diff options
Diffstat (limited to 'drivers/gpu/drm/mediatek/mtk_dpi.c')
| -rw-r--r-- | drivers/gpu/drm/mediatek/mtk_dpi.c | 32 |
1 files changed, 29 insertions, 3 deletions
diff --git a/drivers/gpu/drm/mediatek/mtk_dpi.c b/drivers/gpu/drm/mediatek/mtk_dpi.c index b05f900d9322..bea91c81626e 100644 --- a/drivers/gpu/drm/mediatek/mtk_dpi.c +++ b/drivers/gpu/drm/mediatek/mtk_dpi.c @@ -120,6 +120,7 @@ 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; }; @@ -557,9 +558,23 @@ 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_info *info, + const struct drm_display_mode *mode) +{ + struct mtk_dpi *dpi = bridge_to_dpi(bridge); + + if (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, }; @@ -668,17 +683,26 @@ 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 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) @@ -751,10 +775,8 @@ static int mtk_dpi_probe(struct platform_device *pdev) } dpi->irq = platform_get_irq(pdev, 0); - if (dpi->irq <= 0) { - dev_err(dev, "Failed to get irq: %d\n", dpi->irq); + if (dpi->irq <= 0) return -EINVAL; - } ret = drm_of_find_panel_or_bridge(dev->of_node, 0, 0, NULL, &dpi->next_bridge); @@ -801,8 +823,12 @@ static const struct of_device_id mtk_dpi_of_ids[] = { { .compatible = "mediatek,mt8183-dpi", .data = &mt8183_conf, }, + { .compatible = "mediatek,mt8192-dpi", + .data = &mt8192_conf, + }, { }, }; +MODULE_DEVICE_TABLE(of, mtk_dpi_of_ids); struct platform_driver mtk_dpi_driver = { .probe = mtk_dpi_probe, |