Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755150Ab3EVRsL (ORCPT ); Wed, 22 May 2013 13:48:11 -0400 Received: from mail-ob0-f177.google.com ([209.85.214.177]:47976 "EHLO mail-ob0-f177.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752218Ab3EVRsH (ORCPT ); Wed, 22 May 2013 13:48:07 -0400 From: "Felipe F. Tonello" To: linux-mmc@vger.kernel.org Cc: ben-linux@fluff.org, cjb@laptop.org, arnd@arndb.de, linux-kernel@vger.kernel.org, "Felipe F. Tonello" Subject: [PATCH 1/2] mmc: sdhci: Added set_power sdhci_ops handler. Date: Wed, 22 May 2013 10:47:11 -0700 Message-Id: <1369244832-23868-2-git-send-email-eu@felipetonello.com> X-Mailer: git-send-email 1.8.1.4 In-Reply-To: <1369244832-23868-1-git-send-email-eu@felipetonello.com> References: <1369244832-23868-1-git-send-email-eu@felipetonello.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1746 Lines: 57 From: "Felipe F. Tonello" 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 --- 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 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/