linux-kernel - Re: [PATCH v2] PCI: designware: move remaining rc setup code to dw_pcie_setup

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Message-ID: <CAHM4w1ki8wJetiZqth9QQ8wtKcvVe-WTwpgE0EBudttfYUE3WA@mail.gmail.com>
Date:	Thu, 17 Mar 2016 09:58:26 +0530
From:	Pratyush Anand <pratyush.anand@...il.com>
To:	Jisheng Zhang <jszhang@...vell.com>
Cc:	Jingoo Han <jingoohan1@...il.com>,
	Bjorn Helgaas <bhelgaas@...gle.com>,
	"linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
	linux-kernel@...r.kernel.org,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH v2] PCI: designware: move remaining rc setup code to dw_pcie_setup_rc()

On Wed, Mar 16, 2016 at 5:10 PM, Jisheng Zhang <jszhang@...vell.com> wrote:
> dw_pcie_setup_rc(), as its name indicates, setups the RC. But current
> dw_pcie_host_init() also contains some necessary rc setup code.
>
> Another reason: the host may lost power during suspend to ram, the RC
> need to be re-setup after resume. The rc can't be correctly resumed
> without the rc setup code in dw_pcie_host_init().
>
> So this patch moves the code to dw_pcie_setup_rc() to address the above
> two issues. After this patch, each pcie designware driver users could
> call dw_pcie_setup_rc() to re-setup rc when resume back.
>
> Signed-off-by: Jisheng Zhang <jszhang@...vell.com>

Seems reasonable. Thanks for the cleanup. :-)

Acked-by: Pratyush Anand <pratyush.anand@...il.com>