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2020-04-21ARM: samsung: Use devm_platform_ioremap_resource() to simplify codeTang Bin
Use devm_platform_ioremap_resource() instead of platform_get_resource() + devm_ioremap_resource(). Signed-off-by: Shengju Zhang <zhangshengju@cmss.chinamobile.com> Signed-off-by: Tang Bin <tangbin@cmss.chinamobile.com> Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-04-21ARM: samsung: Omit superfluous error message in s3c_adc_probe()Tang Bin
In the function s3c_adc_probe(), when get irq failed, the function platform_get_irq() logs an error message, so remove redundant message here. Signed-off-by: Shengju Zhang <zhangshengju@cmss.chinamobile.com> Signed-off-by: Tang Bin <tangbin@cmss.chinamobile.com> Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-01-07ARM: samsung: Rename Samsung and Exynos to lowercaseKrzysztof Kozlowski
Fix up inconsistent usage of upper and lowercase letters in "Samsung" and "Exynos" names. "SAMSUNG" and "EXYNOS" are not abbreviations but regular trademarked names. Therefore they should be written with lowercase letters starting with capital letter. The lowercase "Exynos" name is promoted by its manufacturer Samsung Electronics Co., Ltd., in advertisement materials and on website. Although advertisement materials usually use uppercase "SAMSUNG", the lowercase version is used in all legal aspects (e.g. on Wikipedia and in privacy/legal statements on https://www.samsung.com/semiconductor/privacy-global/). Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2019-10-28ARM: s3c: Rename s5p_usb_phy functionsKrzysztof Kozlowski
The name s5p_usb_phy_init() suggests it is shared with S5Pv210 platform, but it is not. It is specific to S3C64xx, so make it clear in the name. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2019-09-09ARM: samsung: Fix system restart on S3C6410Lihua Yao
S3C6410 system restart is triggered by watchdog reset. Cc: <stable@vger.kernel.org> Fixes: 9f55342cc2de ("ARM: dts: s3c64xx: Fix infinite interrupt in soft mode") Signed-off-by: Lihua Yao <ylhuajnu@outlook.com> Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2019-08-21ARM: s3c64xx: squash samsung_usb_phy.h into setup-usb-phy.cMasahiro Yamada
This is only used by arch/arm/mach-s3c64xx/setup-usb-phy.c $ git grep samsung_usb_phy_type include/linux/usb/samsung_usb_phy.h:enum samsung_usb_phy_type { $ git grep USB_PHY_TYPE_DEVICE arch/arm/mach-s3c64xx/setup-usb-phy.c: if (type == USB_PHY_TYPE_DEVICE) arch/arm/mach-s3c64xx/setup-usb-phy.c: if (type == USB_PHY_TYPE_DEVICE) include/linux/usb/samsung_usb_phy.h: USB_PHY_TYPE_DEVICE, $ git grep USB_PHY_TYPE_HOST include/linux/usb/samsung_usb_phy.h: USB_PHY_TYPE_HOST, Actually, 'enum samsung_usb_phy_type' is unused; the 'type' parameter has 'int' type. Anyway, there is no need to declare this enum in the globally visible header. Squash the header. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2019-08-15ARM: samsung: Include GPIO driver headerLinus Walleij
This file is using struct gpio_chip and needs to include <linux/gpio/driver.h> to get that. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2019-07-15docs: arm: convert docs to ReST and rename to *.rstMauro Carvalho Chehab
Converts ARM the text files to ReST, preparing them to be an architecture book. The conversion is actually: - add blank lines and identation in order to identify paragraphs; - fix tables markups; - add some lists markups; - mark literal blocks; - adjust title markups. At its new index.rst, let's add a :orphan: while this is not linked to the main index.rst file, in order to avoid build warnings. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Reviewed-by Corentin Labbe <clabbe.montjoie@gmail.com> # For sun4i-ss
2018-11-18ARM: samsung: Limit SAMSUNG_PM_DEBUG config option to non-Exynos platformsBartlomiej Zolnierkiewicz
"Samsung PM Suspend debug" feature (controlled by SAMSUNG_PM_DEBUG config option) is not working properly (debug messages are not displayed after resume) on Exynos platforms because GPIOs restore code is not implemented. Add PLAT_S3C24XX, ARCH_S3C64XX and ARCH_S5PV210 dependencies to SAMSUNG_PM_DEBUG config option to hide it on Exynos platforms. Then convert Exynos code to not require <plat/pm-common.h> header (use pr_debug() directly instead of S3C_PMDBG() macro and remove redundant s3c_pm_*() calls). Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2018-10-01ARM: samsung: Limit SAMSUNG_PM_CHECK config option to non-Exynos platformsBartlomiej Zolnierkiewicz
"S3C2410 PM Suspend Memory CRC" feature (controlled by SAMSUNG_PM_CHECK config option) is incompatible with highmem (uses phys_to_virt() instead of proper mapping) which is used by the majority of Exynos boards. The issue manifests itself in OOPS on affected boards, i.e. on Odroid-U3 I got the following one: Unable to handle kernel paging request at virtual address f0000000 pgd = 1c0f9bb4 [f0000000] *pgd=00000000 Internal error: Oops: 5 [#1] PREEMPT SMP ARM [<c0458034>] (crc32_le) from [<c0121f8c>] (s3c_pm_makecheck+0x34/0x54) [<c0121f8c>] (s3c_pm_makecheck) from [<c0121efc>] (s3c_pm_run_res+0x74/0x8c) [<c0121efc>] (s3c_pm_run_res) from [<c0121ecc>] (s3c_pm_run_res+0x44/0x8c) [<c0121ecc>] (s3c_pm_run_res) from [<c01210b8>] (exynos_suspend_enter+0x64/0x148) [<c01210b8>] (exynos_suspend_enter) from [<c018893c>] (suspend_devices_and_enter+0x9ec/0xe74) [<c018893c>] (suspend_devices_and_enter) from [<c0189534>] (pm_suspend+0x770/0xc04) [<c0189534>] (pm_suspend) from [<c0186ce8>] (state_store+0x6c/0xcc) [<c0186ce8>] (state_store) from [<c09db434>] (kobj_attr_store+0x14/0x20) [<c09db434>] (kobj_attr_store) from [<c02fa63c>] (sysfs_kf_write+0x4c/0x50) [<c02fa63c>] (sysfs_kf_write) from [<c02f97a4>] (kernfs_fop_write+0xfc/0x1e4) [<c02f97a4>] (kernfs_fop_write) from [<c027b198>] (__vfs_write+0x2c/0x140) [<c027b198>] (__vfs_write) from [<c027b418>] (vfs_write+0xa4/0x160) [<c027b418>] (vfs_write) from [<c027b5d8>] (ksys_write+0x40/0x8c) [<c027b5d8>] (ksys_write) from [<c0101000>] (ret_fast_syscall+0x0/0x28) Add PLAT_S3C24XX, ARCH_S3C64XX and ARCH_S5PV210 dependencies to SAMSUNG_PM_CHECK config option to hide it on Exynos platforms. Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2018-07-08headers: fix build error in arch/arm/plat-samsung/adc.c, add ↵Randy Dunlap
<linux/mod_devicetable.h> arch/arm/plat-samsung/adc.c needs to #include <linux/mod_devicetable.h> explicitly since that header file was removed from <linux/platform_device.h> (it wasn't needed there). Reported-by: kbuild test robot <lkp@intel.com> Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-13ARM: exynos: Remove static mapping of SCU SFRPankaj Dubey
Lets remove static mapping of SCU SFR mainly used in CORTEX-A9 SoC based boards. Instead use mapping from device tree node of SCU. Signed-off-by: Pankaj Dubey <pankaj.dubey@samsung.com> Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com> [mszyprow: rebased, added fallback to scu_a9_get_base() when no SCU DT node is available, removed compatibility break warning, fixed non-SMP build, keep SCU base mapping to avoid issues with calls from CPUidle] Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2018-04-21ARM: samsung: simplify getting .drvdataWolfram Sang
We should get drvdata from struct device directly. Going via platform_device is an unneeded step back and forth. Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2018-01-03ARM: SAMSUNG: Add SPDX license identifiersKrzysztof Kozlowski
Replace GPL license statements with SPDX license identifiers (GPL-1.0+, GPL-2.0 and GPL-2.0+). Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2017-11-16Merge tag 'armsoc-soc' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC platform updates from Arnd Bergmann: "Most of the commits are for defconfig changes, to enable newly added drivers or features that people have started using. For the changed lines lines, we have mostly cleanups, the affected platforms are OMAP, Versatile, EP93xx, Samsung, Broadcom, i.MX, and Actions. The largest single change is the introduction of the TI "sysc" bus driver, with the intention of cleaning up more legacy code. Two new SoC platforms get added this time: - Allwinner R40 is a modernized version of the A20 chip, now with a Quad-Core ARM Cortex-A7. According to the manufacturer, it is intended for "Smart Hardware" - Broadcom Hurricane 2 (Aka Strataconnect BCM5334X) is a family of chips meant for managed gigabit ethernet switches, based around a Cortex-A9 CPU. Finally, we gain SMP support for two platforms: Renesas R-Car E2 and Amlogic Meson8/8b, which were previously added but only supported uniprocessor operation" * tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (118 commits) ARM: multi_v7_defconfig: Select RPMSG_VIRTIO as module ARM: multi_v7_defconfig: enable CONFIG_GPIO_UNIPHIER arm64: defconfig: enable CONFIG_GPIO_UNIPHIER ARM: meson: enable MESON_IRQ_GPIO in Kconfig for meson8b ARM: meson: Add SMP bringup code for Meson8 and Meson8b ARM: smp_scu: allow the platform code to read the SCU CPU status ARM: smp_scu: add a helper for powering on a specific CPU dt-bindings: Amlogic: Add Meson8 and Meson8b SMP related documentation ARM: OMAP3: Delete an unnecessary variable initialisation in omap3xxx_hwmod_init() ARM: OMAP3: Use common error handling code in omap3xxx_hwmod_init() ARM: defconfig: select the right SX150X driver arm64: defconfig: Enable QCOM_IOMMU arm64: Add ThunderX drivers to defconfig arm64: defconfig: Enable Tegra PCI controller cpufreq: imx6q: Move speed grading check to cpufreq driver arm64: defconfig: re-enable Qualcomm DB410c USB ARM: configs: stm32: Add MDMA support in STM32 defconfig ARM: imx: Enable cpuidle for i.MX6DL starting at 1.1 bus: ti-sysc: Fix unbalanced pm_runtime_enable by adding remove bus: ti-sysc: mark PM functions as __maybe_unused ...
2017-10-12treewide: Fix typos in KconfigMasanari Iida
This patch fixes some spelling typos found in Kconfig files. Signed-off-by: Masanari Iida <standby24x7@gmail.com> Acked-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2017-10-04ARM: SAMSUNG: Simplify size used for kzallocMarkus Elfring
Simplify the size argument of kzalloc() memory allocation by using sizeof(*ptr) syntax in adc.c and devs.c. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> [krzk: Rewrite commit message] Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2017-10-04ARM: SAMSUNG: Remove printk for failed memory allocationMarkus Elfring
Omit an extra message for a memory allocation failure in adc.c and platformdata.c. This issue was detected by using the Coccinelle software. Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2017-07-20ARM: s3c24xx: Remove non-existing CONFIG_CPU_S3C2413Krzysztof Kozlowski
There is no CONFIG_CPU_S3C2413 so get rid of it. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2017-03-28dmaengine: pl330: remove pdata based initializationMarek Szyprowski
This driver is now used only on platforms which support device tree, so it is safe to remove legacy platform data based initialization code. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org> Acked-by: Arnd Bergmann <arnd@arndb.de> For plat-samsung: Acked-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-12-29ARM: SAMSUNG: Constify array of wake irqs passed to samsung_sync_wakemaskKrzysztof Kozlowski
The samsung_sync_wakemask() iterates over passed array of wake irqs but does not modify it. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
2016-12-29ARM: s3c24xx: Drop unused struct s3c_audio_pdata entriesSylwester Nawrocki
The s3c24xx-iis driver is now converted to use the dma_slave_map API and the samsung-ac97 driver got removed from the tree so remove the unused platform data structure instances. Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2016-12-15Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhostLinus Torvalds
Pull virtio updates from Michael Tsirkin: "virtio, vhost: new device, fixes, speedups This includes the new virtio crypto device, and fixes all over the place. In particular enabling endian-ness checks for sparse builds found some bugs which this fixes. And it appears that everyone is in agreement that disabling endian-ness sparse checks shouldn't be necessary any longer. So this enables them for everyone, and drops the __CHECK_ENDIAN__ and __bitwise__ APIs. IRQ handling in virtio has been refactored somewhat, the larger switch to IRQ_SHARED will have to wait as it proved too aggressive" * tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: (34 commits) Makefile: drop -D__CHECK_ENDIAN__ from cflags fs/logfs: drop __CHECK_ENDIAN__ Documentation/sparse: drop __CHECK_ENDIAN__ linux: drop __bitwise__ everywhere checkpatch: replace __bitwise__ with __bitwise Documentation/sparse: drop __bitwise__ tools: enable endian checks for all sparse builds linux/types.h: enable endian checks for all sparse builds virtio_mmio: Set dev.release() to avoid warning vhost: remove unused feature bit virtio_ring: fix description of virtqueue_get_buf vhost/scsi: Remove unused but set variable tools/virtio: use {READ,WRITE}_ONCE() in uaccess.h vringh: kill off ACCESS_ONCE() tools/virtio: fix READ_ONCE() crypto: add virtio-crypto driver vhost: cache used event for better performance vsock: lookup and setup guest_cid inside vhost_vsock_lock virtio_pci: split vp_try_to_find_vqs into INTx and MSI-X variants virtio_pci: merge vp_free_vectors into vp_del_vqs ...
2016-12-16linux: drop __bitwise__ everywhereMichael S. Tsirkin
__bitwise__ used to mean "yes, please enable sparse checks unconditionally", but now that we dropped __CHECK_ENDIAN__ __bitwise is exactly the same. There aren't many users, replace it by __bitwise everywhere. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Stefan Schmidt <stefan@osg.samsung.com> Acked-by: Krzysztof Kozlowski <krzk@kernel.org> Akced-by: Lee Duncan <lduncan@suse.com>
2016-11-17ARM: s3c64xx: Drop unused DMA fields from struct s3c64xx_spi_csinfoSylwester Nawrocki
There is no drivers using those fields so remove them and the remaining initializations. Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Tested-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Acked-by: Krzysztof Kozlowski <krzk@kernel.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-08-24ARM: EXYNOS: Remove unused DMC and CMU offsets and their mappingsPankaj Dubey
Currently there is no user of DMC and CMU SFR offsets so we can safely remove mapping of their SFR address space and cleanup related offset macros from mach-exynos. Signed-off-by: Pankaj Dubey <pankaj.dubey@samsung.com> Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2016-08-01Merge tag 'armsoc-soc' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC platform updates from Olof Johansson: "Improved and new platform support for various SoCs: New SoC support: - Broadcom BCM23550 - Freescale i.MX7Solo - Qualcomm MDM9615 - Renesas r8a7792 Improvements: - convert clps711x to multiplatform - debug uart improvements for Atmel platforms - Tango platform improvements: HOTPLUG_CPU, Suspend-to-ram - OMAP tweaks and improvements to hwmod - OMAP support for kexec on SMP" * tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (109 commits) ARM: davinci: fix build break because of undeclared dm365_evm_snd_data ARM: s3c64xx: smartq: Avoid sparse warnings ARM: sti: Implement dummy L2 cache's write_sec ARM: STi: Update machine _namestr to be more generic. arm: meson: explicitly select clk drivers ARM: tango: add Suspend-to-RAM support ARM: hisi: consolidate the hisilicon machine entries ARM: tango: fix CONFIG_HOTPLUG_CPU=n build MAINTAINERS: Update BCM281XX/BCM11XXX/BCM216XX entry MAINTAINERS: Update BCM63XX entry MAINTAINERS: Add NS2 entry MAINTAINERS: Fix nsp false-positives MAINTAINERS: Change L to M for Broadcom ARM/ARM64 SoC entries ARM: debug: Enable DEBUG_BCM_5301X for Northstar Plus SoCs ARM: clps711x: Switch to MULTIPLATFORM ARM: clps711x: Remove boards support ARM: clps711x: Add basic DT support ARM: clps711x: Reduce static map size ARM: SAMSUNG: Constify iomem address passed to s5p_init_cpu ARM: oxnas: Change OX810SE default driver config ...
2016-08-01Merge tag 'armsoc-cleanup' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC cleanups from Olof Johansson: "The cleanup branch keeps going down in size as we've completed a lot of the major legacy platform removals and conversions. A handful of changes this time around, some of the themes or larger sets are: - A bunch of i.MX cleanups around platform detection, init call cleanups - Misc fixes of missing/implicit includes - Removal of ARCH_[WANT_OPTIONAL|REQUIRE]_GPIOLIB" * tag 'armsoc-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (40 commits) ARM: mps2: fix typo ARM: s3c64xx: avoid warning about 'struct device_node' bus: mvebu-mbus: make mvebu_mbus_syscore_ops static bus: mvebu-mbus: fix __iomem on register pointers ARM: tegra: Remove board_init_funcs array ARM: iop: Fix indentation ARM: imx: remove cpu_is_mx*() ARM: imx: remove last call to cpu_is_mx5* ARM: imx: rework mx27_pm_init() call ARM: imx: deconstruct mx3_idle ARM: imx: deconstruct mxc_rnga initialization ARM: imx: remove cpu_is_mx1 check ARM: i.MX: Do not explicitly call l2x0_of_init() ARM: i.MX: system.c: Tweak prefetch settings for performance ARM: i.MX: system.c: Replace magic numbers ARM: i.MX: system.c: Remove redundant errata 752271 code ARM: i.MX: system.c: Convert goto to if statement ARM: Kirkwood: fix kirkwood_pm_init() declaration/type ARM: Kirkwood: make kirkwood_disable_mbus_error_propagation() static ARM: orion5x: make orion5x_legacy_handle_irq static ...
2016-07-06ARM: SAMSUNG: Constify iomem address passed to s5p_init_cpuKrzysztof Kozlowski
The iomem passed to s5p_init_cpu is used as read-only. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
2016-06-22ARM: SAMSUNG: Fix missing s5p_init_cpu() declarationBen Dooks
The declaration of s5p_init_cpu() in arch/arm/mach-exynos/common.h is not included in the platform file arch/arm/plat-samsung/cpu.c which generates a warning. Fix the following warning by moving the declaration to somewhere both the machine and platform code can get to it, and including the right files as necessary: arch/arm/plat-samsung/cpu.c:47:13: warning: symbol 's5p_init_cpu' was not declared. Should it be static? Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk> Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
2016-06-21ARM: SAMSUNG: Fixup usage of __raw IO in PMBen Dooks
Fix the use of __raw accesors in pm-common.c to use the _relaxed variants to deal with any issues due to endian related fetches. Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk> Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
2016-06-21ARM: SAMSUNG: Fixup endian issues in CPU detectionBen Dooks
If the system is built for big endian, then the CPU identificaiton register will be read in the wrong order. Fix this by using readl_relaxed() on the register. Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk> Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
2016-06-03Merge tag 'samsung-fixes-4.7' of ↵Olof Johansson
git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into fixes Two fixes for v4.7 cycle for build issues: 1. Fix samsung-keypad build error if INPUT is selected as module. The error though depends on some uncommon build settings so it is not as easy to trigger. 2. Get rid of 'samsung_device_dma_mask' defined but not used warning. * tag 'samsung-fixes-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux: ARM: exynos: don't select keyboard driver ARM: samsung: improve static dma_mask definition Signed-off-by: Olof Johansson <olof@lixom.net>
2016-05-30ARM: SAMSUNG: Fix typosAndrea Gelmini
Fix some language typos in comments. Signed-off-by: Andrea Gelmini <andrea.gelmini@gelma.net> Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
2016-05-18ARM: samsung: improve static dma_mask definitionArnd Bergmann
When no DMA master devices are part of the kernel configuration, we get a warning about the unused dma mask definition: arch/arm/plat-samsung/devs.c:71:12: error: 'samsung_device_dma_mask' defined but not used [-Werror=unused-variable] static u64 samsung_device_dma_mask = DMA_BIT_MASK(32); We could simply mark this as __maybe_unused to shut up that warning, but a nicer solution seems to be to have a separate mask for each device. The advantage is that a driver that happens to call dma_set_mask() on one device doesn't implicitly change the mask for the other devices as well. This is more of a theoretical problem, as obviously nothing does it for the devices in this file (or they would have always been broken), but it feels cleaner that way. The definition works by creating an array in place so we can take the address of it and let the compiler generate a hidden symbol for it at compile time. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
2016-04-18ARM: EXYNOS: Remove SROM related register settings from mach-exynosPankaj Dubey
As now we have dedicated driver for SROM controller, it will take care of saving register banks during S2R so we can safely remove these settings from mach-exynos. Signed-off-by: Pankaj Dubey <pankaj.dubey@samsung.com> Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Kukjin Kim <kgene@kernel.org> [k.kozlowski: Need to select also SAMSUNG_MC] Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
2016-03-24Merge tag 'for-linus-20160324' of git://git.infradead.org/linux-mtdLinus Torvalds
Pull MTD updates from Brian Norris: "NAND: - Add sunxi_nand randomizer support - begin refactoring NAND ecclayout structs - fix pxa3xx_nand dmaengine usage - brcmnand: fix support for v7.1 controller - add Qualcomm NAND controller driver SPI NOR: - add new ls1021a, ls2080a support to Freescale QuadSPI - add new flash ID entries - support bottom-block protection for Winbond flash - support Status Register Write Protect - remove broken QPI support for Micron SPI flash JFFS2: - improve post-mount CRC scan efficiency General: - refactor bcm63xxpart parser, to later extend for NAND - add writebuf size parameter to mtdram Other minor code quality improvements" * tag 'for-linus-20160324' of git://git.infradead.org/linux-mtd: (72 commits) mtd: nand: remove kerneldoc for removed function parameter mtd: nand: Qualcomm NAND controller driver dt/bindings: qcom_nandc: Add DT bindings mtd: nand: don't select chip in nand_chip's block_bad op mtd: spi-nor: support lock/unlock for a few Winbond chips mtd: spi-nor: add TB (Top/Bottom) protect support mtd: spi-nor: add SPI_NOR_HAS_LOCK flag mtd: spi-nor: use BIT() for flash_info flags mtd: spi-nor: disallow further writes to SR if WP# is low mtd: spi-nor: make lock/unlock bounds checks more obvious and robust mtd: spi-nor: silently drop lock/unlock for already locked/unlocked region mtd: spi-nor: wait for SR_WIP to clear on initial unlock mtd: nand: simplify nand_bch_init() usage mtd: mtdswap: remove useless if (!mtd->ecclayout) test mtd: create an mtd_oobavail() helper and make use of it mtd: kill the ecclayout->oobavail field mtd: nand: check status before reporting timeout mtd: bcm63xxpart: give width specifier an 'int', not 'size_t' mtd: mtdram: Add parameter for setting writebuf size mtd: nand: pxa3xx_nand: kill unused field 'drcmr_cmd' ...
2016-03-20Merge tag 'armsoc-soc' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC platform updates from Arnd Bergmann: "Newly added support for additional SoCs: - Axis Artpec-6 SoC family - Allwinner A83T SoC - Mediatek MT7623 - NXP i.MX6QP SoC - ST Microelectronics stm32f469 microcontroller New features: - SMP support for Mediatek mt2701 - Big-endian support for NXP i.MX - DaVinci now uses the new DMA engine dma_slave_map - OMAP now uses the new DMA engine dma_slave_map - earlyprintk support for palmchip uart on mach-tango - delay timer support for orion Other: - Exynos PMU driver moved out to drivers/soc/ - Various smaller updates for Renesas, Xilinx, PXA, AT91, OMAP, uniphier" * tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (83 commits) ARM: uniphier: rework SMP code to support new System Bus binding ARM: uniphier: add missing of_node_put() ARM: at91: avoid defining CONFIG_* symbols in source code ARM: DRA7: hwmod: Add data for eDMA tpcc, tptc0, tptc1 ARM: imx: Make reset_control_ops const ARM: imx: Do L2 errata only if the L2 cache isn't enabled ARM: imx: select ARM_CPU_SUSPEND only for imx6 dmaengine: pxa_dma: fix the maximum requestor line ARM: alpine: select the Alpine MSI controller driver ARM: pxa: add the number of DMA requestor lines dmaengine: mmp-pdma: add number of requestors dma: mmp_pdma: Add the #dma-requests DT property documentation ARM: OMAP2+: Add rtc hwmod configuration for ti81xx ARM: s3c24xx: Avoid warning for inb/outb ARM: zynq: Move early printk virtual address to vmalloc area ARM: DRA7: hwmod: Add custom reset handler for PCIeSS ARM: SAMSUNG: Remove unused register offset definition ARM: EXYNOS: Cleanup header files inclusion drivers: soc: samsung: Enable COMPILE_TEST MAINTAINERS: Add maintainers entry for drivers/soc/samsung ...
2016-02-25ARM: SAMSUNG: Remove unused register offset definitionPankaj Dubey
This patch cleans up various map.h under mach-exynos, mach-s3c24xx and plat-samsung by removing unused register offset. This patch also does a minor nitpick of changing EXYNOS4 to EXYNOS from comment section of header file "mach-exynos/include/mach/map.h". Signed-off-by: Pankaj Dubey <pankaj.dubey@samsung.com> Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
2016-02-25ARM: plat-samsung: use to_platform_device()Geliang Tang
Use to_platform_device() instead of open-coding it. Signed-off-by: Geliang Tang <geliangtang@163.com> Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
2016-01-30arm/samsung: Change s3c_pm_run_res() to use System RAM typeToshi Kani
Change s3c_pm_run_res() to check with IORESOURCE_SYSTEM_RAM, instead of strcmp() with "System RAM", to walk through System RAM ranges in the iomem table. No functional change is made to the interface. Signed-off-by: Toshi Kani <toshi.kani@hpe.com> Signed-off-by: Borislav Petkov <bp@suse.de> Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Kukjin Kim <kgene@kernel.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Luis R. Rodriguez <mcgrof@suse.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Toshi Kani <toshi.kani@hp.com> Cc: linux-arch@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-mm <linux-mm@kvack.org> Cc: linux-samsung-soc@vger.kernel.org Link: http://lkml.kernel.org/r/1453841853-11383-12-git-send-email-bp@alien8.de Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-01-26mtd: nand: s3c2410: kill the ->ecc_layout fieldBoris BREZILLON
The s3c2410 is allowing board data to overload the default ECC layout defined inside the driver, but this feature is not used by board specific definitions. Kill this field so that we can easily move to a model where ecclayout are dynamically allocated by the NAND controller driver. Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Acked-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
2016-01-20Merge tag 'armsoc-multiplatform' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC multiplatform code updates from Arnd Bergmann: "This branch is the culmination of 5 years of effort to bring the ARMv6 and ARMv7 platforms together such that they can all be enabled and boot the same kernel. It has been a tremendous amount of cleanup and refactoring by a huge number of people, and creation of several new (and major) subsystems to better abstract out all the platform details in an appropriate manner. The bulk of this branch is a large patchset from Arnd that brings several of the more minor and older platforms we have closer to multiplatform support. Among these are MMP, S3C64xx, Orion5x, mv78xx0 and realview Much of this is moving around header files from old mach directories, but there are also some cleanup patches of debug_ll (lowlevel debug per-platform options) and other parts. Linus Walleij also has some patchs to clean up the older ARM Realview platforms by finally introducing DT support, and Rob Herring has some for ARM Versatile which is now DT-only. Both of these platforms are now multiplatform. Finally, a couple of patches from Russell for Dove PMU, and a fix from Valentin Rothberg for Exynos ADC, which were rebased on top of the series to avoid conflicts" * tag 'armsoc-multiplatform' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (75 commits) ARM: realview: don't select SMP_ON_UP for UP builds ARM: s3c: simplify s3c_irqwake_{e,}intallow definition ARM: s3c64xx: fix pm-debug compilation iio: exynos-adc: fix irqf_oneshot.cocci warnings ARM: realview: build realview-dt SMP support only when used ARM: realview: select apropriate targets ARM: realview: clean up header files ARM: realview: make all header files local ARM: no longer make CPU targets visible separately ARM: integrator: use explicit core module options ARM: realview: enable multiplatform ARM: make default platform work for NOMMU ARM: debug-ll: move DEBUG_LL_UART_EFM32 to correct Kconfig location ARM: defconfig: use correct debug_ll settings ARM: versatile: convert to multi-platform ARM: versatile: merge mach code into a single file ARM: versatile: switch to DT only booting and remove legacy code ARM: versatile: add DT based PCI detection ARM: pxa: mark ezx structures as __maybe_unused ARM: pxa: mark raumfeld init functions as __maybe_unused ...
2016-01-17Merge tag 'sound-4.5-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound Pull sound updates from Takashi Iwai: "We've had quite busy weeks in this cycle. Looking at ALSA core, the significant changes are a few fixes wrt timer and sequencer ioctls that have been revealed by fuzzer recently. Other than that, ASoC core got a few updates about DAI link handling, but these are rather straightforward refactoring. In drivers scene, ASoC received quite lots of new drivers in addition to bunch of updates for still ongoing Intel Skylake support and topology API. HD-audio gained a new HDMI/DP hotplug notification via component. FireWire got a pile of code refactoring/updates with SCS.1x driver integration. More highlights are shown below. [ NOTE: this contains also many commits for DRM. This is due to the pull of drm stable branch into sound tree, as the base of i915 audio component work for HD-audio. The highlights below don't contain these DRM changes, as these are supposed to be pulled via drm tree in anyway sooner or later. ] Core: - Handful fixes to harden ALSA timer and sequencer ioctls against races reported by syzkaller fuzzer - Irq description string can be unique to each card; only for HD-audio for now ASoC: - Conversion of the array of DAI links to a list for supporting dynamically adding and removing DAI links - Topology API enhancements to make everything more component based and being able to specify PCM links via topology - Some more fixes for the topology code, though it is still not final and ready for enabling in production; we really need to get to the point where that can be done - A pile of changes for Intel SkyLake drivers which hopefully deliver some useful initial functionality for systems with this chipset, though there is more work still to come - Lots of new features and cleanups for the Renesas drivers - ANC support for WM5110 - New drivers: Imagination Technologies IPs, Atmel class D speaker, Cirrus CS47L24 and WM1831, Dialog DA7128, Realtek RT5659 and RT56156, Rockchip RK3036, TI PC3168A, and AMD ACP - Rename PCM1792a driver to be generic pcm179x HD-Audio: - Use audio component for i915 HDMI/DP hotplug handling - On-demand binding with i915 driver - bdl_pos_adj parameter adjustment for Baytrail controllers - Enable power_save_node for CX20722; this shouldn't lead to regression, hopefully - Kabylake HDMI/DP codec support - Quirks for Lenovo E50-80, Dell Latitude E-series, and other Dell machines - A few code refactoring FireWire: - Lots of code cleanup and refactoring - Integrate the support of SCS.1x devices into snd-oxfw driver; snd-scs1x driver is obsoleted USB-audio: - Fix possible NULL dereference at disconnection - A regression fix for Native Instruments devices Misc: - A few code cleanups of fm801 driver" * tag 'sound-4.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (722 commits) ALSA: timer: Code cleanup ALSA: timer: Harden slave timer list handling ALSA: hda - Add fixup for Dell Latitidue E6540 ALSA: timer: Fix race among timer ioctls ALSA: hda - add codec support for Kabylake display audio codec ALSA: timer: Fix double unlink of active_list ALSA: usb-audio: Fix mixer ctl regression of Native Instrument devices ALSA: hda - fix the headset mic detection problem for a Dell laptop ALSA: hda - Fix white noise on Dell Latitude E5550 ALSA: hda_intel: add card number to irq description ALSA: seq: Fix race at timer setup and close ALSA: seq: Fix missing NULL check at remove_events ioctl ALSA: usb-audio: Avoid calling usb_autopm_put_interface() at disconnect ASoC: hdac_hdmi: remove unused hdac_hdmi_query_pin_connlist ASoC: AMD: Add missing include file ALSA: hda - Fixup inverted internal mic for Lenovo E50-80 ALSA: usb: Add native DSD support for Oppo HA-1 ASoC: Make aux_dev more like a generic component ASoC: bcm2835: cleanup includes by ordering them alphabetically ASoC: AMD: Manage ACP 2.x SRAM banks power ...
2016-01-13Merge tag 'spi-v4.5' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi Pull spi updates from Mark Brown: "A quiet release for SPI, not even many driver updates: - Add a dummy loopback driver for use in exercising framework features during development. - Move the test utilities to tools/ and add support for transferring data to and from a file instead of stdin and stdout to spidev_test. - Support for Mediatek MT2701 and Renesas AG5 deices" * tag 'spi-v4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (69 commits) spi: loopback: fix typo in MODULE_PARM_DESC spi: sun4i: Prevent chip-select from being activated twice before a transfer spi: loopback-test: spi_check_rx_ranges can get always done spi: loopback-test: rename method spi_test_fill_tx to spi_test_fill_pattern spi: loopback-test: write rx pattern also when running without tx_buf spi: fsl-espi: expose maximum transfer size limit spi: expose master transfer size limitation. spi: zynq: use to_platform_device() spi: cadence: use to_platform_device() spi: mediatek: Add spi support for mt2701 IC spi: mediatek: merge all identical compat to mtk_common_compat spi: mtk: Add bindings for mediatek MT2701 soc platform spi: mediatek: Prevent overflows in FIFO transfers spi: s3c64xx: Remove unused platform_device_id entries spi: use to_spi_device spi: dw: Use SPI_TMOD_TR rather than magic const 0 to set tmode spi: imx: defer spi initialization, if DMA engine is spi: imx: return error from dma channel request spi: imx: enable loopback only for ECSPI controller family spi: imx: fix loopback mode setup after controller reset ...
2015-12-31ARM: s3c: simplify s3c_irqwake_{e,}intallow definitionArnd Bergmann
For a long time, gcc has warned about odd configurations on s3c64xx: In file included from arch/arm/plat-samsung/pm.c:34:0: arch/arm/mach-s3c64xx/include/mach/pm-core.h:61:0: warning: "s3c_irqwake_eintallow" redefined #define s3c_irqwake_eintallow ((1 << 28) - 1) In file included from arch/arm/plat-samsung/pm.c:33:0: arch/arm/plat-samsung/include/plat/pm.h:49:0: note: this is the location of the previous definition #define s3c_irqwake_eintallow 0 The definitions of s3c_irqwake_intallow and s3c_irqwake_eintallow are a bit consistent between the various platforms. Things have become easier now that it's only s3c24xx and s3c64xx that use them at all, so I've tried to rearrange the definitions to make it more obvious what is going on. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
2015-12-01ARM: s3c64xx: allow building without board supportArnd Bergmann
Most of the code for the s3c64xx platform is only used when booting with ATAGS based board files, but not when using device-tree. This tries to identify all the s3c64xx specific code that is unneeded when CONFIG_ATAGS is not set, so we can build a smaller DT-only kernel if configured that way. All board support is still left intact but now depends on the CONFIG_ATAGS symbol that users may intentionally disable. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2015-12-01ARM: s3c64xx: multiplatform supportArnd Bergmann
After all preparation work is done, we can finally move the Kconfig option for s3c64xx into ARCH_MULTIPLATFORM. This implies allowing SAMSUNG_ATAGS for multiplatform again, but now disallowing the ADC driver below it, as that still has dependencies on header files. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2015-12-01ARM: s3c64xx: use new adc/touchscreen driverArnd Bergmann
The old ADC and touchscreen drivers are not compatible with multiplatform support, but we can use the exynos-adc driver as a replacement. This changes the common device creation functions for s3c64xx (but not s3c24xx for now) to use the new driver. To do this, we have to pass the interrupt resources in the opposite order and pass the platform data in the adc device node. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2015-12-01ARM: s3c64xx: enable sparse IRQ supportArnd Bergmann
This is another prerequisite for enabling multiplatform support, and it is the part I am least certain about. I assume it will cause the extra boot message "Cannot allocate irq_descs @ IRQ%d, assuming pre-allocated" to be printed, but otherwise work ok. This definitely needs to be tested on real hardware to see if it works. Signed-off-by: Arnd Bergmann <arnd@arndb.de>