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Merge the mode-init functions of ofdrm and simpledrm to the new helper drm_sysfb_mode(). Also implement the DPI defaults there. Replace the code in each driver with the shared helper. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Link: https://lore.kernel.org/r/20250401094056.32904-7-tzimmermann@suse.de
33 lines
716 B
C
33 lines
716 B
C
// SPDX-License-Identifier: GPL-2.0-only
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#include <linux/module.h>
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#include "drm_sysfb_helper.h"
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MODULE_DESCRIPTION("Helpers for DRM sysfb drivers");
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MODULE_LICENSE("GPL");
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struct drm_display_mode drm_sysfb_mode(unsigned int width,
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unsigned int height,
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unsigned int width_mm,
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unsigned int height_mm)
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{
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/*
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* Assume a monitor resolution of 96 dpi to
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* get a somewhat reasonable screen size.
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*/
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if (!width_mm)
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width_mm = DRM_MODE_RES_MM(width, 96ul);
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if (!height_mm)
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height_mm = DRM_MODE_RES_MM(height, 96ul);
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{
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const struct drm_display_mode mode = {
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DRM_MODE_INIT(60, width, height, width_mm, height_mm)
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};
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return mode;
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}
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}
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EXPORT_SYMBOL(drm_sysfb_mode);
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