[PATCH 0/2] mmc: sdhci/sdhci-pxa: add support for hardware clock gating callback

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Patch set 11/12

[PATCH 1/2] mmc: add support for H/W clock gating of SD controller
This code extends software clock gating in the MMC layer by adding the ability
to indicate that the SD controller supports hardware clock gating.

Hardware clock gating is enabled by setting the MMC capability
MMC_CAP_HW_CLOCK_GATING in the SD driver.

eg: host->mmc->caps |= MMC_CAP_HW_CLOCK_GATING

The approach follows the suggestion of Nico Pitre.

SD/MMC/eMMC cards use dynamic clocks
SDIO uses continuous clocks to properly detect SDIO card interrupts

The code has been tested using marvell linux and linux-next for MMP2.
The Marvell pxa controllers support H/W clock gating.

[PATCH 2/2] sdhci: sdhci-pxa: add support for hardware clock gating callback

enable controller caps to support h/w clock gating--
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