generic: rtl8366: add rtl8366_smi_write_reg_noack helper

[openwrt.git] / target / linux / generic / files / drivers / net / phy / rtl8366_smi.c

diff --git a/target/linux/generic/files/drivers/net/phy/rtl8366_smi.c b/target/linux/generic/files/drivers/net/phy/rtl8366_smi.c
index 971c95f..e48ca99 100644 (file)
--- a/target/linux/generic/files/drivers/net/phy/rtl8366_smi.c
+++ b/target/linux/generic/files/drivers/net/phy/rtl8366_smi.c
@@ -157,6 +157,12 @@ static int rtl8366_smi_write_byte(struct rtl8366_smi *smi, u8 data)
        return rtl8366_smi_wait_for_ack(smi);
 }
 
+static int rtl8366_smi_write_byte_noack(struct rtl8366_smi *smi, u8 data)
+{
+       rtl8366_smi_write_bits(smi, data, 8);
+       return 0;
+}
+
 static int rtl8366_smi_read_byte0(struct rtl8366_smi *smi, u8 *data)
 {
        u32 t;
@@ -228,7 +234,8 @@ int rtl8366_smi_read_reg(struct rtl8366_smi *smi, u32 addr, u32 *data)
 }
 EXPORT_SYMBOL_GPL(rtl8366_smi_read_reg);
 
-int rtl8366_smi_write_reg(struct rtl8366_smi *smi, u32 addr, u32 data)
+static int __rtl8366_smi_write_reg(struct rtl8366_smi *smi,
+                                  u32 addr, u32 data, bool ack)
 {
        unsigned long flags;
        int ret;
@@ -258,7 +265,10 @@ int rtl8366_smi_write_reg(struct rtl8366_smi *smi, u32 addr, u32 data)
                goto out;
 
        /* write DATA[15:8] */
-       ret = rtl8366_smi_write_byte(smi, data >> 8);
+       if (ack)
+               ret = rtl8366_smi_write_byte(smi, data >> 8);
+       else
+               ret = rtl8366_smi_write_byte_noack(smi, data >> 8);
        if (ret)
                goto out;
 
@@ -270,8 +280,19 @@ int rtl8366_smi_write_reg(struct rtl8366_smi *smi, u32 addr, u32 data)
 
        return ret;
 }
+
+int rtl8366_smi_write_reg(struct rtl8366_smi *smi, u32 addr, u32 data)
+{
+       return __rtl8366_smi_write_reg(smi, addr, data, true);
+}
 EXPORT_SYMBOL_GPL(rtl8366_smi_write_reg);
 
+int rtl8366_smi_write_reg_noack(struct rtl8366_smi *smi, u32 addr, u32 data)
+{
+       return __rtl8366_smi_write_reg(smi, addr, data, false);
+}
+EXPORT_SYMBOL_GPL(rtl8366_smi_write_reg_noack);
+
 int rtl8366_smi_rmwr(struct rtl8366_smi *smi, u32 addr, u32 mask, u32 data)
 {
        u32 t;