On Fri, 2022-07-01 at 11:15 +0800, xinlei.lee@xxxxxxxxxxxx wrote:
> From: Xinlei Lee <xinlei.lee@xxxxxxxxxxxx>
>
> Dpi output needs to adjust the output format to dual edge for MT8186.
>
> Signed-off-by: Jitao Shi <jitao.shi@xxxxxxxxxxxx>
> Signed-off-by: Xinlei Lee <xinlei.lee@xxxxxxxxxxxx>
> ---
> drivers/gpu/drm/mediatek/mtk_dpi.c | 21 +++++++++++++++++++++
> drivers/gpu/drm/mediatek/mtk_dpi_regs.h | 5 +++++
> 2 files changed, 26 insertions(+)
>
> diff --git a/drivers/gpu/drm/mediatek/mtk_dpi.c
> b/drivers/gpu/drm/mediatek/mtk_dpi.c
> index e61cd67b978f..82a5209a1dd8 100644
> --- a/drivers/gpu/drm/mediatek/mtk_dpi.c
> +++ b/drivers/gpu/drm/mediatek/mtk_dpi.c
> @@ -15,6 +15,7 @@
> #include <linux/pinctrl/consumer.h>
> #include <linux/platform_device.h>
> #include <linux/types.h>
> +#include <linux/soc/mediatek/mtk-mmsys.h>
>
Please reorder this.
> #include <video/videomode.h>
>
> @@ -28,6 +29,7 @@
> #include "mtk_disp_drv.h"
> #include "mtk_dpi_regs.h"
> #include "mtk_drm_ddp_comp.h"
> +#include "mtk_drm_drv.h"
>
> enum mtk_dpi_out_bit_num {
> MTK_DPI_OUT_BIT_NUM_8BITS,
> @@ -85,6 +87,7 @@ struct mtk_dpi {
> struct pinctrl_state *pins_dpi;
> u32 output_fmt;
> int refcount;
> + struct device *mmsys_dev;
> };
>
> static inline struct mtk_dpi *bridge_to_dpi(struct drm_bridge *b)
> @@ -125,6 +128,7 @@ struct mtk_dpi_conf {
> bool edge_sel_en;
> const u32 *output_fmts;
> u32 num_output_fmts;
> + bool rgb888_dual_enable;
> };
>
> static void mtk_dpi_mask(struct mtk_dpi *dpi, u32 offset, u32 val,
> u32 mask)
> @@ -393,6 +397,9 @@ static void mtk_dpi_dual_edge(struct mtk_dpi
> *dpi)
> mtk_dpi_mask(dpi, DPI_OUTPUT_SETTING,
> dpi->output_fmt ==
> MEDIA_BUS_FMT_RGB888_2X12_LE ?
> EDGE_SEL : 0, EDGE_SEL);
> + if (dpi->conf->rgb888_dual_enable)
> + mtk_mmsys_ddp_dpi_confing(dpi->mmsys_dev,
> DPI_RGB888_DDR_CON,
> + DPI_FORMAT_MASK, NULL);
> } else {
> mtk_dpi_mask(dpi, DPI_DDR_SETTING, DDR_EN | DDR_4PHASE,
> 0);
> }
> @@ -705,8 +712,10 @@ static int mtk_dpi_bind(struct device *dev,
> struct device *master, void *data)
> {
> struct mtk_dpi *dpi = dev_get_drvdata(dev);
> struct drm_device *drm_dev = data;
> + struct mtk_drm_private *priv = drm_dev->dev_private;
> int ret;
>
> + dpi->mmsys_dev = priv->mmsys_dev;
> ret = drm_simple_encoder_init(drm_dev, &dpi->encoder,
> DRM_MODE_ENCODER_TMDS);
> if (ret) {
> @@ -823,6 +832,15 @@ static const struct mtk_dpi_conf mt8192_conf = {
> .num_output_fmts = ARRAY_SIZE(mt8183_output_fmts),
> };
>
> +static const struct mtk_dpi_conf mt8186_conf = {
> + .cal_factor = mt8183_calculate_factor,
> + .reg_h_fre_con = 0xe0,
> + .max_clock_khz = 150000,
> + .output_fmts = mt8183_output_fmts,
> + .num_output_fmts = ARRAY_SIZE(mt8183_output_fmts),
> + .rgb888_dual_enable = true,
> +};
> +
please put this between 8183 and 8192.
> static int mtk_dpi_probe(struct platform_device *pdev)
> {
> struct device *dev = &pdev->dev;
> @@ -945,6 +963,9 @@ static const struct of_device_id mtk_dpi_of_ids[]
> = {
> { .compatible = "mediatek,mt8192-dpi",
> .data = &mt8192_conf,
> },
> + { .compatible = "mediatek,mt8186-dpi",
> + .data = &mt8186_conf,
> + },
ditto
> { },
> };
> MODULE_DEVICE_TABLE(of, mtk_dpi_of_ids);
> diff --git a/drivers/gpu/drm/mediatek/mtk_dpi_regs.h
> b/drivers/gpu/drm/mediatek/mtk_dpi_regs.h
> index 3a02fabe1662..24d4cdf3696b 100644
> --- a/drivers/gpu/drm/mediatek/mtk_dpi_regs.h
> +++ b/drivers/gpu/drm/mediatek/mtk_dpi_regs.h
> @@ -217,4 +217,9 @@
>
> #define EDGE_SEL_EN BIT(5)
> #define H_FRE_2N BIT(25)
> +
> +#define DPI_FORMAT_MASK 0x1
> +#define DPI_RGB888_DDR_CON BIT(0)
> +#define DPI_RGB565_SDR_CON BIT(1)
> +
> #endif /* __MTK_DPI_REGS_H */
