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path: root/drivers/spi/spi-pxa2xx-pci.c
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* spi: pxa2xx: Differentiate Intel LPSS typesJarkko Nikula2015-06-051-4/+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>
* spi: spi-pxa2xx: SPI support for Intel Quark X1000Weike Chen2014-11-261-0/+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>
* Merge branch 'for-linus' of git://git.infradead.org/users/vkoul/slave-dmaLinus Torvalds2014-10-181-17/+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 ...
| * spi/pxa2xx-pci: Add support for Intel BraswellMika Westerberg2014-09-181-0/+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>
| * spi/pxa2xx: Don't use slave_id of dma_slave_configMika Westerberg2014-09-181-17/+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>
* | spi/pxa2xx-pci: remove unnecessary assignmentAndy Shevchenko2014-08-191-1/+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>
* spi/pxa2xx-pci: Add common clock framework support in PCI glue layerChew, Chiau Ee2014-08-161-1/+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>
* spi/pxa2xx-pci: Add PCI mode support for BayTrail LPSS SPIChew, Chiau Ee2014-04-181-15/+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>
* spi: remove DEFINE_PCI_DEVICE_TABLE macroJingoo Han2013-12-031-1/+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>
* spi/pxa2xx-pci: correct the return value check of pcim_iomap_regions()Mika Westerberg2013-03-121-1/+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>
* spi: fix return value check in ce4100_spi_probe()Wei Yongjun2013-03-121-2/+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>
* spi/pxa2xx: embed the ssp_device to platform dataMika Westerberg2013-01-081-68/+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>
* spi/pxa2xx-pci: switch to use pcim_* interfacesMika Westerberg2013-01-081-56/+30
| | | | | | | | | | | | | | | Instead of open-coding all the error management in the driver we can take advantage of the pcim_* interfaces that release the resources automatically. We also use platform_device_register_full() to register the platform device because it allows us to create and register the platform device at one go, simplifying the error management. This a preparatory step for getting rid of pxa_ssp_request()/free() which we will do in the next patch. Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* spi: Remove HOTPLUG section attributesGrant Likely2012-12-071-3/+3
| | | | | | | | | | | | | | CONFIG_HOTPLUG is going away as an option. As result the __dev* markings will be going away. Remove use of __devinit, __devexit_p, __devinitdata, __devinitconst, and __devexit. Bill Pemberton has done most of the legwork on this series. I've used his script to purge the attributes from the drivers/gpio tree. Reported-by: Bill Pemberton <wfp5p@virginia.edu> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
* spi: use module_pci_driverAxel Lin2012-04-101-11/+1
| | | | | | | | This patch converts the drivers in drivers/spi/* to use module_pci_driver() macro which makes the code smaller and a bit simpler. Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
* spi: Convert to DEFINE_PCI_DEVICE_TABLEAxel Lin2012-03-091-1/+1
| | | | | | | | Convert static struct pci_device_id *[] to static DEFINE_PCI_DEVICE_TABLE tables. Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
* spi: Add module.h to implicit users in drivers/spiPaul Gortmaker2011-10-311-0/+1
| | | | | | | | We are clipping down the presence of module.h, since it was everywhere. If you really need it, you better call it out, as per this changeset. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
* spi: reorganize driversGrant Likely2011-06-061-0/+180
Sort the SPI makefile and enforce the naming convention spi_*.c for spi drivers. This change also rolls the contents of atmel_spi.h into the .c file since there is only one user of that particular include file. v2: - Use 'spi-' prefix instead of 'spi_' to match what seems to be be the predominant pattern for subsystem prefixes. - Clean up filenames in Kconfig and header comment blocks Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Acked-by: Wolfram Sang <w.sang@pengutronix.de> Acked-by: Linus Walleij <linus.walleij@linaro.org>
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-25 19:41:11 +0000