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path: root/drivers/i2c/busses/i2c-xgene-slimpro.c (follow)
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2017-11-01i2c: xgene-slimpro: Support v2Hoan Tran1-4/+26
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>
2017-06-18i2c: xgene-slimpro: include linux/io.h for memremapArnd Bergmann1-0/+1
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: df5da47fe722 ("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>
2017-06-02i2c: xgene-slimpro: Add ACPI support by using PCC mailboxHoan Tran1-13/+161
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>
2017-06-02i2c: xgene-slimpro: Use a single function to send command messageHoan Tran1-41/+26
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>
2017-05-17i2c: xgene: Set ACPI_COMPANION_I2CTin Huynh1-0/+1
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>
2017-02-09i2c: busses: constify i2c_algorithm structuresBhumika Goyal1-1/+1
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>
2016-12-17i2c: xgene: Fix missing code of DTB supportTin Huynh1-0/+1
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>
2016-10-25i2c: xgene: Avoid dma_buffer overrunHoan Tran1-1/+1
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
2016-08-22i2c: don't print error when adding adapter failsWolfram Sang1-1/+0
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>
2015-08-24i2c: xgene-slimpro: dma_mapping_error() doesn't return an error codeDan Carpenter1-4/+4
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
2015-07-09i2c: xgene-slimpro: Fix missing mbox_free_channel call in probe error pathAxel Lin1-0/+1
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>
2015-06-10i2c: busses: xgene-slimpro: fix incorrect __init declation for probeFeng Kan1-1/+1
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>
2015-05-12i2c: add SLIMpro I2C device driver on APM X-Gene platformFeng Kan1-0/+469
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>
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