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| author | Thomas Zimmermann <tzimmermann@suse.de> | 2022-09-05 16:16:47 +0200 |
|---|---|---|
| committer | Thomas Zimmermann <tzimmermann@suse.de> | 2022-09-12 09:14:59 +0200 |
| commit | 385d1bba890f9b94322ca7fdfa778311f1ea0813 (patch) | |
| tree | 6cc1a125f62713c631dc5606e5b7b0ea8d7bb7e0 /include/drm | |
| parent | 216b9bbaeaea96b7f05c220f61855d174be972d8 (diff) | |
| download | linux-stable-385d1bba890f9b94322ca7fdfa778311f1ea0813.tar.gz linux-stable-385d1bba890f9b94322ca7fdfa778311f1ea0813.tar.bz2 linux-stable-385d1bba890f9b94322ca7fdfa778311f1ea0813.zip | |
drm/modes: Add initializer macro DRM_MODE_INIT()
The macro DRM_MODE_INIT() initializes an instance of
struct drm_display_mode with typical parameters. Convert simpledrm
and also update the macro DRM_SIMPLE_MODE().
v3:
* fix DRM_MODE_INIT() docs (kernel test robot)
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220905141648.22013-4-tzimmermann@suse.de
Diffstat (limited to 'include/drm')
| -rw-r--r-- | include/drm/drm_modes.h | 35 |
1 files changed, 30 insertions, 5 deletions
diff --git a/include/drm/drm_modes.h b/include/drm/drm_modes.h index a80ae9639e96..b0c680e6f670 100644 --- a/include/drm/drm_modes.h +++ b/include/drm/drm_modes.h @@ -139,6 +139,35 @@ enum drm_mode_status { .vscan = (vs), .flags = (f) /** + * DRM_MODE_RES_MM - Calculates the display size from resolution and DPI + * @res: The resolution in pixel + * @dpi: The number of dots per inch + */ +#define DRM_MODE_RES_MM(res, dpi) \ + (((res) * 254ul) / ((dpi) * 10ul)) + +#define __DRM_MODE_INIT(pix, hd, vd, hd_mm, vd_mm) \ + .type = DRM_MODE_TYPE_DRIVER, .clock = (pix), \ + .hdisplay = (hd), .hsync_start = (hd), .hsync_end = (hd), \ + .htotal = (hd), .vdisplay = (vd), .vsync_start = (vd), \ + .vsync_end = (vd), .vtotal = (vd), .width_mm = (hd_mm), \ + .height_mm = (vd_mm) + +/** + * DRM_MODE_INIT - Initialize display mode + * @hz: Vertical refresh rate in Hertz + * @hd: Horizontal resolution, width + * @vd: Vertical resolution, height + * @hd_mm: Display width in millimeters + * @vd_mm: Display height in millimeters + * + * This macro initializes a &drm_display_mode that contains information about + * refresh rate, resolution and physical size. + */ +#define DRM_MODE_INIT(hz, hd, vd, hd_mm, vd_mm) \ + __DRM_MODE_INIT((hd) * (vd) * (hz) / 1000 /* kHz */, hd, vd, hd_mm, vd_mm) + +/** * DRM_SIMPLE_MODE - Simple display mode * @hd: Horizontal resolution, width * @vd: Vertical resolution, height @@ -149,11 +178,7 @@ enum drm_mode_status { * resolution and physical size. */ #define DRM_SIMPLE_MODE(hd, vd, hd_mm, vd_mm) \ - .type = DRM_MODE_TYPE_DRIVER, .clock = 1 /* pass validation */, \ - .hdisplay = (hd), .hsync_start = (hd), .hsync_end = (hd), \ - .htotal = (hd), .vdisplay = (vd), .vsync_start = (vd), \ - .vsync_end = (vd), .vtotal = (vd), .width_mm = (hd_mm), \ - .height_mm = (vd_mm) + __DRM_MODE_INIT(1 /* pass validation */, hd, vd, hd_mm, vd_mm) #define CRTC_INTERLACE_HALVE_V (1 << 0) /* halve V values for interlacing */ #define CRTC_STEREO_DOUBLE (1 << 1) /* adjust timings for stereo modes */ |