diff options
Diffstat (limited to 'drivers/gpu/drm/bridge')
20 files changed, 115 insertions, 165 deletions
diff --git a/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c b/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c index 66ccb61e2a66..3cd130965e9d 100644 --- a/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c +++ b/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c @@ -877,11 +877,6 @@ static int adv7511_connector_init(struct adv7511 *adv) struct drm_bridge *bridge = &adv->bridge; int ret; - if (!bridge->encoder) { - DRM_ERROR("Parent encoder object not found"); - return -ENODEV; - } - if (adv->i2c_main->irq) adv->connector.polled = DRM_CONNECTOR_POLL_HPD; else diff --git a/drivers/gpu/drm/bridge/analogix/analogix-anx6345.c b/drivers/gpu/drm/bridge/analogix/analogix-anx6345.c index c9e35731e6a1..b754947e3e00 100644 --- a/drivers/gpu/drm/bridge/analogix/analogix-anx6345.c +++ b/drivers/gpu/drm/bridge/analogix/analogix-anx6345.c @@ -47,7 +47,7 @@ struct anx6345 { struct drm_dp_aux aux; struct drm_bridge bridge; struct i2c_client *client; - struct edid *edid; + const struct drm_edid *drm_edid; struct drm_connector connector; struct drm_panel *panel; struct regulator *dvdd12; @@ -458,7 +458,7 @@ static int anx6345_get_modes(struct drm_connector *connector) mutex_lock(&anx6345->lock); - if (!anx6345->edid) { + if (!anx6345->drm_edid) { if (!anx6345->powered) { anx6345_poweron(anx6345); power_off = true; @@ -470,19 +470,18 @@ static int anx6345_get_modes(struct drm_connector *connector) goto unlock; } - anx6345->edid = drm_get_edid(connector, &anx6345->aux.ddc); - if (!anx6345->edid) + anx6345->drm_edid = drm_edid_read_ddc(connector, &anx6345->aux.ddc); + if (!anx6345->drm_edid) DRM_ERROR("Failed to read EDID from panel\n"); - err = drm_connector_update_edid_property(connector, - anx6345->edid); + err = drm_edid_connector_update(connector, anx6345->drm_edid); if (err) { DRM_ERROR("Failed to update EDID property: %d\n", err); goto unlock; } } - num_modes += drm_add_edid_modes(connector, anx6345->edid); + num_modes += drm_edid_connector_add_modes(connector); /* Driver currently supports only 6bpc */ connector->display_info.bpc = 6; @@ -528,11 +527,6 @@ static int anx6345_bridge_attach(struct drm_bridge *bridge, return -EINVAL; } - if (!bridge->encoder) { - DRM_ERROR("Parent encoder object not found"); - return -ENODEV; - } - /* Register aux channel */ anx6345->aux.name = "DP-AUX"; anx6345->aux.dev = &anx6345->client->dev; @@ -793,7 +787,7 @@ static void anx6345_i2c_remove(struct i2c_client *client) unregister_i2c_dummy_clients(anx6345); - kfree(anx6345->edid); + drm_edid_free(anx6345->drm_edid); mutex_destroy(&anx6345->lock); } diff --git a/drivers/gpu/drm/bridge/analogix/analogix-anx78xx.c b/drivers/gpu/drm/bridge/analogix/analogix-anx78xx.c index 5748a8581af4..f74694bb9c50 100644 --- a/drivers/gpu/drm/bridge/analogix/analogix-anx78xx.c +++ b/drivers/gpu/drm/bridge/analogix/analogix-anx78xx.c @@ -67,7 +67,7 @@ struct anx78xx { struct drm_dp_aux aux; struct drm_bridge bridge; struct i2c_client *client; - struct edid *edid; + const struct drm_edid *drm_edid; struct drm_connector connector; struct anx78xx_platform_data pdata; struct mutex lock; @@ -830,8 +830,8 @@ static int anx78xx_get_modes(struct drm_connector *connector) if (WARN_ON(!anx78xx->powered)) return 0; - if (anx78xx->edid) - return drm_add_edid_modes(connector, anx78xx->edid); + if (anx78xx->drm_edid) + return drm_edid_connector_add_modes(connector); mutex_lock(&anx78xx->lock); @@ -841,20 +841,21 @@ static int anx78xx_get_modes(struct drm_connector *connector) goto unlock; } - anx78xx->edid = drm_get_edid(connector, &anx78xx->aux.ddc); - if (!anx78xx->edid) { + anx78xx->drm_edid = drm_edid_read_ddc(connector, &anx78xx->aux.ddc); + + err = drm_edid_connector_update(connector, anx78xx->drm_edid); + + if (!anx78xx->drm_edid) { DRM_ERROR("Failed to read EDID\n"); goto unlock; } - err = drm_connector_update_edid_property(connector, - anx78xx->edid); if (err) { DRM_ERROR("Failed to update EDID property: %d\n", err); goto unlock; } - num_modes = drm_add_edid_modes(connector, anx78xx->edid); + num_modes = drm_edid_connector_add_modes(connector); unlock: mutex_unlock(&anx78xx->lock); @@ -897,11 +898,6 @@ static int anx78xx_bridge_attach(struct drm_bridge *bridge, return -EINVAL; } - if (!bridge->encoder) { - DRM_ERROR("Parent encoder object not found"); - return -ENODEV; - } - /* Register aux channel */ anx78xx->aux.name = "DP-AUX"; anx78xx->aux.dev = &anx78xx->client->dev; @@ -1091,8 +1087,8 @@ static bool anx78xx_handle_common_int_4(struct anx78xx *anx78xx, u8 irq) event = true; anx78xx_poweroff(anx78xx); /* Free cached EDID */ - kfree(anx78xx->edid); - anx78xx->edid = NULL; + drm_edid_free(anx78xx->drm_edid); + anx78xx->drm_edid = NULL; } else if (irq & SP_HPD_PLUG) { DRM_DEBUG_KMS("IRQ: Hot plug detect - cable plug\n"); event = true; @@ -1363,7 +1359,7 @@ static void anx78xx_i2c_remove(struct i2c_client *client) unregister_i2c_dummy_clients(anx78xx); - kfree(anx78xx->edid); + drm_edid_free(anx78xx->drm_edid); } static const struct of_device_id anx78xx_match_table[] = { diff --git a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c index df9370e0ff23..9360b63ad37c 100644 --- a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c +++ b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c @@ -1108,7 +1108,7 @@ out: static int analogix_dp_get_modes(struct drm_connector *connector) { struct analogix_dp_device *dp = to_dp(connector); - struct edid *edid; + const struct drm_edid *drm_edid; int ret, num_modes = 0; if (dp->plat_data->panel) { @@ -1120,12 +1120,13 @@ static int analogix_dp_get_modes(struct drm_connector *connector) return 0; } - edid = drm_get_edid(connector, &dp->aux.ddc); - if (edid) { - drm_connector_update_edid_property(&dp->connector, - edid); - num_modes += drm_add_edid_modes(&dp->connector, edid); - kfree(edid); + drm_edid = drm_edid_read_ddc(connector, &dp->aux.ddc); + + drm_edid_connector_update(&dp->connector, drm_edid); + + if (drm_edid) { + num_modes += drm_edid_connector_add_modes(&dp->connector); + drm_edid_free(drm_edid); } ret = analogix_dp_prepare_panel(dp, false, false); @@ -1228,11 +1229,6 @@ static int analogix_dp_bridge_attach(struct drm_bridge *bridge, return -EINVAL; } - if (!bridge->encoder) { - DRM_ERROR("Parent encoder object not found"); - return -ENODEV; - } - if (!dp->plat_data->skip_connector) { connector = &dp->connector; connector->polled = DRM_CONNECTOR_POLL_HPD; diff --git a/drivers/gpu/drm/bridge/analogix/anx7625.c b/drivers/gpu/drm/bridge/analogix/anx7625.c index 59e9ad349969..88e4aa5830f3 100644 --- a/drivers/gpu/drm/bridge/analogix/anx7625.c +++ b/drivers/gpu/drm/bridge/analogix/anx7625.c @@ -464,9 +464,11 @@ static int anx7625_odfc_config(struct anx7625_data *ctx, */ static int anx7625_set_k_value(struct anx7625_data *ctx) { - struct edid *edid = (struct edid *)ctx->slimport_edid_p.edid_raw_data; + struct drm_edid_product_id id; - if (edid->mfg_id[0] == IVO_MID0 && edid->mfg_id[1] == IVO_MID1) + drm_edid_get_product_id(ctx->cached_drm_edid, &id); + + if (be16_to_cpu(id.manufacturer_name) == IVO_MID) return anx7625_reg_write(ctx, ctx->i2c.rx_p1_client, MIPI_DIGITAL_ADJ_1, 0x3B); @@ -1526,7 +1528,8 @@ static int anx7625_wait_hpd_asserted(struct drm_dp_aux *aux, static void anx7625_remove_edid(struct anx7625_data *ctx) { - ctx->slimport_edid_p.edid_block_num = -1; + drm_edid_free(ctx->cached_drm_edid); + ctx->cached_drm_edid = NULL; } static void anx7625_dp_adjust_swing(struct anx7625_data *ctx) @@ -1787,27 +1790,32 @@ static ssize_t anx7625_aux_transfer(struct drm_dp_aux *aux, static const struct drm_edid *anx7625_edid_read(struct anx7625_data *ctx) { struct device *dev = ctx->dev; - struct s_edid_data *p_edid = &ctx->slimport_edid_p; + u8 *edid_buf; int edid_num; - if (ctx->slimport_edid_p.edid_block_num > 0) + if (ctx->cached_drm_edid) goto out; + edid_buf = kmalloc(FOUR_BLOCK_SIZE, GFP_KERNEL); + if (!edid_buf) + return NULL; + pm_runtime_get_sync(dev); _anx7625_hpd_polling(ctx, 5000 * 100); - edid_num = sp_tx_edid_read(ctx, p_edid->edid_raw_data); + edid_num = sp_tx_edid_read(ctx, edid_buf); pm_runtime_put_sync(dev); if (edid_num < 1) { DRM_DEV_ERROR(dev, "Fail to read EDID: %d\n", edid_num); + kfree(edid_buf); return NULL; } - p_edid->edid_block_num = edid_num; + ctx->cached_drm_edid = drm_edid_alloc(edid_buf, FOUR_BLOCK_SIZE); + kfree(edid_buf); out: - return drm_edid_alloc(ctx->slimport_edid_p.edid_raw_data, - FOUR_BLOCK_SIZE); + return drm_edid_dup(ctx->cached_drm_edid); } static enum drm_connector_status anx7625_sink_detect(struct anx7625_data *ctx) @@ -2193,11 +2201,6 @@ static int anx7625_bridge_attach(struct drm_bridge *bridge, if (!(flags & DRM_BRIDGE_ATTACH_NO_CONNECTOR)) return -EINVAL; - if (!bridge->encoder) { - DRM_DEV_ERROR(dev, "Parent encoder object not found"); - return -ENODEV; - } - ctx->aux.drm_dev = bridge->dev; err = drm_dp_aux_register(&ctx->aux); if (err) { @@ -2435,11 +2438,6 @@ static void anx7625_bridge_atomic_enable(struct drm_bridge *bridge, dev_dbg(dev, "drm atomic enable\n"); - if (!bridge->encoder) { - dev_err(dev, "Parent encoder object not found"); - return; - } - connector = drm_atomic_get_new_connector_for_encoder(state->base.state, bridge->encoder); if (!connector) diff --git a/drivers/gpu/drm/bridge/analogix/anx7625.h b/drivers/gpu/drm/bridge/analogix/anx7625.h index 39ed35d33836..eb5580f1ab2f 100644 --- a/drivers/gpu/drm/bridge/analogix/anx7625.h +++ b/drivers/gpu/drm/bridge/analogix/anx7625.h @@ -286,8 +286,7 @@ #define MIPI_LANE_CTRL_10 0x0F #define MIPI_DIGITAL_ADJ_1 0x1B -#define IVO_MID0 0x26 -#define IVO_MID1 0xCF +#define IVO_MID 0x26CF #define MIPI_PLL_M_NUM_23_16 0x1E #define MIPI_PLL_M_NUM_15_8 0x1F @@ -417,11 +416,6 @@ enum audio_wd_len { #define EDID_TRY_CNT 3 #define SUPPORT_PIXEL_CLOCK 300000 -struct s_edid_data { - int edid_block_num; - u8 edid_raw_data[FOUR_BLOCK_SIZE]; -}; - /***************** Display End *****************/ #define MAX_LANES_SUPPORT 4 @@ -466,7 +460,7 @@ struct anx7625_data { struct anx7625_i2c_client i2c; struct i2c_client *last_client; struct timer_list hdcp_timer; - struct s_edid_data slimport_edid_p; + const struct drm_edid *cached_drm_edid; struct device *codec_dev; hdmi_codec_plugged_cb plugged_cb; struct work_struct work; diff --git a/drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.c b/drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.c index 8a91ef0ae065..dee640ab1d3a 100644 --- a/drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.c +++ b/drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.c @@ -1697,11 +1697,6 @@ static int cdns_mhdp_connector_init(struct cdns_mhdp_device *mhdp) struct drm_bridge *bridge = &mhdp->bridge; int ret; - if (!bridge->encoder) { - dev_err(mhdp->dev, "Parent encoder object not found"); - return -ENODEV; - } - conn->polled = DRM_CONNECTOR_POLL_HPD; ret = drm_connector_init(bridge->dev, conn, &cdns_mhdp_conn_funcs, diff --git a/drivers/gpu/drm/bridge/imx/imx-ldb-helper.c b/drivers/gpu/drm/bridge/imx/imx-ldb-helper.c index 6967325cd8ee..9b5bebbe357d 100644 --- a/drivers/gpu/drm/bridge/imx/imx-ldb-helper.c +++ b/drivers/gpu/drm/bridge/imx/imx-ldb-helper.c @@ -116,11 +116,6 @@ int ldb_bridge_attach_helper(struct drm_bridge *bridge, return -EINVAL; } - if (!bridge->encoder) { - DRM_DEV_ERROR(ldb->dev, "missing encoder\n"); - return -ENODEV; - } - return drm_bridge_attach(bridge->encoder, ldb_ch->next_bridge, bridge, DRM_BRIDGE_ATTACH_NO_CONNECTOR); diff --git a/drivers/gpu/drm/bridge/imx/imx8qxp-pixel-combiner.c b/drivers/gpu/drm/bridge/imx/imx8qxp-pixel-combiner.c index d0868a6ac6c9..e6dbbdc87ce2 100644 --- a/drivers/gpu/drm/bridge/imx/imx8qxp-pixel-combiner.c +++ b/drivers/gpu/drm/bridge/imx/imx8qxp-pixel-combiner.c @@ -119,11 +119,6 @@ static int imx8qxp_pc_bridge_attach(struct drm_bridge *bridge, return -EINVAL; } - if (!bridge->encoder) { - DRM_DEV_ERROR(pc->dev, "missing encoder\n"); - return -ENODEV; - } - return drm_bridge_attach(bridge->encoder, ch->next_bridge, bridge, DRM_BRIDGE_ATTACH_NO_CONNECTOR); diff --git a/drivers/gpu/drm/bridge/imx/imx8qxp-pixel-link.c b/drivers/gpu/drm/bridge/imx/imx8qxp-pixel-link.c index ed8b7a4e0e11..1d11cc1df43c 100644 --- a/drivers/gpu/drm/bridge/imx/imx8qxp-pixel-link.c +++ b/drivers/gpu/drm/bridge/imx/imx8qxp-pixel-link.c @@ -138,11 +138,6 @@ static int imx8qxp_pixel_link_bridge_attach(struct drm_bridge *bridge, return -EINVAL; } - if (!bridge->encoder) { - DRM_DEV_ERROR(pl->dev, "missing encoder\n"); - return -ENODEV; - } - return drm_bridge_attach(bridge->encoder, pl->next_bridge, bridge, DRM_BRIDGE_ATTACH_NO_CONNECTOR); diff --git a/drivers/gpu/drm/bridge/imx/imx8qxp-pxl2dpi.c b/drivers/gpu/drm/bridge/imx/imx8qxp-pxl2dpi.c index 4a886cb808ca..fb7cf4369bb8 100644 --- a/drivers/gpu/drm/bridge/imx/imx8qxp-pxl2dpi.c +++ b/drivers/gpu/drm/bridge/imx/imx8qxp-pxl2dpi.c @@ -58,11 +58,6 @@ static int imx8qxp_pxl2dpi_bridge_attach(struct drm_bridge *bridge, return -EINVAL; } - if (!bridge->encoder) { - DRM_DEV_ERROR(p2d->dev, "missing encoder\n"); - return -ENODEV; - } - return drm_bridge_attach(bridge->encoder, p2d->next_bridge, bridge, DRM_BRIDGE_ATTACH_NO_CONNECTOR); diff --git a/drivers/gpu/drm/bridge/ite-it6505.c b/drivers/gpu/drm/bridge/ite-it6505.c index 3f68c82888c2..cd1b5057ddfb 100644 --- a/drivers/gpu/drm/bridge/ite-it6505.c +++ b/drivers/gpu/drm/bridge/ite-it6505.c @@ -1307,9 +1307,15 @@ static void it6505_video_reset(struct it6505 *it6505) it6505_link_reset_step_train(it6505); it6505_set_bits(it6505, REG_DATA_MUTE_CTRL, EN_VID_MUTE, EN_VID_MUTE); it6505_set_bits(it6505, REG_INFOFRAME_CTRL, EN_VID_CTRL_PKT, 0x00); - it6505_set_bits(it6505, REG_RESET_CTRL, VIDEO_RESET, VIDEO_RESET); + + it6505_set_bits(it6505, REG_VID_BUS_CTRL1, TX_FIFO_RESET, TX_FIFO_RESET); + it6505_set_bits(it6505, REG_VID_BUS_CTRL1, TX_FIFO_RESET, 0x00); + it6505_set_bits(it6505, REG_501_FIFO_CTRL, RST_501_FIFO, RST_501_FIFO); it6505_set_bits(it6505, REG_501_FIFO_CTRL, RST_501_FIFO, 0x00); + + it6505_set_bits(it6505, REG_RESET_CTRL, VIDEO_RESET, VIDEO_RESET); + usleep_range(1000, 2000); it6505_set_bits(it6505, REG_RESET_CTRL, VIDEO_RESET, 0x00); } @@ -2245,12 +2251,11 @@ static void it6505_link_training_work(struct work_struct *work) if (ret) { it6505->auto_train_retry = AUTO_TRAIN_RETRY; it6505_link_train_ok(it6505); - return; } else { it6505->auto_train_retry--; + it6505_dump(it6505); } - it6505_dump(it6505); } static void it6505_plugged_status_to_codec(struct it6505 *it6505) @@ -2471,31 +2476,53 @@ static void it6505_irq_link_train_fail(struct it6505 *it6505) schedule_work(&it6505->link_works); } -static void it6505_irq_video_fifo_error(struct it6505 *it6505) +static bool it6505_test_bit(unsigned int bit, const unsigned int *addr) { - struct device *dev = it6505->dev; - - DRM_DEV_DEBUG_DRIVER(dev, "video fifo overflow interrupt"); - it6505->auto_train_retry = AUTO_TRAIN_RETRY; - flush_work(&it6505->link_works); - it6505_stop_hdcp(it6505); - it6505_video_reset(it6505); + return 1 & (addr[bit / BITS_PER_BYTE] >> (bit % BITS_PER_BYTE)); } -static void it6505_irq_io_latch_fifo_overflow(struct it6505 *it6505) +static void it6505_irq_video_handler(struct it6505 *it6505, const int *int_status) { struct device *dev = it6505->dev; + int reg_0d, reg_int03; - DRM_DEV_DEBUG_DRIVER(dev, "IO latch fifo overflow interrupt"); - it6505->auto_train_retry = AUTO_TRAIN_RETRY; - flush_work(&it6505->link_works); - it6505_stop_hdcp(it6505); - it6505_video_reset(it6505); -} + /* + * When video SCDT change with video not stable, + * Or video FIFO error, need video reset + */ -static bool it6505_test_bit(unsigned int bit, const unsigned int *addr) -{ - return 1 & (addr[bit / BITS_PER_BYTE] >> (bit % BITS_PER_BYTE)); + if ((!it6505_get_video_status(it6505) && + (it6505_test_bit(INT_SCDT_CHANGE, (unsigned int *)int_status))) || + (it6505_test_bit(BIT_INT_IO_FIFO_OVERFLOW, + (unsigned int *)int_status)) || + (it6505_test_bit(BIT_INT_VID_FIFO_ERROR, + (unsigned int *)int_status))) { + it6505->auto_train_retry = AUTO_TRAIN_RETRY; + flush_work(&it6505->link_works); + it6505_stop_hdcp(it6505); + it6505_video_reset(it6505); + + usleep_range(10000, 11000); + + /* + * Clear FIFO error IRQ to prevent fifo error -> reset loop + * HW will trigger SCDT change IRQ again when video stable + */ + + reg_int03 = it6505_read(it6505, INT_STATUS_03); + reg_0d = it6505_read(it6505, REG_SYSTEM_STS); + + reg_int03 &= (BIT(INT_VID_FIFO_ERROR) | BIT(INT_IO_LATCH_FIFO_OVERFLOW)); + it6505_write(it6505, INT_STATUS_03, reg_int03); + + DRM_DEV_DEBUG_DRIVER(dev, "reg08 = 0x%02x", reg_int03); + DRM_DEV_DEBUG_DRIVER(dev, "reg0D = 0x%02x", reg_0d); + + return; + } + + if (it6505_test_bit(INT_SCDT_CHANGE, (unsigned int *)int_status)) + it6505_irq_scdt(it6505); } static irqreturn_t it6505_int_threaded_handler(int unused, void *data) @@ -2508,15 +2535,12 @@ static irqreturn_t it6505_int_threaded_handler(int unused, void *data) } irq_vec[] = { { BIT_INT_HPD, it6505_irq_hpd }, { BIT_INT_HPD_IRQ, it6505_irq_hpd_irq }, - { BIT_INT_SCDT, it6505_irq_scdt }, { BIT_INT_HDCP_FAIL, it6505_irq_hdcp_fail }, { BIT_INT_HDCP_DONE, it6505_irq_hdcp_done }, { BIT_INT_AUX_CMD_FAIL, it6505_irq_aux_cmd_fail }, { BIT_INT_HDCP_KSV_CHECK, it6505_irq_hdcp_ksv_check }, { BIT_INT_AUDIO_FIFO_ERROR, it6505_irq_audio_fifo_error }, { BIT_INT_LINK_TRAIN_FAIL, it6505_irq_link_train_fail }, - { BIT_INT_VID_FIFO_ERROR, it6505_irq_video_fifo_error }, - { BIT_INT_IO_FIFO_OVERFLOW, it6505_irq_io_latch_fifo_overflow }, }; int int_status[3], i; @@ -2546,6 +2570,7 @@ static irqreturn_t it6505_int_threaded_handler(int unused, void *data) if (it6505_test_bit(irq_vec[i].bit, (unsigned int *)int_status)) irq_vec[i].handler(it6505); } + it6505_irq_video_handler(it6505, (unsigned int *)int_status); } pm_runtime_put_sync(dev); @@ -2882,11 +2907,6 @@ static int it6505_bridge_attach(struct drm_bridge *bridge, return -EINVAL; } - if (!bridge->encoder) { - dev_err(dev, "Parent encoder object not found"); - return -ENODEV; - } - /* Register aux channel */ it6505->aux.drm_dev = bridge->dev; diff --git a/drivers/gpu/drm/bridge/lontium-lt9611uxc.c b/drivers/gpu/drm/bridge/lontium-lt9611uxc.c index ab702471f3ab..f864c033ba81 100644 --- a/drivers/gpu/drm/bridge/lontium-lt9611uxc.c +++ b/drivers/gpu/drm/bridge/lontium-lt9611uxc.c @@ -337,11 +337,6 @@ static int lt9611uxc_connector_init(struct drm_bridge *bridge, struct lt9611uxc { int ret; - if (!bridge->encoder) { - DRM_ERROR("Parent encoder object not found"); - return -ENODEV; - } - lt9611uxc->connector.polled = DRM_CONNECTOR_POLL_HPD; drm_connector_helper_add(<9611uxc->connector, diff --git a/drivers/gpu/drm/bridge/megachips-stdpxxxx-ge-b850v3-fw.c b/drivers/gpu/drm/bridge/megachips-stdpxxxx-ge-b850v3-fw.c index 4480523244e4..37f1acf5c0f8 100644 --- a/drivers/gpu/drm/bridge/megachips-stdpxxxx-ge-b850v3-fw.c +++ b/drivers/gpu/drm/bridge/megachips-stdpxxxx-ge-b850v3-fw.c @@ -165,11 +165,6 @@ static int ge_b850v3_lvds_create_connector(struct drm_bridge *bridge) struct drm_connector *connector = &ge_b850v3_lvds_ptr->connector; int ret; - if (!bridge->encoder) { - DRM_ERROR("Parent encoder object not found"); - return -ENODEV; - } - connector->polled = DRM_CONNECTOR_POLL_HPD; drm_connector_helper_add(connector, diff --git a/drivers/gpu/drm/bridge/nxp-ptn3460.c b/drivers/gpu/drm/bridge/nxp-ptn3460.c index ed93fd4c3265..e77aab965fcf 100644 --- a/drivers/gpu/drm/bridge/nxp-ptn3460.c +++ b/drivers/gpu/drm/bridge/nxp-ptn3460.c @@ -229,11 +229,6 @@ static int ptn3460_bridge_attach(struct drm_bridge *bridge, if (flags & DRM_BRIDGE_ATTACH_NO_CONNECTOR) return 0; - if (!bridge->encoder) { - DRM_ERROR("Parent encoder object not found"); - return -ENODEV; - } - ptn_bridge->connector.polled = DRM_CONNECTOR_POLL_HPD; ret = drm_connector_init(bridge->dev, &ptn_bridge->connector, &ptn3460_connector_funcs, DRM_MODE_CONNECTOR_LVDS); diff --git a/drivers/gpu/drm/bridge/panel.c b/drivers/gpu/drm/bridge/panel.c index 32506524d9a2..56c40b516a8f 100644 --- a/drivers/gpu/drm/bridge/panel.c +++ b/drivers/gpu/drm/bridge/panel.c @@ -67,11 +67,6 @@ static int panel_bridge_attach(struct drm_bridge *bridge, if (flags & DRM_BRIDGE_ATTACH_NO_CONNECTOR) return 0; - if (!bridge->encoder) { - DRM_ERROR("Missing encoder\n"); - return -ENODEV; - } - drm_connector_helper_add(connector, &panel_bridge_connector_helper_funcs); diff --git a/drivers/gpu/drm/bridge/simple-bridge.c b/drivers/gpu/drm/bridge/simple-bridge.c index 5813a2c4fc5e..2ca89f313cd1 100644 --- a/drivers/gpu/drm/bridge/simple-bridge.c +++ b/drivers/gpu/drm/bridge/simple-bridge.c @@ -116,11 +116,6 @@ static int simple_bridge_attach(struct drm_bridge *bridge, if (flags & DRM_BRIDGE_ATTACH_NO_CONNECTOR) return 0; - if (!bridge->encoder) { - DRM_ERROR("Missing encoder\n"); - return -ENODEV; - } - drm_connector_helper_add(&sbridge->connector, &simple_bridge_con_helper_funcs); ret = drm_connector_init_with_ddc(bridge->dev, &sbridge->connector, diff --git a/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c b/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c index 824fb3c65742..c4e9d96933dc 100644 --- a/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c +++ b/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c @@ -1071,11 +1071,6 @@ static int dw_mipi_dsi_bridge_attach(struct drm_bridge *bridge, { struct dw_mipi_dsi *dsi = bridge_to_dsi(bridge); - if (!bridge->encoder) { - DRM_ERROR("Parent encoder object not found\n"); - return -ENODEV; - } - /* Set the encoder type as caller does not know it */ bridge->encoder->encoder_type = DRM_MODE_ENCODER_DSI; diff --git a/drivers/gpu/drm/bridge/tc358767.c b/drivers/gpu/drm/bridge/tc358767.c index 166f9a3e9622..fe2b93546eae 100644 --- a/drivers/gpu/drm/bridge/tc358767.c +++ b/drivers/gpu/drm/bridge/tc358767.c @@ -382,6 +382,9 @@ struct tc_data { /* HPD pin number (0 or 1) or -ENODEV */ int hpd_pin; + + /* Number of pixels to subtract from a line due to pixel clock delta */ + u32 line_pixel_subtract; }; static inline struct tc_data *aux_to_tc(struct drm_dp_aux *a) @@ -577,6 +580,11 @@ static int tc_pllupdate(struct tc_data *tc, unsigned int pllctrl) return 0; } +static u32 div64_round_up(u64 v, u32 d) +{ + return div_u64(v + d - 1, d); +} + static int tc_pxl_pll_en(struct tc_data *tc, u32 refclk, u32 pixelclock) { int ret; @@ -658,8 +666,11 @@ static int tc_pxl_pll_en(struct tc_data *tc, u32 refclk, u32 pixelclock) return -EINVAL; } - dev_dbg(tc->dev, "PLL: got %d, delta %d\n", best_pixelclock, - best_delta); + tc->line_pixel_subtract = tc->mode.htotal - + div64_round_up(tc->mode.htotal * (u64)best_pixelclock, pixelclock); + + dev_dbg(tc->dev, "PLL: got %d, delta %d (subtract %d px)\n", best_pixelclock, + best_delta, tc->line_pixel_subtract); dev_dbg(tc->dev, "PLL: %d / %d / %d * %d / %d\n", refclk, ext_div[best_pre], best_div, best_mul, ext_div[best_post]); @@ -885,6 +896,12 @@ static int tc_set_common_video_mode(struct tc_data *tc, upper_margin, lower_margin, vsync_len); dev_dbg(tc->dev, "total: %dx%d\n", mode->htotal, mode->vtotal); + if (right_margin > tc->line_pixel_subtract) { + right_margin -= tc->line_pixel_subtract; + } else { + dev_err(tc->dev, "Bridge pixel clock too slow for mode\n"); + right_margin = 0; + } /* * LCD Ctl Frame Size @@ -894,7 +911,7 @@ static int tc_set_common_video_mode(struct tc_data *tc, */ ret = regmap_write(tc->regmap, VPCTRL0, FIELD_PREP(VSDELAY, right_margin + 10) | - OPXLFMT_RGB888 | FRMSYNC_DISABLED | MSF_DISABLED); + OPXLFMT_RGB888 | FRMSYNC_ENABLED | MSF_DISABLED); if (ret) return ret; diff --git a/drivers/gpu/drm/bridge/ti-tfp410.c b/drivers/gpu/drm/bridge/ti-tfp410.c index c7bef5c23927..b1b1e4d5a24a 100644 --- a/drivers/gpu/drm/bridge/ti-tfp410.c +++ b/drivers/gpu/drm/bridge/ti-tfp410.c @@ -133,11 +133,6 @@ static int tfp410_attach(struct drm_bridge *bridge, if (flags & DRM_BRIDGE_ATTACH_NO_CONNECTOR) return 0; - if (!bridge->encoder) { - dev_err(dvi->dev, "Missing encoder\n"); - return -ENODEV; - } - if (dvi->next_bridge->ops & DRM_BRIDGE_OP_DETECT) dvi->connector.polled = DRM_CONNECTOR_POLL_HPD; else |