ENGR00153887 mx53 ard: add display support

- Add VGA support. The command option to use VGA as primary
  display: video=mxcfb0:dev=vga,VGA-XGA,if=GBR24 ard-vga
  For VGA, Need to disable Ethernet and short PIN 1-2 of J14
  and J16.
- Add LVDS support. The default display is LVDS0. LVDS1 needs
  further modification on ldb driver

Signed-off-by: Lily Zhang <r58066@freescale.com>

diff --git a/arch/arm/mach-mx5/board-mx53_ard.c b/arch/arm/mach-mx5/board-mx53_ard.c
index 7ef675e50369970f140c9e87deb519239a1707ec..e68f7e08e8efae7ddf7e7c8e6caa6b050dd5f29f 100755 (executable)
--- a/arch/arm/mach-mx5/board-mx53_ard.c
+++ b/arch/arm/mach-mx5/board-mx53_ard.c
@@ -22,12 +22,16 @@
 #include <linux/clk.h>
 #include <linux/delay.h>
 #include <linux/gpio.h>
+#include <linux/mxcfb.h>
+#include <linux/ipu.h>
+#include <linux/pwm_backlight.h>
 #include <linux/smsc911x.h>
 
 #include <mach/common.h>
 #include <mach/hardware.h>
 #include <mach/imx-uart.h>
 #include <mach/iomux-mx53.h>
+#include <mach/ipu-v3.h>
 
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
@@ -126,6 +130,20 @@ static iomux_v3_cfg_t mx53_ard_pads[] = {
 
        /* MAINBRD_SPDIF_IN */
        MX53_PAD_KEY_COL3__SPDIF_IN1,
+       /* LVDS */
+       MX53_PAD_LVDS0_TX3_P__LDB_LVDS0_TX3,
+       MX53_PAD_LVDS0_CLK_P__LDB_LVDS0_CLK,
+       MX53_PAD_LVDS0_TX2_P__LDB_LVDS0_TX2,
+       MX53_PAD_LVDS0_TX1_P__LDB_LVDS0_TX1,
+       MX53_PAD_LVDS0_TX0_P__LDB_LVDS0_TX0,
+       MX53_PAD_LVDS1_TX3_P__LDB_LVDS1_TX3,
+       MX53_PAD_LVDS1_TX2_P__LDB_LVDS1_TX2,
+       MX53_PAD_LVDS1_CLK_P__LDB_LVDS1_CLK,
+       MX53_PAD_LVDS1_TX1_P__LDB_LVDS1_TX1,
+       MX53_PAD_LVDS1_TX0_P__LDB_LVDS1_TX0,
+       /* PWM */
+       MX53_PAD_DISP0_DAT8__PWM1_PWMO,
+       MX53_PAD_DISP0_DAT9__PWM2_PWMO
 };
 
 /* Config CS1 settings for ethernet controller */
@@ -230,6 +248,52 @@ static inline void mx53_ard_init_uart(void)
        imx53_add_imx_uart(2, &mx53_ard_uart_data);
 }
 
+static struct ipuv3_fb_platform_data ard_fb_data[] = {
+       {
+       .disp_dev = "ldb",
+       .interface_pix_fmt = IPU_PIX_FMT_RGB666,
+       .mode_str = "LDB-XGA",
+       .default_bpp = 16,
+       .int_clk = false,
+       },
+       {
+       .disp_dev = "vga",
+       .interface_pix_fmt = IPU_PIX_FMT_GBR24,
+       .mode_str = "VGA-XGA",
+       .default_bpp = 16,
+       .int_clk = false,
+       },
+};
+
+static struct imx_ipuv3_platform_data ipu_data = {
+       .rev = 3,
+};
+
+static struct platform_pwm_backlight_data ard_pwm1_backlight_data = {
+       .pwm_id = 0,
+       .max_brightness = 255,
+       .dft_brightness = 128,
+       .pwm_period_ns = 50000,
+};
+
+static struct platform_pwm_backlight_data ard_pwm2_backlight_data = {
+       .pwm_id = 1,
+       .max_brightness = 255,
+       .dft_brightness = 128,
+       .pwm_period_ns = 50000,
+};
+
+static struct fsl_mxc_tve_platform_data tve_data = {
+       .dac_reg = "LDO4",
+};
+
+static struct fsl_mxc_ldb_platform_data ldb_data = {
+       .ipu_id = 0,
+       .disp_id = 0,
+       .ext_ref = 1,
+       .mode = LDB_SIN0,
+};
+
 static void __init mx53_ard_io_init(void)
 {
        /* MX53 ARD board */
@@ -237,13 +301,48 @@ static void __init mx53_ard_io_init(void)
        gpio_request(ARD_ETHERNET_INT_B, "eth-int-b");
        gpio_direction_input(ARD_ETHERNET_INT_B);
 }
+
+static int __initdata enable_ard_vga = { 0 };
+static int __init ard_vga_setup(char *__unused)
+{
+       enable_ard_vga = 1;
+       printk(KERN_INFO "Enable MX53 ARD VGA\n");
+       return cpu_is_mx53();
+}
+__setup("ard-vga", ard_vga_setup);
+
 static void __init mx53_ard_board_init(void)
 {
+       int i;
        mxc_iomux_v3_setup_multiple_pads(mx53_ard_pads,
                                        ARRAY_SIZE(mx53_ard_pads));
+       /* setup VGA PINs */
+       if (enable_ard_vga) {
+                       iomux_v3_cfg_t vga;
+                       vga = MX53_PAD_EIM_OE__IPU_DI1_PIN7;
+                       mxc_iomux_v3_setup_pad(vga);
+                       vga = MX53_PAD_EIM_RW__IPU_DI1_PIN8;
+                       mxc_iomux_v3_setup_pad(vga);
+       }
+
        mxc_spdif_data.spdif_core_clk = clk_get(NULL, "spdif_xtal_clk");
        clk_put(mxc_spdif_data.spdif_core_clk);
        mx53_ard_init_uart();
+
+       imx53_add_ipuv3(0, &ipu_data);
+       for (i = 0; i < ARRAY_SIZE(ard_fb_data); i++)
+                       imx53_add_ipuv3fb(i, &ard_fb_data[i]);
+
+       imx53_add_vpu();
+       imx53_add_ldb(&ldb_data);
+       imx53_add_tve(&tve_data);
+       imx53_add_v4l2_output(0);
+
+       imx53_add_mxc_pwm(0);
+       imx53_add_mxc_pwm_backlight(0, &ard_pwm1_backlight_data);
+       imx53_add_mxc_pwm(1);
+       imx53_add_mxc_pwm_backlight(1, &ard_pwm2_backlight_data);
+
        imx53_add_srtc();
        imx53_add_imx2_wdt(0, NULL);
        imx53_add_sdhci_esdhc_imx(0, &mx53_ard_sd1_data);