Re: [PATCH v10 8/9] drm/mediatek: add DDP support for MT8183

[CK Hu <ck.hu@mediatek.com>]

On Thu, 2021-01-28 at 14:15 +0800, Hsin-Yi Wang wrote:
> On Thu, Jan 28, 2021 at 2:13 PM CK Hu <ck.hu@mediatek.com> wrote:
> >
> > Hi, Hsin-Yi:
> >
> > Modify the title's prefix to 'soc: mediatek:'
> >
> > On Wed, 2021-01-27 at 12:54 +0800, Hsin-Yi Wang wrote:
> > > From: Yongqiang Niu <yongqiang.niu@mediatek.com>
> > >
> > > Add DDP support for MT8183 SoC.
> > >
> > > Signed-off-by: Yongqiang Niu <yongqiang.niu@mediatek.com>
> > > Signed-off-by: Hsin-Yi Wang <hsinyi@chromium.org>
> > > ---
> > >  drivers/soc/mediatek/mtk-mutex.c | 50 ++++++++++++++++++++++++++++++++
> > >  1 file changed, 50 insertions(+)
> > >
> > > diff --git a/drivers/soc/mediatek/mtk-mutex.c b/drivers/soc/mediatek/mtk-mutex.c
> > > index f531b119da7a9..f64e9c33e85ad 100644
> > > --- a/drivers/soc/mediatek/mtk-mutex.c
> > > +++ b/drivers/soc/mediatek/mtk-mutex.c
> > > @@ -14,6 +14,8 @@
> > >
> > >  #define MT2701_MUTEX0_MOD0                   0x2c
> > >  #define MT2701_MUTEX0_SOF0                   0x30
> > > +#define MT8183_DISP_MUTEX0_MOD0                      0x30
> > > +#define MT8183_DISP_MUTEX0_SOF0                      0x2c
> >
> > Modify 'DISP_MUTEX' to 'MUTEX'
> >
> > >
> > >  #define DISP_REG_MUTEX_EN(n)                 (0x20 + 0x20 * (n))
> > >  #define DISP_REG_MUTEX(n)                    (0x24 + 0x20 * (n))
> > > @@ -37,6 +39,18 @@
> > >  #define MT8167_MUTEX_MOD_DISP_DITHER         15
> > >  #define MT8167_MUTEX_MOD_DISP_UFOE           16
> > >
> > > +#define MT8183_MUTEX_MOD_DISP_RDMA0          0
> > > +#define MT8183_MUTEX_MOD_DISP_RDMA1          1
> > > +#define MT8183_MUTEX_MOD_DISP_OVL0           9
> > > +#define MT8183_MUTEX_MOD_DISP_OVL0_2L                10
> > > +#define MT8183_MUTEX_MOD_DISP_OVL1_2L                11
> > > +#define MT8183_MUTEX_MOD_DISP_WDMA0          12
> > > +#define MT8183_MUTEX_MOD_DISP_COLOR0         13
> > > +#define MT8183_MUTEX_MOD_DISP_CCORR0         14
> > > +#define MT8183_MUTEX_MOD_DISP_AAL0           15
> > > +#define MT8183_MUTEX_MOD_DISP_GAMMA0         16
> > > +#define MT8183_MUTEX_MOD_DISP_DITHER0                17
> > > +
> > >  #define MT8173_MUTEX_MOD_DISP_OVL0           11
> > >  #define MT8173_MUTEX_MOD_DISP_OVL1           12
> > >  #define MT8173_MUTEX_MOD_DISP_RDMA0          13
> > > @@ -87,6 +101,12 @@
> > >  #define MT2712_MUTEX_SOF_DSI3                        6
> > >  #define MT8167_MUTEX_SOF_DPI0                        2
> > >  #define MT8167_MUTEX_SOF_DPI1                        3
> > > +#define MT8183_MUTEX_SOF_DSI0                        1
> > > +#define MT8183_MUTEX_SOF_DPI0                        2
> > > +
> > > +/* Add EOF setting so overlay hardware can receive frame done irq */
> > > +#define MT8183_MUTEX_EOF_DSI0                        (MT8183_MUTEX_SOF_DSI0 << 6)
> > > +#define MT8183_MUTEX_EOF_DPI0                        (MT8183_MUTEX_SOF_DPI0 << 6)
> > >
> 
> Hi CK, comment is added here. I can move to mt8183_mutex_sof if preferred.

I prefer to move comment to mt8183_mutex_sof.

> 
> > >  struct mtk_mutex {
> > >       int id;
> > > @@ -181,6 +201,20 @@ static const unsigned int mt8173_mutex_mod[DDP_COMPONENT_ID_MAX] = {
> > >       [DDP_COMPONENT_WDMA1] = MT8173_MUTEX_MOD_DISP_WDMA1,
> > >  };
> > >
> > > +static const unsigned int mt8183_mutex_mod[DDP_COMPONENT_ID_MAX] = {
> > > +     [DDP_COMPONENT_AAL0] = MT8183_MUTEX_MOD_DISP_AAL0,
> > > +     [DDP_COMPONENT_CCORR] = MT8183_MUTEX_MOD_DISP_CCORR0,
> > > +     [DDP_COMPONENT_COLOR0] = MT8183_MUTEX_MOD_DISP_COLOR0,
> > > +     [DDP_COMPONENT_DITHER] = MT8183_MUTEX_MOD_DISP_DITHER0,
> > > +     [DDP_COMPONENT_GAMMA] = MT8183_MUTEX_MOD_DISP_GAMMA0,
> > > +     [DDP_COMPONENT_OVL0] = MT8183_MUTEX_MOD_DISP_OVL0,
> > > +     [DDP_COMPONENT_OVL_2L0] = MT8183_MUTEX_MOD_DISP_OVL0_2L,
> > > +     [DDP_COMPONENT_OVL_2L1] = MT8183_MUTEX_MOD_DISP_OVL1_2L,
> > > +     [DDP_COMPONENT_RDMA0] = MT8183_MUTEX_MOD_DISP_RDMA0,
> > > +     [DDP_COMPONENT_RDMA1] = MT8183_MUTEX_MOD_DISP_RDMA1,
> > > +     [DDP_COMPONENT_WDMA0] = MT8183_MUTEX_MOD_DISP_WDMA0,
> > > +};
> > > +
> > >  static const unsigned int mt2712_mutex_sof[MUTEX_SOF_DSI3 + 1] = {
> > >       [MUTEX_SOF_SINGLE_MODE] = MUTEX_SOF_SINGLE_MODE,
> > >       [MUTEX_SOF_DSI0] = MUTEX_SOF_DSI0,
> > > @@ -198,6 +232,12 @@ static const unsigned int mt8167_mutex_sof[MUTEX_SOF_DSI3 + 1] = {
> > >       [MUTEX_SOF_DPI1] = MT8167_MUTEX_SOF_DPI1,
> > >  };
> > >
> > > +static const unsigned int mt8183_mutex_sof[MUTEX_SOF_DSI3 + 1] = {
> > > +     [MUTEX_SOF_SINGLE_MODE] = MUTEX_SOF_SINGLE_MODE,
> > > +     [MUTEX_SOF_DSI0] = MUTEX_SOF_DSI0 | MT8183_MUTEX_EOF_DSI0,
> > > +     [MUTEX_SOF_DPI0] = MT8183_MUTEX_SOF_DPI0 | MT8183_MUTEX_EOF_DPI0,
> >
> > According to discussion in [1], add comment for the odd EOF setting.
> >
> > [1]
> > https://patchwork.kernel.org/project/linux-mediatek/patch/1595469798-3824-8-git-send-email-yongqiang.niu@mediatek.com/
> >
> > Regards,
> > CK.
> >
> >
> > > +};
> > > +
> > >  static const struct mtk_mutex_data mt2701_mutex_driver_data = {
> > >       .mutex_mod = mt2701_mutex_mod,
> > >       .mutex_sof = mt2712_mutex_sof,
> > > @@ -227,6 +267,14 @@ static const struct mtk_mutex_data mt8173_mutex_driver_data = {
> > >       .mutex_sof_reg = MT2701_MUTEX0_SOF0,
> > >  };
> > >
> > > +static const struct mtk_mutex_data mt8183_mutex_driver_data = {
> > > +     .mutex_mod = mt8183_mutex_mod,
> > > +     .mutex_sof = mt8183_mutex_sof,
> > > +     .mutex_mod_reg = MT8183_DISP_MUTEX0_MOD0,
> > > +     .mutex_sof_reg = MT8183_DISP_MUTEX0_SOF0,
> > > +     .no_clk = true,
> > > +};
> > > +
> > >  struct mtk_mutex *mtk_mutex_get(struct device *dev)
> > >  {
> > >       struct mtk_mutex_ctx *mtx = dev_get_drvdata(dev);
> > > @@ -457,6 +505,8 @@ static const struct of_device_id mutex_driver_dt_match[] = {
> > >         .data = &mt8167_mutex_driver_data},
> > >       { .compatible = "mediatek,mt8173-disp-mutex",
> > >         .data = &mt8173_mutex_driver_data},
> > > +     { .compatible = "mediatek,mt8183-disp-mutex",
> > > +       .data = &mt8183_mutex_driver_data},
> > >       {},
> > >  };
> > >  MODULE_DEVICE_TABLE(of, mutex_driver_dt_match);
> >