This is a note to let you know that I've just added the patch titled
drm/rockchip: vop2: Use regcache_sync() to fix suspend/resume
to the 6.2-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-rockchip-vop2-use-regcache_sync-to-fix-suspend-resume.patch
and it can be found in the queue-6.2 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From b63a553e8f5aa6574eeb535a551817a93c426d8c Mon Sep 17 00:00:00 2001
From: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
Date: Mon, 17 Apr 2023 14:37:47 +0200
Subject: drm/rockchip: vop2: Use regcache_sync() to fix suspend/resume
From: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
commit b63a553e8f5aa6574eeb535a551817a93c426d8c upstream.
afa965a45e01 ("drm/rockchip: vop2: fix suspend/resume") uses
regmap_reinit_cache() to fix the suspend/resume issue with the VOP2
driver. During discussion it came up that we should rather use
regcache_sync() instead. As the original patch is already applied
fix this up in this follow-up patch.
Fixes: afa965a45e01 ("drm/rockchip: vop2: fix suspend/resume")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
Signed-off-by: Heiko Stuebner <heiko@xxxxxxxxx>
Link: https://patchwork.freedesktop.org/patch/msgid/20230417123747.2179695-1-s.hauer@xxxxxxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/rockchip/rockchip_drm_vop2.c | 10 +++-------
1 file changed, 3 insertions(+), 7 deletions(-)
--- a/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c
@@ -216,8 +216,6 @@ struct vop2 {
struct vop2_win win[];
};
-static const struct regmap_config vop2_regmap_config;
-
static struct vop2_video_port *to_vop2_video_port(struct drm_crtc *crtc)
{
return container_of(crtc, struct vop2_video_port, crtc);
@@ -842,11 +840,7 @@ static void vop2_enable(struct vop2 *vop
return;
}
- ret = regmap_reinit_cache(vop2->map, &vop2_regmap_config);
- if (ret) {
- drm_err(vop2->drm, "failed to reinit cache: %d\n", ret);
- return;
- }
+ regcache_sync(vop2->map);
if (vop2->data->soc_id == 3566)
vop2_writel(vop2, RK3568_OTP_WIN_EN, 1);
@@ -876,6 +870,8 @@ static void vop2_disable(struct vop2 *vo
pm_runtime_put_sync(vop2->dev);
+ regcache_mark_dirty(vop2->map);
+
clk_disable_unprepare(vop2->aclk);
clk_disable_unprepare(vop2->hclk);
}
Patches currently in stable-queue which might be from s.hauer@xxxxxxxxxxxxxx are
queue-6.2/drm-rockchip-vop2-fix-suspend-resume.patch
queue-6.2/drm-rockchip-vop2-use-regcache_sync-to-fix-suspend-resume.patch
