diff options
Diffstat (limited to 'drivers/video/videomode.c')
| -rw-r--r-- | drivers/video/videomode.c | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/drivers/video/videomode.c b/drivers/video/videomode.c new file mode 100644 index 000000000..2ecf80c08 --- /dev/null +++ b/drivers/video/videomode.c @@ -0,0 +1,44 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * generic display timing functions + * + * Copyright (c) 2012 Steffen Trumtrar <s.trumtrar@pengutronix.de>, Pengutronix + */ + +#include <linux/errno.h> +#include <linux/export.h> +#include <video/display_timing.h> +#include <video/videomode.h> + +void videomode_from_timing(const struct display_timing *dt, + struct videomode *vm) +{ + vm->pixelclock = dt->pixelclock.typ; + vm->hactive = dt->hactive.typ; + vm->hfront_porch = dt->hfront_porch.typ; + vm->hback_porch = dt->hback_porch.typ; + vm->hsync_len = dt->hsync_len.typ; + + vm->vactive = dt->vactive.typ; + vm->vfront_porch = dt->vfront_porch.typ; + vm->vback_porch = dt->vback_porch.typ; + vm->vsync_len = dt->vsync_len.typ; + + vm->flags = dt->flags; +} +EXPORT_SYMBOL_GPL(videomode_from_timing); + +int videomode_from_timings(const struct display_timings *disp, + struct videomode *vm, unsigned int index) +{ + struct display_timing *dt; + + dt = display_timings_get(disp, index); + if (!dt) + return -EINVAL; + + videomode_from_timing(dt, vm); + + return 0; +} +EXPORT_SYMBOL_GPL(videomode_from_timings); |