[PATCH phy v2 0/6] Armada 3720 comphy native implementation

From: "Marek Behún" <kabel@kernel.org>
To: Vinod Koul <vkoul@kernel.org>
Cc: linux-phy@lists.infradead.org,
	"Kishon Vijay Abraham I" <kishon@ti.com>,
	pali@kernel.org, "Miquel Raynal" <miquel.raynal@bootlin.com>,
	"Gregory CLEMENT" <gregory.clement@bootlin.com>,
	"Marek Behún" <kabel@kernel.org>
Subject: [PATCH phy v2 0/6] Armada 3720 comphy native implementation
Date: Wed,  8 Dec 2021 03:40:32 +0100	[thread overview]
Message-ID: <20211208024038.8797-1-kabel@kernel.org> (raw)

Hello Vinod,

this is v2 of series converting A3720 comphy to native kernel
implementation.

Tested on Turris MOX and ESPRESSObin (tested all supported PHY modes:
ethernet, PCIe, USB3, SATA).

Changes since v1 (all changes in patch 2/6):
- refactored to use GENMASK()
- fixed various register names to conform to Functional Specification
- refactored various register names to have uniform naming
- refactored register access into one function, which decides whether
  the access should be direct or indirect, so as to not have all these
  checks done everywhere in the code
- moved around one register definition to have the registers sorted
  according to their offset
- added comments to some register definitions
- added support for PHY reset() method
- when changing PHY mode, the driver now resets the PHY and its
  registers to put the PHY in known state
- fixed the power_off() method
- added spinlock guard when accessing PHY Selector register, since it
  is shared between the PHYs and so the PHY mutex is insufficient
- upon driver probe changed the calls to power_off() to reset()

The original cover letter said:

The RPC calling to ARM Trusted Firmware implementation of Armada 3720
comphy driver caused quite a number of issues (explained more in patch 2).

This series fixes those issues by reimplementing the driver to native
kernel implementation.

The last 3 commits revert commits in AHCI, USB, and PCI drivers, that were
introduced there because of those issues.

Pali Rohár (6):
  phy: marvell: phy-mvebu-a3700-comphy: Remove port from driver
    configuration
  phy: marvell: phy-mvebu-a3700-comphy: Add native kernel implementation
  arm64: dts: marvell: armada-37xx: Add xtal clock to comphy node
  Revert "ata: ahci: mvebu: Make SATA PHY optional for Armada 3720"
  Revert "usb: host: xhci: mvebu: make USB 3.0 PHY optional for Armada
    3720"
  Revert "PCI: aardvark: Fix initialization with old Marvell's Arm
    Trusted Firmware"

 arch/arm64/boot/dts/marvell/armada-37xx.dtsi |    2 +
 drivers/ata/ahci.h                           |    2 -
 drivers/ata/ahci_mvebu.c                     |    2 +-
 drivers/ata/libahci_platform.c               |    2 +-
 drivers/pci/controller/pci-aardvark.c        |    4 +-
 drivers/phy/marvell/phy-mvebu-a3700-comphy.c | 1362 ++++++++++++++++--
 drivers/usb/host/xhci-mvebu.c                |   42 -
 drivers/usb/host/xhci-mvebu.h                |    6 -
 drivers/usb/host/xhci-plat.c                 |   20 +-
 drivers/usb/host/xhci-plat.h                 |    1 -
 10 files changed, 1240 insertions(+), 203 deletions(-)

-- 
2.32.0

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