Video decoder (venus) was broken on msm8998. PH found crude work-around: Drop venus_sys_set_power_control() call. Bryan suggested proper fix: Set required register offsets in venus GDSC structs. Set HW_CTRL flag. GDSC = Globally Distributed Switch Controller Use same code as mmcc-msm8996 with: s/venus_gdsc/video_top_gdsc/ s/venus_core0_gdsc/video_subcore0_gdsc/ s/venus_core1_gdsc/video_subcore1_gdsc/ https://git.codelinaro.org/clo/la/kernel/msm-4.4/-/blob/caf_migration/kernel.lnx.4.4.r38-rel/include/dt-bindings/clock/msm-clocks-hwio-8996.h https://git.codelinaro.org/clo/la/kernel/msm-4.4/-/blob/caf_migration/kernel.lnx.4.4.r38-rel/include/dt-bindings/clock/msm-clocks-hwio-8998.h 0x1024 = MMSS_VIDEO GDSCR (undocumented) 0x1028 = MMSS_VIDEO_CORE_CBCR 0x1030 = MMSS_VIDEO_AHB_CBCR 0x1034 = MMSS_VIDEO_AXI_CBCR 0x1038 = MMSS_VIDEO_MAXI_CBCR 0x1040 = MMSS_VIDEO_SUBCORE0 GDSCR (undocumented) 0x1044 = MMSS_VIDEO_SUBCORE1 GDSCR (undocumented) 0x1048 = MMSS_VIDEO_SUBCORE0_CBCR 0x104c = MMSS_VIDEO_SUBCORE1_CBCR Suggested-by: Bryan O'Donoghue <bryan.odonoghue@xxxxxxxxxx> Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@xxxxxxxxxx> Signed-off-by: Marc Gonzalez <mgonzalez@xxxxxxxxxx> --- drivers/clk/qcom/mmcc-msm8998.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/clk/qcom/mmcc-msm8998.c b/drivers/clk/qcom/mmcc-msm8998.c index 1180e48c687ac..275fb3b71ede4 100644 --- a/drivers/clk/qcom/mmcc-msm8998.c +++ b/drivers/clk/qcom/mmcc-msm8998.c @@ -2535,6 +2535,8 @@ static struct clk_branch vmem_ahb_clk = { static struct gdsc video_top_gdsc = { .gdscr = 0x1024, + .cxcs = (unsigned int []){ 0x1028, 0x1034, 0x1038 }, + .cxc_count = 3, .pd = { .name = "video_top", }, @@ -2543,20 +2545,26 @@ static struct gdsc video_top_gdsc = { static struct gdsc video_subcore0_gdsc = { .gdscr = 0x1040, + .cxcs = (unsigned int []){ 0x1048 }, + .cxc_count = 1, .pd = { .name = "video_subcore0", }, .parent = &video_top_gdsc.pd, .pwrsts = PWRSTS_OFF_ON, + .flags = HW_CTRL, }; static struct gdsc video_subcore1_gdsc = { .gdscr = 0x1044, + .cxcs = (unsigned int []){ 0x104c }, + .cxc_count = 1, .pd = { .name = "video_subcore1", }, .parent = &video_top_gdsc.pd, .pwrsts = PWRSTS_OFF_ON, + .flags = HW_CTRL, }; static struct gdsc mdss_gdsc = { -- 2.34.1
