| Message ID | 20190214044243.129920-2-jitao.shi@mediatek.com |
|---|---|
| State | Not Applicable |
| Headers | show |
| Series | [1/3] drm/mediatek: move mipi_dsi_host_register to probe | expand |
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 >
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 --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,
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(-)