diff options
Diffstat (limited to 'arch/arm/mach-tegra/board-whistler-panel.c')
| -rw-r--r-- | arch/arm/mach-tegra/board-whistler-panel.c | 231 |
1 files changed, 231 insertions, 0 deletions
diff --git a/arch/arm/mach-tegra/board-whistler-panel.c b/arch/arm/mach-tegra/board-whistler-panel.c new file mode 100644 index 000000000000..86539ec94b18 --- /dev/null +++ b/arch/arm/mach-tegra/board-whistler-panel.c @@ -0,0 +1,231 @@ +/* + * arch/arm/mach-tegra/board-whistler-panel.c + * + * Copyright (c) 2010, NVIDIA Corporation. + * + * 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/delay.h> +#include <linux/gpio.h> +#include <linux/regulator/consumer.h> +#include <linux/resource.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/dc.h> +#include <mach/fb.h> + +#include "devices.h" +#include "gpio-names.h" +#include "board.h" + +#define whistler_bl_enb TEGRA_GPIO_PW1 + +static int whistler_backlight_init(struct device *dev) { + int ret; + + ret = gpio_request(whistler_bl_enb, "backlight_enb"); + if (ret < 0) + return ret; + + ret = gpio_direction_output(whistler_bl_enb, 1); + if (ret < 0) + gpio_free(whistler_bl_enb); + else + tegra_gpio_enable(whistler_bl_enb); + + return ret; +}; + +static void whistler_backlight_exit(struct device *dev) { + gpio_set_value(whistler_bl_enb, 0); + gpio_free(whistler_bl_enb); + tegra_gpio_disable(whistler_bl_enb); +} + +static int whistler_backlight_notify(struct device *unused, int brightness) +{ + gpio_set_value(whistler_bl_enb, !!brightness); + return brightness; +} + +static struct platform_pwm_backlight_data whistler_backlight_data = { + .pwm_id = 2, + .max_brightness = 255, + .dft_brightness = 224, + .pwm_period_ns = 5000000, + .init = whistler_backlight_init, + .exit = whistler_backlight_exit, + .notify = whistler_backlight_notify, +}; + +static struct platform_device whistler_backlight_device = { + .name = "pwm-backlight", + .id = -1, + .dev = { + .platform_data = &whistler_backlight_data, + }, +}; + +static struct resource whistler_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, + }, + { + .name = "fbmem", + .flags = IORESOURCE_MEM, + }, +}; + +static struct tegra_dc_mode whistler_panel_modes[] = { + { + .pclk = 27000000, + .h_ref_to_sync = 4, + .v_ref_to_sync = 2, + .h_sync_width = 10, + .v_sync_width = 3, + .h_back_porch = 20, + .v_back_porch = 3, + .h_active = 800, + .v_active = 480, + .h_front_porch = 70, + .v_front_porch = 3, + }, +}; + +static struct tegra_dc_out_pin whistler_dc_out_pins[] = { + { + .name = TEGRA_DC_OUT_PIN_H_SYNC, + .pol = TEGRA_DC_OUT_PIN_POL_LOW, + }, + { + .name = TEGRA_DC_OUT_PIN_V_SYNC, + .pol = TEGRA_DC_OUT_PIN_POL_LOW, + }, + { + .name = TEGRA_DC_OUT_PIN_PIXEL_CLOCK, + .pol = TEGRA_DC_OUT_PIN_POL_LOW, + }, +}; + +static struct tegra_dc_out whistler_disp1_out = { + .type = TEGRA_DC_OUT_RGB, + + .align = TEGRA_DC_ALIGN_MSB, + .order = TEGRA_DC_ORDER_RED_BLUE, + + .modes = whistler_panel_modes, + .n_modes = ARRAY_SIZE(whistler_panel_modes), + + .out_pins = whistler_dc_out_pins, + .n_out_pins = ARRAY_SIZE(whistler_dc_out_pins), +}; + +static struct tegra_fb_data whistler_fb_data = { + .win = 0, + .xres = 800, + .yres = 480, + .bits_per_pixel = 32, +}; + +static struct tegra_dc_platform_data whistler_disp1_pdata = { + .flags = TEGRA_DC_FLAG_ENABLED, + .default_out = &whistler_disp1_out, + .fb = &whistler_fb_data, +}; + +static struct nvhost_device whistler_disp1_device = { + .name = "tegradc", + .id = 0, + .resource = whistler_disp1_resources, + .num_resources = ARRAY_SIZE(whistler_disp1_resources), + .dev = { + .platform_data = &whistler_disp1_pdata, + }, +}; + +static struct nvmap_platform_carveout whistler_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, + }, +}; + +static struct nvmap_platform_data whistler_nvmap_data = { + .carveouts = whistler_carveouts, + .nr_carveouts = ARRAY_SIZE(whistler_carveouts), +}; + +static struct platform_device whistler_nvmap_device = { + .name = "tegra-nvmap", + .id = -1, + .dev = { + .platform_data = &whistler_nvmap_data, + }, +}; + +static struct platform_device *whistler_gfx_devices[] __initdata = { + &whistler_nvmap_device, + &tegra_grhost_device, + &tegra_pwfm2_device, + &whistler_backlight_device, +}; + +int __init whistler_panel_init(void) +{ + int err; + struct resource *res; + + whistler_carveouts[1].base = tegra_carveout_start; + whistler_carveouts[1].size = tegra_carveout_size; + + err = platform_add_devices(whistler_gfx_devices, + ARRAY_SIZE(whistler_gfx_devices)); + + res = nvhost_get_resource_byname(&whistler_disp1_device, + IORESOURCE_MEM, "fbmem"); + res->start = tegra_fb_start; + res->end = tegra_fb_start + tegra_fb_size - 1; + + if (!err) + err = nvhost_device_register(&whistler_disp1_device); + + return err; +} + |