From 407cea433735b1fc52032860f66d7dadeb8e9c1b Mon Sep 17 00:00:00 2001 From: Gary King Date: Fri, 1 Oct 2010 17:00:39 -0700 Subject: [ARM] tegra: ventana: add graphics support register the tegradc0, tegradc1, grhost, pwm-backlight and carveout devices Change-Id: Ia61c0632470e571cc57279dc3b197ccd1fca80f0 Signed-off-by: Gary King --- arch/arm/mach-tegra/board-ventana-panel.c | 325 ++++++++++++++++++++++++++++++ 1 file changed, 325 insertions(+) create mode 100644 arch/arm/mach-tegra/board-ventana-panel.c (limited to 'arch/arm/mach-tegra/board-ventana-panel.c') diff --git a/arch/arm/mach-tegra/board-ventana-panel.c b/arch/arm/mach-tegra/board-ventana-panel.c new file mode 100644 index 000000000000..f3e75e25bf6b --- /dev/null +++ b/arch/arm/mach-tegra/board-ventana-panel.c @@ -0,0 +1,325 @@ +/* + * arch/arm/mach-tegra/board-ventana-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 +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "devices.h" +#include "gpio-names.h" + +#define ventana_bl_enb TEGRA_GPIO_PD4 +#define ventana_lvds_shutdown TEGRA_GPIO_PB2 +#define ventana_hdmi_hpd TEGRA_GPIO_PN7 +#define ventana_hdmi_enb TEGRA_GPIO_PV5 + +static int ventana_backlight_init(struct device *dev) { + int ret; + + ret = gpio_request(ventana_bl_enb, "backlight_enb"); + if (ret < 0) + return ret; + + ret = gpio_direction_output(ventana_bl_enb, 1); + if (ret < 0) + gpio_free(ventana_bl_enb); + else + tegra_gpio_enable(ventana_bl_enb); + + return ret; +}; + +static void ventana_backlight_exit(struct device *dev) { + gpio_set_value(ventana_bl_enb, 0); + gpio_free(ventana_bl_enb); + tegra_gpio_disable(ventana_bl_enb); +} + +static int ventana_backlight_notify(struct device *unused, int brightness) +{ + gpio_set_value(ventana_bl_enb, !!brightness); + return brightness; +} + +static struct platform_pwm_backlight_data ventana_backlight_data = { + .pwm_id = 2, + .max_brightness = 255, + .dft_brightness = 224, + .pwm_period_ns = 5000000, + .init = ventana_backlight_init, + .exit = ventana_backlight_exit, + .notify = ventana_backlight_notify, +}; + +static struct platform_device ventana_backlight_device = { + .name = "pwm-backlight", + .id = -1, + .dev = { + .platform_data = &ventana_backlight_data, + }, +}; + +static int ventana_panel_enable(void) +{ + static struct regulator *reg = NULL; + + if (reg == NULL) { + reg = regulator_get(NULL, "avdd_lvds"); + if (WARN_ON(IS_ERR(reg))) + pr_err("%s: couldn't get regulator avdd_lvds: %ld\n", + __func__, PTR_ERR(reg)); + else + regulator_enable(reg); + } + + gpio_set_value(ventana_lvds_shutdown, 1); + return 0; +} + +static int ventana_panel_disable(void) +{ + gpio_set_value(ventana_lvds_shutdown, 0); + return 0; +} + +static int ventana_hdmi_enable(void) +{ + gpio_set_value(ventana_hdmi_enb, 1); + return 0; +} + +static int ventana_hdmi_disable(void) +{ + gpio_set_value(ventana_hdmi_enb, 0); + return 0; +} + +static struct resource ventana_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", + .start = 0x18012000, + .end = 0x18414000 - 1, /* enough for 1080P 16bpp */ + .flags = IORESOURCE_MEM, + }, +}; + +static struct resource ventana_disp2_resources[] = { + { + .name = "irq", + .start = INT_DISPLAY_B_GENERAL, + .end = INT_DISPLAY_B_GENERAL, + .flags = IORESOURCE_IRQ, + }, + { + .name = "regs", + .start = TEGRA_DISPLAY2_BASE, + .end = TEGRA_DISPLAY2_BASE + TEGRA_DISPLAY2_SIZE - 1, + .flags = IORESOURCE_MEM, + }, + { + .name = "fbmem", + .flags = IORESOURCE_MEM, + .start = 0x18414000, + .end = 0x18BFD000 - 1, + }, + { + .name = "hdmi_regs", + .start = TEGRA_HDMI_BASE, + .end = TEGRA_HDMI_BASE + TEGRA_HDMI_SIZE - 1, + .flags = IORESOURCE_MEM, + }, +}; + +static struct tegra_dc_mode ventana_panel_modes[] = { + { + .pclk = 62200000, + .h_ref_to_sync = 11, + .v_ref_to_sync = 1, + .h_sync_width = 58, + .v_sync_width = 4, + .h_back_porch = 58, + .v_back_porch = 4, + .h_active = 1366, + .v_active = 768, + .h_front_porch = 58, + .v_front_porch = 4, + }, +}; + +static struct tegra_fb_data ventana_fb_data = { + .win = 0, + .xres = 1366, + .yres = 768, + .bits_per_pixel = 16, +}; + +static struct tegra_fb_data ventana_hdmi_fb_data = { + .win = 0, + .xres = 1280, + .yres = 720, + .bits_per_pixel = 16, +}; + +static struct tegra_dc_out ventana_disp1_out = { + .type = TEGRA_DC_OUT_RGB, + + .align = TEGRA_DC_ALIGN_MSB, + .order = TEGRA_DC_ORDER_RED_BLUE, + + .modes = ventana_panel_modes, + .n_modes = ARRAY_SIZE(ventana_panel_modes), + + .enable = ventana_panel_enable, + .disable = ventana_panel_disable, +}; + +static struct tegra_dc_out ventana_disp2_out = { + .type = TEGRA_DC_OUT_HDMI, + .flags = TEGRA_DC_OUT_HOTPLUG_HIGH, + + .dcc_bus = 1, + .hotplug_gpio = ventana_hdmi_hpd, + + .align = TEGRA_DC_ALIGN_MSB, + .order = TEGRA_DC_ORDER_RED_BLUE, + + .enable = ventana_hdmi_enable, + .disable = ventana_hdmi_disable, +}; + +static struct tegra_dc_platform_data ventana_disp1_pdata = { + .flags = TEGRA_DC_FLAG_ENABLED, + .default_out = &ventana_disp1_out, + .fb = &ventana_fb_data, +}; + +static struct tegra_dc_platform_data ventana_disp2_pdata = { + .flags = TEGRA_DC_FLAG_ENABLED, + .default_out = &ventana_disp2_out, + .fb = &ventana_hdmi_fb_data, +}; + +static struct nvhost_device ventana_disp1_device = { + .name = "tegradc", + .id = 0, + .resource = ventana_disp1_resources, + .num_resources = ARRAY_SIZE(ventana_disp1_resources), + .dev = { + .platform_data = &ventana_disp1_pdata, + }, +}; + +static struct nvhost_device ventana_disp2_device = { + .name = "tegradc", + .id = 1, + .resource = ventana_disp2_resources, + .num_resources = ARRAY_SIZE(ventana_disp2_resources), + .dev = { + .platform_data = &ventana_disp2_pdata, + }, +}; + +static struct nvmap_platform_carveout ventana_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 ventana_nvmap_data = { + .carveouts = ventana_carveouts, + .nr_carveouts = ARRAY_SIZE(ventana_carveouts), +}; + +static struct platform_device ventana_nvmap_device = { + .name = "tegra-nvmap", + .id = -1, + .dev = { + .platform_data = &ventana_nvmap_data, + }, +}; + +static struct platform_device *ventana_gfx_devices[] __initdata = { + &ventana_nvmap_device, + &tegra_grhost_device, + &tegra_pwfm2_device, + &ventana_backlight_device, +}; + +int __init ventana_panel_init(void) +{ + int err; + + gpio_request(ventana_lvds_shutdown, "lvds_shdn"); + gpio_direction_output(ventana_lvds_shutdown, 1); + tegra_gpio_enable(ventana_lvds_shutdown); + + gpio_request(ventana_hdmi_enb, "hdmi_5v_en"); + gpio_direction_output(ventana_hdmi_enb, 0); + tegra_gpio_enable(ventana_hdmi_enb); + + gpio_request(ventana_hdmi_hpd, "hdmi_hpd"); + gpio_direction_input(ventana_hdmi_hpd); + tegra_gpio_enable(ventana_hdmi_hpd); + + err = platform_add_devices(ventana_gfx_devices, + ARRAY_SIZE(ventana_gfx_devices)); + + if (!err) + err = nvhost_device_register(&ventana_disp1_device); + + if (!err) + err = nvhost_device_register(&ventana_disp2_device); + + return err; +} + -- cgit v1.2.3