1 files changed, 256 insertions, 0 deletions

diff --git a/arch/arm/mach-tegra/board-aruba-panel.c b/arch/arm/mach-tegra/board-aruba-panel.c
new file mode 100644
index 00000000000..b014326fc91
--- /dev/null
+++ b/arch/arm/mach-tegra/board-aruba-panel.c
@@ -0,0 +1,256 @@
+/*
+ * arch/arm/mach-tegra/board-aruba-panel.c
+ *
+ * Copyright (c) 2010-2012, 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 <linux/nvhost.h>
+#include <mach/nvmap.h>
+#include <mach/irqs.h>
+#include <mach/iomap.h>
+#include <mach/dc.h>
+#include <mach/fb.h>
+
+#include "board.h"
+#include "devices.h"
+#include "gpio-names.h"
+
+#define aruba_lvds_shutdown     TEGRA_GPIO_PB2
+#define aruba_bl_enb            TEGRA_GPIO_PW1
+
+static int aruba_backlight_init(struct device *dev) {
+        int ret;
+
+        ret = gpio_request(aruba_bl_enb, "backlight_enb");
+        if (ret < 0)
+                return ret;
+
+        ret = gpio_direction_output(aruba_bl_enb, 1);
+        if (ret < 0)
+                gpio_free(aruba_bl_enb);
+        else
+                tegra_gpio_enable(aruba_bl_enb);
+
+        return ret;
+};
+
+static void aruba_backlight_exit(struct device *dev) {
+        gpio_set_value(aruba_bl_enb, 0);
+        gpio_free(aruba_bl_enb);
+        tegra_gpio_disable(aruba_bl_enb);
+}
+
+static int aruba_backlight_notify(struct device *unused, int brightness)
+{
+        gpio_set_value(aruba_bl_enb, !!brightness);
+        return brightness;
+}
+
+static struct platform_pwm_backlight_data aruba_backlight_data = {
+        .pwm_id         = 2,
+        .max_brightness = 255,
+        .dft_brightness = 224,
+        .pwm_period_ns  = 5000000,
+        .init           = aruba_backlight_init,
+        .exit           = aruba_backlight_exit,
+        .notify         = aruba_backlight_notify,
+};
+
+static struct platform_device aruba_backlight_device = {
+        .name   = "pwm-backlight",
+        .id     = -1,
+        .dev    = {
+                .platform_data = &aruba_backlight_data,
+        },
+};
+
+#ifdef CONFIG_TEGRA_DC
+static int aruba_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(aruba_lvds_shutdown, 1);
+        return 0;
+}
+
+static int aruba_panel_disable(void)
+{
+        gpio_set_value(aruba_lvds_shutdown, 0);
+        return 0;
+}
+
+static struct resource aruba_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  = 0,    /* Filled in by aruba_panel_init() */
+                .end    = 0,    /* Filled in by aruba_panel_init() */
+                .flags  = IORESOURCE_MEM,
+        },
+};
+
+static struct tegra_dc_mode aruba_panel_modes[] = {
+        {
+                .pclk = 18000000,
+                .h_ref_to_sync = 8,
+                .v_ref_to_sync = 2,
+                .h_sync_width = 4,
+                .v_sync_width = 1,
+                .h_back_porch = 20,
+                .v_back_porch = 7,
+                .h_active = 480,
+                .v_active = 640,
+                .h_front_porch = 8,
+                .v_front_porch = 8,
+        },
+};
+
+static struct tegra_fb_data aruba_fb_data = {
+        .win            = 0,
+        .xres           = 480,
+        .yres           = 640,
+        .bits_per_pixel = 16,
+};
+
+static struct tegra_dc_out aruba_disp1_out = {
+        .type           = TEGRA_DC_OUT_RGB,
+
+        .align          = TEGRA_DC_ALIGN_MSB,
+        .order          = TEGRA_DC_ORDER_RED_BLUE,
+
+        .modes          = aruba_panel_modes,
+        .n_modes        = ARRAY_SIZE(aruba_panel_modes),
+
+        .enable         = aruba_panel_enable,
+        .disable        = aruba_panel_disable,
+};
+
+static struct tegra_dc_platform_data aruba_disp1_pdata = {
+        .flags          = TEGRA_DC_FLAG_ENABLED,
+        .default_out    = &aruba_disp1_out,
+        .fb             = &aruba_fb_data,
+};
+
+static struct nvhost_device aruba_disp1_device = {
+        .name           = "tegradc",
+        .id             = 0,
+        .resource       = aruba_disp1_resources,
+        .num_resources  = ARRAY_SIZE(aruba_disp1_resources),
+        .dev = {
+                .platform_data = &aruba_disp1_pdata,
+        },
+};
+#endif
+
+#if defined(CONFIG_TEGRA_NVMAP)
+static struct nvmap_platform_carveout aruba_carveouts[] = {
+        [0] = NVMAP_HEAP_CARVEOUT_IRAM_INIT,
+        [1] = {
+                .name           = "generic-0",
+                .usage_mask     = NVMAP_HEAP_CARVEOUT_GENERIC,
+                .base           = 0,    /* Filled in by aruba_panel_init() */
+                .size           = 0,    /* Filled in by aruba_panel_init() */
+                .buddy_size     = SZ_32K,
+        },
+};
+
+static struct nvmap_platform_data aruba_nvmap_data = {
+        .carveouts      = aruba_carveouts,
+        .nr_carveouts   = ARRAY_SIZE(aruba_carveouts),
+};
+
+static struct platform_device aruba_nvmap_device = {
+        .name   = "tegra-nvmap",
+        .id     = -1,
+        .dev    = {
+                .platform_data = &aruba_nvmap_data,
+        },
+};
+#endif
+
+static struct platform_device *aruba_gfx_devices[] __initdata = {
+#if defined(CONFIG_TEGRA_NVMAP)
+        &aruba_nvmap_device,
+#endif
+        &tegra_pwfm2_device,
+        &aruba_backlight_device,
+};
+
+int __init aruba_panel_init(void)
+{
+        int err;
+        struct resource __maybe_unused *res;
+
+#if defined(CONFIG_TEGRA_NVMAP)
+        aruba_carveouts[1].base = tegra_carveout_start;
+        aruba_carveouts[1].size = tegra_carveout_size;
+#endif
+
+#ifdef CONFIG_TEGRA_GRHOST
+        err = nvhost_device_register(&tegra_grhost_device);
+        if (err)
+                return err;
+#endif
+
+        err = platform_add_devices(aruba_gfx_devices,
+                                   ARRAY_SIZE(aruba_gfx_devices));
+
+#if defined(CONFIG_TEGRA_GRHOST) && defined(CONFIG_TEGRA_DC)
+        res = nvhost_get_resource_byname(&aruba_disp1_device,
+                                         IORESOURCE_MEM, "fbmem");
+        res->start = tegra_fb_start;
+        res->end = tegra_fb_start + tegra_fb_size - 1;
+#endif
+
+        /* Copy the bootloader fb to the fb. */
+        tegra_move_framebuffer(tegra_fb_start, tegra_bootloader_fb_start,
+                                min(tegra_fb_size, tegra_bootloader_fb_size));
+
+#if defined(CONFIG_TEGRA_GRHOST) && defined(CONFIG_TEGRA_DC)
+        if (!err)
+                err = nvhost_device_register(&aruba_disp1_device);
+#endif
+
+        return err;
+}