[ARM] tegra: ventana: add tps6586x rtc and pda_power devices

Change-Id: I1c851ab4982764b7f72d968d665d0c898fae25aa
Signed-off-by: Gary King <gking@nvidia.com>

1 files changed, 92 insertions, 1 deletions

diff --git a/arch/arm/mach-tegra/board-ventana-power.c b/arch/arm/mach-tegra/board-ventana-power.c
index 5d998589eb12..868b94faa5d1 100644
--- a/arch/arm/mach-tegra/board-ventana-power.c
+++ b/arch/arm/mach-tegra/board-ventana-power.c
@@ -16,15 +16,100 @@
  * 02111-1307, USA
  */
 #include <linux/i2c.h>
+#include <linux/pda_power.h>
+#include <linux/platform_device.h>
+#include <linux/resource.h>
 #include <linux/regulator/machine.h>
 #include <linux/mfd/tps6586x.h>
 #include <linux/gpio.h>
 #include <mach/suspend.h>
-
+#include "gpio-names.h"
 #include "power.h"
 #include "wakeups-t2.h"
 #include "board.h"
 
+static int ac_ok		= TEGRA_GPIO_PV3;
+static int charge_disable	= TEGRA_GPIO_PR6;
+
+static int charge_init(struct device *dev)
+{
+	int ret = gpio_request(charge_disable, "chg_disable");
+	if (ret < 0)
+		return ret;
+
+	ret = gpio_request(ac_ok, "ac_ok");
+	if (ret < 0) {
+		gpio_free(charge_disable);
+		return ret;
+	}
+
+	ret = gpio_direction_output(charge_disable, 0);
+	if (ret < 0)
+		goto cleanup;
+
+	ret = gpio_direction_input(ac_ok);
+	if (ret < 0)
+		goto cleanup;
+
+	tegra_gpio_enable(ac_ok);
+	tegra_gpio_enable(charge_disable);
+
+	return 0;
+
+cleanup:
+	gpio_free(ac_ok);
+	gpio_free(charge_disable);
+	return ret;
+}
+
+static void charge_exit(struct device *dev)
+{
+	gpio_free(charge_disable);
+}
+
+static int ac_online(void)
+{
+	return !gpio_get_value(ac_ok);
+}
+
+static void set_charge(int flags)
+{
+	if (flags == PDA_POWER_CHARGE_AC)
+		gpio_set_value(charge_disable, 0);
+	else if (!flags)
+		gpio_set_value(charge_disable, 1);
+	else
+		BUG();
+}
+
+static struct resource ventana_pda_resources[] = {
+	[0] = {
+		.name	= "ac",
+		.start	= TEGRA_GPIO_TO_IRQ(TEGRA_GPIO_PV3),
+		.end	= TEGRA_GPIO_TO_IRQ(TEGRA_GPIO_PV3),
+		.flags	= (IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE |
+			   IORESOURCE_IRQ_LOWEDGE),
+	},
+};
+
+static struct pda_power_pdata ventana_pda_data = {
+	.is_ac_online	= ac_online,
+	.exit		= charge_exit,
+	.init		= charge_init,
+	.set_charge	= set_charge,
+};
+
+static struct platform_device ventana_pda_power_device = {
+	.name		= "pda-power",
+	.id		= -1,
+	.resource	= ventana_pda_resources,
+	.num_resources	= ARRAY_SIZE(ventana_pda_resources),
+	.dev	= {
+		.platform_data	= &ventana_pda_data,
+	},
+};
+
+
 static struct regulator_consumer_supply tps658621_sm0_supply[] = {
 	REGULATOR_SUPPLY("vdd_core", NULL),
 };
@@ -121,6 +206,11 @@ static struct tps6586x_subdev_info tps_devs[] = {
 	TPS_REG(LDO_7, &ldo7_data),
 	TPS_REG(LDO_8, &ldo8_data),
 	TPS_REG(LDO_9, &ldo9_data),
+	{
+		.id	= 0,
+		.name	= "tps6586x-rtc",
+		.platform_data = NULL,
+	},
 };
 
 static struct tps6586x_platform_data tps_platform = {
@@ -153,6 +243,7 @@ static struct tegra_suspend_platform_data ventana_suspend_data = {
 
 int __init ventana_regulator_init(void)
 {
+	platform_device_register(&ventana_pda_power_device);
 	i2c_register_board_info(4, ventana_regulators, 1);
 	tegra_init_suspend(&ventana_suspend_data);
 	return 0;