This driver does not need write access to the rtl1888eu chip's efuses.
Remove the code to set the voltages for writing the efuses.
Signed-off-by: Martin Kaiser <martin@xxxxxxxxx>
---
drivers/staging/rtl8188eu/core/rtw_efuse.c | 32 ++--------------------
1 file changed, 3 insertions(+), 29 deletions(-)
diff --git a/drivers/staging/rtl8188eu/core/rtw_efuse.c b/drivers/staging/rtl8188eu/core/rtw_efuse.c
index 80673a73c119..0b821df58b77 100644
--- a/drivers/staging/rtl8188eu/core/rtw_efuse.c
+++ b/drivers/staging/rtl8188eu/core/rtw_efuse.c
@@ -16,18 +16,8 @@
#define REG_EFUSE_CTRL 0x0030
#define EFUSE_CTRL REG_EFUSE_CTRL /* E-Fuse Control. */
-enum{
- VOLTAGE_V25 = 0x03,
- LDOE25_SHIFT = 28,
- };
-
-/*
- * When we want to enable write operation, we should change to pwr on state.
- * When we stop write, we should switch to 500k mode and disable LDO 2.5V.
- */
-static void efuse_power_switch(struct adapter *pAdapter, u8 write, u8 pwrstate)
+static void efuse_power_switch(struct adapter *pAdapter, u8 pwrstate)
{
- u8 tempval;
u16 tmpv16;
if (pwrstate) {
@@ -52,22 +42,8 @@ static void efuse_power_switch(struct adapter *pAdapter, u8 write, u8 pwrstate)
tmpv16 |= (LOADER_CLK_EN | ANA8M);
usb_write16(pAdapter, REG_SYS_CLKR, tmpv16);
}
-
- if (write) {
- /* Enable LDO 2.5V before read/write action */
- tempval = usb_read8(pAdapter, EFUSE_TEST + 3);
- tempval &= 0x0F;
- tempval |= (VOLTAGE_V25 << 4);
- usb_write8(pAdapter, EFUSE_TEST + 3, (tempval | 0x80));
- }
} else {
usb_write8(pAdapter, REG_EFUSE_ACCESS, EFUSE_ACCESS_OFF);
-
- if (write) {
- /* Disable LDO 2.5V after read/write action */
- tempval = usb_read8(pAdapter, EFUSE_TEST + 3);
- usb_write8(pAdapter, EFUSE_TEST + 3, (tempval & 0x7F));
- }
}
}
@@ -857,11 +833,9 @@ void efuse_WordEnableDataRead(u8 word_en, u8 *sourdata, u8 *targetdata)
/* Read All Efuse content */
static void Efuse_ReadAllMap(struct adapter *pAdapter, u8 *Efuse)
{
- efuse_power_switch(pAdapter, false, true);
-
+ efuse_power_switch(pAdapter, true);
efuse_ReadEFuse(pAdapter, 0, EFUSE_MAP_LEN_88E, Efuse);
-
- efuse_power_switch(pAdapter, false, false);
+ efuse_power_switch(pAdapter, false);
}
/* Transfer current EFUSE content to shadow init and modify map. */
--
2.20.1
