From: Anthony Koo <Anthony.Koo@xxxxxxx>
[Why]
Backlight adjustment is tied to a specific display. So make the calls
target a link rather than making it a global state.
[How]
make all backlight calls link based
Signed-off-by: Anthony Koo <Anthony.Koo@xxxxxxx>
Reviewed-by: Tony Cheng <Tony.Cheng@xxxxxxx>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@xxxxxxx>
---
.../amd/display/amdgpu_dm/amdgpu_dm_debugfs.c | 10 ++++---
drivers/gpu/drm/amd/display/dc/core/dc.c | 21 -------------
drivers/gpu/drm/amd/display/dc/core/dc_link.c | 30 +++++++++++++++----
drivers/gpu/drm/amd/display/dc/dc.h | 2 --
drivers/gpu/drm/amd/display/dc/dc_link.h | 2 ++
5 files changed, 33 insertions(+), 32 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c
index 4b695f6a80c6..b3b7efd973ca 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c
@@ -1228,8 +1228,9 @@ static int current_backlight_read(struct seq_file *m, void *data)
struct drm_info_node *node = (struct drm_info_node *)m->private;
struct drm_device *dev = node->minor->dev;
struct amdgpu_device *adev = dev->dev_private;
- struct dc *dc = adev->dm.dc;
- unsigned int backlight = dc_get_current_backlight_pwm(dc);
+ struct amdgpu_display_manager *dm = &adev->dm;
+
+ unsigned int backlight = dc_link_get_backlight_level(dm->backlight_link);
seq_printf(m, "0x%x\n", backlight);
return 0;
@@ -1245,8 +1246,9 @@ static int target_backlight_read(struct seq_file *m, void *data)
struct drm_info_node *node = (struct drm_info_node *)m->private;
struct drm_device *dev = node->minor->dev;
struct amdgpu_device *adev = dev->dev_private;
- struct dc *dc = adev->dm.dc;
- unsigned int backlight = dc_get_target_backlight_pwm(dc);
+ struct amdgpu_display_manager *dm = &adev->dm;
+
+ unsigned int backlight = dc_link_get_target_backlight_pwm(dm->backlight_link);
seq_printf(m, "0x%x\n", backlight);
return 0;
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c
index d5ecf2031255..0f7810571be3 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -2646,33 +2646,12 @@ void dc_set_power_state(
void dc_resume(struct dc *dc)
{
-
uint32_t i;
for (i = 0; i < dc->link_count; i++)
core_link_resume(dc->links[i]);
}
-unsigned int dc_get_current_backlight_pwm(struct dc *dc)
-{
- struct abm *abm = dc->res_pool->abm;
-
- if (abm)
- return abm->funcs->get_current_backlight(abm);
-
- return 0;
-}
-
-unsigned int dc_get_target_backlight_pwm(struct dc *dc)
-{
- struct abm *abm = dc->res_pool->abm;
-
- if (abm)
- return abm->funcs->get_target_backlight(abm);
-
- return 0;
-}
-
bool dc_is_dmcu_initialized(struct dc *dc)
{
struct dmcu *dmcu = dc->res_pool->dmcu;
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 a926c1c3f57d..a784fd2078a8 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_link.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_link.c
@@ -2450,6 +2450,16 @@ int dc_link_get_backlight_level(const struct dc_link *link)
return (int) abm->funcs->get_current_backlight(abm);
}
+int dc_link_get_target_backlight_pwm(const struct dc_link *link)
+{
+ struct abm *abm = link->ctx->dc->res_pool->abm;
+
+ if (abm == NULL || abm->funcs->get_target_backlight == NULL)
+ return DC_ERROR_UNEXPECTED;
+
+ return (int) abm->funcs->get_target_backlight(abm);
+}
+
bool dc_link_set_backlight_level(const struct dc_link *link,
uint32_t backlight_pwm_u16_16,
uint32_t frame_ramp)
@@ -2507,14 +2517,24 @@ bool dc_link_set_backlight_level(const struct dc_link *link,
bool dc_link_set_abm_disable(const struct dc_link *link)
{
struct dc *dc = link->ctx->dc;
- struct abm *abm = dc->res_pool->abm;
+ struct abm *abm = NULL;
+ bool success = false;
+ int i;
- if ((abm == NULL) || (abm->funcs->set_backlight_level_pwm == NULL))
- return false;
+ for (i = 0; i < MAX_PIPES; i++) {
+ struct pipe_ctx pipe_ctx = dc->current_state->res_ctx.pipe_ctx[i];
+ struct dc_stream_state *stream = pipe_ctx.stream;
+
+ if (stream && stream->link == link) {
+ abm = pipe_ctx.stream_res.abm;
+ break;
+ }
+ }
- abm->funcs->set_abm_immediate_disable(abm);
+ if (abm)
+ success = abm->funcs->set_abm_immediate_disable(abm);
- return true;
+ return success;
}
bool dc_link_set_psr_allow_active(struct dc_link *link, bool allow_active, bool wait)
diff --git a/drivers/gpu/drm/amd/display/dc/dc.h b/drivers/gpu/drm/amd/display/dc/dc.h
index c46d4f8d4fe8..5432ca1657b1 100644
--- a/drivers/gpu/drm/amd/display/dc/dc.h
+++ b/drivers/gpu/drm/amd/display/dc/dc.h
@@ -1139,8 +1139,6 @@ void dc_set_power_state(
struct dc *dc,
enum dc_acpi_cm_power_state power_state);
void dc_resume(struct dc *dc);
-unsigned int dc_get_current_backlight_pwm(struct dc *dc);
-unsigned int dc_get_target_backlight_pwm(struct dc *dc);
#if defined(CONFIG_DRM_AMD_DC_HDCP)
/*
diff --git a/drivers/gpu/drm/amd/display/dc/dc_link.h b/drivers/gpu/drm/amd/display/dc/dc_link.h
index 34c6527c7c3f..72b22dd50f0d 100644
--- a/drivers/gpu/drm/amd/display/dc/dc_link.h
+++ b/drivers/gpu/drm/amd/display/dc/dc_link.h
@@ -217,6 +217,8 @@ bool dc_link_set_default_brightness_aux(struct dc_link *link);
int dc_link_get_backlight_level(const struct dc_link *dc_link);
+int dc_link_get_target_backlight_pwm(const struct dc_link *link);
+
bool dc_link_set_abm_disable(const struct dc_link *dc_link);
bool dc_link_set_psr_allow_active(struct dc_link *dc_link, bool enable, bool wait);
--
2.26.0
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