fbdev: Add the lacking FB_SYNC_* for matching the DISPLAY_FLAGS_*

index 6103fa6..29a9ed0 100644
@@ -1402,6 +1402,10 @@ int fb_videomode_from_videomode(const struct videomode *vm,
 		fbmode->sync |= FB_SYNC_HOR_HIGH_ACT;
 	if (vm->flags & DISPLAY_FLAGS_VSYNC_HIGH)
 		fbmode->sync |= FB_SYNC_VERT_HIGH_ACT;
+	if (vm->flags & DISPLAY_FLAGS_DE_HIGH)
+		fbmode->sync |= FB_SYNC_DE_HIGH_ACT;
+	if (vm->flags & DISPLAY_FLAGS_PIXDATA_POSEDGE)
+		fbmode->sync |= FB_SYNC_PIXDAT_HIGH_ACT;
 	if (vm->flags & DISPLAY_FLAGS_INTERLACED)
 		fbmode->vmode |= FB_VMODE_INTERLACED;
 	if (vm->flags & DISPLAY_FLAGS_DOUBLESCAN)

index ffac70a..cf2ad5d 100644
@@ -45,6 +45,9 @@ struct device_node;
 #define FB_SIGNAL_SYNC_ON_GREEN	8
 #define FB_SIGNAL_SERRATION_ON	16
 
+#define FB_SYNC_DE_HIGH_ACT     64      /* data enable active high flag */
+#define FB_SYNC_PIXDAT_HIGH_ACT 128     /* drive data on positive edge */
+
 #define FB_MISC_PRIM_COLOR	1
 #define FB_MISC_1ST_DETAIL	2	/* First Detailed Timing is preferred */
 struct fb_chroma {

201 lines not on this page · raw message

index 7620e4f..8cf9c6f 100644
@@ -27,6 +27,7 @@
 #include <linux/clk.h>
 #include <linux/mutex.h>
 #include <linux/dma/ipu-dma.h>
+#include <linux/regulator/consumer.h>
 
 #include <linux/platform_data/dma-imx.h>
 #include <linux/platform_data/video-mx3fb.h>

@@ -269,6 +270,7 @@ struct mx3fb_info {
 	struct dma_async_tx_descriptor	*txd;
 	dma_cookie_t			cookie;
 	struct scatterlist		sg[2];
+	struct regulator		*reg_lcd;
 
 	struct fb_var_screeninfo	cur_var; /* current var info */
 };

@@ -1005,6 +1007,7 @@ static void __blank(int blank, struct fb_info *fbi)
 	struct mx3fb_info *mx3_fbi = fbi->par;
 	struct mx3fb_data *mx3fb = mx3_fbi->mx3fb;
 	int was_blank = mx3_fbi->blank;
+	int ret;
 
 	mx3_fbi->blank = blank;
 

@@ -1023,6 +1026,15 @@ static void __blank(int blank, struct fb_info *fbi)
 	case FB_BLANK_HSYNC_SUSPEND:
 	case FB_BLANK_NORMAL:
 		sdc_set_brightness(mx3fb, 0);
+		if (mx3_fbi->reg_lcd) {
+			if (regulator_is_enabled(mx3_fbi->reg_lcd)) {
+				ret = regulator_disable(mx3_fbi->reg_lcd);
+				if (ret)
+					dev_warn(fbi->device,
+						 "lcd regulator disable failed with error: %d\n",
+						 ret);
+			}
+		}
 		memset((char *)fbi->screen_base, 0, fbi->fix.smem_len);
 		/* Give LCD time to update - enough for 50 and 60 Hz */
 		msleep(25);

@@ -1030,6 +1042,15 @@ static void __blank(int blank, struct fb_info *fbi)
 		break;
 	case FB_BLANK_UNBLANK:
 		sdc_enable_channel(mx3_fbi);
+		if (mx3_fbi->reg_lcd) {
+			if (!regulator_is_enabled(mx3_fbi->reg_lcd)) {
+				ret = regulator_enable(mx3_fbi->reg_lcd);
+				if (ret)
+					dev_warn(fbi->device,
+						 "lcd regulator enable failed with error: %d\n",
+						 ret);
+			}
+		}
 		sdc_set_brightness(mx3fb, mx3fb->backlight_level);
 		break;
 	}

@@ -1206,6 +1227,7 @@ static int mx3fb_suspend(struct platform_device *pdev, pm_message_t state)
 {
 	struct mx3fb_data *mx3fb = platform_get_drvdata(pdev);
 	struct mx3fb_info *mx3_fbi = mx3fb->fbi->par;
+	int ret;
 
 	console_lock();
 	fb_set_suspend(mx3fb->fbi, 1);

@@ -1214,7 +1236,15 @@ static int mx3fb_suspend(struct platform_device *pdev, pm_message_t state)
 	if (mx3_fbi->blank == FB_BLANK_UNBLANK) {
 		sdc_disable_channel(mx3_fbi);
 		sdc_set_brightness(mx3fb, 0);
-
+		if (mx3_fbi->reg_lcd) {
+			if (regulator_is_enabled(mx3_fbi->reg_lcd)) {
+				ret = regulator_disable(mx3_fbi->reg_lcd);
+				if (ret)
+					dev_warn(&pdev->dev,
+						 "lcd regulator disable failed with error: %d\n",
+						 ret);
+			}
+		}
 	}
 	return 0;
 }

@@ -1226,10 +1256,20 @@ static int mx3fb_resume(struct platform_device *pdev)
 {
 	struct mx3fb_data *mx3fb = platform_get_drvdata(pdev);
 	struct mx3fb_info *mx3_fbi = mx3fb->fbi->par;
+	int ret;
 
 	if (mx3_fbi->blank == FB_BLANK_UNBLANK) {
 		sdc_enable_channel(mx3_fbi);
 		sdc_set_brightness(mx3fb, mx3fb->backlight_level);
+		if (mx3_fbi->reg_lcd) {
+			if (!regulator_is_enabled(mx3_fbi->reg_lcd)) {
+				ret = regulator_enable(mx3_fbi->reg_lcd);
+				if (ret)
+					dev_warn(&pdev->dev,
+						 "lcd regulator enable failed with error: %d\n",
+						 ret);
+			}
+		}
 	}
 
 	console_lock();

@@ -1373,6 +1413,7 @@ static int init_fb_chan(struct mx3fb_data *mx3fb, struct idmac_channel *ichan)
 	struct mx3fb_platform_data *mx3fb_pdata = dev->platform_data;
 	struct device_node *np = dev->of_node;
 	const char *name;
+	const char *regulator_name;
 	const char *ipu_disp_format;
 	unsigned int irq;
 	struct fb_info *fbi;

@@ -1389,6 +1430,9 @@ static int init_fb_chan(struct mx3fb_data *mx3fb, struct idmac_channel *ichan)
 			return -EINVAL;
 		}
 
+		of_property_read_string(display_np, "regulator-name",
+					&regulator_name);
+
 		of_property_read_string(display_np, "interface-pix-fmt",
 					&ipu_disp_format);
 		if (!ipu_disp_format) {

@@ -1503,6 +1547,25 @@ static int init_fb_chan(struct mx3fb_data *mx3fb, struct idmac_channel *ichan)
 	if (ret < 0)
 		goto erfb;
 
+	/* In dt mode,
+	 * using devm_regulator_get would require that the proprety referencing
+	 * the regulator phandle has to be inside the mx3fb node.
+	 */
+	if (np) {
+		if (regulator_name)
+			mx3fbi->reg_lcd = regulator_get(NULL, regulator_name);
+	} else {
+		mx3fbi->reg_lcd = devm_regulator_get(dev, "lcd");
+	}
+
+	if (IS_ERR(mx3fbi->reg_lcd)) {
+		dev_warn(mx3fb->dev, "Operating without regulator \"lcd\"\n");
+		mx3fbi->reg_lcd = NULL;
+	} else {
+		dev_info(mx3fb->dev, "Using \"%s\" Regulator\n",
+			 regulator_name);
+	}
+
 	return 0;
 
 erfb:

@@ -1557,6 +1620,7 @@ static int mx3fb_probe(struct platform_device *pdev)
 	struct dma_chan *chan;
 	struct dma_chan_request rq;
 	struct device_node *np = dev->of_node;
+	struct mx3fb_info *mx3_fbi;
 
 	/*
 	 * Display Interface (DI) and Synchronous Display Controller (SDC)

@@ -1621,6 +1685,11 @@ ersdc0:
 	dmaengine_put();
 	iounmap(mx3fb->reg_base);
 eremap:
+	if (mx3fb->fbi) {
+		mx3_fbi = mx3fb->fbi->par;
+		if (mx3_fbi->reg_lcd)
+			regulator_put(mx3_fbi->reg_lcd);
+	}
 	kfree(mx3fb);
 	dev_err(dev, "mx3fb: failed to register fb\n");
 	return ret;

index e3def45..6438f292 100644
@@ -16,14 +16,21 @@
 #include <asm/mach/time.h>
 #include <asm/hardware/cache-l2x0.h>
 #include "common.h"
+#include "devices-imx35.h"
 #include "mx35.h"
 
 static void __init imx35_dt_init(void)
 {
+	struct device_node *np;
 	mxc_arch_reset_init_dt();
 
 	of_platform_populate(NULL, of_default_bus_match_table,
 			     NULL, NULL);
+
+	/* We don't want to export the IPU as DT bindings. */
+	np = of_find_compatible_node(NULL, NULL, "fsl,imx35-ipu");
+	if (of_device_is_available(np))
+		imx35_add_ipu_core();
 }
 
 static void __init imx35_timer_init(void)