diff options
| author | Masahiro Yamada <yamada.masahiro@socionext.com> | 2016-06-29 19:38:59 +0900 |
|---|---|---|
| committer | Masahiro Yamada <yamada.masahiro@socionext.com> | 2016-07-02 05:44:29 +0900 |
| commit | 5e25b9d5d90205ce9531677e362e9dd9359963b3 (patch) | |
| tree | d085fd64c64d2d9f7d669c539e247876beafb7bb /drivers/pinctrl/uniphier/pinctrl-uniphier-core.c | |
| parent | 3379987e26956d9eab668a0811a0f0a9a056754f (diff) | |
pinctrl: uniphier: support pin configuration for dedicated pins
PH1-LD4 and PH1-sLD8 SoCs have pins that support pin configuration
(pin biasing, drive strength control), but not pin-muxing.
Allow to fill the mux value table with -1 for those pins; pins with
mux value -1 will be skipped in the pin-mux set function. The mux
value type should be changed from "unsigned" to "int" in order to
accommodate -1 as a special case.
[ Linux commit: 363c90e743b50a432a91a211dd8b078d9df446e9 ]
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Diffstat (limited to 'drivers/pinctrl/uniphier/pinctrl-uniphier-core.c')
| -rw-r--r-- | drivers/pinctrl/uniphier/pinctrl-uniphier-core.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/pinctrl/uniphier/pinctrl-uniphier-core.c b/drivers/pinctrl/uniphier/pinctrl-uniphier-core.c index fc8bbd292b..0ad15abb4a 100644 --- a/drivers/pinctrl/uniphier/pinctrl-uniphier-core.c +++ b/drivers/pinctrl/uniphier/pinctrl-uniphier-core.c @@ -91,7 +91,7 @@ static void uniphier_pinconf_input_enable(struct udevice *dev, unsigned pin) } static void uniphier_pinmux_set_one(struct udevice *dev, unsigned pin, - unsigned muxval) + int muxval) { struct uniphier_pinctrl_priv *priv = dev_get_priv(dev); unsigned mux_bits, reg_stride, reg, reg_end, shift, mask; @@ -101,6 +101,9 @@ static void uniphier_pinmux_set_one(struct udevice *dev, unsigned pin, /* some pins need input-enabling */ uniphier_pinconf_input_enable(dev, pin); + if (muxval < 0) + return; /* dedicated pin; nothing to do for pin-mux */ + if (priv->socdata->caps & UNIPHIER_PINCTRL_CAPS_DBGMUX_SEPARATE) { /* * Mode offset bit |