linux-kernel - Re: [PATCH] mfd: rk808: Always use poweroff when requested

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Date:   Mon, 09 Dec 2019 13:32:38 +0100
From:   Heiko Stübner <heiko@...ech.de>
To:     Soeren Moch <smoch@....de>
Cc:     Lee Jones <lee.jones@...aro.org>,
        linux-arm-kernel@...ts.infradead.org,
        linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] mfd: rk808: Always use poweroff when requested

Am Montag, 9. Dezember 2019, 12:57:46 CET schrieb Soeren Moch:
> With the device tree property "rockchip,system-power-controller" we
> explicitly request to use this PMIC to power off the system. So always
> register our poweroff function, even if some other handler (probably
> PSCI poweroff) was registered before.
> 
> Signed-off-by: Soeren Moch <smoch@....de>

Sounds very sensible
Reviewed-by: Heiko Stuebner <heiko@...ech.de>


> ---
> Cc: Lee Jones <lee.jones@...aro.org>
> Cc: Heiko Stuebner <heiko@...ech.de>
> Cc: linux-arm-kernel@...ts.infradead.org
> Cc: linux-rockchip@...ts.infradead.org
> Cc: linux-kernel@...r.kernel.org
> ---
>  drivers/mfd/rk808.c | 11 ++---------
>  1 file changed, 2 insertions(+), 9 deletions(-)
> 
> diff --git a/drivers/mfd/rk808.c b/drivers/mfd/rk808.c
> index a69a6742ecdc..616e44e7ef98 100644
> --- a/drivers/mfd/rk808.c
> +++ b/drivers/mfd/rk808.c
> @@ -550,7 +550,7 @@ static int rk808_probe(struct i2c_client *client,
>  	const struct mfd_cell *cells;
>  	int nr_pre_init_regs;
>  	int nr_cells;
> -	int pm_off = 0, msb, lsb;
> +	int msb, lsb;
>  	unsigned char pmic_id_msb, pmic_id_lsb;
>  	int ret;
>  	int i;
> @@ -674,16 +674,9 @@ static int rk808_probe(struct i2c_client *client,
>  		goto err_irq;
>  	}
> 
> -	pm_off = of_property_read_bool(np,
> -				"rockchip,system-power-controller");
> -	if (pm_off && !pm_power_off) {
> +	if (of_property_read_bool(np, "rockchip,system-power-controller")) {
>  		rk808_i2c_client = client;
>  		pm_power_off = rk808->pm_pwroff_fn;
> -	}
> -
> -	if (pm_off && !pm_power_off_prepare) {
> -		if (!rk808_i2c_client)
> -			rk808_i2c_client = client;
>  		pm_power_off_prepare = rk808->pm_pwroff_prep_fn;
>  	}
> 
> --
> 2.17.1
>