From: Jun Nie Date: Thu, 18 Sep 2025 13:28:58 +0000 (+0800) Subject: drm/msm/dpu: Use dedicated WB number definition X-Git-Tag: v6.19-rc1~157^2~6^2~51 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=aed75641425c5c9393803bae494666c37c9aad05;p=thirdparty%2Flinux.git drm/msm/dpu: Use dedicated WB number definition Currently MAX_CHANNELS_PER_ENC is defined as 2, because 2 channels are supported at most in one encoder. The case of 4 channels per encoder is to be added. To avoid breaking current WB usage case, use dedicated WB definition before 4 WB usage case is supported in future. Signed-off-by: Jun Nie Reviewed-by: Dmitry Baryshkov Reviewed-by: Jessica Zhang Patchwork: https://patchwork.freedesktop.org/patch/675410/ Link: https://lore.kernel.org/r/20250918-v6-16-rc2-quad-pipe-upstream-4-v16-6-ff6232e3472f@linaro.org Signed-off-by: Dmitry Baryshkov --- diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c index d0ed9e3a33892..9f3957f24c6a3 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c @@ -56,6 +56,7 @@ (MAX_H_TILES_PER_DISPLAY * NUM_PHYS_ENCODER_TYPES) #define MAX_CHANNELS_PER_ENC 2 +#define MAX_CWB_PER_ENC 2 #define IDLE_SHORT_TIMEOUT 1 @@ -182,7 +183,7 @@ struct dpu_encoder_virt { struct dpu_encoder_phys *cur_master; struct dpu_encoder_phys *cur_slave; struct dpu_hw_pingpong *hw_pp[MAX_CHANNELS_PER_ENC]; - struct dpu_hw_cwb *hw_cwb[MAX_CHANNELS_PER_ENC]; + struct dpu_hw_cwb *hw_cwb[MAX_CWB_PER_ENC]; struct dpu_hw_dsc *hw_dsc[MAX_CHANNELS_PER_ENC]; unsigned int dsc_mask; @@ -2386,7 +2387,7 @@ void dpu_encoder_helper_phys_setup_cwb(struct dpu_encoder_phys *phys_enc, */ cwb_cfg.input = INPUT_MODE_LM_OUT; - for (int i = 0; i < MAX_CHANNELS_PER_ENC; i++) { + for (int i = 0; i < MAX_CWB_PER_ENC; i++) { hw_cwb = dpu_enc->hw_cwb[i]; if (!hw_cwb) continue;