kernel/linux.git/drivers/phy/samsung, branch v5.15.209

phy: exynos5-usbdrd: fix MPLL_MULTIPLIER and SSC_REFCLKSEL masks in refclk

2025-03-13T11:51:00+00:00

commit e2158c953c973adb49383ddea2504faf08d375b7 upstream. In exynos5_usbdrd_{pipe3,utmi}_set_refclk(), the masks PHYCLKRST_MPLL_MULTIPLIER_MASK and PHYCLKRST_SSC_REFCLKSEL_MASK are not inverted when applied to the register values. Fix it. Cc: stable@vger.kernel.org Fixes: 59025887fb08 ("phy: Add new Exynos5 USB 3.0 PHY driver") Signed-off-by: Kaustabh Chakraborty Reviewed-by: Krzysztof Kozlowski Reviewed-by: Anand Moon Link: https://lore.kernel.org/r/20250209-exynos5-usbdrd-masks-v1-1-4f7f83f323d7@disroot.org Signed-off-by: Vinod Koul Signed-off-by: Greg Kroah-Hartman

phy: samsung: phy-exynos-pcie: sanitize init/power_on callbacks

2022-08-25T09:40:39+00:00

[ Upstream commit f2812227bb07e2eaee74253f11cea1576945df31 ] The exynos-pcie driver called phy_power_on() before phy_init() for some historical reasons. However the generic PHY framework assumes that the proper sequence is to call phy_init() first, then phy_power_on(). The operations done by both functions should be considered as one action and as such they are called by the exynos-pcie driver (without doing anything between them). The initialization is just a sequence of register writes, which cannot be altered without breaking the hardware operation. To match the generic PHY framework requirement, simply move all register writes to the phy_init()/phy_exit() and drop power_on()/power_off() callbacks. This way the driver will also work with the old (incorrect) PHY initialization call sequence. Link: https://lore.kernel.org/r/20220628220409.26545-1-m.szyprowski@samsung.com Reported-by: Bjorn Helgaas Signed-off-by: Marek Szyprowski Signed-off-by: Bjorn Helgaas Reviewed-by: Chanho Park Acked-by: Krzysztof Kozlowski Acked-By: Vinod Koul Signed-off-by: Sasha Levin

phy: samsung: exynosautov9-ufs: correct TSRV register configurations

2022-08-17T12:23:40+00:00

[ Upstream commit f7fdc4db071f7ee7d408ea3f083222a060c76623 ] For exynos auto v9's UFS MPHY, We should use 0x50 offset of TSRV register configurations. So, it must be s/PHY_TRSV_REG_CFG/PHY_TRSV_REG_CFG_AUTOV9/g Fixes: d64519249e1d ("phy: samsung-ufs: support exynosauto ufs phy driver") Signed-off-by: Chanho Park Acked-by: Krzysztof Kozlowski Link: https://lore.kernel.org/r/20220603050536.61957-1-chanho61.park@samsung.com Signed-off-by: Vinod Koul Signed-off-by: Sasha Levin

phy: samsung: exynos5250-sata: fix missing device put in probe error paths

2022-05-09T07:14:32+00:00

[ Upstream commit 5c8402c4db45dd55c2c93c8d730f5dfa7c78a702 ] 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 Reviewed-by: Alim Akhtar Link: https://lore.kernel.org/r/20220407091857.230386-2-krzysztof.kozlowski@linaro.org Signed-off-by: Vinod Koul Signed-off-by: Sasha Levin

phy: samsung: Fix missing of_node_put() in exynos_sata_phy_probe

2022-05-09T07:14:32+00:00

[ Upstream commit 388ec8f079f2f20d5cd183c3bc6f33cbc3ffd3ef ] 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 Reviewed-by: Krzysztof Kozlowski Signed-off-by: Krzysztof Kozlowski Link: https://lore.kernel.org/r/20220407091857.230386-1-krzysztof.kozlowski@linaro.org Signed-off-by: Vinod Koul Signed-off-by: Sasha Levin

phy: samsung-ufs: support exynosauto ufs phy driver

2021-07-20T11:13:10+00:00

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 Reviewed-by: Krzysztof Kozlowski Link: https://lore.kernel.org/r/20210709094524.110193-3-chanho61.park@samsung.com Signed-off-by: Vinod Koul

phy: samsung-ufs: move phy-exynos7-ufs header

2021-07-20T11:13:10+00:00

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 Signed-off-by: Chanho Park Reviewed-by: Krzysztof Kozlowski Link: https://lore.kernel.org/r/20210709094524.110193-2-chanho61.park@samsung.com Signed-off-by: Vinod Koul

phy: samsung: Merge Kconfig for Exynos5420 and Exynos5250

2020-12-02T07:05:07+00:00

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 Fixes: 81b534f7e9b2 ("phy: samsung: Add support for the Exynos5420 variant of the USB2 PHY") Signed-off-by: Marek Szyprowski Acked-by: Krzysztof Kozlowski Reviewed-by: Jaehoon Chung Link: https://lore.kernel.org/r/20201202064759.24300-1-m.szyprowski@samsung.com Signed-off-by: Vinod Koul

phy: samsung: Add support for the Exynos5420 variant of the USB2 PHY

2020-11-30T10:50:59+00:00

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 Acked-by: Krzysztof Kozlowski Link: https://lore.kernel.org/r/20201120085637.7299-2-m.szyprowski@samsung.com Signed-off-by: Vinod Koul

phy: samsung: phy-exynos-pcie: fix typo 'tunning'

2020-11-20T10:34:01+00:00

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