[PATCH v13 00/10] Add support for Hikey 970 PCIe

From: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
To: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: linuxarm@huawei.com, mauro.chehab@huawei.com,
	"Mauro Carvalho Chehab" <mchehab+huawei@kernel.org>,
	"Songxiaowei (Kirin_DRV)" <songxiaowei@hisilicon.com>,
	"Krzysztof Wilczyński" <kw@linux.com>,
	"Alex Dewar" <alex.dewar90@gmail.com>,
	"Andy Shevchenko" <andriy.shevchenko@linux.intel.com>,
	"Binghui Wang" <wangbinghui@hisilicon.com>,
	"Bjorn Helgaas" <bhelgaas@google.com>,
	"Jaehoon Chung" <jh80.chung@samsung.com>,
	"Luca Ceresoli" <luca@lucaceresoli.net>,
	"Manivannan Sadhasivam" <mani@kernel.org>,
	"Nobuhiro Iwamatsu" <nobuhiro1.iwamatsu@toshiba.co.jp>,
	"Paul Walmsley" <paul.walmsley@sifive.com>,
	"Rob Herring" <robh@kernel.org>, "Simon Xue" <xxm@rock-chips.com>,
	"Srikanth Thokala" <srikanth.thokala@intel.com>,
	"Wesley Sheng" <wesley.sheng@amd.com>,
	linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org
Subject: [PATCH v13 00/10] Add support for Hikey 970 PCIe
Date: Mon, 18 Oct 2021 08:07:25 +0100	[thread overview]
Message-ID: <cover.1634539769.git.mchehab+huawei@kernel.org> (raw)

Hi Lorenzo,

That's basically the same patches sent on v12, with the acked-by from
the driver's maintainer (Xiaowei Song) properly added on each patch
of the series.

The pcie-kirin PCIe driver contains internally a PHY interface for
Kirin 960, but it misses support for Kirin 970.

Patch1 contains a PHY for Kirin 970 PCIe.

The remaining patches add support for Kirin 970 at the pcie-kirin driver, and
add the needed logic to compile it as module and to allow to dynamically
remove the driver in runtime.

Tested on HiKey970:

  # lspci -D -PP
  0000:00:00.0 PCI bridge: Huawei Technologies Co., Ltd. Device 3670 (rev 01)
  0000:00:00.0/01:00.0 PCI bridge: PLX Technology, Inc. PEX 8606 6 Lane, 6 Port PCI Express Gen 2 (5.0 GT/s) Switch (rev ba)
  0000:00:00.0/01:00.0/02:01.0 PCI bridge: PLX Technology, Inc. PEX 8606 6 Lane, 6 Port PCI Express Gen 2 (5.0 GT/s) Switch (rev ba)
  0000:00:00.0/01:00.0/02:04.0 PCI bridge: PLX Technology, Inc. PEX 8606 6 Lane, 6 Port PCI Express Gen 2 (5.0 GT/s) Switch (rev ba)
  0000:00:00.0/01:00.0/02:05.0 PCI bridge: PLX Technology, Inc. PEX 8606 6 Lane, 6 Port PCI Express Gen 2 (5.0 GT/s) Switch (rev ba)
  0000:00:00.0/01:00.0/02:07.0 PCI bridge: PLX Technology, Inc. PEX 8606 6 Lane, 6 Port PCI Express Gen 2 (5.0 GT/s) Switch (rev ba)
  0000:00:00.0/01:00.0/02:09.0 PCI bridge: PLX Technology, Inc. PEX 8606 6 Lane, 6 Port PCI Express Gen 2 (5.0 GT/s) Switch (rev ba)
  0000:00:00.0/01:00.0/02:01.0/03:00.0 Non-Volatile memory controller: Samsung Electronics Co Ltd Device a809
  0000:00:00.0/01:00.0/02:07.0/06:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 07)

Tested on HiKey960:

  # lspci -D 
  0000:00:00.0 PCI bridge: Huawei Technologies Co., Ltd. Device 3660 (rev 01)

---

v13:
  - Added Xiaowei's ack for the series.

v12:
  - Change a comment at patch 1 to not use c99 style.

v11:
  - patch 5 changed to use the right PCIe topology
  - all other patches are identical to v10.

v10:
  - patch 1: dropped magic numbers from PHY driver
  - patch 5: allow pcie child nodes without reset-gpios
  - all other patches are identical to v9.

v9:
  - Did some cleanups at patches 1 and 5

Mauro Carvalho Chehab (10):
  PCI: kirin: Reorganize the PHY logic inside the driver
  PCI: kirin: Add support for a PHY layer
  PCI: kirin: Use regmap for APB registers
  PCI: kirin: Add support for bridge slot DT schema
  PCI: kirin: Add Kirin 970 compatible
  PCI: kirin: Add MODULE_* macros
  PCI: kirin: Allow building it as a module
  PCI: kirin: Add power_off support for Kirin 960 PHY
  PCI: kirin: fix poweroff sequence
  PCI: kirin: Allow removing the driver

 drivers/pci/controller/dwc/Kconfig      |   2 +-
 drivers/pci/controller/dwc/pcie-kirin.c | 644 ++++++++++++++++++------
 2 files changed, 498 insertions(+), 148 deletions(-)

-- 
2.31.1