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path: root/drivers/mfd/rts5229.c
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Diffstat (limited to 'drivers/mfd/rts5229.c')
-rw-r--r--drivers/mfd/rts5229.c29
1 files changed, 29 insertions, 0 deletions
diff --git a/drivers/mfd/rts5229.c b/drivers/mfd/rts5229.c
index b9dbab266fd..58af4dbe358 100644
--- a/drivers/mfd/rts5229.c
+++ b/drivers/mfd/rts5229.c
@@ -114,6 +114,33 @@ static int rts5229_card_power_off(struct rtsx_pcr *pcr, int card)
return rtsx_pci_send_cmd(pcr, 100);
}
+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;
+ } else {
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
static const struct pcr_ops rts5229_pcr_ops = {
.extra_init_hw = rts5229_extra_init_hw,
.optimize_phy = rts5229_optimize_phy,
@@ -123,7 +150,9 @@ static const struct pcr_ops rts5229_pcr_ops = {
.disable_auto_blink = rts5229_disable_auto_blink,
.card_power_on = rts5229_card_power_on,
.card_power_off = rts5229_card_power_off,
+ .switch_output_voltage = rts5229_switch_output_voltage,
.cd_deglitch = NULL,
+ .conv_clk_and_div_n = NULL,
};
/* SD Pull Control Enable: