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media: staging: media: zoran: remove detect_guest_activity

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The detect_guest_activity function is no longer used, so lets removed it.

[hverkuil: remove dump_guests() as well as that too is now unused]

Signed-off-by: Corentin Labbe <clabbe@baylibre.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
This commit is contained in:
Corentin Labbe
2021-05-18 14:41:09 +02:00
committed by Mauro Carvalho Chehab
parent b75a44de44
commit efdd0d42e2
2 changed files with 0 additions and 67 deletions
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65
drivers/staging/media/zoran/zoran_device.c
View File

@@ -147,71 +147,6 @@ int post_office_read(struct zoran *zr, unsigned int guest, unsigned int reg)
return btread(ZR36057_POR) & 0xFF;
}
/*
* detect guests
*/
static void dump_guests(struct zoran *zr)
{
if (zr36067_debug > 2) {
int i, guest[8];
/* do not print random data */
guest[0] = 0;
for (i = 1; i < 8; i++) /* Don't read jpeg codec here */
guest[i] = post_office_read(zr, i, 0);
pci_info(zr->pci_dev, "Guests: %*ph\n", 8, guest);
}
}
void detect_guest_activity(struct zoran *zr)
{
int timeout, i, j, res, guest[8], guest0[8], change[8][3];
ktime_t t0, t1;
/* do not print random data */
guest[0] = 0;
guest0[0] = 0;
dump_guests(zr);
pci_info(zr->pci_dev, "Detecting guests activity, please wait...\n");
for (i = 1; i < 8; i++) /* Don't read jpeg codec here */
guest0[i] = guest[i] = post_office_read(zr, i, 0);
timeout = 0;
j = 0;
t0 = ktime_get();
while (timeout < 10000) {
udelay(10);
timeout++;
for (i = 1; (i < 8) && (j < 8); i++) {
res = post_office_read(zr, i, 0);
if (res != guest[i]) {
t1 = ktime_get();
change[j][0] = ktime_to_us(ktime_sub(t1, t0));
t0 = t1;
change[j][1] = i;
change[j][2] = res;
j++;
guest[i] = res;
}
}
if (j >= 8)
break;
}
pci_info(zr->pci_dev, "Guests: %*ph\n", 8, guest0);
if (j == 0) {
pci_info(zr->pci_dev, "No activity detected.\n");
return;
}
for (i = 0; i < j; i++)
pci_info(zr->pci_dev, "%6d: %d => 0x%02x\n", change[i][0], change[i][1], change[i][2]);
}
/*
* JPEG Codec access
*/

2
drivers/staging/media/zoran/zoran_device.h
View File

@@ -20,8 +20,6 @@ extern int post_office_wait(struct zoran *zr);
extern int post_office_write(struct zoran *zr, unsigned int guest, unsigned int reg, unsigned int value);
extern int post_office_read(struct zoran *zr, unsigned int guest, unsigned int reg);
extern void detect_guest_activity(struct zoran *zr);
extern void jpeg_codec_sleep(struct zoran *zr, int sleep);
extern int jpeg_codec_reset(struct zoran *zr);