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[12/12] mmc: core: Add DT-bindings for MMC_CAP2_FULL_PWR_CYCLE

Message ID 1370876627-13439-13-git-send-email-ulf.hansson@stericsson.com (mailing list archive)
State New, archived
Headers show

Commit Message

Ulf Hansson June 10, 2013, 3:03 p.m. UTC 
From: Ulf Hansson <ulf.hansson@linaro.org>

The DT-binding for MMC_CAP2_FULL_PWR_CYCLE, is used to indicate whether
it is possible to perform a full power cycle of the card.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
---
 Documentation/devicetree/bindings/mmc/mmc.txt |    1 +
 drivers/mmc/core/host.c                       |    2 ++
 2 files changed, 3 insertions(+)
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Patch

diff --git a/Documentation/devicetree/bindings/mmc/mmc.txt b/Documentation/devicetree/bindings/mmc/mmc.txt
index 85aada2..458b57f 100644
--- a/Documentation/devicetree/bindings/mmc/mmc.txt
+++ b/Documentation/devicetree/bindings/mmc/mmc.txt
@@ -28,6 +28,7 @@  Optional properties:
 - cap-mmc-highspeed: MMC high-speed timing is supported
 - cap-power-off-card: powering off the card is safe
 - cap-sdio-irq: enable SDIO IRQ signalling on this interface
+- full-pwr-cycle: full power cycle of the card is supported
 
 *NOTE* on CD and WP polarity. To use common for all SD/MMC host controllers line
 polarity properties, we have to fix the meaning of the "normal" and "inverted"
diff --git a/drivers/mmc/core/host.c b/drivers/mmc/core/host.c
index 2a3593d..17d8b37 100644
--- a/drivers/mmc/core/host.c
+++ b/drivers/mmc/core/host.c
@@ -409,6 +409,8 @@  void mmc_of_parse(struct mmc_host *host)
 		host->caps |= MMC_CAP_POWER_OFF_CARD;
 	if (of_find_property(np, "cap-sdio-irq", &len))
 		host->caps |= MMC_CAP_SDIO_IRQ;
+	if (of_find_property(np, "full-pwr-cycle", &len))
+		host->caps2 |= MMC_CAP2_FULL_PWR_CYCLE;
 	if (of_find_property(np, "keep-power-in-suspend", &len))
 		host->pm_caps |= MMC_PM_KEEP_POWER;
 	if (of_find_property(np, "enable-sdio-wakeup", &len))