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mmc: tmio: add actual clock support as option

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Some controller is supporting actual clock on SD_CLK_CTRL :: DIV[7:0].
Renesas SH-Mobile SDHI doesn't support,
but, Renesas R-Car SDHI supports it.
This patch adds new TMIO_MMC_CLK_ACTUAL flag for it.

[Kuninori Morimoto: tidyuped for upstreaming]

Tested-by: Nguyen Xuan Nui <nx-nui@jinso.co.jp>
Tested-by: Hiep Cao Minh <cm-hiep@jinso.co.jp>
Signed-off-by: Shinobu Uehara <shinobu.uehara.xc@renesas.com>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Shinobu Uehara 2014-08-24 20:03:00 -07:00 • committed by Ulf Hansson
parent b30d6958a0
commit da29fe2bf5
3 changed files with 14 additions and 2 deletions
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5
include/linux/mfd/tmio.h
View file

@ -99,6 +99,11 @@
*/
#define TMIO_MMC_HAVE_CTL_DMA_REG (1 << 9)
/*
* Some controllers allows to set SDx actual clock
*/
#define TMIO_MMC_CLK_ACTUAL (1 << 10)
int tmio_core_mmc_enable(void __iomem *cnf, int shift, unsigned long base);
int tmio_core_mmc_resume(void __iomem *cnf, int shift, unsigned long base);
void tmio_core_mmc_pwr(void __iomem *cnf, int shift, int state);