diff options
| author | David Francis <David.Francis@amd.com> | 2018-11-26 11:38:33 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2018-11-26 15:47:53 -0500 |
| commit | bbf854dc3570eb0a2b9d851f21e363e1570c717e (patch) | |
| tree | 8054c47f49da1c8241373c6330dfbab136cd1917 /drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | |
| parent | 51f1f6f51712aade68cabb145ed8bab4a6c3997e (diff) | |
drm/amd/display: Load DMCU IRAM
DMCU IRAM must be loaded by the driver before DMCU
can function.
Move the IRAM code out of the shadows and into a new file
modules/power/power_helpers.c
The IRAM table contains the backlight curve and ABM parameters
Add this new file to the Makefiles
Call dmcu_load_iram in late init of DM
Move struct dmcu_version from dc.h to dmcu.h to allow
dmcu to be included on its own
Signed-off-by: David Francis <David.Francis@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c index cc293dbf3c72..1701225edc50 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -71,6 +71,7 @@ #endif #include "modules/inc/mod_freesync.h" +#include "modules/power/power_helpers.h" #define FIRMWARE_RAVEN_DMCU "amdgpu/raven_dmcu.bin" MODULE_FIRMWARE(FIRMWARE_RAVEN_DMCU); @@ -642,6 +643,26 @@ static int dm_late_init(void *handle) { struct amdgpu_device *adev = (struct amdgpu_device *)handle; + struct dmcu_iram_parameters params; + unsigned int linear_lut[16]; + int i; + struct dmcu *dmcu = adev->dm.dc->res_pool->dmcu; + bool ret; + + for (i = 0; i < 16; i++) + linear_lut[i] = 0xFFFF * i / 15; + + params.set = 0; + params.backlight_ramping_start = 0xCCCC; + params.backlight_ramping_reduction = 0xCCCCCCCC; + params.backlight_lut_array_size = 16; + params.backlight_lut_array = linear_lut; + + ret = dmcu_load_iram(dmcu, params); + + if (!ret) + return -EINVAL; + return detect_mst_link_for_all_connectors(adev->ddev); } |