mfd: rtsx: Add support for card reader rtl8402

rtl8402 is much like rtl8411, so just add it to rtl8411.c

Signed-off-by: Micky Ching <micky_ching@realsil.com.cn>
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

1 files changed, 40 insertions, 4 deletions

diff --git a/drivers/mfd/rtl8411.c b/drivers/mfd/rtl8411.c
index 327c8894fd4a..ada38ad54e87 100644
--- a/drivers/mfd/rtl8411.c
+++ b/drivers/mfd/rtl8411.c
@@ -191,24 +191,25 @@ static int rtl8411_card_power_off(struct rtsx_pcr *pcr, int card)
                         BPP_LDO_POWB, BPP_LDO_SUSPEND);
 }
 
-static int rtl8411_switch_output_voltage(struct rtsx_pcr *pcr, u8 voltage)
+static int rtl8411_do_switch_output_voltage(struct rtsx_pcr *pcr, u8 voltage,
+                int bpp_tuned18_shift, int bpp_asic_1v8)
 {
         u8 mask, val;
         int err;
 
-        mask = (BPP_REG_TUNED18 << BPP_TUNED18_SHIFT_8411) | BPP_PAD_MASK;
+        mask = (BPP_REG_TUNED18 << bpp_tuned18_shift) | BPP_PAD_MASK;
         if (voltage == OUTPUT_3V3) {
                 err = rtsx_pci_write_register(pcr,
                                 SD30_DRIVE_SEL, 0x07, pcr->sd30_drive_sel_3v3);
                 if (err < 0)
                         return err;
-                val = (BPP_ASIC_3V3 << BPP_TUNED18_SHIFT_8411) | BPP_PAD_3V3;
+                val = (BPP_ASIC_3V3 << bpp_tuned18_shift) | BPP_PAD_3V3;
         } else if (voltage == OUTPUT_1V8) {
                 err = rtsx_pci_write_register(pcr,
                                 SD30_DRIVE_SEL, 0x07, pcr->sd30_drive_sel_1v8);
                 if (err < 0)
                         return err;
-                val = (BPP_ASIC_1V8 << BPP_TUNED18_SHIFT_8411) | BPP_PAD_1V8;
+                val = (bpp_asic_1v8 << bpp_tuned18_shift) | BPP_PAD_1V8;
         } else {
                 return -EINVAL;
         }
@@ -216,6 +217,18 @@ static int rtl8411_switch_output_voltage(struct rtsx_pcr *pcr, u8 voltage)
         return rtsx_pci_write_register(pcr, LDO_CTL, mask, val);
 }
 
+static int rtl8411_switch_output_voltage(struct rtsx_pcr *pcr, u8 voltage)
+{
+        return rtl8411_do_switch_output_voltage(pcr, voltage,
+                        BPP_TUNED18_SHIFT_8411, BPP_ASIC_1V8);
+}
+
+static int rtl8402_switch_output_voltage(struct rtsx_pcr *pcr, u8 voltage)
+{
+        return rtl8411_do_switch_output_voltage(pcr, voltage,
+                        BPP_TUNED18_SHIFT_8402, BPP_ASIC_2V0);
+}
+
 static unsigned int rtl8411_cd_deglitch(struct rtsx_pcr *pcr)
 {
         unsigned int card_exist;
@@ -295,6 +308,22 @@ static const struct pcr_ops rtl8411_pcr_ops = {
         .force_power_down = rtl8411_force_power_down,
 };
 
+static const struct pcr_ops rtl8402_pcr_ops = {
+        .fetch_vendor_settings = rtl8411_fetch_vendor_settings,
+        .extra_init_hw = rtl8411_extra_init_hw,
+        .optimize_phy = NULL,
+        .turn_on_led = rtl8411_turn_on_led,
+        .turn_off_led = rtl8411_turn_off_led,
+        .enable_auto_blink = rtl8411_enable_auto_blink,
+        .disable_auto_blink = rtl8411_disable_auto_blink,
+        .card_power_on = rtl8411_card_power_on,
+        .card_power_off = rtl8411_card_power_off,
+        .switch_output_voltage = rtl8402_switch_output_voltage,
+        .cd_deglitch = rtl8411_cd_deglitch,
+        .conv_clk_and_div_n = rtl8411_conv_clk_and_div_n,
+        .force_power_down = rtl8411_force_power_down,
+};
+
 static const struct pcr_ops rtl8411b_pcr_ops = {
         .fetch_vendor_settings = rtl8411b_fetch_vendor_settings,
         .extra_init_hw = rtl8411b_extra_init_hw,
@@ -471,3 +500,10 @@ void rtl8411b_init_params(struct rtsx_pcr *pcr)
         else
                 set_pull_ctrl_tables(pcr, rtl8411b_qfn64);
 }
+
+void rtl8402_init_params(struct rtsx_pcr *pcr)
+{
+        rtl8411_init_common_params(pcr);
+        pcr->ops = &rtl8402_pcr_ops;
+        set_pull_ctrl_tables(pcr, rtl8411);
+}