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mmc: tegra: add pm_flags

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Enable fast bcm4329 WIFI suspend/resume on Tegra2 board.

This patch allows the mach-tegra support to tell the tegra MMC host
controller to NOT turn off power for the MMC controller the WIFI part
lives behind.  Thus bcm4329 firmware doesn't need to be reloaded.

Signed-off-by: Venkat Rao <vrao@broadcom.com>
Tested-by: Grant Grundler <grundler@chromium.org>
Reviewed-by: Olof Johansson <olof@lixom.net>
Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Chris Ball <cjb@laptop.org>
This commit is contained in:
Venkat Rao 2011-03-25 20:37:47 -04:00 committed by Chris Ball
parent 0b38c4ebf0
commit c7f409e39e
2 changed files with 3 additions and 0 deletions
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1
arch/arm/mach-tegra/include/mach/sdhci.h
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@ -24,6 +24,7 @@ struct tegra_sdhci_platform_data {
int wp_gpio;
int power_gpio;
int is_8bit;
int pm_flags;
};
#endif

2
drivers/mmc/host/sdhci-tegra.c
View file

@ -184,6 +184,8 @@ static int tegra_sdhci_pltfm_init(struct sdhci_host *host,
clk_enable(clk);
pltfm_host->clk = clk;
host->mmc->pm_caps = plat->pm_flags;
if (plat->is_8bit)
host->mmc->caps |= MMC_CAP_8_BIT_DATA;