| Message ID | 87o7cunvwv.wl-kuninori.morimoto.gx@renesas.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | of: replace of_graph_get_next_endpoint() | expand |
Hi Morimoto-san, Thank you for the patch. On Tue, Feb 06, 2024 at 02:55:45AM +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/video/fbdev/amba-clcd.c | 2 +- > drivers/video/fbdev/omap2/omapfb/dss/dsi.c | 3 ++- > drivers/video/fbdev/omap2/omapfb/dss/dss-of.c | 20 +------------------ > drivers/video/fbdev/omap2/omapfb/dss/hdmi4.c | 3 ++- > drivers/video/fbdev/omap2/omapfb/dss/hdmi5.c | 3 ++- > drivers/video/fbdev/omap2/omapfb/dss/venc.c | 3 ++- > drivers/video/fbdev/pxafb.c | 2 +- > include/video/omapfb_dss.h | 3 --- > 8 files changed, 11 insertions(+), 28 deletions(-) > > diff --git a/drivers/video/fbdev/amba-clcd.c b/drivers/video/fbdev/amba-clcd.c > index 0399db369e70..2371b204cfd2 100644 > --- a/drivers/video/fbdev/amba-clcd.c > +++ b/drivers/video/fbdev/amba-clcd.c This driver has been deleted in v6.8-rc1. > @@ -691,7 +691,7 @@ static int clcdfb_of_init_display(struct clcd_fb *fb) > /* > * Fetch the panel endpoint. > */ > - endpoint = of_graph_get_next_endpoint(fb->dev->dev.of_node, NULL); > + endpoint = of_graph_get_endpoint_by_regs(fb->dev->dev.of_node, 0, -1); > if (!endpoint) > return -ENODEV; > > diff --git a/drivers/video/fbdev/omap2/omapfb/dss/dsi.c b/drivers/video/fbdev/omap2/omapfb/dss/dsi.c > index b7eb17a16ec4..1f13bcf73da5 100644 > --- a/drivers/video/fbdev/omap2/omapfb/dss/dsi.c > +++ b/drivers/video/fbdev/omap2/omapfb/dss/dsi.c > @@ -28,6 +28,7 @@ > #include <linux/debugfs.h> > #include <linux/pm_runtime.h> > #include <linux/of.h> > +#include <linux/of_graph.h> > #include <linux/of_platform.h> > #include <linux/component.h> > > @@ -5079,7 +5080,7 @@ static int dsi_probe_of(struct platform_device *pdev) > struct device_node *ep; > struct omap_dsi_pin_config pin_cfg; > > - ep = omapdss_of_get_first_endpoint(node); > + ep = of_graph_get_endpoint_by_regs(node, 0, -1); > if (!ep) > return 0; > > diff --git a/drivers/video/fbdev/omap2/omapfb/dss/dss-of.c b/drivers/video/fbdev/omap2/omapfb/dss/dss-of.c > index 0282d4eef139..14965a3fd05b 100644 > --- a/drivers/video/fbdev/omap2/omapfb/dss/dss-of.c > +++ b/drivers/video/fbdev/omap2/omapfb/dss/dss-of.c > @@ -130,24 +130,6 @@ static struct device_node *omapdss_of_get_remote_port(const struct device_node * > return np; > } > > -struct device_node * > -omapdss_of_get_first_endpoint(const struct device_node *parent) > -{ > - struct device_node *port, *ep; > - > - port = omapdss_of_get_next_port(parent, NULL); > - > - if (!port) > - return NULL; > - > - ep = omapdss_of_get_next_endpoint(port, NULL); > - > - of_node_put(port); > - > - return ep; > -} > -EXPORT_SYMBOL_GPL(omapdss_of_get_first_endpoint); > - I *think* replacing omapdss_of_get_first_endpoint() with of_graph_get_endpoint_by_regs(0, -1) is functionally equivalent in all cases, but a confirmation from Tomi would be nice. I wonder if it wouldn't be time to drop the fbdev driver though... Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> > struct omap_dss_device * > omapdss_of_find_source_for_first_ep(struct device_node *node) > { > @@ -155,7 +137,7 @@ omapdss_of_find_source_for_first_ep(struct device_node *node) > struct device_node *src_port; > struct omap_dss_device *src; > > - ep = omapdss_of_get_first_endpoint(node); > + ep = of_graph_get_endpoint_by_regs(node, 0, -1); > if (!ep) > return ERR_PTR(-EINVAL); > > diff --git a/drivers/video/fbdev/omap2/omapfb/dss/hdmi4.c b/drivers/video/fbdev/omap2/omapfb/dss/hdmi4.c > index f05b4e35a842..8f407ec134dc 100644 > --- a/drivers/video/fbdev/omap2/omapfb/dss/hdmi4.c > +++ b/drivers/video/fbdev/omap2/omapfb/dss/hdmi4.c > @@ -20,6 +20,7 @@ > #include <linux/pm_runtime.h> > #include <linux/clk.h> > #include <linux/of.h> > +#include <linux/of_graph.h> > #include <linux/regulator/consumer.h> > #include <linux/component.h> > #include <video/omapfb_dss.h> > @@ -529,7 +530,7 @@ static int hdmi_probe_of(struct platform_device *pdev) > struct device_node *ep; > int r; > > - ep = omapdss_of_get_first_endpoint(node); > + ep = of_graph_get_endpoint_by_regs(node, 0, -1); > if (!ep) > return 0; > > diff --git a/drivers/video/fbdev/omap2/omapfb/dss/hdmi5.c b/drivers/video/fbdev/omap2/omapfb/dss/hdmi5.c > index 03292945b1d4..4ad219f522b9 100644 > --- a/drivers/video/fbdev/omap2/omapfb/dss/hdmi5.c > +++ b/drivers/video/fbdev/omap2/omapfb/dss/hdmi5.c > @@ -25,6 +25,7 @@ > #include <linux/pm_runtime.h> > #include <linux/clk.h> > #include <linux/of.h> > +#include <linux/of_graph.h> > #include <linux/regulator/consumer.h> > #include <linux/component.h> > #include <video/omapfb_dss.h> > @@ -561,7 +562,7 @@ static int hdmi_probe_of(struct platform_device *pdev) > struct device_node *ep; > int r; > > - ep = omapdss_of_get_first_endpoint(node); > + ep = of_graph_get_endpoint_by_regs(node, 0, -1); > if (!ep) > return 0; > > diff --git a/drivers/video/fbdev/omap2/omapfb/dss/venc.c b/drivers/video/fbdev/omap2/omapfb/dss/venc.c > index c9d40e28a06f..0bd80d3b8f1b 100644 > --- a/drivers/video/fbdev/omap2/omapfb/dss/venc.c > +++ b/drivers/video/fbdev/omap2/omapfb/dss/venc.c > @@ -24,6 +24,7 @@ > #include <linux/regulator/consumer.h> > #include <linux/pm_runtime.h> > #include <linux/of.h> > +#include <linux/of_graph.h> > #include <linux/component.h> > > #include <video/omapfb_dss.h> > @@ -764,7 +765,7 @@ static int venc_probe_of(struct platform_device *pdev) > u32 channels; > int r; > > - ep = omapdss_of_get_first_endpoint(node); > + ep = of_graph_get_endpoint_by_regs(node, 0, -1); > if (!ep) > return 0; > > diff --git a/drivers/video/fbdev/pxafb.c b/drivers/video/fbdev/pxafb.c > index fa943612c4e2..2ef56fa28aff 100644 > --- a/drivers/video/fbdev/pxafb.c > +++ b/drivers/video/fbdev/pxafb.c > @@ -2171,7 +2171,7 @@ static int of_get_pxafb_mode_info(struct device *dev, > u32 bus_width; > int ret, i; > > - np = of_graph_get_next_endpoint(dev->of_node, NULL); > + np = of_graph_get_endpoint_by_regs(dev->of_node, 0, -1); > if (!np) { > dev_err(dev, "could not find endpoint\n"); > return -EINVAL; > diff --git a/include/video/omapfb_dss.h b/include/video/omapfb_dss.h > index e8eaac2cb7b8..a8c0c3eeeb5b 100644 > --- a/include/video/omapfb_dss.h > +++ b/include/video/omapfb_dss.h > @@ -819,9 +819,6 @@ struct device_node * > omapdss_of_get_next_endpoint(const struct device_node *parent, > struct device_node *prev); > > -struct device_node * > -omapdss_of_get_first_endpoint(const struct device_node *parent); > - > struct omap_dss_device * > omapdss_of_find_source_for_first_ep(struct device_node *node); > #else
Hi Laurent Thank you for the review > > 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); (snip) > > --- a/drivers/video/fbdev/amba-clcd.c > > +++ b/drivers/video/fbdev/amba-clcd.c > > This driver has been deleted in v6.8-rc1. Thank you for pointing it. I will rebase to latest of branch in v2 Thank you for your help !! Best regards --- Renesas Electronics Ph.D. Kuninori Morimoto
diff --git a/drivers/video/fbdev/amba-clcd.c b/drivers/video/fbdev/amba-clcd.c index 0399db369e70..2371b204cfd2 100644 --- a/drivers/video/fbdev/amba-clcd.c +++ b/drivers/video/fbdev/amba-clcd.c @@ -691,7 +691,7 @@ static int clcdfb_of_init_display(struct clcd_fb *fb) /* * Fetch the panel endpoint. */ - endpoint = of_graph_get_next_endpoint(fb->dev->dev.of_node, NULL); + endpoint = of_graph_get_endpoint_by_regs(fb->dev->dev.of_node, 0, -1); if (!endpoint) return -ENODEV; diff --git a/drivers/video/fbdev/omap2/omapfb/dss/dsi.c b/drivers/video/fbdev/omap2/omapfb/dss/dsi.c index b7eb17a16ec4..1f13bcf73da5 100644 --- a/drivers/video/fbdev/omap2/omapfb/dss/dsi.c +++ b/drivers/video/fbdev/omap2/omapfb/dss/dsi.c @@ -28,6 +28,7 @@ #include <linux/debugfs.h> #include <linux/pm_runtime.h> #include <linux/of.h> +#include <linux/of_graph.h> #include <linux/of_platform.h> #include <linux/component.h> @@ -5079,7 +5080,7 @@ static int dsi_probe_of(struct platform_device *pdev) struct device_node *ep; struct omap_dsi_pin_config pin_cfg; - ep = omapdss_of_get_first_endpoint(node); + ep = of_graph_get_endpoint_by_regs(node, 0, -1); if (!ep) return 0; diff --git a/drivers/video/fbdev/omap2/omapfb/dss/dss-of.c b/drivers/video/fbdev/omap2/omapfb/dss/dss-of.c index 0282d4eef139..14965a3fd05b 100644 --- a/drivers/video/fbdev/omap2/omapfb/dss/dss-of.c +++ b/drivers/video/fbdev/omap2/omapfb/dss/dss-of.c @@ -130,24 +130,6 @@ static struct device_node *omapdss_of_get_remote_port(const struct device_node * return np; } -struct device_node * -omapdss_of_get_first_endpoint(const struct device_node *parent) -{ - struct device_node *port, *ep; - - port = omapdss_of_get_next_port(parent, NULL); - - if (!port) - return NULL; - - ep = omapdss_of_get_next_endpoint(port, NULL); - - of_node_put(port); - - return ep; -} -EXPORT_SYMBOL_GPL(omapdss_of_get_first_endpoint); - struct omap_dss_device * omapdss_of_find_source_for_first_ep(struct device_node *node) { @@ -155,7 +137,7 @@ omapdss_of_find_source_for_first_ep(struct device_node *node) struct device_node *src_port; struct omap_dss_device *src; - ep = omapdss_of_get_first_endpoint(node); + ep = of_graph_get_endpoint_by_regs(node, 0, -1); if (!ep) return ERR_PTR(-EINVAL); diff --git a/drivers/video/fbdev/omap2/omapfb/dss/hdmi4.c b/drivers/video/fbdev/omap2/omapfb/dss/hdmi4.c index f05b4e35a842..8f407ec134dc 100644 --- a/drivers/video/fbdev/omap2/omapfb/dss/hdmi4.c +++ b/drivers/video/fbdev/omap2/omapfb/dss/hdmi4.c @@ -20,6 +20,7 @@ #include <linux/pm_runtime.h> #include <linux/clk.h> #include <linux/of.h> +#include <linux/of_graph.h> #include <linux/regulator/consumer.h> #include <linux/component.h> #include <video/omapfb_dss.h> @@ -529,7 +530,7 @@ static int hdmi_probe_of(struct platform_device *pdev) struct device_node *ep; int r; - ep = omapdss_of_get_first_endpoint(node); + ep = of_graph_get_endpoint_by_regs(node, 0, -1); if (!ep) return 0; diff --git a/drivers/video/fbdev/omap2/omapfb/dss/hdmi5.c b/drivers/video/fbdev/omap2/omapfb/dss/hdmi5.c index 03292945b1d4..4ad219f522b9 100644 --- a/drivers/video/fbdev/omap2/omapfb/dss/hdmi5.c +++ b/drivers/video/fbdev/omap2/omapfb/dss/hdmi5.c @@ -25,6 +25,7 @@ #include <linux/pm_runtime.h> #include <linux/clk.h> #include <linux/of.h> +#include <linux/of_graph.h> #include <linux/regulator/consumer.h> #include <linux/component.h> #include <video/omapfb_dss.h> @@ -561,7 +562,7 @@ static int hdmi_probe_of(struct platform_device *pdev) struct device_node *ep; int r; - ep = omapdss_of_get_first_endpoint(node); + ep = of_graph_get_endpoint_by_regs(node, 0, -1); if (!ep) return 0; diff --git a/drivers/video/fbdev/omap2/omapfb/dss/venc.c b/drivers/video/fbdev/omap2/omapfb/dss/venc.c index c9d40e28a06f..0bd80d3b8f1b 100644 --- a/drivers/video/fbdev/omap2/omapfb/dss/venc.c +++ b/drivers/video/fbdev/omap2/omapfb/dss/venc.c @@ -24,6 +24,7 @@ #include <linux/regulator/consumer.h> #include <linux/pm_runtime.h> #include <linux/of.h> +#include <linux/of_graph.h> #include <linux/component.h> #include <video/omapfb_dss.h> @@ -764,7 +765,7 @@ static int venc_probe_of(struct platform_device *pdev) u32 channels; int r; - ep = omapdss_of_get_first_endpoint(node); + ep = of_graph_get_endpoint_by_regs(node, 0, -1); if (!ep) return 0; diff --git a/drivers/video/fbdev/pxafb.c b/drivers/video/fbdev/pxafb.c index fa943612c4e2..2ef56fa28aff 100644 --- a/drivers/video/fbdev/pxafb.c +++ b/drivers/video/fbdev/pxafb.c @@ -2171,7 +2171,7 @@ static int of_get_pxafb_mode_info(struct device *dev, u32 bus_width; int ret, i; - np = of_graph_get_next_endpoint(dev->of_node, NULL); + np = of_graph_get_endpoint_by_regs(dev->of_node, 0, -1); if (!np) { dev_err(dev, "could not find endpoint\n"); return -EINVAL; diff --git a/include/video/omapfb_dss.h b/include/video/omapfb_dss.h index e8eaac2cb7b8..a8c0c3eeeb5b 100644 --- a/include/video/omapfb_dss.h +++ b/include/video/omapfb_dss.h @@ -819,9 +819,6 @@ struct device_node * omapdss_of_get_next_endpoint(const struct device_node *parent, struct device_node *prev); -struct device_node * -omapdss_of_get_first_endpoint(const struct device_node *parent); - struct omap_dss_device * omapdss_of_find_source_for_first_ep(struct device_node *node); #else
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/video/fbdev/amba-clcd.c | 2 +- drivers/video/fbdev/omap2/omapfb/dss/dsi.c | 3 ++- drivers/video/fbdev/omap2/omapfb/dss/dss-of.c | 20 +------------------ drivers/video/fbdev/omap2/omapfb/dss/hdmi4.c | 3 ++- drivers/video/fbdev/omap2/omapfb/dss/hdmi5.c | 3 ++- drivers/video/fbdev/omap2/omapfb/dss/venc.c | 3 ++- drivers/video/fbdev/pxafb.c | 2 +- include/video/omapfb_dss.h | 3 --- 8 files changed, 11 insertions(+), 28 deletions(-)