rk3568 rt uboot init

hc

2023-11-06 9df731a176aab8e03b984b681b1bea01ccff6644

 u-boot/drivers/video/drm/drm_modes.c
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@@ -60,6 +60,19 @@
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 }
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 /**
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+ * drm_mode_copy - copy the mode
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+ * @dst: mode to overwrite
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+ * @src: mode to copy
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+ *
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+ * Copy an existing mode into another mode, preserving the object id and
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+ * list head of the destination mode.
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+ */
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+void drm_mode_copy(struct drm_display_mode *dst, const struct drm_display_mode *src)
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+{
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+	*dst = *src;
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+}
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+
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+/**
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  * drm_mode_destroy - remove a mode
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  * @mode: mode to remove
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  */
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@@ -185,6 +198,45 @@
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 }
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 /**
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+ * drm_display_mode_from_videomode - fill in @dmode using @vm,
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+ * @vm: videomode structure to use as source
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+ * @dmode: drm_display_mode structure to use as destination
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+ *
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+ * Fills out @dmode using the display mode specified in @vm.
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+ */
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+void drm_display_mode_from_videomode(const struct videomode *vm,
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+				     struct drm_display_mode *dmode)
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+{
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+	dmode->hdisplay = vm->hactive;
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+	dmode->hsync_start = dmode->hdisplay + vm->hfront_porch;
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+	dmode->hsync_end = dmode->hsync_start + vm->hsync_len;
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+	dmode->htotal = dmode->hsync_end + vm->hback_porch;
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+
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+	dmode->vdisplay = vm->vactive;
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+	dmode->vsync_start = dmode->vdisplay + vm->vfront_porch;
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+	dmode->vsync_end = dmode->vsync_start + vm->vsync_len;
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+	dmode->vtotal = dmode->vsync_end + vm->vback_porch;
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+
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+	dmode->clock = vm->pixelclock / 1000;
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+
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+	dmode->flags = 0;
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+	if (vm->flags & DISPLAY_FLAGS_HSYNC_HIGH)
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+		dmode->flags |= DRM_MODE_FLAG_PHSYNC;
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+	else if (vm->flags & DISPLAY_FLAGS_HSYNC_LOW)
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+		dmode->flags |= DRM_MODE_FLAG_NHSYNC;
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+	if (vm->flags & DISPLAY_FLAGS_VSYNC_HIGH)
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+		dmode->flags |= DRM_MODE_FLAG_PVSYNC;
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+	else if (vm->flags & DISPLAY_FLAGS_VSYNC_LOW)
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+		dmode->flags |= DRM_MODE_FLAG_NVSYNC;
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+	if (vm->flags & DISPLAY_FLAGS_INTERLACED)
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+		dmode->flags |= DRM_MODE_FLAG_INTERLACE;
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+	if (vm->flags & DISPLAY_FLAGS_DOUBLESCAN)
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+		dmode->flags |= DRM_MODE_FLAG_DBLSCAN;
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+	if (vm->flags & DISPLAY_FLAGS_DOUBLECLK)
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+		dmode->flags |= DRM_MODE_FLAG_DBLCLK;
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+}
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+
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+/**
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  * drm_display_mode_to_videomode - fill in @vm using @dmode,
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  * @dmode: drm_display_mode structure to use as source
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  * @vm: videomode structure to use as destination