linux-kernel - Re: [PATCH v2 2/6] mfd: rk8xx: Specify restart mode

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Message-ID: <20230818160616.GA986605@google.com>
Date:   Fri, 18 Aug 2023 17:06:16 +0100
From:   Lee Jones <lee@...nel.org>
To:     Benjamin Bara <bbara93@...il.com>
Cc:     Thierry Reding <thierry.reding@...il.com>,
        Jonathan Hunter <jonathanh@...dia.com>,
        Tony Lindgren <tony@...mide.com>,
        Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Dmitry Osipenko <dmitry.osipenko@...labora.com>,
        peng.fan@....nxp.com, rafael.j.wysocki@...el.com,
        Jerome Neanne <jneanne@...libre.com>,
        linux-kernel@...r.kernel.org, linux-tegra@...r.kernel.org,
        linux-omap@...r.kernel.org,
        Benjamin Bara <benjamin.bara@...data.com>
Subject: Re: [PATCH v2 2/6] mfd: rk8xx: Specify restart mode

On Wed, 09 Aug 2023, Benjamin Bara wrote:

> From: Benjamin Bara <benjamin.bara@...data.com>
> 
> The current restart handler registration does not specify whether the
> restart is a cold or a warm one. Instead, cold ones are typically
> registered with a HIGH prio. Now, as do_kernel_restart() knows about the
> type, the priorization is implicitly done (cold restarts are executed
> first) and the reboot_mode kernel parameter (which is currently mostly
> ignored) can be respected.
> 
> Signed-off-by: Benjamin Bara <benjamin.bara@...data.com>
> ---
> v2:
> - improve commit message
> - use registration helper instead
> ---
>  drivers/mfd/rk8xx-core.c | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/mfd/rk8xx-core.c b/drivers/mfd/rk8xx-core.c
> index 11a831e92da8..7faf8e1189f7 100644
> --- a/drivers/mfd/rk8xx-core.c
> +++ b/drivers/mfd/rk8xx-core.c
> @@ -696,9 +696,9 @@ int rk8xx_probe(struct device *dev, int variant, unsigned int irq, struct regmap
>  		switch (rk808->variant) {
>  		case RK809_ID:
>  		case RK817_ID:
> -			ret = devm_register_sys_off_handler(dev,
> -							    SYS_OFF_MODE_RESTART, SYS_OFF_PRIO_HIGH,
> -							    &rk808_restart, rk808);
> +			ret = devm_register_cold_restart_handler(dev,
> +								 &rk808_restart,
> +								 rk808);

These wraps are now superfluous.

>  			if (ret)
>  				dev_warn(dev, "failed to register rst handler, %d\n", ret);
>  			break;
> 
> -- 
> 2.34.1
> 

-- 
Lee Jones [李琼斯]