2 * Analog Devices ADV7511 HDMI transmitter driver
4 * Copyright 2012 Analog Devices Inc.
6 * Licensed under the GPL-2.
9 #include <linux/device.h>
10 #include <linux/gpio/consumer.h>
11 #include <linux/module.h>
12 #include <linux/of_device.h>
13 #include <linux/slab.h>
16 #include <drm/drm_atomic.h>
17 #include <drm/drm_atomic_helper.h>
18 #include <drm/drm_edid.h>
22 /* ADI recommended values for proper operation. */
23 static const struct reg_sequence adv7511_fixed_registers[] = {
35 /* -----------------------------------------------------------------------------
39 static const uint8_t adv7511_register_defaults[] = {
40 0x12, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 00 */
41 0x00, 0x00, 0x01, 0x0e, 0xbc, 0x18, 0x01, 0x13,
42 0x25, 0x37, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 10 */
43 0x46, 0x62, 0x04, 0xa8, 0x00, 0x00, 0x1c, 0x84,
44 0x1c, 0xbf, 0x04, 0xa8, 0x1e, 0x70, 0x02, 0x1e, /* 20 */
45 0x00, 0x00, 0x04, 0xa8, 0x08, 0x12, 0x1b, 0xac,
46 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 30 */
47 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0xb0,
48 0x00, 0x50, 0x90, 0x7e, 0x79, 0x70, 0x00, 0x00, /* 40 */
49 0x00, 0xa8, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00,
50 0x00, 0x00, 0x02, 0x0d, 0x00, 0x00, 0x00, 0x00, /* 50 */
51 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
52 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 60 */
53 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
54 0x01, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 70 */
55 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
56 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 80 */
57 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
58 0x00, 0x00, 0x00, 0x00, 0xc0, 0x00, 0x00, 0x00, /* 90 */
59 0x0b, 0x02, 0x00, 0x18, 0x5a, 0x60, 0x00, 0x00,
60 0x00, 0x00, 0x80, 0x80, 0x08, 0x04, 0x00, 0x00, /* a0 */
61 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x40, 0x14,
62 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* b0 */
63 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
64 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* c0 */
65 0x00, 0x03, 0x00, 0x00, 0x02, 0x00, 0x01, 0x04,
66 0x30, 0xff, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00, /* d0 */
67 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x01,
68 0x80, 0x75, 0x00, 0x00, 0x60, 0x00, 0x00, 0x00, /* e0 */
69 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
70 0x00, 0x00, 0x00, 0x00, 0x00, 0x75, 0x11, 0x00, /* f0 */
71 0x00, 0x7c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
74 static bool adv7511_register_volatile(struct device *dev, unsigned int reg)
77 case ADV7511_REG_CHIP_REVISION:
78 case ADV7511_REG_SPDIF_FREQ:
79 case ADV7511_REG_CTS_AUTOMATIC1:
80 case ADV7511_REG_CTS_AUTOMATIC2:
81 case ADV7511_REG_VIC_DETECTED:
82 case ADV7511_REG_VIC_SEND:
83 case ADV7511_REG_AUX_VIC_DETECTED:
84 case ADV7511_REG_STATUS:
85 case ADV7511_REG_GC(1):
86 case ADV7511_REG_INT(0):
87 case ADV7511_REG_INT(1):
88 case ADV7511_REG_PLL_STATUS:
89 case ADV7511_REG_AN(0):
90 case ADV7511_REG_AN(1):
91 case ADV7511_REG_AN(2):
92 case ADV7511_REG_AN(3):
93 case ADV7511_REG_AN(4):
94 case ADV7511_REG_AN(5):
95 case ADV7511_REG_AN(6):
96 case ADV7511_REG_AN(7):
97 case ADV7511_REG_HDCP_STATUS:
98 case ADV7511_REG_BCAPS:
99 case ADV7511_REG_BKSV(0):
100 case ADV7511_REG_BKSV(1):
101 case ADV7511_REG_BKSV(2):
102 case ADV7511_REG_BKSV(3):
103 case ADV7511_REG_BKSV(4):
104 case ADV7511_REG_DDC_STATUS:
105 case ADV7511_REG_EDID_READ_CTRL:
106 case ADV7511_REG_BSTATUS(0):
107 case ADV7511_REG_BSTATUS(1):
108 case ADV7511_REG_CHIP_ID_HIGH:
109 case ADV7511_REG_CHIP_ID_LOW:
116 static const struct regmap_config adv7511_regmap_config = {
120 .max_register = 0xff,
121 .cache_type = REGCACHE_RBTREE,
122 .reg_defaults_raw = adv7511_register_defaults,
123 .num_reg_defaults_raw = ARRAY_SIZE(adv7511_register_defaults),
125 .volatile_reg = adv7511_register_volatile,
128 /* -----------------------------------------------------------------------------
129 * Hardware configuration
132 static void adv7511_set_colormap(struct adv7511 *adv7511, bool enable,
133 const uint16_t *coeff,
134 unsigned int scaling_factor)
138 regmap_update_bits(adv7511->regmap, ADV7511_REG_CSC_UPPER(1),
139 ADV7511_CSC_UPDATE_MODE, ADV7511_CSC_UPDATE_MODE);
142 for (i = 0; i < 12; ++i) {
143 regmap_update_bits(adv7511->regmap,
144 ADV7511_REG_CSC_UPPER(i),
145 0x1f, coeff[i] >> 8);
146 regmap_write(adv7511->regmap,
147 ADV7511_REG_CSC_LOWER(i),
153 regmap_update_bits(adv7511->regmap, ADV7511_REG_CSC_UPPER(0),
154 0xe0, 0x80 | (scaling_factor << 5));
156 regmap_update_bits(adv7511->regmap, ADV7511_REG_CSC_UPPER(0),
159 regmap_update_bits(adv7511->regmap, ADV7511_REG_CSC_UPPER(1),
160 ADV7511_CSC_UPDATE_MODE, 0);
163 static int adv7511_packet_enable(struct adv7511 *adv7511, unsigned int packet)
166 regmap_update_bits(adv7511->regmap, ADV7511_REG_PACKET_ENABLE0,
169 if (packet & 0xff00) {
171 regmap_update_bits(adv7511->regmap, ADV7511_REG_PACKET_ENABLE1,
178 static int adv7511_packet_disable(struct adv7511 *adv7511, unsigned int packet)
181 regmap_update_bits(adv7511->regmap, ADV7511_REG_PACKET_ENABLE0,
184 if (packet & 0xff00) {
186 regmap_update_bits(adv7511->regmap, ADV7511_REG_PACKET_ENABLE1,
193 /* Coefficients for adv7511 color space conversion */
194 static const uint16_t adv7511_csc_ycbcr_to_rgb[] = {
195 0x0734, 0x04ad, 0x0000, 0x1c1b,
196 0x1ddc, 0x04ad, 0x1f24, 0x0135,
197 0x0000, 0x04ad, 0x087c, 0x1b77,
200 static void adv7511_set_config_csc(struct adv7511 *adv7511,
201 struct drm_connector *connector,
202 bool rgb, bool hdmi_mode)
204 struct adv7511_video_config config;
205 bool output_format_422, output_format_ycbcr;
207 uint8_t infoframe[17];
209 config.hdmi_mode = hdmi_mode;
211 hdmi_avi_infoframe_init(&config.avi_infoframe);
213 config.avi_infoframe.scan_mode = HDMI_SCAN_MODE_UNDERSCAN;
216 config.csc_enable = false;
217 config.avi_infoframe.colorspace = HDMI_COLORSPACE_RGB;
219 config.csc_scaling_factor = ADV7511_CSC_SCALING_4;
220 config.csc_coefficents = adv7511_csc_ycbcr_to_rgb;
222 if ((connector->display_info.color_formats &
223 DRM_COLOR_FORMAT_YCRCB422) &&
225 config.csc_enable = false;
226 config.avi_infoframe.colorspace =
227 HDMI_COLORSPACE_YUV422;
229 config.csc_enable = true;
230 config.avi_infoframe.colorspace = HDMI_COLORSPACE_RGB;
234 if (config.hdmi_mode) {
235 mode = ADV7511_HDMI_CFG_MODE_HDMI;
237 switch (config.avi_infoframe.colorspace) {
238 case HDMI_COLORSPACE_YUV444:
239 output_format_422 = false;
240 output_format_ycbcr = true;
242 case HDMI_COLORSPACE_YUV422:
243 output_format_422 = true;
244 output_format_ycbcr = true;
247 output_format_422 = false;
248 output_format_ycbcr = false;
252 mode = ADV7511_HDMI_CFG_MODE_DVI;
253 output_format_422 = false;
254 output_format_ycbcr = false;
257 adv7511_packet_disable(adv7511, ADV7511_PACKET_ENABLE_AVI_INFOFRAME);
259 adv7511_set_colormap(adv7511, config.csc_enable,
260 config.csc_coefficents,
261 config.csc_scaling_factor);
263 regmap_update_bits(adv7511->regmap, ADV7511_REG_VIDEO_INPUT_CFG1, 0x81,
264 (output_format_422 << 7) | output_format_ycbcr);
266 regmap_update_bits(adv7511->regmap, ADV7511_REG_HDCP_HDMI_CFG,
267 ADV7511_HDMI_CFG_MODE_MASK, mode);
269 hdmi_avi_infoframe_pack(&config.avi_infoframe, infoframe,
272 /* The AVI infoframe id is not configurable */
273 regmap_bulk_write(adv7511->regmap, ADV7511_REG_AVI_INFOFRAME_VERSION,
274 infoframe + 1, sizeof(infoframe) - 1);
276 adv7511_packet_enable(adv7511, ADV7511_PACKET_ENABLE_AVI_INFOFRAME);
279 static void adv7511_set_link_config(struct adv7511 *adv7511,
280 const struct adv7511_link_config *config)
283 * The input style values documented in the datasheet don't match the
284 * hardware register field values :-(
286 static const unsigned int input_styles[4] = { 0, 2, 1, 3 };
288 unsigned int clock_delay;
289 unsigned int color_depth;
290 unsigned int input_id;
292 clock_delay = (config->clock_delay + 1200) / 400;
293 color_depth = config->input_color_depth == 8 ? 3
294 : (config->input_color_depth == 10 ? 1 : 2);
296 /* TODO Support input ID 6 */
297 if (config->input_colorspace != HDMI_COLORSPACE_YUV422)
298 input_id = config->input_clock == ADV7511_INPUT_CLOCK_DDR
300 else if (config->input_clock == ADV7511_INPUT_CLOCK_DDR)
301 input_id = config->embedded_sync ? 8 : 7;
302 else if (config->input_clock == ADV7511_INPUT_CLOCK_2X)
303 input_id = config->embedded_sync ? 4 : 3;
305 input_id = config->embedded_sync ? 2 : 1;
307 regmap_update_bits(adv7511->regmap, ADV7511_REG_I2C_FREQ_ID_CFG, 0xf,
309 regmap_update_bits(adv7511->regmap, ADV7511_REG_VIDEO_INPUT_CFG1, 0x7e,
311 (input_styles[config->input_style] << 2));
312 regmap_write(adv7511->regmap, ADV7511_REG_VIDEO_INPUT_CFG2,
313 config->input_justification << 3);
314 regmap_write(adv7511->regmap, ADV7511_REG_TIMING_GEN_SEQ,
315 config->sync_pulse << 2);
317 regmap_write(adv7511->regmap, 0xba, clock_delay << 5);
319 adv7511->embedded_sync = config->embedded_sync;
320 adv7511->hsync_polarity = config->hsync_polarity;
321 adv7511->vsync_polarity = config->vsync_polarity;
322 adv7511->rgb = config->input_colorspace == HDMI_COLORSPACE_RGB;
325 static void __adv7511_power_on(struct adv7511 *adv7511)
327 adv7511->current_edid_segment = -1;
329 regmap_update_bits(adv7511->regmap, ADV7511_REG_POWER,
330 ADV7511_POWER_POWER_DOWN, 0);
331 if (adv7511->i2c_main->irq) {
333 * Documentation says the INT_ENABLE registers are reset in
334 * POWER_DOWN mode. My 7511w preserved the bits, however.
335 * Still, let's be safe and stick to the documentation.
337 regmap_write(adv7511->regmap, ADV7511_REG_INT_ENABLE(0),
338 ADV7511_INT0_EDID_READY | ADV7511_INT0_HPD);
339 regmap_write(adv7511->regmap, ADV7511_REG_INT_ENABLE(1),
340 ADV7511_INT1_DDC_ERROR);
344 * Per spec it is allowed to pulse the HPD signal to indicate that the
345 * EDID information has changed. Some monitors do this when they wakeup
346 * from standby or are enabled. When the HPD goes low the adv7511 is
347 * reset and the outputs are disabled which might cause the monitor to
348 * go to standby again. To avoid this we ignore the HPD pin for the
349 * first few seconds after enabling the output.
351 regmap_update_bits(adv7511->regmap, ADV7511_REG_POWER2,
352 ADV7511_REG_POWER2_HPD_SRC_MASK,
353 ADV7511_REG_POWER2_HPD_SRC_NONE);
356 static void adv7511_power_on(struct adv7511 *adv7511)
358 __adv7511_power_on(adv7511);
361 * Most of the registers are reset during power down or when HPD is low.
363 regcache_sync(adv7511->regmap);
365 if (adv7511->type == ADV7533)
366 adv7533_dsi_power_on(adv7511);
367 adv7511->powered = true;
370 static void __adv7511_power_off(struct adv7511 *adv7511)
372 /* TODO: setup additional power down modes */
373 regmap_update_bits(adv7511->regmap, ADV7511_REG_POWER,
374 ADV7511_POWER_POWER_DOWN,
375 ADV7511_POWER_POWER_DOWN);
376 regcache_mark_dirty(adv7511->regmap);
379 static void adv7511_power_off(struct adv7511 *adv7511)
381 __adv7511_power_off(adv7511);
382 if (adv7511->type == ADV7533)
383 adv7533_dsi_power_off(adv7511);
384 adv7511->powered = false;
387 /* -----------------------------------------------------------------------------
388 * Interrupt and hotplug detection
391 static bool adv7511_hpd(struct adv7511 *adv7511)
396 ret = regmap_read(adv7511->regmap, ADV7511_REG_INT(0), &irq0);
400 if (irq0 & ADV7511_INT0_HPD) {
401 regmap_write(adv7511->regmap, ADV7511_REG_INT(0),
409 static void adv7511_hpd_work(struct work_struct *work)
411 struct adv7511 *adv7511 = container_of(work, struct adv7511, hpd_work);
412 enum drm_connector_status status;
416 ret = regmap_read(adv7511->regmap, ADV7511_REG_STATUS, &val);
418 status = connector_status_disconnected;
419 else if (val & ADV7511_STATUS_HPD)
420 status = connector_status_connected;
422 status = connector_status_disconnected;
424 if (adv7511->connector.status != status) {
425 adv7511->connector.status = status;
426 drm_kms_helper_hotplug_event(adv7511->connector.dev);
430 static int adv7511_irq_process(struct adv7511 *adv7511, bool process_hpd)
432 unsigned int irq0, irq1;
435 ret = regmap_read(adv7511->regmap, ADV7511_REG_INT(0), &irq0);
439 ret = regmap_read(adv7511->regmap, ADV7511_REG_INT(1), &irq1);
443 regmap_write(adv7511->regmap, ADV7511_REG_INT(0), irq0);
444 regmap_write(adv7511->regmap, ADV7511_REG_INT(1), irq1);
446 if (process_hpd && irq0 & ADV7511_INT0_HPD && adv7511->bridge.encoder)
447 schedule_work(&adv7511->hpd_work);
449 if (irq0 & ADV7511_INT0_EDID_READY || irq1 & ADV7511_INT1_DDC_ERROR) {
450 adv7511->edid_read = true;
452 if (adv7511->i2c_main->irq)
453 wake_up_all(&adv7511->wq);
459 static irqreturn_t adv7511_irq_handler(int irq, void *devid)
461 struct adv7511 *adv7511 = devid;
464 ret = adv7511_irq_process(adv7511, true);
465 return ret < 0 ? IRQ_NONE : IRQ_HANDLED;
468 /* -----------------------------------------------------------------------------
472 static int adv7511_wait_for_edid(struct adv7511 *adv7511, int timeout)
476 if (adv7511->i2c_main->irq) {
477 ret = wait_event_interruptible_timeout(adv7511->wq,
478 adv7511->edid_read, msecs_to_jiffies(timeout));
480 for (; timeout > 0; timeout -= 25) {
481 ret = adv7511_irq_process(adv7511, false);
485 if (adv7511->edid_read)
492 return adv7511->edid_read ? 0 : -EIO;
495 static int adv7511_get_edid_block(void *data, u8 *buf, unsigned int block,
498 struct adv7511 *adv7511 = data;
499 struct i2c_msg xfer[2];
507 if (adv7511->current_edid_segment != block / 2) {
510 ret = regmap_read(adv7511->regmap, ADV7511_REG_DDC_STATUS,
516 adv7511->edid_read = false;
517 regmap_write(adv7511->regmap, ADV7511_REG_EDID_SEGMENT,
519 ret = adv7511_wait_for_edid(adv7511, 200);
524 /* Break this apart, hopefully more I2C controllers will
525 * support 64 byte transfers than 256 byte transfers
528 xfer[0].addr = adv7511->i2c_edid->addr;
531 xfer[0].buf = &offset;
532 xfer[1].addr = adv7511->i2c_edid->addr;
533 xfer[1].flags = I2C_M_RD;
535 xfer[1].buf = adv7511->edid_buf;
539 for (i = 0; i < 4; ++i) {
540 ret = i2c_transfer(adv7511->i2c_edid->adapter, xfer,
551 adv7511->current_edid_segment = block / 2;
555 memcpy(buf, adv7511->edid_buf, len);
557 memcpy(buf, adv7511->edid_buf + 128, len);
562 /* -----------------------------------------------------------------------------
566 static int adv7511_get_modes(struct adv7511 *adv7511,
567 struct drm_connector *connector)
572 /* Reading the EDID only works if the device is powered */
573 if (!adv7511->powered) {
574 unsigned int edid_i2c_addr =
575 (adv7511->i2c_main->addr << 1) + 4;
577 __adv7511_power_on(adv7511);
579 /* Reset the EDID_I2C_ADDR register as it might be cleared */
580 regmap_write(adv7511->regmap, ADV7511_REG_EDID_I2C_ADDR,
584 edid = drm_do_get_edid(connector, adv7511_get_edid_block, adv7511);
586 if (!adv7511->powered)
587 __adv7511_power_off(adv7511);
590 drm_mode_connector_update_edid_property(connector, edid);
591 count = drm_add_edid_modes(connector, edid);
593 adv7511_set_config_csc(adv7511, connector, adv7511->rgb,
594 drm_detect_hdmi_monitor(edid));
601 static enum drm_connector_status
602 adv7511_detect(struct adv7511 *adv7511, struct drm_connector *connector)
604 enum drm_connector_status status;
609 ret = regmap_read(adv7511->regmap, ADV7511_REG_STATUS, &val);
611 return connector_status_disconnected;
613 if (val & ADV7511_STATUS_HPD)
614 status = connector_status_connected;
616 status = connector_status_disconnected;
618 hpd = adv7511_hpd(adv7511);
620 /* The chip resets itself when the cable is disconnected, so in case
621 * there is a pending HPD interrupt and the cable is connected there was
622 * at least one transition from disconnected to connected and the chip
623 * has to be reinitialized. */
624 if (status == connector_status_connected && hpd && adv7511->powered) {
625 regcache_mark_dirty(adv7511->regmap);
626 adv7511_power_on(adv7511);
627 adv7511_get_modes(adv7511, connector);
628 if (adv7511->status == connector_status_connected)
629 status = connector_status_disconnected;
631 /* Renable HPD sensing */
632 regmap_update_bits(adv7511->regmap, ADV7511_REG_POWER2,
633 ADV7511_REG_POWER2_HPD_SRC_MASK,
634 ADV7511_REG_POWER2_HPD_SRC_BOTH);
637 adv7511->status = status;
641 static int adv7511_mode_valid(struct adv7511 *adv7511,
642 struct drm_display_mode *mode)
644 if (mode->clock > 165000)
645 return MODE_CLOCK_HIGH;
650 static void adv7511_mode_set(struct adv7511 *adv7511,
651 struct drm_display_mode *mode,
652 struct drm_display_mode *adj_mode)
654 unsigned int low_refresh_rate;
655 unsigned int hsync_polarity = 0;
656 unsigned int vsync_polarity = 0;
658 if (adv7511->embedded_sync) {
659 unsigned int hsync_offset, hsync_len;
660 unsigned int vsync_offset, vsync_len;
662 hsync_offset = adj_mode->crtc_hsync_start -
663 adj_mode->crtc_hdisplay;
664 vsync_offset = adj_mode->crtc_vsync_start -
665 adj_mode->crtc_vdisplay;
666 hsync_len = adj_mode->crtc_hsync_end -
667 adj_mode->crtc_hsync_start;
668 vsync_len = adj_mode->crtc_vsync_end -
669 adj_mode->crtc_vsync_start;
671 /* The hardware vsync generator has a off-by-one bug */
674 regmap_write(adv7511->regmap, ADV7511_REG_HSYNC_PLACEMENT_MSB,
675 ((hsync_offset >> 10) & 0x7) << 5);
676 regmap_write(adv7511->regmap, ADV7511_REG_SYNC_DECODER(0),
677 (hsync_offset >> 2) & 0xff);
678 regmap_write(adv7511->regmap, ADV7511_REG_SYNC_DECODER(1),
679 ((hsync_offset & 0x3) << 6) |
680 ((hsync_len >> 4) & 0x3f));
681 regmap_write(adv7511->regmap, ADV7511_REG_SYNC_DECODER(2),
682 ((hsync_len & 0xf) << 4) |
683 ((vsync_offset >> 6) & 0xf));
684 regmap_write(adv7511->regmap, ADV7511_REG_SYNC_DECODER(3),
685 ((vsync_offset & 0x3f) << 2) |
686 ((vsync_len >> 8) & 0x3));
687 regmap_write(adv7511->regmap, ADV7511_REG_SYNC_DECODER(4),
690 hsync_polarity = !(adj_mode->flags & DRM_MODE_FLAG_PHSYNC);
691 vsync_polarity = !(adj_mode->flags & DRM_MODE_FLAG_PVSYNC);
693 enum adv7511_sync_polarity mode_hsync_polarity;
694 enum adv7511_sync_polarity mode_vsync_polarity;
697 * If the input signal is always low or always high we want to
698 * invert or let it passthrough depending on the polarity of the
701 if (adj_mode->flags & DRM_MODE_FLAG_NHSYNC)
702 mode_hsync_polarity = ADV7511_SYNC_POLARITY_LOW;
704 mode_hsync_polarity = ADV7511_SYNC_POLARITY_HIGH;
706 if (adj_mode->flags & DRM_MODE_FLAG_NVSYNC)
707 mode_vsync_polarity = ADV7511_SYNC_POLARITY_LOW;
709 mode_vsync_polarity = ADV7511_SYNC_POLARITY_HIGH;
711 if (adv7511->hsync_polarity != mode_hsync_polarity &&
712 adv7511->hsync_polarity !=
713 ADV7511_SYNC_POLARITY_PASSTHROUGH)
716 if (adv7511->vsync_polarity != mode_vsync_polarity &&
717 adv7511->vsync_polarity !=
718 ADV7511_SYNC_POLARITY_PASSTHROUGH)
722 if (mode->vrefresh <= 24000)
723 low_refresh_rate = ADV7511_LOW_REFRESH_RATE_24HZ;
724 else if (mode->vrefresh <= 25000)
725 low_refresh_rate = ADV7511_LOW_REFRESH_RATE_25HZ;
726 else if (mode->vrefresh <= 30000)
727 low_refresh_rate = ADV7511_LOW_REFRESH_RATE_30HZ;
729 low_refresh_rate = ADV7511_LOW_REFRESH_RATE_NONE;
731 regmap_update_bits(adv7511->regmap, 0xfb,
732 0x6, low_refresh_rate << 1);
733 regmap_update_bits(adv7511->regmap, 0x17,
734 0x60, (vsync_polarity << 6) | (hsync_polarity << 5));
736 if (adv7511->type == ADV7533)
737 adv7533_mode_set(adv7511, adj_mode);
739 drm_mode_copy(&adv7511->curr_mode, adj_mode);
742 * TODO Test first order 4:2:2 to 4:4:4 up conversion method, which is
743 * supposed to give better results.
746 adv7511->f_tmds = mode->clock;
749 /* Connector funcs */
750 static struct adv7511 *connector_to_adv7511(struct drm_connector *connector)
752 return container_of(connector, struct adv7511, connector);
755 static int adv7511_connector_get_modes(struct drm_connector *connector)
757 struct adv7511 *adv = connector_to_adv7511(connector);
759 return adv7511_get_modes(adv, connector);
762 static enum drm_mode_status
763 adv7511_connector_mode_valid(struct drm_connector *connector,
764 struct drm_display_mode *mode)
766 struct adv7511 *adv = connector_to_adv7511(connector);
768 return adv7511_mode_valid(adv, mode);
771 static struct drm_connector_helper_funcs adv7511_connector_helper_funcs = {
772 .get_modes = adv7511_connector_get_modes,
773 .mode_valid = adv7511_connector_mode_valid,
776 static enum drm_connector_status
777 adv7511_connector_detect(struct drm_connector *connector, bool force)
779 struct adv7511 *adv = connector_to_adv7511(connector);
781 return adv7511_detect(adv, connector);
784 static const struct drm_connector_funcs adv7511_connector_funcs = {
785 .fill_modes = drm_helper_probe_single_connector_modes,
786 .detect = adv7511_connector_detect,
787 .destroy = drm_connector_cleanup,
788 .reset = drm_atomic_helper_connector_reset,
789 .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
790 .atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
794 static struct adv7511 *bridge_to_adv7511(struct drm_bridge *bridge)
796 return container_of(bridge, struct adv7511, bridge);
799 static void adv7511_bridge_enable(struct drm_bridge *bridge)
801 struct adv7511 *adv = bridge_to_adv7511(bridge);
803 adv7511_power_on(adv);
806 static void adv7511_bridge_disable(struct drm_bridge *bridge)
808 struct adv7511 *adv = bridge_to_adv7511(bridge);
810 adv7511_power_off(adv);
813 static void adv7511_bridge_mode_set(struct drm_bridge *bridge,
814 struct drm_display_mode *mode,
815 struct drm_display_mode *adj_mode)
817 struct adv7511 *adv = bridge_to_adv7511(bridge);
819 adv7511_mode_set(adv, mode, adj_mode);
822 static int adv7511_bridge_attach(struct drm_bridge *bridge)
824 struct adv7511 *adv = bridge_to_adv7511(bridge);
827 if (!bridge->encoder) {
828 DRM_ERROR("Parent encoder object not found");
832 adv->connector.polled = DRM_CONNECTOR_POLL_HPD;
834 ret = drm_connector_init(bridge->dev, &adv->connector,
835 &adv7511_connector_funcs,
836 DRM_MODE_CONNECTOR_HDMIA);
838 DRM_ERROR("Failed to initialize connector with drm\n");
841 drm_connector_helper_add(&adv->connector,
842 &adv7511_connector_helper_funcs);
843 drm_mode_connector_attach_encoder(&adv->connector, bridge->encoder);
845 if (adv->type == ADV7533)
846 ret = adv7533_attach_dsi(adv);
848 if (adv->i2c_main->irq)
849 regmap_write(adv->regmap, ADV7511_REG_INT_ENABLE(0),
855 static const struct drm_bridge_funcs adv7511_bridge_funcs = {
856 .enable = adv7511_bridge_enable,
857 .disable = adv7511_bridge_disable,
858 .mode_set = adv7511_bridge_mode_set,
859 .attach = adv7511_bridge_attach,
862 /* -----------------------------------------------------------------------------
866 static const char * const adv7511_supply_names[] = {
874 static const char * const adv7533_supply_names[] = {
883 static int adv7511_init_regulators(struct adv7511 *adv)
885 struct device *dev = &adv->i2c_main->dev;
886 const char * const *supply_names;
890 if (adv->type == ADV7511) {
891 supply_names = adv7511_supply_names;
892 adv->num_supplies = ARRAY_SIZE(adv7511_supply_names);
894 supply_names = adv7533_supply_names;
895 adv->num_supplies = ARRAY_SIZE(adv7533_supply_names);
898 adv->supplies = devm_kcalloc(dev, adv->num_supplies,
899 sizeof(*adv->supplies), GFP_KERNEL);
903 for (i = 0; i < adv->num_supplies; i++)
904 adv->supplies[i].supply = supply_names[i];
906 ret = devm_regulator_bulk_get(dev, adv->num_supplies, adv->supplies);
910 return regulator_bulk_enable(adv->num_supplies, adv->supplies);
913 static void adv7511_uninit_regulators(struct adv7511 *adv)
915 regulator_bulk_disable(adv->num_supplies, adv->supplies);
918 static int adv7511_parse_dt(struct device_node *np,
919 struct adv7511_link_config *config)
924 of_property_read_u32(np, "adi,input-depth", &config->input_color_depth);
925 if (config->input_color_depth != 8 && config->input_color_depth != 10 &&
926 config->input_color_depth != 12)
929 ret = of_property_read_string(np, "adi,input-colorspace", &str);
933 if (!strcmp(str, "rgb"))
934 config->input_colorspace = HDMI_COLORSPACE_RGB;
935 else if (!strcmp(str, "yuv422"))
936 config->input_colorspace = HDMI_COLORSPACE_YUV422;
937 else if (!strcmp(str, "yuv444"))
938 config->input_colorspace = HDMI_COLORSPACE_YUV444;
942 ret = of_property_read_string(np, "adi,input-clock", &str);
946 if (!strcmp(str, "1x"))
947 config->input_clock = ADV7511_INPUT_CLOCK_1X;
948 else if (!strcmp(str, "2x"))
949 config->input_clock = ADV7511_INPUT_CLOCK_2X;
950 else if (!strcmp(str, "ddr"))
951 config->input_clock = ADV7511_INPUT_CLOCK_DDR;
955 if (config->input_colorspace == HDMI_COLORSPACE_YUV422 ||
956 config->input_clock != ADV7511_INPUT_CLOCK_1X) {
957 ret = of_property_read_u32(np, "adi,input-style",
958 &config->input_style);
962 if (config->input_style < 1 || config->input_style > 3)
965 ret = of_property_read_string(np, "adi,input-justification",
970 if (!strcmp(str, "left"))
971 config->input_justification =
972 ADV7511_INPUT_JUSTIFICATION_LEFT;
973 else if (!strcmp(str, "evenly"))
974 config->input_justification =
975 ADV7511_INPUT_JUSTIFICATION_EVENLY;
976 else if (!strcmp(str, "right"))
977 config->input_justification =
978 ADV7511_INPUT_JUSTIFICATION_RIGHT;
983 config->input_style = 1;
984 config->input_justification = ADV7511_INPUT_JUSTIFICATION_LEFT;
987 of_property_read_u32(np, "adi,clock-delay", &config->clock_delay);
988 if (config->clock_delay < -1200 || config->clock_delay > 1600)
991 config->embedded_sync = of_property_read_bool(np, "adi,embedded-sync");
993 /* Hardcode the sync pulse configurations for now. */
994 config->sync_pulse = ADV7511_INPUT_SYNC_PULSE_NONE;
995 config->vsync_polarity = ADV7511_SYNC_POLARITY_PASSTHROUGH;
996 config->hsync_polarity = ADV7511_SYNC_POLARITY_PASSTHROUGH;
1001 static int adv7511_probe(struct i2c_client *i2c, const struct i2c_device_id *id)
1003 struct adv7511_link_config link_config;
1004 struct adv7511 *adv7511;
1005 struct device *dev = &i2c->dev;
1006 unsigned int main_i2c_addr = i2c->addr << 1;
1007 unsigned int edid_i2c_addr = main_i2c_addr + 4;
1014 adv7511 = devm_kzalloc(dev, sizeof(*adv7511), GFP_KERNEL);
1018 adv7511->i2c_main = i2c;
1019 adv7511->powered = false;
1020 adv7511->status = connector_status_disconnected;
1023 adv7511->type = (enum adv7511_type)of_device_get_match_data(dev);
1025 adv7511->type = id->driver_data;
1027 memset(&link_config, 0, sizeof(link_config));
1029 if (adv7511->type == ADV7511)
1030 ret = adv7511_parse_dt(dev->of_node, &link_config);
1032 ret = adv7533_parse_dt(dev->of_node, adv7511);
1036 ret = adv7511_init_regulators(adv7511);
1038 dev_err(dev, "failed to init regulators\n");
1043 * The power down GPIO is optional. If present, toggle it from active to
1044 * inactive to wake up the encoder.
1046 adv7511->gpio_pd = devm_gpiod_get_optional(dev, "pd", GPIOD_OUT_HIGH);
1047 if (IS_ERR(adv7511->gpio_pd)) {
1048 ret = PTR_ERR(adv7511->gpio_pd);
1049 goto uninit_regulators;
1052 if (adv7511->gpio_pd) {
1054 gpiod_set_value_cansleep(adv7511->gpio_pd, 0);
1057 adv7511->regmap = devm_regmap_init_i2c(i2c, &adv7511_regmap_config);
1058 if (IS_ERR(adv7511->regmap)) {
1059 ret = PTR_ERR(adv7511->regmap);
1060 goto uninit_regulators;
1063 ret = regmap_read(adv7511->regmap, ADV7511_REG_CHIP_REVISION, &val);
1065 goto uninit_regulators;
1066 dev_dbg(dev, "Rev. %d\n", val);
1068 if (adv7511->type == ADV7511)
1069 ret = regmap_register_patch(adv7511->regmap,
1070 adv7511_fixed_registers,
1071 ARRAY_SIZE(adv7511_fixed_registers));
1073 ret = adv7533_patch_registers(adv7511);
1075 goto uninit_regulators;
1077 regmap_write(adv7511->regmap, ADV7511_REG_EDID_I2C_ADDR, edid_i2c_addr);
1078 regmap_write(adv7511->regmap, ADV7511_REG_PACKET_I2C_ADDR,
1079 main_i2c_addr - 0xa);
1080 regmap_write(adv7511->regmap, ADV7511_REG_CEC_I2C_ADDR,
1083 adv7511_packet_disable(adv7511, 0xffff);
1085 adv7511->i2c_edid = i2c_new_dummy(i2c->adapter, edid_i2c_addr >> 1);
1086 if (!adv7511->i2c_edid) {
1088 goto uninit_regulators;
1091 if (adv7511->type == ADV7533) {
1092 ret = adv7533_init_cec(adv7511);
1094 goto err_i2c_unregister_edid;
1097 INIT_WORK(&adv7511->hpd_work, adv7511_hpd_work);
1100 init_waitqueue_head(&adv7511->wq);
1102 ret = devm_request_threaded_irq(dev, i2c->irq, NULL,
1103 adv7511_irq_handler,
1104 IRQF_ONESHOT, dev_name(dev),
1107 goto err_unregister_cec;
1110 /* CEC is unused for now */
1111 regmap_write(adv7511->regmap, ADV7511_REG_CEC_CTRL,
1112 ADV7511_CEC_CTRL_POWER_DOWN);
1114 adv7511_power_off(adv7511);
1116 i2c_set_clientdata(i2c, adv7511);
1118 if (adv7511->type == ADV7511)
1119 adv7511_set_link_config(adv7511, &link_config);
1121 adv7511->bridge.funcs = &adv7511_bridge_funcs;
1122 adv7511->bridge.of_node = dev->of_node;
1124 drm_bridge_add(&adv7511->bridge);
1126 adv7511_audio_init(dev, adv7511);
1131 adv7533_uninit_cec(adv7511);
1132 err_i2c_unregister_edid:
1133 i2c_unregister_device(adv7511->i2c_edid);
1135 adv7511_uninit_regulators(adv7511);
1140 static int adv7511_remove(struct i2c_client *i2c)
1142 struct adv7511 *adv7511 = i2c_get_clientdata(i2c);
1144 if (adv7511->type == ADV7533) {
1145 adv7533_detach_dsi(adv7511);
1146 adv7533_uninit_cec(adv7511);
1149 adv7511_uninit_regulators(adv7511);
1151 drm_bridge_remove(&adv7511->bridge);
1153 adv7511_audio_exit(adv7511);
1155 i2c_unregister_device(adv7511->i2c_edid);
1160 static const struct i2c_device_id adv7511_i2c_ids[] = {
1161 { "adv7511", ADV7511 },
1162 { "adv7511w", ADV7511 },
1163 { "adv7513", ADV7511 },
1164 #ifdef CONFIG_DRM_I2C_ADV7533
1165 { "adv7533", ADV7533 },
1169 MODULE_DEVICE_TABLE(i2c, adv7511_i2c_ids);
1171 static const struct of_device_id adv7511_of_ids[] = {
1172 { .compatible = "adi,adv7511", .data = (void *)ADV7511 },
1173 { .compatible = "adi,adv7511w", .data = (void *)ADV7511 },
1174 { .compatible = "adi,adv7513", .data = (void *)ADV7511 },
1175 #ifdef CONFIG_DRM_I2C_ADV7533
1176 { .compatible = "adi,adv7533", .data = (void *)ADV7533 },
1180 MODULE_DEVICE_TABLE(of, adv7511_of_ids);
1182 static struct mipi_dsi_driver adv7533_dsi_driver = {
1183 .driver.name = "adv7533",
1186 static struct i2c_driver adv7511_driver = {
1189 .of_match_table = adv7511_of_ids,
1191 .id_table = adv7511_i2c_ids,
1192 .probe = adv7511_probe,
1193 .remove = adv7511_remove,
1196 static int __init adv7511_init(void)
1198 if (IS_ENABLED(CONFIG_DRM_MIPI_DSI))
1199 mipi_dsi_driver_register(&adv7533_dsi_driver);
1201 return i2c_add_driver(&adv7511_driver);
1203 module_init(adv7511_init);
1205 static void __exit adv7511_exit(void)
1207 i2c_del_driver(&adv7511_driver);
1209 if (IS_ENABLED(CONFIG_DRM_MIPI_DSI))
1210 mipi_dsi_driver_unregister(&adv7533_dsi_driver);
1212 module_exit(adv7511_exit);
1214 MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
1215 MODULE_DESCRIPTION("ADV7511 HDMI transmitter driver");
1216 MODULE_LICENSE("GPL");