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* [PATCH 0/2] of: replace of_graph_get_next_endpoint()
@ 2024-03-25  2:56 ` Kuninori Morimoto
  0 siblings, 0 replies; 8+ messages in thread
From: Kuninori Morimoto @ 2024-03-25  2:56 UTC (permalink / raw
  To: "Uwe Kleine-König", Alexey Brodkin, Daniel Vetter,
	David Airlie, Florian Fainelli, Helge Deller, Maarten Lankhorst,
	Maxime Ripard, Neil Armstrong, Rob Herring, Thomas Zimmermann,
	dri-devel, linux-arm-kernel, linux-fbdev, linux-omap,
	linux-rpi-kernel


Hi Rob, Helge

This is resend of remain of replace of_graph_get_next_endpoint()
(In previous patch-set, media maintainer accepted some of them).
This patches are for GPU/Video, I'm not sure who should handle it.
GPU/Video maintainer as Video, or Rom as OF ?

We should get rid of or minimize of_graph_get_next_endpoint() in
its current form. In general, drivers should be asking for a specific 
port number because their function is fixed in the binding.

	https://lore.kernel.org/r/20240131184347.GA1906672-robh@kernel.org

This patch-set replace of_graph_get_next_endpoint() by
of_graph_get_endpoint_by_regs(). There are still next_endpoint()
after this patch-set, but it will be replaced by
for_each_endpoint_of_node() in next patch-set (A)

[*] this patch-set
[o] done

	[o] tidyup of_graph_get_endpoint_count()
	[*] replace endpoint func - use endpoint_by_regs()
(A)	[ ] replace endpoint func - use for_each()
	[ ] rename endpoint func to device_endpoint
	[ ] add new port function
	[ ] add new endpont function
	[ ] remove of_graph_get_next_device_endpoint()

v1 -> v2
	- add Reviewed-by from Launrent
	- use by_regs(xx, -1, -1) for some devices
	- add extra explain for drm_of_get_dsi_bus()
	- add FIXME and Link on adv7604.c
	- based on latest of branch

Kuninori Morimoto (2):
  gpu: drm: replace of_graph_get_next_endpoint()
  video: fbdev: replace of_graph_get_next_endpoint()

 drivers/gpu/drm/drm_of.c                      |  4 +++-
 .../drm/panel/panel-raspberrypi-touchscreen.c |  2 +-
 drivers/gpu/drm/tiny/arcpgu.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 ---
 10 files changed, 15 insertions(+), 30 deletions(-)

-- 
2.25.1


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

^ permalink raw reply	[flat|nested] 8+ messages in thread

* [PATCH 0/2] of: replace of_graph_get_next_endpoint()
@ 2024-03-25  2:56 ` Kuninori Morimoto
  0 siblings, 0 replies; 8+ messages in thread
From: Kuninori Morimoto @ 2024-03-25  2:56 UTC (permalink / raw
  To: "Uwe Kleine-König", Alexey Brodkin, Daniel Vetter,
	David Airlie, Florian Fainelli, Helge Deller, Maarten Lankhorst,
	Maxime Ripard, Neil Armstrong, Rob Herring, Thomas Zimmermann,
	dri-devel, linux-arm-kernel, linux-fbdev, linux-omap,
	linux-rpi-kernel


Hi Rob, Helge

This is resend of remain of replace of_graph_get_next_endpoint()
(In previous patch-set, media maintainer accepted some of them).
This patches are for GPU/Video, I'm not sure who should handle it.
GPU/Video maintainer as Video, or Rom as OF ?

We should get rid of or minimize of_graph_get_next_endpoint() in
its current form. In general, drivers should be asking for a specific 
port number because their function is fixed in the binding.

	https://lore.kernel.org/r/20240131184347.GA1906672-robh@kernel.org

This patch-set replace of_graph_get_next_endpoint() by
of_graph_get_endpoint_by_regs(). There are still next_endpoint()
after this patch-set, but it will be replaced by
for_each_endpoint_of_node() in next patch-set (A)

[*] this patch-set
[o] done

	[o] tidyup of_graph_get_endpoint_count()
	[*] replace endpoint func - use endpoint_by_regs()
(A)	[ ] replace endpoint func - use for_each()
	[ ] rename endpoint func to device_endpoint
	[ ] add new port function
	[ ] add new endpont function
	[ ] remove of_graph_get_next_device_endpoint()

v1 -> v2
	- add Reviewed-by from Launrent
	- use by_regs(xx, -1, -1) for some devices
	- add extra explain for drm_of_get_dsi_bus()
	- add FIXME and Link on adv7604.c
	- based on latest of branch

Kuninori Morimoto (2):
  gpu: drm: replace of_graph_get_next_endpoint()
  video: fbdev: replace of_graph_get_next_endpoint()

 drivers/gpu/drm/drm_of.c                      |  4 +++-
 .../drm/panel/panel-raspberrypi-touchscreen.c |  2 +-
 drivers/gpu/drm/tiny/arcpgu.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 ---
 10 files changed, 15 insertions(+), 30 deletions(-)

-- 
2.25.1


^ permalink raw reply	[flat|nested] 8+ messages in thread

* [PATCH 1/2] gpu: drm: replace of_graph_get_next_endpoint()
  2024-03-25  2:56 ` Kuninori Morimoto
@ 2024-03-25  2:57   ` Kuninori Morimoto
  -1 siblings, 0 replies; 8+ messages in thread
From: Kuninori Morimoto @ 2024-03-25  2:57 UTC (permalink / raw
  To: "Uwe Kleine-König", Alexey Brodkin, Daniel Vetter,
	David Airlie, Florian Fainelli, Helge Deller, Maarten Lankhorst,
	Maxime Ripard, Neil Armstrong, Rob Herring, Thomas Zimmermann,
	dri-devel, linux-arm-kernel, linux-fbdev, linux-omap,
	linux-rpi-kernel

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>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
---
 drivers/gpu/drm/drm_of.c                              | 4 +++-
 drivers/gpu/drm/panel/panel-raspberrypi-touchscreen.c | 2 +-
 drivers/gpu/drm/tiny/arcpgu.c                         | 2 +-
 3 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/drm_of.c b/drivers/gpu/drm/drm_of.c
index 177b600895d3..b6b2cade69ae 100644
--- a/drivers/gpu/drm/drm_of.c
+++ b/drivers/gpu/drm/drm_of.c
@@ -504,6 +504,8 @@ EXPORT_SYMBOL_GPL(drm_of_get_data_lanes_count_ep);
  * Gets parent DSI bus for a DSI device controlled through a bus other
  * than MIPI-DCS (SPI, I2C, etc.) using the Device Tree.
  *
+ * This function assumes that the device's port@0 is the DSI input.
+ *
  * Returns pointer to mipi_dsi_host if successful, -EINVAL if the
  * request is unsupported, -EPROBE_DEFER if the DSI host is found but
  * not available, or -ENODEV otherwise.
@@ -516,7 +518,7 @@ struct mipi_dsi_host *drm_of_get_dsi_bus(struct device *dev)
 	/*
 	 * Get first endpoint child from device.
 	 */
-	endpoint = of_graph_get_next_endpoint(dev->of_node, NULL);
+	endpoint = of_graph_get_endpoint_by_regs(dev->of_node, 0, -1);
 	if (!endpoint)
 		return ERR_PTR(-ENODEV);
 
diff --git a/drivers/gpu/drm/panel/panel-raspberrypi-touchscreen.c b/drivers/gpu/drm/panel/panel-raspberrypi-touchscreen.c
index 4618c892cdd6..e10e469aa7a6 100644
--- a/drivers/gpu/drm/panel/panel-raspberrypi-touchscreen.c
+++ b/drivers/gpu/drm/panel/panel-raspberrypi-touchscreen.c
@@ -400,7 +400,7 @@ static int rpi_touchscreen_probe(struct i2c_client *i2c)
 	rpi_touchscreen_i2c_write(ts, REG_POWERON, 0);
 
 	/* Look up the DSI host.  It needs to probe before we do. */
-	endpoint = of_graph_get_next_endpoint(dev->of_node, NULL);
+	endpoint = of_graph_get_endpoint_by_regs(dev->of_node, 0, -1);
 	if (!endpoint)
 		return -ENODEV;
 
diff --git a/drivers/gpu/drm/tiny/arcpgu.c b/drivers/gpu/drm/tiny/arcpgu.c
index 4f8f3172379e..8c29b719ea62 100644
--- a/drivers/gpu/drm/tiny/arcpgu.c
+++ b/drivers/gpu/drm/tiny/arcpgu.c
@@ -288,7 +288,7 @@ static int arcpgu_load(struct arcpgu_drm_private *arcpgu)
 	 * There is only one output port inside each device. It is linked with
 	 * encoder endpoint.
 	 */
-	endpoint_node = of_graph_get_next_endpoint(pdev->dev.of_node, NULL);
+	endpoint_node = of_graph_get_endpoint_by_regs(pdev->dev.of_node, 0, -1);
 	if (endpoint_node) {
 		encoder_node = of_graph_get_remote_port_parent(endpoint_node);
 		of_node_put(endpoint_node);
-- 
2.25.1


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

^ permalink raw reply related	[flat|nested] 8+ messages in thread

* [PATCH 1/2] gpu: drm: replace of_graph_get_next_endpoint()
@ 2024-03-25  2:57   ` Kuninori Morimoto
  0 siblings, 0 replies; 8+ messages in thread
From: Kuninori Morimoto @ 2024-03-25  2:57 UTC (permalink / raw
  To: "Uwe Kleine-König", Alexey Brodkin, Daniel Vetter,
	David Airlie, Florian Fainelli, Helge Deller, Maarten Lankhorst,
	Maxime Ripard, Neil Armstrong, Rob Herring, Thomas Zimmermann,
	dri-devel, linux-arm-kernel, linux-fbdev, linux-omap,
	linux-rpi-kernel

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>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
---
 drivers/gpu/drm/drm_of.c                              | 4 +++-
 drivers/gpu/drm/panel/panel-raspberrypi-touchscreen.c | 2 +-
 drivers/gpu/drm/tiny/arcpgu.c                         | 2 +-
 3 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/drm_of.c b/drivers/gpu/drm/drm_of.c
index 177b600895d3..b6b2cade69ae 100644
--- a/drivers/gpu/drm/drm_of.c
+++ b/drivers/gpu/drm/drm_of.c
@@ -504,6 +504,8 @@ EXPORT_SYMBOL_GPL(drm_of_get_data_lanes_count_ep);
  * Gets parent DSI bus for a DSI device controlled through a bus other
  * than MIPI-DCS (SPI, I2C, etc.) using the Device Tree.
  *
+ * This function assumes that the device's port@0 is the DSI input.
+ *
  * Returns pointer to mipi_dsi_host if successful, -EINVAL if the
  * request is unsupported, -EPROBE_DEFER if the DSI host is found but
  * not available, or -ENODEV otherwise.
@@ -516,7 +518,7 @@ struct mipi_dsi_host *drm_of_get_dsi_bus(struct device *dev)
 	/*
 	 * Get first endpoint child from device.
 	 */
-	endpoint = of_graph_get_next_endpoint(dev->of_node, NULL);
+	endpoint = of_graph_get_endpoint_by_regs(dev->of_node, 0, -1);
 	if (!endpoint)
 		return ERR_PTR(-ENODEV);
 
diff --git a/drivers/gpu/drm/panel/panel-raspberrypi-touchscreen.c b/drivers/gpu/drm/panel/panel-raspberrypi-touchscreen.c
index 4618c892cdd6..e10e469aa7a6 100644
--- a/drivers/gpu/drm/panel/panel-raspberrypi-touchscreen.c
+++ b/drivers/gpu/drm/panel/panel-raspberrypi-touchscreen.c
@@ -400,7 +400,7 @@ static int rpi_touchscreen_probe(struct i2c_client *i2c)
 	rpi_touchscreen_i2c_write(ts, REG_POWERON, 0);
 
 	/* Look up the DSI host.  It needs to probe before we do. */
-	endpoint = of_graph_get_next_endpoint(dev->of_node, NULL);
+	endpoint = of_graph_get_endpoint_by_regs(dev->of_node, 0, -1);
 	if (!endpoint)
 		return -ENODEV;
 
diff --git a/drivers/gpu/drm/tiny/arcpgu.c b/drivers/gpu/drm/tiny/arcpgu.c
index 4f8f3172379e..8c29b719ea62 100644
--- a/drivers/gpu/drm/tiny/arcpgu.c
+++ b/drivers/gpu/drm/tiny/arcpgu.c
@@ -288,7 +288,7 @@ static int arcpgu_load(struct arcpgu_drm_private *arcpgu)
 	 * There is only one output port inside each device. It is linked with
 	 * encoder endpoint.
 	 */
-	endpoint_node = of_graph_get_next_endpoint(pdev->dev.of_node, NULL);
+	endpoint_node = of_graph_get_endpoint_by_regs(pdev->dev.of_node, 0, -1);
 	if (endpoint_node) {
 		encoder_node = of_graph_get_remote_port_parent(endpoint_node);
 		of_node_put(endpoint_node);
-- 
2.25.1


^ permalink raw reply related	[flat|nested] 8+ messages in thread

* [PATCH 2/2] video: fbdev: replace of_graph_get_next_endpoint()
  2024-03-25  2:56 ` Kuninori Morimoto
@ 2024-03-25  2:57   ` Kuninori Morimoto
  -1 siblings, 0 replies; 8+ messages in thread
From: Kuninori Morimoto @ 2024-03-25  2:57 UTC (permalink / raw
  To: "Uwe Kleine-König", Alexey Brodkin, Daniel Vetter,
	David Airlie, Florian Fainelli, Helge Deller, Maarten Lankhorst,
	Maxime Ripard, Neil Armstrong, Rob Herring, Thomas Zimmermann,
	dri-devel, linux-arm-kernel, linux-fbdev, linux-omap,
	linux-rpi-kernel

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>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
---
 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 ---
 7 files changed, 10 insertions(+), 27 deletions(-)

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
-- 
2.25.1


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

^ permalink raw reply related	[flat|nested] 8+ messages in thread

* [PATCH 2/2] video: fbdev: replace of_graph_get_next_endpoint()
@ 2024-03-25  2:57   ` Kuninori Morimoto
  0 siblings, 0 replies; 8+ messages in thread
From: Kuninori Morimoto @ 2024-03-25  2:57 UTC (permalink / raw
  To: "Uwe Kleine-König", Alexey Brodkin, Daniel Vetter,
	David Airlie, Florian Fainelli, Helge Deller, Maarten Lankhorst,
	Maxime Ripard, Neil Armstrong, Rob Herring, Thomas Zimmermann,
	dri-devel, linux-arm-kernel, linux-fbdev, linux-omap,
	linux-rpi-kernel

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>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
---
 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 ---
 7 files changed, 10 insertions(+), 27 deletions(-)

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
-- 
2.25.1


^ permalink raw reply related	[flat|nested] 8+ messages in thread

* Re: [PATCH 2/2] video: fbdev: replace of_graph_get_next_endpoint()
  2024-03-25  2:57   ` Kuninori Morimoto
@ 2024-03-25  4:50     ` Helge Deller
  -1 siblings, 0 replies; 8+ messages in thread
From: Helge Deller @ 2024-03-25  4:50 UTC (permalink / raw
  To: Kuninori Morimoto, Uwe Kleine-König, Alexey Brodkin,
	Daniel Vetter, David Airlie, Florian Fainelli, Maarten Lankhorst,
	Maxime Ripard, Neil Armstrong, Rob Herring, Thomas Zimmermann,
	dri-devel, linux-arm-kernel, linux-fbdev, linux-omap,
	linux-rpi-kernel

On 3/25/24 03:57, 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>
> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

applied to fbdev git tree.

Thanks!
Helge


> ---
>   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 ---
>   7 files changed, 10 insertions(+), 27 deletions(-)
>
> 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


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^ permalink raw reply	[flat|nested] 8+ messages in thread

* Re: [PATCH 2/2] video: fbdev: replace of_graph_get_next_endpoint()
@ 2024-03-25  4:50     ` Helge Deller
  0 siblings, 0 replies; 8+ messages in thread
From: Helge Deller @ 2024-03-25  4:50 UTC (permalink / raw
  To: Kuninori Morimoto, Uwe Kleine-König, Alexey Brodkin,
	Daniel Vetter, David Airlie, Florian Fainelli, Maarten Lankhorst,
	Maxime Ripard, Neil Armstrong, Rob Herring, Thomas Zimmermann,
	dri-devel, linux-arm-kernel, linux-fbdev, linux-omap,
	linux-rpi-kernel

On 3/25/24 03:57, 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>
> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

applied to fbdev git tree.

Thanks!
Helge


> ---
>   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 ---
>   7 files changed, 10 insertions(+), 27 deletions(-)
>
> 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


^ permalink raw reply	[flat|nested] 8+ messages in thread

end of thread, other threads:[~2024-03-25  4:51 UTC | newest]

Thread overview: 8+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2024-03-25  2:56 [PATCH 0/2] of: replace of_graph_get_next_endpoint() Kuninori Morimoto
2024-03-25  2:56 ` Kuninori Morimoto
2024-03-25  2:57 ` [PATCH 1/2] gpu: drm: " Kuninori Morimoto
2024-03-25  2:57   ` Kuninori Morimoto
2024-03-25  2:57 ` [PATCH 2/2] video: fbdev: " Kuninori Morimoto
2024-03-25  2:57   ` Kuninori Morimoto
2024-03-25  4:50   ` Helge Deller
2024-03-25  4:50     ` Helge Deller

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