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Commit 6483c1b5 authored by Philipp Zabel's avatar Philipp Zabel Committed by Samuel Ortiz
Browse files

mfd: asic3: add asic3_set_register common operation 



Used to configure single bits of the SDHWCTRL_SDCONF and EXTCF_RESET/SELECT
registers needed for DS1WM, MMC/SDIO and PCMCIA functionality.

Signed-off-by: default avatarPhilipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: default avatarSamuel Ortiz <sameo@linux.intel.com>
parent 9e5aca58

drivers/mfd/asic3.c

+15 −0
Original line number Diff line number Diff line
@@ -52,6 +52,21 @@ static inline u32 asic3_read_register(struct asic3 *asic, 
			(reg >> asic->bus_shift));

}



void asic3_set_register(struct asic3 *asic, u32 reg, u32 bits, bool set)

{

	unsigned long flags;

	u32 val;



	spin_lock_irqsave(&asic->lock, flags);

	val = asic3_read_register(asic, reg);

	if (set)

		val |= bits;

	else

		val &= ~bits;

	asic3_write_register(asic, reg, val);

	spin_unlock_irqrestore(&asic->lock, flags);

}



/* IRQs */

#define MAX_ASIC_ISR_LOOPS    20

#define ASIC3_GPIO_BASE_INCR \

include/linux/mfd/asic3.h

+5 −5
Original line number Diff line number Diff line
@@ -227,8 +227,8 @@ struct asic3_platform_data { 




/* Basic control of the SD ASIC */

#define ASIC3_SDHWCTRL_Base	0x0E00

#define ASIC3_SDHWCTRL_SDConf    0x00

#define ASIC3_SDHWCTRL_BASE     0x0E00

#define ASIC3_SDHWCTRL_SDCONF     0x00



#define ASIC3_SDHWCTRL_SUSPEND    (1 << 0)  /* 1=suspend all SD operations */

#define ASIC3_SDHWCTRL_CLKSEL     (1 << 1)  /* 1=SDICK, 0=HCLK */
@@ -242,10 +242,10 @@ struct asic3_platform_data { 
/* SD card power supply ctrl 1=enable */

#define ASIC3_SDHWCTRL_SDPWR      (1 << 6)



#define ASIC3_EXTCF_Base		0x1100

#define ASIC3_EXTCF_BASE        0x1100



#define ASIC3_EXTCF_Select         0x00

#define ASIC3_EXTCF_Reset          0x04

#define ASIC3_EXTCF_SELECT        0x00

#define ASIC3_EXTCF_RESET         0x04



#define ASIC3_EXTCF_SMOD0	         (1 << 0)  /* slot number of mode 0 */

#define ASIC3_EXTCF_SMOD1	         (1 << 1)  /* slot number of mode 1 */