Contributors: 1
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Thomas Zimmermann |
256 |
100.00% |
10 |
100.00% |
| Total |
256 |
|
10 |
|
// SPDX-License-Identifier: GPL-2.0-only
#include <linux/export.h>
#include <linux/limits.h>
#include <linux/minmax.h>
#include <linux/module.h>
#include <drm/drm_print.h>
#include "drm_sysfb_helper.h"
int drm_sysfb_get_validated_int(struct drm_device *dev, const char *name,
u64 value, u32 max)
{
if (value > min(max, INT_MAX)) {
drm_warn(dev, "%s of %llu exceeds maximum of %u\n", name, value, max);
return -EINVAL;
}
return value;
}
EXPORT_SYMBOL(drm_sysfb_get_validated_int);
int drm_sysfb_get_validated_int0(struct drm_device *dev, const char *name,
u64 value, u32 max)
{
if (!value) {
drm_warn(dev, "%s of 0 not allowed\n", name);
return -EINVAL;
}
return drm_sysfb_get_validated_int(dev, name, value, max);
}
EXPORT_SYMBOL(drm_sysfb_get_validated_int0);
const struct drm_format_info *drm_sysfb_get_format(struct drm_device *dev,
const struct drm_sysfb_format *formats,
size_t nformats,
const struct pixel_format *pixel)
{
const struct drm_format_info *format = NULL;
size_t i;
for (i = 0; i < nformats; ++i) {
const struct drm_sysfb_format *f = &formats[i];
if (pixel_format_equal(pixel, &f->pixel)) {
format = drm_format_info(f->fourcc);
break;
}
}
if (!format)
drm_warn(dev, "No compatible color format found\n");
return format;
}
EXPORT_SYMBOL(drm_sysfb_get_format);
MODULE_DESCRIPTION("Helpers for DRM sysfb drivers");
MODULE_LICENSE("GPL");