diff options
Diffstat (limited to 'extras/recipes-kernel/linux/linux-omap-2.6.39/sakoman/0012-Don-t-turn-SDIO-cards-off-to-save-power.-Doing-so-wi.patch')
| -rw-r--r-- | extras/recipes-kernel/linux/linux-omap-2.6.39/sakoman/0012-Don-t-turn-SDIO-cards-off-to-save-power.-Doing-so-wi.patch | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/extras/recipes-kernel/linux/linux-omap-2.6.39/sakoman/0012-Don-t-turn-SDIO-cards-off-to-save-power.-Doing-so-wi.patch b/extras/recipes-kernel/linux/linux-omap-2.6.39/sakoman/0012-Don-t-turn-SDIO-cards-off-to-save-power.-Doing-so-wi.patch new file mode 100644 index 00000000..1c86b22d --- /dev/null +++ b/extras/recipes-kernel/linux/linux-omap-2.6.39/sakoman/0012-Don-t-turn-SDIO-cards-off-to-save-power.-Doing-so-wi.patch @@ -0,0 +1,51 @@ +From 75d9413d575f724e1f7c006fdef374fb1c200346 Mon Sep 17 00:00:00 2001 +From: David Vrabel <david.vrabel@csr.com> +Date: Fri, 2 Apr 2010 08:41:47 -0700 +Subject: [PATCH 12/32] Don't turn SDIO cards off to save power. Doing so will lose all internal state in the card. + +Signed-off-by: David Vrabel <david.vrabel@csr.com> +--- + drivers/mmc/host/omap_hsmmc.c | 12 ++++++++---- + 1 files changed, 8 insertions(+), 4 deletions(-) + +diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c +index 15a023b..83f93ab 100644 +--- a/drivers/mmc/host/omap_hsmmc.c ++++ b/drivers/mmc/host/omap_hsmmc.c +@@ -29,6 +29,7 @@ + #include <linux/mmc/host.h> + #include <linux/mmc/core.h> + #include <linux/mmc/mmc.h> ++#include <linux/mmc/card.h> + #include <linux/io.h> + #include <linux/semaphore.h> + #include <linux/gpio.h> +@@ -1760,8 +1761,12 @@ static int omap_hsmmc_sleep_to_off(struct omap_hsmmc_host *host) + mmc_slot(host).card_detect || + (mmc_slot(host).get_cover_state && + mmc_slot(host).get_cover_state(host->dev, host->slot_id)))) { +- mmc_release_host(host->mmc); +- return 0; ++ goto out; ++ } ++ ++ /* Don't turn SDIO cards off. */ ++ if (host->mmc->card && mmc_card_sdio(host->mmc->card)) { ++ goto out; + } + + mmc_slot(host).set_power(host->dev, host->slot_id, 0, 0); +@@ -1772,9 +1777,8 @@ static int omap_hsmmc_sleep_to_off(struct omap_hsmmc_host *host) + host->dpm_state == CARDSLEEP ? "CARDSLEEP" : "REGSLEEP"); + + host->dpm_state = OFF; +- ++out: + mmc_release_host(host->mmc); +- + return 0; + } + +-- +1.6.6.1 + |