[ARM] tegra: ventana: add graphics support

register the tegradc0, tegradc1, grhost, pwm-backlight and carveout
devices

Change-Id: Ia61c0632470e571cc57279dc3b197ccd1fca80f0
Signed-off-by: Gary King <gking@nvidia.com>

arch/arm/mach-tegra/Makefile

@@ -42,3 +42,4 @@ obj-${CONFIG_MACH_VENTANA}              += board-ventana.o
 obj-${CONFIG_MACH_VENTANA}              += board-ventana-pinmux.o
 obj-${CONFIG_MACH_VENTANA}              += board-ventana-sdhci.o
 obj-${CONFIG_MACH_VENTANA}              += board-ventana-power.o
+obj-${CONFIG_MACH_VENTANA}              += board-ventana-panel.o

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 <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"
+
+#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;
+}
+

arch/arm/mach-tegra/board-ventana-pinmux.c

@@ -65,7 +65,7 @@ static __initdata struct tegra_pingroup_config ventana_pinmux[] = {
 	{TEGRA_PINGROUP_GMC,   TEGRA_MUX_UARTD,         TEGRA_PUPD_NORMAL,    TEGRA_TRI_NORMAL},
 	{TEGRA_PINGROUP_GMD,   TEGRA_MUX_SFLASH,        TEGRA_PUPD_NORMAL,    TEGRA_TRI_TRISTATE},
 	{TEGRA_PINGROUP_GME,   TEGRA_MUX_SDIO4,         TEGRA_PUPD_NORMAL,    TEGRA_TRI_NORMAL},
-	{TEGRA_PINGROUP_GPU,   TEGRA_MUX_RSVD4,         TEGRA_PUPD_NORMAL,    TEGRA_TRI_TRISTATE},
+	{TEGRA_PINGROUP_GPU,   TEGRA_MUX_PWM,           TEGRA_PUPD_NORMAL,    TEGRA_TRI_NORMAL},
 	{TEGRA_PINGROUP_GPU7,  TEGRA_MUX_RTCK,          TEGRA_PUPD_NORMAL,    TEGRA_TRI_NORMAL},
 	{TEGRA_PINGROUP_GPV,   TEGRA_MUX_PCIE,          TEGRA_PUPD_NORMAL,    TEGRA_TRI_TRISTATE},
 	{TEGRA_PINGROUP_HDINT, TEGRA_MUX_HDMI,          TEGRA_PUPD_NORMAL,    TEGRA_TRI_TRISTATE},
@@ -103,12 +103,12 @@ static __initdata struct tegra_pingroup_config ventana_pinmux[] = {
 	{TEGRA_PINGROUP_LHP1,  TEGRA_MUX_DISPLAYA,      TEGRA_PUPD_NORMAL,    TEGRA_TRI_NORMAL},
 	{TEGRA_PINGROUP_LHP2,  TEGRA_MUX_DISPLAYA,      TEGRA_PUPD_NORMAL,    TEGRA_TRI_NORMAL},
 	{TEGRA_PINGROUP_LHS,   TEGRA_MUX_DISPLAYA,      TEGRA_PUPD_NORMAL,    TEGRA_TRI_NORMAL},
-	{TEGRA_PINGROUP_LM0,   TEGRA_MUX_RSVD4,         TEGRA_PUPD_NORMAL,    TEGRA_TRI_TRISTATE},
+	{TEGRA_PINGROUP_LM0,   TEGRA_MUX_RSVD4,         TEGRA_PUPD_NORMAL,    TEGRA_TRI_NORMAL},
 	{TEGRA_PINGROUP_LM1,   TEGRA_MUX_RSVD4,         TEGRA_PUPD_NORMAL,    TEGRA_TRI_TRISTATE},
 	{TEGRA_PINGROUP_LPP,   TEGRA_MUX_DISPLAYA,      TEGRA_PUPD_NORMAL,    TEGRA_TRI_NORMAL},
-	{TEGRA_PINGROUP_LPW0,  TEGRA_MUX_RSVD4,         TEGRA_PUPD_NORMAL,    TEGRA_TRI_TRISTATE},
+	{TEGRA_PINGROUP_LPW0,  TEGRA_MUX_RSVD4,         TEGRA_PUPD_NORMAL,    TEGRA_TRI_NORMAL},
 	{TEGRA_PINGROUP_LPW1,  TEGRA_MUX_RSVD4,         TEGRA_PUPD_NORMAL,    TEGRA_TRI_TRISTATE},
-	{TEGRA_PINGROUP_LPW2,  TEGRA_MUX_RSVD4,         TEGRA_PUPD_NORMAL,    TEGRA_TRI_TRISTATE},
+	{TEGRA_PINGROUP_LPW2,  TEGRA_MUX_RSVD4,         TEGRA_PUPD_NORMAL,    TEGRA_TRI_NORMAL},
 	{TEGRA_PINGROUP_LSC0,  TEGRA_MUX_DISPLAYA,      TEGRA_PUPD_NORMAL,    TEGRA_TRI_NORMAL},
 	{TEGRA_PINGROUP_LSC1,  TEGRA_MUX_RSVD4,         TEGRA_PUPD_NORMAL,    TEGRA_TRI_TRISTATE},
 	{TEGRA_PINGROUP_LSCK,  TEGRA_MUX_RSVD4,         TEGRA_PUPD_NORMAL,    TEGRA_TRI_TRISTATE},
@@ -128,7 +128,7 @@ static __initdata struct tegra_pingroup_config ventana_pinmux[] = {
 	{TEGRA_PINGROUP_SDIO1, TEGRA_MUX_SDIO1,         TEGRA_PUPD_PULL_UP,    TEGRA_TRI_NORMAL},
 	{TEGRA_PINGROUP_SLXA,  TEGRA_MUX_PCIE,          TEGRA_PUPD_PULL_UP,   TEGRA_TRI_TRISTATE},
 	{TEGRA_PINGROUP_SLXC,  TEGRA_MUX_SPDIF,         TEGRA_PUPD_NORMAL,    TEGRA_TRI_TRISTATE},
-	{TEGRA_PINGROUP_SLXD,  TEGRA_MUX_SPDIF,         TEGRA_PUPD_NORMAL,    TEGRA_TRI_TRISTATE},
+	{TEGRA_PINGROUP_SLXD,  TEGRA_MUX_SPDIF,         TEGRA_PUPD_NORMAL,    TEGRA_TRI_NORMAL},
 	{TEGRA_PINGROUP_SLXK,  TEGRA_MUX_PCIE,          TEGRA_PUPD_NORMAL,   TEGRA_TRI_TRISTATE},
 	{TEGRA_PINGROUP_SPDI,  TEGRA_MUX_RSVD2,         TEGRA_PUPD_NORMAL,    TEGRA_TRI_NORMAL},
 	{TEGRA_PINGROUP_SPDO,  TEGRA_MUX_RSVD2,         TEGRA_PUPD_NORMAL,    TEGRA_TRI_NORMAL},

arch/arm/mach-tegra/board-ventana.c

@@ -34,6 +34,7 @@
 #include <linux/gpio_keys.h>
 #include <linux/input.h>
 
+#include <mach/clk.h>
 #include <mach/iomap.h>
 #include <mach/irqs.h>
 #include <mach/pinmux.h>
@@ -75,7 +76,7 @@ static __initdata struct tegra_clk_init_table ventana_clk_init_table[] = {
 	/* name		parent		rate		enabled */
 	{ "uartd",	"pll_p",	216000000,	true},
 	{ "pll_m",	"clk_m",	600000000,	true},
-	{ "emc",	"pll_m",	600000000,	true},
+	{ "pwm",	"clk_32k",	32768,		false},
 	{ NULL,		NULL,		0,		0},
 };
 
@@ -214,6 +215,7 @@ static void __init tegra_ventana_init(void)
 	ventana_regulator_init();
 	ventana_touch_init();
 	ventana_keys_init();
+	ventana_panel_init();
 }
 
 MACHINE_START(VENTANA, "ventana")

arch/arm/mach-tegra/board-ventana.h

@@ -20,5 +20,6 @@
 int ventana_regulator_init(void);
 int ventana_sdhci_init(void);
 int ventana_pinmux_init(void);
+int ventana_panel_init(void);
 
 #endif