linux-kernel - [PATCH v2 2/5] clk: qcom: dispcc-sm8250: Add RETAIN_FF_ENABLE flag for mdss

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Message-Id: <20221102090140.965450-3-robert.foss@linaro.org>
Date:   Wed,  2 Nov 2022 10:01:37 +0100
From:   Robert Foss <robert.foss@...aro.org>
To:     agross@...nel.org, bjorn.andersson@...aro.org,
        konrad.dybcio@...ainline.org, mturquette@...libre.com,
        sboyd@...nel.org, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, linux-arm-msm@...r.kernel.org,
        linux-clk@...r.kernel.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org,
        Bjorn Andersson <quic_bjorande@...cinc.com>,
        dmitry.baryshkov@...aro.org, Jonathan Marek <jonathan@...ek.ca>
Cc:     Robert Foss <robert.foss@...aro.org>
Subject: [PATCH v2 2/5] clk: qcom: dispcc-sm8250: Add RETAIN_FF_ENABLE flag for mdss_gdsc

All SoC supported by this driver supports the RETAIN_FF_ENABLE flag,
so it should be enabled here.

This feature enables registers to maintain their state after
dis/re-enabling the GDSC.

Signed-off-by: Robert Foss <robert.foss@...aro.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@...ainline.org>
---
 drivers/clk/qcom/dispcc-sm8250.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/clk/qcom/dispcc-sm8250.c b/drivers/clk/qcom/dispcc-sm8250.c
index 180ac2726f7e..a7606580cf22 100644
--- a/drivers/clk/qcom/dispcc-sm8250.c
+++ b/drivers/clk/qcom/dispcc-sm8250.c
@@ -1137,7 +1137,7 @@ static struct gdsc mdss_gdsc = {
 		.name = "mdss_gdsc",
 	},
 	.pwrsts = PWRSTS_OFF_ON,
-	.flags = HW_CTRL,
+	.flags = HW_CTRL | RETAIN_FF_ENABLE,
 };
 
 static struct clk_regmap *disp_cc_sm8250_clocks[] = {
-- 
2.34.1