From e6c7e6216dc628ab7c627a6bcda7349715bbb67e Mon Sep 17 00:00:00 2001 From: Xinlei Lee Date: Tue, 8 Nov 2022 19:23:27 +0100 Subject: [PATCH] soc: mediatek: Add all settings to mtk_mmsys_ddp_dpi_fmt_config func MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit The difference between MT8186 and other ICs is that when modifying the output format, we need to modify the mmsys_base+0x400 register to take effect. So when setting the dpi output format, we need to call mtk_mmsys_ddp_dpi_fmt_config to set it to MT8186 synchronously. Commit a071e52f75d1 ("soc: mediatek: Add mmsys func to adapt to dpi output for MT8186") lacked some of the possible output formats and also had a wrong bitmask. Add the missing output formats and fix the bitmask. While at it, also update mtk_mmsys_ddp_dpi_fmt_config() to use generic formats, so that it is slightly easier to extend for other platforms. Fixes: a071e52f75d1 ("soc: mediatek: Add mmsys func to adapt to dpi output for MT8186") Signed-off-by: Xinlei Lee Reviewed-by: AngeloGioacchino Del Regno Reviewed-by: CK Hu Reviewed-by: Nícolas F. R. A. Prado Signed-off-by: Matthias Brugger --- drivers/soc/mediatek/mt8186-mmsys.h | 8 +++++--- drivers/soc/mediatek/mtk-mmsys.c | 27 ++++++++++++++++++++------ include/linux/soc/mediatek/mtk-mmsys.h | 7 +++++++ 3 files changed, 33 insertions(+), 9 deletions(-) diff --git a/drivers/soc/mediatek/mt8186-mmsys.h b/drivers/soc/mediatek/mt8186-mmsys.h index 09b1ccbc0093c..279d4138525bf 100644 --- a/drivers/soc/mediatek/mt8186-mmsys.h +++ b/drivers/soc/mediatek/mt8186-mmsys.h @@ -5,9 +5,11 @@ /* Values for DPI configuration in MMSYS address space */ #define MT8186_MMSYS_DPI_OUTPUT_FORMAT 0x400 -#define DPI_FORMAT_MASK 0x1 -#define DPI_RGB888_DDR_CON BIT(0) -#define DPI_RGB565_SDR_CON BIT(1) +#define MT8186_DPI_FORMAT_MASK GENMASK(1, 0) +#define MT8186_DPI_RGB888_SDR_CON 0 +#define MT8186_DPI_RGB888_DDR_CON 1 +#define MT8186_DPI_RGB565_SDR_CON 2 +#define MT8186_DPI_RGB565_DDR_CON 3 #define MT8186_MMSYS_OVL_CON 0xF04 #define MT8186_MMSYS_OVL0_CON_MASK 0x3 diff --git a/drivers/soc/mediatek/mtk-mmsys.c b/drivers/soc/mediatek/mtk-mmsys.c index d2c7a87aab87e..16cd924d8973a 100644 --- a/drivers/soc/mediatek/mtk-mmsys.c +++ b/drivers/soc/mediatek/mtk-mmsys.c @@ -238,12 +238,27 @@ static void mtk_mmsys_update_bits(struct mtk_mmsys *mmsys, u32 offset, u32 mask, void mtk_mmsys_ddp_dpi_fmt_config(struct device *dev, u32 val) { - if (val) - mtk_mmsys_update_bits(dev_get_drvdata(dev), MT8186_MMSYS_DPI_OUTPUT_FORMAT, - DPI_RGB888_DDR_CON, DPI_FORMAT_MASK); - else - mtk_mmsys_update_bits(dev_get_drvdata(dev), MT8186_MMSYS_DPI_OUTPUT_FORMAT, - DPI_RGB565_SDR_CON, DPI_FORMAT_MASK); + struct mtk_mmsys *mmsys = dev_get_drvdata(dev); + + switch (val) { + case MTK_DPI_RGB888_SDR_CON: + mtk_mmsys_update_bits(mmsys, MT8186_MMSYS_DPI_OUTPUT_FORMAT, + MT8186_DPI_FORMAT_MASK, MT8186_DPI_RGB888_SDR_CON); + break; + case MTK_DPI_RGB565_SDR_CON: + mtk_mmsys_update_bits(mmsys, MT8186_MMSYS_DPI_OUTPUT_FORMAT, + MT8186_DPI_FORMAT_MASK, MT8186_DPI_RGB565_SDR_CON); + break; + case MTK_DPI_RGB565_DDR_CON: + mtk_mmsys_update_bits(mmsys, MT8186_MMSYS_DPI_OUTPUT_FORMAT, + MT8186_DPI_FORMAT_MASK, MT8186_DPI_RGB565_DDR_CON); + break; + case MTK_DPI_RGB888_DDR_CON: + default: + mtk_mmsys_update_bits(mmsys, MT8186_MMSYS_DPI_OUTPUT_FORMAT, + MT8186_DPI_FORMAT_MASK, MT8186_DPI_RGB888_DDR_CON); + break; + } } EXPORT_SYMBOL_GPL(mtk_mmsys_ddp_dpi_fmt_config); diff --git a/include/linux/soc/mediatek/mtk-mmsys.h b/include/linux/soc/mediatek/mtk-mmsys.h index d2b02bb437683..b85f66db33e1f 100644 --- a/include/linux/soc/mediatek/mtk-mmsys.h +++ b/include/linux/soc/mediatek/mtk-mmsys.h @@ -9,6 +9,13 @@ enum mtk_ddp_comp_id; struct device; +enum mtk_dpi_out_format_con { + MTK_DPI_RGB888_SDR_CON, + MTK_DPI_RGB888_DDR_CON, + MTK_DPI_RGB565_SDR_CON, + MTK_DPI_RGB565_DDR_CON +}; + enum mtk_ddp_comp_id { DDP_COMPONENT_AAL0, DDP_COMPONENT_AAL1, -- 2.30.2