linux-kernel - Re: [PATCH v3 2/3] mmc: tmio: Use MMC core APIs to control the vqmmc regulator

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Date: Wed, 26 Jun 2024 10:45:59 +0300
From: claudiu beznea <claudiu.beznea@...on.dev>
To: Prabhakar <prabhakar.csengg@...il.com>,
 Ulf Hansson <ulf.hansson@...aro.org>,
 Wolfram Sang <wsa+renesas@...g-engineering.com>,
 Geert Uytterhoeven <geert+renesas@...der.be>, Rob Herring <robh@...nel.org>,
 Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley
 <conor+dt@...nel.org>, Magnus Damm <magnus.damm@...il.com>,
 linux-mmc@...r.kernel.org
Cc: devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
 linux-renesas-soc@...r.kernel.org, Biju Das <biju.das.jz@...renesas.com>,
 Fabrizio Castro <fabrizio.castro.jz@...esas.com>,
 Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
Subject: Re: [PATCH v3 2/3] mmc: tmio: Use MMC core APIs to control the vqmmc
 regulator



On 24.06.2024 18:32, Prabhakar wrote:
> From: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
> 
> Use the mmc_regulator_enable_vqmmc() and mmc_regulator_disable_vqmmc() APIs
> to enable/disable the vqmmc regulator.
> 
> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
> Reviewed-by: Wolfram Sang <wsa+renesas@...g-engineering.com>
> Reviewed-by: Geert Uytterhoeven <geert+renesas@...der.be>\

Tested-by: Claudiu Beznea <claudiu.beznea.uj@...renesas.com> # on RZ/G3S

> ---
> v2->v3
> - Included RB tags
> 
> v1->v2
> - New patch
> ---
>  drivers/mmc/host/tmio_mmc_core.c | 7 +++----
>  1 file changed, 3 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/mmc/host/tmio_mmc_core.c b/drivers/mmc/host/tmio_mmc_core.c
> index 93e912afd3ae..2ec1a74c85bc 100644
> --- a/drivers/mmc/host/tmio_mmc_core.c
> +++ b/drivers/mmc/host/tmio_mmc_core.c
> @@ -897,8 +897,8 @@ static void tmio_mmc_power_on(struct tmio_mmc_host *host, unsigned short vdd)
>  	 * It seems, VccQ should be switched on after Vcc, this is also what the
>  	 * omap_hsmmc.c driver does.
>  	 */
> -	if (!IS_ERR(mmc->supply.vqmmc) && !ret) {
> -		ret = regulator_enable(mmc->supply.vqmmc);
> +	if (!ret) {
> +		ret = mmc_regulator_enable_vqmmc(mmc);
>  		usleep_range(200, 300);
>  	}
>  
> @@ -911,8 +911,7 @@ static void tmio_mmc_power_off(struct tmio_mmc_host *host)
>  {
>  	struct mmc_host *mmc = host->mmc;
>  
> -	if (!IS_ERR(mmc->supply.vqmmc))
> -		regulator_disable(mmc->supply.vqmmc);
> +	mmc_regulator_disable_vqmmc(mmc);
>  
>  	if (!IS_ERR(mmc->supply.vmmc))
>  		mmc_regulator_set_ocr(mmc, mmc->supply.vmmc, 0);