diff options
Diffstat (limited to 'common/recipes-kernel/linux/linux-yocto-4.19.8/0815-drm-amd-display-Get-backlight-controller-id-from-lin.patch')
-rw-r--r-- | common/recipes-kernel/linux/linux-yocto-4.19.8/0815-drm-amd-display-Get-backlight-controller-id-from-lin.patch | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/common/recipes-kernel/linux/linux-yocto-4.19.8/0815-drm-amd-display-Get-backlight-controller-id-from-lin.patch b/common/recipes-kernel/linux/linux-yocto-4.19.8/0815-drm-amd-display-Get-backlight-controller-id-from-lin.patch new file mode 100644 index 00000000..73e378e2 --- /dev/null +++ b/common/recipes-kernel/linux/linux-yocto-4.19.8/0815-drm-amd-display-Get-backlight-controller-id-from-lin.patch @@ -0,0 +1,45 @@ +From 1a2c10866e21c0fbb5f94164c9ca05cae324ee0e Mon Sep 17 00:00:00 2001 +From: David Francis <David.Francis@amd.com> +Date: Thu, 25 Oct 2018 15:47:43 -0400 +Subject: [PATCH 0815/2940] drm/amd/display: Get backlight controller id from + link + +[Why] +dc_link_set_backlight_level can be called from a context +where the stream is unknown. In this case, we can still +find which controller is driving this particular backlight + +[How] +Compare links for equality instead of streams + +Signed-off-by: David Francis <David.Francis@amd.com> +Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com> +Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com> +Signed-off-by: Alex Deucher <alexander.deucher@amd.com> +--- + drivers/gpu/drm/amd/display/dc/core/dc_link.c | 8 ++++---- + 1 file changed, 4 insertions(+), 4 deletions(-) + +diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link.c b/drivers/gpu/drm/amd/display/dc/core/dc_link.c +index 7494ed791ef1..83c2f757a5fb 100644 +--- a/drivers/gpu/drm/amd/display/dc/core/dc_link.c ++++ b/drivers/gpu/drm/amd/display/dc/core/dc_link.c +@@ -2173,11 +2173,11 @@ bool dc_link_set_backlight_level(const struct dc_link *link, + backlight_pwm_u16_16, backlight_pwm_u16_16); + + if (dc_is_embedded_signal(link->connector_signal)) { +- if (stream != NULL) { +- for (i = 0; i < MAX_PIPES; i++) { ++ for (i = 0; i < MAX_PIPES; i++) { ++ if (core_dc->current_state->res_ctx.pipe_ctx[i].stream) { + if (core_dc->current_state->res_ctx. +- pipe_ctx[i].stream +- == stream) ++ pipe_ctx[i].stream->sink->link ++ == link) + /* DMCU -1 for all controller id values, + * therefore +1 here + */ +-- +2.17.1 + |