linux-kernel - [PATCH v4 3/9] clk: qcom: gdsc: Increase status poll timeout

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Date:   Wed, 30 Nov 2022 13:28:46 +0200
From:   Abel Vesa <abel.vesa@...aro.org>
To:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Mike Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>
Cc:     Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        devicetree@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        linux-clk@...r.kernel.org
Subject: [PATCH v4 3/9] clk: qcom: gdsc: Increase status poll timeout

The SM8550 GCC GDSCs need a higher timeout value when polling for status,
so increase it to 1500us, while leaving the delay between disable-enable
sequence for votable gdscs to stay the same.

Signed-off-by: Abel Vesa <abel.vesa@...aro.org>
---
 drivers/clk/qcom/gdsc.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/clk/qcom/gdsc.c b/drivers/clk/qcom/gdsc.c
index 0f21a8a767ac..9e4d6ce891aa 100644
--- a/drivers/clk/qcom/gdsc.c
+++ b/drivers/clk/qcom/gdsc.c
@@ -46,6 +46,7 @@
 #define RETAIN_MEM		BIT(14)
 #define RETAIN_PERIPH		BIT(13)
 
+#define STATUS_POLL_TIMEOUT_US	1500
 #define TIMEOUT_US		500
 
 #define domain_to_gdsc(domain) container_of(domain, struct gdsc, pd)
@@ -107,7 +108,7 @@ static int gdsc_poll_status(struct gdsc *sc, enum gdsc_status status)
 	do {
 		if (gdsc_check_status(sc, status))
 			return 0;
-	} while (ktime_us_delta(ktime_get(), start) < TIMEOUT_US);
+	} while (ktime_us_delta(ktime_get(), start) < STATUS_POLL_TIMEOUT_US);
 
 	if (gdsc_check_status(sc, status))
 		return 0;
-- 
2.34.1