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Subject[PATCH 4/5] mfd:rtsx: Clear hardware PFM mode in rtl8411b
Date
From: Wei WANG <wei_wang@realsil.com.cn>

Clear hw_pfm_en to disable hardware PFM mode, to fix a bug that in some
situation registers in 0xFDxx domain can't be accessed.

Signed-off-by: Wei WANG <wei_wang@realsil.com.cn>
---
drivers/mfd/rtl8411.c | 2 ++
include/linux/mfd/rtsx_pci.h | 1 +
2 files changed, 3 insertions(+)

diff --git a/drivers/mfd/rtl8411.c b/drivers/mfd/rtl8411.c
index cd4cee8..dd3981a 100644
--- a/drivers/mfd/rtl8411.c
+++ b/drivers/mfd/rtl8411.c
@@ -110,6 +110,8 @@ static int rtl8411b_extra_init_hw(struct rtsx_pcr *pcr)
0xFF, pcr->sd30_drive_sel_3v3);
rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CD_PAD_CTL,
CD_DISABLE_MASK | CD_AUTO_DISABLE, CD_ENABLE);
+ rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, FUNC_FORCE_CTL,
+ 0x06, 0x00);

return rtsx_pci_send_cmd(pcr, 100);
}
diff --git a/include/linux/mfd/rtsx_pci.h b/include/linux/mfd/rtsx_pci.h
index e070c30..c19044e 100644
--- a/include/linux/mfd/rtsx_pci.h
+++ b/include/linux/mfd/rtsx_pci.h
@@ -672,6 +672,7 @@
#define PME_FORCE_CTL 0xFE56
#define ASPM_FORCE_CTL 0xFE57
#define PM_CLK_FORCE_CTL 0xFE58
+#define FUNC_FORCE_CTL 0xFE59
#define PERST_GLITCH_WIDTH 0xFE5C
#define CHANGE_LINK_STATE 0xFE5B
#define RESET_LOAD_REG 0xFE5E
--
1.7.9.5


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