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authorJoel Stanley2017-11-01 10:53:30 +1030
committerWolfram Sang2017-11-06 19:15:31 +0100
commitedd20e95bca4a5434f264d8ab40d729761479825 (patch)
tree0aec602dedb9c1c42ba9cb7cf838b065a8076d7e /drivers/i2c/muxes/i2c-mux-reg.c
parent7f2a2f0d0d66b2d834c793df45af3277bb5f10f4 (diff)
i2c: aspeed: Deassert reset in probe
In order to use i2c from a cold boot, the i2c peripheral must be taken out of reset. We request a shared reset controller each time a bus driver is loaded, as the reset is shared between the 14 i2c buses. On remove the reset is asserted, which only touches the hardware once the last i2c bus is removed. The reset is required as the I2C buses will not work without releasing the reset. Previously the driver only worked with out of tree hacks that released this reset before the driver was loaded. Update the device tree bindings to reflect this. Signed-off-by: Joel Stanley <joel@jms.id.au> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Diffstat (limited to 'drivers/i2c/muxes/i2c-mux-reg.c')
0 files changed, 0 insertions, 0 deletions