ARM: shmobile: lager: Add Display Unit support

Only the VGA output is currently supported.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

diff --git a/arch/arm/mach-shmobile/board-lager.c b/arch/arm/mach-shmobile/board-lager.c
index ffb6f0a..caec99e 100644 (file)
--- a/arch/arm/mach-shmobile/board-lager.c
+++ b/arch/arm/mach-shmobile/board-lager.c
@@ -28,6 +28,7 @@
 #include <linux/mmc/sh_mmcif.h>
 #include <linux/pinctrl/machine.h>
 #include <linux/platform_data/gpio-rcar.h>
+#include <linux/platform_data/rcar-du.h>
 #include <linux/platform_device.h>
 #include <linux/regulator/fixed.h>
 #include <linux/regulator/machine.h>
@@ -38,6 +39,62 @@
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
 
+/* DU */
+static struct rcar_du_encoder_data lager_du_encoders[] = {
+       {
+               .type = RCAR_DU_ENCODER_VGA,
+               .output = RCAR_DU_OUTPUT_DPAD0,
+       }, {
+               .type = RCAR_DU_ENCODER_NONE,
+               .output = RCAR_DU_OUTPUT_LVDS1,
+               .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 lager_du_pdata __initconst = {
+       .encoders = lager_du_encoders,
+       .num_encoders = ARRAY_SIZE(lager_du_encoders),
+};
+
+static const struct resource du_resources[] __initconst = {
+       DEFINE_RES_MEM(0xfeb00000, 0x70000),
+       DEFINE_RES_MEM_NAMED(0xfeb90000, 0x1c, "lvds.0"),
+       DEFINE_RES_MEM_NAMED(0xfeb94000, 0x1c, "lvds.1"),
+       DEFINE_RES_IRQ(gic_spi(256)),
+       DEFINE_RES_IRQ(gic_spi(268)),
+       DEFINE_RES_IRQ(gic_spi(269)),
+};
+
+static void __init lager_add_du_device(void)
+{
+       struct platform_device_info info = {
+               .name = "rcar-du-r8a7790",
+               .id = -1,
+               .res = du_resources,
+               .num_res = ARRAY_SIZE(du_resources),
+               .data = &du_resources,
+               .size_data = sizeof(du_resources),
+               .dma_mask = DMA_BIT_MASK(32),
+       };
+
+       platform_device_register_full(&info);
+}
+
 /* LEDS */
 static struct gpio_led lager_leds[] = {
        {
@@ -106,6 +163,13 @@ static struct resource ether_resources[] __initdata = {
 };
 
 static const struct pinctrl_map lager_pinctrl_map[] = {
+       /* DU (CN10: ARGB0, CN13: LVDS) */
+       PIN_MAP_MUX_GROUP_DEFAULT("rcar-du-r8a7790", "pfc-r8a7790",
+                                 "du_rgb666", "du"),
+       PIN_MAP_MUX_GROUP_DEFAULT("rcar-du-r8a7790", "pfc-r8a7790",
+                                 "du_sync_1", "du"),
+       PIN_MAP_MUX_GROUP_DEFAULT("rcar-du-r8a7790", "pfc-r8a7790",
+                                 "du_clk_out_0", "du"),
        /* SCIF0 (CN19: DEBUG SERIAL0) */
        PIN_MAP_MUX_GROUP_DEFAULT("sh-sci.6", "pfc-r8a7790",
                                  "scif0_data", "scif0"),
@@ -153,6 +217,8 @@ static void __init lager_add_standard_devices(void)
                                          ether_resources,
                                          ARRAY_SIZE(ether_resources),
                                          &ether_pdata, sizeof(ether_pdata));
+
+       lager_add_du_device();
 }
 
 static const char *lager_boards_compat_dt[] __initdata = {