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-rw-r--r--drivers/mfd/tc3589x.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/mfd/tc3589x.c b/drivers/mfd/tc3589x.c
index 708349a5c0e3..f000d2ed23e0 100644
--- a/drivers/mfd/tc3589x.c
+++ b/drivers/mfd/tc3589x.c
@@ -231,12 +231,15 @@ static int tc3589x_chip_init(struct tc3589x *tc3589x)
dev_info(tc3589x->dev, "manufacturer: %#x, version: %#x\n", manf, ver);
- /* Put everything except the IRQ module into reset */
+ /*
+ * Put everything except the IRQ module into reset;
+ * also spare the GPIO module for any pin initialization
+ * done during pre-kernel boot
+ */
ret = tc3589x_reg_write(tc3589x, TC3589x_RSTCTRL,
TC3589x_RSTCTRL_TIMRST
| TC3589x_RSTCTRL_ROTRST
- | TC3589x_RSTCTRL_KBDRST
- | TC3589x_RSTCTRL_GPIRST);
+ | TC3589x_RSTCTRL_KBDRST);
if (ret < 0)
return ret;