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path: root/arch/arm/plat-pxa/ssp.c
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2019-10-18spi: pxa2xx: No need to keep pointer to platform deviceAndy Shevchenko
There is no need to keep a pointer to the platform device. Currently there are no users of it directly, and if there will be in the future we may restore it from pointer to the struct device. Convert all users at the same time. Cc: Russell King <linux@armlinux.org.uk> Cc: Jaroslav Kysela <perex@perex.cz> Cc: Takashi Iwai <tiwai@suse.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20191018105429.82782-1-andriy.shevchenko@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
2019-06-19treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500Thomas Gleixner
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 version 2 as published by the free software foundation this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation # extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 4122 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Enrico Weigelt <info@metux.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-14ARM: pxa: ssp: Fix "WARNING: invalid free of devm_ allocated data"YueHaibing
Since commit 1c459de1e645 ("ARM: pxa: ssp: use devm_ functions") kfree, iounmap, clk_put etc are not needed anymore in remove path. Fixes: 1c459de1e645 ("ARM: pxa: ssp: use devm_ functions") Signed-off-by: YueHaibing <yuehaibing@huawei.com> [ commit message spelling fix ] Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
2019-01-23ARM: pxa: ssp: unneeded to free devm_ allocated dataPeng Hao
devm_ allocated data will be automatically freed. The free of devm_ allocated data is invalid. Fixes: 1c459de1e645 ("ARM: pxa: ssp: use devm_ functions") Signed-off-by: Peng Hao <peng.hao2@zte.com.cn> [title's prefix changed] Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
2018-06-18ARM: pxa: change SSP DMA channels allocationRobert Jarzmik
Now the dma_slave_map is available for PXA architecture, switch the SSP device to it. This specifically means that : - for platform data based machines, the DMA requestor channels are extracted from the slave map, where pxa-ssp-dai.<N> is a 1-1 match to ssp.<N>, and the channels are either "rx" or "tx". - for device tree platforms, the dma node should be hooked into the pxa2xx-ac97 or pxa-ssp-dai node. Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr> Acked-by: Daniel Mack <daniel@zonque.org>
2015-12-01ARM: mmp: make plat-pxa build standaloneArnd Bergmann
The ssp.c driver in plat-pxa is the only remaining file including a mach/*.h header from mmp. It actually doesn't need mach/hardware.h at all, so we can remove the #include. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2015-09-13ARM: pxa: ssp: Fix build error by removing originally incorrect DT bindingJarkko Nikula
Commit 03fbf488cece ("spi: pxa2xx: Differentiate Intel LPSS types") caused build error here because it removed the type LPSS_SSP and I didn't notice the type was used here too. I believe commit a6e56c28a178 ("ARM: pxa: ssp: add DT bindings") added it accidentally by copying all enum pxa_ssp_type types from include/linux/pxa2xx_ssp.h even LPSS_SSP was for Intel LPSS SPI devices. Fix the build error by removing this incorrect binding. Fixes: 03fbf488cece ("spi: pxa2xx: Differentiate Intel LPSS types") Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com> Reported-by: Axel Lin <axel.lin@ingics.com> Cc: <stable@vger.kernel.org> # 4.2 Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
2014-10-20ARM: plat-pxa: drop owner assignment from platform_driversWolfram Sang
A platform_driver does not need to set an owner, it will be populated by the driver core. Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2014-09-19ARM: pxa: ssp: provide platform_device_id for PXA3xxDaniel Mack
Provide an explicit match string for PXA3xx SSP ports. Without this match string, SSP0/SSP1/SSP2 in PXA3xxx will be consided as PXA27x SSP Port. Signed-off-by: Daniel Mack <zonque@gmail.com> Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
2013-09-09ARM: pxa: ssp: Check return values from phandle lookupsOlof Johansson
Commit a6e56c28a178cef5f (ARM: pxa: ssp: add DT bindings) causes warnings when built: arch/arm/plat-pxa/ssp.c: In function 'pxa_ssp_probe': arch/arm/plat-pxa/ssp.c:145:17: warning: 'dma_spec.args[0]' may be used uninitialized in this function [-Wmaybe-uninitialized] Resolve by checking return values and aborting when lookups fail. Cc: Daniel Mack <zonque@gmail.com> Cc: Mark Brown <broonie@linaro.org> Cc: Haojian Zhuang <haojian.zhuang@gmail.com> Signed-off-by: Olof Johansson <olof@lixom.net>
2013-08-14ARM: pxa: ssp: add pxa_ssp_request_of()Daniel Mack
Add a function to lookup ssp devices from device tree. This way, users can reference the ssp devices in order to register to them. Signed-off-by: Daniel Mack <zonque@gmail.com> Acked-by: Haojian Zhuang <haojian.zhuang@gmail.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-08-14ARM: pxa: ssp: use devm_ functionsDaniel Mack
Use devm_ functions to allocate memory, ioremap, clk_get etc to clean up the error unwind path. Signed-off-by: Daniel Mack <zonque@gmail.com> Acked-by: Haojian Zhuang <haojian.zhuang@gmail.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-08-14ARM: pxa: ssp: add DT bindingsDaniel Mack
This patch contains an ugly hack for looking up the the DMA request number. The problem here is that the implementation as it stands will allocate the DMA channel from the user of the ssp port, and hence we cannot allocate a real channel here. Signed-off-by: Daniel Mack <zonque@gmail.com> Acked-by: Haojian Zhuang <haojian.zhuang@gmail.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-08-14ARM: pxa: ssp: add shortcut for &pdev->devDaniel Mack
No functional change, just a cosmetic cleanup. Signed-off-by: Daniel Mack <zonque@gmail.com> Acked-by: Haojian Zhuang <haojian.zhuang@gmail.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-08-14ARM: pxa: ssp: remove unnecessary warning on kzalloc() failureDaniel Mack
The memory subsystem will already complain loudly enough in such cases. Signed-off-by: Daniel Mack <zonque@gmail.com> Acked-by: Haojian Zhuang <haojian.zhuang@gmail.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-01-03ARM: drivers: remove __dev* attributes.Greg Kroah-Hartman
CONFIG_HOTPLUG is going away as an option. As a result, the __dev* markings need to be removed. This change removes the use of __devinit, __devexit_p, __devinitdata, and __devexit from these drivers. Based on patches originally written by Bill Pemberton, but redone by me in order to handle some of the coding style issues better, by hand. Cc: Bill Pemberton <wfp5p@virginia.edu> Cc: Russell King <linux@arm.linux.org.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-06-11ARM: MMP: add pxa910-ssp into ssp_id_tableQiao Zhou
add pxa910-ssp into ssp_id_table, and fix pxa-ssp compiling issue under mach-mmp architect. Signed-off-by: Qiao Zhou <zhouqiao@marvell.com> Acked-by: Haojian Zhuang <haojian.zhuang@gmail.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2010-12-01arm/pxa2xx: reorgazine SSP and SPI header filesSebastian Andrzej Siewior
The PXA-SPI driver relies on some files / defines which are arm specific and are within the ARM tree. The CE4100 SoC which is x86 has also the SPI core. This patch moves the ssp and spi files from arm/mach-pxa and plat-pxa to include/linux where the CE4100 can access them. This move got verified by building the following defconfigs: cm_x2xx_defconfig corgi_defconfig em_x270_defconfig ezx_defconfig imote2_defconfig pxa3xx_defconfig spitz_defconfig zeus_defconfig raumfeld_defconfig magician_defconfig Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Dirk Brandewie <dirk.brandewie@gmail.com>
2010-05-11[ARM] pxa: add namespace on sspHaojian Zhuang
In order to prevent code ambiguous, add namespace on functions in ssp driver. Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
2010-05-11[ARM] pxa: use resource_size() in ssp.cJulia Lawall
Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
2010-05-11[ARM] pxa: avoid NULL dereferencing in error handling of ssp.cJulia Lawall
The assignments of res to the results of the two calls to platform_get_resource make it impossible to use res in the error handling code in the arguments to release_mem_region. The semantic match that finds the former problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @r exists@ expression E, E1; identifier f; statement S1,S3; iterator iter; @@ if ((E == NULL && ...) || ...) { ... when != false ((E == NULL && ...) || ...) when != true ((E != NULL && ...) || ...) when != iter(E,...) S1 when != E = E1 ( sizeof(E->f) | * E->f ) ... when any return ...; } else S3 // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
2010-05-11[ARM] mmp: support ssp in pxa168Haojian Zhuang
Support ssp devices in PXA168. PXA168 could reuse the code of PXA SSP. Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com> Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
2010-05-11[ARM] pxa: move ssp into common plat-pxaHaojian Zhuang
Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
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