/*
 * arch/arm/mach-tegra/board-ventana.c
 *
 * Copyright (c) 2010-2011 NVIDIA Corporation.
 * Copyright (c) 2012, NVIDIA CORPORATION. All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
 * more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */

#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/ctype.h>
#include <linux/platform_device.h>
#include <linux/clk.h>
#include <linux/serial_8250.h>
#include <linux/i2c.h>
#include <linux/i2c/panjit_ts.h>
#include <linux/dma-mapping.h>
#include <linux/delay.h>
#include <linux/i2c-tegra.h>
#include <linux/gpio.h>
#include <linux/gpio_keys.h>
#include <linux/input.h>
#include <linux/platform_data/tegra_usb.h>
#include <linux/mfd/tps6586x.h>
#include <linux/memblock.h>
#include <linux/i2c/atmel_mxt_ts.h>
#include <linux/tegra_uart.h>
#include <linux/rfkill-gpio.h>

#include <sound/wm8903.h>

#include <mach/clk.h>
#include <mach/iomap.h>
#include <mach/irqs.h>
#include <mach/pinmux.h>
#include <mach/iomap.h>
#include <mach/io.h>
#include <mach/i2s.h>
#include <mach/tegra_asoc_pdata.h>

#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <mach/usb_phy.h>

#include "board.h"
#include "clock.h"
#include "board-ventana.h"
#include "devices.h"
#include "gpio-names.h"
#include "fuse.h"
#include "wakeups-t2.h"
#include "pm.h"


static struct rfkill_gpio_platform_data ventana_bt_rfkill_pdata[] = {
	{
		.name           = "bt_rfkill",
		.shutdown_gpio  = TEGRA_GPIO_PU0,
		.reset_gpio     = TEGRA_GPIO_INVALID,
		.type           = RFKILL_TYPE_BLUETOOTH,
	},
};

static struct platform_device ventana_bt_rfkill_device = {
	.name = "rfkill_gpio",
	.id             = -1,
	.dev = {
		.platform_data  = ventana_bt_rfkill_pdata,
	},
};

static void __init ventana_bt_rfkill(void)
{
	/*Add Clock Resource*/
	clk_add_alias("bcm4329_32k_clk", ventana_bt_rfkill_device.name, \
				"blink", NULL);
	return;
}

static struct resource ventana_bluesleep_resources[] = {
	[0] = {
		.name = "gpio_host_wake",
			.start  = TEGRA_GPIO_PU6,
			.end    = TEGRA_GPIO_PU6,
			.flags  = IORESOURCE_IO,
	},
	[1] = {
		.name = "gpio_ext_wake",
			.start  = TEGRA_GPIO_PU1,
			.end    = TEGRA_GPIO_PU1,
			.flags  = IORESOURCE_IO,
	},
	[2] = {
		.name = "host_wake",
			.start  = TEGRA_GPIO_TO_IRQ(TEGRA_GPIO_PU6),
			.end    = TEGRA_GPIO_TO_IRQ(TEGRA_GPIO_PU6),
			.flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
	},
};

static struct platform_device ventana_bluesleep_device = {
	.name           = "bluesleep",
	.id             = -1,
	.num_resources  = ARRAY_SIZE(ventana_bluesleep_resources),
	.resource       = ventana_bluesleep_resources,
};

static void __init ventana_setup_bluesleep(void)
{
	platform_device_register(&ventana_bluesleep_device);
	return;
}

static __initdata struct tegra_clk_init_table ventana_clk_init_table[] = {
	/* name		parent		rate		enabled */
	{ "blink",	"clk_32k",	32768,		false},
	{ "pll_p_out4",	"pll_p",	24000000,	true },
	{ "pwm",	"clk_32k",	32768,		false},
	{ "i2s1",	"pll_a_out0",	0,		false},
	{ "i2s2",	"pll_a_out0",	0,		false},
	{ "spdif_out",	"pll_a_out0",	0,		false},
	{ NULL,		NULL,		0,		0},
};

static struct tegra_i2c_platform_data ventana_i2c1_platform_data = {
	.adapter_nr	= 0,
	.bus_count	= 1,
	.bus_clk_rate	= { 400000, 0 },
	.slave_addr = 0x00FC,
	.scl_gpio		= {TEGRA_GPIO_PC4, 0},
	.sda_gpio		= {TEGRA_GPIO_PC5, 0},
	.arb_recovery = arb_lost_recovery,
};

static const struct tegra_pingroup_config i2c2_ddc = {
	.pingroup	= TEGRA_PINGROUP_DDC,
	.func		= TEGRA_MUX_I2C2,
};

static const struct tegra_pingroup_config i2c2_gen2 = {
	.pingroup	= TEGRA_PINGROUP_PTA,
	.func		= TEGRA_MUX_I2C2,
};

static struct tegra_i2c_platform_data ventana_i2c2_platform_data = {
	.adapter_nr	= 1,
	.bus_count	= 2,
	.bus_clk_rate	= { 10000, 10000 },
	.bus_mux	= { &i2c2_ddc, &i2c2_gen2 },
	.bus_mux_len	= { 1, 1 },
	.slave_addr = 0x00FC,
	.scl_gpio		= {0, TEGRA_GPIO_PT5},
	.sda_gpio		= {0, TEGRA_GPIO_PT6},
	.arb_recovery = arb_lost_recovery,
};

static struct tegra_i2c_platform_data ventana_i2c3_platform_data = {
	.adapter_nr	= 3,
	.bus_count	= 1,
	.bus_clk_rate	= { 400000, 0 },
	.slave_addr = 0x00FC,
	.scl_gpio		= {TEGRA_GPIO_PBB2, 0},
	.sda_gpio		= {TEGRA_GPIO_PBB3, 0},
	.arb_recovery = arb_lost_recovery,
};

static struct tegra_i2c_platform_data ventana_dvc_platform_data = {
	.adapter_nr	= 4,
	.bus_count	= 1,
	.bus_clk_rate	= { 400000, 0 },
	.is_dvc		= true,
	.scl_gpio		= {TEGRA_GPIO_PZ6, 0},
	.sda_gpio		= {TEGRA_GPIO_PZ7, 0},
	.arb_recovery = arb_lost_recovery,
};

static struct wm8903_platform_data ventana_wm8903_pdata = {
	.irq_active_low = 0,
	.micdet_cfg = 0,
	.micdet_delay = 100,
	.gpio_base = WM8903_GPIO_BASE,
	.gpio_cfg = {
		(WM8903_GPn_FN_DMIC_LR_CLK_OUTPUT << WM8903_GP1_FN_SHIFT),
		(WM8903_GPn_FN_DMIC_LR_CLK_OUTPUT << WM8903_GP2_FN_SHIFT) |
			WM8903_GP2_DIR,
		0,
		WM8903_GPIO_NO_CONFIG,
		WM8903_GPIO_NO_CONFIG,
	},
};

static struct i2c_board_info __initdata wm8903_board_info = {
	I2C_BOARD_INFO("wm8903", 0x1a),
	.platform_data = &ventana_wm8903_pdata,
	.irq = TEGRA_GPIO_TO_IRQ(TEGRA_GPIO_CDC_IRQ),
};

static void ventana_i2c_init(void)
{
	tegra_i2c_device1.dev.platform_data = &ventana_i2c1_platform_data;
	tegra_i2c_device2.dev.platform_data = &ventana_i2c2_platform_data;
	tegra_i2c_device3.dev.platform_data = &ventana_i2c3_platform_data;
	tegra_i2c_device4.dev.platform_data = &ventana_dvc_platform_data;

	platform_device_register(&tegra_i2c_device1);
	platform_device_register(&tegra_i2c_device2);
	platform_device_register(&tegra_i2c_device3);
	platform_device_register(&tegra_i2c_device4);

	i2c_register_board_info(0, &wm8903_board_info, 1);
}
static struct platform_device *ventana_uart_devices[] __initdata = {
	&tegra_uartb_device,
	&tegra_uartc_device,
	&tegra_uartd_device,
};

static struct uart_clk_parent uart_parent_clk[] = {
	[0] = {.name = "pll_p"},
	[1] = {.name = "pll_m"},
	[2] = {.name = "clk_m"},
};

static struct tegra_uart_platform_data ventana_uart_pdata;

static void __init uart_debug_init(void)
{
	unsigned long rate;
	struct clk *c;

	/* UARTD is the debug port. */
	pr_info("Selecting UARTD as the debug console\n");
	ventana_uart_devices[2] = &debug_uartd_device;
	debug_uart_port_base = ((struct plat_serial8250_port *)(
			debug_uartd_device.dev.platform_data))->mapbase;
	debug_uart_clk = clk_get_sys("serial8250.0", "uartd");

	/* Clock enable for the debug channel */
	if (!IS_ERR_OR_NULL(debug_uart_clk)) {
		rate = ((struct plat_serial8250_port *)(
			debug_uartd_device.dev.platform_data))->uartclk;
		pr_info("The debug console clock name is %s\n",
						debug_uart_clk->name);
		c = tegra_get_clock_by_name("pll_p");
		if (IS_ERR_OR_NULL(c))
			pr_err("Not getting the parent clock pll_p\n");
		else
			clk_set_parent(debug_uart_clk, c);

		clk_enable(debug_uart_clk);
		clk_set_rate(debug_uart_clk, rate);
	} else {
		pr_err("Not getting the clock %s for debug console\n",
					debug_uart_clk->name);
	}
}

static void __init ventana_uart_init(void)
{
	int i;
	struct clk *c;

	for (i = 0; i < ARRAY_SIZE(uart_parent_clk); ++i) {
		c = tegra_get_clock_by_name(uart_parent_clk[i].name);
		if (IS_ERR_OR_NULL(c)) {
			pr_err("Not able to get the clock for %s\n",
						uart_parent_clk[i].name);
			continue;
		}
		uart_parent_clk[i].parent_clk = c;
		uart_parent_clk[i].fixed_clk_rate = clk_get_rate(c);
	}
	ventana_uart_pdata.parent_clk_list = uart_parent_clk;
	ventana_uart_pdata.parent_clk_count = ARRAY_SIZE(uart_parent_clk);
	tegra_uartb_device.dev.platform_data = &ventana_uart_pdata;
	tegra_uartc_device.dev.platform_data = &ventana_uart_pdata;
	tegra_uartd_device.dev.platform_data = &ventana_uart_pdata;

	/* Register low speed only if it is selected */
	if (!is_tegra_debug_uartport_hs())
		uart_debug_init();

	platform_add_devices(ventana_uart_devices,
				ARRAY_SIZE(ventana_uart_devices));
}

#ifdef CONFIG_KEYBOARD_GPIO
#define GPIO_KEY(_id, _gpio, _iswake)		\
	{					\
		.code = _id,			\
		.gpio = TEGRA_GPIO_##_gpio,	\
		.active_low = 1,		\
		.desc = #_id,			\
		.type = EV_KEY,			\
		.wakeup = _iswake,		\
		.debounce_interval = 10,	\
	}

static struct gpio_keys_button ventana_keys[] = {
	[0] = GPIO_KEY(KEY_FIND, PQ3, 0),
	[1] = GPIO_KEY(KEY_HOME, PQ1, 0),
	[2] = GPIO_KEY(KEY_BACK, PQ2, 0),
	[3] = GPIO_KEY(KEY_VOLUMEUP, PQ5, 0),
	[4] = GPIO_KEY(KEY_VOLUMEDOWN, PQ4, 0),
	[5] = GPIO_KEY(KEY_POWER, PV2, 1),
	[6] = GPIO_KEY(KEY_MENU, PC7, 0),
};

#define PMC_WAKE_STATUS 0x14

static int ventana_wakeup_key(void)
{
	unsigned long status =
		readl(IO_ADDRESS(TEGRA_PMC_BASE) + PMC_WAKE_STATUS);

	return (status & (1 << TEGRA_WAKE_GPIO_PV2)) ?
		KEY_POWER : KEY_RESERVED;
}

static struct gpio_keys_platform_data ventana_keys_platform_data = {
	.buttons	= ventana_keys,
	.nbuttons	= ARRAY_SIZE(ventana_keys),
	.wakeup_key	= ventana_wakeup_key,
};

static struct platform_device ventana_keys_device = {
	.name	= "gpio-keys",
	.id	= 0,
	.dev	= {
		.platform_data	= &ventana_keys_platform_data,
	},
};
#endif

static struct platform_device tegra_camera = {
	.name = "tegra_camera",
	.id = -1,
};

static struct tegra_asoc_platform_data ventana_audio_pdata = {
	.gpio_spkr_en		= TEGRA_GPIO_SPKR_EN,
	.gpio_hp_det		= TEGRA_GPIO_HP_DET,
	.gpio_hp_mute		= -1,
	.gpio_int_mic_en	= TEGRA_GPIO_INT_MIC_EN,
	.gpio_ext_mic_en	= TEGRA_GPIO_EXT_MIC_EN,
	.i2s_param[HIFI_CODEC]	= {
		.audio_port_id	= 0,
		.is_i2s_master	= 1,
		.i2s_mode	= TEGRA_DAIFMT_I2S,
	},
	.i2s_param[BASEBAND]	= {
		.audio_port_id	= -1,
	},
	.i2s_param[BT_SCO]	= {
		.audio_port_id	= 3,
		.is_i2s_master	= 1,
		.i2s_mode	= TEGRA_DAIFMT_DSP_A,
	},
};

static struct platform_device ventana_audio_device = {
	.name	= "tegra-snd-wm8903",
	.id	= 0,
	.dev	= {
		.platform_data  = &ventana_audio_pdata,
	},
};

static struct platform_device *ventana_devices[] __initdata = {
	&tegra_pmu_device,
	&tegra_gart_device,
	&tegra_aes_device,
#ifdef CONFIG_KEYBOARD_GPIO
	&ventana_keys_device,
#endif
	&tegra_wdt_device,
	&tegra_avp_device,
	&tegra_camera,
	&tegra_i2s_device1,
	&tegra_i2s_device2,
	&tegra_spdif_device,
	&tegra_das_device,
	&spdif_dit_device,
	&bluetooth_dit_device,
	&ventana_bt_rfkill_device,
	&tegra_pcm_device,
	&ventana_audio_device,
};


static struct mxt_platform_data atmel_mxt_info = {
	.x_line		= 27,
	.y_line		= 42,
	.x_size		= 768,
	.y_size		= 1366,
	.blen		= 0x20,
	.threshold	= 0x3C,
	.voltage	= 3300000,
	.orient		= MXT_ROTATED_90,
	.irqflags	= IRQF_TRIGGER_FALLING,
};

static struct i2c_board_info __initdata i2c_info[] = {
	{
	 I2C_BOARD_INFO("atmel_mxt_ts", 0x5A),
	 .irq = TEGRA_GPIO_TO_IRQ(TEGRA_GPIO_PV6),
	 .platform_data = &atmel_mxt_info,
	 },
};

static int __init ventana_touch_init_atmel(void)
{
	gpio_request(TEGRA_GPIO_PV6, "atmel-irq");
	gpio_direction_input(TEGRA_GPIO_PV6);

	gpio_request(TEGRA_GPIO_PQ7, "atmel-reset");
	gpio_direction_output(TEGRA_GPIO_PQ7, 0);
	msleep(1);
	gpio_set_value(TEGRA_GPIO_PQ7, 1);
	msleep(100);

	i2c_register_board_info(0, i2c_info, 1);

	return 0;
}

static struct panjit_i2c_ts_platform_data panjit_data = {
	.gpio_reset = TEGRA_GPIO_PQ7,
};

static struct i2c_board_info __initdata ventana_i2c_bus1_touch_info[] = {
	{
		I2C_BOARD_INFO("panjit_touch", 0x3),
		.irq = TEGRA_GPIO_TO_IRQ(TEGRA_GPIO_PV6),
		.platform_data = &panjit_data,
	},
};

static int __init ventana_touch_init_panjit(void)
{
	i2c_register_board_info(0, ventana_i2c_bus1_touch_info, 1);

	return 0;
}

static int __init ventana_gps_init(void)
{
	struct clk *clk32 = clk_get_sys(NULL, "blink");
	if (!IS_ERR(clk32)) {
		clk_set_rate(clk32,clk32->parent->rate);
		clk_enable(clk32);
	}

	return 0;
}

static struct tegra_usb_platform_data tegra_udc_pdata = {
	.port_otg = true,
	.has_hostpc = false,
	.phy_intf = TEGRA_USB_PHY_INTF_UTMI,
	.op_mode = TEGRA_USB_OPMODE_DEVICE,
	.u_data.dev = {
		.vbus_pmu_irq = 0,
		.vbus_gpio = -1,
		.charging_supported = false,
		.remote_wakeup_supported = false,
	},
	.u_cfg.utmi = {
		.hssync_start_delay = 0,
		.elastic_limit = 16,
		.idle_wait_delay = 17,
		.term_range_adj = 6,
		.xcvr_setup = 8,
		.xcvr_lsfslew = 2,
		.xcvr_lsrslew = 2,
		.xcvr_setup_offset = 0,
		.xcvr_use_fuses = 1,
	},
};

static struct tegra_usb_platform_data tegra_ehci1_utmi_pdata = {
	.port_otg = true,
	.has_hostpc = false,
	.phy_intf = TEGRA_USB_PHY_INTF_UTMI,
	.op_mode	= TEGRA_USB_OPMODE_HOST,
	.u_data.host = {
		.vbus_gpio = TEGRA_GPIO_PD0,
		.vbus_reg = NULL,
		.hot_plug = true,
		.remote_wakeup_supported = false,
		.power_off_on_suspend = false,
	},
	.u_cfg.utmi = {
		.hssync_start_delay = 9,
		.elastic_limit = 16,
		.idle_wait_delay = 17,
		.term_range_adj = 6,
		.xcvr_setup = 8,
		.xcvr_lsfslew = 2,
		.xcvr_lsrslew = 2,
	},
};

static void ulpi_link_platform_open(void)
{
	int reset_gpio = TEGRA_GPIO_PV1;

	gpio_request(reset_gpio, "ulpi_phy_reset");
	gpio_direction_output(reset_gpio, 0);
	msleep(5);
	gpio_direction_output(reset_gpio, 1);
}

static struct tegra_usb_phy_platform_ops ulpi_link_plat_ops = {
	.open = ulpi_link_platform_open,
};

static struct tegra_usb_platform_data tegra_ehci2_ulpi_link_pdata = {
	.port_otg = false,
	.has_hostpc = false,
	.phy_intf = TEGRA_USB_PHY_INTF_ULPI_LINK,
	.op_mode	= TEGRA_USB_OPMODE_HOST,
	.u_data.host = {
		.vbus_gpio = -1,
		.vbus_reg = NULL,
		.hot_plug = false,
		.remote_wakeup_supported = false,
		.power_off_on_suspend = true,
	},
	.u_cfg.ulpi = {
		.shadow_clk_delay = 10,
		.clock_out_delay = 1,
		.data_trimmer = 4,
		.stpdirnxt_trimmer = 4,
		.dir_trimmer = 4,
		.clk = "cdev2",
	},
	.ops = &ulpi_link_plat_ops,
};

static struct tegra_usb_platform_data tegra_ehci3_utmi_pdata = {
	.port_otg = false,
	.has_hostpc = false,
	.phy_intf = TEGRA_USB_PHY_INTF_UTMI,
	.op_mode	= TEGRA_USB_OPMODE_HOST,
	.u_data.host = {
		.vbus_gpio = TEGRA_GPIO_PD3,
		.vbus_reg = NULL,
		.hot_plug = true,
		.remote_wakeup_supported = false,
		.power_off_on_suspend = false,
	},
	.u_cfg.utmi = {
		.hssync_start_delay = 9,
		.elastic_limit = 16,
		.idle_wait_delay = 17,
		.term_range_adj = 6,
		.xcvr_setup = 8,
		.xcvr_lsfslew = 2,
		.xcvr_lsrslew = 2,
	},
};

static struct tegra_usb_otg_data tegra_otg_pdata = {
	.ehci_device = &tegra_ehci1_device,
	.ehci_pdata = &tegra_ehci1_utmi_pdata,
};

static void ventana_usb_init(void)
{
	/* OTG should be the first to be registered */
	tegra_otg_device.dev.platform_data = &tegra_otg_pdata;
	platform_device_register(&tegra_otg_device);

	tegra_udc_device.dev.platform_data = &tegra_udc_pdata;
	platform_device_register(&tegra_udc_device);

	tegra_ehci2_device.dev.platform_data = &tegra_ehci2_ulpi_link_pdata;
	platform_device_register(&tegra_ehci2_device);

	tegra_ehci3_device.dev.platform_data = &tegra_ehci3_utmi_pdata;
	platform_device_register(&tegra_ehci3_device);
}

static void __init tegra_ventana_init(void)
{
	struct board_info BoardInfo;

	tegra_clk_init_from_table(ventana_clk_init_table);
	ventana_pinmux_init();
	ventana_i2c_init();
	ventana_uart_init();
	platform_add_devices(ventana_devices, ARRAY_SIZE(ventana_devices));
	tegra_ram_console_debug_init();
	ventana_sdhci_init();
	ventana_charge_init();
	ventana_regulator_init();
	ventana_charger_init();

	tegra_get_board_info(&BoardInfo);

	/* boards with sku > 0 have atmel touch panels */
	if (BoardInfo.sku) {
		pr_info("Initializing Atmel touch driver\n");
		ventana_touch_init_atmel();
	} else {
		pr_info("Initializing Panjit touch driver\n");
		ventana_touch_init_panjit();
	}

	ventana_usb_init();
	ventana_gps_init();
	ventana_panel_init();
	ventana_sensors_init();
	ventana_bt_rfkill();
	ventana_emc_init();

	ventana_setup_bluesleep();
	tegra_release_bootloader_fb();
}

int __init tegra_ventana_protected_aperture_init(void)
{
	if (!machine_is_ventana())
		return 0;

	tegra_protected_aperture_init(tegra_grhost_aperture);
	return 0;
}
late_initcall(tegra_ventana_protected_aperture_init);

void __init tegra_ventana_reserve(void)
{
	if (memblock_reserve(0x0, 4096) < 0)
		pr_warn("Cannot reserve first 4K of memory for safety\n");

	tegra_reserve(SZ_256M, SZ_8M + SZ_1M, SZ_16M);
	tegra_ram_console_debug_reserve(SZ_1M);
}

static const char *ventana_dt_board_compat[] = {
	"nvidia,ventana",
	NULL
};

MACHINE_START(VENTANA, "ventana")
	.boot_params    = 0x00000100,
	.map_io         = tegra_map_common_io,
	.init_early	= tegra_init_early,
	.init_irq       = tegra_init_irq,
	.reserve        = tegra_ventana_reserve,
	.timer          = &tegra_timer,
	.init_machine   = tegra_ventana_init,
	.dt_compat	= ventana_dt_board_compat,
MACHINE_END