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 
<angelogioacchino.delre...@somainline.org>
---
 drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c | 6 ++++++
 drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.h | 7 +++++++
 2 files changed, 13 insertions(+)

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 64740ddb983e..3b6fd73eb3a8 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.c
@@ -91,6 +91,11 @@ 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,
@@ -579,6 +584,7 @@ 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 806c171e5df2..ac1544474022 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_ctl.h
@@ -61,6 +61,13 @@ 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
-- 
2.32.0

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