| author | Tomi Valkeinen <tomi.valkeinen@ti.com> | |
| Tue, 26 May 2015 09:59:20 +0000 (12:59 +0300) | ||
| committer | Jyri Sarha <jsarha@ti.com> | |
| Wed, 27 May 2015 11:43:03 +0000 (14:43 +0300) | ||
| commit | 9bd88bbbbc64e6ba2e86cf4ad92e3aaade896292 | |
| tree | 3d0d714397a74686b52fac1036407164b0b935ca | tree | snapshot (tar.xz tar.gz zip) |
| parent | bf0bd1f57a5eab913bfd81da002caea560a8db81 | commit | diff |
OMAPDSS: dra7-tpd12s015: lock i2c adapter when using DDC
On DRA7 the i2c2 bus is shared between i2c and DDC modes. At the moment
the TPD12S015 driver can switch the muxing at any time, which could lead
to an i2c device getting transfer errors if it is using i2c2 bus.
This patch solves the issue by making TPD12S015 driver use
i2c_lock_adapter() when the pins are in DDC mode.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Tested-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Jyri Sarha <jsarha@ti.com>
On DRA7 the i2c2 bus is shared between i2c and DDC modes. At the moment
the TPD12S015 driver can switch the muxing at any time, which could lead
to an i2c device getting transfer errors if it is using i2c2 bus.
This patch solves the issue by making TPD12S015 driver use
i2c_lock_adapter() when the pins are in DDC mode.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Tested-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Jyri Sarha <jsarha@ti.com>
| arch/arm/boot/dts/dra7-evm.dts | diff | blob | history | |
| drivers/video/fbdev/omap2/displays-new/dra7-evm-encoder-tpd12s015.c | diff | blob | history |