Commit graph

7 commits

Author SHA1 Message Date
Darwin Rambo
7cc1b02f8f i2c: Fix i2c speed command
This corrects i2c core to interpret the value returned by
i2c_set_bus_speed as a success indicator rather than the
actual speed that was set. When i2c_set_bus_speed returns
a failure code, the speed is unknown so the adapter speed
is set to zero.

Signed-off-by: Darwin Rambo <drambo@broadcom.com>
Reviewed-by: Tim Kryger <tim.kryger@linaro.org>
Reviewed-by: Steve Rae <srae@broadcom.com>
Acked-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com>
2014-01-13 08:17:51 +01:00
Masahiro Yamada
9a2a73d29f i2c: eliminate warnings in i2c_reloc_fixup function
The prototype of handlers had changed.
This commit uses cast with (void *) rather than
the handler-specific prototype.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2013-10-17 07:24:41 +02:00
Jens Scharsig (BuS Elektronik)
83d271b5ff Fix: nommu I2C adapter relocation error
NoMMU systems have a access violation problem with i2c_reloc_fixup.
Blame for it is a double relocation of the adapter itself. The
i2c_adap_p is already relocated, if i2c_reloc_fixup is called.
This patch removes the relocation of i2c_adap_p from i2c_reloc_fixup
to fix this.

Signed-off-by: Jens Scharsig (BuS Elektronik) <esw@bus-elektronik.de>
2013-10-17 07:20:25 +02:00
Heiko Schocher
13c2433ccb i2c, core: optimze i2c_set_bus_num()
check first, if we are on the bus, we want to enable. If so,
return immediately, do not calc max adapter number, nor check
other things.

Signed-off-by: Heiko Schocher <hs@denx.de>
Cc: Lukasz Majewski <l.majewski@samsung.com>
Acked-by: Lukasz Majewski <l.majewski@samsung.com>
2013-10-17 07:20:25 +02:00
Michael Burr
e66587495d i2c: Zynq: Support for TI PCA9548 bus multiplexer
(Interface is not quite the same as Phillips PCA9547.)

Signed-off-by: Michael Burr <michael.burr@logicpd.com>
Cc: Heiko Schocher <hs@denx.de>
Cc: Michal Simek <monstr@monstr.eu>
2013-10-17 07:20:25 +02:00
Tom Rini
8dde4ca90e drivers/i2c: Update fti2c010.[ch], i2c_core.c to use SPDX identifiers
Acked-by: Heiko Schocher <hs@denx.de>
Signed-off-by: Tom Rini <trini@ti.com>
2013-07-25 08:51:42 -04:00
Heiko Schocher
385c9ef5a7 i2c: add i2c_core and prepare for new multibus support
This Patch introduce the new i2c_core file, which holds
the I2C core functions, for the rework of the multibus/
multiadapter support.
Also adds changes in i2c.h for the new I2C multibus/multiadapter
support. This new support can be activated with the
CONFIG_SYS_I2C define.

Signed-off-by: Heiko Schocher <hs@denx.de>
Signed-off-by: Simon Glass <sjg@chromium.org>
Cc: Mike Frysinger <vapier@gentoo.org>
Cc: Stephen Warren <swarren@wwwdotorg.org>
2013-07-23 05:54:28 +02:00