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path: root/drivers/i2c/busses/i2c-opal.c
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2019-05-24treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 114Thomas Gleixner
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 8 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Richard Fontana <rfontana@redhat.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190523091650.663497195@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-24i2c: opal: don't check number of messages in the driverWolfram Sang
Since commit 1eace8344c02 ("i2c: add param sanity check to i2c_transfer()") and b7f625840267 ("i2c: add quirk checks to core"), the I2C core does this check now. We can remove it here. Signed-off-by: Wolfram Sang <wsa@the-dreams.de> Reviewed-by: Peter Rosin <peda@axentia.se>
2017-08-29i2c: busses: make i2c_adapter_quirks constBhumika Goyal
Make these const as they are only stored as a reference in the quirks field of an i2c_adapter structure, which is const. Done using Coccinelle. Signed-off-by: Bhumika Goyal <bhumirks@gmail.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2016-06-29powerpc/opal: Add inline function to get rc from an ASYNC_COMP opal_msgSuraj Jitindar Singh
An opal_msg of type OPAL_MSG_ASYNC_COMP contains the return code in the params[1] struct member. However this isn't intuitive or obvious when reading the code and requires that a user look at the skiboot documentation or opal-api.h to verify this. Add an inline function to get the return code from an opal_msg and update call sites accordingly. Signed-off-by: Suraj Jitindar Singh <sjitindarsingh@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2015-03-14i2c: opal: Update quirk flags to do write-then-anythingNeelesh Gupta
Hardware can do write-then-anything. Activate that. Signed-off-by: Neelesh Gupta <neelegup@linux.vnet.ibm.com> [wsa: cosmetic updates] Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2015-03-13i2c: opal: make use of the new infrastructure for quirksWolfram Sang
Signed-off-by: Wolfram Sang <wsa@the-dreams.de> Tested-by: Neelesh Gupta <neelegup@linux.vnet.ibm.com>
2014-12-14i2c: Driver to expose PowerNV platform i2c bussesNeelesh Gupta
The patch exposes the available i2c busses on the PowerNV platform to the kernel and implements the bus driver to support i2c and smbus commands. The driver uses the platform device infrastructure to probe the busses on the platform and registers them with the i2c driver framework. Signed-off-by: Neelesh Gupta <neelegup@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Wolfram Sang <wsa@the-dreams.de> (I2C part, excluding the bindings) Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>