diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/pinctrl/rockchip/pinctrl_rk3288.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/pinctrl/rockchip/pinctrl_rk3288.c b/drivers/pinctrl/rockchip/pinctrl_rk3288.c index 47cefc5..a21b640 100644 --- a/drivers/pinctrl/rockchip/pinctrl_rk3288.c +++ b/drivers/pinctrl/rockchip/pinctrl_rk3288.c @@ -729,7 +729,7 @@ static int rk3288_pinctrl_set_pins(struct udevice *dev, int banknum, int index, value |= (mask << (shift + 16)) | (muxval << shift); writel(value, addr); - /* Handle pullup/pulldown */ + /* Handle pullup/pulldown/drive-strength */ if (flags) { uint val = 0; @@ -737,10 +737,15 @@ static int rk3288_pinctrl_set_pins(struct udevice *dev, int banknum, int index, val = 1; else if (flags & (1 << PIN_CONFIG_BIAS_PULL_DOWN)) val = 2; + else if (flags & (1 << PIN_CONFIG_DRIVE_STRENGTH)) + val = 3; + shift = (index & 7) * 2; ind = index >> 3; if (banknum == 0) addr = &priv->pmu->gpio0pull[ind]; + else if (flags & (1 << PIN_CONFIG_DRIVE_STRENGTH)) + addr = &priv->grf->gpio1_e[banknum - 1][ind]; else addr = &priv->grf->gpio1_p[banknum - 1][ind]; debug("%s: addr=%p, val=%x, shift=%x\n", __func__, addr, val, @@ -779,6 +784,9 @@ static int rk3288_pinctrl_set_state(struct udevice *dev, struct udevice *config) if (flags < 0) return flags; + if (fdtdec_get_int(blob, pcfg_node, "drive-strength", 0) == 12) + flags |= 1 << PIN_CONFIG_DRIVE_STRENGTH; + ret = rk3288_pinctrl_set_pins(dev, ptr[0], ptr[1], ptr[2], flags); if (ret) |