pinctrl: add more pinconf/pinctrl definitions

These pinconf/pinctrl definitions will be used by the next patches.

The definitions was taken from public headers of linux-7.0. It's used
by several linux pinctrl drivers, so it might be helpful for U-Boot as
well.

Pinconf definitions are placed near the corresponding U-Boot definitions
in file include/dm/pinctrl.h. Pin/group/function definitions stored within
the same path as in linux (include/linux/pinctrl/pinctrl.h).

Signed-off-by: Mikhail Kshevetskiy <[email protected]>
Reviewed-by: David Lechner <[email protected]>

1 files changed, 28 insertions, 0 deletions

diff --git a/include/dm/pinctrl.h b/include/dm/pinctrl.h
index e41baea6200..36db47802c7 100644
--- a/include/dm/pinctrl.h
+++ b/include/dm/pinctrl.h
@@ -481,6 +481,34 @@ enum pin_config_param {
 	PIN_CONFIG_MAX = 255, /* 0xFF */
 };
 
+/*
+ * Helpful configuration macro to be used in tables etc.
+ */
+#define PIN_CONF_PACKED(p, a) ((a << 8) | ((unsigned long) p & 0xffUL))
+
+/*
+ * The following inlines stuffs a configuration parameter and data value
+ * into and out of an unsigned long argument, as used by the generic pin config
+ * system. We put the parameter in the lower 8 bits and the argument in the
+ * upper 24 bits.
+ */
+
+static inline enum pin_config_param pinconf_to_config_param(unsigned long config)
+{
+	return (enum pin_config_param) (config & 0xffUL);
+}
+
+static inline u32 pinconf_to_config_argument(unsigned long config)
+{
+	return (u32) ((config >> 8) & 0xffffffUL);
+}
+
+static inline unsigned long pinconf_to_config_packed(enum pin_config_param param,
+			     u32 argument)
+{
+	return PIN_CONF_PACKED(param, argument);
+}
+
 #if CONFIG_IS_ENABLED(PINCTRL_GENERIC)
 /**
  * pinctrl_generic_set_state() - Generic set_state operation