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3d4dd10b |
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08-Feb-2024 |
Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> |
spi: pxa2xx: Use typedef for dma_filter_fn Use existing typedef for dma_filter_fn to avoid duplicating type definition. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20240208202154.630336-3-krzysztof.kozlowski@linaro.org Signed-off-by: Mark Brown <broonie@kernel.org>
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60ba4431 |
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18-Aug-2023 |
Yang Yingliang <yangyingliang@huawei.com> |
spi: pxa2xx: switch to use modern name Change legacy name master/slave to modern name host/target or controller. No functional changed. Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Link: https://lore.kernel.org/r/20230818093154.1183529-8-yangyingliang@huawei.com Signed-off-by: Mark Brown <broonie@kernel.org>
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31455bbd |
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24-Jan-2022 |
Linus Walleij <linus.walleij@linaro.org> |
spi: pxa2xx_spi: Convert to use GPIO descriptors This converts the PXA2xx SPI driver to use GPIO descriptors exclusively to retrieve GPIO chip select lines. The device tree and ACPI paths of the driver already use descriptors, hence ->use_gpio_descriptors is already set and this codepath is well tested. Convert all the PXA boards providing chip select GPIOs as platform data and drop the old GPIO chipselect handling in favor of the core managing it exclusively. Cc: Marek Vasut <marek.vasut@gmail.com> Cc: Daniel Mack <daniel@zonque.org> Cc: Haojian Zhuang <haojian.zhuang@gmail.com> Cc: Robert Jarzmik <robert.jarzmik@free.fr> Cc: linux-arm-kernel@lists.infradead.org Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20220125005836.494807-1-linus.walleij@linaro.org Signed-off-by: Mark Brown <broonie@kernel.org>
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8393961c |
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23-Nov-2021 |
Andy Shevchenko <andriy.shevchenko@linux.intel.com> |
spi: pxa2xx: Get rid of unused enable_loopback member There is no user of the enable_loopback member in the struct pxa2xx_spi_chip. Remote this legacy member completely. The mentioned in the documentation the testing phase can be performed with spidev_test tool. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20211123192723.44537-3-andriy.shevchenko@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
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a9c8f68c |
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23-Nov-2021 |
Andy Shevchenko <andriy.shevchenko@linux.intel.com> |
spi: pxa2xx: Get rid of unused ->cs_control() Since the last user of the custom ->cs_control() gone, we may get rid of this legacy API completely. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20211123192723.44537-2-andriy.shevchenko@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
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8083d6b8 |
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17-May-2021 |
Andy Shevchenko <andriy.shevchenko@linux.intel.com> |
spi: pxa2xx: Fix style of and typos in the comments and messages Fix style of the comments and messages along with typos in them. While at it, update Intel Copyright year. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20210517140351.901-8-andriy.shevchenko@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
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5edc2490 |
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23-Apr-2021 |
Andy Shevchenko <andriy.shevchenko@linux.intel.com> |
spi: pxa2xx: Unify ifdeffery used in the headers The two headers have quite different ifdeffery to prevent multiple inclusion. Unify them with the pattern that in particular reflects their location. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20210423182441.50272-6-andriy.shevchenko@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
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0e476871 |
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23-Apr-2021 |
Andy Shevchenko <andriy.shevchenko@linux.intel.com> |
spi: pxa2xx: Replace header inclusions by forward declarations When the data structure is only referred by pointer, compiler may not need to see the contents of the data type. Thus, we may replace header inclusions by respective forward declarations. Due to above add missed headers as well. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20210423182441.50272-5-andriy.shevchenko@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
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c942fddf |
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27-May-2019 |
Thomas Gleixner <tglx@linutronix.de> |
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 Based on 3 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 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 [author] [kishon] [vijay] [abraham] [i] [kishon]@[ti] [com] 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 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 [author] [graeme] [gregory] [gg]@[slimlogic] [co] [uk] [author] [kishon] [vijay] [abraham] [i] [kishon]@[ti] [com] [based] [on] [twl6030]_[usb] [c] [author] [hema] [hk] [hemahk]@[ti] [com] 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 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 1105 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Richard Fontana <rfontana@redhat.com> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070033.202006027@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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37821a82 |
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19-Mar-2019 |
Andy Shevchenko <andriy.shevchenko@linux.intel.com> |
spi: pxa2xx: Introduce DMA burst size support Some masters may have different DMA burst size than hard coded default. In such case respect the value given by DMA burst size provided via platform data. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Tested-by: Jarkko Nikula <jarkko.nikula@linux.intel.com> Reviewed-by: Jarkko Nikula <jarkko.nikula@linux.intel.com> Signed-off-by: Mark Brown <broonie@kernel.org>
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51eea52d |
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16-Jan-2019 |
Lubomir Rintel <lkundrak@v3.sk> |
pxa2xx: replace spi_master with spi_controller It's also a slave controller driver now, calling it "master" is slightly misleading. Signed-off-by: Lubomir Rintel <lkundrak@v3.sk> Acked-by: Robert Jarzmik <robert.jarzmik@free.fr> Signed-off-by: Mark Brown <broonie@kernel.org>
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ec93cb6f |
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13-Nov-2018 |
Lubomir Rintel <lkundrak@v3.sk> |
spi: pxa2xx: Add slave mode support Tested on an OLPC XO-1.75 machine, where the Embedded Controller happens to be a SPI master. Signed-off-by: Lubomir Rintel <lkundrak@v3.sk> Acked-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Mark Brown <broonie@kernel.org>
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5cfc5220 |
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18-Sep-2015 |
Jarkko Nikula <jarkko.nikula@linux.intel.com> |
ARM: pxa: Remove unused clock_enable field from struct pxa2xx_spi_master Use for struct pxa2xx_spi_master clock_enable field was removed years ago from the pxa2xx-spi driver by the commit 2f1a74e5a2de ("[ARM] pxa: make pxa2xx_spi driver use ssp_request()/ssp_free()"). Therefore remove it from structure definition, documentation and from couple affected board files. Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com> Acked-by: Mark Brown <broonie@kernel.org> Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
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9064bf3c |
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03-Feb-2015 |
Rob Herring <robh@kernel.org> |
spi: spi-pxa2xx: only include mach/dma.h for legacy DMA Move the include of mach/dma.h to the legacy PXA DMA code where it is used. This enables building spi-pxa2xx on ARM64. Signed-off-by: Rob Herring <robh@kernel.org> Signed-off-by: Mark Brown <broonie@kernel.org>
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2c658e21 |
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18-Dec-2014 |
Jarkko Nikula <jarkko.nikula@linux.intel.com> |
spi: Remove FSF mailing addresses Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com> Signed-off-by: Mark Brown <broonie@kernel.org>
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b729bf34 |
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19-Aug-2014 |
Mika Westerberg <mika.westerberg@linux.intel.com> |
spi/pxa2xx: Don't use slave_id of dma_slave_config That field has been deprecated in favour of getting the necessary information from ACPI/DT. However, we still need to deal systems that are PCI only (no ACPI to back up). In order to support such systems, we allow the DMA filter function and its corresponding parameter via pxa2xx_spi_master platform data. Then when the pxa2xx_spi_dma_setup() doesn't find the channel via ACPI, it falls back to use the given filter function. Suggested-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Mark Brown <broonie@linaro.org> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
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a0d2642e |
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21-Jan-2013 |
Mika Westerberg <mika.westerberg@linux.intel.com> |
spi/pxa2xx: add support for Intel Low Power Subsystem SPI Intel LPSS SPI is pretty much the same as the PXA27xx SPI except that it has few additional features over the original: o FIFO depth is 256 entries o RX FIFO has one watermark o TX FIFO has two watermarks, low and high o chip select can be controlled by writing to a register The new FIFO registers follow immediately the PXA27xx registers but then there are some additional LPSS private registers at offset 1k or 2k from the base address. For these private registers we add new accessors that take advantage of drv_data->lpss_base once it is resolved. We add a new type LPSS_SSP that can be used to distinguish the LPSS devices from others. Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> Tested-by: Lu Cao <lucao@marvell.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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5928808e |
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21-Jan-2013 |
Mika Westerberg <mika.westerberg@linux.intel.com> |
spi/pxa2xx: add support for DMA engine To be able to use DMA with this driver on non-PXA platforms we implement support for the generic DMA engine API. This lets user to use different DMA engines with little or no modification to the driver. Request lines and channel numbers can be passed to the driver from the platform specific data. The DMA engine implementation will be selected by default even on PXA platform. User can select the legacy DMA API by enabling Kconfig option CONFIG_SPI_PXA2XX_PXADMA. Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Tested-by: Lu Cao <lucao@marvell.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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cd7bed00 |
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21-Jan-2013 |
Mika Westerberg <mika.westerberg@linux.intel.com> |
spi/pxa2xx: break out the private DMA API usage into a separate file The PXA SPI driver uses PXA platform specific private DMA implementation which does not work on non-PXA platforms. In order to use this driver on other platforms we break out the private DMA implementation into a separate file that gets compiled only when CONFIG_SPI_PXA2XX_PXADMA is set. The DMA functions are stubbed out if there is no DMA implementation selected (i.e we are building on non-PXA platform). While we are there we can kill the dummy DMA bits in pxa2xx_spi.h as they are not needed anymore for CE4100. Once this is done we can add the generic DMA engine support to the driver that allows usage of any DMA controller that implements DMA engine API. Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Tested-by: Lu Cao <lucao@marvell.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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3343b7a6 |
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21-Jan-2013 |
Mika Westerberg <mika.westerberg@linux.intel.com> |
spi/pxa2xx: convert to the common clk framework Convert clk_enable() to clk_prepare_enable() and clk_disable() to clk_disable_unprepare() respectively in order to support the common clk framework. Otherwise we get warnings on the console as the clock is not prepared before it is enabled. In addition we must cache the maximum clock rate to drv_data->max_clk_rate at probe time because clk_get_rate() cannot be called in tasklet context. Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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851bacf5 |
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06-Jan-2013 |
Mika Westerberg <mika.westerberg@linux.intel.com> |
spi/pxa2xx: embed the ssp_device to platform data The spi-pxa2xx-pci glue driver had to implement pxa_ssp_request()/free() in order to support the spi-pxa2xx platform driver. Since the ACPI enabled platforms can use the same platform driver we would need to implement pxa_ssp_request()/free() in some central place that can be shared by the ACPI and PCI glue code. Instead of doing that we can make pxa_ssp_request()/free() to be available only when CONFIG_ARCH_PXA is set. On other arches these are being stubbed out in preference to passing the ssp_device from the platform data directly. We also change the SPI bus number to be taken from ssp->port_id instead of platform device id. This way the supporting code that passes the ssp can decide the number (or it can set it to the same as pdev->id). Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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60172215 |
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03-Jun-2012 |
Qiao Zhou <zhouqiao@marvell.com> |
ARM: MMP: add pxa910-ssp into ssp_id_table 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>
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d6ea3df0 |
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24-Nov-2010 |
Sebastian Andrzej Siewior <bigeasy@linutronix.de> |
spi/pxa2xx: Add CE4100 support Sodaville's SPI controller is very much the same as in PXA25x. The difference: - The RX/TX FIFO is only 4 words deep instead of 16 - No DMA support - The SPI controller offers a CS functionality Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Dirk Brandewie <dirk.brandewie@gmail.com>
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8348c259 |
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22-Nov-2010 |
Sebastian Andrzej Siewior <bigeasy@linutronix.de> |
arm/pxa2xx: reorgazine SSP and SPI header files 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>
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