diff options
| author | Mika Westerberg <mika.westerberg@linux.intel.com> | 2017-06-06 16:18:18 +0300 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2017-06-09 13:02:50 +0200 |
| commit | 1f6b419b24285409a9365461bf7367a220eff1db (patch) | |
| tree | b0c0b97d3d8aa431b63e97576edb083e75c4096d /drivers/pinctrl | |
| parent | 919eb4756ef41fd71b5eaae8a2a067fcde9d44d7 (diff) | |
| download | linux-1f6b419b24285409a9365461bf7367a220eff1db.tar.bz2 | |
pinctrl: intel: Make it possible to specify mode per pin in a group
On some SoCs not all pins in a group use the same mode when a certain
function is muxed out of them. This makes it possible to specify mode per
pin as an array instead in addition to single integer.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/pinctrl')
| -rw-r--r-- | drivers/pinctrl/intel/pinctrl-intel.c | 6 | ||||
| -rw-r--r-- | drivers/pinctrl/intel/pinctrl-intel.h | 28 |
2 files changed, 26 insertions, 8 deletions
diff --git a/drivers/pinctrl/intel/pinctrl-intel.c b/drivers/pinctrl/intel/pinctrl-intel.c index 78c48497c9e6..6dc1096d3d34 100644 --- a/drivers/pinctrl/intel/pinctrl-intel.c +++ b/drivers/pinctrl/intel/pinctrl-intel.c @@ -398,7 +398,11 @@ static int intel_pinmux_set_mux(struct pinctrl_dev *pctldev, unsigned function, value = readl(padcfg0); value &= ~PADCFG0_PMODE_MASK; - value |= grp->mode << PADCFG0_PMODE_SHIFT; + + if (grp->modes) + value |= grp->modes[i] << PADCFG0_PMODE_SHIFT; + else + value |= grp->mode << PADCFG0_PMODE_SHIFT; writel(value, padcfg0); } diff --git a/drivers/pinctrl/intel/pinctrl-intel.h b/drivers/pinctrl/intel/pinctrl-intel.h index b251a9e86970..7fdb07753c2d 100644 --- a/drivers/pinctrl/intel/pinctrl-intel.h +++ b/drivers/pinctrl/intel/pinctrl-intel.h @@ -22,13 +22,16 @@ struct device; * @name: Name of the groups * @pins: All pins in this group * @npins: Number of pins in this groups - * @mode: Native mode in which the group is muxed out @pins + * @mode: Native mode in which the group is muxed out @pins. Used if @modes + * is %NULL. + * @modes: If not %NULL this will hold mode for each pin in @pins */ struct intel_pingroup { const char *name; const unsigned *pins; size_t npins; unsigned short mode; + const unsigned *modes; }; /** @@ -112,12 +115,23 @@ struct intel_community { #define PINCTRL_FEATURE_DEBOUNCE BIT(0) #define PINCTRL_FEATURE_1K_PD BIT(1) -#define PIN_GROUP(n, p, m) \ - { \ - .name = (n), \ - .pins = (p), \ - .npins = ARRAY_SIZE((p)), \ - .mode = (m), \ +/** + * PIN_GROUP - Declare a pin group + * @n: Name of the group + * @p: An array of pins this group consists + * @m: Mode which the pins are put when this group is active. Can be either + * a single integer or an array of integers in which case mode is per + * pin. + */ +#define PIN_GROUP(n, p, m) \ + { \ + .name = (n), \ + .pins = (p), \ + .npins = ARRAY_SIZE((p)), \ + .mode = __builtin_choose_expr( \ + __builtin_constant_p((m)), (m), 0), \ + .modes = __builtin_choose_expr( \ + __builtin_constant_p((m)), NULL, (m)), \ } #define FUNCTION(n, g) \ |