[PATCH v9 5/6] drm_modes: add videomode helpers
From: Steffen Trumtrar <hidden>
Date: 2012-11-14 11:43:22
Also in:
dri-devel, linux-devicetree, linux-media
Subsystem:
drm drivers, drm drivers and misc gpu patches, the rest · Maintainers:
David Airlie, Simona Vetter, Maarten Lankhorst, Maxime Ripard, Thomas Zimmermann, Linus Torvalds
Add conversion from videomode to drm_display_mode Signed-off-by: Steffen Trumtrar <redacted> --- drivers/gpu/drm/drm_modes.c | 36 ++++++++++++++++++++++++++++++++++++ include/drm/drmP.h | 6 ++++++ 2 files changed, 42 insertions(+)
diff --git a/drivers/gpu/drm/drm_modes.c b/drivers/gpu/drm/drm_modes.c
index 59450f3..42ea099 100644
--- a/drivers/gpu/drm/drm_modes.c
+++ b/drivers/gpu/drm/drm_modes.c@@ -35,6 +35,7 @@ #include <linux/export.h> #include <drm/drmP.h> #include <drm/drm_crtc.h> +#include <linux/videomode.h> /** * drm_mode_debug_printmodeline - debug print a mode
@@ -504,6 +505,41 @@ drm_gtf_mode(struct drm_device *dev, int hdisplay, int vdisplay, int vrefresh, } EXPORT_SYMBOL(drm_gtf_mode); +#if IS_ENABLED(CONFIG_VIDEOMODE) +int display_mode_from_videomode(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->hah) + dmode->flags |= DRM_MODE_FLAG_PHSYNC; + else + dmode->flags |= DRM_MODE_FLAG_NHSYNC; + if (vm->vah) + dmode->flags |= DRM_MODE_FLAG_PVSYNC; + else + dmode->flags |= DRM_MODE_FLAG_NVSYNC; + if (vm->interlaced) + dmode->flags |= DRM_MODE_FLAG_INTERLACE; + if (vm->doublescan) + dmode->flags |= DRM_MODE_FLAG_DBLSCAN; + drm_mode_set_name(dmode); + + return 0; +} +EXPORT_SYMBOL_GPL(display_mode_from_videomode); +#endif + /** * drm_mode_set_name - set the name on a mode * @mode: name will be set in this mode
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index 3fd8280..1e0d846 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h@@ -56,6 +56,7 @@ #include <linux/cdev.h> #include <linux/mutex.h> #include <linux/slab.h> +#include <linux/videomode.h> #if defined(__alpha__) || defined(__powerpc__) #include <asm/pgtable.h> /* For pte_wrprotect */ #endif
@@ -1454,6 +1455,11 @@ extern struct drm_display_mode * drm_mode_create_from_cmdline_mode(struct drm_device *dev, struct drm_cmdline_mode *cmd); +#if IS_ENABLED(CONFIG_VIDEOMODE) +extern int display_mode_from_videomode(struct videomode *vm, + struct drm_display_mode *dmode); +#endif + /* Modesetting support */ extern void drm_vblank_pre_modeset(struct drm_device *dev, int crtc); extern void drm_vblank_post_modeset(struct drm_device *dev, int crtc);
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1.7.10.4