Changes since v1: - fix build err.
Jitao Shi (3): drm/mediatek: mtk_dpi: Add check for max clock rate in mode_valid drm/mediatek: mtk_dpi: Add dpi config for mt8192 dt-bindings: mediatek,dpi: add mt8192 to mediatek,dpi
.../display/mediatek/mediatek,dpi.yaml | 1 + drivers/gpu/drm/mediatek/mtk_dpi.c | 26 +++++++++++++++++++ 2 files changed, 27 insertions(+)
Add per-platform max clock rate check in mtk_dpi_bridge_mode_valid.
Signed-off-by: Jitao Shi jitao.shi@mediatek.com --- drivers/gpu/drm/mediatek/mtk_dpi.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+)
diff --git a/drivers/gpu/drm/mediatek/mtk_dpi.c b/drivers/gpu/drm/mediatek/mtk_dpi.c index 52f11a63a330..ffa4a0f1989f 100644 --- a/drivers/gpu/drm/mediatek/mtk_dpi.c +++ b/drivers/gpu/drm/mediatek/mtk_dpi.c @@ -118,6 +118,7 @@ struct mtk_dpi_yc_limit { struct mtk_dpi_conf { unsigned int (*cal_factor)(int clock); u32 reg_h_fre_con; + u32 max_clock_khz; bool edge_sel_en; };
@@ -555,9 +556,22 @@ static void mtk_dpi_bridge_enable(struct drm_bridge *bridge) mtk_dpi_set_display_mode(dpi, &dpi->mode); }
+static enum drm_mode_status +mtk_dpi_bridge_mode_valid(struct drm_bridge *bridge, + const struct drm_display_mode *mode) +{ + struct mtk_dpi *dpi = bridge_to_dpi(bridge); + + if (dpi->conf->max_clock_khz && mode->clock > dpi->conf->max_clock_khz) + return MODE_CLOCK_HIGH; + + return MODE_OK; +} + static const struct drm_bridge_funcs mtk_dpi_bridge_funcs = { .attach = mtk_dpi_bridge_attach, .mode_set = mtk_dpi_bridge_mode_set, + .mode_valid = mtk_dpi_bridge_mode_valid, .disable = mtk_dpi_bridge_disable, .enable = mtk_dpi_bridge_enable, }; @@ -673,17 +687,20 @@ static unsigned int mt8183_calculate_factor(int clock) static const struct mtk_dpi_conf mt8173_conf = { .cal_factor = mt8173_calculate_factor, .reg_h_fre_con = 0xe0, + .max_clock_khz = 300000, };
static const struct mtk_dpi_conf mt2701_conf = { .cal_factor = mt2701_calculate_factor, .reg_h_fre_con = 0xb0, .edge_sel_en = true, + .max_clock_khz = 150000, };
static const struct mtk_dpi_conf mt8183_conf = { .cal_factor = mt8183_calculate_factor, .reg_h_fre_con = 0xe0, + .max_clock_khz = 100000, };
static int mtk_dpi_probe(struct platform_device *pdev)
Signed-off-by: Jitao Shi jitao.shi@mediatek.com --- drivers/gpu/drm/mediatek/mtk_dpi.c | 9 +++++++++ 1 file changed, 9 insertions(+)
diff --git a/drivers/gpu/drm/mediatek/mtk_dpi.c b/drivers/gpu/drm/mediatek/mtk_dpi.c index ffa4a0f1989f..f6f71eb67ff1 100644 --- a/drivers/gpu/drm/mediatek/mtk_dpi.c +++ b/drivers/gpu/drm/mediatek/mtk_dpi.c @@ -703,6 +703,12 @@ static const struct mtk_dpi_conf mt8183_conf = { .max_clock_khz = 100000, };
+static const struct mtk_dpi_conf mt8192_conf = { + .cal_factor = mt8183_calculate_factor, + .reg_h_fre_con = 0xe0, + .max_clock_khz = 150000, +}; + static int mtk_dpi_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; @@ -837,6 +843,9 @@ static const struct of_device_id mtk_dpi_of_ids[] = { { .compatible = "mediatek,mt8183-dpi", .data = &mt8183_conf, }, + { .compatible = "mediatek,mt8192-dpi", + .data = &mt8192_conf, + }, { }, };
Add compatible "mediatek,mt8192-dpi" for the mt8192 dpi.
Signed-off-by: Jitao Shi jitao.shi@mediatek.com --- .../devicetree/bindings/display/mediatek/mediatek,dpi.yaml | 1 + 1 file changed, 1 insertion(+)
diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.yaml index 6cdb734c91a9..2f566f19e6e0 100644 --- a/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.yaml +++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.yaml @@ -22,6 +22,7 @@ properties: - mediatek,mt7623-dpi - mediatek,mt8173-dpi - mediatek,mt8183-dpi + - mediatek,mt8192-dpi
reg: maxItems: 1
dri-devel@lists.freedesktop.org
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Jitao Shi