| Message ID | 87plxanvx1.wl-kuninori.morimoto.gx@renesas.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [1/4] gpu: drm: replace of_graph_get_next_endpoint() | expand |
Hi Morimoto-san, Thank you for the patch. On Tue, Feb 06, 2024 at 02:55:38AM +0000, Kuninori Morimoto wrote: > From DT point of view, in general, drivers should be asking for a > specific port number because their function is fixed in the binding. > > of_graph_get_next_endpoint() doesn't match to this concept. > > Simply replace > > - of_graph_get_next_endpoint(xxx, NULL); > + of_graph_get_endpoint_by_regs(xxx, 0, -1); > > Link: https://lore.kernel.org/r/20240202174941.GA310089-robh@kernel.org > Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> > --- > drivers/media/platform/atmel/atmel-isi.c | 4 ++-- > drivers/media/platform/intel/pxa_camera.c | 2 +- > drivers/media/platform/samsung/exynos4-is/fimc-is.c | 2 +- > drivers/media/platform/samsung/exynos4-is/mipi-csis.c | 2 +- > drivers/media/platform/st/stm32/stm32-dcmi.c | 4 ++-- > drivers/media/platform/ti/davinci/vpif.c | 3 +-- > 6 files changed, 8 insertions(+), 9 deletions(-) > > diff --git a/drivers/media/platform/atmel/atmel-isi.c b/drivers/media/platform/atmel/atmel-isi.c > index 4046212d48b4..f615aee85968 100644 > --- a/drivers/media/platform/atmel/atmel-isi.c > +++ b/drivers/media/platform/atmel/atmel-isi.c > @@ -831,7 +831,7 @@ static int atmel_isi_parse_dt(struct atmel_isi *isi, > isi->pdata.full_mode = 1; > isi->pdata.frate = ISI_CFG1_FRATE_CAPTURE_ALL; > > - np = of_graph_get_next_endpoint(np, NULL); > + np = of_graph_get_endpoint_by_regs(np, 0, -1); > if (!np) { > dev_err(&pdev->dev, "Could not find the endpoint\n"); > return -EINVAL; > @@ -1155,7 +1155,7 @@ static int isi_graph_init(struct atmel_isi *isi) > struct device_node *ep; > int ret; > > - ep = of_graph_get_next_endpoint(isi->dev->of_node, NULL); > + ep = of_graph_get_endpoint_by_regs(isi->dev->of_node, 0, -1); > if (!ep) > return -EINVAL; > > diff --git a/drivers/media/platform/intel/pxa_camera.c b/drivers/media/platform/intel/pxa_camera.c > index 59b89e421dc2..d904952bf00e 100644 > --- a/drivers/media/platform/intel/pxa_camera.c > +++ b/drivers/media/platform/intel/pxa_camera.c > @@ -2207,7 +2207,7 @@ static int pxa_camera_pdata_from_dt(struct device *dev, > pcdev->mclk = mclk_rate; > } > > - np = of_graph_get_next_endpoint(np, NULL); > + np = of_graph_get_endpoint_by_regs(np, 0, -1); > if (!np) { > dev_err(dev, "could not find endpoint\n"); > return -EINVAL; > diff --git a/drivers/media/platform/samsung/exynos4-is/fimc-is.c b/drivers/media/platform/samsung/exynos4-is/fimc-is.c > index a08c87ef6e2d..39aab667910d 100644 > --- a/drivers/media/platform/samsung/exynos4-is/fimc-is.c > +++ b/drivers/media/platform/samsung/exynos4-is/fimc-is.c > @@ -175,7 +175,7 @@ static int fimc_is_parse_sensor_config(struct fimc_is *is, unsigned int index, > return -EINVAL; > } > > - ep = of_graph_get_next_endpoint(node, NULL); > + ep = of_graph_get_endpoint_by_regs(node, 0, -1); > if (!ep) > return -ENXIO; > > diff --git a/drivers/media/platform/samsung/exynos4-is/mipi-csis.c b/drivers/media/platform/samsung/exynos4-is/mipi-csis.c > index 686ca8753ba2..3f8bea2e3934 100644 > --- a/drivers/media/platform/samsung/exynos4-is/mipi-csis.c > +++ b/drivers/media/platform/samsung/exynos4-is/mipi-csis.c > @@ -728,7 +728,7 @@ static int s5pcsis_parse_dt(struct platform_device *pdev, > &state->max_num_lanes)) > return -EINVAL; > > - node = of_graph_get_next_endpoint(node, NULL); > + node = of_graph_get_endpoint_by_regs(node, 0, -1); This is not correct, see Documentation/devicetree/bindings/media/samsung,exynos4210-csis.yaml. > if (!node) { > dev_err(&pdev->dev, "No port node at %pOF\n", > pdev->dev.of_node); > diff --git a/drivers/media/platform/st/stm32/stm32-dcmi.c b/drivers/media/platform/st/stm32/stm32-dcmi.c > index 8cb4fdcae137..4c00aae013af 100644 > --- a/drivers/media/platform/st/stm32/stm32-dcmi.c > +++ b/drivers/media/platform/st/stm32/stm32-dcmi.c > @@ -1856,7 +1856,7 @@ static int dcmi_graph_init(struct stm32_dcmi *dcmi) > struct device_node *ep; > int ret; > > - ep = of_graph_get_next_endpoint(dcmi->dev->of_node, NULL); > + ep = of_graph_get_endpoint_by_regs(dcmi->dev->of_node, 0, -1); > if (!ep) { > dev_err(dcmi->dev, "Failed to get next endpoint\n"); > return -EINVAL; > @@ -1915,7 +1915,7 @@ static int dcmi_probe(struct platform_device *pdev) > "Could not get reset control\n"); > > /* Get bus characteristics from devicetree */ > - np = of_graph_get_next_endpoint(np, NULL); > + np = of_graph_get_endpoint_by_regs(np, 0, -1); > if (!np) { > dev_err(&pdev->dev, "Could not find the endpoint\n"); > return -ENODEV; > diff --git a/drivers/media/platform/ti/davinci/vpif.c b/drivers/media/platform/ti/davinci/vpif.c > index 63cdfed37bc9..f4e1fa76bf37 100644 > --- a/drivers/media/platform/ti/davinci/vpif.c > +++ b/drivers/media/platform/ti/davinci/vpif.c > @@ -465,8 +465,7 @@ static int vpif_probe(struct platform_device *pdev) > * so their devices need to be registered manually here > * for their legacy platform_drivers to work. > */ > - endpoint = of_graph_get_next_endpoint(pdev->dev.of_node, > - endpoint); > + endpoint = of_graph_get_endpoint_by_regs(pdev->dev.of_node, 0, -1); > if (!endpoint) > return 0; > of_node_put(endpoint);
Hi Laurent Thank you for your review > > diff --git a/drivers/media/platform/samsung/exynos4-is/mipi-csis.c b/drivers/media/platform/samsung/exynos4-is/mipi-csis.c > > index 686ca8753ba2..3f8bea2e3934 100644 > > --- a/drivers/media/platform/samsung/exynos4-is/mipi-csis.c > > +++ b/drivers/media/platform/samsung/exynos4-is/mipi-csis.c > > @@ -728,7 +728,7 @@ static int s5pcsis_parse_dt(struct platform_device *pdev, > > &state->max_num_lanes)) > > return -EINVAL; > > > > - node = of_graph_get_next_endpoint(node, NULL); > > + node = of_graph_get_endpoint_by_regs(node, 0, -1); > > This is not correct, see > Documentation/devicetree/bindings/media/samsung,exynos4210-csis.yaml. Hmm... Then, It can be like this ? + node = of_graph_get_endpoint_by_regs(node, -1, -1); Thank you for your help !! Best regards --- Renesas Electronics Ph.D. Kuninori Morimoto
On Tue, Feb 06, 2024 at 11:45:58PM +0000, Kuninori Morimoto wrote: > > Hi Laurent > > Thank you for your review > > > > diff --git a/drivers/media/platform/samsung/exynos4-is/mipi-csis.c b/drivers/media/platform/samsung/exynos4-is/mipi-csis.c > > > index 686ca8753ba2..3f8bea2e3934 100644 > > > --- a/drivers/media/platform/samsung/exynos4-is/mipi-csis.c > > > +++ b/drivers/media/platform/samsung/exynos4-is/mipi-csis.c > > > @@ -728,7 +728,7 @@ static int s5pcsis_parse_dt(struct platform_device *pdev, > > > &state->max_num_lanes)) > > > return -EINVAL; > > > > > > - node = of_graph_get_next_endpoint(node, NULL); > > > + node = of_graph_get_endpoint_by_regs(node, 0, -1); > > > > This is not correct, see > > Documentation/devicetree/bindings/media/samsung,exynos4210-csis.yaml. > > Hmm... Then, It can be like this ? > > + node = of_graph_get_endpoint_by_regs(node, -1, -1); I suppose that would work, even if we should really try not to pass -1 for the port. Rob, any opinion ?
diff --git a/drivers/media/platform/atmel/atmel-isi.c b/drivers/media/platform/atmel/atmel-isi.c index 4046212d48b4..f615aee85968 100644 --- a/drivers/media/platform/atmel/atmel-isi.c +++ b/drivers/media/platform/atmel/atmel-isi.c @@ -831,7 +831,7 @@ static int atmel_isi_parse_dt(struct atmel_isi *isi, isi->pdata.full_mode = 1; isi->pdata.frate = ISI_CFG1_FRATE_CAPTURE_ALL; - np = of_graph_get_next_endpoint(np, NULL); + np = of_graph_get_endpoint_by_regs(np, 0, -1); if (!np) { dev_err(&pdev->dev, "Could not find the endpoint\n"); return -EINVAL; @@ -1155,7 +1155,7 @@ static int isi_graph_init(struct atmel_isi *isi) struct device_node *ep; int ret; - ep = of_graph_get_next_endpoint(isi->dev->of_node, NULL); + ep = of_graph_get_endpoint_by_regs(isi->dev->of_node, 0, -1); if (!ep) return -EINVAL; diff --git a/drivers/media/platform/intel/pxa_camera.c b/drivers/media/platform/intel/pxa_camera.c index 59b89e421dc2..d904952bf00e 100644 --- a/drivers/media/platform/intel/pxa_camera.c +++ b/drivers/media/platform/intel/pxa_camera.c @@ -2207,7 +2207,7 @@ static int pxa_camera_pdata_from_dt(struct device *dev, pcdev->mclk = mclk_rate; } - np = of_graph_get_next_endpoint(np, NULL); + np = of_graph_get_endpoint_by_regs(np, 0, -1); if (!np) { dev_err(dev, "could not find endpoint\n"); return -EINVAL; diff --git a/drivers/media/platform/samsung/exynos4-is/fimc-is.c b/drivers/media/platform/samsung/exynos4-is/fimc-is.c index a08c87ef6e2d..39aab667910d 100644 --- a/drivers/media/platform/samsung/exynos4-is/fimc-is.c +++ b/drivers/media/platform/samsung/exynos4-is/fimc-is.c @@ -175,7 +175,7 @@ static int fimc_is_parse_sensor_config(struct fimc_is *is, unsigned int index, return -EINVAL; } - ep = of_graph_get_next_endpoint(node, NULL); + ep = of_graph_get_endpoint_by_regs(node, 0, -1); if (!ep) return -ENXIO; diff --git a/drivers/media/platform/samsung/exynos4-is/mipi-csis.c b/drivers/media/platform/samsung/exynos4-is/mipi-csis.c index 686ca8753ba2..3f8bea2e3934 100644 --- a/drivers/media/platform/samsung/exynos4-is/mipi-csis.c +++ b/drivers/media/platform/samsung/exynos4-is/mipi-csis.c @@ -728,7 +728,7 @@ static int s5pcsis_parse_dt(struct platform_device *pdev, &state->max_num_lanes)) return -EINVAL; - node = of_graph_get_next_endpoint(node, NULL); + node = of_graph_get_endpoint_by_regs(node, 0, -1); if (!node) { dev_err(&pdev->dev, "No port node at %pOF\n", pdev->dev.of_node); diff --git a/drivers/media/platform/st/stm32/stm32-dcmi.c b/drivers/media/platform/st/stm32/stm32-dcmi.c index 8cb4fdcae137..4c00aae013af 100644 --- a/drivers/media/platform/st/stm32/stm32-dcmi.c +++ b/drivers/media/platform/st/stm32/stm32-dcmi.c @@ -1856,7 +1856,7 @@ static int dcmi_graph_init(struct stm32_dcmi *dcmi) struct device_node *ep; int ret; - ep = of_graph_get_next_endpoint(dcmi->dev->of_node, NULL); + ep = of_graph_get_endpoint_by_regs(dcmi->dev->of_node, 0, -1); if (!ep) { dev_err(dcmi->dev, "Failed to get next endpoint\n"); return -EINVAL; @@ -1915,7 +1915,7 @@ static int dcmi_probe(struct platform_device *pdev) "Could not get reset control\n"); /* Get bus characteristics from devicetree */ - np = of_graph_get_next_endpoint(np, NULL); + np = of_graph_get_endpoint_by_regs(np, 0, -1); if (!np) { dev_err(&pdev->dev, "Could not find the endpoint\n"); return -ENODEV; diff --git a/drivers/media/platform/ti/davinci/vpif.c b/drivers/media/platform/ti/davinci/vpif.c index 63cdfed37bc9..f4e1fa76bf37 100644 --- a/drivers/media/platform/ti/davinci/vpif.c +++ b/drivers/media/platform/ti/davinci/vpif.c @@ -465,8 +465,7 @@ static int vpif_probe(struct platform_device *pdev) * so their devices need to be registered manually here * for their legacy platform_drivers to work. */ - endpoint = of_graph_get_next_endpoint(pdev->dev.of_node, - endpoint); + endpoint = of_graph_get_endpoint_by_regs(pdev->dev.of_node, 0, -1); if (!endpoint) return 0; of_node_put(endpoint);
From DT point of view, in general, drivers should be asking for a specific port number because their function is fixed in the binding. of_graph_get_next_endpoint() doesn't match to this concept. Simply replace - of_graph_get_next_endpoint(xxx, NULL); + of_graph_get_endpoint_by_regs(xxx, 0, -1); Link: https://lore.kernel.org/r/20240202174941.GA310089-robh@kernel.org Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> --- drivers/media/platform/atmel/atmel-isi.c | 4 ++-- drivers/media/platform/intel/pxa_camera.c | 2 +- drivers/media/platform/samsung/exynos4-is/fimc-is.c | 2 +- drivers/media/platform/samsung/exynos4-is/mipi-csis.c | 2 +- drivers/media/platform/st/stm32/stm32-dcmi.c | 4 ++-- drivers/media/platform/ti/davinci/vpif.c | 3 +-- 6 files changed, 8 insertions(+), 9 deletions(-)