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[media] rtl2832: change the i2c gate to be mux-locked

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The root i2c adapter lock is then no longer held by the i2c mux during
accesses behind the i2c gate, and such accesses need to take that lock
just like any other ordinary i2c accesses do.

So, declare the i2c gate mux-locked, and zap the regmap overrides
that makes the i2c accesses unlocked and use plain old regmap
accesses. This also removes the need for the regmap wrappers used by
rtl2832_sdr, so deconvolute the code further and provide the regmap
handle directly instead of the wrapper functions.

Tested-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
This commit is contained in:
Peter Rosin
2016-05-04 22:15:33 +02:00
committed by Wolfram Sang
parent e6d7ffcdf1
commit 1cf79db28e
6 changed files with 37 additions and 182 deletions
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Documentation/i2c/i2c-topology
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@@ -55,7 +55,7 @@ imu/inv_mpu6050/ Mux-locked
In drivers/media/
dvb-frontends/m88ds3103 Parent-locked
dvb-frontends/rtl2830 Parent-locked
dvb-frontends/rtl2832 Parent-locked
dvb-frontends/rtl2832 Mux-locked
dvb-frontends/si2168 Mux-locked
usb/cx231xx/ Parent-locked