[PATCH 1/3] soc: qcom: rpmh: Update dirty flag only when data changes

[Maulik Shah]

Currently rpmh ctrlr dirty flag is set for all cases regardless
of data is really changed or not.

Add changes to update it when data is updated to new values.

Signed-off-by: Maulik Shah <mkshah@xxxxxxxxxxxxxx>
---
 drivers/soc/qcom/rpmh.c | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/drivers/soc/qcom/rpmh.c b/drivers/soc/qcom/rpmh.c
index 035091f..c3d6f00 100644
--- a/drivers/soc/qcom/rpmh.c
+++ b/drivers/soc/qcom/rpmh.c
@@ -139,20 +139,27 @@ static struct cache_req *cache_rpm_request(struct rpmh_ctrlr *ctrlr,
 existing:
 	switch (state) {
 	case RPMH_ACTIVE_ONLY_STATE:
-		if (req->sleep_val != UINT_MAX)
+		if (req->sleep_val != UINT_MAX) {
 			req->wake_val = cmd->data;
+			ctrlr->dirty = true;
+		}
 		break;
 	case RPMH_WAKE_ONLY_STATE:
-		req->wake_val = cmd->data;
+		if (req->wake_val != cmd->data) {
+			req->wake_val = cmd->data;
+			ctrlr->dirty = true;
+		}
 		break;
 	case RPMH_SLEEP_STATE:
-		req->sleep_val = cmd->data;
+		if (req->sleep_val != cmd->data) {
+			req->sleep_val = cmd->data;
+			ctrlr->dirty = true;
+		}
 		break;
 	default:
 		break;
 	}
 
-	ctrlr->dirty = true;
 unlock:
 	spin_unlock_irqrestore(&ctrlr->cache_lock, flags);
 
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