linux-toradex.git/drivers/phy/samsung, branch v5.12

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

phy: samsung: phy-exynos-pcie: rework driver to support Exynos5433 PCIe PHY

2020-11-20T10:32:09+00:00

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 
[mszyprow: reworked the driver to support only Exynos5433 variant, rebased
	   onto current kernel code, rewrote commit message]
Signed-off-by: Marek Szyprowski 
Acked-by: Krzysztof Kozlowski 
Reviewed-by: Jingoo Han 
Link: https://lore.kernel.org/r/20201120102627.14450-1-m.szyprowski@samsung.com
Signed-off-by: Vinod Koul

phy: samsung: convert to devm_platform_ioremap_resource

2020-11-16T07:17:47+00:00

Use devm_platform_ioremap_resource to simplify code

Signed-off-by: Chunfeng Yun 
Reviewed-by: Krzysztof Kozlowski 
Link: https://lore.kernel.org/r/1604642930-29019-14-git-send-email-chunfeng.yun@mediatek.com
Signed-off-by: Vinod Koul

phy: samsung-ufs: Constify samsung_ufs_phy_ops

2020-08-31T09:06:37+00:00

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 
Link: https://lore.kernel.org/r/20200823220025.17588-8-rikard.falkeborn@gmail.com
Signed-off-by: Vinod Koul

phy: samsung: Use readl_poll_timeout function

2020-08-23T14:06:37+00:00

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 
Link: https://lore.kernel.org/r/20200720173502.542-1-linux.amoon@gmail.com
Signed-off-by: Vinod Koul

Merge tag 'phy-for-5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/phy/linux-phy into char-misc-next

2020-07-23T07:52:10+00:00

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
  ...

phy: samsung-ufs: Fix IS_ERR argument

2020-07-21T10:39:11+00:00

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 
Reviewed-by: Alim Akhtar 
Link: https://lore.kernel.org/r/20200720132718.GA13413@embeddedor
Signed-off-by: Vinod Koul

phy: samsung-ufs: add UFS PHY driver for samsung SoC

2020-07-17T08:05:30+00:00

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 
Reviewed-by: Kiwoong Kim 
Signed-off-by: Seungwon Jeon 
Signed-off-by: Alim Akhtar 
Cc: Kishon Vijay Abraham I 
Cc: Vinod Koul 
Tested-by: Paweł Chmiel 
Link: https://lore.kernel.org/r/20200716192217.35740-2-alim.akhtar@samsung.com
Signed-off-by: Vinod Koul