From: AngeloGioacchino Del Regno Date: Sat, 11 Sep 2021 16:39:18 +0000 (+0200) Subject: drm/msm/dpu: Add a function to retrieve the current CTL status X-Git-Tag: v6.6.17~7631^2^2~36 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=787067989c31971e0fbbaf910e6c5ac0d4f41d64;p=platform%2Fkernel%2Flinux-rpi.git drm/msm/dpu: Add a function to retrieve the current CTL status Add a function that returns whether the requested CTL is active or not: this will be used in a later commit to fix command mode panel issues. Signed-off-by: AngeloGioacchino Del Regno Link: https://lore.kernel.org/r/20210911163919.47173-1-angelogioacchino.delregno@somainline.org Signed-off-by: Dmitry Baryshkov --- diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c index 02da9ec..3584f5e 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c @@ -92,6 +92,11 @@ static inline void dpu_hw_ctl_trigger_start(struct dpu_hw_ctl *ctx) DPU_REG_WRITE(&ctx->hw, CTL_START, 0x1); } +static inline bool dpu_hw_ctl_is_started(struct dpu_hw_ctl *ctx) +{ + return !!(DPU_REG_READ(&ctx->hw, CTL_START) & BIT(0)); +} + static inline void dpu_hw_ctl_trigger_pending(struct dpu_hw_ctl *ctx) { trace_dpu_hw_ctl_trigger_prepare(ctx->pending_flush_mask, @@ -587,6 +592,7 @@ static void _setup_ctl_ops(struct dpu_hw_ctl_ops *ops, ops->get_pending_flush = dpu_hw_ctl_get_pending_flush; ops->get_flush_register = dpu_hw_ctl_get_flush_register; ops->trigger_start = dpu_hw_ctl_trigger_start; + ops->is_started = dpu_hw_ctl_is_started; ops->trigger_pending = dpu_hw_ctl_trigger_pending; ops->reset = dpu_hw_ctl_reset_control; ops->wait_reset_status = dpu_hw_ctl_wait_reset_status; diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.h index 806c171..ac15444 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.h +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.h @@ -62,6 +62,13 @@ struct dpu_hw_ctl_ops { void (*trigger_start)(struct dpu_hw_ctl *ctx); /** + * check if the ctl is started + * @ctx : ctl path ctx pointer + * @Return: true if started, false if stopped + */ + bool (*is_started)(struct dpu_hw_ctl *ctx); + + /** * kickoff prepare is in progress hw operation for sw * controlled interfaces: DSI cmd mode and WB interface * are SW controlled