linux-kernel - Re: [PATCH v2 04/11] mmc: sdhci: at91: Use sdhci_set_power_and

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Date:   Mon, 9 Mar 2020 09:25:39 +0200
From:   Adrian Hunter <adrian.hunter@...el.com>
To:     Nicolas Saenz Julienne <nsaenzjulienne@...e.de>,
        linux-kernel@...r.kernel.org,
        Ludovic Desroches <ludovic.desroches@...rochip.com>,
        Nicolas Ferre <nicolas.ferre@...rochip.com>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>
Cc:     phil@...pberrypi.com, linux-mmc@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, f.fainelli@...il.com,
        stefan.wahren@...e.com, bcm-kernel-feedback-list@...adcom.com,
        linux-rpi-kernel@...ts.infradead.org,
        Ulf Hansson <ulf.hansson@...aro.org>
Subject: Re: [PATCH v2 04/11] mmc: sdhci: at91: Use
 sdhci_set_power_and_voltage()

On 6/03/20 7:44 pm, Nicolas Saenz Julienne wrote:
> The sdhci core provides a helper function with the same functionality as
> this controller's set_power() callback. Use it instead.
> 
> Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@...e.de>

Acked-by: Adrian Hunter <adrian.hunter@...el.com>

> ---
>  drivers/mmc/host/sdhci-of-at91.c | 18 +-----------------
>  1 file changed, 1 insertion(+), 17 deletions(-)
> 
> diff --git a/drivers/mmc/host/sdhci-of-at91.c b/drivers/mmc/host/sdhci-of-at91.c
> index ab2bd314a390..564a606f6729 100644
> --- a/drivers/mmc/host/sdhci-of-at91.c
> +++ b/drivers/mmc/host/sdhci-of-at91.c
> @@ -101,22 +101,6 @@ static void sdhci_at91_set_clock(struct sdhci_host *host, unsigned int clock)
>  	sdhci_writew(host, clk, SDHCI_CLOCK_CONTROL);
>  }
>  
> -/*
> - * In this specific implementation of the SDHCI controller, the power register
> - * needs to have a valid voltage set even when the power supply is managed by
> - * an external regulator.
> - */
> -static void sdhci_at91_set_power(struct sdhci_host *host, unsigned char mode,
> -		     unsigned short vdd)
> -{
> -	if (!IS_ERR(host->mmc->supply.vmmc)) {
> -		struct mmc_host *mmc = host->mmc;
> -
> -		mmc_regulator_set_ocr(mmc, mmc->supply.vmmc, vdd);
> -	}
> -	sdhci_set_power_noreg(host, mode, vdd);
> -}
> -
>  static void sdhci_at91_set_uhs_signaling(struct sdhci_host *host,
>  					 unsigned int timing)
>  {
> @@ -145,7 +129,7 @@ static const struct sdhci_ops sdhci_at91_sama5d2_ops = {
>  	.set_bus_width		= sdhci_set_bus_width,
>  	.reset			= sdhci_at91_reset,
>  	.set_uhs_signaling	= sdhci_at91_set_uhs_signaling,
> -	.set_power		= sdhci_at91_set_power,
> +	.set_power		= sdhci_set_power_and_bus_voltage,
>  };
>  
>  static const struct sdhci_pltfm_data sdhci_sama5d2_pdata = {
>