| Message ID | 1369244832-23868-3-git-send-email-eu@felipetonello.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
Hi Felipe, I didn't understand this patch, why need to add set_power? We can use to control the power with the fixed regulator. Then we can also use the regulator framework. And i know also control the module like wifi with rfkill. In set_power, what is it controlled? Best Regards, Jaehoon Chung On 05/23/2013 02:47 AM, Felipe F. Tonello wrote: > From: "Felipe F. Tonello" <eu@felipetonello.com> > > This is useful to turn off peripherals that are related to the mmc host. One > common case is when the wifi module is connected as an mmc card to the host. > > Signed-off-by: Felipe F. Tonello <eu@felipetonello.com> > --- > drivers/mmc/host/sdhci-s3c.c | 8 ++++++++ > include/linux/platform_data/mmc-sdhci-s3c.h | 1 + > 2 files changed, 9 insertions(+) > > diff --git a/drivers/mmc/host/sdhci-s3c.c b/drivers/mmc/host/sdhci-s3c.c > index c6f6246..f7e740c 100644 > --- a/drivers/mmc/host/sdhci-s3c.c > +++ b/drivers/mmc/host/sdhci-s3c.c > @@ -360,11 +360,19 @@ static int sdhci_s3c_platform_bus_width(struct sdhci_host *host, int width) > return 0; > } > > +static void sdhci_s3c_set_power(struct sdhci_host *host, bool power) > +{ > + struct sdhci_s3c *ourhost = to_s3c(host); > + if (ourhost->pdata->set_power) > + ourhost->pdata->set_power(power); > +} > + > static struct sdhci_ops sdhci_s3c_ops = { > .get_max_clock = sdhci_s3c_get_max_clk, > .set_clock = sdhci_s3c_set_clock, > .get_min_clock = sdhci_s3c_get_min_clock, > .platform_bus_width = sdhci_s3c_platform_bus_width, > + .set_power = sdhci_s3c_set_power, > }; > > static void sdhci_s3c_notify_change(struct platform_device *dev, int state) > diff --git a/include/linux/platform_data/mmc-sdhci-s3c.h b/include/linux/platform_data/mmc-sdhci-s3c.h > index 249f023..55be925 100644 > --- a/include/linux/platform_data/mmc-sdhci-s3c.h > +++ b/include/linux/platform_data/mmc-sdhci-s3c.h > @@ -50,6 +50,7 @@ struct s3c_sdhci_platdata { > int state)); > > void (*cfg_gpio)(struct platform_device *dev, int width); > + void (*set_power)(bool power); > }; > > > -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/drivers/mmc/host/sdhci-s3c.c b/drivers/mmc/host/sdhci-s3c.c index c6f6246..f7e740c 100644 --- a/drivers/mmc/host/sdhci-s3c.c +++ b/drivers/mmc/host/sdhci-s3c.c @@ -360,11 +360,19 @@ static int sdhci_s3c_platform_bus_width(struct sdhci_host *host, int width) return 0; } +static void sdhci_s3c_set_power(struct sdhci_host *host, bool power) +{ + struct sdhci_s3c *ourhost = to_s3c(host); + if (ourhost->pdata->set_power) + ourhost->pdata->set_power(power); +} + static struct sdhci_ops sdhci_s3c_ops = { .get_max_clock = sdhci_s3c_get_max_clk, .set_clock = sdhci_s3c_set_clock, .get_min_clock = sdhci_s3c_get_min_clock, .platform_bus_width = sdhci_s3c_platform_bus_width, + .set_power = sdhci_s3c_set_power, }; static void sdhci_s3c_notify_change(struct platform_device *dev, int state) diff --git a/include/linux/platform_data/mmc-sdhci-s3c.h b/include/linux/platform_data/mmc-sdhci-s3c.h index 249f023..55be925 100644 --- a/include/linux/platform_data/mmc-sdhci-s3c.h +++ b/include/linux/platform_data/mmc-sdhci-s3c.h @@ -50,6 +50,7 @@ struct s3c_sdhci_platdata { int state)); void (*cfg_gpio)(struct platform_device *dev, int width); + void (*set_power)(bool power); };