From: Kuogee Hsieh Date: Thu, 25 May 2023 17:40:52 +0000 (-0700) Subject: drm/msm/dpu: Guard PINGPONG DSC ops behind DPU_PINGPONG_DSC bit X-Git-Tag: v6.6.17~3937^2~4^2~176^3~18 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=108ff1417795eb991ce5c3af77c119e0841136f2;p=platform%2Fkernel%2Flinux-rpi.git drm/msm/dpu: Guard PINGPONG DSC ops behind DPU_PINGPONG_DSC bit DPU < 7.0.0 has DPU_PINGPONG_DSC feature bit set to indicate it requires both dpu_hw_pp_setup_dsc() and dpu_hw_pp_dsc_{enable,disable}() to be executed to complete DSC configuration if DSC hardware block is present. Hence test DPU_PINGPONG_DSC feature bit and assign DSC related functions to the ops of PINGPONG block accordingly if DPU_PINGPONG_DSC bit is set. Changes in v6: -- split patches, this patch has function handles DPU_PINGPONG_DSC bit Changes in v9: -- the original code of assigning dsc related functions to the ops of pingpong block without testing the DPU_PINGPONG_DSC feature bit was restored back due to rebase error which defeat the purpose of this patch. Remove those error code. Changes in v10: -- change commit title -- correct texts at changes in v9 Changes in v12: -- fixed length too long at Changes in v9 Signed-off-by: Kuogee Hsieh Reviewed-by: Dmitry Baryshkov Reviewed-by: Marijn Suijten Patchwork: https://patchwork.freedesktop.org/patch/539504/ Link: https://lore.kernel.org/r/1685036458-22683-5-git-send-email-quic_khsieh@quicinc.com Signed-off-by: Dmitry Baryshkov --- diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_pingpong.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_pingpong.c index 79e4576..437d9e6 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_pingpong.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_pingpong.c @@ -291,9 +291,12 @@ static void _setup_pingpong_ops(struct dpu_hw_pingpong *c, c->ops.get_line_count = dpu_hw_pp_get_line_count; c->ops.disable_autorefresh = dpu_hw_pp_disable_autorefresh; } - c->ops.setup_dsc = dpu_hw_pp_setup_dsc; - c->ops.enable_dsc = dpu_hw_pp_dsc_enable; - c->ops.disable_dsc = dpu_hw_pp_dsc_disable; + + if (test_bit(DPU_PINGPONG_DSC, &features)) { + c->ops.setup_dsc = dpu_hw_pp_setup_dsc; + c->ops.enable_dsc = dpu_hw_pp_dsc_enable; + c->ops.disable_dsc = dpu_hw_pp_dsc_disable; + } if (test_bit(DPU_PINGPONG_DITHER, &features)) c->ops.setup_dither = dpu_hw_pp_setup_dither;