linux-kernel - Re: [PATCH] cpufreq: imx6q: imx6ull should use the same flow as imx6ul

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Date:   Wed, 31 May 2017 09:30:13 +0530
From:   Viresh Kumar <viresh.kumar@...aro.org>
To:     Leonard Crestez <leonard.crestez@....com>
Cc:     "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Octavian Purdila <octavian.purdila@....com>,
        Shawn Guo <shawnguo@...nel.org>, Bai Ping <ping.bai@....com>,
        Lucas Stach <l.stach@...gutronix.de>,
        Fabio Estevam <fabio.estevam@....com>,
        linux-pm@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] cpufreq: imx6q: imx6ull should use the same flow as
 imx6ul

On 30-05-17, 18:57, Leonard Crestez wrote:
> From: Octavian Purdila <octavian.purdila@....com>
> 
> This fixes an issue with imx6ull where setting the frequency to 528Mhz
> would actually set the ARM clock to 324Mhz.
> 
> Signed-off-by: Octavian Purdila <octavian.purdila@....com>
> Signed-off-by: Leonard Crestez <leonard.crestez@....com>
> ---
>  drivers/cpufreq/imx6q-cpufreq.c | 6 ++++--
>  1 file changed, 4 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/cpufreq/imx6q-cpufreq.c b/drivers/cpufreq/imx6q-cpufreq.c
> index 9c13f09..b6edd3c 100644
> --- a/drivers/cpufreq/imx6q-cpufreq.c
> +++ b/drivers/cpufreq/imx6q-cpufreq.c
> @@ -101,7 +101,8 @@ static int imx6q_set_target(struct cpufreq_policy *policy, unsigned int index)
>  	 *  - Reprogram pll1_sys_clk and reparent pll1_sw_clk back to it
>  	 *  - Disable pll2_pfd2_396m_clk
>  	 */
> -	if (of_machine_is_compatible("fsl,imx6ul")) {
> +	if (of_machine_is_compatible("fsl,imx6ul") ||
> +	    of_machine_is_compatible("fsl,imx6ull")) {
>  		/*
>  		 * When changing pll1_sw_clk's parent to pll1_sys_clk,
>  		 * CPU may run at higher than 528MHz, this will lead to
> @@ -215,7 +216,8 @@ static int imx6q_cpufreq_probe(struct platform_device *pdev)
>  		goto put_clk;
>  	}
>  
> -	if (of_machine_is_compatible("fsl,imx6ul")) {
> +	if (of_machine_is_compatible("fsl,imx6ul") ||
> +	    of_machine_is_compatible("fsl,imx6ull")) {
>  		pll2_bus_clk = clk_get(cpu_dev, "pll2_bus");
>  		secondary_sel_clk = clk_get(cpu_dev, "secondary_sel");
>  		if (IS_ERR(pll2_bus_clk) || IS_ERR(secondary_sel_clk)) {

Acked-by: Viresh Kumar <viresh.kumar@...aro.org>

-- 
viresh