1 files changed, 57 insertions, 3 deletions

diff --git a/arch/arm/mach-omap2/display.c b/arch/arm/mach-omap2/display.c
index 8ad0a2f0367d..4036821a01f3 100644
--- a/arch/arm/mach-omap2/display.c
+++ b/arch/arm/mach-omap2/display.c
@@ -27,6 +27,8 @@
 #include <plat/omap_device.h>
 #include <plat/omap-pm.h>
 
+#include "control.h"
+
 static struct platform_device omap_display_device = {
 	.name          = "omapdss",
 	.id            = -1,
@@ -53,7 +55,7 @@ static const struct omap_dss_hwmod_data omap3_dss_hwmod_data[] __initdata = {
 	{ "dss_dispc", "omapdss_dispc", -1 },
 	{ "dss_rfbi", "omapdss_rfbi", -1 },
 	{ "dss_venc", "omapdss_venc", -1 },
-	{ "dss_dsi1", "omapdss_dsi1", -1 },
+	{ "dss_dsi1", "omapdss_dsi", 0 },
 };
 
 static const struct omap_dss_hwmod_data omap4_dss_hwmod_data[] __initdata = {
@@ -61,11 +63,58 @@ static const struct omap_dss_hwmod_data omap4_dss_hwmod_data[] __initdata = {
 	{ "dss_dispc", "omapdss_dispc", -1 },
 	{ "dss_rfbi", "omapdss_rfbi", -1 },
 	{ "dss_venc", "omapdss_venc", -1 },
-	{ "dss_dsi1", "omapdss_dsi1", -1 },
-	{ "dss_dsi2", "omapdss_dsi2", -1 },
+	{ "dss_dsi1", "omapdss_dsi", 0 },
+	{ "dss_dsi2", "omapdss_dsi", 1 },
 	{ "dss_hdmi", "omapdss_hdmi", -1 },
 };
 
+static int omap4_dsi_mux_pads(int dsi_id, unsigned lanes)
+{
+	u32 enable_mask, enable_shift;
+	u32 pipd_mask, pipd_shift;
+	u32 reg;
+
+	if (dsi_id == 0) {
+		enable_mask = OMAP4_DSI1_LANEENABLE_MASK;
+		enable_shift = OMAP4_DSI1_LANEENABLE_SHIFT;
+		pipd_mask = OMAP4_DSI1_PIPD_MASK;
+		pipd_shift = OMAP4_DSI1_PIPD_SHIFT;
+	} else if (dsi_id == 1) {
+		enable_mask = OMAP4_DSI2_LANEENABLE_MASK;
+		enable_shift = OMAP4_DSI2_LANEENABLE_SHIFT;
+		pipd_mask = OMAP4_DSI2_PIPD_MASK;
+		pipd_shift = OMAP4_DSI2_PIPD_SHIFT;
+	} else {
+		return -ENODEV;
+	}
+
+	reg = omap4_ctrl_pad_readl(OMAP4_CTRL_MODULE_PAD_CORE_CONTROL_DSIPHY);
+
+	reg &= ~enable_mask;
+	reg &= ~pipd_mask;
+
+	reg |= (lanes << enable_shift) & enable_mask;
+	reg |= (lanes << pipd_shift) & pipd_mask;
+
+	omap4_ctrl_pad_writel(reg, OMAP4_CTRL_MODULE_PAD_CORE_CONTROL_DSIPHY);
+
+	return 0;
+}
+
+static int omap_dsi_enable_pads(int dsi_id, unsigned lane_mask)
+{
+	if (cpu_is_omap44xx())
+		return omap4_dsi_mux_pads(dsi_id, lane_mask);
+
+	return 0;
+}
+
+static void omap_dsi_disable_pads(int dsi_id, unsigned lane_mask)
+{
+	if (cpu_is_omap44xx())
+		omap4_dsi_mux_pads(dsi_id, 0);
+}
+
 int __init omap_display_init(struct omap_dss_board_info *board_data)
 {
 	int r = 0;
@@ -88,6 +137,11 @@ int __init omap_display_init(struct omap_dss_board_info *board_data)
 		oh_count = ARRAY_SIZE(omap4_dss_hwmod_data);
 	}
 
+	if (board_data->dsi_enable_pads == NULL)
+		board_data->dsi_enable_pads = omap_dsi_enable_pads;
+	if (board_data->dsi_disable_pads == NULL)
+		board_data->dsi_disable_pads = omap_dsi_disable_pads;
+
 	pdata.board_data = board_data;
 	pdata.board_data->get_context_loss_count =
 		omap_pm_get_dev_context_loss_count;