h - 1) << 16));
+                                            (state->src_w - 1) |
+                                            ((state->src_h - 1) << 16));
 
        if (layout->pos)
                atmel_hlcdc_layer_update_cfg(&plane->layer,
                                             layout->pos,
                                             0xffffffff,
-                                            req->crtc_x |
-                                            (req->crtc_y  << 16));
+                                            state->crtc_x |
+                                            (state->crtc_y  << 16));
 
        /* TODO: rework the rescaling part */
-       if (req->crtc_w != req->src_w || req->crtc_h != req->src_h) {
+       if (state->crtc_w != state->src_w || state->crtc_h != state->src_h) {
                u32 factor_reg = 0;
 
-               if (req->crtc_w != req->src_w) {
+               if (state->crtc_w != state->src_w) {
                        int i;
                        u32 factor;
                        u32 *coeff_tab = heo_upscaling_xcoef;
                        u32 max_memsize;
 
-                       if (req->crtc_w < req->src_w)
+                       if (state->crtc_w < state->src_w)
                                coeff_tab = heo_downscaling_xcoef;
                        for (i = 0; i < ARRAY_SIZE(heo_upscaling_xcoef); i++)
                                atmel_hlcdc_layer_update_cfg(&plane->layer,
                                                             17 + i,
                                                             0xffffffff,
                                                             coeff_tab[i]);
-                       factor = ((8 * 256 * req->src_w) - (256 * 4)) /
-                                req->crtc_w;
+                       factor = ((8 * 256 * state->src_w) - (256 * 4)) /
+                                state->crtc_w;
                        factor++;
-                       max_memsize = ((factor * req->crtc_w) + (256 * 4)) /
+                       max_memsize = ((factor * state->crtc_w) + (256 * 4)) /
                                      2048;
-                       if (max_memsize > req->src_w)
+                       if (max_memsize > state->src_w)
                                factor--;
                        factor_reg |= factor | 0x80000000;
                }
 
-               if (req->crtc_h != req->src_h) {
+               if (state->crtc_h != state->src_h) {
                        int i;
                        u32 factor;
                        u32 *coeff_tab = heo_upscaling_ycoef;
                        u32 max_memsize;
 
-                       if (req->crtc_w < req->src_w)
+                       if (state->crtc_w < state->src_w)
                                coeff_tab = heo_downscaling_ycoef;
                        for (i = 0; i < ARRAY_SIZE(heo_upscaling_ycoef); i++)
                                atmel_hlcdc_layer_update_cfg(&plane->layer,
                                                             33 + i,
                                                             0xffffffff,
                                                             coeff_tab[i]);
-                       factor = ((8 * 256 * req->src_w) - (256 * 4)) /
-                                req->crtc_w;
+                       factor = ((8 * 256 * state->src_w) - (256 * 4)) /
+                                state->crtc_w;
                        factor++;
-                       max_memsize = ((factor * req->crtc_w) + (256 * 4)) /
+                       max_memsize = ((factor * state->crtc_w) + (256 * 4)) /
                                      2048;
-                       if (max_memsize > req->src_w)
+                       if (max_memsize > state->src_w)
                                factor--;
                        factor_reg |= (factor << 16) | 0x80000000;
                }
@@ -287,7 +333,7 @@ atmel_hlcdc_plane_update_pos_and_size(struct atmel_hlcdc_plane *plane,
 
 static void
 atmel_hlcdc_plane_update_general_settings(struct atmel_hlcdc_plane *plane,
-                               struct atmel_hlcdc_plane_update_req *req)
+                                       struct atmel_hlcdc_plane_state *state)
 {
        const struct atmel_hlcdc_layer_cfg_layout *layout =
                                                &plane->layer.desc->layout;
@@ -297,10 +343,11 @@ atmel_hlcdc_plane_update_general_settings(struct atmel_hlcdc_plane *plane,
                cfg |= ATMEL_HLCDC_LAYER_OVR | ATMEL_HLCDC_LAYER_ITER2BL |
                       ATMEL_HLCDC_LAYER_ITER;
 
-               if (atmel_hlcdc_format_embedds_alpha(req->fb->pixel_format))
+               if (atmel_hlcdc_format_embeds_alpha(state->base.fb->pixel_format))
                        cfg |= ATMEL_HLCDC_LAYER_LAEN;
                else
-                       cfg |= ATMEL_HLCDC_LAYER_GAEN;
+                       cfg |= ATMEL_HLCDC_LAYER_GAEN |
+                              ATMEL_HLCDC_LAYER_GA(state->alpha);
        }
 
        atmel_hlcdc_layer_update_cfg(&plane->layer,
@@ -312,24 +359,26 @@ atmel_hlcdc_plane_update_general_settings(struct atmel_hlcdc_plane *plane,
                                     ATMEL_HLCDC_LAYER_ITER2BL |
                                     ATMEL_HLCDC_LAYER_ITER |
                                     ATMEL_HLCDC_LAYER_GAEN |
+                                    ATMEL_HLCDC_LAYER_GA_MASK |
                                     ATMEL_HLCDC_LAYER_LAEN |
                                     ATMEL_HLCDC_LAYER_OVR |
                                     ATMEL_HLCDC_LAYER_DMA, cfg);
 }
 
 static void atmel_hlcdc_plane_update_format(struct atmel_hlcdc_plane *plane,
-                               struct atmel_hlcdc_plane_update_req *req)
+                                       struct atmel_hlcdc_plane_state *state)
 {
        u32 cfg;
        int ret;
 
-       ret = atmel_hlcdc_format_to_plane_mode(req->fb->pixel_format, &cfg);
+       ret = atmel_hlcdc_format_to_plane_mode(state->base.fb->pixel_format,
+                                              &cfg);
        if (ret)
                return;
 
-       if ((req->fb->pixel_format == DRM_FORMAT_YUV422 ||
-            req->fb->pixel_format == DRM_FORMAT_NV61) &&
-           (plane->rotation & (BIT(DRM_ROTATE_90) | BIT(DRM_ROTATE_270))))
+       if ((state->base.fb->pixel_format == DRM_FORMAT_YUV422 ||
+            state->base.fb->pixel_format == DRM_FORMAT_NV61) &&
+           (state->base.rotation & (BIT(DRM_ROTATE_90) | BIT(DRM_ROTATE_270))))
                cfg |= ATMEL_HLCDC_YUV422ROT;
 
        atmel_hlcdc_layer_update_cfg(&plane->layer,
@@ -341,7 +390,7 @@ static void atmel_hlcdc_plane_update_format(struct atmel_hlcdc_plane *plane,
         * Rotation optimization is not working on RGB888 (rotation is still
         * working but without any optimization).
         */
-       if (req->fb->pixel_format == DRM_FORMAT_RGB888)
+       if (state->base.fb->pixel_format == DRM_FORMAT_RGB888)
                cfg = ATMEL_HLCDC_LAYER_DMA_ROTDIS;
        else
                cfg = 0;
@@ -352,73 +401,44 @@ static void atmel_hlcdc_plane_update_format(struct atmel_hlcdc_plane *plane,
 }
 
 static void atmel_hlcdc_plane_update_buffers(struct atmel_hlcdc_plane *plane,
-                               struct atmel_hlcdc_plane_update_req *req)
+                                       struct atmel_hlcdc_plane_state *state)
 {
        struct atmel_hlcdc_layer *layer = &plane->layer;
        const struct atmel_hlcdc_layer_cfg_layout *layout =
                                                        &layer->desc->layout;
        int i;
 
-       atmel_hlcdc_layer_update_set_fb(&plane->layer, req->fb, req->offsets);
+       atmel_hlcdc_layer_update_set_fb(&plane->layer, state->base.fb,
+                                       state->offsets);
 
-       for (i = 0; i < req->nplanes; i++) {
+       for (i = 0; i < state->nplanes; i++) {
                if (layout->xstride[i]) {
                        atmel_hlcdc_layer_update_cfg(&plane->layer,
                                                layout->xstride[i],
                                                0xffffffff,
-                                               req->xstride[i]);
+                                               state->xstride[i]);
                }
 
                if (layout->pstride[i]) {
                        atmel_hlcdc_layer_update_cfg(&plane->layer,
                                                layout->pstride[i],
                                                0xffffffff,
-                                               req->pstride[i]);
+                                               state->pstride[i]);
                }
        }
 }
 
-static int atmel_hlcdc_plane_check_update_req(struct drm_plane *p,
-                               struct atmel_hlcdc_plane_update_req *req,
-                               const struct drm_display_mode *mode)
+static int atmel_hlcdc_plane_atomic_check(struct drm_plane *p,
+                                         struct drm_plane_state *s)
 {
        struct atmel_hlcdc_plane *plane = drm_plane_to_atmel_hlcdc_plane(p);
+       struct atmel_hlcdc_plane_state *state =
+                               drm_plane_state_to_atmel_hlcdc_plane_state(s);
        const struct atmel_hlcdc_layer_cfg_layout *layout =
                                                &plane->layer.desc->layout;
-
-       if (!layout->size &&
-           (mode->hdisplay != req->crtc_w ||
-            mode->vdisplay != req->crtc_h))
-               return -EINVAL;
-
-       if (plane->layer.desc->max_height &&
-           req->crtc_h > plane->layer.desc->max_height)
-               return -EINVAL;
-
-       if (plane->layer.desc->max_width &&
-           req->crtc_w > plane->layer.desc->max_width)
-               return -EINVAL;
-
-       if ((req->crtc_h != req->src_h || req->crtc_w != req->src_w) &&
-           (!layout->memsize ||
-            atmel_hlcdc_format_embedds_alpha(req->fb->pixel_format)))
-               return -EINVAL;
-
-       if (req->crtc_x < 0 || req->crtc_y < 0)
-               return -EINVAL;
-
-       if (req->crtc_w + req->crtc_x > mode->hdisplay ||
-           req->crtc_h + req->crtc_y > mode->vdisplay)
-               return -EINVAL;
-
-       return 0;
-}
-
-int atmel_hlcdc_plane_prepare_update_req(struct drm_plane *p,
-                               struct atmel_hlcdc_plane_update_req *req,
-                               const struct drm_display_mode *mode)
-{
-       struct atmel_hlcdc_plane *plane = drm_plane_to_atmel_hlcdc_plane(p);
+       struct drm_framebuffer *fb = state->base.fb;
+       const struct drm_display_mode *mode;
+       struct drm_crtc_state *crtc_state;
        unsigned int patched_crtc_w;
        unsigned int patched_crtc_h;
        unsigned int patched_src_w;
@@ -430,196 +450,194 @@ int atmel_hlcdc_plane_prepare_update_req(struct drm_plane *p,
        int vsub = 1;
        int i;
 
-       if ((req->src_x | req->src_y | req->src_w | req->src_h) &
+       if (!state->base.crtc || !fb)
+               return 0;
+
+       crtc_state = s->state->crtc_states[drm_crtc_index(s->crtc)];
+       mode = &crtc_state->adjusted_mode;
+
+       state->src_x = s->src_x;
+       state->src_y = s->src_y;
+       state->src_h = s->src_h;
+       state->src_w = s->src_w;
+       state->crtc_x = s->crtc_x;
+       state->crtc_y = s->crtc_y;
+       state->crtc_h = s->crtc_h;
+       state->crtc_w = s->crtc_w;
+       if ((state->src_x | state->src_y | state->src_w | state->src_h) &
            SUBPIXEL_MASK)
                return -EINVAL;
 
-       req->src_x >>= 16;
-       req->src_y >>= 16;
-       req->src_w >>= 16;
-       req->src_h >>= 16;
+       state->src_x >>= 16;
+       state->src_y >>= 16;
+       state->src_w >>= 16;
+       state->src_h >>= 16;
 
-       req->nplanes = drm_format_num_planes(req->fb->pixel_format);
-       if (req->nplanes > ATMEL_HLCDC_MAX_PLANES)
+       state->nplanes = drm_format_num_planes(fb->pixel_format);
+       if (state->nplanes > ATMEL_HLCDC_MAX_PLANES)
                return -EINVAL;
 
        /*
         * Swap width and size in case of 90 or 270 degrees rotation
         */
-       if (plane->rotation & (BIT(DRM_ROTATE_90) | BIT(DRM_ROTATE_270))) {
-               tmp = req->crtc_w;
-               req->crtc_w = req->crtc_h;
-               req->crtc_h = tmp;
-               tmp = req->src_w;
-               req->src_w = req->src_h;
-               req->src_h = tmp;
+       if (state->base.rotation & (BIT(DRM_ROTATE_90) | BIT(DRM_ROTATE_270))) {
+               tmp = state->crtc_w;
+               state->crtc_w = state->crtc_h;
+               state->crtc_h = tmp;
+               tmp = state->src_w;
+               state->src_w = state->src_h;
+               state->src_h = tmp;
        }
 
-       if (req->crtc_x + req->crtc_w > mode->hdisplay)
-               patched_crtc_w = mode->hdisplay - req->crtc_x;
+       if (state->crtc_x + state->crtc_w > mode->hdisplay)
+               patched_crtc_w = mode->hdisplay - state->crtc_x;
        else
-               patched_crtc_w = req->crtc_w;
+               patched_crtc_w = state->crtc_w;
 
-       if (req->crtc_x < 0) {
-               patched_crtc_w += req->crtc_x;
-               x_offset = -req->crtc_x;
-               req->crtc_x = 0;
+       if (state->crtc_x < 0) {
+               patched_crtc_w += state->crtc_x;
+               x_offset = -state->crtc_x;
+               state->crtc_x = 0;
        }
 
-       if (req->crtc_y + req->crtc_h > mode->vdisplay)
-               patched_crtc_h = mode->vdisplay - req->crtc_y;
+       if (state->crtc_y + state->crtc_h > mode->vdisplay)
+               patched_crtc_h = mode->vdisplay - state->crtc_y;
        else
-               patched_crtc_h = req->crtc_h;
+               patched_crtc_h = state->crtc_h;
 
-       if (req->crtc_y < 0) {
-               patched_crtc_h += req->crtc_y;
-               y_offset = -req->crtc_y;
-               req->crtc_y = 0;
+       if (state->crtc_y < 0) {
+               patched_crtc_h += state->crtc_y;
+               y_offset = -state->crtc_y;
+               state->crtc_y = 0;
        }
 
-       patched_src_w = DIV_ROUND_CLOSEST(patched_crtc_w * req->src_w,
-                                         req->crtc_w);
-       patched_src_h = DIV_ROUND_CLOSEST(patched_crtc_h * req->src_h,
-                                         req->crtc_h);
+       patched_src_w = DIV_ROUND_CLOSEST(patched_crtc_w * state->src_w,
+                                         state->crtc_w);
+       patched_src_h = DIV_ROUND_CLOSEST(patched_crtc_h * state->src_h,
+                                         state->crtc_h);
 
-       hsub = drm_format_horz_chroma_subsampling(req->fb->pixel_format);
-       vsub = drm_format_vert_chroma_subsampling(req->fb->pixel_format);
+       hsub = drm_format_horz_chroma_subsampling(fb->pixel_format);
+       vsub = drm_format_vert_chroma_subsampling(fb->pixel_format);
 
-       for (i = 0; i < req->nplanes; i++) {
+       for (i = 0; i < state->nplanes; i++) {
                unsigned int offset = 0;
                int xdiv = i ? hsub : 1;
                int ydiv = i ? vsub : 1;
 
-               req->bpp[i] = drm_format_plane_cpp(req->fb->pixel_format, i);
-               if (!req->bpp[i])
+               state->bpp[i] = drm_format_plane_cpp(fb->pixel_format, i);
+               if (!state->bpp[i])
                        return -EINVAL;
 
-               switch (plane->rotation & 0xf) {
+               switch (state->base.rotation & 0xf) {
                case BIT(DRM_ROTATE_90):
-                       offset = ((y_offset + req->src_y + patched_src_w - 1) /
-                                 ydiv) * req->fb->pitches[i];
-                       offset += ((x_offset + req->src_x) / xdiv) *
-                                 req->bpp[i];
-                       req->xstride[i] = ((patched_src_w - 1) / ydiv) *
-                                         req->fb->pitches[i];
-                       req->pstride[i] = -req->fb->pitches[i] - req->bpp[i];
+                       offset = ((y_offset + state->src_y + patched_src_w - 1) /
+                                 ydiv) * fb->pitches[i];
+                       offset += ((x_offset + state->src_x) / xdiv) *
+                                 state->bpp[i];
+                       state->xstride[i] = ((patched_src_w - 1) / ydiv) *
+                                         fb->pitches[i];
+                       state->pstride[i] = -fb->pitches[i] - state->bpp[i];
                        break;
                case BIT(DRM_ROTATE_180):
-                       offset = ((y_offset + req->src_y + patched_src_h - 1) /
-                                 ydiv) * req->fb->pitches[i];
-                       offset += ((x_offset + req->src_x + patched_src_w - 1) /
-                                  xdiv) * req->bpp[i];
-                       req->xstride[i] = ((((patched_src_w - 1) / xdiv) - 1) *
-                                          req->bpp[i]) - req->fb->pitches[i];
-                       req->pstride[i] = -2 * req->bpp[i];
+                       offset = ((y_offset + state->src_y + patched_src_h - 1) /
+                                 ydiv) * fb->pitches[i];
+                       offset += ((x_offset + state->src_x + patched_src_w - 1) /
+                                  xdiv) * state->bpp[i];
+                       state->xstride[i] = ((((patched_src_w - 1) / xdiv) - 1) *
+                                          state->bpp[i]) - fb->pitches[i];
+                       state->pstride[i] = -2 * state->bpp[i];
                        break;
                case BIT(DRM_ROTATE_270):
-                       offset = ((y_offset + req->src_y) / ydiv) *
-                                req->fb->pitches[i];
-                       offset += ((x_offset + req->src_x + patched_src_h - 1) /
-                                  xdiv) * req->bpp[i];
-                       req->xstride[i] = -(((patched_src_w - 1) / ydiv) *
-                                           req->fb->pitches[i]) -
-                                         (2 * req->bpp[i]);
-                       req->pstride[i] = req->fb->pitches[i] - req->bpp[i];
+                       offset = ((y_offset + state->src_y) / ydiv) *
+                                fb->pitches[i];
+                       offset += ((x_offset + state->src_x + patched_src_h - 1) /
+                                  xdiv) * state->bpp[i];
+                       state->xstride[i] = -(((patched_src_w - 1) / ydiv) *
+                                           fb->pitches[i]) -
+                                         (2 * state->bpp[i]);
+                       state->pstride[i] = fb->pitches[i] - state->bpp[i];
                        break;
                case BIT(DRM_ROTATE_0):
                default:
-                       offset = ((y_offset + req->src_y) / ydiv) *
-                                req->fb->pitches[i];
-                       offset += ((x_offset + req->src_x) / xdiv) *
-                                 req->bpp[i];
-                       req->xstride[i] = req->fb->pitches[i] -
+                       offset = ((y_offset + state->src_y) / ydiv) *
+                                fb->pitches[i];
+                       offset += ((x_offset + state->src_x) / xdiv) *
+                                 state->bpp[i];
+                       state->xstride[i] = fb->pitches[i] -
                                          ((patched_src_w / xdiv) *
-                                          req->bpp[i]);
-                       req->pstride[i] = 0;
+                                          state->bpp[i]);
+                       state->pstride[i] = 0;
                        break;
                }
 
-               req->offsets[i] = offset + req->fb->offsets[i];
+               state->offsets[i] = offset + fb->offsets[i];
        }
 
-       req->src_w = patched_src_w;
-       req->src_h = patched_src_h;
-       req->crtc_w = patched_crtc_w;
-       req->crtc_h = patched_crtc_h;
+       state->src_w = patched_src_w;
+       state->src_h = patched_src_h;
+       state->crtc_w = patched_crtc_w;
+       state->crtc_h = patched_crtc_h;
 
-       return atmel_hlcdc_plane_check_update_req(p, req, mode);
-}
+       if (!layout->size &&
+           (mode->hdisplay != state->crtc_w ||
+            mode->vdisplay != state->crtc_h))
+               return -EINVAL;
 
-int atmel_hlcdc_plane_apply_update_req(struct drm_plane *p,
-                               struct atmel_hlcdc_plane_update_req *req)
-{
-       struct atmel_hlcdc_plane *plane = drm_plane_to_atmel_hlcdc_plane(p);
-       int ret;
+       if (plane->layer.desc->max_height &&
+           state->crtc_h > plane->layer.desc->max_height)
+               return -EINVAL;
 
-       ret = atmel_hlcdc_layer_update_start(&plane->layer);
-       if (ret)
-               return ret;
+       if (plane->layer.desc->max_width &&
+           state->crtc_w > plane->layer.desc->max_width)
+               return -EINVAL;
 
-       atmel_hlcdc_plane_update_pos_and_size(plane, req);
-       atmel_hlcdc_plane_update_general_settings(plane, req);
-       atmel_hlcdc_plane_update_format(plane, req);
-       atmel_hlcdc_plane_update_buffers(plane, req);
+       if ((state->crtc_h != state->src_h || state->crtc_w != state->src_w) &&
+           (!layout->memsize ||
+            atmel_hlcdc_format_embeds_alpha(state->base.fb->pixel_format)))
+               return -EINVAL;
 
-       atmel_hlcdc_layer_update_commit(&plane->layer);
+       if (state->crtc_x < 0 || state->crtc_y < 0)
+               return -EINVAL;
+
+       if (state->crtc_w + state->crtc_x > mode->hdisplay ||
+           state->crtc_h + state->crtc_y > mode->vdisplay)
+               return -EINVAL;
 
        return 0;
 }
 
-int atmel_hlcdc_plane_update_with_mode(struct drm_plane *p,
-                                      struct drm_crtc *crtc,
-                                      struct drm_framebuffer *fb,
-                                      int crtc_x, int crtc_y,
-                                      unsigned int crtc_w,
-                                      unsigned int crtc_h,
-                                      uint32_t src_x, uint32_t src_y,
-                                      uint32_t src_w, uint32_t src_h,
-                                      const struct drm_display_mode *mode)
+static int atmel_hlcdc_plane_prepare_fb(struct drm_plane *p,
+                                       struct drm_framebuffer *fb)
 {
        struct atmel_hlcdc_plane *plane = drm_plane_to_atmel_hlcdc_plane(p);
-       struct atmel_hlcdc_plane_update_req req;
-       int ret = 0;
-
-       memset(&req, 0, sizeof(req));
-       req.crtc_x = crtc_x;
-       req.crtc_y = crtc_y;
-       req.crtc_w = crtc_w;
-       req.crtc_h = crtc_h;
-       req.src_x = src_x;
-       req.src_y = src_y;
-       req.src_w = src_w;
-       req.src_h = src_h;
-       req.fb = fb;
-
-       ret = atmel_hlcdc_plane_prepare_update_req(&plane->base, &req, mode);
-       if (ret)
-               return ret;
 
-       if (!req.crtc_h || !req.crtc_w)
-               return atmel_hlcdc_layer_disable(&plane->layer);
-
-       return atmel_hlcdc_plane_apply_update_req(&plane->base, &req);
+       return atmel_hlcdc_layer_update_start(&plane->layer);
 }
 
-static int atmel_hlcdc_plane_update(struct drm_plane *p,
-                                   struct drm_crtc *crtc,
-                                   struct drm_framebuffer *fb,
-                                   int crtc_x, int crtc_y,
-                                   unsigned int crtc_w, unsigned int crtc_h,
-                                   uint32_t src_x, uint32_t src_y,
-                                   uint32_t src_w, uint32_t src_h)
+static void atmel_hlcdc_plane_atomic_update(struct drm_plane *p,
+                                           struct drm_plane_state *old_s)
 {
-       return atmel_hlcdc_plane_update_with_mode(p, crtc, fb, crtc_x, crtc_y,
-                                                 crtc_w, crtc_h, src_x, src_y,
-                                                 src_w, src_h, &crtc->hwmode);
+       struct atmel_hlcdc_plane *plane = drm_plane_to_atmel_hlcdc_plane(p);
+       struct atmel_hlcdc_plane_state *state =
+                       drm_plane_state_to_atmel_hlcdc_plane_state(p->state);
+
+       if (!p->state->crtc || !p->state->fb)
+               return;
+
+       atmel_hlcdc_plane_update_pos_and_size(plane, state);
+       atmel_hlcdc_plane_update_general_settings(plane, state);
+       atmel_hlcdc_plane_update_format(plane, state);
+       atmel_hlcdc_plane_update_buffers(plane, state);
+
+       atmel_hlcdc_layer_update_commit(&plane->layer);
 }
 
-static int atmel_hlcdc_plane_disable(struct drm_plane *p)
+static void atmel_hlcdc_plane_atomic_disable(struct drm_plane *p,
+                                            struct drm_plane_state *old_state)
 {
        struct atmel_hlcdc_plane *plane = drm_plane_to_atmel_hlcdc_plane(p);
 
-       return atmel_hlcdc_layer_disable(&plane->layer);
+       atmel_hlcdc_layer_disable(&plane->layer);
 }
 
 static void atmel_hlcdc_plane_destroy(struct drm_plane *p)
@@ -635,38 +653,36 @@ static void atmel_hlcdc_plane_destroy(struct drm_plane *p)
        devm_kfree(p->dev->dev, plane);
 }
 
-static int atmel_hlcdc_plane_set_alpha(struct atmel_hlcdc_plane *plane,
-                                      u8 alpha)
+static int atmel_hlcdc_plane_atomic_set_property(struct drm_plane *p,
+                                                struct drm_plane_state *s,
+                                                struct drm_property *property,
+                                                uint64_t val)
 {
-       atmel_hlcdc_layer_update_start(&plane->layer);
-       atmel_hlcdc_layer_update_cfg(&plane->layer,
-                                    plane->layer.desc->layout.general_config,
-                                    ATMEL_HLCDC_LAYER_GA_MASK,
-                                    alpha << ATMEL_HLCDC_LAYER_GA_SHIFT);
-       atmel_hlcdc_layer_update_commit(&plane->layer);
-
-       return 0;
-}
+       struct atmel_hlcdc_plane *plane = drm_plane_to_atmel_hlcdc_plane(p);
+       struct atmel_hlcdc_plane_properties *props = plane->properties;
+       struct atmel_hlcdc_plane_state *state =
+                       drm_plane_state_to_atmel_hlcdc_plane_state(s);
 
-static int atmel_hlcdc_plane_set_rotation(struct atmel_hlcdc_plane *plane,
-                                         unsigned int rotation)
-{
-       plane->rotation = rotation;
+       if (property == props->alpha)
+               state->alpha = val;
+       else
+               return -EINVAL;
 
        return 0;
 }
 
-static int atmel_hlcdc_plane_set_property(struct drm_plane *p,
-                                         struct drm_property *property,
-                                         uint64_t value)
+static int atmel_hlcdc_plane_atomic_get_property(struct drm_plane *p,
+                                       const struct drm_plane_state *s,
+                                       struct drm_property *property,
+                                       uint64_t *val)
 {
        struct atmel_hlcdc_plane *plane = drm_plane_to_atmel_hlcdc_plane(p);
        struct atmel_hlcdc_plane_properties *props = plane->properties;
+       const struct atmel_hlcdc_plane_state *state =
+               container_of(s, const struct atmel_hlcdc_plane_state, base);
 
        if (property == props->alpha)
-               atmel_hlcdc_plane_set_alpha(plane, value);
-       else if (property == props->rotation)
-               atmel_hlcdc_plane_set_rotation(plane, value);
+               *val = state->alpha;
        else
                return -EINVAL;
 
@@ -694,8 +710,8 @@ static void atmel_hlcdc_plane_init_properties(struct atmel_hlcdc_plane *plane,
 
        if (desc->layout.xstride && desc->layout.pstride)
                drm_object_attach_property(&plane->base.base,
-                                          props->rotation,
-                                          BIT(DRM_ROTATE_0));
+                               plane->base.dev->mode_config.rotation_property,
+                               BIT(DRM_ROTATE_0));
 
        if (desc->layout.csc) {
                /*
@@ -717,11 +733,74 @@ static void atmel_hlcdc_plane_init_properties(struct atmel_hlcdc_plane *plane,
        }
 }
 
+static struct drm_plane_helper_funcs atmel_hlcdc_layer_plane_helper_funcs = {
+       .prepare_fb = atmel_hlcdc_plane_prepare_fb,
+       .atomic_check = atmel_hlcdc_plane_atomic_check,
+       .atomic_update = atmel_hlcdc_plane_atomic_update,
+       .atomic_disable = atmel_hlcdc_plane_atomic_disable,
+};
+
+static void atmel_hlcdc_plane_reset(struct drm_plane *p)
+{
+       struct atmel_hlcdc_plane_state *state;
+
+       if (p->state) {
+               state = drm_plane_state_to_atmel_hlcdc_plane_state(p->state);
+
+               if (state->base.fb)
+                       drm_framebuffer_unreference(state->base.fb);
+
+               kfree(state);
+               p->state = NULL;
+       }
+
+       state = kzalloc(sizeof(*state), GFP_KERNEL);
+       if (state) {
+               state->alpha = 255;
+               p->state = &state->base;
+               p->state->plane = p;
+       }
+}
+
+static struct drm_plane_state *
+atmel_hlcdc_plane_atomic_duplicate_state(struct drm_plane *p)
+{
+       struct atmel_hlcdc_plane_state *state =
+                       drm_plane_state_to_atmel_hlcdc_plane_state(p->state);
+       struct atmel_hlcdc_plane_state *copy;
+
+       copy = kmemdup(state, sizeof(*state), GFP_KERNEL);
+       if (!copy)
+               return NULL;
+
+       if (copy->base.fb)
+               drm_framebuffer_reference(copy->base.fb);
+
+       return &copy->base;
+}
+
+static void atmel_hlcdc_plane_atomic_destroy_state(struct drm_plane *plane,
+                                                  struct drm_plane_state *s)
+{
+       struct atmel_hlcdc_plane_state *state =
+                       drm_plane_state_to_atmel_hlcdc_plane_state(s);
+
+       if (s->fb)
+               drm_framebuffer_unreference(s->fb);
+
+       kfree(state);
+}
+
 static struct drm_plane_funcs layer_plane_funcs = {
-       .update_plane = atmel_hlcdc_plane_update,
-       .disable_plane = atmel_hlcdc_plane_disable,
-       .set_property = atmel_hlcdc_plane_set_property,
+       .update_plane = drm_atomic_helper_update_plane,
+       .disable_plane = drm_atomic_helper_disable_plane,
+       .set_property = drm_atomic_helper_plane_set_property,
        .destroy = atmel_hlcdc_plane_destroy,
+       .reset = atmel_hlcdc_plane_reset,
+       .atomic_duplicate_state = atmel_hlcdc_plane_atomic_duplicate_state,
+       .atomic_destroy_state = atmel_hlcdc_plane_atomic_destroy_state,
+       .atomic_set_property = atmel_hlcdc_plane_atomic_set_property,
+       .atomic_get_property = atmel_hlcdc_plane_atomic_get_property,
 };
 
 static struct atmel_hlcdc_plane *
@@ -755,6 +834,9 @@ atmel_hlcdc_plane_create(struct drm_device *dev,
        if (ret)
                return ERR_PTR(ret);
 
+       drm_plane_helper_add(&plane->base,
+                            &atmel_hlcdc_layer_plane_helper_funcs);
+
        /* Set default property values*/
        atmel_hlcdc_plane_init_properties(plane, desc, props);
 
@@ -774,12 +856,13 @@ atmel_hlcdc_plane_create_properties(struct drm_device *dev)
        if (!props->alpha)
                return ERR_PTR(-ENOMEM);
 
-       props->rotation = drm_mode_create_rotation_property(dev,
-                                               BIT(DRM_ROTATE_0) |
-                                               BIT(DRM_ROTATE_90) |
-                                               BIT(DRM_ROTATE_180) |
-                                               BIT(DRM_ROTATE_270));
-       if (!props->rotation)
+       dev->mode_config.rotation_property =
+                       drm_mode_create_rotation_property(dev,
+                                                         BIT(DRM_ROTATE_0) |
+                                                         BIT(DRM_ROTATE_90) |
+                                                         BIT(DRM_ROTATE_180) |
+                                                         BIT(DRM_ROTATE_270));
+       if (!dev->mode_config.rotation_property)
                return ERR_PTR(-ENOMEM);
 
        return props;