From: David Francis <David.Francis@xxxxxxx>
[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
Change-Id: I8ffc51b3d4db9993f11a2a547511087ab7ad0b15
Signed-off-by: David Francis <David.Francis@xxxxxxx>
Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@xxxxxxx>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@xxxxxxx>
---
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 abcfc05e06e8..948596a02392 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
*/
--
2.14.1
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