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soc: mediatek: Add mmsys func to adapt to dpi output for MT8186

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Add mmsys func to manipulate dpi output format config for MT8186.

Co-developed-by: Jitao Shi <jitao.shi@mediatek.com>
Signed-off-by: Jitao Shi <jitao.shi@mediatek.com>
Signed-off-by: Xinlei Lee <xinlei.lee@mediatek.com>
Reviewed-by: Nís F. R. A. Prado <nfraprado@collabora.com>
Link: https://lore.kernel.org/all/1663161662-1598-2-git-send-email-xinlei.lee@mediatek.com/
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
This commit is contained in:
Xinlei Lee 2022-09-14 21:21:00 +08:00 committed by Matthias Brugger
parent 1b8501505f
commit b404cb4599
3 changed files with 28 additions and 0 deletions
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6
drivers/soc/mediatek/mt8186-mmsys.h
View file

@ -3,6 +3,12 @@
#ifndef __SOC_MEDIATEK_MT8186_MMSYS_H
#define __SOC_MEDIATEK_MT8186_MMSYS_H
/* 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_MMSYS_OVL_CON 0xF04
#define MT8186_MMSYS_OVL0_CON_MASK 0x3
#define MT8186_MMSYS_OVL0_2L_CON_MASK 0xC

20
drivers/soc/mediatek/mtk-mmsys.c
View file

@ -227,6 +227,26 @@ void mtk_mmsys_ddp_disconnect(struct device *dev,
}
EXPORT_SYMBOL_GPL(mtk_mmsys_ddp_disconnect);
static void mtk_mmsys_update_bits(struct mtk_mmsys *mmsys, u32 offset, u32 mask, u32 val)
{
u32 tmp;
tmp = readl_relaxed(mmsys->regs + offset);
tmp = (tmp & ~mask) | val;
writel_relaxed(tmp, mmsys->regs + offset);
}
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);
}
EXPORT_SYMBOL_GPL(mtk_mmsys_ddp_dpi_fmt_config);
static int mtk_mmsys_reset_update(struct reset_controller_dev *rcdev, unsigned long id,
bool assert)
{

2
include/linux/soc/mediatek/mtk-mmsys.h
View file

@ -65,4 +65,6 @@ void mtk_mmsys_ddp_disconnect(struct device *dev,
enum mtk_ddp_comp_id cur,
enum mtk_ddp_comp_id next);
void mtk_mmsys_ddp_dpi_fmt_config(struct device *dev, u32 val);
#endif /* __MTK_MMSYS_H */