The uniphier i2c block can recognize some handshake errors.
But driver handles all error detections as no error if no timeout.
So this makes unrecoverable state.

This replaces the return values with the right ones to tell the i2c
framework the errors:
- EDEADLK for arbitration lost error
- ENODATA for no answer error

Signed-off-by: Dai Okamura <okamura.dai@socionext.com>
Acked-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Reviewed-by: Heiko Schocher <hs@denx.de>

The Makefile name is npcm_i2c but the driver is npcm-i2c.

Signed-off-by: Jim Liu <JJLIU0@nuvoton.com>
Reviewed-by: Heiko Schocher <hs@denx.de>

Add newline at the end of the printed string.

Signed-off-by: Sergei Antonov <saproj@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Heiko Schocher <hs@denx.de>

A late ack is currently being sent at the end of a transfer due to
incorrect logic in mchp_corei2c_empty_rx(). Currently the Assert Ack
bit is being written to the controller's control reg after the last
byte has been received, causing it to sent another byte with the ack.
Instead, the AA flag should be written to the control register when
the penultimate byte is read so it is sent out for the last byte.

Reported-by: Andreas Buerkler <andreas.buerkler@enclustra.com>
Fixes: 0dc0d1e094 ("i2c: Add Microchip PolarFire SoC I2C driver")
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Padmarao Begari <padmarao.begari@microchip.com>
Reviewed-by: Heiko Schocher <hs@denx.de>

Removed Tag by hs: Fixes: 0190d48488 ("i2c: microchip: fix ack sending logic")

"Master receive mode" was not correctly sending ACKs/NACKs in the
interrupt handler. Bring the handling of M_SLAR_ACK, M_RX_DATA_ACKED &
M_RX_DATA_NACKED in line with the Linux driver.

Fixes: 0dc0d1e094 ("i2c: Add Microchip PolarFire SoC I2C driver")
Reported-by: Shravan Chippa <shravan.chippa@microchip.com>
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Padmarao Begari <padmarao.begari@microchip.com>
Reviewed-by: Heiko Schocher <hs@denx.de>

This converts the following to Kconfig:
   CONFIG_SYS_I2C_INIT_BOARD

Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

This patch adds support for MediaTek I2C interface

Reviewed-by: Heiko Schocher <hs@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>

Signed-off-by: Tom Rini <trini@konsulko.com>

Globally replace all occurances of WATCHDOG_RESET() with schedule(),
which handles the HW_WATCHDOG functionality and the cyclic
infrastructure.

Signed-off-by: Stefan Roese <sr@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Tom Rini <trini@konsulko.com> [am335x_evm, mx6cuboxi, rpi_3,dra7xx_evm, pine64_plus, am65x_evm, j721e_evm]

These two device tree properties were not being applied.

Fixes: 1fd9eb68d6 ("i2c: stm32f7: move driver data of each instance in a privdata")
Signed-off-by: Jorge Ramirez-Ortiz <jorge@foundries.io>
Reviewed-by: Alain Volmat <alain.volmat@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
Reviewed-by: Heiko Schocher <hs@denx.de>
Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Tested-by: Patrick Delaunay <patrick.delaunay@foss.st.com>