diff options
Diffstat (limited to 'arch/arm/mach-tegra/board-harmony-panel.c')
| -rw-r--r-- | arch/arm/mach-tegra/board-harmony-panel.c | 238 |
1 files changed, 207 insertions, 31 deletions
diff --git a/arch/arm/mach-tegra/board-harmony-panel.c b/arch/arm/mach-tegra/board-harmony-panel.c index 309d72e4b490..8d4e8c7033a4 100644 --- a/arch/arm/mach-tegra/board-harmony-panel.c +++ b/arch/arm/mach-tegra/board-harmony-panel.c @@ -1,64 +1,240 @@ /* * arch/arm/mach-tegra/board-harmony-panel.c * - * Copyright (C) 2010 Google, Inc. + * Copyright (c) 2010, NVIDIA Corporation. * - * This software is licensed under the terms of the GNU General Public - * License version 2, as published by the Free Software Foundation, and - * may be copied, distributed, and modified under those terms. + * 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. + * 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/delay.h> +#include <linux/gpio.h> +#include <linux/regulator/consumer.h> #include <linux/resource.h> -#include <linux/platform_device.h> #include <asm/mach-types.h> +#include <linux/platform_device.h> +#include <linux/pwm_backlight.h> +#include <mach/nvhost.h> +#include <mach/nvmap.h> #include <mach/irqs.h> #include <mach/iomap.h> -#include <mach/tegra_fb.h> +#include <mach/dc.h> +#include <mach/fb.h> -/* Framebuffer */ -static struct resource fb_resource[] = { - [0] = { - .start = INT_DISPLAY_GENERAL, - .end = INT_DISPLAY_GENERAL, - .flags = IORESOURCE_IRQ, +#include "devices.h" +#include "gpio-names.h" + +#define harmony_bl_enb TEGRA_GPIO_PB5 +#define harmony_lvds_shutdown TEGRA_GPIO_PB2 +#define harmony_en_vdd_pnl TEGRA_GPIO_PC6 +#define harmony_bl_vdd TEGRA_GPIO_PW0 +#define harmony_bl_pwm TEGRA_GPIO_PB4 + +static int harmony_backlight_init(struct device *dev) +{ + int ret; + + ret = gpio_request(harmony_bl_enb, "backlight_enb"); + if (ret < 0) + return ret; + + ret = gpio_direction_output(harmony_bl_enb, 1); + if (ret < 0) + gpio_free(harmony_bl_enb); + else + tegra_gpio_enable(harmony_bl_enb); + + return ret; +}; + +static void harmony_backlight_exit(struct device *dev) +{ + gpio_set_value(harmony_bl_enb, 0); + gpio_free(harmony_bl_enb); + tegra_gpio_disable(harmony_bl_enb); +} + +static int harmony_backlight_notify(struct device *unused, int brightness) +{ + gpio_set_value(harmony_en_vdd_pnl, !!brightness); + gpio_set_value(harmony_lvds_shutdown, !!brightness); + gpio_set_value(harmony_bl_enb, !!brightness); + return brightness; +} + +static struct platform_pwm_backlight_data harmony_backlight_data = { + .pwm_id = 0, + .max_brightness = 255, + .dft_brightness = 224, + .pwm_period_ns = 5000000, + .init = harmony_backlight_init, + .exit = harmony_backlight_exit, + .notify = harmony_backlight_notify, +}; + +static struct platform_device harmony_backlight_device = { + .name = "pwm-backlight", + .id = -1, + .dev = { + .platform_data = &harmony_backlight_data, }, - [1] = { +}; + +static int harmony_panel_enable(void) +{ + gpio_set_value(harmony_lvds_shutdown, 1); + return 0; +} + +static int harmony_panel_disable(void) +{ + gpio_set_value(harmony_lvds_shutdown, 0); + return 0; +} + +static struct resource harmony_disp1_resources[] = { + { + .name = "irq", + .start = INT_DISPLAY_GENERAL, + .end = INT_DISPLAY_GENERAL, + .flags = IORESOURCE_IRQ, + }, + { + .name = "regs", .start = TEGRA_DISPLAY_BASE, .end = TEGRA_DISPLAY_BASE + TEGRA_DISPLAY_SIZE-1, .flags = IORESOURCE_MEM, }, - [2] = { + { + .name = "fbmem", .start = 0x1c012000, - .end = 0x1c012000 + 0x500000 - 1, + .end = 0x1c012000 + 0x258000 - 1, .flags = IORESOURCE_MEM, }, }; -static struct tegra_fb_lcd_data tegra_fb_lcd_platform_data = { - .lcd_xres = 1024, - .lcd_yres = 600, - .fb_xres = 1024, - .fb_yres = 600, +static struct tegra_dc_mode harmony_panel_modes[] = { + { + .pclk = 42430000, + .h_ref_to_sync = 4, + .v_ref_to_sync = 2, + .h_sync_width = 136, + .v_sync_width = 4, + .h_back_porch = 138, + .v_back_porch = 21, + .h_active = 1024, + .v_active = 600, + .h_front_porch = 34, + .v_front_porch = 4, + }, +}; + +static struct tegra_fb_data harmony_fb_data = { + .win = 0, + .xres = 1024, + .yres = 600, .bits_per_pixel = 16, }; -static struct platform_device tegra_fb_device = { - .name = "tegrafb", +static struct tegra_dc_out harmony_disp1_out = { + .type = TEGRA_DC_OUT_RGB, + + .align = TEGRA_DC_ALIGN_MSB, + .order = TEGRA_DC_ORDER_RED_BLUE, + + .modes = harmony_panel_modes, + .n_modes = ARRAY_SIZE(harmony_panel_modes), + + .enable = harmony_panel_enable, + .disable = harmony_panel_disable, +}; + +static struct tegra_dc_platform_data harmony_disp1_pdata = { + .flags = TEGRA_DC_FLAG_ENABLED, + .default_out = &harmony_disp1_out, + .fb = &harmony_fb_data, +}; + +static struct nvhost_device harmony_disp1_device = { + .name = "tegradc", .id = 0, - .resource = fb_resource, - .num_resources = ARRAY_SIZE(fb_resource), + .resource = harmony_disp1_resources, + .num_resources = ARRAY_SIZE(harmony_disp1_resources), .dev = { - .platform_data = &tegra_fb_lcd_platform_data, + .platform_data = &harmony_disp1_pdata, + }, +}; + +static struct nvmap_platform_carveout harmony_carveouts[] = { + [0] = { + .name = "iram", + .usage_mask = NVMAP_HEAP_CARVEOUT_IRAM, + .base = TEGRA_IRAM_BASE, + .size = TEGRA_IRAM_SIZE, + .buddy_size = 0, /* no buddy allocation for IRAM */ + }, + [1] = { + .name = "generic-0", + .usage_mask = NVMAP_HEAP_CARVEOUT_GENERIC, + .base = 0x18C00000, + .size = SZ_128M - 0xC00000, + .buddy_size = SZ_32K, }, }; -int __init harmony_panel_init(void) { - return platform_device_register(&tegra_fb_device); +static struct nvmap_platform_data harmony_nvmap_data = { + .carveouts = harmony_carveouts, + .nr_carveouts = ARRAY_SIZE(harmony_carveouts), +}; + +static struct platform_device harmony_nvmap_device = { + .name = "tegra-nvmap", + .id = -1, + .dev = { + .platform_data = &harmony_nvmap_data, + }, +}; + +static struct platform_device *harmony_gfx_devices[] __initdata = { + &harmony_nvmap_device, + &tegra_grhost_device, + &tegra_pwfm0_device, + &harmony_backlight_device, +}; + +int __init harmony_panel_init(void) +{ + int err; + + gpio_request(harmony_en_vdd_pnl, "en_vdd_pnl"); + gpio_direction_output(harmony_en_vdd_pnl, 1); + tegra_gpio_enable(harmony_en_vdd_pnl); + + gpio_request(harmony_bl_vdd, "bl_vdd"); + gpio_direction_output(harmony_bl_vdd, 1); + tegra_gpio_enable(harmony_bl_vdd); + + gpio_request(harmony_lvds_shutdown, "lvds_shdn"); + gpio_direction_output(harmony_lvds_shutdown, 1); + tegra_gpio_enable(harmony_lvds_shutdown); + + err = platform_add_devices(harmony_gfx_devices, + ARRAY_SIZE(harmony_gfx_devices)); + + if (!err) + err = nvhost_device_register(&harmony_disp1_device); + + return err; } |