1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
|
// SPDX-License-Identifier: GPL-2.0-only
/*
* Test cases for for the DRM DP MST helpers
*/
#include <drm/drm_dp_mst_helper.h>
#include <drm/drm_print.h>
#include "test-drm_modeset_common.h"
int igt_dp_mst_calc_pbn_mode(void *ignored)
{
int pbn, i;
const struct {
int rate;
int bpp;
int expected;
} test_params[] = {
{ 154000, 30, 689 },
{ 234000, 30, 1047 },
{ 297000, 24, 1063 },
};
for (i = 0; i < ARRAY_SIZE(test_params); i++) {
pbn = drm_dp_calc_pbn_mode(test_params[i].rate,
test_params[i].bpp);
FAIL(pbn != test_params[i].expected,
"Expected PBN %d for clock %d bpp %d, got %d\n",
test_params[i].expected, test_params[i].rate,
test_params[i].bpp, pbn);
}
return 0;
}
|
