From: "Heiko Stübner" <heiko@sntech.de>
To: Shawn Lin <shawn.lin@rock-chips.com>,
Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
Rob Herring <robh@kernel.org>,
Bjorn Helgaas <bhelgaas@google.com>,
Chen-Yu Tsai <wens@kernel.org>
Cc: devicetree@vger.kernel.org, linux-pci@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-rockchip@lists.infradead.org,
Chen-Yu Tsai <wens@csie.org>, Johan Jonker <jbx6244@gmail.com>,
Robin Murphy <robin.murphy@arm.com>,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v2 1/4] PCI: rockchip: Make 'ep-gpios' DT property optional
Date: Wed, 18 Nov 2020 09:49:40 +0100 [thread overview]
Message-ID: <1737702.WCGJIqnLLh@diego> (raw)
In-Reply-To: <20201118071724.4866-2-wens@kernel.org>
Am Mittwoch, 18. November 2020, 08:17:21 CET schrieb Chen-Yu Tsai:
> From: Chen-Yu Tsai <wens@csie.org>
>
> The Rockchip PCIe controller DT binding clearly states that 'ep-gpios' is
> an optional property. And indeed there are boards that don't require it.
>
> Make the driver follow the binding by using devm_gpiod_get_optional()
> instead of devm_gpiod_get().
>
> Fixes: e77f847df54c ("PCI: rockchip: Add Rockchip PCIe controller support")
> Fixes: 956cd99b35a8 ("PCI: rockchip: Separate common code from RC driver")
> Fixes: 964bac9455be ("PCI: rockchip: Split out rockchip_pcie_parse_dt() to parse DT")
> Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Reviewed-by: Heiko Stuebner <heiko@sntech.de
I'll pick up patches 2-4 separately, after giving Rob a chance to look at
the simple binding.
Heiko
> ---
> Changes since v1:
>
> - Rewrite subject to match existing convention and reference
> 'ep-gpios' DT property instead of the 'ep_gpio' field
> ---
> drivers/pci/controller/pcie-rockchip.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/pci/controller/pcie-rockchip.c b/drivers/pci/controller/pcie-rockchip.c
> index 904dec0d3a88..c95950e9004f 100644
> --- a/drivers/pci/controller/pcie-rockchip.c
> +++ b/drivers/pci/controller/pcie-rockchip.c
> @@ -118,7 +118,7 @@ int rockchip_pcie_parse_dt(struct rockchip_pcie *rockchip)
> }
>
> if (rockchip->is_rc) {
> - rockchip->ep_gpio = devm_gpiod_get(dev, "ep", GPIOD_OUT_HIGH);
> + rockchip->ep_gpio = devm_gpiod_get_optional(dev, "ep", GPIOD_OUT_HIGH);
> if (IS_ERR(rockchip->ep_gpio)) {
> dev_err(dev, "missing ep-gpios property in node\n");
> return PTR_ERR(rockchip->ep_gpio);
>
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2020-11-18 8:54 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-18 7:17 [PATCH v2 0/4] arm64: rockchip: Fix PCIe ep-gpios requirement and Add Nanopi M4B Chen-Yu Tsai
2020-11-18 7:17 ` [PATCH v2 1/4] PCI: rockchip: Make 'ep-gpios' DT property optional Chen-Yu Tsai
2020-11-18 8:49 ` Heiko Stübner [this message]
2020-12-07 3:30 ` Chen-Yu Tsai
2020-12-07 14:11 ` Rob Herring
2020-12-12 15:18 ` Chen-Yu Tsai
2020-12-14 14:17 ` Rob Herring
2020-11-18 7:17 ` [PATCH v2 2/4] dt-bindings: arm: rockchip: Add FriendlyARM NanoPi M4B Chen-Yu Tsai
2020-12-07 21:13 ` Rob Herring
2020-11-18 7:17 ` [PATCH v2 3/4] arm64: dts: rockchip: nanopi4: Move ep-gpios property to nanopc-t4 Chen-Yu Tsai
2020-12-14 15:18 ` Robin Murphy
2020-11-18 7:17 ` [PATCH v2 4/4] arm64: dts: rockchip: rk3399: Add NanoPi M4B Chen-Yu Tsai
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1737702.WCGJIqnLLh@diego \
--to=heiko@sntech.de \
--cc=bhelgaas@google.com \
--cc=devicetree@vger.kernel.org \
--cc=jbx6244@gmail.com \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-pci@vger.kernel.org \
--cc=linux-rockchip@lists.infradead.org \
--cc=lorenzo.pieralisi@arm.com \
--cc=robh@kernel.org \
--cc=robin.murphy@arm.com \
--cc=shawn.lin@rock-chips.com \
--cc=wens@csie.org \
--cc=wens@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).