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Added i2c high speed support.
Bug 873879
Reviewed-on: http://git-master/r/71997
Change-Id: I5a2c5f272485e6f7c8bb6c11d7c3b6850fdcd768
Signed-off-by: Alok Chauhan <alokc@nvidia.com>
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
Reviewed-on: http://git-master/r/77741
Reviewed-by: Automatic_Commit_Validation_User
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Updated the tegra_i2c_platform_data to remove warnings.
bug 854305
Original-Change-Id: I21257dc7b78b6fe3a6d19c959f003f2cb13b10f1
Reviewed-on: http://git-master/r/47729
Reviewed-by: Alok Chauhan <alokc@nvidia.com>
Tested-by: Alok Chauhan <alokc@nvidia.com>
Reviewed-by: Laxman Dewangan <ldewangan@nvidia.com>
Rebase-Id: R9ef4b727c6c0e4f8c9ec275fd311fdaf95400ce0
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Updated arbitration lost recovery to accumulate i2c multiplexing.
bug 854305
Original-Change-Id: I3f669c507980df78fa443c84b304d337bbe6a6da
Reviewed-on: http://git-master/r/46630
Reviewed-by: Alok Chauhan <alokc@nvidia.com>
Reviewed-by: Bandi Krishna Chaitanya <bandik@nvidia.com>
Tested-by: Bandi Krishna Chaitanya <bandik@nvidia.com>
Reviewed-by: Laxman Dewangan <ldewangan@nvidia.com>
Rebase-Id: R987d84dcf51a3d8e366f2e4b2d0d278304e2db76
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Added the arbitration lost error recovery code into
i2c driver.
bug 854305
Original-Change-Id: Ib855f3541d139c01ea34fd9070feef7969eed395
Reviewed-on: http://git-master/r/43201
Reviewed-by: Bandi Krishna Chaitanya <bandik@nvidia.com>
Tested-by: Bandi Krishna Chaitanya <bandik@nvidia.com>
Reviewed-by: Alok Chauhan <alokc@nvidia.com>
Reviewed-by: Laxman Dewangan <ldewangan@nvidia.com>
Rebase-Id: R7cda6214579416b3b0a4eafe412a18293260e669
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Original-Change-Id: I2ffeaf6f8dfeb279b40ca6f69f6c9157401a746a
Rebase-Id: R84f13e4b66ba9711fcb92850fd5e800ef3248a3f
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To make the response fast from i2c, providing the option to enable
clock of i2c always through platform data.
Original-Change-Id: I89c9156fc97f92a45ce72626ccd77920e02ca356
Reviewed-on: http://git-master/r/19880
Tested-by: Pradeep Goudagunta <pgoudagunta@nvidia.com>
Reviewed-by: Ramachandrudu Kandhala <rkandhala@nvidia.com>
Original-Change-Id: Ifaab9d7e052fb377abe27afdeb5c9cb4d19a6320
Rebase-Id: R15e2cfa9080024d9e2bbc8d966f5145766ee9e1a
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Implementing i2c slave driver in the linux i2c framework.
This driver will support the slave functionality on tegra i2c
controller.
Original-Change-Id: Ia56e3299605ab8705f2f82bf512195e7736214b3
Reviewed-on: http://git-master/r/14208
Reviewed-by: Laxman Dewangan <ldewangan@nvidia.com>
Tested-by: Laxman Dewangan <ldewangan@nvidia.com>
Reviewed-by: Alok Chauhan <alokc@nvidia.com>
Reviewed-by: Scott Williams <scwilliams@nvidia.com>
Original-Change-Id: I01b742f2c9477f0df476330e49163eda43a8d14f
Rebase-Id: R0127682848aa0cf230cc63b29e8c2c712c4e28f3
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New i2c slave should be configured with a non-zero i2c address.
Configure i2c slave with an i2c address assigned by platform
data for an i2c dev.
BUG 788286
Reviewed-on: http://git-master/r/25100
(cherry picked from commit e6e0610c72ffce3b734e079faf88fad3f0468d07)
Original-Change-Id: I440aa2cc72007d2835b2027c0b26089d0aad9263
Reviewed-on: http://git-master/r/25223
Reviewed-by: Bharat Nihalani <bnihalani@nvidia.com>
Tested-by: Bharat Nihalani <bnihalani@nvidia.com>
Rebase-Id: Rfac0b98a3aad6f7df4badd5554a63856212a580d
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Sometimes unexpected status like I2C busy status, Tx FIFO interrupted
and wait on Rx data etc is seen. Add a code to detect such conditions
and return -EAGAIN from driver. This will cause the i2c-core to retry
the transmission as per the retry count and time-out specified by the
platform data of the adapter.
Bug ID: 777455
Original-Change-Id: Iac5971bca4d760d93cd2ed147f78fc2807315b4e
Signed-off-by: Jin Park <jinyoungp@nvidia.com>
Reviewed-on: http://git-master/r/16212
Reviewed-by: Bharat Nihalani <bnihalani@nvidia.com>
Rebase-Id: R7c56bb575b1e7be19d1916124cdd86618c2f9c42
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this adds support for dynamically reprogramming the I2C controller's
pin mux on transaction boundaries to enable one controller to be
registered as multiple I2C bus adapters with the kernel. this allows
platform designers an additional tool to resolve clock rate, I/O
voltage and electrical loading restrictions between the platform's
peripherals.
the i2c-tegra platform data is extended to support this; platforms
which use this feature should pass in the number of busses which
should be created for each controller, the starting adapter number
to use and the clock rate and pin mux for each virtual bus.
Change-Id: I57a96deb7b7b793222ec3f8cc3a941917a023609
Signed-off-by: Gary King <gking@nvidia.com>
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Adds I2C bus driver for nVidia Tegra SoCs. Tegra includes 4 I2C
controllers, one of which is inside the Dynamic Voltage Controller
and has a slightly different register map.
Signed-off-by: Colin Cross <ccross@android.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
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