diff options
| author | Dmitry Baryshkov <dmitry.baryshkov@linaro.org> | 2024-06-13 20:05:09 +0300 |
|---|---|---|
| committer | Dmitry Baryshkov <dmitry.baryshkov@linaro.org> | 2024-06-24 19:41:05 +0300 |
| commit | 958d8d99ccb31ed5db02644bd138dbf70ace2051 (patch) | |
| tree | 82e72fb2553d56b44e014f886c96a9ce56019915 /drivers/gpu/drm/msm/dsi/dsi_host.c | |
| parent | 47cda61fdc6497405a73f7845032649c03f12eb3 (diff) | |
| download | linux-958d8d99ccb31ed5db02644bd138dbf70ace2051.tar.gz linux-958d8d99ccb31ed5db02644bd138dbf70ace2051.tar.bz2 linux-958d8d99ccb31ed5db02644bd138dbf70ace2051.zip | |
drm/msm/dsi: parse vsync source from device tree
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@quicinc.com>
[DB: fixed clearing of return value if there is no TE property]
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Marijn Suijten <marijn.suijten@somainline.org>
Patchwork: https://patchwork.freedesktop.org/patch/598740/
Link: https://lore.kernel.org/r/20240613-dpu-handle-te-signal-v2-6-67a0116b5366@linaro.org
Diffstat (limited to 'drivers/gpu/drm/msm/dsi/dsi_host.c')
| -rw-r--r-- | drivers/gpu/drm/msm/dsi/dsi_host.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c b/drivers/gpu/drm/msm/dsi/dsi_host.c index 80fa91289381..185d7de0bf37 100644 --- a/drivers/gpu/drm/msm/dsi/dsi_host.c +++ b/drivers/gpu/drm/msm/dsi/dsi_host.c @@ -1794,9 +1794,11 @@ 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; /* @@ -1819,6 +1821,16 @@ 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); + ret = 0; + if (of_property_read_bool(np, "syscon-sfpb")) { msm_host->sfpb = syscon_regmap_lookup_by_phandle(np, "syscon-sfpb"); |