Allow board's device tree to specify the vsync source (aka TE source). If the property is omitted, the display controller driver will use the default setting. Reviewed-by: Abhinav Kumar <quic_abhinavk@xxxxxxxxxxx> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx> --- drivers/gpu/drm/msm/dsi/dsi.h | 1 + drivers/gpu/drm/msm/dsi/dsi_host.c | 11 +++++++++++ drivers/gpu/drm/msm/dsi/dsi_manager.c | 5 +++++ drivers/gpu/drm/msm/msm_drv.h | 6 ++++++ 4 files changed, 23 insertions(+) diff --git a/drivers/gpu/drm/msm/dsi/dsi.h b/drivers/gpu/drm/msm/dsi/dsi.h index afc290408ba4..87496db203d6 100644 --- a/drivers/gpu/drm/msm/dsi/dsi.h +++ b/drivers/gpu/drm/msm/dsi/dsi.h @@ -37,6 +37,7 @@ struct msm_dsi { struct mipi_dsi_host *host; struct msm_dsi_phy *phy; + const char *te_source; struct drm_bridge *next_bridge; diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c b/drivers/gpu/drm/msm/dsi/dsi_host.c index c4d72562c95a..c26ad0fed54d 100644 --- a/drivers/gpu/drm/msm/dsi/dsi_host.c +++ b/drivers/gpu/drm/msm/dsi/dsi_host.c @@ -1786,9 +1786,11 @@ static int dsi_populate_dsc_params(struct msm_dsi_host *msm_host, struct drm_dsc static int dsi_host_parse_dt(struct msm_dsi_host *msm_host) { + struct msm_dsi *msm_dsi = platform_get_drvdata(msm_host->pdev); struct device *dev = &msm_host->pdev->dev; struct device_node *np = dev->of_node; struct device_node *endpoint; + const char *te_source; int ret = 0; /* @@ -1811,6 +1813,15 @@ static int dsi_host_parse_dt(struct msm_dsi_host *msm_host) goto err; } + ret = of_property_read_string(endpoint, "qcom,te-source", &te_source); + if (ret && ret != -EINVAL) { + DRM_DEV_ERROR(dev, "%s: invalid TE source configuration %d\n", + __func__, ret); + goto err; + } + if (!ret) + msm_dsi->te_source = devm_kstrdup(dev, te_source, GFP_KERNEL); + if (of_property_read_bool(np, "syscon-sfpb")) { msm_host->sfpb = syscon_regmap_lookup_by_phandle(np, "syscon-sfpb"); diff --git a/drivers/gpu/drm/msm/dsi/dsi_manager.c b/drivers/gpu/drm/msm/dsi/dsi_manager.c index 5b3f3068fd92..a210b7c9e5ca 100644 --- a/drivers/gpu/drm/msm/dsi/dsi_manager.c +++ b/drivers/gpu/drm/msm/dsi/dsi_manager.c @@ -603,3 +603,8 @@ bool msm_dsi_is_master_dsi(struct msm_dsi *msm_dsi) { return IS_MASTER_DSI_LINK(msm_dsi->id); } + +const char *msm_dsi_get_te_source(struct msm_dsi *msm_dsi) +{ + return msm_dsi->te_source; +} diff --git a/drivers/gpu/drm/msm/msm_drv.h b/drivers/gpu/drm/msm/msm_drv.h index 912ebaa5df84..afd98dffea99 100644 --- a/drivers/gpu/drm/msm/msm_drv.h +++ b/drivers/gpu/drm/msm/msm_drv.h @@ -330,6 +330,7 @@ bool msm_dsi_is_bonded_dsi(struct msm_dsi *msm_dsi); bool msm_dsi_is_master_dsi(struct msm_dsi *msm_dsi); bool msm_dsi_wide_bus_enabled(struct msm_dsi *msm_dsi); struct drm_dsc_config *msm_dsi_get_dsc_config(struct msm_dsi *msm_dsi); +const char *msm_dsi_get_te_source(struct msm_dsi *msm_dsi); #else static inline void __init msm_dsi_register(void) { @@ -367,6 +368,11 @@ static inline struct drm_dsc_config *msm_dsi_get_dsc_config(struct msm_dsi *msm_ { return NULL; } + +static inline const char *msm_dsi_get_te_source(struct msm_dsi *msm_dsi) +{ + return NULL; +} #endif #ifdef CONFIG_DRM_MSM_DP -- 2.39.2