Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit a3b63979 authored by Micky Ching's avatar Micky Ching Committed by Lee Jones
Browse files

mfd: rtsx: Add func to split u32 into register 



Add helper function to write u32 to registers, if we want to put u32
value to 4 continuous register, this can help us reduce tedious work.

Signed-off-by: default avatarMicky Ching <micky_ching@realsil.com.cn>
Signed-off-by: default avatarLee Jones <lee.jones@linaro.org>
parent 292aabb1

include/linux/mfd/rtsx_pci.h

+9 −0
Original line number Diff line number Diff line
@@ -558,6 +558,7 @@ 
#define SD_SAMPLE_POINT_CTL		0xFDA7

#define SD_PUSH_POINT_CTL		0xFDA8

#define SD_CMD0				0xFDA9

#define   SD_CMD_START			0x40

#define SD_CMD1				0xFDAA

#define SD_CMD2				0xFDAB

#define SD_CMD3				0xFDAC
@@ -995,4 +996,12 @@ static inline int rtsx_pci_update_cfg_byte(struct rtsx_pcr *pcr, int addr, 
	return pci_write_config_byte(pcr->pci, addr, (val & mask) | append);

}



static inline void rtsx_pci_write_be32(struct rtsx_pcr *pcr, u16 reg, u32 val)

{

	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, reg,     0xFF, val >> 24);

	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, reg + 1, 0xFF, val >> 16);

	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, reg + 2, 0xFF, val >> 8);

	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, reg + 3, 0xFF, val);

}



#endif