[ARM] pxa/z2: Add regulator support

Register TPS65021 regulator in Zipit Z2.

Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>

1 files changed, 71 insertions, 0 deletions

diff --git a/arch/arm/mach-pxa/z2.c b/arch/arm/mach-pxa/z2.c
index 967e8cb8d6fc..07d8bd8c4c61 100644
--- a/arch/arm/mach-pxa/z2.c
+++ b/arch/arm/mach-pxa/z2.c
@@ -27,6 +27,7 @@
 #include <linux/gpio.h>
 #include <linux/gpio_keys.h>
 #include <linux/delay.h>
+#include <linux/regulator/machine.h>
 
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
@@ -610,6 +611,75 @@ static inline void z2_spi_init(void) {}
 #endif
 
 /******************************************************************************
+ * Core power regulator
+ ******************************************************************************/
+#if defined(CONFIG_REGULATOR_TPS65023) || \
+        defined(CONFIG_REGULATOR_TPS65023_MODULE)
+static struct regulator_consumer_supply z2_tps65021_consumers[] = {
+        {
+                .supply = "vcc_core",
+        }
+};
+
+static struct regulator_init_data z2_tps65021_info[] = {
+        {
+                .constraints = {
+                        .name           = "vcc_core range",
+                        .min_uV         = 800000,
+                        .max_uV         = 1600000,
+                        .always_on      = 1,
+                        .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,
+                },
+                .consumer_supplies      = z2_tps65021_consumers,
+                .num_consumer_supplies  = ARRAY_SIZE(z2_tps65021_consumers),
+        }, {
+                .constraints = {
+                        .name           = "DCDC2",
+                        .min_uV         = 3300000,
+                        .max_uV         = 3300000,
+                        .always_on      = 1,
+                },
+        }, {
+                .constraints = {
+                        .name           = "DCDC3",
+                        .min_uV         = 1800000,
+                        .max_uV         = 1800000,
+                        .always_on      = 1,
+                },
+        }, {
+                .constraints = {
+                        .name           = "LDO1",
+                        .min_uV         = 1000000,
+                        .max_uV         = 3150000,
+                        .always_on      = 1,
+                },
+        }, {
+                .constraints = {
+                        .name           = "LDO2",
+                        .min_uV         = 1050000,
+                        .max_uV         = 3300000,
+                        .always_on      = 1,
+                },
+        }
+};
+
+static struct i2c_board_info __initdata z2_pi2c_board_info[] = {
+        {
+                I2C_BOARD_INFO("tps65021", 0x48),
+                .platform_data  = &z2_tps65021_info,
+        },
+};
+
+static void __init z2_pmic_init(void)
+{
+        pxa27x_set_i2c_power_info(NULL);
+        i2c_register_board_info(1, ARRAY_AND_SIZE(z2_pi2c_board_info));
+}
+#else
+static inline void z2_pmic_init(void) {}
+#endif
+
+/******************************************************************************
  * Machine init
  ******************************************************************************/
 static void __init z2_init(void)
@@ -629,6 +699,7 @@ static void __init z2_init(void)
         z2_pwm_init();
         z2_leds_init();
         z2_keys_init();
+        z2_pmic_init();
 }
 
 MACHINE_START(ZIPIT2, "Zipit Z2")