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EMP202 chip inside Terratec Grabby (hw rev 2) seems to require some time before accessing reliably its registers. Otherwise it returns some values previously put on the I2C bus. To account for that period, we delay card setup until we have a proof that accessing AC97 registers is reliable. We get this proof by polling AC97_RESET until the expected value is read. We also check that unrelated registers don't return the same value. This second check handles the case where the expected value is constantly returned no matter which register is accessed. Signed-off-by: Matthieu Rogez <matthieu.rogez@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com> |
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| .. | ||
| em28xx-audio.c | ||
| em28xx-camera.c | ||
| em28xx-cards.c | ||
| em28xx-core.c | ||
| em28xx-dvb.c | ||
| em28xx-i2c.c | ||
| em28xx-input.c | ||
| em28xx-reg.h | ||
| em28xx-v4l.h | ||
| em28xx-vbi.c | ||
| em28xx-video.c | ||
| em28xx.h | ||
| Kconfig | ||
| Makefile | ||