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From: Rob Herring <robh@kernel.org>
To: Serge Semin <Sergey.Semin@baikalelectronics.ru>
Cc: "Jingoo Han" <jingoohan1@gmail.com>,
	"Gustavo Pimentel" <gustavo.pimentel@synopsys.com>,
	"Bjorn Helgaas" <bhelgaas@google.com>,
	"Lorenzo Pieralisi" <lorenzo.pieralisi@arm.com>,
	"Krzysztof Wilczyński" <kw@linux.com>,
	"Serge Semin" <fancer.lancer@gmail.com>,
	"Manivannan Sadhasivam" <manivannan.sadhasivam@linaro.org>,
	"Alexey Malahov" <Alexey.Malahov@baikalelectronics.ru>,
	"Pavel Parkhomenko" <Pavel.Parkhomenko@baikalelectronics.ru>,
	"Frank Li" <Frank.Li@nxp.com>,
	linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v3 01/13] PCI: dwc: Stop link in the host init error and de-initialization
Date: Thu, 26 May 2022 16:30:28 -0500	[thread overview]
Message-ID: <20220526213028.GO54904-robh@kernel.org> (raw)
In-Reply-To: <20220517125058.18488-2-Sergey.Semin@baikalelectronics.ru>

On Tue, May 17, 2022 at 03:50:46PM +0300, Serge Semin wrote:
> It's logically correct to undo everything what was done in case of an
> error is discovered or in the corresponding cleanup counterpart. Otherwise
> the host controller will be left in an undetermined state. Seeing the link
> is set up in the Host-initialization method it will be right to
> de-activate it there in the cleanup-on-error block and stop the link in
> the antagonistic routine - dw_pcie_host_deinit(). The link de-activation
> is a platform-specific thing and is supposed to be implemented in the
> framework of the dw_pcie_ops.stop_link() operation.
> 
> Fixes: 886a9c134755 ("PCI: dwc: Move link handling into common code")
> Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru>
> Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
> Tested-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
> ---
>  .../pci/controller/dwc/pcie-designware-host.c    | 16 ++++++++++++++--
>  1 file changed, 14 insertions(+), 2 deletions(-)

Reviewed-by: Rob Herring <robh@kernel.org>

  reply	other threads:[~2022-05-26 21:30 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-05-17 12:50 [PATCH v3 00/13] PCI: dwc: Various fixes and cleanups Serge Semin
2022-05-17 12:50 ` [PATCH v3 01/13] PCI: dwc: Stop link in the host init error and de-initialization Serge Semin
2022-05-26 21:30   ` Rob Herring [this message]
2022-05-17 12:50 ` [PATCH v3 02/13] PCI: dwc: Don't use generic IO-ops for DBI-space access Serge Semin
2022-05-26 21:29   ` Rob Herring
2022-05-27 16:05     ` Serge Semin
2022-05-27 17:39       ` Serge Semin
2022-05-31 16:09         ` Rob Herring
2022-05-31 18:46           ` Serge Semin
2022-05-17 12:50 ` [PATCH v3 03/13] PCI: dwc: Add unroll iATU space support to the regions disable method Serge Semin
2022-05-17 12:50 ` [PATCH v3 04/13] PCI: dwc: Disable outbound windows for controllers with iATU Serge Semin
2022-05-17 12:50 ` [PATCH v3 05/13] PCI: dwc: Set INCREASE_REGION_SIZE flag based on limit address Serge Semin
2022-05-17 12:50 ` [PATCH v3 06/13] PCI: dwc: Add braces to the multi-line if-else statements Serge Semin
2022-05-17 12:50 ` [PATCH v3 07/13] PCI: dwc: Add trailing new-line literals to the log messages Serge Semin
2022-05-17 12:50 ` [PATCH v3 08/13] PCI: dwc: Discard IP-core version checking on unrolled iATU detection Serge Semin
2022-05-17 12:50 ` [PATCH v3 09/13] PCI: dwc: Convert Link-up status method to using dw_pcie_readl_dbi() Serge Semin
2022-05-17 12:50 ` [PATCH v3 10/13] PCI: dwc: Deallocate EPC memory on EP init error Serge Semin
2022-05-17 12:50 ` [PATCH v3 11/13] PCI: dwc-plat: Simplify the probe method return value handling Serge Semin
2022-05-17 12:50 ` [PATCH v3 12/13] PCI: dwc-plat: Discard unused regmap pointer Serge Semin
2022-05-17 12:50 ` [PATCH v3 13/13] PCI: dwc-plat: Drop dw_plat_pcie_of_match forward declaration Serge Semin

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