Merge patch series "pinctrl: add support of Airoha SoCs"

Mikhail Kshevetskiy <[email protected]> says:

This patch series add pin controller and gpio driver support for EN7523/
AN7581/AN7583 SoCs. The driver based on official linux airoha pinctrl
and gpio driver with Matheus Sampaio Queiroga changes.

The original Matheus Sampaio Queiroga driver can be taken from the repo:
  https://sirherobrine23.com.br/airoha_en7523/kernel/src/branch/airoha_en7523_pinctrl

Additionally in the EN7523 case the patches removes existing gpio dts
nodes and replaces them with pinctrl node. It should not be very
dangerous, because:
 * No official EN7523 gpio support present in U-Boot
 * Legacy Linux EN7523 GPIO driver is mostly abandoned
 * The same driver is planned for upstream linux/openwrt

This patchset includes bitfield.h patches created for Linux kernel by
Geert Uytterhoeven. It suits U-Boot fine. I preserve original author and
original commit messages. Please note me, if there is a better way.

The patches were tested on EN7523/AN7581/AN7583 boards.

Link: https://lore.kernel.org/r/[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