linux-kernel - Re: [PATCH v3 3/6] clocksource: timer-ti-dm: Implement cpu

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Message-ID: <5b7bd5f8-f4e3-b851-da3e-8f05386dce09@linaro.org>
Date:   Mon, 16 Mar 2020 11:51:35 +0100
From:   Daniel Lezcano <daniel.lezcano@...aro.org>
To:     Lokesh Vutla <lokeshvutla@...com>,
        Tony Lindgren <tony@...mide.com>,
        Thomas Gleixner <tglx@...utronix.de>
Cc:     Linux OMAP Mailing List <linux-omap@...r.kernel.org>,
        linux-kernel@...r.kernel.org,
        Thierry Reding <thierry.reding@...il.com>,
        Uwe Kleine-König <u.kleine-koenig@...gutronix.de>,
        linux-pwm@...r.kernel.org, Sekhar Nori <nsekhar@...com>,
        Tero Kristo <t-kristo@...com>
Subject: Re: [PATCH v3 3/6] clocksource: timer-ti-dm: Implement cpu_pm
 notifier for context save and restore

On 05/03/2020 09:27, Lokesh Vutla wrote:
> omap_dm_timer_enable() restores the entire context(including counter)
> based on 2 conditions:
> - If get_context_loss_count is populated and context is lost.
> - If get_context_loss_count is not populated update unconditionally.
> 
> Case2 has a side effect of updating the counter register even though
> context is not lost. When timer is configured in pwm mode, this is
> causing undesired behaviour in the pwm period.
> 
> Instead of using get_context_loss_count call back, implement cpu_pm
> notifier with context save and restore support. And delete the
> get_context_loss_count callback all together.
> 
> Suggested-by: Tony Lindgren <tony@...mide.com>
> Signed-off-by: Lokesh Vutla <lokeshvutla@...com>
> [tony@...mide.com: removed pm_runtime calls from cpuidle calls]
> Signed-off-by: Tony Lindgren <tony@...mide.com>
> ---

[ ... ]

> @@ -725,6 +728,12 @@ static int __maybe_unused omap_dm_timer_runtime_suspend(struct device *dev)
>  
>  	atomic_set(&timer->enabled, 0);
>  
> +	if (timer->capability & OMAP_TIMER_ALWON ||
> +	    !timer->func_base)
> +	    return 0;

WARNING: suspect code indent for conditional statements (8, 12)
#168: FILE: drivers/clocksource/timer-ti-dm.c:762:
+	if (timer->capability & OMAP_TIMER_ALWON ||
[...]
+	    return 0;


WARNING: Statements should start on a tabstop
#170: FILE: drivers/clocksource/timer-ti-dm.c:764:
+	    return 0;

[ ... ]


Mind to resend this patch with the warning fixed?

Thanks

  -- Daniel

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