video: fbdev: remove unused sh_mobile_meram driver
authorBartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Mon, 14 May 2018 13:47:30 +0000 (15:47 +0200)
committerBartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Mon, 14 May 2018 13:47:30 +0000 (15:47 +0200)
Since commit a521422ea4ae  ("ARM: shmobile: mackerel: Remove Legacy C
board code") MERAM functionality is unused. Remove it.

Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Daniel Vetter <daniel@ffwll.ch>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
drivers/video/fbdev/Kconfig
drivers/video/fbdev/Makefile
drivers/video/fbdev/sh_mobile_meram.c [deleted file]
include/video/sh_mobile_meram.h [deleted file]

index 79634a13407417084cd1f67ab6534e0e5fffa3e4..c8c3e9ffd47d4d9777c5f7374820e5300b533f1f 100644 (file)
@@ -2312,18 +2312,6 @@ source "drivers/video/fbdev/omap/Kconfig"
 source "drivers/video/fbdev/omap2/Kconfig"
 source "drivers/video/fbdev/mmp/Kconfig"
 
-config FB_SH_MOBILE_MERAM
-       tristate "SuperH Mobile MERAM read ahead support"
-       depends on ARCH_SHMOBILE
-       select GENERIC_ALLOCATOR
-       ---help---
-         Enable MERAM support for the SuperH controller.
-
-         This will allow for caching of the framebuffer to provide more
-         reliable access under heavy main memory bus traffic situations.
-         Up to 4 memory channels can be configured, allowing 4 RGB or
-         2 YCbCr framebuffers to be configured.
-
 config FB_SSD1307
        tristate "Solomon SSD1307 framebuffer support"
        depends on FB && I2C
index 317a6fd0e54e6e7e03955be16da0f7716791894f..13c900320c2cc375593d02bd0aa99381d03a6f81 100644 (file)
@@ -113,7 +113,6 @@ obj-$(CONFIG_FB_SM501)            += sm501fb.o
 obj-$(CONFIG_FB_UDL)             += udlfb.o
 obj-$(CONFIG_FB_SMSCUFX)         += smscufx.o
 obj-$(CONFIG_FB_XILINX)           += xilinxfb.o
-obj-$(CONFIG_FB_SH_MOBILE_MERAM)  += sh_mobile_meram.o
 obj-$(CONFIG_FB_SH_MOBILE_LCDC)          += sh_mobile_lcdcfb.o
 obj-$(CONFIG_FB_OMAP)             += omap/
 obj-y                             += omap2/
diff --git a/drivers/video/fbdev/sh_mobile_meram.c b/drivers/video/fbdev/sh_mobile_meram.c
deleted file mode 100644 (file)
index da9df12..0000000
+++ /dev/null
@@ -1,754 +0,0 @@
-/*
- * SuperH Mobile MERAM Driver for SuperH Mobile LCDC Driver
- *
- * Copyright (c) 2011  Damian Hobson-Garcia <dhobsong@igel.co.jp>
- *                      Takanari Hayama <taki@igel.co.jp>
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-
-#include <linux/device.h>
-#include <linux/err.h>
-#include <linux/export.h>
-#include <linux/genalloc.h>
-#include <linux/io.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/platform_device.h>
-#include <linux/pm_runtime.h>
-#include <linux/slab.h>
-
-#include <video/sh_mobile_meram.h>
-
-/* -----------------------------------------------------------------------------
- * MERAM registers
- */
-
-#define MEVCR1                 0x4
-#define MEVCR1_RST             (1 << 31)
-#define MEVCR1_WD              (1 << 30)
-#define MEVCR1_AMD1            (1 << 29)
-#define MEVCR1_AMD0            (1 << 28)
-#define MEQSEL1                        0x40
-#define MEQSEL2                        0x44
-
-#define MExxCTL                        0x400
-#define MExxCTL_BV             (1 << 31)
-#define MExxCTL_BSZ_SHIFT      28
-#define MExxCTL_MSAR_MASK      (0x7ff << MExxCTL_MSAR_SHIFT)
-#define MExxCTL_MSAR_SHIFT     16
-#define MExxCTL_NXT_MASK       (0x1f << MExxCTL_NXT_SHIFT)
-#define MExxCTL_NXT_SHIFT      11
-#define MExxCTL_WD1            (1 << 10)
-#define MExxCTL_WD0            (1 << 9)
-#define MExxCTL_WS             (1 << 8)
-#define MExxCTL_CB             (1 << 7)
-#define MExxCTL_WBF            (1 << 6)
-#define MExxCTL_WF             (1 << 5)
-#define MExxCTL_RF             (1 << 4)
-#define MExxCTL_CM             (1 << 3)
-#define MExxCTL_MD_READ                (1 << 0)
-#define MExxCTL_MD_WRITE       (2 << 0)
-#define MExxCTL_MD_ICB_WB      (3 << 0)
-#define MExxCTL_MD_ICB         (4 << 0)
-#define MExxCTL_MD_FB          (7 << 0)
-#define MExxCTL_MD_MASK                (7 << 0)
-#define MExxBSIZE              0x404
-#define MExxBSIZE_RCNT_SHIFT   28
-#define MExxBSIZE_YSZM1_SHIFT  16
-#define MExxBSIZE_XSZM1_SHIFT  0
-#define MExxMNCF               0x408
-#define MExxMNCF_KWBNM_SHIFT   28
-#define MExxMNCF_KRBNM_SHIFT   24
-#define MExxMNCF_BNM_SHIFT     16
-#define MExxMNCF_XBV           (1 << 15)
-#define MExxMNCF_CPL_YCBCR444  (1 << 12)
-#define MExxMNCF_CPL_YCBCR420  (2 << 12)
-#define MExxMNCF_CPL_YCBCR422  (3 << 12)
-#define MExxMNCF_CPL_MSK       (3 << 12)
-#define MExxMNCF_BL            (1 << 2)
-#define MExxMNCF_LNM_SHIFT     0
-#define MExxSARA               0x410
-#define MExxSARB               0x414
-#define MExxSBSIZE             0x418
-#define MExxSBSIZE_HDV         (1 << 31)
-#define MExxSBSIZE_HSZ16       (0 << 28)
-#define MExxSBSIZE_HSZ32       (1 << 28)
-#define MExxSBSIZE_HSZ64       (2 << 28)
-#define MExxSBSIZE_HSZ128      (3 << 28)
-#define MExxSBSIZE_SBSIZZ_SHIFT        0
-
-#define MERAM_MExxCTL_VAL(next, addr)  \
-       ((((next) << MExxCTL_NXT_SHIFT) & MExxCTL_NXT_MASK) | \
-        (((addr) << MExxCTL_MSAR_SHIFT) & MExxCTL_MSAR_MASK))
-#define        MERAM_MExxBSIZE_VAL(rcnt, yszm1, xszm1) \
-       (((rcnt) << MExxBSIZE_RCNT_SHIFT) | \
-        ((yszm1) << MExxBSIZE_YSZM1_SHIFT) | \
-        ((xszm1) << MExxBSIZE_XSZM1_SHIFT))
-
-static const unsigned long common_regs[] = {
-       MEVCR1,
-       MEQSEL1,
-       MEQSEL2,
-};
-#define MERAM_REGS_SIZE ARRAY_SIZE(common_regs)
-
-static const unsigned long icb_regs[] = {
-       MExxCTL,
-       MExxBSIZE,
-       MExxMNCF,
-       MExxSARA,
-       MExxSARB,
-       MExxSBSIZE,
-};
-#define ICB_REGS_SIZE ARRAY_SIZE(icb_regs)
-
-/*
- * sh_mobile_meram_icb - MERAM ICB information
- * @regs: Registers cache
- * @index: ICB index
- * @offset: MERAM block offset
- * @size: MERAM block size in KiB
- * @cache_unit: Bytes to cache per ICB
- * @pixelformat: Video pixel format of the data stored in the ICB
- * @current_reg: Which of Start Address Register A (0) or B (1) is in use
- */
-struct sh_mobile_meram_icb {
-       unsigned long regs[ICB_REGS_SIZE];
-       unsigned int index;
-       unsigned long offset;
-       unsigned int size;
-
-       unsigned int cache_unit;
-       unsigned int pixelformat;
-       unsigned int current_reg;
-};
-
-#define MERAM_ICB_NUM                  32
-
-struct sh_mobile_meram_fb_plane {
-       struct sh_mobile_meram_icb *marker;
-       struct sh_mobile_meram_icb *cache;
-};
-
-struct sh_mobile_meram_fb_cache {
-       unsigned int nplanes;
-       struct sh_mobile_meram_fb_plane planes[2];
-};
-
-/*
- * sh_mobile_meram_priv - MERAM device
- * @base: Registers base address
- * @meram: MERAM physical address
- * @regs: Registers cache
- * @lock: Protects used_icb and icbs
- * @used_icb: Bitmask of used ICBs
- * @icbs: ICBs
- * @pool: Allocation pool to manage the MERAM
- */
-struct sh_mobile_meram_priv {
-       void __iomem *base;
-       unsigned long meram;
-       unsigned long regs[MERAM_REGS_SIZE];
-
-       struct mutex lock;
-       unsigned long used_icb;
-       struct sh_mobile_meram_icb icbs[MERAM_ICB_NUM];
-
-       struct gen_pool *pool;
-};
-
-/* settings */
-#define MERAM_GRANULARITY              1024
-#define MERAM_SEC_LINE                 15
-#define MERAM_LINE_WIDTH               2048
-
-/* -----------------------------------------------------------------------------
- * Registers access
- */
-
-#define MERAM_ICB_OFFSET(base, idx, off)       ((base) + (off) + (idx) * 0x20)
-
-static inline void meram_write_icb(void __iomem *base, unsigned int idx,
-                                  unsigned int off, unsigned long val)
-{
-       iowrite32(val, MERAM_ICB_OFFSET(base, idx, off));
-}
-
-static inline unsigned long meram_read_icb(void __iomem *base, unsigned int idx,
-                                          unsigned int off)
-{
-       return ioread32(MERAM_ICB_OFFSET(base, idx, off));
-}
-
-static inline void meram_write_reg(void __iomem *base, unsigned int off,
-                                  unsigned long val)
-{
-       iowrite32(val, base + off);
-}
-
-static inline unsigned long meram_read_reg(void __iomem *base, unsigned int off)
-{
-       return ioread32(base + off);
-}
-
-/* -----------------------------------------------------------------------------
- * MERAM allocation and free
- */
-
-static unsigned long meram_alloc(struct sh_mobile_meram_priv *priv, size_t size)
-{
-       return gen_pool_alloc(priv->pool, size);
-}
-
-static void meram_free(struct sh_mobile_meram_priv *priv, unsigned long mem,
-                      size_t size)
-{
-       gen_pool_free(priv->pool, mem, size);
-}
-
-/* -----------------------------------------------------------------------------
- * LCDC cache planes allocation, init, cleanup and free
- */
-
-/* Allocate ICBs and MERAM for a plane. */
-static int meram_plane_alloc(struct sh_mobile_meram_priv *priv,
-                            struct sh_mobile_meram_fb_plane *plane,
-                            size_t size)
-{
-       unsigned long mem;
-       unsigned long idx;
-
-       idx = find_first_zero_bit(&priv->used_icb, 28);
-       if (idx == 28)
-               return -ENOMEM;
-       plane->cache = &priv->icbs[idx];
-
-       idx = find_next_zero_bit(&priv->used_icb, 32, 28);
-       if (idx == 32)
-               return -ENOMEM;
-       plane->marker = &priv->icbs[idx];
-
-       mem = meram_alloc(priv, size * 1024);
-       if (mem == 0)
-               return -ENOMEM;
-
-       __set_bit(plane->marker->index, &priv->used_icb);
-       __set_bit(plane->cache->index, &priv->used_icb);
-
-       plane->marker->offset = mem - priv->meram;
-       plane->marker->size = size;
-
-       return 0;
-}
-
-/* Free ICBs and MERAM for a plane. */
-static void meram_plane_free(struct sh_mobile_meram_priv *priv,
-                            struct sh_mobile_meram_fb_plane *plane)
-{
-       meram_free(priv, priv->meram + plane->marker->offset,
-                  plane->marker->size * 1024);
-
-       __clear_bit(plane->marker->index, &priv->used_icb);
-       __clear_bit(plane->cache->index, &priv->used_icb);
-}
-
-/* Is this a YCbCr(NV12, NV16 or NV24) colorspace? */
-static int is_nvcolor(int cspace)
-{
-       if (cspace == SH_MOBILE_MERAM_PF_NV ||
-           cspace == SH_MOBILE_MERAM_PF_NV24)
-               return 1;
-       return 0;
-}
-
-/* Set the next address to fetch. */
-static void meram_set_next_addr(struct sh_mobile_meram_priv *priv,
-                               struct sh_mobile_meram_fb_cache *cache,
-                               unsigned long base_addr_y,
-                               unsigned long base_addr_c)
-{
-       struct sh_mobile_meram_icb *icb = cache->planes[0].marker;
-       unsigned long target;
-
-       icb->current_reg ^= 1;
-       target = icb->current_reg ? MExxSARB : MExxSARA;
-
-       /* set the next address to fetch */
-       meram_write_icb(priv->base, cache->planes[0].cache->index, target,
-                       base_addr_y);
-       meram_write_icb(priv->base, cache->planes[0].marker->index, target,
-                       base_addr_y + cache->planes[0].marker->cache_unit);
-
-       if (cache->nplanes == 2) {
-               meram_write_icb(priv->base, cache->planes[1].cache->index,
-                               target, base_addr_c);
-               meram_write_icb(priv->base, cache->planes[1].marker->index,
-                               target, base_addr_c +
-                               cache->planes[1].marker->cache_unit);
-       }
-}
-
-/* Get the next ICB address. */
-static void
-meram_get_next_icb_addr(struct sh_mobile_meram_info *pdata,
-                       struct sh_mobile_meram_fb_cache *cache,
-                       unsigned long *icb_addr_y, unsigned long *icb_addr_c)
-{
-       struct sh_mobile_meram_icb *icb = cache->planes[0].marker;
-       unsigned long icb_offset;
-
-       if (pdata->addr_mode == SH_MOBILE_MERAM_MODE0)
-               icb_offset = 0x80000000 | (icb->current_reg << 29);
-       else
-               icb_offset = 0xc0000000 | (icb->current_reg << 23);
-
-       *icb_addr_y = icb_offset | (cache->planes[0].marker->index << 24);
-       if (cache->nplanes == 2)
-               *icb_addr_c = icb_offset
-                           | (cache->planes[1].marker->index << 24);
-}
-
-#define MERAM_CALC_BYTECOUNT(x, y) \
-       (((x) * (y) + (MERAM_LINE_WIDTH - 1)) & ~(MERAM_LINE_WIDTH - 1))
-
-/* Initialize MERAM. */
-static int meram_plane_init(struct sh_mobile_meram_priv *priv,
-                           struct sh_mobile_meram_fb_plane *plane,
-                           unsigned int xres, unsigned int yres,
-                           unsigned int *out_pitch)
-{
-       struct sh_mobile_meram_icb *marker = plane->marker;
-       unsigned long total_byte_count = MERAM_CALC_BYTECOUNT(xres, yres);
-       unsigned long bnm;
-       unsigned int lcdc_pitch;
-       unsigned int xpitch;
-       unsigned int line_cnt;
-       unsigned int save_lines;
-
-       /* adjust pitch to 1024, 2048, 4096 or 8192 */
-       lcdc_pitch = (xres - 1) | 1023;
-       lcdc_pitch = lcdc_pitch | (lcdc_pitch >> 1);
-       lcdc_pitch = lcdc_pitch | (lcdc_pitch >> 2);
-       lcdc_pitch += 1;
-
-       /* derive settings */
-       if (lcdc_pitch == 8192 && yres >= 1024) {
-               lcdc_pitch = xpitch = MERAM_LINE_WIDTH;
-               line_cnt = total_byte_count >> 11;
-               *out_pitch = xres;
-               save_lines = plane->marker->size / 16 / MERAM_SEC_LINE;
-               save_lines *= MERAM_SEC_LINE;
-       } else {
-               xpitch = xres;
-               line_cnt = yres;
-               *out_pitch = lcdc_pitch;
-               save_lines = plane->marker->size / (lcdc_pitch >> 10) / 2;
-               save_lines &= 0xff;
-       }
-       bnm = (save_lines - 1) << 16;
-
-       /* TODO: we better to check if we have enough MERAM buffer size */
-
-       /* set up ICB */
-       meram_write_icb(priv->base, plane->cache->index,  MExxBSIZE,
-                       MERAM_MExxBSIZE_VAL(0x0, line_cnt - 1, xpitch - 1));
-       meram_write_icb(priv->base, plane->marker->index, MExxBSIZE,
-                       MERAM_MExxBSIZE_VAL(0xf, line_cnt - 1, xpitch - 1));
-
-       meram_write_icb(priv->base, plane->cache->index,  MExxMNCF, bnm);
-       meram_write_icb(priv->base, plane->marker->index, MExxMNCF, bnm);
-
-       meram_write_icb(priv->base, plane->cache->index,  MExxSBSIZE, xpitch);
-       meram_write_icb(priv->base, plane->marker->index, MExxSBSIZE, xpitch);
-
-       /* save a cache unit size */
-       plane->cache->cache_unit = xres * save_lines;
-       plane->marker->cache_unit = xres * save_lines;
-
-       /*
-        * Set MERAM for framebuffer
-        *
-        * we also chain the cache_icb and the marker_icb.
-        * we also split the allocated MERAM buffer between two ICBs.
-        */
-       meram_write_icb(priv->base, plane->cache->index, MExxCTL,
-                       MERAM_MExxCTL_VAL(plane->marker->index, marker->offset)
-                       | MExxCTL_WD1 | MExxCTL_WD0 | MExxCTL_WS | MExxCTL_CM |
-                       MExxCTL_MD_FB);
-       meram_write_icb(priv->base, plane->marker->index, MExxCTL,
-                       MERAM_MExxCTL_VAL(plane->cache->index, marker->offset +
-                                         plane->marker->size / 2) |
-                       MExxCTL_WD1 | MExxCTL_WD0 | MExxCTL_WS | MExxCTL_CM |
-                       MExxCTL_MD_FB);
-
-       return 0;
-}
-
-static void meram_plane_cleanup(struct sh_mobile_meram_priv *priv,
-                               struct sh_mobile_meram_fb_plane *plane)
-{
-       /* disable ICB */
-       meram_write_icb(priv->base, plane->cache->index,  MExxCTL,
-                       MExxCTL_WBF | MExxCTL_WF | MExxCTL_RF);
-       meram_write_icb(priv->base, plane->marker->index, MExxCTL,
-                       MExxCTL_WBF | MExxCTL_WF | MExxCTL_RF);
-
-       plane->cache->cache_unit = 0;
-       plane->marker->cache_unit = 0;
-}
-
-/* -----------------------------------------------------------------------------
- * MERAM operations
- */
-
-unsigned long sh_mobile_meram_alloc(struct sh_mobile_meram_info *pdata,
-                                   size_t size)
-{
-       struct sh_mobile_meram_priv *priv = pdata->priv;
-
-       return meram_alloc(priv, size);
-}
-EXPORT_SYMBOL_GPL(sh_mobile_meram_alloc);
-
-void sh_mobile_meram_free(struct sh_mobile_meram_info *pdata, unsigned long mem,
-                         size_t size)
-{
-       struct sh_mobile_meram_priv *priv = pdata->priv;
-
-       meram_free(priv, mem, size);
-}
-EXPORT_SYMBOL_GPL(sh_mobile_meram_free);
-
-/* Allocate memory for the ICBs and mark them as used. */
-static struct sh_mobile_meram_fb_cache *
-meram_cache_alloc(struct sh_mobile_meram_priv *priv,
-                 const struct sh_mobile_meram_cfg *cfg,
-                 int pixelformat)
-{
-       unsigned int nplanes = is_nvcolor(pixelformat) ? 2 : 1;
-       struct sh_mobile_meram_fb_cache *cache;
-       int ret;
-
-       cache = kzalloc(sizeof(*cache), GFP_KERNEL);
-       if (cache == NULL)
-               return ERR_PTR(-ENOMEM);
-
-       cache->nplanes = nplanes;
-
-       ret = meram_plane_alloc(priv, &cache->planes[0],
-                               cfg->icb[0].meram_size);
-       if (ret < 0)
-               goto error;
-
-       cache->planes[0].marker->current_reg = 1;
-       cache->planes[0].marker->pixelformat = pixelformat;
-
-       if (cache->nplanes == 1)
-               return cache;
-
-       ret = meram_plane_alloc(priv, &cache->planes[1],
-                               cfg->icb[1].meram_size);
-       if (ret < 0) {
-               meram_plane_free(priv, &cache->planes[0]);
-               goto error;
-       }
-
-       return cache;
-
-error:
-       kfree(cache);
-       return ERR_PTR(-ENOMEM);
-}
-
-void *sh_mobile_meram_cache_alloc(struct sh_mobile_meram_info *pdata,
-                                 const struct sh_mobile_meram_cfg *cfg,
-                                 unsigned int xres, unsigned int yres,
-                                 unsigned int pixelformat, unsigned int *pitch)
-{
-       struct sh_mobile_meram_fb_cache *cache;
-       struct sh_mobile_meram_priv *priv = pdata->priv;
-       struct platform_device *pdev = pdata->pdev;
-       unsigned int nplanes = is_nvcolor(pixelformat) ? 2 : 1;
-       unsigned int out_pitch;
-
-       if (priv == NULL)
-               return ERR_PTR(-ENODEV);
-
-       if (pixelformat != SH_MOBILE_MERAM_PF_NV &&
-           pixelformat != SH_MOBILE_MERAM_PF_NV24 &&
-           pixelformat != SH_MOBILE_MERAM_PF_RGB)
-               return ERR_PTR(-EINVAL);
-
-       dev_dbg(&pdev->dev, "registering %dx%d (%s)", xres, yres,
-               !pixelformat ? "yuv" : "rgb");
-
-       /* we can't handle wider than 8192px */
-       if (xres > 8192) {
-               dev_err(&pdev->dev, "width exceeding the limit (> 8192).");
-               return ERR_PTR(-EINVAL);
-       }
-
-       if (cfg->icb[0].meram_size == 0)
-               return ERR_PTR(-EINVAL);
-
-       if (nplanes == 2 && cfg->icb[1].meram_size == 0)
-               return ERR_PTR(-EINVAL);
-
-       mutex_lock(&priv->lock);
-
-       /* We now register the ICBs and allocate the MERAM regions. */
-       cache = meram_cache_alloc(priv, cfg, pixelformat);
-       if (IS_ERR(cache)) {
-               dev_err(&pdev->dev, "MERAM allocation failed (%ld).",
-                       PTR_ERR(cache));
-               goto err;
-       }
-
-       /* initialize MERAM */
-       meram_plane_init(priv, &cache->planes[0], xres, yres, &out_pitch);
-       *pitch = out_pitch;
-       if (pixelformat == SH_MOBILE_MERAM_PF_NV)
-               meram_plane_init(priv, &cache->planes[1],
-                                xres, (yres + 1) / 2, &out_pitch);
-       else if (pixelformat == SH_MOBILE_MERAM_PF_NV24)
-               meram_plane_init(priv, &cache->planes[1],
-                                2 * xres, (yres + 1) / 2, &out_pitch);
-
-err:
-       mutex_unlock(&priv->lock);
-       return cache;
-}
-EXPORT_SYMBOL_GPL(sh_mobile_meram_cache_alloc);
-
-void
-sh_mobile_meram_cache_free(struct sh_mobile_meram_info *pdata, void *data)
-{
-       struct sh_mobile_meram_fb_cache *cache = data;
-       struct sh_mobile_meram_priv *priv = pdata->priv;
-
-       mutex_lock(&priv->lock);
-
-       /* Cleanup and free. */
-       meram_plane_cleanup(priv, &cache->planes[0]);
-       meram_plane_free(priv, &cache->planes[0]);
-
-       if (cache->nplanes == 2) {
-               meram_plane_cleanup(priv, &cache->planes[1]);
-               meram_plane_free(priv, &cache->planes[1]);
-       }
-
-       kfree(cache);
-
-       mutex_unlock(&priv->lock);
-}
-EXPORT_SYMBOL_GPL(sh_mobile_meram_cache_free);
-
-void
-sh_mobile_meram_cache_update(struct sh_mobile_meram_info *pdata, void *data,
-                            unsigned long base_addr_y,
-                            unsigned long base_addr_c,
-                            unsigned long *icb_addr_y,
-                            unsigned long *icb_addr_c)
-{
-       struct sh_mobile_meram_fb_cache *cache = data;
-       struct sh_mobile_meram_priv *priv = pdata->priv;
-
-       mutex_lock(&priv->lock);
-
-       meram_set_next_addr(priv, cache, base_addr_y, base_addr_c);
-       meram_get_next_icb_addr(pdata, cache, icb_addr_y, icb_addr_c);
-
-       mutex_unlock(&priv->lock);
-}
-EXPORT_SYMBOL_GPL(sh_mobile_meram_cache_update);
-
-/* -----------------------------------------------------------------------------
- * Power management
- */
-
-#ifdef CONFIG_PM
-static int sh_mobile_meram_suspend(struct device *dev)
-{
-       struct sh_mobile_meram_priv *priv = dev_get_drvdata(dev);
-       unsigned int i, j;
-
-       for (i = 0; i < MERAM_REGS_SIZE; i++)
-               priv->regs[i] = meram_read_reg(priv->base, common_regs[i]);
-
-       for (i = 0; i < 32; i++) {
-               if (!test_bit(i, &priv->used_icb))
-                       continue;
-               for (j = 0; j < ICB_REGS_SIZE; j++) {
-                       priv->icbs[i].regs[j] =
-                               meram_read_icb(priv->base, i, icb_regs[j]);
-                       /* Reset ICB on resume */
-                       if (icb_regs[j] == MExxCTL)
-                               priv->icbs[i].regs[j] |=
-                                       MExxCTL_WBF | MExxCTL_WF | MExxCTL_RF;
-               }
-       }
-       return 0;
-}
-
-static int sh_mobile_meram_resume(struct device *dev)
-{
-       struct sh_mobile_meram_priv *priv = dev_get_drvdata(dev);
-       unsigned int i, j;
-
-       for (i = 0; i < 32; i++) {
-               if (!test_bit(i, &priv->used_icb))
-                       continue;
-               for (j = 0; j < ICB_REGS_SIZE; j++)
-                       meram_write_icb(priv->base, i, icb_regs[j],
-                                       priv->icbs[i].regs[j]);
-       }
-
-       for (i = 0; i < MERAM_REGS_SIZE; i++)
-               meram_write_reg(priv->base, common_regs[i], priv->regs[i]);
-       return 0;
-}
-#endif /* CONFIG_PM */
-
-static UNIVERSAL_DEV_PM_OPS(sh_mobile_meram_dev_pm_ops,
-                           sh_mobile_meram_suspend,
-                           sh_mobile_meram_resume, NULL);
-
-/* -----------------------------------------------------------------------------
- * Probe/remove and driver init/exit
- */
-
-static int sh_mobile_meram_probe(struct platform_device *pdev)
-{
-       struct sh_mobile_meram_priv *priv;
-       struct sh_mobile_meram_info *pdata = pdev->dev.platform_data;
-       struct resource *regs;
-       struct resource *meram;
-       unsigned int i;
-       int error;
-
-       if (!pdata) {
-               dev_err(&pdev->dev, "no platform data defined\n");
-               return -EINVAL;
-       }
-
-       regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-       meram = platform_get_resource(pdev, IORESOURCE_MEM, 1);
-       if (regs == NULL || meram == NULL) {
-               dev_err(&pdev->dev, "cannot get platform resources\n");
-               return -ENOENT;
-       }
-
-       priv = kzalloc(sizeof(*priv), GFP_KERNEL);
-       if (!priv)
-               return -ENOMEM;
-
-       /* Initialize private data. */
-       mutex_init(&priv->lock);
-       priv->used_icb = pdata->reserved_icbs;
-
-       for (i = 0; i < MERAM_ICB_NUM; ++i)
-               priv->icbs[i].index = i;
-
-       pdata->priv = priv;
-       pdata->pdev = pdev;
-
-       /* Request memory regions and remap the registers. */
-       if (!request_mem_region(regs->start, resource_size(regs), pdev->name)) {
-               dev_err(&pdev->dev, "MERAM registers region already claimed\n");
-               error = -EBUSY;
-               goto err_req_regs;
-       }
-
-       if (!request_mem_region(meram->start, resource_size(meram),
-                               pdev->name)) {
-               dev_err(&pdev->dev, "MERAM memory region already claimed\n");
-               error = -EBUSY;
-               goto err_req_meram;
-       }
-
-       priv->base = ioremap_nocache(regs->start, resource_size(regs));
-       if (!priv->base) {
-               dev_err(&pdev->dev, "ioremap failed\n");
-               error = -EFAULT;
-               goto err_ioremap;
-       }
-
-       priv->meram = meram->start;
-
-       /* Create and initialize the MERAM memory pool. */
-       priv->pool = gen_pool_create(ilog2(MERAM_GRANULARITY), -1);
-       if (priv->pool == NULL) {
-               error = -ENOMEM;
-               goto err_genpool;
-       }
-
-       error = gen_pool_add(priv->pool, meram->start, resource_size(meram),
-                            -1);
-       if (error < 0)
-               goto err_genpool;
-
-       /* initialize ICB addressing mode */
-       if (pdata->addr_mode == SH_MOBILE_MERAM_MODE1)
-               meram_write_reg(priv->base, MEVCR1, MEVCR1_AMD1);
-
-       platform_set_drvdata(pdev, priv);
-       pm_runtime_enable(&pdev->dev);
-
-       dev_info(&pdev->dev, "sh_mobile_meram initialized.");
-
-       return 0;
-
-err_genpool:
-       if (priv->pool)
-               gen_pool_destroy(priv->pool);
-       iounmap(priv->base);
-err_ioremap:
-       release_mem_region(meram->start, resource_size(meram));
-err_req_meram:
-       release_mem_region(regs->start, resource_size(regs));
-err_req_regs:
-       mutex_destroy(&priv->lock);
-       kfree(priv);
-
-       return error;
-}
-
-
-static int sh_mobile_meram_remove(struct platform_device *pdev)
-{
-       struct sh_mobile_meram_priv *priv = platform_get_drvdata(pdev);
-       struct resource *regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-       struct resource *meram = platform_get_resource(pdev, IORESOURCE_MEM, 1);
-
-       pm_runtime_disable(&pdev->dev);
-
-       gen_pool_destroy(priv->pool);
-
-       iounmap(priv->base);
-       release_mem_region(meram->start, resource_size(meram));
-       release_mem_region(regs->start, resource_size(regs));
-
-       mutex_destroy(&priv->lock);
-
-       kfree(priv);
-
-       return 0;
-}
-
-static struct platform_driver sh_mobile_meram_driver = {
-       .driver = {
-               .name           = "sh_mobile_meram",
-               .pm             = &sh_mobile_meram_dev_pm_ops,
-       },
-       .probe          = sh_mobile_meram_probe,
-       .remove         = sh_mobile_meram_remove,
-};
-
-module_platform_driver(sh_mobile_meram_driver);
-
-MODULE_DESCRIPTION("SuperH Mobile MERAM driver");
-MODULE_AUTHOR("Damian Hobson-Garcia / Takanari Hayama");
-MODULE_LICENSE("GPL v2");
diff --git a/include/video/sh_mobile_meram.h b/include/video/sh_mobile_meram.h
deleted file mode 100644 (file)
index f4efc21..0000000
+++ /dev/null
@@ -1,95 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef __VIDEO_SH_MOBILE_MERAM_H__
-#define __VIDEO_SH_MOBILE_MERAM_H__
-
-/* For sh_mobile_meram_info.addr_mode */
-enum {
-       SH_MOBILE_MERAM_MODE0 = 0,
-       SH_MOBILE_MERAM_MODE1
-};
-
-enum {
-       SH_MOBILE_MERAM_PF_NV = 0,
-       SH_MOBILE_MERAM_PF_RGB,
-       SH_MOBILE_MERAM_PF_NV24
-};
-
-
-struct sh_mobile_meram_priv;
-
-/*
- * struct sh_mobile_meram_info - MERAM platform data
- * @reserved_icbs: Bitmask of reserved ICBs (for instance used through UIO)
- */
-struct sh_mobile_meram_info {
-       int                             addr_mode;
-       u32                             reserved_icbs;
-       struct sh_mobile_meram_priv     *priv;
-       struct platform_device          *pdev;
-};
-
-/* icb config */
-struct sh_mobile_meram_icb_cfg {
-       unsigned int meram_size;        /* MERAM Buffer Size to use */
-};
-
-struct sh_mobile_meram_cfg {
-       struct sh_mobile_meram_icb_cfg icb[2];
-};
-
-#if defined(CONFIG_FB_SH_MOBILE_MERAM) || \
-    defined(CONFIG_FB_SH_MOBILE_MERAM_MODULE)
-unsigned long sh_mobile_meram_alloc(struct sh_mobile_meram_info *meram_dev,
-                                   size_t size);
-void sh_mobile_meram_free(struct sh_mobile_meram_info *meram_dev,
-                         unsigned long mem, size_t size);
-void *sh_mobile_meram_cache_alloc(struct sh_mobile_meram_info *dev,
-                                 const struct sh_mobile_meram_cfg *cfg,
-                                 unsigned int xres, unsigned int yres,
-                                 unsigned int pixelformat,
-                                 unsigned int *pitch);
-void sh_mobile_meram_cache_free(struct sh_mobile_meram_info *dev, void *data);
-void sh_mobile_meram_cache_update(struct sh_mobile_meram_info *dev, void *data,
-                                 unsigned long base_addr_y,
-                                 unsigned long base_addr_c,
-                                 unsigned long *icb_addr_y,
-                                 unsigned long *icb_addr_c);
-#else
-static inline unsigned long
-sh_mobile_meram_alloc(struct sh_mobile_meram_info *meram_dev, size_t size)
-{
-       return 0;
-}
-
-static inline void
-sh_mobile_meram_free(struct sh_mobile_meram_info *meram_dev,
-                    unsigned long mem, size_t size)
-{
-}
-
-static inline void *
-sh_mobile_meram_cache_alloc(struct sh_mobile_meram_info *dev,
-                           const struct sh_mobile_meram_cfg *cfg,
-                           unsigned int xres, unsigned int yres,
-                           unsigned int pixelformat,
-                           unsigned int *pitch)
-{
-       return ERR_PTR(-ENODEV);
-}
-
-static inline void
-sh_mobile_meram_cache_free(struct sh_mobile_meram_info *dev, void *data)
-{
-}
-
-static inline void
-sh_mobile_meram_cache_update(struct sh_mobile_meram_info *dev, void *data,
-                            unsigned long base_addr_y,
-                            unsigned long base_addr_c,
-                            unsigned long *icb_addr_y,
-                            unsigned long *icb_addr_c)
-{
-}
-#endif
-
-#endif /* __VIDEO_SH_MOBILE_MERAM_H__  */