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path: root/drivers/spi/spi-pxa2xx-pci.c (follow)
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2022-02-28spi: pxa2xx-pci: Constify struct pxa_spi_info variablesAndy Shevchenko1-5/+5
Now when there are no dynamical changes required, we may constify struct pxa_spi_info variables. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20220225172350.69797-11-andriy.shevchenko@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-02-28spi: pxa2xx-pci: Drop temporary storage use for a handful of membersAndy Shevchenko1-61/+49
Instead of using temporary storage, assign the values directly to the corresponding struct pxa2xx_spi_controller members. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20220225172350.69797-10-andriy.shevchenko@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-02-28spi: pxa2xx-pci: Extract pxa2xx_spi_pci_clk_register()Andy Shevchenko1-13/+22
Extract pxa2xx_spi_pci_clk_register() from ->probe() in order to reuse it later on for getting rid of max_clk_rate temporary storage. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20220225172350.69797-9-andriy.shevchenko@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-02-28spi: pxa2xx-pci: Drop unneeded checks in lpss_spi_setup()Andy Shevchenko1-14/+9
All of the LPSS devices are using DMA and set the parameters up, hence no need to test for that. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20220225172350.69797-8-andriy.shevchenko@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-02-28spi: pxa2xx-pci: Replace enum with direct use of PCI IDsAndy Shevchenko1-78/+83
Instead of creating an abstraction on top of PCI IDs, just use them directly. The corresponding enum can be dropped. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20220225172350.69797-7-andriy.shevchenko@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-02-28spi: pxa2xx-pci: Move max_clk_rate assignment to ->setup()Andy Shevchenko1-1/+2
Move max_clk_rate to the corresponding ->setup() function to unify with the rest. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20220225172350.69797-6-andriy.shevchenko@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-02-28spi: pxa2xx-pci: Move dma_burst_size assignment to ->setup()Andy Shevchenko1-2/+3
Instead of using conditional, move dma_burst_size to the corresponding ->setup() function. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20220225172350.69797-5-andriy.shevchenko@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-02-28spi: pxa2xx-pci: Move port_id assignment to ->setup()Andy Shevchenko1-4/+4
Instead of using conditional, move port_id to the corresponding ->setup() functions. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20220225172350.69797-4-andriy.shevchenko@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-02-28spi: pxa2xx-pci: Drop redundant NULL check in ->probe()Andy Shevchenko1-5/+3
Since all platforms are using ->setup() function, drop unneeded check. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20220225172350.69797-3-andriy.shevchenko@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-02-28spi: pxa2xx-pci: Refactor Quark X1000 to use ->setup()Andy Shevchenko1-2/+9
Refactor Quark X1000 handling code to use ->setup() instead of using the configuration data structure directly. It will allow to refactor further to avoid intermediate storage for the used configuration parameters. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20220225172350.69797-2-andriy.shevchenko@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-02-28spi: pxa2xx-pci: Refactor CE4100 to use ->setup()Andy Shevchenko1-4/+11
Refactor CE4100 handling code to use ->setup() instead of spreading potentially confusing conditional. Besides that, it will allow to refactor further to avoid intermediate storage for the used configuration parameters. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20220225172350.69797-1-andriy.shevchenko@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-02-24spi: pxa2xx-pci: Balance reference count for PCI DMA deviceAndy Shevchenko1-1/+16
The pci_get_slot() increases its reference count, the caller must decrement the reference count by calling pci_dev_put(). Fixes: 743485ea3bee ("spi: pxa2xx-pci: Do a specific setup in a separate function") Fixes: 25014521603f ("spi: pxa2xx-pci: Enable DMA for Intel Merrifield") Reported-by: Wang Qing <wangqing@vivo.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20220223191637.31147-1-andriy.shevchenko@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
2022-02-24spi: pxa2xx-pci: Do not dereference fwnode in struct deviceAndy Shevchenko1-1/+1
In order to make the underneath API easier to change in the future, prevent users from dereferencing fwnode from struct device. Instead, use the specific dev_fwnode() API for that. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20220223191948.31325-1-andriy.shevchenko@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
2021-05-21spi: pxa2xx: Fix inconsistent indentingJiapeng Chong1-1/+1
Eliminate the follow smatch warning: drivers/spi/spi-pxa2xx-pci.c:260 pxa2xx_spi_pci_probe() warn: inconsistent indenting. Reported-by: Abaci Robot <abaci@linux.alibaba.com> Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com> Link: https://lore.kernel.org/r/1621590465-73594-1-git-send-email-jiapeng.chong@linux.alibaba.com Signed-off-by: Mark Brown <broonie@kernel.org>
2021-05-18spi: pxa2xx: Fix style of and typos in the comments and messagesAndy Shevchenko1-2/+3
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>
2021-05-11spi: pxa2xx: Introduce special type for Merrifield SPIsAndy Shevchenko1-1/+1
Intel Merrifield SPI is actually more closer to PXA3xx. It has extended FIFO (32 bytes) and additional registers to get or set FIFO thresholds. Introduce new type for Intel Merrifield SPI host controllers and handle bigger FIFO size. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20210510124134.24638-15-andriy.shevchenko@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
2021-05-10spi: pxa2xx: Replace header inclusions by forward declarationsAndy Shevchenko1-0/+1
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>
2021-05-10spi: pxa2xx: Utilize struct device from struct ssp_deviceAndy Shevchenko1-0/+1
We have a duplication of struct device in the struct driver_data, get rid of it and reuse member from struct ssp_device instead. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20210423182441.50272-4-andriy.shevchenko@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
2021-03-24spi: pxa2xx: Fix checkpatch spacing errorsJay Fang1-1/+1
Fix checkpatch errors: ERROR: space prohibited before that ',' (ctx:WxW) #255: FILE: spi-pxa2xx-pci.c:255: + ssp->clk = clk_register_fixed_rate(&dev->dev, buf , NULL, 0, ^ ERROR: "foo* bar" should be "foo *bar" #621: FILE: spi-pxa2xx.c:621: +static void int_error_stop(struct driver_data *drv_data, const char* msg) Signed-off-by: Jay Fang <f.fangjian@huawei.com> Link: https://lore.kernel.org/r/1616566602-13894-4-git-send-email-f.fangjian@huawei.com Signed-off-by: Mark Brown <broonie@kernel.org>
2021-02-10spi: pxa2xx: Add IDs for the controllers found on Intel LynxpointAndy Shevchenko1-0/+2
Add IDs for the controllers found on Intel Lynxpoint. In particular it's Macbook Air 6,2 devices. Cc: Leif Liddy <leif.liddy@gmail.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20210208163816.22147-2-andriy.shevchenko@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
2021-02-10spi: pxa2xx: Fix the controller numbering for Wildcat PointAndy Shevchenko1-8/+19
Wildcat Point has two SPI controllers and added one is actually second one. Fix the numbering by adding the description of the first one. Fixes: caba248db286 ("spi: spi-pxa2xx-pci: Add ID and driver type for WildcatPoint PCH") Cc: Leif Liddy <leif.liddy@gmail.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20210208163816.22147-1-andriy.shevchenko@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
2019-05-21treewide: Add SPDX license identifier for more missed filesThomas Gleixner1-0/+1
Add SPDX license identifiers to all files which: - Have no license information of any form - Have MODULE_LICENCE("GPL*") inside which was used in the initial scan/conversion to ignore the file These files fall under the project license, GPL v2 only. The resulting SPDX license identifier is: GPL-2.0-only Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-03-20spi: pxa2xx: Introduce DMA burst size supportAndy Shevchenko1-0/+4
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>
2019-03-19spi: pxa2xx-pci: Drop unused header inclusionAndy Shevchenko1-1/+0
There is nothing in the driver which requires OF specific header to be included. Remove it for good. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Jarkko Nikula <jarkko.nikula@linux.intel.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-01-23pxa2xx: replace spi_master with spi_controllerLubomir Rintel1-2/+2
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>
2017-01-23spi: pca2xx-pci: Allow MSIJan Kiszka1-1/+7
Now that the core is ready for edge-triggered interrupts, we can safely allow the PCI versions that provide this to enable the feature and, thus, have less shared interrupts. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Jarkko Nikula <jarkko.nikula@linux.intel.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2017-01-04spi: pxa2xx-pci: Enable DMA for Intel MerrifieldAndy Shevchenko1-0/+24
SPI controller on Intel Merrifield is backed by DMA engine. Add necessary bits to support it. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-08-24spi: pxa2xx-pci: fix ACPI-based enumeration of SPI devicesAndy Shevchenko1-0/+1
Slave devices are not enumerated by ACPI data because the ACPI handle for the core driver is NULL if it was enumerated by PCI. Propagate firmware node handle of the PCI device to the platform device. Suggested-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-07-07spi: pxa2xx-pci: Support both chipselects on BraswellAndy Shevchenko1-3/+3
The commit 30f3a6ab44d8 ("spi: pxa2xx: Add support for both chip selects on Intel Braswell") introduces a support of chipselects for Intel Braswell SPI host controller. Though it missed to convert the PCI part of the driver. Do conversion here which enables both chipselects on Intel Braswell when enumerated via PCI. We don't care about num_chipselect value since it is overrided inside core driver. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-07-04spi: pxa2xx-pci: Sort header block alphabeticallyAndy Shevchenko1-6/+7
Simply sort header block alphabetically. While here, sort devices by PCI ID and add a copyright line for Intel. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-07-04spi: pxa2xx-pci: Remove unused codeAndy Shevchenko1-4/+0
pcim_iomap_table() can't fail when called after pcim_iomap_regions(). Moreover, we already dereference returned value and kernel will crash if it is not correct. Remove obvious leftover of commit 0202775bc3a2 ("spi/pxa2xx-pci: switch to use pcim_* interfaces"). Cc: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-07-04spi: pxa2xx-pci: Enable SPI on Intel MerrifieldAndy Shevchenko1-0/+28
The SPI controllers used on Intel Merrifield are PXA2XX compatible. This patch enables them. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-07-04spi: pxa2xx-pci: Do a specific setup in a separate functionAndy Shevchenko1-33/+44
Move LPSS specific setup to a separate function. It makes ->probe() cleaner as well as allows extend the driver for different variation of hardware in the future, e.g. for Intel Merrifield. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-05-24Merge tag 'spi-v4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spiLinus Torvalds1-2/+2
Pull spi updates from Mark Brown: "Another quiet release for SPI, almost entirely driver specific changes with the diffstat dominated by two new drivers which are about two thirds of it in terms of lines of code: - new drivers for PIC32 standard and SQI controllers - the Cadence driver has had runtime PM support added and quite a few fixes and cleanups - flash-specific accelerated path support now has a feature query interface - the pxa2xx driver has been moved to use the core DMA mapping support" * tag 'spi-v4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (48 commits) spi: pic32-sqi: Fix linker error, undefined reference to `bad_dma_ops' spi: dw-pci: Spelling s/paltforms/platforms/g spi: pic32-sqi: Remove pic32_sqi_setup and pic32_sqi_cleanup spi: Fix simple typo s/impelment/implement spi: rockchip: potential NULL dereference on error spi: zynqmp: disable clocks in error paths spi: Drop unnecessary dependencies on relaxed I/O accessors spi: qup: Add spi_master_put in remove function spi: qup: Handle clocks in pm_runtime suspend and resume spi: st-ssc4: Fix missing spi_master_put in spi_st_probe error paths spi: st-ssc4: Allow compile test build spi: omap2-mcspi: Use dma_request_chan() for requesting DMA channel spi: davinci: Use dma_request_chan() for requesting DMA channel spi: pic32: Fix checking return value of devm_ioremap_resource spi: spi-fsl-dspi: Update DT binding documentation spi: Drop duplicate code to set master->dev.parent spi: pic32: Set proper bits_per_word_mask spi: return error if kmap'd buffers passed to spi_map_buf() spi: core: add hook flash_read_supported to spi_master spi: pic32-sqi: silence array overflow warning ...
2016-04-20spi: spi-pxa2xx: Remove CLK_IS_ROOTStephen Boyd1-2/+2
This flag is a no-op now (see commit 47b0eeb3dc8a "clk: Deprecate CLK_IS_ROOT", 2016-02-02) so remove it. Cc: Daniel Mack <daniel@zonque.org> Cc: Haojian Zhuang <haojian.zhuang@gmail.com> Cc: Robert Jarzmik <robert.jarzmik@free.fr> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-04-13dmaengine: dw: rename masters to reflect actual topologyAndy Shevchenko1-4/+4
The source and destination masters are reflecting buses or their layers to where the different devices can be connected. The patch changes the master names to reflect which one is related to which independently on the transfer direction. The outcome of the change is that the memory data width is now always limited by a data width of the master which is dedicated to communicate to memory. The patch will not break anything since all current users have the same data width for all masters. Though it would be nice to revisit avr32 platforms to check what is the actual hardware topology in use there. It seems that it has one bus and two masters on it as stated by Table 8-2, that's why everything works independently on the master in use. The purpose of the sequential patch is to fix the driver for configuration of more than one bus. The change is done in the assumption that src_master and dst_master are reflecting a connection to the memory and peripheral correspondently on avr32 and otherwise on the rest. Acked-by: Hans-Christian Egtvedt <egtvedt@samfundet.no> Acked-by: Mark Brown <broonie@kernel.org> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-02-21spi: spi-pxa2xx-pci: Add ID and driver type for WildcatPoint PCHLeif Liddy1-0/+13
WildcatPoint PCH as seen on MacBook 12-inch (Early 2015) has a PCI enabled SPI controller. Enable it by adding its ID to the corresponding driver. The ACPI enumerated name for this SPI controller (found in spi-pxa2xx.c) is INT33C1. Therefore, we associate the SPI controller with the corresponding type of LPSS_LPT_SSP. Signed-off-by: Leif Liddy <leif.liddy@gmail.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2015-07-15spi: spi-pxa2xx: Remove clk.h includeStephen Boyd1-1/+0
Clock provider drivers generally shouldn't include clk.h because it's the consumer API. Remove the include here because this is a provider driver. Cc: Daniel Mack <daniel@zonque.org> Cc: Haojian Zhuang <haojian.zhuang@gmail.com> Cc: Robert Jarzmik <robert.jarzmik@free.fr> Cc: Mark Brown <broonie@kernel.org> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: Mark Brown <broonie@kernel.org>
2015-06-05spi: pxa2xx: Differentiate Intel LPSS typesJarkko Nikula1-4/+4
Intel LPSS SPI properties differ between between platforms. Now private registers offset 0x400 or 0x800 is autodetected but there is need to support also other offset and handle a few other differences. Prepare for that by splitting the LPSS_SSP type into compatible hardware types and set it now based on PCI or ACPI ID. That type will be used to set properties that differ between current and upcoming platforms. Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2014-11-26spi: spi-pxa2xx: SPI support for Intel Quark X1000Weike Chen1-0/+8
There are two SPI controllers exported by PCI subsystem for Intel Quark X1000. The SPI memory mapped I/O registers supported by Quark are different from the current implementation, and Quark only supports the registers of 'SSCR0', 'SSCR1', 'SSSR', 'SSDR', and 'DDS_RATE'. This patch is to enable the SPI for Intel Quark X1000. This piece of work is derived from Dan O'Donovan's initial work for Intel Quark X1000 SPI enabling. Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Weike Chen <alvin.chen@intel.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2014-10-18Merge branch 'for-linus' of git://git.infradead.org/users/vkoul/slave-dmaLinus Torvalds1-17/+84
Pull slave-dmaengine updates from Vinod Koul: "For dmaengine contributions we have: - designware cleanup by Andy - my series moving device_control users to dmanegine_xxx APIs for later removal of device_control API - minor fixes spread over drivers mainly mv_xor, pl330, mmp, imx-sdma etc" * 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma: (60 commits) serial: atmel: add missing dmaengine header dmaengine: remove FSLDMA_EXTERNAL_START dmaengine: freescale: remove FSLDMA_EXTERNAL_START control method carma-fpga: move to fsl_dma_external_start() carma-fpga: use dmaengine_xxx() API dmaengine: freescale: add and export fsl_dma_external_start() dmaengine: add dmaengine_prep_dma_sg() helper video: mx3fb: use dmaengine_terminate_all() API serial: sh-sci: use dmaengine_terminate_all() API net: ks8842: use dmaengine_terminate_all() API mtd: sh_flctl: use dmaengine_terminate_all() API mtd: fsmc_nand: use dmaengine_terminate_all() API V4L2: mx3_camer: use dmaengine_pause() API dmaengine: coh901318: use dmaengine_terminate_all() API pata_arasan_cf: use dmaengine_terminate_all() API dmaengine: edma: check for echan->edesc => NULL in edma_dma_pause() dmaengine: dw: export probe()/remove() and Co to users dmaengine: dw: enable and disable controller when needed dmaengine: dw: always export dw_dma_{en,dis}able dmaengine: dw: introduce dw_dma_on() helper ...
2014-09-18spi/pxa2xx-pci: Add support for Intel BraswellMika Westerberg1-0/+37
Instead of one port we have 3 ports and all of them can take advantage of the shared DMA controller. Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> Acked-by: Mark Brown <broonie@linaro.org> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2014-09-18spi/pxa2xx: Don't use slave_id of dma_slave_configMika Westerberg1-17/+47
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>
2014-08-19spi/pxa2xx-pci: remove unnecessary assignmentAndy Shevchenko1-1/+0
There is no need to unset driver data pointer at removal stage. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-08-16spi/pxa2xx-pci: Add common clock framework support in PCI glue layerChew, Chiau Ee1-1/+20
SPI PXA2XX core layer has dependency on common clock framework to obtain information on host supported clock rate. Thus, we setup the clock device in the PCI glue layer to enable PCI mode host pass in the clock rate information. Signed-off-by: Chew, Chiau Ee <chiau.ee.chew@intel.com> Acked-by: Kweh, Hock Leong <hock.leong.kweh@intel.com> Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-04-18spi/pxa2xx-pci: Add PCI mode support for BayTrail LPSS SPIChew, Chiau Ee1-15/+61
Similar to CE4100, BayTrail LPSS SPI can be PCI enumerated as well. Thus, the functions are renamed from ce4100_xxx to pxa2xx_spi_pci_xxx to clarify that this is a generic PCI glue layer. Also, added required infrastructure to support SPI hosts with different configurations. This patch is based on Mika Westerberg's previous work. Signed-off-by: Chew, Chiau Ee <chiau.ee.chew@intel.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-12-03spi: remove DEFINE_PCI_DEVICE_TABLE macroJingoo Han1-1/+1
Don't use DEFINE_PCI_DEVICE_TABLE macro, because this macro is not preferred. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-03-12spi/pxa2xx-pci: correct the return value check of pcim_iomap_regions()Mika Westerberg1-1/+1
The function returns 0 on success and negative errno in case of failure. Fix this. Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-03-12spi: fix return value check in ce4100_spi_probe()Wei Yongjun1-2/+2
In case of error, the function platform_device_register_full() returns ERR_PTR() and never returns NULL. The NULL test in the return value check should be replaced with IS_ERR(). Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-01-08spi/pxa2xx: embed the ssp_device to platform dataMika Westerberg1-68/+5
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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