linux-kernel - Re: [PATCH v6 05/14] mmc: sdhci: Export sdhci_start_signal_voltage

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Message-ID: <0648f4c1-6acf-00c3-bc5c-c7f029d1eec5@intel.com>
Date:   Wed, 22 Mar 2017 16:49:10 +0200
From:   Adrian Hunter <adrian.hunter@...el.com>
To:     Gregory CLEMENT <gregory.clement@...e-electrons.com>,
        Ulf Hansson <ulf.hansson@...aro.org>, linux-mmc@...r.kernel.org
Cc:     Jason Cooper <jason@...edaemon.net>, Andrew Lunn <andrew@...n.ch>,
        Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>,
        Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>,
        linux-arm-kernel@...ts.infradead.org,
        Mike Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...eaurora.org>, linux-clk@...r.kernel.org,
        linux-kernel@...r.kernel.org, Rob Herring <robh+dt@...nel.org>,
        devicetree@...r.kernel.org, Ziji Hu <huziji@...vell.com>,
        Jimmy Xu <zmxu@...vell.com>,
        Jisheng Zhang <jszhang@...vell.com>,
        Nadav Haklai <nadavh@...vell.com>, Ryan Gao <ygao@...vell.com>,
        Doug Jones <dougj@...vell.com>, Victor Gu <xigu@...vell.com>,
        "Wei(SOCP) Liu" <liuw@...vell.com>,
        Wilson Ding <dingwei@...vell.com>,
        Yehuda Yitschak <yehuday@...vell.com>,
        Marcin Wojtas <mw@...ihalf.com>,
        Hanna Hawa <hannah@...vell.com>,
        Kostya Porotchkin <kostap@...vell.com>
Subject: Re: [PATCH v6 05/14] mmc: sdhci: Export
 sdhci_start_signal_voltage_switch() in sdhci.c

On 14/02/17 19:01, Gregory CLEMENT wrote:
> From: Hu Ziji <huziji@...vell.com>
> 
> Export sdhci_start_signal_voltage_switch() from sdhci.c.
> Thus vendor sdhci driver can implement its own signal voltage
> switch routine.
> 
> Signed-off-by: Hu Ziji <huziji@...vell.com>
> Signed-off-by: Gregory CLEMENT <gregory.clement@...e-electrons.com>

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

> ---
>  drivers/mmc/host/sdhci.c | 5 +++--
>  drivers/mmc/host/sdhci.h | 2 ++
>  2 files changed, 5 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
> index 0e9ed0fadff9..d2338dc362f4 100644
> --- a/drivers/mmc/host/sdhci.c
> +++ b/drivers/mmc/host/sdhci.c
> @@ -1839,8 +1839,8 @@ static void sdhci_enable_sdio_irq(struct mmc_host *mmc, int enable)
>  	spin_unlock_irqrestore(&host->lock, flags);
>  }
>  
> -static int sdhci_start_signal_voltage_switch(struct mmc_host *mmc,
> -					     struct mmc_ios *ios)
> +int sdhci_start_signal_voltage_switch(struct mmc_host *mmc,
> +				      struct mmc_ios *ios)
>  {
>  	struct sdhci_host *host = mmc_priv(mmc);
>  	u16 ctrl;
> @@ -1932,6 +1932,7 @@ static int sdhci_start_signal_voltage_switch(struct mmc_host *mmc,
>  		return 0;
>  	}
>  }
> +EXPORT_SYMBOL_GPL(sdhci_start_signal_voltage_switch);
>  
>  static int sdhci_card_busy(struct mmc_host *mmc)
>  {
> diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h
> index 3563c0c384ca..e4a07543a12b 100644
> --- a/drivers/mmc/host/sdhci.h
> +++ b/drivers/mmc/host/sdhci.h
> @@ -692,6 +692,8 @@ void sdhci_reset(struct sdhci_host *host, u8 mask);
>  void sdhci_set_uhs_signaling(struct sdhci_host *host, unsigned timing);
>  int sdhci_execute_tuning(struct mmc_host *mmc, u32 opcode);
>  void sdhci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios);
> +int sdhci_start_signal_voltage_switch(struct mmc_host *mmc,
> +				      struct mmc_ios *ios);
>  
>  #ifdef CONFIG_PM
>  extern int sdhci_suspend_host(struct sdhci_host *host);
>