[PATCH v2 2/3] mfd: rtsx: add card reader rtl8402

[micky_ching]

From: Micky Ching <micky_ch...@realsil.com.cn>

Add card reader rtl8042, rtl8402 is much like rtl8411, so just add it to
rtl8411.c

Signed-off-by: Lee Jones <lee.jo...@linaro.org>
Signed-off-by: Micky Ching <micky_ch...@realsil.com.cn>
---
 drivers/mfd/rtl8411.c  |   33 +++++++++++++++++++++++++++++++++
 drivers/mfd/rtsx_pcr.c |    5 +++++
 drivers/mfd/rtsx_pcr.h |    1 +
 3 files changed, 39 insertions(+)

diff --git a/drivers/mfd/rtl8411.c b/drivers/mfd/rtl8411.c
index c9eab9d..4b377e3 100644
--- a/drivers/mfd/rtl8411.c
+++ b/drivers/mfd/rtl8411.c
@@ -216,6 +216,31 @@ static int rtl8411_switch_output_voltage(struct rtsx_pcr 
*pcr, u8 voltage)
        return rtsx_pci_write_register(pcr, LDO_CTL, mask, val);
 }
 
+static int rtl8402_switch_output_voltage(struct rtsx_pcr *pcr, u8 voltage)
+{
+       u8 mask, val;
+       int err;
+
+       mask = (BPP_REG_TUNED18 << BPP_TUNED18_SHIFT_8402) | 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_8402) | 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_2V0 << BPP_TUNED18_SHIFT_8402) | BPP_PAD_1V8;
+       } else {
+               return -EINVAL;
+       }
+
+       return rtsx_pci_write_register(pcr, LDO_CTL, mask, val);
+}
+
 static unsigned int rtl8411_cd_deglitch(struct rtsx_pcr *pcr)
 {
        unsigned int card_exist;
@@ -457,3 +482,11 @@ void rtl8411b_init_params(struct rtsx_pcr *pcr)
        else
                set_pull_ctrl_tables(rtl8411b_qfn64);
 }
+
+void rtl8402_init_params(struct rtsx_pcr *pcr)
+{
+       rtl8411_init_params(pcr);
+
+       rtl8411_pcr_ops.switch_output_voltage =
+               rtl8402_switch_output_voltage;
+}
diff --git a/drivers/mfd/rtsx_pcr.c b/drivers/mfd/rtsx_pcr.c
index 11e20af..2af55bb 100644
--- a/drivers/mfd/rtsx_pcr.c
+++ b/drivers/mfd/rtsx_pcr.c
@@ -57,6 +57,7 @@ static DEFINE_PCI_DEVICE_TABLE(rtsx_pci_ids) = {
        { PCI_DEVICE(0x10EC, 0x5227), PCI_CLASS_OTHERS << 16, 0xFF0000 },
        { PCI_DEVICE(0x10EC, 0x5249), PCI_CLASS_OTHERS << 16, 0xFF0000 },
        { PCI_DEVICE(0x10EC, 0x5287), PCI_CLASS_OTHERS << 16, 0xFF0000 },
+       { PCI_DEVICE(0x10EC, 0x5286), PCI_CLASS_OTHERS << 16, 0xFF0000 },
        { 0, }
 };
 
@@ -1061,6 +1062,10 @@ static int rtsx_pci_init_chip(struct rtsx_pcr *pcr)
        case 0x5287:
                rtl8411b_init_params(pcr);
                break;
+
+       case 0x5286:
+               rtl8402_init_params(pcr);
+               break;
        }
 
        dev_dbg(&(pcr->pci->dev), "PID: 0x%04x, IC version: 0x%02x\n",
diff --git a/drivers/mfd/rtsx_pcr.h b/drivers/mfd/rtsx_pcr.h
index 26b52ec..c097dbd 100644
--- a/drivers/mfd/rtsx_pcr.h
+++ b/drivers/mfd/rtsx_pcr.h
@@ -30,6 +30,7 @@
 void rts5209_init_params(struct rtsx_pcr *pcr);
 void rts5229_init_params(struct rtsx_pcr *pcr);
 void rtl8411_init_params(struct rtsx_pcr *pcr);
+void rtl8402_init_params(struct rtsx_pcr *pcr);
 void rts5227_init_params(struct rtsx_pcr *pcr);
 void rts5249_init_params(struct rtsx_pcr *pcr);
 void rtl8411b_init_params(struct rtsx_pcr *pcr);
-- 
1.7.9.5

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