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From: "Pali Rohár" <pali@kernel.org>
To: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Cc: "Bjorn Helgaas" <bhelgaas@google.com>,
	linuxarm@huawei.com, mauro.chehab@huawei.com,
	"Krzysztof Wilczyński" <kw@linux.com>,
	"Binghui Wang" <wangbinghui@hisilicon.com>,
	"Lorenzo Pieralisi" <lorenzo.pieralisi@arm.com>,
	"Rob Herring" <robh@kernel.org>,
	"Xiaowei Song" <songxiaowei@hisilicon.com>,
	linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org
Subject: Re: [PATCH v12 03/11] PCI: kirin: Add support for a PHY layer
Date: Tue, 5 Oct 2021 22:31:48 +0200	[thread overview]
Message-ID: <20211005203148.gn2f34pfvm62w6ca@pali> (raw)
In-Reply-To: <8a6d353145c0ec169d212094f5d534f93e2597f8.1632814194.git.mchehab+huawei@kernel.org>

Hello!

On Tuesday 28 September 2021 09:34:13 Mauro Carvalho Chehab wrote:
> The pcie-kirin driver contains both PHY and generic PCI driver
> on it.
> 
> The best would be, instead, to support a PCI PHY driver, making
> the driver more generic.
> 
> However, it is too late to remove the Kirin 960 PHY, as a change
> like that would make the DT schema incompatible with past versions.

I have not looked deeply at it. But is not it really possible to declare
PHY node in DTS file with backward compatible manner? Or cannot Rob help
with it (maybe there was similar issue in past with other driver)?

I was fixing something similar, address space defined in DTS was used by
two HW blocks: clock and UART. And I was able to make both DTS file and
driver backward compatible.

  reply	other threads:[~2021-10-05 20:31 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-28  7:34 [PATCH v12 00/11] Add support for Hikey 970 PCIe Mauro Carvalho Chehab
2021-09-28  7:34 ` Mauro Carvalho Chehab
2021-09-28  7:34 ` [PATCH v12 01/11] phy: HiSilicon: Add driver for Kirin 970 PCIe PHY Mauro Carvalho Chehab
2021-09-28  7:34   ` Mauro Carvalho Chehab
2021-10-01  8:12   ` Vinod Koul
2021-10-01  8:12     ` Vinod Koul
2021-09-28  7:34 ` [PATCH v12 02/11] PCI: kirin: Reorganize the PHY logic inside the driver Mauro Carvalho Chehab
2021-09-28  7:34 ` [PATCH v12 03/11] PCI: kirin: Add support for a PHY layer Mauro Carvalho Chehab
2021-10-05 20:31   ` Pali Rohár [this message]
2021-10-05 22:33     ` Mauro Carvalho Chehab
2021-09-28  7:34 ` [PATCH v12 04/11] PCI: kirin: Use regmap for APB registers Mauro Carvalho Chehab
2021-09-28  7:34 ` [PATCH v12 05/11] PCI: kirin: Add support for bridge slot DT schema Mauro Carvalho Chehab
2021-09-28  7:34 ` [PATCH v12 06/11] PCI: kirin: Add Kirin 970 compatible Mauro Carvalho Chehab
2021-09-28  7:34 ` [PATCH v12 07/11] PCI: kirin: Add MODULE_* macros Mauro Carvalho Chehab
2021-09-28  7:34 ` [PATCH v12 08/11] PCI: kirin: Allow building it as a module Mauro Carvalho Chehab
2021-09-28  7:34 ` [PATCH v12 09/11] PCI: kirin: Add power_off support for Kirin 960 PHY Mauro Carvalho Chehab
2021-09-28  7:34 ` [PATCH v12 10/11] PCI: kirin: fix poweroff sequence Mauro Carvalho Chehab
2021-09-28  7:34 ` [PATCH v12 11/11] PCI: kirin: Allow removing the driver Mauro Carvalho Chehab
2021-10-05  9:24 ` [PATCH v12 00/11] Add support for Hikey 970 PCIe Mauro Carvalho Chehab
2021-10-05  9:24   ` Mauro Carvalho Chehab
2021-10-05 18:23   ` Bjorn Helgaas
2021-10-05 18:23     ` Bjorn Helgaas
2021-10-07 14:41     ` Lorenzo Pieralisi
2021-10-07 14:41       ` Lorenzo Pieralisi
2021-10-08 10:55       ` Mauro Carvalho Chehab
2021-10-08 10:55         ` Mauro Carvalho Chehab
2021-10-08 17:34         ` Lorenzo Pieralisi
2021-10-08 17:34           ` Lorenzo Pieralisi

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