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ODROID-COMMON: drm/hdmitx: fix check if 'display-timings' node exists

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This patch is to prevent printing annoying kernel log '...could not find
display-timings node...' when a device tree does not contain the node.

drivers/video/of_display_timing.c:
	struct display_timings *of_get_display_timings(const struct device_node *np)
	{
		...
		timings_np = of_get_child_by_name(np, "display-timings");
		if (!timings_np) {
			pr_err("%pOF: could not find display-timings node\n", np);
			return NULL;
		}
	}

Signed-off-by: Dongjin Kim <tobetter@gmail.com>
Change-Id: I2a034e83461f1be6831d8d89e923e376e6fe51ee
This commit is contained in:
Dongjin Kim
2025-07-02 11:12:22 +09:00
parent 6afef25c3d
commit 32bc22508d
1 changed files with 13 additions and 1 deletions
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drivers/drm/odroid_helper_dt.c
+13 -1
View File
@@ -1,3 +1,5 @@
#include <linux/of.h>
#include <video/of_display_timing.h>
#include <video/videomode.h>
@@ -6,16 +8,26 @@
int load_odroid_display_mode_from_dt(struct drm_connector *connector,
struct device_node *node)
{
struct display_timings *disp = of_get_display_timings(node);
struct display_timings *disp;
struct device_node *timings_np;
int i;
int count = 0;
if (!node)
return 0;
timings_np = of_get_child_by_name(node, "display-timings");
if (!timings_np)
return 0;
disp = of_get_display_timings(node);
if (!disp)
return 0;
for (i = 0; i < disp->num_timings; i++) {
struct drm_display_mode mode;
int ret;
ret = of_get_drm_display_mode(node, &mode, NULL, i);
if (ret)
continue;