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mfd: rtsx: Fix PM suspend for 5227 & 5249

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Fix rts5227&5249 failed send buffer cmd after suspend,
PM_CTRL3 should reset before send any buffer cmd after suspend.
Otherwise, buffer cmd will failed, this will lead resume fail.

Signed-off-by: Micky Ching <micky_ching@realsil.com.cn>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
This commit is contained in:
Micky Ching 2014-10-10 13:58:44 +08:00 • committed by Lee Jones
commit 5cb5d9616a
6 changed files with 79 additions and 1 deletions
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28
include/linux/mfd/rtsx_pci.h
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@ -707,6 +707,14 @@
#define PM_CTRL1 0xFF44
#define PM_CTRL2 0xFF45
#define PM_CTRL3 0xFF46
#define SDIO_SEND_PME_EN 0x80
#define FORCE_RC_MODE_ON 0x40
#define FORCE_RX50_LINK_ON 0x20
#define D3_DELINK_MODE_EN 0x10
#define USE_PESRTB_CTL_DELINK 0x08
#define DELAY_PIN_WAKE 0x04
#define RESET_PIN_WAKE 0x02
#define PM_WAKE_EN 0x01
#define PM_CTRL4 0xFF47
/* Memory mapping */
@ -752,6 +760,14 @@
#define PHY_DUM_REG 0x1F
#define LCTLR 0x80
#define LCTLR_EXT_SYNC 0x80
#define LCTLR_COMMON_CLOCK_CFG 0x40
#define LCTLR_RETRAIN_LINK 0x20
#define LCTLR_LINK_DISABLE 0x10
#define LCTLR_RCB 0x08
#define LCTLR_RESERVED 0x04
#define LCTLR_ASPM_CTL_MASK 0x03
#define PCR_SETTING_REG1 0x724
#define PCR_SETTING_REG2 0x814
#define PCR_SETTING_REG3 0x747
@ -967,4 +983,16 @@ static inline u8 *rtsx_pci_get_cmd_data(struct rtsx_pcr *pcr)
return (u8 *)(pcr->host_cmds_ptr);
}
static inline int rtsx_pci_update_cfg_byte(struct rtsx_pcr *pcr, int addr,
u8 mask, u8 append)
{
int err;
u8 val;
err = pci_read_config_byte(pcr->pci, addr, &val);
if (err < 0)
return err;
return pci_write_config_byte(pcr->pci, addr, (val & mask) | append);
}
#endif