Messages in this thread Patch in this message | | | From | "Felipe F. Tonello" <> | Subject | [PATCH 1/2] mmc: sdhci: Added set_power sdhci_ops handler. | Date | Wed, 22 May 2013 10:47:11 -0700 |
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From: "Felipe F. Tonello" <eu@felipetonello.com>
This is useful for power managment purposes if a sdhci child host wants to turn off some other peripheral also.
Signed-off-by: Felipe F. Tonello <eu@felipetonello.com> --- drivers/mmc/host/sdhci.c | 8 ++++++++ drivers/mmc/host/sdhci.h | 1 + 2 files changed, 9 insertions(+)
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index 2ea429c..0a026c6 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -1244,6 +1244,10 @@ static int sdhci_set_power(struct sdhci_host *host, unsigned short power) u8 pwr = 0; if (power != (unsigned short)-1) { + + if (host->ops->set_power) + host->ops->set_power(host, true); + switch (1 << power) { case MMC_VDD_165_195: pwr = SDHCI_POWER_180; @@ -1259,6 +1263,10 @@ static int sdhci_set_power(struct sdhci_host *host, unsigned short power) default: BUG(); } + } else { + + if (host->ops->set_power) + host->ops->set_power(host, false); } if (host->pwr == pwr) diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h index 379e09d..293d56d 100644 --- a/drivers/mmc/host/sdhci.h +++ b/drivers/mmc/host/sdhci.h @@ -294,6 +294,7 @@ struct sdhci_ops { void (*platform_resume)(struct sdhci_host *host); void (*adma_workaround)(struct sdhci_host *host, u32 intmask); void (*platform_init)(struct sdhci_host *host); + void (*set_power)(struct sdhci_host *host, bool power); }; #ifdef CONFIG_MMC_SDHCI_IO_ACCESSORS -- 1.8.1.4
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