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path: root/drivers/phy/samsung/phy-samsung-usb2.c
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* phy: samsung: Merge Kconfig for Exynos5420 and Exynos5250Marek Szyprowski2020-12-021-2/+0
| | | | | | | | | | | | | | | | | | | | 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>
* phy: samsung: Add support for the Exynos5420 variant of the USB2 PHYMarek Szyprowski2020-11-301-0/+6
| | | | | | | | | | | | 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>
* phy: samsung: convert to devm_platform_ioremap_resourceChunfeng Yun2020-11-161-3/+1
| | | | | | | | | 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>
* phy: exynos: Rename Exynos to lowercaseKrzysztof Kozlowski2020-06-241-1/+1
| | | | | | | | | | | | | | | | | 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>
* phy: samsung: disable bind/unbind platform driver featureMarek Szyprowski2019-08-231-0/+1
| | | | | | | | | | | | 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>
* Merge tag 'phy-for-5.3' of ↵Greg Kroah-Hartman2019-07-011-3/+2
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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
| * phy: samsung: Use struct_size() in devm_kzalloc()Gustavo A. R. Silva2019-06-201-3/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* | treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500Thomas Gleixner2019-06-191-4/+1
|/ | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* phy: samsung: use of_device_get_match_data()Chunfeng Yun2017-08-201-6/+3
| | | | | | | 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>
* phy: Group vendor specific phy driversVivek Gautam2017-06-011-0/+267
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>