pinctrl: airoha: split driver on shared code and SoC specific drivers

Split combined an7581/an7583 source file on a
 * shared pinctrl code (pinctrl-airoha.c)
 * an7581 specific pinctrl driver (pinctrl-an7581.c)
 * an7583 specific pinctrl driver (pinctrl-an7583.c)

Ininialization code was adapted a bit to work properly for shared
and SoC specific cases.

Signed-off-by: Mikhail Kshevetskiy <mikhail.kshevetskiy@iopsys.eu>
Signed-off-by: Linus Walleij <linusw@kernel.org>

drivers/pinctrl/airoha/Kconfig

@@ -3,9 +3,9 @@ menu "Airoha pinctrl drivers"
 	depends on ARCH_AIROHA || COMPILE_TEST
 
 config PINCTRL_AIROHA
-	tristate "Airoha EN7581 pin control"
+	tristate "Airoha pin control"
 	depends on OF
-	depends on ARM64 || COMPILE_TEST
+	depends on ARCH_AIROHA || COMPILE_TEST
 	select PINMUX
 	select GENERIC_PINCONF
 	select GENERIC_PINCTRL_GROUPS
@@ -13,8 +13,26 @@ config PINCTRL_AIROHA
 	select GPIOLIB
 	select GPIOLIB_IRQCHIP
 	select REGMAP_MMIO
+	imply PINCTRL_AIROHA_AN7581
+	imply PINCTRL_AIROHA_AN7583
+	help
+	  Shared pin controller and gpio driver code for different
+	  Airoha SoCs.
+
+config PINCTRL_AIROHA_AN7581
+	tristate "AN7581 pinctrl"
+	depends on ARM64 || COMPILE_TEST
+	depends on PINCTRL_AIROHA
 	help
 	  Say yes here to support pin controller and gpio driver
-	  on Airoha EN7581 SoC.
+	  on Airoha AN7581, AN7566, AN7551 and other compatible SoCs.
+
+config PINCTRL_AIROHA_AN7583
+	tristate "AN7583 pinctrl"
+	depends on ARM64 || COMPILE_TEST
+	depends on PINCTRL_AIROHA
+	help
+	  Say yes here to support pin controller and gpio driver
+	  on Airoha AN7583, AN7553, AN7567 and other compatible SoCs.
 
 endmenu

drivers/pinctrl/airoha/Makefile

@@ -1,3 +1,8 @@
 # SPDX-License-Identifier: GPL-2.0
 
+# shared code
 obj-$(CONFIG_PINCTRL_AIROHA)		+= pinctrl-airoha.o
+
+# SoC drivers
+obj-$(CONFIG_PINCTRL_AIROHA_AN7581)	+= pinctrl-an7581.o
+obj-$(CONFIG_PINCTRL_AIROHA_AN7583)	+= pinctrl-an7583.o

drivers/pinctrl/airoha/airoha-common.h

@@ -130,6 +130,8 @@ struct airoha_pinctrl {
 };
 
 struct airoha_pinctrl_match_data {
+	const char *pinctrl_name;
+	struct module *pinctrl_owner;
 	const struct pinctrl_pin_desc *pins;
 	const unsigned int num_pins;
 	const struct pingroup *grps;
@@ -139,4 +141,6 @@ struct airoha_pinctrl_match_data {
 	const struct airoha_pinctrl_confs_info confs_info[AIROHA_PINCTRL_CONFS_MAX];
 };
 
+int airoha_pinctrl_probe(struct platform_device *pdev);
+
 #endif