- mxsfb DM_VIDEO conversion

- splash fix for DM_VIDEO configurations
 - meson HDMI fix for boards without hdmi-supply regulator
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Merge tag 'video-updates-for-2019.07-rc3' of git://git.denx.de/u-boot-video

- mxsfb DM_VIDEO conversion
- splash fix for DM_VIDEO configurations
- meson HDMI fix for boards without hdmi-supply regulator

arch/arm/dts/imx7-colibri-emmc.dts

@@ -11,8 +11,10 @@
 	compatible = "toradex,imx7d-colibri-emmc", "fsl,imx7d";
 
 	aliases {
+		u-boot,dm-pre-reloc;
 		mmc0 = &usdhc3;
 		mmc1 = &usdhc1;
+		display1 = &lcdif;
 	};
 
 	chosen {

arch/arm/dts/imx7-colibri.dtsi

@@ -111,3 +111,31 @@
 		>;
 	};
 };
+
+&lcdif {
+	u-boot,dm-pre-reloc;
+	status = "okay";
+
+	display-timings {
+		native-mode = <&timing_vga>;
+
+		/* Standard VGA timing */
+		timing_vga: 640x480 {
+			u-boot,dm-pre-reloc;
+			clock-frequency = <25175000>;
+			hactive = <640>;
+			vactive = <480>;
+			hback-porch = <48>;
+			hfront-porch = <16>;
+			vback-porch = <33>;
+			vfront-porch = <10>;
+			hsync-len = <96>;
+			vsync-len = <2>;
+
+			de-active = <1>;
+			hsync-active = <0>;
+			vsync-active = <0>;
+			pixelclk-active = <0>;
+		};
+	};
+};

arch/arm/mach-imx/cpu.c

@@ -298,7 +298,7 @@ void arch_preboot_os(void)
 	/* disable video before launching O/S */
 	ipuv3_fb_shutdown();
 #endif
-#if defined(CONFIG_VIDEO_MXS)
+#if defined(CONFIG_VIDEO_MXS) && !defined(CONFIG_DM_VIDEO)
 	lcdif_power_down();
 #endif
 }

arch/arm/mach-imx/mx7/soc.c

@@ -369,7 +369,7 @@ void s_init(void)
 void reset_misc(void)
 {
 #ifndef CONFIG_SPL_BUILD
-#ifdef CONFIG_VIDEO_MXS
+#if defined(CONFIG_VIDEO_MXS) && !defined(CONFIG_DM_VIDEO)
 	lcdif_power_down();
 #endif
 #endif

common/lcd.c

@@ -171,8 +171,7 @@ int drv_lcd_init(void)
 void lcd_clear(void)
 {
 	int bg_color;
-	char *s;
-	ulong addr;
+	__maybe_unused ulong addr;
 	static int do_splash = 1;
 #if LCD_BPP == LCD_COLOR8
 	/* Setting the palette */
@@ -222,14 +221,10 @@ void lcd_clear(void)
 	/* Paint the logo and retrieve LCD base address */
 	debug("[LCD] Drawing the logo...\n");
 	if (do_splash) {
-		s = env_get("splashimage");
-		if (s) {
+		if (splash_display() == 0) {
 			do_splash = 0;
-			addr = simple_strtoul(s, NULL, 16);
-			if (lcd_splash(addr) == 0) {
-				lcd_sync();
-				return;
-			}
+			lcd_sync();
+			return;
 		}
 	}
 

common/splash.c

@@ -80,11 +80,23 @@ void splash_get_pos(int *x, int *y)
 }
 #endif /* CONFIG_SPLASH_SCREEN_ALIGN */
 
-#if defined(CONFIG_SPLASH_SCREEN) && defined(CONFIG_LCD)
-int lcd_splash(ulong addr)
+/*
+ * Common function to show a splash image if env("splashimage") is set.
+ * Is used for both dm_video and lcd video stacks. For additional
+ * details please refer to doc/README.splashprepare.
+ */
+#if defined(CONFIG_SPLASH_SCREEN) && defined(CONFIG_CMD_BMP)
+int splash_display(void)
 {
+	ulong addr;
+	char *s;
 	int x = 0, y = 0, ret;
 
+	s = env_get("splashimage");
+	if (!s)
+		return -EINVAL;
+
+	addr = simple_strtoul(s, NULL, 16);
 	ret = splash_screen_prepare();
 	if (ret)
 		return ret;

common/stdio.c

@@ -16,6 +16,7 @@
 #include <malloc.h>
 #include <stdio_dev.h>
 #include <serial.h>
+#include <splash.h>
 
 #if defined(CONFIG_SYS_I2C)
 #include <i2c.h>
@@ -366,6 +367,9 @@ int stdio_add_devices(void)
 	if (ret)
 		printf("%s: Video device failed (ret=%d)\n", __func__, ret);
 #endif /* !CONFIG_SYS_CONSOLE_IS_IN_ENV */
+#if defined(CONFIG_SPLASH_SCREEN) && defined(CONFIG_CMD_BMP)
+	splash_display();
+#endif /* CONFIG_SPLASH_SCREEN && CONFIG_CMD_BMP */
 #else
 # if defined(CONFIG_LCD)
 	drv_lcd_init ();

configs/colibri_imx6_defconfig

@@ -85,3 +85,4 @@ CONFIG_DM_VIDEO=y
 CONFIG_VIDEO_IPUV3=y
 CONFIG_FAT_WRITE=y
 CONFIG_OF_LIBFDT_OVERLAY=y
+CONFIG_SYS_WHITE_ON_BLACK=y

configs/colibri_imx7_emmc_defconfig

@@ -63,6 +63,6 @@ CONFIG_USB_GADGET_VENDOR_NUM=0x1b67
 CONFIG_USB_GADGET_PRODUCT_NUM=0x4000
 CONFIG_CI_UDC=y
 CONFIG_USB_GADGET_DOWNLOAD=y
-CONFIG_VIDEO=y
+CONFIG_DM_VIDEO=y
 CONFIG_FAT_WRITE=y
 CONFIG_OF_LIBFDT_OVERLAY=y

configs/colibri_t20_defconfig

@@ -64,3 +64,4 @@ CONFIG_DM_VIDEO=y
 CONFIG_VIDEO_TEGRA20=y
 CONFIG_CONSOLE_SCROLL_LINES=10
 CONFIG_OF_LIBFDT_OVERLAY=y
+CONFIG_SYS_WHITE_ON_BLACK=y

drivers/video/meson/meson_dw_hdmi.c

@@ -361,13 +361,19 @@ static int meson_dw_hdmi_probe(struct udevice *dev)
 	priv->hdmi.i2c_clk_high = 0x67;
 	priv->hdmi.i2c_clk_low = 0x78;
 
+#if CONFIG_IS_ENABLED(DM_REGULATOR)
 	ret = device_get_supply_regulator(dev, "hdmi-supply", &supply);
-	if (ret)
+	if (ret && ret != -ENOENT) {
+		pr_err("Failed to get HDMI regulator\n");
 		return ret;
+	}
 
-	ret = regulator_set_enable(supply, true);
-	if (ret)
-		return ret;
+	if (!ret) {
+		ret = regulator_set_enable(supply, true);
+		if (ret)
+			return ret;
+	}
+#endif
 
 	ret = reset_get_bulk(dev, &resets);
 	if (ret)

drivers/video/mxsfb.c

@@ -5,22 +5,26 @@
  * Copyright (C) 2011-2013 Marek Vasut <marex@denx.de>
  */
 #include <common.h>
+#include <dm.h>
+#include <linux/errno.h>
 #include <malloc.h>
+#include <video.h>
 #include <video_fb.h>
 
-#include <asm/arch/imx-regs.h>
 #include <asm/arch/clock.h>
+#include <asm/arch/imx-regs.h>
 #include <asm/arch/sys_proto.h>
-#include <linux/errno.h>
-#include <asm/io.h>
-
 #include <asm/mach-imx/dma.h>
+#include <asm/io.h>
 
 #include "videomodes.h"
 
 #define	PS2KHZ(ps)	(1000000000UL / (ps))
+#define HZ2PS(hz)	(1000000000UL / ((hz) / 1000))
+
+#define BITS_PP		18
+#define BYTES_PP	4
 
-static GraphicDevice panel;
 struct mxs_dma_desc desc;
 
 /**
@@ -46,8 +50,7 @@ __weak void mxsfb_system_setup(void)
  * 	 le:89,ri:164,up:23,lo:10,hs:10,vs:10,sync:0,vmode:0
  */
 
-static void mxs_lcd_init(GraphicDevice *panel,
-			struct ctfb_res_modes *mode, int bpp)
+static void mxs_lcd_init(u32 fb_addr, struct ctfb_res_modes *mode, int bpp)
 {
 	struct mxs_lcdif_regs *regs = (struct mxs_lcdif_regs *)MXS_LCDIF_BASE;
 	uint32_t word_len = 0, bus_width = 0;
@@ -112,8 +115,8 @@ static void mxs_lcd_init(GraphicDevice *panel,
 	writel((0 << LCDIF_VDCTRL4_DOTCLK_DLY_SEL_OFFSET) | mode->xres,
 		&regs->hw_lcdif_vdctrl4);
 
-	writel(panel->frameAdrs, &regs->hw_lcdif_cur_buf);
-	writel(panel->frameAdrs, &regs->hw_lcdif_next_buf);
+	writel(fb_addr, &regs->hw_lcdif_cur_buf);
+	writel(fb_addr, &regs->hw_lcdif_next_buf);
 
 	/* Flush FIFO first */
 	writel(LCDIF_CTRL1_FIFO_CLEAR, &regs->hw_lcdif_ctrl1_set);
@@ -130,16 +133,47 @@ static void mxs_lcd_init(GraphicDevice *panel,
 	writel(LCDIF_CTRL_RUN, &regs->hw_lcdif_ctrl_set);
 }
 
-void lcdif_power_down(void)
+static int mxs_probe_common(struct ctfb_res_modes *mode, int bpp, u32 fb)
+{
+	/* Start framebuffer */
+	mxs_lcd_init(fb, mode, bpp);
+
+#ifdef CONFIG_VIDEO_MXS_MODE_SYSTEM
+	/*
+	 * If the LCD runs in system mode, the LCD refresh has to be triggered
+	 * manually by setting the RUN bit in HW_LCDIF_CTRL register. To avoid
+	 * having to set this bit manually after every single change in the
+	 * framebuffer memory, we set up specially crafted circular DMA, which
+	 * sets the RUN bit, then waits until it gets cleared and repeats this
+	 * infinitelly. This way, we get smooth continuous updates of the LCD.
+	 */
+	struct mxs_lcdif_regs *regs = (struct mxs_lcdif_regs *)MXS_LCDIF_BASE;
+
+	memset(&desc, 0, sizeof(struct mxs_dma_desc));
+	desc.address = (dma_addr_t)&desc;
+	desc.cmd.data = MXS_DMA_DESC_COMMAND_NO_DMAXFER | MXS_DMA_DESC_CHAIN |
+			MXS_DMA_DESC_WAIT4END |
+			(1 << MXS_DMA_DESC_PIO_WORDS_OFFSET);
+	desc.cmd.pio_words[0] = readl(&regs->hw_lcdif_ctrl) | LCDIF_CTRL_RUN;
+	desc.cmd.next = (uint32_t)&desc.cmd;
+
+	/* Execute the DMA chain. */
+	mxs_dma_circ_start(MXS_DMA_CHANNEL_AHB_APBH_LCDIF, &desc);
+#endif
+
+	return 0;
+}
+
+static int mxs_remove_common(u32 fb)
 {
 	struct mxs_lcdif_regs *regs = (struct mxs_lcdif_regs *)MXS_LCDIF_BASE;
 	int timeout = 1000000;
 
-	if (!panel.frameAdrs)
-		return;
+	if (!fb)
+		return -EINVAL;
 
-	writel(panel.frameAdrs, &regs->hw_lcdif_cur_buf_reg);
-	writel(panel.frameAdrs, &regs->hw_lcdif_next_buf_reg);
+	writel(fb, &regs->hw_lcdif_cur_buf_reg);
+	writel(fb, &regs->hw_lcdif_next_buf_reg);
 	writel(LCDIF_CTRL1_VSYNC_EDGE_IRQ, &regs->hw_lcdif_ctrl1_clr);
 	while (--timeout) {
 		if (readl(&regs->hw_lcdif_ctrl1_reg) &
@@ -148,13 +182,25 @@ void lcdif_power_down(void)
 		udelay(1);
 	}
 	mxs_reset_block((struct mxs_register_32 *)&regs->hw_lcdif_ctrl_reg);
+
+	return 0;
+}
+
+#ifndef CONFIG_DM_VIDEO
+
+static GraphicDevice panel;
+
+void lcdif_power_down(void)
+{
+	mxs_remove_common(panel.frameAdrs);
 }
 
 void *video_hw_init(void)
 {
 	int bpp = -1;
+	int ret = 0;
 	char *penv;
-	void *fb;
+	void *fb = NULL;
 	struct ctfb_res_modes mode;
 
 	puts("Video: ");
@@ -169,8 +215,7 @@ void *video_hw_init(void)
 	bpp = video_get_params(&mode, penv);
 
 	/* fill in Graphic device struct */
-	sprintf(panel.modeIdent, "%dx%dx%d",
-			mode.xres, mode.yres, bpp);
+	sprintf(panel.modeIdent, "%dx%dx%d", mode.xres, mode.yres, bpp);
 
 	panel.winSizeX = mode.xres;
 	panel.winSizeY = mode.yres;
@@ -213,31 +258,125 @@ void *video_hw_init(void)
 
 	printf("%s\n", panel.modeIdent);
 
-	/* Start framebuffer */
-	mxs_lcd_init(&panel, &mode, bpp);
-
-#ifdef CONFIG_VIDEO_MXS_MODE_SYSTEM
-	/*
-	 * If the LCD runs in system mode, the LCD refresh has to be triggered
-	 * manually by setting the RUN bit in HW_LCDIF_CTRL register. To avoid
-	 * having to set this bit manually after every single change in the
-	 * framebuffer memory, we set up specially crafted circular DMA, which
-	 * sets the RUN bit, then waits until it gets cleared and repeats this
-	 * infinitelly. This way, we get smooth continuous updates of the LCD.
-	 */
-	struct mxs_lcdif_regs *regs = (struct mxs_lcdif_regs *)MXS_LCDIF_BASE;
-
-	memset(&desc, 0, sizeof(struct mxs_dma_desc));
-	desc.address = (dma_addr_t)&desc;
-	desc.cmd.data = MXS_DMA_DESC_COMMAND_NO_DMAXFER | MXS_DMA_DESC_CHAIN |
-			MXS_DMA_DESC_WAIT4END |
-			(1 << MXS_DMA_DESC_PIO_WORDS_OFFSET);
-	desc.cmd.pio_words[0] = readl(&regs->hw_lcdif_ctrl) | LCDIF_CTRL_RUN;
-	desc.cmd.next = (uint32_t)&desc.cmd;
-
-	/* Execute the DMA chain. */
-	mxs_dma_circ_start(MXS_DMA_CHANNEL_AHB_APBH_LCDIF, &desc);
-#endif
+	ret = mxs_probe_common(&mode, bpp, (u32)fb);
+	if (ret)
+		goto dealloc_fb;
 
 	return (void *)&panel;
+
+dealloc_fb:
+	free(fb);
+
+	return NULL;
 }
+#else /* ifndef CONFIG_DM_VIDEO */
+
+static int mxs_video_probe(struct udevice *dev)
+{
+	struct video_uc_platdata *plat = dev_get_uclass_platdata(dev);
+	struct video_priv *uc_priv = dev_get_uclass_priv(dev);
+
+	struct ctfb_res_modes mode;
+	struct display_timing timings;
+	int bpp = -1;
+	u32 fb_start, fb_end;
+	int ret;
+
+	debug("%s() plat: base 0x%lx, size 0x%x\n",
+	       __func__, plat->base, plat->size);
+
+	ret = ofnode_decode_display_timing(dev_ofnode(dev), 0, &timings);
+	if (ret) {
+		dev_err(dev, "failed to get any display timings\n");
+		return -EINVAL;
+	}
+
+	mode.xres = timings.hactive.typ;
+	mode.yres = timings.vactive.typ;
+	mode.left_margin = timings.hback_porch.typ;
+	mode.right_margin = timings.hfront_porch.typ;
+	mode.upper_margin = timings.vback_porch.typ;
+	mode.lower_margin = timings.vfront_porch.typ;
+	mode.hsync_len = timings.hsync_len.typ;
+	mode.vsync_len = timings.vsync_len.typ;
+	mode.pixclock = HZ2PS(timings.pixelclock.typ);
+
+	bpp = BITS_PP;
+
+	ret = mxs_probe_common(&mode, bpp, plat->base);
+	if (ret)
+		return ret;
+
+	switch (bpp) {
+	case 24:
+	case 18:
+		uc_priv->bpix = VIDEO_BPP32;
+		break;
+	case 16:
+		uc_priv->bpix = VIDEO_BPP16;
+		break;
+	case 8:
+		uc_priv->bpix = VIDEO_BPP8;
+		break;
+	default:
+		dev_err(dev, "invalid bpp specified (bpp = %i)\n", bpp);
+		return -EINVAL;
+	}
+
+	uc_priv->xsize = mode.xres;
+	uc_priv->ysize = mode.yres;
+
+	/* Enable dcache for the frame buffer */
+	fb_start = plat->base & ~(MMU_SECTION_SIZE - 1);
+	fb_end = plat->base + plat->size;
+	fb_end = ALIGN(fb_end, 1 << MMU_SECTION_SHIFT);
+	mmu_set_region_dcache_behaviour(fb_start, fb_end - fb_start,
+					DCACHE_WRITEBACK);
+	video_set_flush_dcache(dev, true);
+
+	return ret;
+}
+
+static int mxs_video_bind(struct udevice *dev)
+{
+	struct video_uc_platdata *plat = dev_get_uclass_platdata(dev);
+	struct display_timing timings;
+	int ret;
+
+	ret = ofnode_decode_display_timing(dev_ofnode(dev), 0, &timings);
+	if (ret) {
+		dev_err(dev, "failed to get any display timings\n");
+		return -EINVAL;
+	}
+
+	plat->size = timings.hactive.typ * timings.vactive.typ * BYTES_PP;
+
+	return 0;
+}
+
+static int mxs_video_remove(struct udevice *dev)
+{
+	struct video_uc_platdata *plat = dev_get_uclass_platdata(dev);
+
+	mxs_remove_common(plat->base);
+
+	return 0;
+}
+
+static const struct udevice_id mxs_video_ids[] = {
+	{ .compatible = "fsl,imx23-lcdif" },
+	{ .compatible = "fsl,imx28-lcdif" },
+	{ .compatible = "fsl,imx7ulp-lcdif" },
+	{ /* sentinel */ }
+};
+
+U_BOOT_DRIVER(mxs_video) = {
+	.name	= "mxs_video",
+	.id	= UCLASS_VIDEO,
+	.of_match = mxs_video_ids,
+	.bind	= mxs_video_bind,
+	.probe	= mxs_video_probe,
+	.remove = mxs_video_remove,
+	.flags	= DM_FLAG_PRE_RELOC,
+};
+#endif /* ifndef CONFIG_DM_VIDEO */

include/configs/colibri_imx7.h

@@ -225,7 +225,7 @@
 #define CONFIG_SYS_DFU_DATA_BUF_SIZE	SZ_16M
 #define DFU_DEFAULT_POLL_TIMEOUT	300
 
-#ifdef CONFIG_VIDEO
+#if defined(CONFIG_VIDEO) || defined(CONFIG_DM_VIDEO)
 #define CONFIG_VIDEO_MXS
 #define CONFIG_VIDEO_LOGO
 #define CONFIG_SPLASH_SCREEN

include/splash.h

@@ -66,10 +66,10 @@ void splash_get_pos(int *x, int *y);
 static inline void splash_get_pos(int *x, int *y) { }
 #endif
 
-#if defined(CONFIG_SPLASH_SCREEN) && defined(CONFIG_LCD)
-int lcd_splash(ulong addr);
+#if defined(CONFIG_SPLASH_SCREEN) && defined(CONFIG_CMD_BMP)
+int splash_display(void);
 #else
-static inline int lcd_splash(ulong addr)
+static inline int splash_display(void)
 {
 	return -ENOSYS;
 }