From 9df731a176aab8e03b984b681b1bea01ccff6644 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Mon, 06 Nov 2023 07:23:06 +0000
Subject: [PATCH] rk3568 rt uboot init
---
u-boot/drivers/video/drm/drm_modes.c | 52 ++++++++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 52 insertions(+), 0 deletions(-)
diff --git a/u-boot/drivers/video/drm/drm_modes.c b/u-boot/drivers/video/drm/drm_modes.c
index fabae87..2c35919 100644
--- a/u-boot/drivers/video/drm/drm_modes.c
+++ b/u-boot/drivers/video/drm/drm_modes.c
@@ -60,6 +60,19 @@
}
/**
+ * drm_mode_copy - copy the mode
+ * @dst: mode to overwrite
+ * @src: mode to copy
+ *
+ * Copy an existing mode into another mode, preserving the object id and
+ * list head of the destination mode.
+ */
+void drm_mode_copy(struct drm_display_mode *dst, const struct drm_display_mode *src)
+{
+ *dst = *src;
+}
+
+/**
* drm_mode_destroy - remove a mode
* @mode: mode to remove
*/
@@ -185,6 +198,45 @@
}
/**
+ * drm_display_mode_from_videomode - fill in @dmode using @vm,
+ * @vm: videomode structure to use as source
+ * @dmode: drm_display_mode structure to use as destination
+ *
+ * Fills out @dmode using the display mode specified in @vm.
+ */
+void drm_display_mode_from_videomode(const struct videomode *vm,
+ struct drm_display_mode *dmode)
+{
+ dmode->hdisplay = vm->hactive;
+ dmode->hsync_start = dmode->hdisplay + vm->hfront_porch;
+ dmode->hsync_end = dmode->hsync_start + vm->hsync_len;
+ dmode->htotal = dmode->hsync_end + vm->hback_porch;
+
+ dmode->vdisplay = vm->vactive;
+ dmode->vsync_start = dmode->vdisplay + vm->vfront_porch;
+ dmode->vsync_end = dmode->vsync_start + vm->vsync_len;
+ dmode->vtotal = dmode->vsync_end + vm->vback_porch;
+
+ dmode->clock = vm->pixelclock / 1000;
+
+ dmode->flags = 0;
+ if (vm->flags & DISPLAY_FLAGS_HSYNC_HIGH)
+ dmode->flags |= DRM_MODE_FLAG_PHSYNC;
+ else if (vm->flags & DISPLAY_FLAGS_HSYNC_LOW)
+ dmode->flags |= DRM_MODE_FLAG_NHSYNC;
+ if (vm->flags & DISPLAY_FLAGS_VSYNC_HIGH)
+ dmode->flags |= DRM_MODE_FLAG_PVSYNC;
+ else if (vm->flags & DISPLAY_FLAGS_VSYNC_LOW)
+ dmode->flags |= DRM_MODE_FLAG_NVSYNC;
+ if (vm->flags & DISPLAY_FLAGS_INTERLACED)
+ dmode->flags |= DRM_MODE_FLAG_INTERLACE;
+ if (vm->flags & DISPLAY_FLAGS_DOUBLESCAN)
+ dmode->flags |= DRM_MODE_FLAG_DBLSCAN;
+ if (vm->flags & DISPLAY_FLAGS_DOUBLECLK)
+ dmode->flags |= DRM_MODE_FLAG_DBLCLK;
+}
+
+/**
* drm_display_mode_to_videomode - fill in @vm using @dmode,
* @dmode: drm_display_mode structure to use as source
* @vm: videomode structure to use as destination
--
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