linux/drivers/video/fbdev/omap2
Tomi Valkeinen a87a6d6b09 OMAPDSS: encoder-tpd12s015: Fix race issue with LS_OE
A race issue has been observed with the encoder-tpd12s015 driver, which
leads to errors when trying to read EDID. This has only now been
observed, as OMAP4 and OMAP5 boards used SoC's GPIOs for LS_OE GPIO. On
dra7-evm boards, the LS_OE is behind a i2c controlled GPIO expander,
which increases the time to set the LS_OE.

This patch simplifies the handling of the LS_OE gpio in the driver by
removing the interrupt handling totally. The only time we actually need
to enable LS_OE is when we are reading the EDID, and thus we can just
set and clear the LS_OE gpio inside the read_edid() function.

This also has the additional benefit of very slightly decreasing the
power consumption.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2015-02-04 12:32:04 +02:00
..
displays-new OMAPDSS: encoder-tpd12s015: Fix race issue with LS_OE 2015-02-04 12:32:04 +02:00
dss OMAPDSS: OMAP5: fix digit output's allowed mgrs 2015-02-04 12:32:03 +02:00
omapfb Merge branch 'platform/remove_owner' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux into driver-core-next 2014-11-03 19:53:56 -08:00
Kconfig
Makefile OMAPDSS: move 'compatible' converter to omapdss driver 2014-05-28 09:25:15 +03:00
vrfb.c