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2014-10-19Merge branch 'for-linus' of git://git.infradead.org/users/vkoul/slave-dmaLinus Torvalds3-32/+86
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 ...
2014-10-10Merge tag 'pm+acpi-3.18-rc1' of ↵Linus Torvalds1-5/+8
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull ACPI and power management updates from Rafael Wysocki: "Features-wise, to me the most important this time is a rework of wakeup interrupts handling in the core that makes them work consistently across all of the available sleep states, including suspend-to-idle. Many thanks to Thomas Gleixner for his help with this work. Second is an update of the generic PM domains code that has been in need of some care for quite a while. Unused code is being removed, DT support is being added and domains are now going to be attached to devices in bus type code in analogy with the ACPI PM domain. The majority of work here was done by Ulf Hansson who also has been the most active developer this time. Apart from this we have a traditional ACPICA update, this time to upstream version 20140828 and a few ACPI wakeup interrupts handling patches on top of the general rework mentioned above. There also are several cpufreq commits including renaming the cpufreq-cpu0 driver to cpufreq-dt, as this is what implements generic DT-based cpufreq support, and a new DT-based idle states infrastructure for cpuidle. In addition to that, the ACPI LPSS driver is updated, ACPI support for Apple machines is improved, a few bugs are fixed and a few cleanups are made all over. Finally, the Adaptive Voltage Scaling (AVS) subsystem now has a tree maintained by Kevin Hilman that will be merged through the PM tree. Numbers-wise, the generic PM domains update takes the lead this time with 32 non-merge commits, second is cpufreq (15 commits) and the 3rd place goes to the wakeup interrupts handling rework (13 commits). Specifics: - Rework the handling of wakeup IRQs by the IRQ core such that all of them will be switched over to "wakeup" mode in suspend_device_irqs() and in that mode the first interrupt will abort system suspend in progress or wake up the system if already in suspend-to-idle (or equivalent) without executing any interrupt handlers. Among other things that eliminates the wakeup-related motivation to use the IRQF_NO_SUSPEND interrupt flag with interrupts which don't really need it and should not use it (Thomas Gleixner and Rafael Wysocki) - Switch over ACPI to handling wakeup interrupts with the help of the new mechanism introduced by the above IRQ core rework (Rafael Wysocki) - Rework the core generic PM domains code to eliminate code that's not used, add DT support and add a generic mechanism by which devices can be added to PM domains automatically during enumeration (Ulf Hansson, Geert Uytterhoeven and Tomasz Figa). - Add debugfs-based mechanics for debugging generic PM domains (Maciej Matraszek). - ACPICA update to upstream version 20140828. Included are updates related to the SRAT and GTDT tables and the _PSx methods are in the METHOD_NAME list now (Bob Moore and Hanjun Guo). - Add _OSI("Darwin") support to the ACPI core (unfortunately, that can't really be done in a straightforward way) to prevent Thunderbolt from being turned off on Apple systems after boot (or after resume from system suspend) and rework the ACPI Smart Battery Subsystem (SBS) driver to work correctly with Apple platforms (Matthew Garrett and Andreas Noever). - ACPI LPSS (Low-Power Subsystem) driver update cleaning up the code, adding support for 133MHz I2C source clock on Intel Baytrail to it and making it avoid using UART RTS override with Auto Flow Control (Heikki Krogerus). - ACPI backlight updates removing the video_set_use_native_backlight quirk which is not necessary any more, making the code check the list of output devices returned by the _DOD method to avoid creating acpi_video interfaces that won't work and adding a quirk for Lenovo Ideapad Z570 (Hans de Goede, Aaron Lu and Stepan Bujnak) - New Win8 ACPI OSI quirks for some Dell laptops (Edward Lin) - Assorted ACPI code cleanups (Fabian Frederick, Rasmus Villemoes, Sudip Mukherjee, Yijing Wang, and Zhang Rui) - cpufreq core updates and cleanups (Viresh Kumar, Preeti U Murthy, Rasmus Villemoes) - cpufreq driver updates: cpufreq-cpu0/cpufreq-dt (driver name change among other things), ppc-corenet, powernv (Viresh Kumar, Preeti U Murthy, Shilpasri G Bhat, Lucas Stach) - cpuidle support for DT-based idle states infrastructure, new ARM64 cpuidle driver, cpuidle core cleanups (Lorenzo Pieralisi, Rasmus Villemoes) - ARM big.LITTLE cpuidle driver updates: support for DT-based initialization and Exynos5800 compatible string (Lorenzo Pieralisi, Kevin Hilman) - Rework of the test_suspend kernel command line argument and a new trace event for console resume (Srinivas Pandruvada, Todd E Brandt) - Second attempt to optimize swsusp_free() (hibernation core) to make it avoid going through all PFNs which may be way too slow on some systems (Joerg Roedel) - devfreq updates (Paul Bolle, Punit Agrawal, Ãrjan Eide). - rockchip-io Adaptive Voltage Scaling (AVS) driver and AVS entry update in MAINTAINERS (Heiko Stübner, Kevin Hilman) - PM core fix related to clock management (Geert Uytterhoeven) - PM core's sysfs code cleanup (Johannes Berg)" * tag 'pm+acpi-3.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (105 commits) ACPI / fan: printk replacement PM / clk: Fix crash in clocks management code if !CONFIG_PM_RUNTIME PM / Domains: Rename cpu_data to cpuidle_data cpufreq: cpufreq-dt: fix potential double put of cpu OF node cpufreq: cpu0: rename driver and internals to 'cpufreq_dt' PM / hibernate: Iterate over set bits instead of PFNs in swsusp_free() cpufreq: ppc-corenet: remove duplicate update of cpu_data ACPI / sleep: Rework the handling of ACPI GPE wakeup from suspend-to-idle PM / sleep: Rename platform suspend/resume functions in suspend.c PM / sleep: Export dpm_suspend_late/noirq() and dpm_resume_early/noirq() ACPICA: Introduce acpi_enable_all_wakeup_gpes() ACPICA: Clear all non-wakeup GPEs in acpi_hw_enable_wakeup_gpe_block() ACPI / video: check _DOD list when creating backlight devices PM / Domains: Move dev_pm_domain_attach|detach() to pm_domain.h cpufreq: Replace strnicmp with strncasecmp cpufreq: powernv: Set the cpus to nominal frequency during reboot/kexec cpufreq: powernv: Set the pstate of the last hotplugged out cpu in policy->cpus to minimum cpufreq: Allow stop CPU callback to be used by all cpufreq drivers PM / devfreq: exynos: Enable building exynos PPMU as module PM / devfreq: Export helper functions for drivers ...
2014-10-07Merge branch 'pm-domains'Rafael J. Wysocki1-5/+8
* pm-domains: (32 commits) PM / Domains: Rename cpu_data to cpuidle_data PM / Domains: Move dev_pm_domain_attach|detach() to pm_domain.h PM / Domains: Remove legacy API for adding devices through DT PM / Domains: Add genpd attach/detach callbacks PM / Domains: add debugfs listing of struct generic_pm_domain-s ACPI / PM: Convert acpi_dev_pm_detach() into a static function ARM: exynos: Move to generic PM domain DT bindings amba: Add support for attach/detach of PM domains spi: core: Convert to dev_pm_domain_attach|detach() mmc: sdio: Convert to dev_pm_domain_attach|detach() i2c: core: Convert to dev_pm_domain_attach|detach() drivercore / platform: Convert to dev_pm_domain_attach|detach() PM / Domains: Add APIs to attach/detach a PM domain for a device PM / Domains: Add generic OF-based PM domain look-up ACPI / PM: Assign the ->detach() callback when attaching the PM domain PM / Domains: Add a detach callback to the struct dev_pm_domain PM / domains: Spelling s/domian/domain/ PM / domains: Keep declaration of dev_power_governors together PM / domains: Remove default_stop_ok() API drivers: sh: Leave disabling of unused PM domains to genpd ...
2014-10-03Merge remote-tracking branch 'spi/topic/xilinx' into spi-nextMark Brown1-1/+0
2014-10-03Merge remote-tracking branches 'spi/topic/pl022', 'spi/topic/pxa2xx', ↵Mark Brown6-108/+193
'spi/topic/rspi', 'spi/topic/sh-msiof' and 'spi/topic/sirf' into spi-next
2014-10-03Merge remote-tracking branches 'spi/topic/fsl-dspi', 'spi/topic/imx', ↵Mark Brown5-37/+375
'spi/topic/mxs', 'spi/topic/omap-100k' and 'spi/topic/orion' into spi-next
2014-10-03Merge remote-tracking branches 'spi/topic/davinci', 'spi/topic/doc', ↵Mark Brown11-142/+178
'spi/topic/dw' and 'spi/topic/fsl' into spi-next
2014-10-03Merge remote-tracking branches 'spi/topic/bcm53xx', 'spi/topic/cadence', ↵Mark Brown15-46/+418
'spi/topic/checkpatch' and 'spi/topic/clps711x' into spi-next
2014-10-03Merge remote-tracking branch 'spi/topic/dma-dep' into spi-nextMark Brown1-2/+5
2014-10-03Merge remote-tracking branch 'spi/topic/core' into spi-nextMark Brown1-17/+28
2014-10-03Merge remote-tracking branch 'spi/fix/rockchip' into spi-linusMark Brown1-8/+7
2014-10-03spi: spi-mxs: fix a tiny typo in a commentMichael Heimpold1-1/+1
Signed-off-by: Michael Heimpold <mhei@heimpold.de> Signed-off-by: Mark Brown <broonie@kernel.org>
2014-10-02spi: dw-mid: follow new DMAengine workflowAndy Shevchenko1-2/+6
Though intel-mid-dma does not follow a new DMA workflow (*) let's prepare SPI DW driver for that. (*) The client is obliged to call dma_async_issue_pending() which starts the actual transfers. Old DMA drivers do not follow this, since requirement was introduced in the discussion of [1]. [1] http://www.spinics.net/lists/arm-kernel/msg125987.html Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2014-10-02spi: dw-mid: convert to use DMAengine wrappersAndy Shevchenko1-12/+7
Instead of direct dereference to dmaengine callbacks we are going to use DMAengine wrappers. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2014-10-02spi: dw-mid: change magic numbers to the constantsAndy Shevchenko2-2/+6
Instead of using magic numbers in the code we create a bit map definition of the DMACR register and use it. There is no functional change. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2014-10-01spi: orion: support armada extended baud ratesGreg Ungerer1-22/+94
The Armada SoC family implementation of this SPI hardware module has extended the configuration register to allow for a wider range of SPI clock rates. Specifically the Serial Baud Rate Pre-selection bits in the SPI Interface Configuration Register now also use bits 6 and 7 as well. Modify the baud rate calculation to handle these differences for the Armada case. Potentially a baud rate can be setup using a number of different pre-scalar and scalar combinations. This code tries all possible pre-scalar divisors (8 in total) to try and find the most accurate set. This change introduces (and documents) a new device tree compatible device name "armada-370-spi" to support this. Signed-off-by: Greg Ungerer <gerg@uclinux.org> Tested-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com> Reviewed-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2014-09-30PM / Domains: Move dev_pm_domain_attach|detach() to pm_domain.hUlf Hansson1-0/+1
The commit 46420dd73b80 (PM / Domains: Add APIs to attach/detach a PM domain for a device) started using errno values in pm.h header file. It also failed to include the header for these, thus it caused compiler errors. Instead of including the errno header to pm.h, let's move the functions to pm_domain.h, since it's a better match. Fixes: 46420dd73b80 (PM / Domains: Add APIs to attach/detach a PM domain for a device) Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Acked-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Wolfram Sang <wsa@the-dreams.de> Acked-by: Mark Brown <broonie@kernel.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-09-29spi: fsl: Sort include headers alphabeticallyXiubo Li5-36/+36
Sort all the include headers alphabetically for the freescale spi drivers. If the inlcude headers sorted out of order, maybe the best logical choice is to append new ones after the exist ones, while this may create a lot of potential for duplicates and conflicts for each diffenent changes will add new headers in the same location. Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2014-09-26spi: bcm53xx: Add missing module informationAxel Lin1-0/+4
Mainly to fix missing MODULE_LICENSE. Also add MODULE_DESCRIPTION and MODULE_AUTHOR. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2014-09-26spi: bcm53xx: Fix module dependencyAxel Lin1-0/+2
config SPI_BCM53XX needs to depend on BCMA_POSSIBLE and select BCMA. This fixes below build error: ERROR: "bcma_driver_unregister" [drivers/spi/spi-bcm53xx.ko] undefined! ERROR: "__bcma_driver_register" [drivers/spi/spi-bcm53xx.ko] undefined! Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2014-09-25spi/rockchip: fix bug that cause the failure to read data in DMA modeAddy Ke1-8/+7
In my test on RK3288-pinky board, if spi is enabled, it will begin to read data from slave regardless of whether the DMA is ready. So we need prepare DMA before spi is enable. Signed-off-by: Addy Ke <addy.ke@rock-chips.com> Signed-off-by: Mark Brown <broonie@kernel.org> Cc: stable@vger.kernel.org
2014-09-25spi: fsl-dspi: Remove probe info messageAlexander Stein1-1/+0
Remove the probe info message which also has wrong output. No need to add KERN_INFO to pr_info. Output was: 6Freescale DSPI master initialized Signed-off-by: Alexander Stein <alexander.stein@systec-electronic.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2014-09-24spi: pl022: Add support for chip select extensionAnders Berg1-1/+58
Add support for a extended PL022 which has an extra register for controlling up to five chip select signals. This controller is found on the AXM5516 SoC. Unfortunately the PrimeCell identification registers are identical to a standard ARM PL022. To work around this, the peripheral ID must be overridden in the device tree using the "arm,primecell-periphid" property with the value 0x000b6022. Signed-off-by: Anders Berg <anders.berg@avagotech.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Mark Brown <broonie@kernel.org>
2014-09-24spi: Fix possible ZERO_SIZE_PTR pointer dereferencing error.Xiubo Li1-0/+3
Since we cannot make sure the 'n' will always be none zero here, and then if either equal to zero, the kzalloc() will return ZERO_SIZE_PTR, which equals to ((void *)16). So this patch fix this with just doing the zero check before calling kzalloc(). Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2014-09-24spi: dw: fix style of code in few placesAndy Shevchenko1-4/+3
Make comments be surrounded by spaces and move part of code to one line where it suits 80 characters. There is no functional changes. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2014-09-24spi: dw: introduce support of loopback modeAndy Shevchenko1-1/+4
For testing purposes it's good to have a loopback mode enabled. The patch adds necessary bits for that. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2014-09-24spi: dw-mid: terminate ongoing transfers at exitAndy Shevchenko1-0/+4
Do full clean up at exit, means terminate all ongoing DMA transfers. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Mark Brown <broonie@kernel.org> Cc: stable@vger.kernel.org
2014-09-24spi: dw-mid: respect 8 bit modeAndy Shevchenko1-2/+2
In case of 8 bit mode and DMA usage we end up with every second byte written as 0. We have to respect bits_per_word settings what this patch actually does. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Mark Brown <broonie@kernel.org> Cc: stable@vger.kernel.org
2014-09-24spi: clps711x: Migrate to the new clk subsystemAlexander Shiyan1-32/+2
Currently clps711x arch have a fully functional CLK driver. This patch migrates clps711x-spi driver to use the new CLK subsystem. Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Mark Brown <broonie@kernel.org>
2014-09-22spi: core: Convert to dev_pm_domain_attach|detach()Ulf Hansson1-5/+7
Previously only the ACPI PM domain was supported by the spi bus. Let's convert to the common attach/detach functions for PM domains, which currently means we are extending the support to include the generic PM domain as well. Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Reviewed-by: Kevin Hilman <khilman@linaro.org> Reviewed-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-09-18spi: pl022: Add missing error check for devm_kzallocKiran Padwal1-0/+5
Currently this driver is missing a check on the return value of devm_kzalloc, which would cause a NULL pointer dereference in a OOM situation. This patch adds a missing check. Signed-off-by: Kiran Padwal <kiran.padwal@smartplayin.com> Signed-off-by: Mark Brown <broonie@kernel.org>
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 Westerberg3-32/+49
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>
2014-09-17spi: spi-imx: add DMA supportRobin Gong1-6/+280
Enable DMA support on i.mx6. The read speed can increase from 600KB/s to 1.2MB/s on i.mx6q. You can disable or enable dma function in dts. If not set "dma-names" in dts, spi will use PIO mode. This patch only validate on i.mx6, not i.mx5, but encourage ones to apply this patch on i.mx5 since they share the same IP. Note: Sometime, there is a weid data in rxfifo after one full tx/rx transfer finish by DMA on i.mx6dl, so we disable dma functhion on i.mx6dl. Signed-off-by: Frank Li <Frank.Li@freescale.com> Signed-off-by: Robin Gong <b38343@freescale.com> Acked-by: Marek Vasut <marex@denx.de> Signed-off-by: Mark Brown <broonie@kernel.org>
2014-09-17Merge remote-tracking branches 'spi/fix/davinci', 'spi/fix/dw', ↵Mark Brown7-26/+62
'spi/fix/fsl', 'spi/fix/pl022', 'spi/fix/rockchip' and 'spi/fix/sirf' into spi-linus
2014-09-16spi: davinci: add support for adding delay between word's transmissionsMurali Karicheri1-7/+48
This patch adds ability to configure delay between transmission of words over SPI bus if it's required by SPI slave devices. New optional SPI slave property: - ti,spi-word-delay : delay between transmission of words (SPIFMTn.WDELAY, SPIDAT1.WDEL) Signed-off-by: Murali Karicheri <m-karicheri2@ti.com> Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2014-09-16spi: davinci: remove empty function davinci_spi_cleanupGrygorii Strashko1-5/+0
Remove empty function davinci_spi_cleanup(). Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2014-09-13spi: davinci: request cs_gpio's from probeGrygorii Strashko1-9/+25
Now CS GPIOs are requested from struct spi_master.setup() callback and that causes failures when Client SPI device is getting accessed through SPIDEV driver. The failure happens, because .setup() callback may be called many times from IOCTL handler and when it's called second time gpio_request() will fail and return -EBUSY. Hence, fix it by moving CS GPIOs requesting code in .probe(). Reported-by: Murali Karicheri <m-karicheri2@ti.com> Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2014-09-13spi: dw: don't use mrst prefix anymoreAndy Shevchenko1-17/+15
Since driver is used on other platforms and debugfs stuff would be useful there as well let's substitute mrst_ by dw_ where it suits. Additionally let's use SPI master device name when print registers dump. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2014-09-13Merge branch 'topic/checkpatch' of ↵Mark Brown9-13/+36
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi into spi-dw
2014-09-13spi: dw-mid: remove FSF address and update copyrightAndy Shevchenko1-5/+1
The FSF address is subject to change, thus remove it from the file. While here, update a copyright line. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2014-09-13spi: dw-mid: remove redundant dmac memberAndy Shevchenko2-5/+8
Instead of using that member we prefer to use dma_dev which represents actual struct device of the DMA device. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2014-09-13spi: dw-mid: remove Moorestown supportAndy Shevchenko2-6/+4
The support of the Moorestown was removed [1] from kernel long time ago. This is just a follow up of that change. [1] http://www.spinics.net/lists/platform-driver-x86/msg02948.html Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2014-09-13spi: dw-mid: check that DMA was inited before exitAndy Shevchenko1-0/+2
If the driver was compiled with DMA support, but DMA channels weren't acquired by some reason, mid_spi_dma_exit() will crash the kernel. Fixes: 7063c0d942a1 (spi/dw_spi: add DMA support) Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2014-09-13spi: dw: remove FSF addressAndy Shevchenko2-7/+3
There is no need to keep FSF address in the head of the file. While here, fix few typos in the header. There is no functional change. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2014-09-09spi/pl022: Fix error messageRoland Stigge1-1/+1
This patch fixes an error message typo ("not" missing). Signed-off-by: Roland Stigge <stigge@antcom.de> Signed-off-by: Mark Brown <broonie@linaro.org>
2014-09-05spi/rockchip: Don't warn if SPI is busy but disabledDoug Anderson1-1/+2
The reference manual from Rockchip claims this about the BSF (SPI Busy Flag): * 0 - SPI is idle or disabled * 1 - SPI is actively transferring data The above doesn't quite appear to be true. Specifically I found the busy bit set when SPI was disabled. Let's change the WARN_ON() so we only check the busy bit if the controller was enabled. Signed-off-by: Doug Anderson <dianders@chromium.org> Signed-off-by: Mark Brown <broonie@kernel.org>
2014-09-05spi/rockchip: Fix the wait_for_idle() timeoutDoug Anderson1-1/+1
The wait_for_idle() could get unlucky and timeout too quickly. Specifically, the old calculation was effectively: timeout = jiffies + 1; if (jiffies >= timeout) print warning; From the above it should be obvious that if jiffies ticks in just the wrong place then we'll have an effective timeout of 0. Fix this by effectively changing the above ">=" to a ">". That gives us an extra jiffy to finish. Signed-off-by: Doug Anderson <dianders@chromium.org> Signed-off-by: Mark Brown <broonie@kernel.org>
2014-09-05spi: sirf: cleanup the indentation of marcosQipan Li1-8/+8
let "#define" statement keep same indentation. the old code layout is pretty ugly. Signed-off-by: Qipan Li <Qipan.Li@csr.com> Signed-off-by: Barry Song <Baohua.Song@csr.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2014-09-05spi: sirf: add fifo reset/start for cmd transferQipan Li1-0/+2
for command mode spi transfer, HW spec requires to do fifo reset work to clear FIFO status. Signed-off-by: Qipan Li <Qipan.Li@csr.com> Signed-off-by: Barry Song <Baohua.Song@csr.com> Signed-off-by: Mark Brown <broonie@kernel.org>
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