Re: [v5 1/7] drm/mediatek: move mipi_dsi_host_register to probe
On Thu, Jun 27, 2019 at 11:11 PM CK Hu wrote:
>
> Hi, Jitao:
>
> On Thu, 2019-06-27 at 16:01 +0800, Jitao Shi wrote:
> > DSI panel driver need attach function which is inculde in
> > mipi_dsi_host_ops.
> >
> > If mipi_dsi_host_register is not in probe, dsi panel will
> > probe more delay.
> >
> > So move the mipi_dsi_host_register to probe from bind.
> >
> > Signed-off-by: Jitao Shi
> > Reviewed-by: CK Hu
>
> This version is different than v4, so please remove reviewed-by tag when
> this patch change. When I see a reviewed-by tag of mine, I would just
> skip review it again because I assume this patch is the same as previous
> version.
>
> For this version, I give still give it a
>
> Reviewed-by: CK Hu
>
> > ---
> > drivers/gpu/drm/mediatek/mtk_dsi.c | 53 +-
> > 1 file changed, 31 insertions(+), 22 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/mediatek/mtk_dsi.c
> > b/drivers/gpu/drm/mediatek/mtk_dsi.c
> > index b00eb2d2e086..595b3b047c7b 100644
> > --- a/drivers/gpu/drm/mediatek/mtk_dsi.c
> > +++ b/drivers/gpu/drm/mediatek/mtk_dsi.c
> > @@ -528,7 +528,7 @@ static s32 mtk_dsi_switch_to_cmd_mode(struct mtk_dsi
> > *dsi, u8 irq_flag, u32 t)
> >
> > static int mtk_dsi_poweron(struct mtk_dsi *dsi)
> > {
> > - struct device *dev = dsi->dev;
> > + struct device *dev = dsi->->host.dev;
single -> here
> > int ret;
> > u64 pixel_clock, total_bits;
> > u32 htotal, htotal_bits, bit_per_pixel, overhead_cycles,
> > overhead_bits;
> > @@ -1045,12 +1045,6 @@ static int mtk_dsi_bind(struct device *dev, struct
> > device *master, void *data)
> > return ret;
> > }
> >
> > - ret = mipi_dsi_host_register(&dsi->host);
> > - if (ret < 0) {
> > - dev_err(dev, "failed to register DSI host: %d\n", ret);
> > - goto err_ddp_comp_unregister;
> > - }
> > -
> > ret = mtk_dsi_create_conn_enc(drm, dsi);
> > if (ret) {
> > DRM_ERROR("Encoder create failed with %d\n", ret);
> > @@ -1060,8 +1054,6 @@ static int mtk_dsi_bind(struct device *dev, struct
> > device *master, void *data)
> > return 0;
> >
> > err_unregister:
> > - mipi_dsi_host_unregister(&dsi->host);
> > -err_ddp_comp_unregister:
> > mtk_ddp_comp_unregister(drm, &dsi->ddp_comp);
> > return ret;
> > }
> > @@ -1073,7 +1065,6 @@ static void mtk_dsi_unbind(struct device *dev, struct
> > device *master,
> > struct mtk_dsi *dsi = dev_get_drvdata(dev);
> >
> > mtk_dsi_destroy_conn_enc(dsi);
> > - mipi_dsi_host_unregister(&dsi->host);
> > mtk_ddp_comp_unregister(drm, &dsi->ddp_comp);
> > }
> >
> > @@ -1097,31 +1088,36 @@ static int mtk_dsi_probe(struct platform_device
> > *pdev)
> >
> > dsi->host.ops = &mtk_dsi_ops;
> > dsi->host.dev = dev;
> > + ret = mipi_dsi_host_register(&dsi->host);
> > + if (ret < 0) {
> > + dev_err(dev, "failed to register DSI host: %d\n", ret);
> > + return ret;
> > + }
> >
> > ret = drm_of_find_panel_or_bridge(dev->of_node, 0, 0,
> > &dsi->panel, &dsi->bridge);
> > if (ret)
> > - return ret;
> > + goto err_unregister_host;
> >
> > dsi->engine_clk = devm_clk_get(dev, "engine");
> > if (IS_ERR(dsi->engine_clk)) {
> > ret = PTR_ERR(dsi->engine_clk);
> > dev_err(dev, "Failed to get engine clock: %d\n", ret);
> > - return ret;
> > + goto err_unregister_host;
> > }
> >
> > dsi->digital_clk = devm_clk_get(dev, "digital");
> > if (IS_ERR(dsi->digital_clk)) {
> > ret = PTR_ERR(dsi->digital_clk);
> > dev_err(dev, "Failed to get digital clock: %d\n", ret);
> > - return ret;
> > + goto err_unregister_host;
> > }
> >
> > dsi->hs_clk = devm_clk_get(dev, "hs");
> > if (IS_ERR(dsi->hs_clk)) {
> > ret = PTR_ERR(dsi->hs_clk);
> > dev_err(dev, "Failed to get hs clock: %d\n", ret);
> > - return ret;
> > + goto err_unregister_host;
> > }
> >
> > regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> > @@ -1129,33 +1125,35 @@ static int mtk_dsi_probe(struct platform_device
> > *pdev)
> > if (IS_ERR(dsi->regs)) {
> > ret = PTR_ERR(dsi->regs);
> > dev_err(dev, "Failed to ioremap memory: %d\n", ret);
> > - return ret;
> > + goto err_unregister_host;
> > }
> >
> > dsi->phy = devm_phy_get(dev, "dphy");
> > if (IS_ERR(dsi->phy)) {
> > ret = PTR_ERR(dsi->phy);
> > dev_err(dev, "Failed to get MIPI-DPHY: %d\n", ret);
> > - return ret;
> > + goto err_unregister_host;
> > }
> >
> > comp_id = mtk_ddp_comp_get_id(dev->of_node, MTK_DSI);
> > if (comp_id < 0) {
> > dev_err(dev, "Failed to identify by ali
Re: [v5 1/7] drm/mediatek: move mipi_dsi_host_register to probe
Hi, Jitao:
On Thu, 2019-06-27 at 16:01 +0800, Jitao Shi wrote:
> DSI panel driver need attach function which is inculde in
> mipi_dsi_host_ops.
>
> If mipi_dsi_host_register is not in probe, dsi panel will
> probe more delay.
>
> So move the mipi_dsi_host_register to probe from bind.
>
> Signed-off-by: Jitao Shi
> Reviewed-by: CK Hu
This version is different than v4, so please remove reviewed-by tag when
this patch change. When I see a reviewed-by tag of mine, I would just
skip review it again because I assume this patch is the same as previous
version.
For this version, I give still give it a
Reviewed-by: CK Hu
> ---
> drivers/gpu/drm/mediatek/mtk_dsi.c | 53 +-
> 1 file changed, 31 insertions(+), 22 deletions(-)
>
> diff --git a/drivers/gpu/drm/mediatek/mtk_dsi.c
> b/drivers/gpu/drm/mediatek/mtk_dsi.c
> index b00eb2d2e086..595b3b047c7b 100644
> --- a/drivers/gpu/drm/mediatek/mtk_dsi.c
> +++ b/drivers/gpu/drm/mediatek/mtk_dsi.c
> @@ -528,7 +528,7 @@ static s32 mtk_dsi_switch_to_cmd_mode(struct mtk_dsi
> *dsi, u8 irq_flag, u32 t)
>
> static int mtk_dsi_poweron(struct mtk_dsi *dsi)
> {
> - struct device *dev = dsi->dev;
> + struct device *dev = dsi->->host.dev;
> int ret;
> u64 pixel_clock, total_bits;
> u32 htotal, htotal_bits, bit_per_pixel, overhead_cycles, overhead_bits;
> @@ -1045,12 +1045,6 @@ static int mtk_dsi_bind(struct device *dev, struct
> device *master, void *data)
> return ret;
> }
>
> - ret = mipi_dsi_host_register(&dsi->host);
> - if (ret < 0) {
> - dev_err(dev, "failed to register DSI host: %d\n", ret);
> - goto err_ddp_comp_unregister;
> - }
> -
> ret = mtk_dsi_create_conn_enc(drm, dsi);
> if (ret) {
> DRM_ERROR("Encoder create failed with %d\n", ret);
> @@ -1060,8 +1054,6 @@ static int mtk_dsi_bind(struct device *dev, struct
> device *master, void *data)
> return 0;
>
> err_unregister:
> - mipi_dsi_host_unregister(&dsi->host);
> -err_ddp_comp_unregister:
> mtk_ddp_comp_unregister(drm, &dsi->ddp_comp);
> return ret;
> }
> @@ -1073,7 +1065,6 @@ static void mtk_dsi_unbind(struct device *dev, struct
> device *master,
> struct mtk_dsi *dsi = dev_get_drvdata(dev);
>
> mtk_dsi_destroy_conn_enc(dsi);
> - mipi_dsi_host_unregister(&dsi->host);
> mtk_ddp_comp_unregister(drm, &dsi->ddp_comp);
> }
>
> @@ -1097,31 +1088,36 @@ static int mtk_dsi_probe(struct platform_device *pdev)
>
> dsi->host.ops = &mtk_dsi_ops;
> dsi->host.dev = dev;
> + ret = mipi_dsi_host_register(&dsi->host);
> + if (ret < 0) {
> + dev_err(dev, "failed to register DSI host: %d\n", ret);
> + return ret;
> + }
>
> ret = drm_of_find_panel_or_bridge(dev->of_node, 0, 0,
> &dsi->panel, &dsi->bridge);
> if (ret)
> - return ret;
> + goto err_unregister_host;
>
> dsi->engine_clk = devm_clk_get(dev, "engine");
> if (IS_ERR(dsi->engine_clk)) {
> ret = PTR_ERR(dsi->engine_clk);
> dev_err(dev, "Failed to get engine clock: %d\n", ret);
> - return ret;
> + goto err_unregister_host;
> }
>
> dsi->digital_clk = devm_clk_get(dev, "digital");
> if (IS_ERR(dsi->digital_clk)) {
> ret = PTR_ERR(dsi->digital_clk);
> dev_err(dev, "Failed to get digital clock: %d\n", ret);
> - return ret;
> + goto err_unregister_host;
> }
>
> dsi->hs_clk = devm_clk_get(dev, "hs");
> if (IS_ERR(dsi->hs_clk)) {
> ret = PTR_ERR(dsi->hs_clk);
> dev_err(dev, "Failed to get hs clock: %d\n", ret);
> - return ret;
> + goto err_unregister_host;
> }
>
> regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> @@ -1129,33 +1125,35 @@ static int mtk_dsi_probe(struct platform_device *pdev)
> if (IS_ERR(dsi->regs)) {
> ret = PTR_ERR(dsi->regs);
> dev_err(dev, "Failed to ioremap memory: %d\n", ret);
> - return ret;
> + goto err_unregister_host;
> }
>
> dsi->phy = devm_phy_get(dev, "dphy");
> if (IS_ERR(dsi->phy)) {
> ret = PTR_ERR(dsi->phy);
> dev_err(dev, "Failed to get MIPI-DPHY: %d\n", ret);
> - return ret;
> + goto err_unregister_host;
> }
>
> comp_id = mtk_ddp_comp_get_id(dev->of_node, MTK_DSI);
> if (comp_id < 0) {
> dev_err(dev, "Failed to identify by alias: %d\n", comp_id);
> - return comp_id;
> + ret = comp_id;
> + goto err_unregister_host;
> }
>
> ret = mtk_ddp_comp_init(dev, dev->of_node, &dsi->ddp_comp, comp_id,
> &mtk_dsi_funcs);
> if (ret) {
> dev_err(dev, "Fa
