This patch series adds support to control ISP power and clocks using the Generic PM Domain (genpd). Its required to control the ISP HW power from external I2C driver to successfully probe the sensor device. Instead of using an exported symbols from ISP driver, enabling Generic PM Domain (genpd) support in amdgpu_isp device allows its child devices (amd_isp_capture, amd_isp_i2c_designware) to set power and clocks directly using PM method.
We need to add support in amdgpu_smu as well for amdgpu_isp device to set power / clocks when invoked from genpd. Though the below SMU messages are defined, the actual support to configure ISP is missing in SMU interface. PPSMC_MSG_PowerDownIspByTile PPSMC_MSG_PowerUpIspByTile PPSMC_MSG_SetHardMinIspiclkByFreq PPSMC_MSG_SetHardMinIspxclkByFreq Added support in SMU to control ISP power / clocks by updating the existing amdgpu_dpm_set_powergating_by_smu() and amdgpu_dpm_set_soft_freq_range(); and the underlying SOC specific SMU implementation for isp v4.1. Pratap Nirujogi (4): drm/amd/pm: Add support to set ISP Power drm/amd/pm: Add support to set min ISP clocks drm/amd/amdgpu: Add ISP Generic PM Domain (genpd) support drm/amd/amdgpu: Refine isp_v4_1_1 logging drivers/gpu/drm/amd/amdgpu/amdgpu_isp.h | 3 + drivers/gpu/drm/amd/amdgpu/isp_v4_1_1.c | 173 ++++++++++++++++-- .../gpu/drm/amd/include/kgd_pp_interface.h | 2 + drivers/gpu/drm/amd/pm/amdgpu_dpm.c | 15 +- drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c | 41 ++++- drivers/gpu/drm/amd/pm/swsmu/inc/amdgpu_smu.h | 9 +- .../inc/pmfw_if/smu14_driver_if_v14_0_0.h | 1 + drivers/gpu/drm/amd/pm/swsmu/inc/smu_types.h | 2 + .../drm/amd/pm/swsmu/smu14/smu_v14_0_0_ppt.c | 60 ++++-- 9 files changed, 264 insertions(+), 42 deletions(-) -- 2.43.0
