+Pi-Hsun Shih
On Mon, Feb 8, 2021 at 9:42 AM Jitao Shi jitao.shi@mediatek.com wrote:
Add per-platform max clock rate check in mtk_dpi_bridge_mode_valid.
Signed-off-by: Jitao Shi jitao.shi@mediatek.com
I believe this patch (and the following) were actually authored by Pi-Hsun: https://crrev.com/c/2628812 . Would be best to keep the author information (unless I'm missing something of course).
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)
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