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Commit c1cbf5c4 authored by Asutosh Das's avatar Asutosh Das
Browse files

mmc: quirks: enable clock gating for AR6004 card 



This patch whitelists the AR6004 card for clock-gating.
The controller supports asynchronous interrupt functionality
which enables to receive interrupts from the card when clocks
are off. Hence, clocks can be turned off when idle.

This patch whitelists the card, to let the clock-gating
framework gate the clock during idle time.

Change-Id: I651f86e42595cc82f99093c06ee220a1d0ec95a9
Signed-off-by: default avatarAsutosh Das <asutoshd@codeaurora.org>
parent ee498e28

drivers/mmc/core/quirks.c

+14 −0
Original line number Diff line number Diff line
@@ -50,6 +50,14 @@ 
#define SDIO_DEVICE_ID_MSM_QCA_AR6003_2	0x301

#endif



#ifndef SDIO_DEVICE_ID_MSM_QCA_AR6004_1

#define SDIO_DEVICE_ID_MSM_QCA_AR6004_1	0x400

#endif



#ifndef SDIO_DEVICE_ID_MSM_QCA_AR6004_2

#define SDIO_DEVICE_ID_MSM_QCA_AR6004_2	0x401

#endif



/*

 * This hook just adds a quirk for all sdio devices

 */
@@ -78,6 +86,12 @@ static const struct mmc_fixup mmc_fixup_methods[] = { 
	SDIO_FIXUP(SDIO_VENDOR_ID_MSM_QCA, SDIO_DEVICE_ID_MSM_QCA_AR6003_2,

		   remove_quirk, MMC_QUIRK_BROKEN_CLK_GATING),



	SDIO_FIXUP(SDIO_VENDOR_ID_MSM_QCA, SDIO_DEVICE_ID_MSM_QCA_AR6004_1,

		   remove_quirk, MMC_QUIRK_BROKEN_CLK_GATING),



	SDIO_FIXUP(SDIO_VENDOR_ID_MSM_QCA, SDIO_DEVICE_ID_MSM_QCA_AR6004_2,

		   remove_quirk, MMC_QUIRK_BROKEN_CLK_GATING),



	SDIO_FIXUP(SDIO_VENDOR_ID_TI, SDIO_DEVICE_ID_TI_WL1271,

		   add_quirk, MMC_QUIRK_NONSTD_FUNC_IF),