diff mbox series

[2/3] drm/mediatek: CMDQ reg address of mt8173 is different with mt2701

Message ID 20190214044243.129920-2-jitao.shi@mediatek.com (mailing list archive)
State New, archived
Headers show
Series [1/3] drm/mediatek: move mipi_dsi_host_register to probe | expand

Commit Message

Jitao Shi Feb. 14, 2019, 4:42 a.m. UTC 
Config the different CMDQ reg address in driver data.

Signed-off-by: Jitao Shi <jitao.shi@mediatek.com>
---
 drivers/gpu/drm/mediatek/mtk_dsi.c | 39 ++++++++++++++++++++++++------
 1 file changed, 31 insertions(+), 8 deletions(-)

Comments

kernel test robot via dri-devel Feb. 14, 2019, 5:48 a.m. UTC | #1 
On Thu, Feb 14, 2019 at 12:42 PM Jitao Shi <jitao.shi@mediatek.com> wrote:
>
> Config the different CMDQ reg address in driver data.
>
> Signed-off-by: Jitao Shi <jitao.shi@mediatek.com>
> ---
>  drivers/gpu/drm/mediatek/mtk_dsi.c | 39 ++++++++++++++++++++++++------
>  1 file changed, 31 insertions(+), 8 deletions(-)
>
> diff --git a/drivers/gpu/drm/mediatek/mtk_dsi.c b/drivers/gpu/drm/mediatek/mtk_dsi.c
> index 93fa255b4aad..80db02a25cb0 100644
> --- a/drivers/gpu/drm/mediatek/mtk_dsi.c
> +++ b/drivers/gpu/drm/mediatek/mtk_dsi.c
> @@ -156,6 +156,10 @@
>
>  struct phy;
>
> +struct mtk_dsi_driver_data {
> +       const u32 reg_cmdq_off;
> +};
> +
>  struct mtk_dsi {
>         struct mtk_ddp_comp ddp_comp;
>         struct device *dev;
> @@ -182,6 +186,7 @@ struct mtk_dsi {
>         bool enabled;
>         u32 irq_data;
>         wait_queue_head_t irq_wait_queue;
> +       struct mtk_dsi_driver_data *driver_data;
>  };
>
>  static inline struct mtk_dsi *encoder_to_dsi(struct drm_encoder *e)
> @@ -934,6 +939,7 @@ static void mtk_dsi_cmdq(struct mtk_dsi *dsi, const struct mipi_dsi_msg *msg)
>         const char *tx_buf = msg->tx_buf;
>         u8 config, cmdq_size, cmdq_off, type = msg->type;
>         u32 reg_val, cmdq_mask, i;
> +       u32 reg_cmdq_off = dsi->driver_data->reg_cmdq_off;
>
>         if (MTK_DSI_HOST_IS_READ(type))
>                 config = BTA;
> @@ -953,9 +959,11 @@ static void mtk_dsi_cmdq(struct mtk_dsi *dsi, const struct mipi_dsi_msg *msg)
>         }
>
>         for (i = 0; i < msg->tx_len; i++)
> -               writeb(tx_buf[i], dsi->regs + DSI_CMDQ0 + cmdq_off + i);
> +               mtk_dsi_mask(dsi, (reg_cmdq_off + cmdq_off + i) & (~0x3U),
> +                            (0xffUL << (((i + cmdq_off) & 3U) * 8U)),
> +                            tx_buf[i] << (((i + cmdq_off) & 3U) * 8U));

I found the writeb call _much_ clearer ... Either switch back to that,
or create a new mtk_disk_mask_byte function maybe?

>
> -       mtk_dsi_mask(dsi, DSI_CMDQ0, cmdq_mask, reg_val);
> +       mtk_dsi_mask(dsi, reg_cmdq_off, cmdq_mask, reg_val);

You're removing DSI_CMDQ0 usage in this patch, so remove the #define
in this patch too (instead of doing that in 3/3).

>         mtk_dsi_mask(dsi, DSI_CMDQ_SIZE, CMDQ_SIZE, cmdq_size);
>  }
>
> @@ -1074,10 +1082,27 @@ static const struct component_ops mtk_dsi_component_ops = {
>         .unbind = mtk_dsi_unbind,
>  };
>
> +static const struct mtk_dsi_driver_data mt8173_dsi_driver_data = {
> +       .reg_cmdq_off = 0x200,
> +};
> +
> +static const struct mtk_dsi_driver_data mt2701_dsi_driver_data = {
> +       .reg_cmdq_off = 0x180,
> +};
> +
> +static const struct of_device_id mtk_dsi_of_match[] = {
> +       { .compatible = "mediatek,mt2701-dsi",
> +         .data = &mt2701_dsi_driver_data },
> +       { .compatible = "mediatek,mt8173-dsi",
> +         .data = &mt8173_dsi_driver_data },
> +       { },
> +};
> +
>  static int mtk_dsi_probe(struct platform_device *pdev)
>  {
>         struct mtk_dsi *dsi;
>         struct device *dev = &pdev->dev;
> +       const struct of_device_id *of_id;
>         struct resource *regs;
>         int irq_num;
>         int comp_id;
> @@ -1101,6 +1126,10 @@ static int mtk_dsi_probe(struct platform_device *pdev)
>         if (ret)
>                 goto err_unregister_host;
>
> +       of_id = of_match_device(mtk_dsi_of_match, &pdev->dev);
> +       dsi->driver_data = (struct mtk_dsi_driver_data *)
> +                           of_id->data;

This fits in 80 chars. Also, of_id->data is a void*, so no cast needed.

> +
>         dsi->engine_clk = devm_clk_get(dev, "engine");
>         if (IS_ERR(dsi->engine_clk)) {
>                 ret = PTR_ERR(dsi->engine_clk);
> @@ -1194,12 +1223,6 @@ static int mtk_dsi_remove(struct platform_device *pdev)
>         return 0;
>  }
>
> -static const struct of_device_id mtk_dsi_of_match[] = {
> -       { .compatible = "mediatek,mt2701-dsi" },
> -       { .compatible = "mediatek,mt8173-dsi" },
> -       { },
> -};

Any reason you moved this up?

> -
>  struct platform_driver mtk_dsi_driver = {
>         .probe = mtk_dsi_probe,
>         .remove = mtk_dsi_remove,
> --
> 2.20.1
>
Jitao Shi Feb. 17, 2019, 3:17 p.m. UTC | #2 
On Thu, 2019-02-14 at 13:48 +0800, Nicolas Boichat wrote:
> On Thu, Feb 14, 2019 at 12:42 PM Jitao Shi <jitao.shi@mediatek.com> wrote:
> >
> > Config the different CMDQ reg address in driver data.
> >
> > Signed-off-by: Jitao Shi <jitao.shi@mediatek.com>
> > ---
> >  drivers/gpu/drm/mediatek/mtk_dsi.c | 39 ++++++++++++++++++++++++------
> >  1 file changed, 31 insertions(+), 8 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/mediatek/mtk_dsi.c b/drivers/gpu/drm/mediatek/mtk_dsi.c
> > index 93fa255b4aad..80db02a25cb0 100644
> > --- a/drivers/gpu/drm/mediatek/mtk_dsi.c
> > +++ b/drivers/gpu/drm/mediatek/mtk_dsi.c
> > @@ -156,6 +156,10 @@
> >
> >  struct phy;
> >
> > +struct mtk_dsi_driver_data {
> > +       const u32 reg_cmdq_off;
> > +};
> > +
> >  struct mtk_dsi {
> >         struct mtk_ddp_comp ddp_comp;
> >         struct device *dev;
> > @@ -182,6 +186,7 @@ struct mtk_dsi {
> >         bool enabled;
> >         u32 irq_data;
> >         wait_queue_head_t irq_wait_queue;
> > +       struct mtk_dsi_driver_data *driver_data;
> >  };
> >
> >  static inline struct mtk_dsi *encoder_to_dsi(struct drm_encoder *e)
> > @@ -934,6 +939,7 @@ static void mtk_dsi_cmdq(struct mtk_dsi *dsi, const struct mipi_dsi_msg *msg)
> >         const char *tx_buf = msg->tx_buf;
> >         u8 config, cmdq_size, cmdq_off, type = msg->type;
> >         u32 reg_val, cmdq_mask, i;
> > +       u32 reg_cmdq_off = dsi->driver_data->reg_cmdq_off;
> >
> >         if (MTK_DSI_HOST_IS_READ(type))
> >                 config = BTA;
> > @@ -953,9 +959,11 @@ static void mtk_dsi_cmdq(struct mtk_dsi *dsi, const struct mipi_dsi_msg *msg)
> >         }
> >
> >         for (i = 0; i < msg->tx_len; i++)
> > -               writeb(tx_buf[i], dsi->regs + DSI_CMDQ0 + cmdq_off + i);
> > +               mtk_dsi_mask(dsi, (reg_cmdq_off + cmdq_off + i) & (~0x3U),
> > +                            (0xffUL << (((i + cmdq_off) & 3U) * 8U)),
> > +                            tx_buf[i] << (((i + cmdq_off) & 3U) * 8U));
> 
> I found the writeb call _much_ clearer ... Either switch back to that,
> or create a new mtk_disk_mask_byte function maybe?

I'll fix it next version.

> 
> >
> > -       mtk_dsi_mask(dsi, DSI_CMDQ0, cmdq_mask, reg_val);
> > +       mtk_dsi_mask(dsi, reg_cmdq_off, cmdq_mask, reg_val);
> 
> You're removing DSI_CMDQ0 usage in this patch, so remove the #define
> in this patch too (instead of doing that in 3/3).

I'll fix it next version.
> 
> >         mtk_dsi_mask(dsi, DSI_CMDQ_SIZE, CMDQ_SIZE, cmdq_size);
> >  }
> >
> > @@ -1074,10 +1082,27 @@ static const struct component_ops mtk_dsi_component_ops = {
> >         .unbind = mtk_dsi_unbind,
> >  };
> >
> > +static const struct mtk_dsi_driver_data mt8173_dsi_driver_data = {
> > +       .reg_cmdq_off = 0x200,
> > +};
> > +
> > +static const struct mtk_dsi_driver_data mt2701_dsi_driver_data = {
> > +       .reg_cmdq_off = 0x180,
> > +};
> > +
> > +static const struct of_device_id mtk_dsi_of_match[] = {
> > +       { .compatible = "mediatek,mt2701-dsi",
> > +         .data = &mt2701_dsi_driver_data },
> > +       { .compatible = "mediatek,mt8173-dsi",
> > +         .data = &mt8173_dsi_driver_data },
> > +       { },
> > +};
> > +
> >  static int mtk_dsi_probe(struct platform_device *pdev)
> >  {
> >         struct mtk_dsi *dsi;
> >         struct device *dev = &pdev->dev;
> > +       const struct of_device_id *of_id;
> >         struct resource *regs;
> >         int irq_num;
> >         int comp_id;
> > @@ -1101,6 +1126,10 @@ static int mtk_dsi_probe(struct platform_device *pdev)
> >         if (ret)
> >                 goto err_unregister_host;
> >
> > +       of_id = of_match_device(mtk_dsi_of_match, &pdev->dev);
> > +       dsi->driver_data = (struct mtk_dsi_driver_data *)
> > +                           of_id->data;
> 
> This fits in 80 chars. Also, of_id->data is a void*, so no cast needed.

I'll fix it next version.

> 
> > +
> >         dsi->engine_clk = devm_clk_get(dev, "engine");
> >         if (IS_ERR(dsi->engine_clk)) {
> >                 ret = PTR_ERR(dsi->engine_clk);
> > @@ -1194,12 +1223,6 @@ static int mtk_dsi_remove(struct platform_device *pdev)
> >         return 0;
> >  }
> >
> > -static const struct of_device_id mtk_dsi_of_match[] = {
> > -       { .compatible = "mediatek,mt2701-dsi" },
> > -       { .compatible = "mediatek,mt8173-dsi" },
> > -       { },
> > -};
> 
> Any reason you moved this up?

of_match_device is called by mtk_dsi_probe.

Best regards
Jitao
> 
> > -
> >  struct platform_driver mtk_dsi_driver = {
> >         .probe = mtk_dsi_probe,
> >         .remove = mtk_dsi_remove,
> > --
> > 2.20.1
> >
diff mbox series

Patch

diff --git a/drivers/gpu/drm/mediatek/mtk_dsi.c b/drivers/gpu/drm/mediatek/mtk_dsi.c
index 93fa255b4aad..80db02a25cb0 100644
--- a/drivers/gpu/drm/mediatek/mtk_dsi.c
+++ b/drivers/gpu/drm/mediatek/mtk_dsi.c
@@ -156,6 +156,10 @@ 
 
 struct phy;
 
+struct mtk_dsi_driver_data {
+	const u32 reg_cmdq_off;
+};
+
 struct mtk_dsi {
 	struct mtk_ddp_comp ddp_comp;
 	struct device *dev;
@@ -182,6 +186,7 @@  struct mtk_dsi {
 	bool enabled;
 	u32 irq_data;
 	wait_queue_head_t irq_wait_queue;
+	struct mtk_dsi_driver_data *driver_data;
 };
 
 static inline struct mtk_dsi *encoder_to_dsi(struct drm_encoder *e)
@@ -934,6 +939,7 @@  static void mtk_dsi_cmdq(struct mtk_dsi *dsi, const struct mipi_dsi_msg *msg)
 	const char *tx_buf = msg->tx_buf;
 	u8 config, cmdq_size, cmdq_off, type = msg->type;
 	u32 reg_val, cmdq_mask, i;
+	u32 reg_cmdq_off = dsi->driver_data->reg_cmdq_off;
 
 	if (MTK_DSI_HOST_IS_READ(type))
 		config = BTA;
@@ -953,9 +959,11 @@  static void mtk_dsi_cmdq(struct mtk_dsi *dsi, const struct mipi_dsi_msg *msg)
 	}
 
 	for (i = 0; i < msg->tx_len; i++)
-		writeb(tx_buf[i], dsi->regs + DSI_CMDQ0 + cmdq_off + i);
+		mtk_dsi_mask(dsi, (reg_cmdq_off + cmdq_off + i) & (~0x3U),
+			     (0xffUL << (((i + cmdq_off) & 3U) * 8U)),
+			     tx_buf[i] << (((i + cmdq_off) & 3U) * 8U));
 
-	mtk_dsi_mask(dsi, DSI_CMDQ0, cmdq_mask, reg_val);
+	mtk_dsi_mask(dsi, reg_cmdq_off, cmdq_mask, reg_val);
 	mtk_dsi_mask(dsi, DSI_CMDQ_SIZE, CMDQ_SIZE, cmdq_size);
 }
 
@@ -1074,10 +1082,27 @@  static const struct component_ops mtk_dsi_component_ops = {
 	.unbind = mtk_dsi_unbind,
 };
 
+static const struct mtk_dsi_driver_data mt8173_dsi_driver_data = {
+	.reg_cmdq_off = 0x200,
+};
+
+static const struct mtk_dsi_driver_data mt2701_dsi_driver_data = {
+	.reg_cmdq_off = 0x180,
+};
+
+static const struct of_device_id mtk_dsi_of_match[] = {
+	{ .compatible = "mediatek,mt2701-dsi",
+	  .data = &mt2701_dsi_driver_data },
+	{ .compatible = "mediatek,mt8173-dsi",
+	  .data = &mt8173_dsi_driver_data },
+	{ },
+};
+
 static int mtk_dsi_probe(struct platform_device *pdev)
 {
 	struct mtk_dsi *dsi;
 	struct device *dev = &pdev->dev;
+	const struct of_device_id *of_id;
 	struct resource *regs;
 	int irq_num;
 	int comp_id;
@@ -1101,6 +1126,10 @@  static int mtk_dsi_probe(struct platform_device *pdev)
 	if (ret)
 		goto err_unregister_host;
 
+	of_id = of_match_device(mtk_dsi_of_match, &pdev->dev);
+	dsi->driver_data = (struct mtk_dsi_driver_data *)
+			    of_id->data;
+
 	dsi->engine_clk = devm_clk_get(dev, "engine");
 	if (IS_ERR(dsi->engine_clk)) {
 		ret = PTR_ERR(dsi->engine_clk);
@@ -1194,12 +1223,6 @@  static int mtk_dsi_remove(struct platform_device *pdev)
 	return 0;
 }
 
-static const struct of_device_id mtk_dsi_of_match[] = {
-	{ .compatible = "mediatek,mt2701-dsi" },
-	{ .compatible = "mediatek,mt8173-dsi" },
-	{ },
-};
-
 struct platform_driver mtk_dsi_driver = {
 	.probe = mtk_dsi_probe,
 	.remove = mtk_dsi_remove,