rockchip/rk3399: Adjust gpio_t format to match ARM TF

Our structure packing for Rockchip's gpio_t was chosen arbitrarily. ARM
Trusted Firmware has since become a thing and chosen a slightly
different way to represent GPIOs in a 32-bit word. Let's align our
format to them so we don't need to remember to convert the values every
time we pass them through.

CQ-DEPEND=CL:572228

Change-Id: I9ce33da28ee8a34d2d944bee010d8bfc06fe879b
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/20586
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/mainboard/google/gru/mainboard.c

@@ -99,7 +99,7 @@ static void register_gpio_suspend(void)
 			.polarity = BL31_GPIO_LEVEL_LOW,
 		},
 	};
-	param_p15_en.gpio.index = GET_GPIO_NUM(GPIO_P15V_EN);
+	param_p15_en.gpio.index = GPIO_P15V_EN.raw;
 	register_bl31_param(&param_p15_en.h);
 
 	static struct bl31_gpio_param param_p18_audio_en = {
@@ -110,7 +110,7 @@ static void register_gpio_suspend(void)
 			.polarity = BL31_GPIO_LEVEL_LOW,
 		},
 	};
-	param_p18_audio_en.gpio.index = GET_GPIO_NUM(GPIO_P18V_AUDIO_PWREN);
+	param_p18_audio_en.gpio.index = GPIO_P18V_AUDIO_PWREN.raw;
 	register_bl31_param(&param_p18_audio_en.h);
 
 	static struct bl31_gpio_param param_p30_en = {
@@ -121,7 +121,7 @@ static void register_gpio_suspend(void)
 			.polarity = BL31_GPIO_LEVEL_LOW,
 		},
 	};
-	param_p30_en.gpio.index = GET_GPIO_NUM(GPIO_P30V_EN);
+	param_p30_en.gpio.index = GPIO_P30V_EN.raw;
 	register_bl31_param(&param_p30_en.h);
 }
 
@@ -137,7 +137,7 @@ static void register_reset_to_bl31(void)
 	};
 
 	/* gru/kevin reset pin: gpio0b3 */
-	param_reset.gpio.index = GET_GPIO_NUM(GPIO_RESET),
+	param_reset.gpio.index = GPIO_RESET.raw,
 
 	register_bl31_param(&param_reset.h);
 }
@@ -158,7 +158,7 @@ static void register_poweroff_to_bl31(void)
 	 * reuse with tsadc int pin, so iomux need set back to
 	 * gpio in BL31 and depthcharge before you setting this gpio
 	 */
-	param_poweroff.gpio.index = GET_GPIO_NUM(GPIO_POWEROFF),
+	param_poweroff.gpio.index = GPIO_POWEROFF.raw,
 
 	register_bl31_param(&param_poweroff.h);
 }

src/soc/rockchip/common/include/soc/gpio.h

@@ -19,8 +19,6 @@
 #include <types.h>
 
 #define GPIO(p, b, i) ((gpio_t){.port = p, .bank = GPIO_##b, .idx = i})
-#define GET_GPIO_NUM(gpio)	(gpio.port * 32 + gpio.bank * 8 + gpio.idx)
-
 
 struct rockchip_gpio_regs {
 	u32 swporta_dr;
@@ -43,16 +41,16 @@ check_member(rockchip_gpio_regs, ls_sync, 0x60);
 typedef union {
 	u32 raw;
 	struct {
-		u16 port;
 		union {
 			struct {
-				u16 num : 5;
-				u16 reserved1 : 11;
+				u32 num : 5;
+				u32 reserved1 : 27;
 			};
 			struct {
-				u16 idx : 3;
-				u16 bank : 2;
-				u16 reserved2 : 11;
+				u32 idx : 3;
+				u32 bank : 2;
+				u32 port : 4;
+				u32 reserved2 : 23;
 			};
 		};
 	};