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Message-ID: <20181105023152.pldy2i7rvsysijha@vireshk-i7>
Date: Mon, 5 Nov 2018 08:01:52 +0530
From: Viresh Kumar <viresh.kumar@...aro.org>
To: Anson Huang <anson.huang@....com>
Cc: "rjw@...ysocki.net" <rjw@...ysocki.net>,
"linux-pm@...r.kernel.org" <linux-pm@...r.kernel.org>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
dl-linux-imx <linux-imx@....com>
Subject: Re: [PATCH] cpufreq: imx6q: add return value check for voltage scale
On 05-11-18, 00:59, Anson Huang wrote:
> Add return value check for voltage scale when ARM clock
> rate change fail.
>
> Signed-off-by: Anson Huang <Anson.Huang@....com>
> ---
> drivers/cpufreq/imx6q-cpufreq.c | 7 ++++++-
> 1 file changed, 6 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/cpufreq/imx6q-cpufreq.c b/drivers/cpufreq/imx6q-cpufreq.c
> index 8cfee0a..d8c3595 100644
> --- a/drivers/cpufreq/imx6q-cpufreq.c
> +++ b/drivers/cpufreq/imx6q-cpufreq.c
> @@ -160,8 +160,13 @@ static int imx6q_set_target(struct cpufreq_policy *policy, unsigned int index)
> /* Ensure the arm clock divider is what we expect */
> ret = clk_set_rate(clks[ARM].clk, new_freq * 1000);
> if (ret) {
> + int ret1;
> +
> dev_err(cpu_dev, "failed to set clock rate: %d\n", ret);
> - regulator_set_voltage_tol(arm_reg, volt_old, 0);
> + ret1 = regulator_set_voltage_tol(arm_reg, volt_old, 0);
> + if (ret1)
> + dev_warn(cpu_dev,
> + "failed to restore vddarm voltage: %d\n", ret1);
> return ret;
> }
>
Acked-by: Viresh Kumar <viresh.kumar@...aro.org>
--
viresh
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