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CONFIG_MMC_CLKGATE: MMC host clock gating

General informations

The Linux kernel configuration item CONFIG_MMC_CLKGATE has multiple definitions:

MMC host clock gating (EXPERIMENTAL) found in drivers/mmc/core/Kconfig

The configuration item CONFIG_MMC_CLKGATE:

Help text

This will attempt to aggressively gate the clock to the MMC card. This is done to save power due to gating off the logic and bus noise when the MMC card is not in use. Your host driver has to support handling this in order for it to be of any use.

If unsure, say N.

MMC host clock gating found in drivers/mmc/core/Kconfig

The configuration item CONFIG_MMC_CLKGATE:

Help text

This will attempt to aggressively gate the clock to the MMC card. This is done to save power due to gating off the logic and bus noise when the MMC card is not in use. Your host driver has to support handling this in order for it to be of any use.

If unsure, say N.

Hardware

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