mirror of
https://github.com/Ysurac/openmptcprouter.git
synced 2025-03-09 15:40:20 +00:00
47 lines
1.6 KiB
Diff
47 lines
1.6 KiB
Diff
From 62ebda30d43d1f19f3f4a8bb4835df445e022920 Mon Sep 17 00:00:00 2001
|
|
From: Dave Stevenson <dave.stevenson@raspberrypi.com>
|
|
Date: Mon, 9 Oct 2023 16:34:36 +0100
|
|
Subject: [PATCH 395/697] drm/fb-helper: Look up preferred fbdev node number
|
|
from DT
|
|
|
|
For situations where there are multiple DRM cards in a system,
|
|
add a query of DT for "drm_fb" designations for cards to set
|
|
their preferred /dev/fbN designation.
|
|
|
|
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
|
|
|
|
drm/fb_helper: Change query for FB designation from drm_fb to drm-fb
|
|
|
|
Fixes: 1216ea56c2e3 ("drm/fb-helper: Look up preferred fbdev node number from DT")
|
|
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
|
|
---
|
|
drivers/gpu/drm/drm_fb_helper.c | 11 ++++++++++-
|
|
1 file changed, 10 insertions(+), 1 deletion(-)
|
|
|
|
--- a/drivers/gpu/drm/drm_fb_helper.c
|
|
+++ b/drivers/gpu/drm/drm_fb_helper.c
|
|
@@ -1838,7 +1838,7 @@ __drm_fb_helper_initial_config_and_unloc
|
|
struct drm_device *dev = fb_helper->dev;
|
|
struct fb_info *info;
|
|
unsigned int width, height;
|
|
- int ret;
|
|
+ int ret, id;
|
|
|
|
width = dev->mode_config.max_width;
|
|
height = dev->mode_config.max_height;
|
|
@@ -1866,6 +1866,15 @@ __drm_fb_helper_initial_config_and_unloc
|
|
* register the fbdev emulation instance in kernel_fb_helper_list. */
|
|
mutex_unlock(&fb_helper->lock);
|
|
|
|
+ id = of_alias_get_highest_id("drm-fb");
|
|
+ if (id >= 0)
|
|
+ fb_set_lowest_dynamic_fb(id + 1);
|
|
+
|
|
+ id = of_alias_get_id(dev->dev->of_node, "drm-fb");
|
|
+ if (id >= 0) {
|
|
+ info->node = id;
|
|
+ info->custom_fb_num = true;
|
|
+ }
|
|
ret = register_framebuffer(info);
|
|
if (ret < 0)
|
|
return ret;
|