1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * generic display timing functions 4 * 5 * Copyright (c) 2012 Steffen Trumtrar <s.trumtrar@pengutronix.de>, Pengutronix 6 */ 7 8 #include <linux/errno.h> 9 #include <linux/export.h> 10 #include <video/display_timing.h> 11 #include <video/videomode.h> 12 13 void videomode_from_timing(const struct display_timing *dt, 14 struct videomode *vm) 15 { 16 vm->pixelclock = dt->pixelclock.typ; 17 vm->hactive = dt->hactive.typ; 18 vm->hfront_porch = dt->hfront_porch.typ; 19 vm->hback_porch = dt->hback_porch.typ; 20 vm->hsync_len = dt->hsync_len.typ; 21 22 vm->vactive = dt->vactive.typ; 23 vm->vfront_porch = dt->vfront_porch.typ; 24 vm->vback_porch = dt->vback_porch.typ; 25 vm->vsync_len = dt->vsync_len.typ; 26 27 vm->flags = dt->flags; 28 } 29 EXPORT_SYMBOL_GPL(videomode_from_timing); 30 31 int videomode_from_timings(const struct display_timings *disp, 32 struct videomode *vm, unsigned int index) 33 { 34 struct display_timing *dt; 35 36 dt = display_timings_get(disp, index); 37 if (!dt) 38 return -EINVAL; 39 40 videomode_from_timing(dt, vm); 41 42 return 0; 43 } 44 EXPORT_SYMBOL_GPL(videomode_from_timings); 45