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From: "Raju P.L.S.S.S.N" <rplsssn@codeaurora.org>
To: andy.gross@linaro.org, david.brown@linaro.org,
	linux-arm-msm@vger.kernel.org, linux-soc@vger.kernel.org
Cc: rnayak@codeaurora.org, bjorn.andersson@linaro.org,
	linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org,
	sboyd@kernel.org, evgreen@chromium.org, dianders@chromium.org,
	mka@chromium.org, ilina@codeaurora.org,
	"Raju P.L.S.S.S.N" <rplsssn@codeaurora.org>
Subject: [PATCH RESEND] drivers: qcom: rpmh: avoid sending sleep/wake sets immediately
Date: Tue, 23 Oct 2018 22:59:08 +0530	[thread overview]
Message-ID: <1540315748-29158-1-git-send-email-rplsssn@codeaurora.org> (raw)

Fix the redundant call being made to send the sleep and wake requests
immediately to the controller.

As per the patch[1], the sleep and wake request votes are cached in rpmh
controller and sent during rpmh_flush(). These requests needs to be sent
only during entry of deeper system low power modes or suspend.

[1]https://patchwork.kernel.org/patch/10477533/

Signed-off-by: Raju P.L.S.S.S.N <rplsssn@codeaurora.org>
Reviewed-by: Lina Iyer <ilina@codeaurora.org>
---
 drivers/soc/qcom/rpmh.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/soc/qcom/rpmh.c b/drivers/soc/qcom/rpmh.c
index e6e98d4..877fe78 100644
--- a/drivers/soc/qcom/rpmh.c
+++ b/drivers/soc/qcom/rpmh.c
@@ -228,9 +228,8 @@ static int __rpmh_write(const struct device *dev, enum rpmh_state state,
 		WARN_ON(irqs_disabled());
 		ret = rpmh_rsc_send_data(ctrlr_to_drv(ctrlr), &rpm_msg->msg);
 	} else {
-		ret = rpmh_rsc_write_ctrl_data(ctrlr_to_drv(ctrlr),
-				&rpm_msg->msg);
 		/* Clean up our call by spoofing tx_done */
+		ret = 0;
 		rpmh_tx_done(&rpm_msg->msg, ret);
 	}
 
-- 
QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member
of the Code Aurora Forum, hosted by The Linux Foundation.


             reply	other threads:[~2018-10-23 17:29 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-10-23 17:29 Raju P.L.S.S.S.N [this message]
2018-10-24 15:50 ` [PATCH RESEND] drivers: qcom: rpmh: avoid sending sleep/wake sets immediately Evan Green
2018-10-24 17:04 ` Lina Iyer

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