ARM: shmobile: marzen: Add Display Unit support

[cascardo/linux.git] / arch / arm / mach-shmobile / board-marzen.c

diff --git a/arch/arm/mach-shmobile/board-marzen.c b/arch/arm/mach-shmobile/board-marzen.c
index 3f5044f..434b213 100644 (file)
--- a/arch/arm/mach-shmobile/board-marzen.c
+++ b/arch/arm/mach-shmobile/board-marzen.c
@@ -30,6 +30,7 @@
 #include <linux/dma-mapping.h>
 #include <linux/pinctrl/machine.h>
 #include <linux/platform_data/gpio-rcar.h>
+#include <linux/platform_data/rcar-du.h>
 #include <linux/platform_data/usb-rcar-phy.h>
 #include <linux/regulator/fixed.h>
 #include <linux/regulator/machine.h>
@@ -169,6 +170,63 @@ static struct platform_device hspi_device = {
        .num_resources  = ARRAY_SIZE(hspi_resources),
 };
 
+/*
+ * DU
+ *
+ * The panel only specifies the [hv]display and [hv]total values. The position
+ * and width of the sync pulses don't matter, they're copied from VESA timings.
+ */
+static struct rcar_du_encoder_data du_encoders[] = {
+       {
+               .type = RCAR_DU_ENCODER_VGA,
+               .output = RCAR_DU_OUTPUT_DPAD0,
+       }, {
+               .type = RCAR_DU_ENCODER_LVDS,
+               .output = RCAR_DU_OUTPUT_DPAD1,
+               .connector.lvds.panel = {
+                       .width_mm = 210,
+                       .height_mm = 158,
+                       .mode = {
+                               .clock = 65000,
+                               .hdisplay = 1024,
+                               .hsync_start = 1048,
+                               .hsync_end = 1184,
+                               .htotal = 1344,
+                               .vdisplay = 768,
+                               .vsync_start = 771,
+                               .vsync_end = 777,
+                               .vtotal = 806,
+                               .flags = 0,
+                       },
+               },
+       },
+};
+
+static const struct rcar_du_platform_data du_pdata __initconst = {
+       .encoders = du_encoders,
+       .num_encoders = ARRAY_SIZE(du_encoders),
+};
+
+static const struct resource du_resources[] __initconst = {
+       DEFINE_RES_MEM(0xfff80000, 0x40000),
+       DEFINE_RES_IRQ(gic_iid(0x3f)),
+};
+
+static void __init marzen_add_du_device(void)
+{
+       struct platform_device_info info = {
+               .name = "rcar-du-r8a7779",
+               .id = -1,
+               .res = du_resources,
+               .num_res = ARRAY_SIZE(du_resources),
+               .data = &du_pdata,
+               .size_data = sizeof(du_pdata),
+               .dma_mask = DMA_BIT_MASK(32),
+       };
+
+       platform_device_register_full(&info);
+}
+
 /* LEDS */
 static struct gpio_led marzen_leds[] = {
        {
@@ -237,6 +295,19 @@ static struct platform_device *marzen_devices[] __initdata = {
 };
 
 static const struct pinctrl_map marzen_pinctrl_map[] = {
+       /* DU (CN10: ARGB0, CN13: LVDS) */
+       PIN_MAP_MUX_GROUP_DEFAULT("rcar-du-r8a7779", "pfc-r8a7779",
+                                 "du0_rgb888", "du0"),
+       PIN_MAP_MUX_GROUP_DEFAULT("rcar-du-r8a7779", "pfc-r8a7779",
+                                 "du0_sync_1", "du0"),
+       PIN_MAP_MUX_GROUP_DEFAULT("rcar-du-r8a7779", "pfc-r8a7779",
+                                 "du0_clk_out_0", "du0"),
+       PIN_MAP_MUX_GROUP_DEFAULT("rcar-du-r8a7779", "pfc-r8a7779",
+                                 "du1_rgb666", "du1"),
+       PIN_MAP_MUX_GROUP_DEFAULT("rcar-du-r8a7779", "pfc-r8a7779",
+                                 "du1_sync_1", "du1"),
+       PIN_MAP_MUX_GROUP_DEFAULT("rcar-du-r8a7779", "pfc-r8a7779",
+                                 "du1_clk_out", "du1"),
        /* HSPI0 */
        PIN_MAP_MUX_GROUP_DEFAULT("sh-hspi.0", "pfc-r8a7779",
                                  "hspi0", "hspi0"),
@@ -297,6 +368,7 @@ static void __init marzen_init(void)
        r8a7779_add_vin_device(1, &vin_platform_data);
        r8a7779_add_vin_device(3, &vin_platform_data);
        platform_add_devices(marzen_devices, ARRAY_SIZE(marzen_devices));
+       marzen_add_du_device();
 }
 
 static const char *marzen_boards_compat_dt[] __initdata = {