pinctrl: aspeed-g6: Add PCIe RC PERST pin group

The PCIe RC PERST uses SSPRST# as PERST#  and enable this pin
to output.

Signed-off-by: Jacky Chou <jacky_chou@aspeedtech.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/20250715034320.2553837-8-jacky_chou@aspeedtech.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

Author: aspeedJacky

drivers/pinctrl/aspeed/pinctrl-aspeed-g6.c

@@ -17,6 +17,7 @@
 #include "../pinctrl-utils.h"
 #include "pinctrl-aspeed.h"
 
+#define SCU040		0x040 /* Reset Control Set 1  */
 #define SCU400		0x400 /* Multi-function Pin Control #1  */
 #define SCU404		0x404 /* Multi-function Pin Control #2  */
 #define SCU40C		0x40C /* Multi-function Pin Control #3  */
@@ -52,7 +53,7 @@
 #define SCU6D0		0x6D0 /* Multi-function Pin Control #29 */
 #define SCUC20		0xC20 /* PCIE configuration Setting Control */
 
-#define ASPEED_G6_NR_PINS 256
+#define ASPEED_G6_NR_PINS 258
 
 #define M24 0
 SIG_EXPR_LIST_DECL_SESG(M24, MDC3, MDIO3, SIG_DESC_SET(SCU410, 0));
@@ -1636,6 +1637,12 @@ FUNC_DECL_1(USB11BHID, USBB);
 FUNC_DECL_1(USB2BD, USBB);
 FUNC_DECL_1(USB2BH, USBB);
 
+#define D7 257
+SIG_EXPR_LIST_DECL_SESG(D7, RCRST, PCIERC1, SIG_DESC_SET(SCU040, 19),
+			SIG_DESC_SET(SCU500, 24));
+PIN_DECL_(D7, SIG_EXPR_LIST_PTR(D7, RCRST));
+FUNC_GROUP_DECL(PCIERC1, D7);
+
 /* Pins, groups and functions are sort(1):ed alphabetically for sanity */
 
 static struct pinctrl_pin_desc aspeed_g6_pins[ASPEED_G6_NR_PINS] = {
@@ -1806,6 +1813,7 @@ static struct pinctrl_pin_desc aspeed_g6_pins[ASPEED_G6_NR_PINS] = {
 	ASPEED_PINCTRL_PIN(D4),
 	ASPEED_PINCTRL_PIN(D5),
 	ASPEED_PINCTRL_PIN(D6),
+	ASPEED_PINCTRL_PIN(D7),
 	ASPEED_PINCTRL_PIN(E1),
 	ASPEED_PINCTRL_PIN(E11),
 	ASPEED_PINCTRL_PIN(E12),
@@ -2073,6 +2081,7 @@ static const struct aspeed_pin_group aspeed_g6_groups[] = {
 	ASPEED_PINCTRL_GROUP(SALT9G1),
 	ASPEED_PINCTRL_GROUP(SD1),
 	ASPEED_PINCTRL_GROUP(SD2),
+	ASPEED_PINCTRL_GROUP(PCIERC1),
 	ASPEED_PINCTRL_GROUP(EMMCG1),
 	ASPEED_PINCTRL_GROUP(EMMCG4),
 	ASPEED_PINCTRL_GROUP(EMMCG8),
@@ -2314,6 +2323,7 @@ static const struct aspeed_pin_function aspeed_g6_functions[] = {
 	ASPEED_PINCTRL_FUNC(SPI2),
 	ASPEED_PINCTRL_FUNC(SPI2CS1),
 	ASPEED_PINCTRL_FUNC(SPI2CS2),
+	ASPEED_PINCTRL_FUNC(PCIERC1),
 	ASPEED_PINCTRL_FUNC(TACH0),
 	ASPEED_PINCTRL_FUNC(TACH1),
 	ASPEED_PINCTRL_FUNC(TACH10),