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2022-04-11phy: samsung: exynos5250-sata: fix missing device put in probe error pathsKrzysztof Kozlowski
The actions of of_find_i2c_device_by_node() in probe function should be reversed in error paths by putting the reference to obtained device. Fixes: bcff4cba41bc ("PHY: Exynos: Add Exynos5250 SATA PHY driver") Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com> Link: https://lore.kernel.org/r/20220407091857.230386-2-krzysztof.kozlowski@linaro.org Signed-off-by: Vinod Koul <vkoul@kernel.org>
2022-04-11phy: samsung: Fix missing of_node_put() in exynos_sata_phy_probeMiaoqian Lin
The device_node pointer is returned by of_parse_phandle() with refcount incremented. We should use of_node_put() on it when done. Fixes: bcff4cba41bc ("PHY: Exynos: Add Exynos5250 SATA PHY driver") Signed-off-by: Miaoqian Lin <linmq006@gmail.com> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20220407091857.230386-1-krzysztof.kozlowski@linaro.org Signed-off-by: Vinod Koul <vkoul@kernel.org>
2021-10-01phy: samsung: unify naming and describe driver in KConfigKrzysztof Kozlowski
We use everywhere "Samsung" and "Exynos", not the uppercase versions. Describe better which driver applies to which SoC, to make configuring kernel for Samsung SoC easier. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Link: https://lore.kernel.org/r/20210924132658.109814-1-krzysztof.kozlowski@canonical.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2021-07-20phy: samsung-ufs: support exynosauto ufs phy driverChanho Park
This patch adds to support phy-exynosautov9-ufs driver for ExynosAuto v9 series SoCs. The patch adds "samsung,exynosautov9-ufs-phy" compatible. Unlike previous exynos ufs phy, the chip uses 0x50 offset as PHY_TRSV_REG_CFG_OFFSET. Signed-off-by: Chanho Park <chanho61.park@samsung.com> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Link: https://lore.kernel.org/r/20210709094524.110193-3-chanho61.park@samsung.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2021-07-20phy: samsung-ufs: move phy-exynos7-ufs headerChanho Park
Instead of using exynos7 ufs definition in phy-exynos7-ufs.h, we should put it into phy-exynos7-ufs.c to be included different objects or units. Suggested-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Signed-off-by: Chanho Park <chanho61.park@samsung.com> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Link: https://lore.kernel.org/r/20210709094524.110193-2-chanho61.park@samsung.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-12-02phy: samsung: Merge Kconfig for Exynos5420 and Exynos5250Marek Szyprowski
Exynos5420 variant of USB2 PHY is handled by the same code as the Exynos5250 one. Introducing a separate Kconfig symbol for it was an over-engineering, which turned out to cause build break for certain configurations: ERROR: modpost: "exynos5420_usb2_phy_config" [drivers/phy/samsung/phy-exynos-usb2.ko] undefined! Fix this by removing PHY_EXYNOS5420_USB2 symbol and using PHY_EXYNOS5250_USB2 also for Exynos5420 SoCs. Reported-by: Markus Reichl <m.reichl@fivetechno.de> Fixes: 81b534f7e9b2 ("phy: samsung: Add support for the Exynos5420 variant of the USB2 PHY") Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Acked-by: Krzysztof Kozlowski <krzk@kernel.org> Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com> Link: https://lore.kernel.org/r/20201202064759.24300-1-m.szyprowski@samsung.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-11-30phy: samsung: Add support for the Exynos5420 variant of the USB2 PHYMarek Szyprowski
Exynos5420 differs a bit from Exynos5250 in USB2 PHY related registers in the PMU region. Add a variant for the Exynos5420 case. Till now, USB2 PHY worked only because the bootloader enabled the PHY, but then driver messed USB 3.0 DRD related registers during the suspend/resume cycle. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Acked-by: Krzysztof Kozlowski <krzk@kernel.org> Link: https://lore.kernel.org/r/20201120085637.7299-2-m.szyprowski@samsung.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-11-20phy: samsung: phy-exynos-pcie: fix typo 'tunning'Vinod Koul
Fix the typo s/tunning/tuning Fixes: 496db029142f ("phy: samsung: phy-exynos-pcie: rework driver to support Exynos5433 PCIe PHY") Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-11-20phy: samsung: phy-exynos-pcie: rework driver to support Exynos5433 PCIe PHYJaehoon Chung
Exynos5440 SoC support has been dropped since commit 8c83315da1cf ("ARM: dts: exynos: Remove Exynos5440"). Rework this driver to support PCIe PHY variant found in the Exynos5433 SoCs. Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> [mszyprow: reworked the driver to support only Exynos5433 variant, rebased onto current kernel code, rewrote commit message] Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Acked-by: Krzysztof Kozlowski <krzk@kernel.org> Reviewed-by: Jingoo Han <jingoohan1@gmail.com> Link: https://lore.kernel.org/r/20201120102627.14450-1-m.szyprowski@samsung.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-11-16phy: samsung: convert to devm_platform_ioremap_resourceChunfeng Yun
Use devm_platform_ioremap_resource to simplify code Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org> Link: https://lore.kernel.org/r/1604642930-29019-14-git-send-email-chunfeng.yun@mediatek.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-08-31phy: samsung-ufs: Constify samsung_ufs_phy_opsRikard Falkeborn
The only usage is to pass its address to devm_phy_create() which takes a const pointer. Make it const to allow the compiler to put it in read-only memory. Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com> Link: https://lore.kernel.org/r/20200823220025.17588-8-rikard.falkeborn@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-08-23phy: samsung: Use readl_poll_timeout functionAnand Moon
Instead of a busy waiting while loop using udelay use readl_poll_timeout function to check the condition is met or timeout occurs in crport_handshake function. readl_poll_timeout is called in non atomic context so it safe to sleep until the condition is met. Signed-off-by: Anand Moon <linux.amoon@gmail.com> Link: https://lore.kernel.org/r/20200720173502.542-1-linux.amoon@gmail.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-07-23Merge tag 'phy-for-5.9' of ↵Greg Kroah-Hartman
git://git.kernel.org/pub/scm/linux/kernel/git/phy/linux-phy into char-misc-next Vinod writes: phy for 5.9 - New PHY Drivers: - Samsung UFS - Qcom USB DWC for ipq806x - Xilinx ZynqMP Gigabit Transceiver - Qcom USB QMP for IPQ8074 - BCM63xx USBH - Removed: - Qcom ufs qmp phy driver - Updates: - Support for Qcom SM8250 QMP V4 USB3 UNIPHY - qcom-snps runtime pm support - Cleanup of W=1 warns in the subsystem * tag 'phy-for-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/phy/linux-phy: (46 commits) phy: qualcomm: fix setting of tx_deamp_3_5db when device property read fails phy: bcm63xx-usbh: Add BCM63xx USBH driver dt-bindings: phy: add bcm63xx-usbh bindings phy: armada-38x: fix NETA lockup when repeatedly switching speeds dt: update Marvell Armada 38x COMPHY binding phy: samsung-ufs: Fix IS_ERR argument dt-bindings: phy: renesas,usb3-phy: Add r8a774e1 support dt-bindings: phy: renesas,usb2-phy: Add r8a774e1 support phy: renesas: rcar-gen3-usb2: exit if request_irq() failed phy: renesas: rcar-gen3-usb2: move irq registration to init devicetree: bindings: phy: Document ipq806x dwc3 qcom phy phy: qualcomm: add qcom ipq806x dwc usb phy driver phy: samsung-ufs: add UFS PHY driver for samsung SoC dt-bindings: phy: Document Samsung UFS PHY bindings phy: sun4i-usb: explicitly include gpio/consumer.h phy: stm32: use NULL instead of zero phy: exynos5-usbdrd: use correct format for structure description phy: rockchip-typec: use correct format for structure description phy: xgene: remove unsigned integer comparison with less than zero phy: mapphone-mdm6600: Add missing description for some structure fields ...
2020-07-21phy: samsung-ufs: Fix IS_ERR argumentGustavo A. R. Silva
Fix IS_ERR argument in samsung_ufs_phy_symbol_clk_init(). The proper argument to be passed to IS_ERR() is phy->rx1_symbol_clk. This bug was detected with the help of Coccinelle. Fixes: bca21e930451 ("phy: samsung-ufs: add UFS PHY driver for samsung SoC") Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org> Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com> Link: https://lore.kernel.org/r/20200720132718.GA13413@embeddedor Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-07-17phy: samsung-ufs: add UFS PHY driver for samsung SoCAlim Akhtar
This patch introduces Samsung UFS PHY driver. This driver supports to deal with phy calibration and power control according to UFS host driver's behavior. [Robot: -Wmissing-prototypes and -Wsometimes-uninitialized] Reported-by: kernel test robot <lkp@intel.com> Reviewed-by: Kiwoong Kim <kwmad.kim@samsung.com> Signed-off-by: Seungwon Jeon <essuuj@gmail.com> Signed-off-by: Alim Akhtar <alim.akhtar@samsung.com> Cc: Kishon Vijay Abraham I <kishon@ti.com> Cc: Vinod Koul <vkoul@kernel.org> Tested-by: Paweł Chmiel <pawel.mikolaj.chmiel@gmail.com> Link: https://lore.kernel.org/r/20200716192217.35740-2-alim.akhtar@samsung.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-07-13phy: exynos5-usbdrd: use correct format for structure descriptionVinod Koul
We get warning with W=1 build: drivers/phy/samsung/phy-exynos5-usbdrd.c:211: warning: Function parameter or member 'phys' not described in 'exynos5_usbdrd_phy' drivers/phy/samsung/phy-exynos5-usbdrd.c:211: warning: Function parameter or member 'vbus' not described in 'exynos5_usbdrd_phy' drivers/phy/samsung/phy-exynos5-usbdrd.c:211: warning: Function parameter or member 'vbus_boost' not described in 'exynos5_usbdrd_phy' These members are provided with description but format is not quite right resulting in above warnings Acked-by: Marek Szyprowski <m.szyprowski@samsung.com> Link: https://lore.kernel.org/r/20200708132809.265967-5-vkoul@kernel.org Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-07-13phy: exynos5-usbdrd: Calibrating makes sense only for USB2.0 PHYMarek Szyprowski
PHY calibration is needed only for USB2.0 (UTMI) PHY, so skip calling calibration code when phy_calibrate() is called for USB3.0 (PIPE3) PHY. Fixes: d8c80bb3b55b ("phy: exynos5-usbdrd: Calibrate LOS levels for exynos5420/5800") Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Acked-by: Krzysztof Kozlowski <krzk@kernel.org> Link: https://lore.kernel.org/r/20200708133800.3336-1-m.szyprowski@samsung.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-06-24phy: exynos: Rename Exynos to lowercaseKrzysztof Kozlowski
Fix up inconsistent usage of upper and lowercase letters in "Exynos" name. "EXYNOS" is not an abbreviation but a regular trademarked name. Therefore it 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. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Link: https://lore.kernel.org/r/20200617152803.17941-1-krzk@kernel.org Signed-off-by: Vinod Koul <vkoul@kernel.org>
2020-06-15phy: samsung: Replace zero-length array with flexible-arrayGustavo A. R. Silva
There is a regular need in the kernel to provide a way to declare having a dynamically sized set of trailing elements in a structure. Kernel code should always use “flexible array members”[1] for these cases. The older style of one-element or zero-length arrays should no longer be used[2]. [1] https://en.wikipedia.org/wiki/Flexible_array_member [2] https://github.com/KSPP/linux/issues/21 Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
2020-05-13phy: samsung: s5pv210-usb2: Add delay after resetJonathan Bakker
The USB phy takes some time to reset, so make sure we give it to it. The delay length was taken from the 4x12 phy driver. This manifested in issues with the DWC2 driver since commit fe369e1826b3 ("usb: dwc2: Make dwc2_readl/writel functions endianness-agnostic.") where the endianness check would read the DWC ID as 0 due to the phy still resetting, resulting in the wrong endian mode being chosen. Signed-off-by: Jonathan Bakker <xc-racer2@live.ca> Link: https://lore.kernel.org/r/BN6PR04MB06605D52502816E500683553A3D10@BN6PR04MB0660.namprd04.prod.outlook.com Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2020-01-29Merge tag 'usb-5.6-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb Pull USB/Thunderbolt/PHY driver updates from Greg KH: "Here is the big USB and Thunderbolt and PHY driver updates for 5.6-rc1. With the advent of USB4, "Thunderbolt" has really become USB4, so the renaming of the Kconfig option and starting to share subsystem code has begun, hence both subsystems coming in through the same tree here. PHY driver updates also touched USB drivers, so that is coming in through here as well. Major stuff included in here are: - USB 4 initial support added (i.e. Thunderbolt) - musb driver updates - USB gadget driver updates - PHY driver updates - USB PHY driver updates - lots of USB serial stuff fixed up - USB typec updates - USB-IP fixes - lots of other smaller USB driver updates All of these have been in linux-next for a while now (the usb-serial tree is already tested in linux-next on its own before merged into here), with no reported issues" [ Removed an incorrect compile test enablement for PHY_EXYNOS5250_SATA that causes configuration warnings - Linus ] * tag 'usb-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (207 commits) Doc: ABI: add usb charger uevent usb: phy: show USB charger type for user usb: cdns3: fix spelling mistake and rework grammar in text usb: phy: phy-gpio-vbus-usb: Convert to GPIO descriptors USB: serial: cyberjack: fix spelling mistake "To" -> "Too" USB: serial: ir-usb: simplify endpoint check USB: serial: ir-usb: make set_termios synchronous USB: serial: ir-usb: fix IrLAP framing USB: serial: ir-usb: fix link-speed handling USB: serial: ir-usb: add missing endpoint sanity check usb: typec: fusb302: fix "op-sink-microwatt" default that was in mW usb: typec: wcove: fix "op-sink-microwatt" default that was in mW usb: dwc3: pci: add ID for the Intel Comet Lake -V variant usb: typec: tcpci: mask event interrupts when remove driver usb: host: xhci-tegra: set MODULE_FIRMWARE for tegra186 usb: chipidea: add inline for ci_hdrc_host_driver_init if host is not defined usb: chipidea: handle single role for usb role class usb: musb: fix spelling mistake: "periperal" -> "peripheral" phy: ti: j721e-wiz: Fix build error without CONFIG_OF_ADDRESS USB: usbfs: Always unlink URBs in reverse order ...
2020-01-06phy: Enable compile testing for some of driversKrzysztof Kozlowski
Some of the phy drivers can be compile tested to increase build coverage. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Link: https://lore.kernel.org/r/20200103164710.4829-2-krzk@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-08-23phy: samsung: disable bind/unbind platform driver featureMarek Szyprowski
Samsung PHY drivers control the power to the SoC core components needed by their client devices (USB HCDs, SATA, camera ISP bridge, DP encoder) to properly operate. Disabling PHYs in runtime usually causes the client device to crash with external abort exception or similar issue due to lack of API to notify clients about PHY removal. This patch removes the possiblity to unbind Samsung Exynos PHY drivers in runtime. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2019-07-01Merge tag 'phy-for-5.3' of ↵Greg Kroah-Hartman
git://git.kernel.org/pub/scm/linux/kernel/git/kishon/linux-phy into usb-next phy: for 5.3 *) Add a new PHY driver for Qualcomm PCIe2 PHY *) Add a new PHY driver for Mixel DPHY present in i.MX8 *) Fix Qualcomm QMP UFS PHY driver from incorrectly reporting that PHY enable failed *) Fix _BUG_ on Amlogic G12A USB3 + PCIE Combo PHY Driver due to calling a sleeping function from invalid context *) Fix WARN_ON dump on rcar-gen3-usb2 PHY driver caused due to imbalance powered flag *) Fix .cocci and sparse warnings Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> * tag 'phy-for-5.3' of git://git.kernel.org/pub/scm/linux/kernel/git/kishon/linux-phy: phy: qcom-qmp: Raise qcom_qmp_phy_enable() polling delay phy: meson-g12a-usb3-pcie: disable locking for cr_regmap phy: Add driver for mixel mipi dphy found on NXP's i.MX8 SoCs dt-bindings: phy: Add documentation for mixel dphy dt-bindings: phy-pxa-usb: add bindings phy: renesas: rcar-gen3-usb2: fix imbalance powered flag phy: qcom-qmp: Drop useless msm8998_pciephy_cfg setting phy: qcom-qmp: Correct READY_STATUS poll break condition phy: ti: am654-serdes: Make serdes_am654_xlate() static phy: usb: phy-brcm-usb: Fix platform_no_drv_owner.cocci warnings phy: samsung: Use struct_size() in devm_kzalloc() phy: qcom: Add Qualcomm PCIe2 PHY driver dt-bindings: phy: Add binding for Qualcomm PCIe2 PHY
2019-06-20phy: samsung: Use struct_size() in devm_kzalloc()Gustavo A. R. Silva
One of the more common cases of allocation size calculations is finding the size of a structure that has a zero-sized array at the end, along with memory for some number of elements for that array. For example: struct samsung_usb2_phy_driver { ... struct samsung_usb2_phy_instance instances[0]; }; instance = devm_kzalloc(dev, sizeof(struct samsung_usb2_phy_driver) + count * sizeof(struct samsung_usb2_phy_instance), GFP_KERNEL); Instead of leaving these open-coded and prone to type mistakes, we can now use the new struct_size() helper: instance = devm_kzalloc(dev, struct_size(instance, instances, count), GFP_KERNEL); This code was detected with the help of Coccinelle. Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2019-06-19treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500Thomas Gleixner
Based on 2 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation # extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 4122 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Enrico Weigelt <info@metux.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-21treewide: Add SPDX license identifier - Makefile/KconfigThomas Gleixner
Add SPDX license identifiers to all Make/Kconfig files which: - Have no license information of any form 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>
2018-04-25phy: exynos-mipi-video: Simplify code by using regmap_update_bits()Sylwester Nawrocki
There is no functional change, just replacing regmap_read()/modify/ regmap_write() with regmap_update_bits() function calls. Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2018-03-08phy: Remove SOC_EXYNOS4212 dep. from PHY_EXYNOS4X12_USBUlf Magnusson
Exynos4212 support was removed by commit bca9085e0ae9 ("ARM: dts: exynos: remove Exynos4212 support (dead code)"). Remove the SOC_EXYNOS4212 dependency from PHY_EXYNOS4X12_USB. Discovered with the https://github.com/ulfalizer/Kconfiglib/blob/master/examples/list_undefined.py script. Signed-off-by: Ulf Magnusson <ulfalizer@gmail.com> Acked-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2017-12-29phy: exynos5-usbdrd: Calibrate LOS levels for exynos5420/5800Vivek Gautam
Adding phy calibration sequence for USB 3.0 DRD PHY present on Exynos5420/5800 systems. This calibration facilitates setting certain PHY parameters viz. the Loss-of-Signal (LOS) Detector Threshold Level, as well as Tx-Vboost-Level for Super-Speed operations. Additionally we also set proper time to wait for RxDetect measurement, for desired PHY reference clock, so as to solve issue with enumeration of few USB 3.0 devices, like Samsung SUM-TSB16S 3.0 USB drive on the controller. We are using CR_port for this purpose to send required data to override the LOS values. On testing with USB 3.0 devices on USB 3.0 port present on SMDK5420, and peach-pit boards should see following message: usb 2-1: new SuperSpeed USB device number 2 using xhci-hcd and without this patch, should see below shown message: usb 1-1: new high-speed USB device number 2 using xhci-hcd [Also removed unnecessary extra lines in the register macro definitions] Signed-off-by: Vivek Gautam <gautam.vivek@samsung.com> [adapted to use phy_calibrate as entry point] Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com> Acked-by: Felipe Balbi <felipe.balbi@linux.intel.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2017-11-02License cleanup: add SPDX GPL-2.0 license identifier to files with no licenseGreg Kroah-Hartman
Many source files in the tree are missing licensing information, which makes it harder for compliance tools to determine the correct license. By default all files without license information are under the default license of the kernel, which is GPL version 2. Update the files which contain no license information with the 'GPL-2.0' SPDX license identifier. The SPDX identifier is a legally binding shorthand, which can be used instead of the full boiler plate text. This patch is based on work done by Thomas Gleixner and Kate Stewart and Philippe Ombredanne. How this work was done: Patches were generated and checked against linux-4.14-rc6 for a subset of the use cases: - file had no licensing information it it. - file was a */uapi/* one with no licensing information in it, - file was a */uapi/* one with existing licensing information, Further patches will be generated in subsequent months to fix up cases where non-standard license headers were used, and references to license had to be inferred by heuristics based on keywords. The analysis to determine which SPDX License Identifier to be applied to a file was done in a spreadsheet of side by side results from of the output of two independent scanners (ScanCode & Windriver) producing SPDX tag:value files created by Philippe Ombredanne. Philippe prepared the base worksheet, and did an initial spot review of a few 1000 files. The 4.13 kernel was the starting point of the analysis with 60,537 files assessed. Kate Stewart did a file by file comparison of the scanner results in the spreadsheet to determine which SPDX license identifier(s) to be applied to the file. She confirmed any determination that was not immediately clear with lawyers working with the Linux Foundation. Criteria used to select files for SPDX license identifier tagging was: - Files considered eligible had to be source code files. - Make and config files were included as candidates if they contained >5 lines of source - File already had some variant of a license header in it (even if <5 lines). All documentation files were explicitly excluded. The following heuristics were used to determine which SPDX license identifiers to apply. - when both scanners couldn't find any license traces, file was considered to have no license information in it, and the top level COPYING file license applied. For non */uapi/* files that summary was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 11139 and resulted in the first patch in this series. If that file was a */uapi/* path one, it was "GPL-2.0 WITH Linux-syscall-note" otherwise it was "GPL-2.0". Results of that was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 WITH Linux-syscall-note 930 and resulted in the second patch in this series. - if a file had some form of licensing information in it, and was one of the */uapi/* ones, it was denoted with the Linux-syscall-note if any GPL family license was found in the file or had no licensing in it (per prior point). Results summary: SPDX license identifier # files ---------------------------------------------------|------ GPL-2.0 WITH Linux-syscall-note 270 GPL-2.0+ WITH Linux-syscall-note 169 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17 LGPL-2.1+ WITH Linux-syscall-note 15 GPL-1.0+ WITH Linux-syscall-note 14 ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5 LGPL-2.0+ WITH Linux-syscall-note 4 LGPL-2.1 WITH Linux-syscall-note 3 ((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3 ((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1 and that resulted in the third patch in this series. - when the two scanners agreed on the detected license(s), that became the concluded license(s). - when there was disagreement between the two scanners (one detected a license but the other didn't, or they both detected different licenses) a manual inspection of the file occurred. - In most cases a manual inspection of the information in the file resulted in a clear resolution of the license that should apply (and which scanner probably needed to revisit its heuristics). - When it was not immediately clear, the license identifier was confirmed with lawyers working with the Linux Foundation. - If there was any question as to the appropriate license identifier, the file was flagged for further research and to be revisited later in time. In total, over 70 hours of logged manual review was done on the spreadsheet to determine the SPDX license identifiers to apply to the source files by Kate, Philippe, Thomas and, in some cases, confirmation by lawyers working with the Linux Foundation. Kate also obtained a third independent scan of the 4.13 code base from FOSSology, and compared selected files where the other two scanners disagreed against that SPDX file, to see if there was new insights. The Windriver scanner is based on an older version of FOSSology in part, so they are related. Thomas did random spot checks in about 500 files from the spreadsheets for the uapi headers and agreed with SPDX license identifier in the files he inspected. For the non-uapi files Thomas did random spot checks in about 15000 files. In initial set of patches against 4.14-rc6, 3 files were found to have copy/paste license identifier errors, and have been fixed to reflect the correct identifier. Additionally Philippe spent 10 hours this week doing a detailed manual inspection and review of the 12,461 patched files from the initial patch version early this week with: - a full scancode scan run, collecting the matched texts, detected license ids and scores - reviewing anything where there was a license detected (about 500+ files) to ensure that the applied SPDX license was correct - reviewing anything where there was no detection but the patch license was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied SPDX license was correct This produced a worksheet with 20 files needing minor correction. This worksheet was then exported into 3 different .csv files for the different types of files to be modified. These .csv files were then reviewed by Greg. Thomas wrote a script to parse the csv files and add the proper SPDX tag to the file, in the format that the file expected. This script was further refined by Greg based on the output to detect more types of files automatically and to distinguish between header and source .c files (which need different comment types.) Finally Greg ran the script using the .csv files to generate the patches. Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-08-20phy: samsung: use of_device_get_match_data()Chunfeng Yun
reduce the boilerplate code to get the specific data Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2017-06-01phy: Group vendor specific phy driversVivek Gautam
Adding vendor specific directories in phy to group phy drivers under their respective vendor umbrella. Also updated the MAINTAINERS file to reflect the correct directory structure for phy drivers. Signed-off-by: Vivek Gautam <vivek.gautam@codeaurora.org> Acked-by: Heiko Stuebner <heiko@sntech.de> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Krzysztof Kozlowski <krzk@kernel.org> Acked-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com> Cc: Kishon Vijay Abraham I <kishon@ti.com> Cc: David S. Miller <davem@davemloft.net> Cc: Geert Uytterhoeven <geert+renesas@glider.be> Cc: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Cc: Guenter Roeck <linux@roeck-us.net> Cc: Heiko Stuebner <heiko@sntech.de> Cc: Viresh Kumar <viresh.kumar@linaro.org> Cc: Maxime Ripard <maxime.ripard@free-electrons.com> Cc: Chen-Yu Tsai <wens@csie.org> Cc: Sylwester Nawrocki <s.nawrocki@samsung.com> Cc: Krzysztof Kozlowski <krzk@kernel.org> Cc: Jaehoon Chung <jh80.chung@samsung.com> Cc: Stephen Boyd <stephen.boyd@linaro.org> Cc: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Cc: linux-arm-kernel@lists.infradead.org Cc: linux-arm-msm@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: linux-omap@vger.kernel.org Cc: linux-renesas-soc@vger.kernel.org Cc: linux-rockchip@lists.infradead.org Cc: linux-samsung-soc@vger.kernel.org Cc: linux-usb@vger.kernel.org Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>