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authorRoger Tseng <rogerable@realtek.com>2013-02-04 15:45:58 +0800
committerSamuel Ortiz <sameo@linux.intel.com>2013-02-14 00:22:59 +0100
commit88a7ee37f3c5c73b000f7ba2000b27c5002a5286 (patch)
treecf73579f1eb6597ca8df1edc93597a7b0023869e /drivers/mfd
parent8ea402f5646e6e36c8cd0a62053ba8939204dceb (diff)
mfd: rtsx: Implement driving adjustment to device-dependent callbacks
Implement different ways of selecting driving capability(a necessary adjustment along with voltage change). It was origionally in device-independent mmc/host/rtsx_pci_sdmmc.c. Moving it here to support devices which may have a different way of adjustment. Signed-off-by: Roger Tseng <rogerable@realtek.com> Reviewed-by: Wei WANG <wei_wang@realsil.com.cn> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Diffstat (limited to 'drivers/mfd')
-rw-r--r--drivers/mfd/rtl8411.c16
-rw-r--r--drivers/mfd/rts5209.c8
-rw-r--r--drivers/mfd/rts5229.c8
3 files changed, 29 insertions, 3 deletions
diff --git a/drivers/mfd/rtl8411.c b/drivers/mfd/rtl8411.c
index 3d3b4addf81a..2a2d31687b72 100644
--- a/drivers/mfd/rtl8411.c
+++ b/drivers/mfd/rtl8411.c
@@ -115,14 +115,24 @@ static int rtl8411_card_power_off(struct rtsx_pcr *pcr, int card)
static int rtl8411_switch_output_voltage(struct rtsx_pcr *pcr, u8 voltage)
{
u8 mask, val;
+ int err;
mask = (BPP_REG_TUNED18 << BPP_TUNED18_SHIFT_8411) | BPP_PAD_MASK;
- if (voltage == OUTPUT_3V3)
+ if (voltage == OUTPUT_3V3) {
+ err = rtsx_pci_write_register(pcr,
+ SD30_DRIVE_SEL, 0x07, DRIVER_TYPE_D);
+ if (err < 0)
+ return err;
val = (BPP_ASIC_3V3 << BPP_TUNED18_SHIFT_8411) | BPP_PAD_3V3;
- else if (voltage == OUTPUT_1V8)
+ } else if (voltage == OUTPUT_1V8) {
+ err = rtsx_pci_write_register(pcr,
+ SD30_DRIVE_SEL, 0x07, DRIVER_TYPE_B);
+ if (err < 0)
+ return err;
val = (BPP_ASIC_1V8 << BPP_TUNED18_SHIFT_8411) | BPP_PAD_1V8;
- else
+ } else {
return -EINVAL;
+ }
return rtsx_pci_write_register(pcr, LDO_CTL, mask, val);
}
diff --git a/drivers/mfd/rts5209.c b/drivers/mfd/rts5209.c
index 98fe0f39463e..ec78d9fb0879 100644
--- a/drivers/mfd/rts5209.c
+++ b/drivers/mfd/rts5209.c
@@ -149,10 +149,18 @@ static int rts5209_switch_output_voltage(struct rtsx_pcr *pcr, u8 voltage)
int err;
if (voltage == OUTPUT_3V3) {
+ err = rtsx_pci_write_register(pcr,
+ SD30_DRIVE_SEL, 0x07, DRIVER_TYPE_D);
+ if (err < 0)
+ return err;
err = rtsx_pci_write_phy_register(pcr, 0x08, 0x4FC0 | 0x24);
if (err < 0)
return err;
} else if (voltage == OUTPUT_1V8) {
+ err = rtsx_pci_write_register(pcr,
+ SD30_DRIVE_SEL, 0x07, DRIVER_TYPE_B);
+ if (err < 0)
+ return err;
err = rtsx_pci_write_phy_register(pcr, 0x08, 0x4C40 | 0x24);
if (err < 0)
return err;
diff --git a/drivers/mfd/rts5229.c b/drivers/mfd/rts5229.c
index 29d889cbb9c5..58af4dbe3586 100644
--- a/drivers/mfd/rts5229.c
+++ b/drivers/mfd/rts5229.c
@@ -119,10 +119,18 @@ static int rts5229_switch_output_voltage(struct rtsx_pcr *pcr, u8 voltage)
int err;
if (voltage == OUTPUT_3V3) {
+ err = rtsx_pci_write_register(pcr,
+ SD30_DRIVE_SEL, 0x07, DRIVER_TYPE_D);
+ if (err < 0)
+ return err;
err = rtsx_pci_write_phy_register(pcr, 0x08, 0x4FC0 | 0x24);
if (err < 0)
return err;
} else if (voltage == OUTPUT_1V8) {
+ err = rtsx_pci_write_register(pcr,
+ SD30_DRIVE_SEL, 0x07, DRIVER_TYPE_B);
+ if (err < 0)
+ return err;
err = rtsx_pci_write_phy_register(pcr, 0x08, 0x4C40 | 0x24);
if (err < 0)
return err;