4323567934
In suspend mode it is important to save power. If the host is able to cut buth vcc and vccq, the MMC_CAP2_POWEROFF_NOTIFY shall be set. It will mean the card will be completely powered down at suspend and the power off notification cmd will be sent prior power down. It seems common not being able to cut both vcc and vccq for a host. In this situation we issue the sleep cmd in favor of the power off notification cmd, to save more power. While maintainng the above policy, we also want to make use of the power off notification in the shutdown sequence, even in the case were the host has not set MMC_CAP2_POWEROFF_NOTIFY, since we know vcc and vccq will regardless be cut. We accomplish this by always enabling the power off notification byte in the EXT_CSD and issue the power off notification when either MMC_CAP2_POWEROFF_NOTIFY is set or we are executing a shutdown. Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Chris Ball <cjb@laptop.org> |
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| .. | ||
| bus.c | ||
| bus.h | ||
| core.c | ||
| core.h | ||
| debugfs.c | ||
| host.c | ||
| host.h | ||
| Kconfig | ||
| Makefile | ||
| mmc_ops.c | ||
| mmc_ops.h | ||
| mmc.c | ||
| quirks.c | ||
| sd_ops.c | ||
| sd_ops.h | ||
| sd.c | ||
| sd.h | ||
| sdio_bus.c | ||
| sdio_bus.h | ||
| sdio_cis.c | ||
| sdio_cis.h | ||
| sdio_io.c | ||
| sdio_irq.c | ||
| sdio_ops.c | ||
| sdio_ops.h | ||
| sdio.c | ||
| slot-gpio.c | ||