commit 5045a1cee1c7e94bd31ba1534827d4c26291480c
author Caesar Wang <wxt@rock-chips.com> Sat Sep 10 02:47:53 2016 +0800
committer Caesar Wang <wxt@rock-chips.com> Sat Sep 10 04:06:44 2016 +0800
tree a69f66e3d730f77d4cb7c7390b62e0643a768d7b
parent ef18007be6116b01f359ee65e5137adda3d243c3

rockchip: set gpio2 ~ gpio4 to input and pull none mode

For save power cosumption, if gpio power supply shut down, we need to
set gpio2 ~ gpio4 to input and HiZ status when suspend, and recovery
they status when rusume. we do it base on apio pass from loader.

Change-Id: I59fd2395e5e37e63425472a39f519822c9197e4c

plat/rockchip/common/include/plat_params.h

diff --git a/plat/rockchip/common/include/plat_params.h b/plat/rockchip/common/include/plat_params.h
index 7e1f275..8c64796 100644
--- a/plat/rockchip/common/include/plat_params.h
+++ b/plat/rockchip/common/include/plat_params.h
@@ -79,8 +79,17 @@
 	PARAM_RESET,
 	PARAM_POWEROFF,
 	PARAM_SUSPEND_GPIO,
+	PARAM_SUSPEND_APIO,
 };
 
+struct apio_info {
+	uint8_t apio1 : 1;
+	uint8_t apio2 : 1;
+	uint8_t apio3 : 1;
+	uint8_t apio4 : 1;
+	uint8_t apio5 : 1;
+};
+
 struct gpio_info {
 	uint8_t polarity;
 	uint8_t direction;
@@ -99,4 +108,9 @@
 	struct gpio_info gpio;
 };
 
+struct bl31_apio_param {
+	struct bl31_plat_param h;
+	struct apio_info apio;
+};
+
 #endif /* __PLAT_PARAMS_H__ */

plat/rockchip/common/include/plat_private.h

diff --git a/plat/rockchip/common/include/plat_private.h b/plat/rockchip/common/include/plat_private.h
index 4f87a76..ad01266 100644
--- a/plat/rockchip/common/include/plat_private.h
+++ b/plat/rockchip/common/include/plat_private.h
@@ -124,6 +124,7 @@
 struct gpio_info *plat_get_rockchip_gpio_reset(void);
 struct gpio_info *plat_get_rockchip_gpio_poweroff(void);
 struct gpio_info *plat_get_rockchip_suspend_gpio(uint32_t *count);
+struct apio_info *plat_get_rockchip_suspend_apio(void);
 void plat_rockchip_gpio_init(void);
 
 extern const unsigned char rockchip_power_domain_tree_desc[];

plat/rockchip/common/params_setup.c

diff --git a/plat/rockchip/common/params_setup.c b/plat/rockchip/common/params_setup.c
index 351d213..646c1e1 100644
--- a/plat/rockchip/common/params_setup.c
+++ b/plat/rockchip/common/params_setup.c
@@ -42,10 +42,12 @@
 
 static struct gpio_info param_reset;
 static struct gpio_info param_poweroff;
+static struct bl31_apio_param param_apio;
 static struct gpio_info *rst_gpio;
 static struct gpio_info *poweroff_gpio;
 static struct gpio_info suspend_gpio[10];
 uint32_t suspend_gpio_cnt;
+static struct apio_info *suspend_apio;
 
 struct gpio_info *plat_get_rockchip_gpio_reset(void)
 {
@@ -64,6 +66,11 @@
 	return &suspend_gpio[0];
 }
 
+struct apio_info *plat_get_rockchip_suspend_apio(void)
+{
+	return suspend_apio;
+}
+
 void params_early_setup(void *plat_param_from_bl2)
 {
 	struct bl31_plat_param *bl2_param;
@@ -96,6 +103,11 @@
 			       sizeof(struct gpio_info));
 			suspend_gpio_cnt++;
 			break;
+		case PARAM_SUSPEND_APIO:
+			memcpy(&param_apio, bl2_param,
+			       sizeof(struct bl31_apio_param));
+			suspend_apio = &param_apio.apio;
+			break;
 		default:
 			ERROR("not expected type found %ld\n",
 			      bl2_param->type);