@@ -141,8 +141,14 @@ static int rk3288_set_drive(struct rockchip_pin_bank *bank,
return ret;
}
- /* enable the write to the equivalent lower bits */
- data = ((1 << ROCKCHIP_DRV_BITS_PER_PIN) - 1) << (bit + 16);
+ if (bank->bank_num == 0) {
+ regmap_read(regmap, reg, &data);
+ data &= ~(((1 << ROCKCHIP_DRV_BITS_PER_PIN) - 1) << bit);
+ } else {
+ /* enable the write to the equivalent lower bits */
+ data = ((1 << ROCKCHIP_DRV_BITS_PER_PIN) - 1) << (bit + 16);
+ }
+
data |= (ret << bit);
ret = regmap_write(regmap, reg, data);
return ret;
RK3288 pmu_gpio0 drive strength setting have no higher 16 writing corresponding bits, need to read before write the register. Signed-off-by: David Wu <david.wu@rock-chips.com> --- drivers/pinctrl/rockchip/pinctrl-rk3288.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-)