ARM: mxs/mx23evk: add framebuffer device

Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

2 files changed, 80 insertions, 0 deletions

diff --git a/arch/arm/mach-mxs/Kconfig b/arch/arm/mach-mxs/Kconfig
index 4f0b67345179..989c08c6dd93 100644
--- a/arch/arm/mach-mxs/Kconfig
+++ b/arch/arm/mach-mxs/Kconfig
@@ -22,6 +22,7 @@ config MACH_MX23EVK
         select SOC_IMX23
         select MXS_HAVE_AMBA_DUART
         select MXS_HAVE_PLATFORM_AUART
+        select MXS_HAVE_PLATFORM_MXSFB
         default y
         help
           Include support for MX23EVK platform. This includes specific
diff --git a/arch/arm/mach-mxs/mach-mx23evk.c b/arch/arm/mach-mxs/mach-mx23evk.c
index d7240547f0db..a66994f0518f 100644
--- a/arch/arm/mach-mxs/mach-mx23evk.c
+++ b/arch/arm/mach-mxs/mach-mx23evk.c
@@ -26,6 +26,9 @@
 
 #include "devices-mx23.h"
 
+#define MX23EVK_LCD_ENABLE      MXS_GPIO_NR(1, 18)
+#define MX23EVK_BL_ENABLE       MXS_GPIO_NR(1, 28)
+
 static const iomux_cfg_t mx23evk_pads[] __initconst = {
         /* duart */
         MX23_PAD_PWM0__DUART_RX | MXS_PAD_CTRL,
@@ -36,14 +39,90 @@ static const iomux_cfg_t mx23evk_pads[] __initconst = {
         MX23_PAD_AUART1_TX__AUART1_TX | MXS_PAD_CTRL,
         MX23_PAD_AUART1_CTS__AUART1_CTS | MXS_PAD_CTRL,
         MX23_PAD_AUART1_RTS__AUART1_RTS | MXS_PAD_CTRL,
+
+        /* mxsfb (lcdif) */
+        MX23_PAD_LCD_D00__LCD_D00 | MXS_PAD_CTRL,
+        MX23_PAD_LCD_D01__LCD_D01 | MXS_PAD_CTRL,
+        MX23_PAD_LCD_D02__LCD_D02 | MXS_PAD_CTRL,
+        MX23_PAD_LCD_D03__LCD_D03 | MXS_PAD_CTRL,
+        MX23_PAD_LCD_D04__LCD_D04 | MXS_PAD_CTRL,
+        MX23_PAD_LCD_D05__LCD_D05 | MXS_PAD_CTRL,
+        MX23_PAD_LCD_D06__LCD_D06 | MXS_PAD_CTRL,
+        MX23_PAD_LCD_D07__LCD_D07 | MXS_PAD_CTRL,
+        MX23_PAD_LCD_D08__LCD_D08 | MXS_PAD_CTRL,
+        MX23_PAD_LCD_D09__LCD_D09 | MXS_PAD_CTRL,
+        MX23_PAD_LCD_D10__LCD_D10 | MXS_PAD_CTRL,
+        MX23_PAD_LCD_D11__LCD_D11 | MXS_PAD_CTRL,
+        MX23_PAD_LCD_D12__LCD_D12 | MXS_PAD_CTRL,
+        MX23_PAD_LCD_D13__LCD_D13 | MXS_PAD_CTRL,
+        MX23_PAD_LCD_D14__LCD_D14 | MXS_PAD_CTRL,
+        MX23_PAD_LCD_D15__LCD_D15 | MXS_PAD_CTRL,
+        MX23_PAD_LCD_D16__LCD_D16 | MXS_PAD_CTRL,
+        MX23_PAD_LCD_D17__LCD_D17 | MXS_PAD_CTRL,
+        MX23_PAD_GPMI_D08__LCD_D18 | MXS_PAD_CTRL,
+        MX23_PAD_GPMI_D09__LCD_D19 | MXS_PAD_CTRL,
+        MX23_PAD_GPMI_D10__LCD_D20 | MXS_PAD_CTRL,
+        MX23_PAD_GPMI_D11__LCD_D21 | MXS_PAD_CTRL,
+        MX23_PAD_GPMI_D12__LCD_D22 | MXS_PAD_CTRL,
+        MX23_PAD_GPMI_D13__LCD_D23 | MXS_PAD_CTRL,
+        MX23_PAD_LCD_VSYNC__LCD_VSYNC | MXS_PAD_CTRL,
+        MX23_PAD_LCD_HSYNC__LCD_HSYNC | MXS_PAD_CTRL,
+        MX23_PAD_LCD_DOTCK__LCD_DOTCK | MXS_PAD_CTRL,
+        MX23_PAD_LCD_ENABLE__LCD_ENABLE | MXS_PAD_CTRL,
+        /* LCD panel enable */
+        MX23_PAD_LCD_RESET__GPIO_1_18 | MXS_PAD_CTRL,
+        /* backlight control */
+        MX23_PAD_PWM2__GPIO_1_28 | MXS_PAD_CTRL,
+};
+
+/* mxsfb (lcdif) */
+static struct fb_videomode mx23evk_video_modes[] = {
+        {
+                .name           = "Samsung-LMS430HF02",
+                .refresh        = 60,
+                .xres           = 480,
+                .yres           = 272,
+                .pixclock       = 108096, /* picosecond (9.2 MHz) */
+                .left_margin    = 15,
+                .right_margin   = 8,
+                .upper_margin   = 12,
+                .lower_margin   = 4,
+                .hsync_len      = 1,
+                .vsync_len      = 1,
+                .sync           = FB_SYNC_DATA_ENABLE_HIGH_ACT |
+                                  FB_SYNC_DOTCLK_FAILING_ACT,
+        },
+};
+
+static const struct mxsfb_platform_data mx23evk_mxsfb_pdata __initconst = {
+        .mode_list      = mx23evk_video_modes,
+        .mode_count     = ARRAY_SIZE(mx23evk_video_modes),
+        .default_bpp    = 32,
+        .ld_intf_width  = STMLCDIF_24BIT,
 };
 
 static void __init mx23evk_init(void)
 {
+        int ret;
+
         mxs_iomux_setup_multiple_pads(mx23evk_pads, ARRAY_SIZE(mx23evk_pads));
 
         mx23_add_duart();
         mx23_add_auart0();
+
+        ret = gpio_request_one(MX23EVK_LCD_ENABLE, GPIOF_DIR_OUT, "lcd-enable");
+        if (ret)
+                pr_warn("failed to request gpio lcd-enable: %d\n", ret);
+        else
+                gpio_set_value(MX23EVK_LCD_ENABLE, 1);
+
+        ret = gpio_request_one(MX23EVK_BL_ENABLE, GPIOF_DIR_OUT, "bl-enable");
+        if (ret)
+                pr_warn("failed to request gpio bl-enable: %d\n", ret);
+        else
+                gpio_set_value(MX23EVK_BL_ENABLE, 1);
+
+        mx23_add_mxsfb(&mx23evk_mxsfb_pdata);
 }
 
 static void __init mx23evk_timer_init(void)