Commit Graph

14 Commits

Author SHA1 Message Date
Thomas Gleixner 1ccea77e2a treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13
Based on 2 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 if not see http www gnu org licenses

  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 [based]
  [from] [clk] [highbank] [c] you should have received a copy of the
  gnu general public license along with this program if not see http
  www gnu org licenses

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 355 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Jilayne Lovejoy <opensource@jilayne.com>
Reviewed-by: Steve Winslow <swinslow@gmail.com>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190519154041.837383322@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-21 11:28:45 +02:00
Hoan Tran da24b8240f i2c: xgene-slimpro: Support v2
This patch supports xgene-slimpro-i2c v2 which uses the non-cachable memory
as the PCC shared memory.

Signed-off-by: Hoan Tran <hotran@apm.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2017-11-01 23:54:53 +01:00
Arnd Bergmann 063345aede i2c: xgene-slimpro: include linux/io.h for memremap
The newly added support for the pcc mailbox fails to build
in some configurations:

drivers/i2c/busses/i2c-xgene-slimpro.c: In function 'xgene_slimpro_i2c_probe':
drivers/i2c/busses/i2c-xgene-slimpro.c:516:25: error: implicit declaration of function 'memremap'; did you mean 'memcmp'? [-Werror=implicit-function-declaration]
drivers/i2c/busses/i2c-xgene-slimpro.c:518:13: error: 'MEMREMAP_WB' undeclared (first use in this function)
drivers/i2c/busses/i2c-xgene-slimpro.c:518:13: note: each undeclared identifier is reported only once for each function it appears in

This includes the missing header file.

Fixes: df5da47fe7 ("i2c: xgene-slimpro: Add ACPI support by using PCC mailbox")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Hoan Tran <hotran@apm.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2017-06-18 14:59:45 +02:00
Hoan Tran df5da47fe7 i2c: xgene-slimpro: Add ACPI support by using PCC mailbox
This patch adds ACPI support by using PCC mailbox communication
interface.

Signed-off-by: Hoan Tran <hotran@apm.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2017-06-02 22:27:25 +02:00
Hoan Tran d140bd42b2 i2c: xgene-slimpro: Use a single function to send command message
This patch refactors the code to use a single message function to
send command message.

Signed-off-by: Hoan Tran <hotran@apm.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2017-06-02 22:21:21 +02:00
Tin Huynh 83345d51a4 i2c: xgene: Set ACPI_COMPANION_I2C
With ACPI, i2c-core requires ACPI companion to be set in order for it
to create slave device.
This patch sets the ACPI companion accordingly.

Signed-off-by: Tin Huynh <tnhuynh@apm.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2017-05-17 09:21:06 +02:00
Bhumika Goyal 92d9d0dfb0 i2c: busses: constify i2c_algorithm structures
Declare i2c_algorithm structures as const as they are only stored in the
algo field of an i2c_adapter structure. This field is of type const, so
i2c_algorithm structures having this property can be made const too.

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> for
Acked-by: Patrice Chotard <patrice.chotard@st.com>
Acked-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Acked-by: Ludovic Desroches <ludovic.desroches@microchip.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2017-02-09 17:06:52 +01:00
Tin Huynh 1635c5d04e i2c: xgene: Fix missing code of DTB support
In DTB case, i2c-core doesn't create slave device which is installed
on i2c-xgene bus because of missing code in this driver.
This patch fixes this issue.

Signed-off-by: Tin Huynh <tnhuynh@apm.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2016-12-17 19:35:41 +01:00
Hoan Tran 603616017c i2c: xgene: Avoid dma_buffer overrun
SMBus block command uses the first byte of buffer for the data length.
The dma_buffer should be increased by 1 to avoid the overrun issue.

Reported-by: Phil Endecott <phil_gjouf_endecott@chezphil.org>
Signed-off-by: Hoan Tran <hotran@apm.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Cc: stable@kernel.org
2016-10-25 11:50:52 +02:00
Wolfram Sang ea734404f3 i2c: don't print error when adding adapter fails
The core will do this for us now.

Signed-off-by: Wolfram Sang <wsa-dev@sang-engineering.com>
Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com>
Acked-by: Peter Korsgaard <peter@korsgaard.com>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Acked-by: Ray Jui <ray.jui@broadcom.com>
Acked-by: Vladimir Zapolskiy <vz@mleia.com>
Acked-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Acked-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2016-08-22 08:19:55 +02:00
Dan Carpenter a4a9a8cb32 i2c: xgene-slimpro: dma_mapping_error() doesn't return an error code
The dma_mapping_error() function returns true if there is an error, it
doesn't return an error code.  We should return -ENOMEM.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Cc: stable@kernel.org
2015-08-24 14:23:31 +02:00
Axel Lin 724948106e i2c: xgene-slimpro: Fix missing mbox_free_channel call in probe error path
Free requested mailbox channel before return error.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2015-07-09 22:13:10 +02:00
Feng Kan d845340394 i2c: busses: xgene-slimpro: fix incorrect __init declation for probe
Fix section mismatch error during kernel build for xgene_slimpro_i2c_probe
function. It was incorrectly defined with __init declaration.

Signed-off-by: Feng Kan <fkan@apm.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2015-06-10 22:17:34 +09:00
Feng Kan f6505fbabc i2c: add SLIMpro I2C device driver on APM X-Gene platform
Add SLIMpro I2C device driver on APM X-Gene platform. This I2C
device driver use the SLIMpro Mailbox driver to tunnel message to
the SLIMpro coprocessor to do the work of accessing I2C components.

Signed-off-by: Feng Kan <fkan@apm.com>
Signed-off-by: Hieu Le <hnle@apm.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2015-05-12 22:06:05 +02:00