Re: [PATCH] mfd: rtsx: add card reader rtl8402

[micky]

Hi Lee

I'm trying to merge the common code into a single function
rtl8411_init_params(), but different chips may use a different
rtlxxx_pcr_ops even they have much the same.  This is because the
ops may be called frequently.

Yet I'm trying to use Regulator Framework, it will make a
somewhat big change , and I will add it in a later time.

So, I wanna to send the merged patch first, is that ok?

On 11/08/2013 05:56 PM, Lee Jones wrote:

On Fri, 01 Nov 2013, micky_ch...@realsil.com.cn wrote:

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: Micky Ching <micky_ch...@realsil.com.cn>
---
  drivers/mfd/rtl8411.c  |   62 ++++++++++++++++++++++++++++++++++++++++++++++++
  drivers/mfd/rtsx_pcr.c |    5 ++++
  drivers/mfd/rtsx_pcr.h |    1 +
  3 files changed, 68 insertions(+)

Sorry Micky, but I'm not accepting this.

This patch adds 62 lines of duplicated code, with only a few
variations. Please find a way to generify the driver. Also I think we
should consider doing the voltage stuff using the Regulator Framework.

diff --git a/drivers/mfd/rtl8411.c b/drivers/mfd/rtl8411.c
index 5280135..9d37dd6 100644
--- a/drivers/mfd/rtl8411.c
+++ b/drivers/mfd/rtl8411.c
@@ -498,3 +498,65 @@ void rtl8411b_init_params(struct rtsx_pcr *pcr)
                        rtl8411b_qfn64_ms_pull_ctl_disable_tbl;
        }
  }
+
+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 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,
+};
+
+void rtl8402_init_params(struct rtsx_pcr *pcr)
+{
+       pcr->extra_caps = EXTRA_CAPS_SD_SDR50 | EXTRA_CAPS_SD_SDR104;
+       pcr->num_slots = 2;
+       pcr->ops = &rtl8402_pcr_ops;
+
+       pcr->flags = 0;
+       pcr->card_drive_sel = RTL8411_CARD_DRIVE_DEFAULT;
+       pcr->sd30_drive_sel_1v8 = DRIVER_TYPE_B;
+       pcr->sd30_drive_sel_3v3 = DRIVER_TYPE_D;
+       pcr->aspm_en = ASPM_L1_EN;
+       pcr->tx_initial_phase = SET_CLOCK_PHASE(23, 7, 14);
+       pcr->rx_initial_phase = SET_CLOCK_PHASE(4, 3, 10);
+
+       pcr->ic_version = rtl8411_get_ic_version(pcr);
+       pcr->sd_pull_ctl_enable_tbl = rtl8411_sd_pull_ctl_enable_tbl;
+       pcr->sd_pull_ctl_disable_tbl = rtl8411_sd_pull_ctl_disable_tbl;
+       pcr->ms_pull_ctl_enable_tbl = rtl8411_ms_pull_ctl_enable_tbl;
+       pcr->ms_pull_ctl_disable_tbl = rtl8411_ms_pull_ctl_disable_tbl;
+}
diff --git a/drivers/mfd/rtsx_pcr.c b/drivers/mfd/rtsx_pcr.c
index 11e20af..93fabc7 100644
--- a/drivers/mfd/rtsx_pcr.c
+++ b/drivers/mfd/rtsx_pcr.c
@@ -56,6 +56,7 @@ static DEFINE_PCI_DEVICE_TABLE(rtsx_pci_ids) = {
        { PCI_DEVICE(0x10EC, 0x5289), PCI_CLASS_OTHERS << 16, 0xFF0000 },
        { PCI_DEVICE(0x10EC, 0x5227), PCI_CLASS_OTHERS << 16, 0xFF0000 },
        { PCI_DEVICE(0x10EC, 0x5249), PCI_CLASS_OTHERS << 16, 0xFF0000 },
+       { PCI_DEVICE(0x10EC, 0x5286), PCI_CLASS_OTHERS << 16, 0xFF0000 },
        { PCI_DEVICE(0x10EC, 0x5287), PCI_CLASS_OTHERS << 16, 0xFF0000 },
        { 0, }
  };
@@ -1046,6 +1047,10 @@ static int rtsx_pci_init_chip(struct rtsx_pcr *pcr)
                rts5229_init_params(pcr);
                break;

+ case 0x5286:

+               rtl8402_init_params(pcr);
+               break;
+
        case 0x5289:
                rtl8411_init_params(pcr);
                break;
diff --git a/drivers/mfd/rtsx_pcr.h b/drivers/mfd/rtsx_pcr.h
index 947e79b..8cac8db 100644
--- a/drivers/mfd/rtsx_pcr.h
+++ b/drivers/mfd/rtsx_pcr.h
@@ -29,6 +29,7 @@

void rts5209_init_params(struct rtsx_pcr *pcr);

  void rts5229_init_params(struct rtsx_pcr *pcr);
+void rtl8402_init_params(struct rtsx_pcr *pcr);
  void rtl8411_init_params(struct rtsx_pcr *pcr);
  void rts5227_init_params(struct rtsx_pcr *pcr);
  void rts5249_init_params(struct rtsx_pcr *pcr);

--
Best Regards
Micky.

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