LKML Archive on lore.kernel.org
help / color / mirror / Atom feed
From: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
To: Rob Herring <robh+dt@kernel.org>
Cc: linuxarm@huawei.com, mauro.chehab@huawei.com,
	Mauro Carvalho Chehab <mchehab+huawei@kernel.org>,
	Binghui Wang <wangbinghui@hisilicon.com>,
	Bjorn Helgaas <bhelgaas@google.com>,
	Xiaowei Song <songxiaowei@hisilicon.com>,
	devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-pci@vger.kernel.org
Subject: [PATCH v2 1/2] dt-bindings: PCI: kirin: fix bus-range
Date: Mon, 16 Aug 2021 21:53:25 +0200	[thread overview]
Message-ID: <ebb2f22871aa1145e49452c21b7fb320c1cdd8bb.1629143524.git.mchehab+huawei@kernel.org> (raw)
In-Reply-To: <cover.1629143524.git.mchehab+huawei@kernel.org>

Using bus-range = <0 1> causes a runtime warning:

            [    5.363450] pci_bus 0000:00: root bus resource [bus 00-01]
            [    5.396998] pci_bus 0000:01: busn_res: can not insert [bus 01-ff] under [bus 00-01] (conflicts with (null) [bus 00-01])
            [    5.284831] pci 0000:00:00.0: PCI bridge to [bus 01-ff]

On Kirin 960, changing to bus-range = <0 0xff> produces a
cleaner log.

Kirin 970 is more complex, so better to just drop bus-range
as a hole.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
---
 .../devicetree/bindings/pci/hisilicon,kirin-pcie.yaml          | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/pci/hisilicon,kirin-pcie.yaml b/Documentation/devicetree/bindings/pci/hisilicon,kirin-pcie.yaml
index c0551d2e606d..d05deebe9dbb 100644
--- a/Documentation/devicetree/bindings/pci/hisilicon,kirin-pcie.yaml
+++ b/Documentation/devicetree/bindings/pci/hisilicon,kirin-pcie.yaml
@@ -66,7 +66,7 @@ examples:
               <0x0 0xf3f20000 0x0 0x40000>,
               <0x0 0xf5000000 0x0 0x2000>;
         reg-names = "dbi", "apb", "phy", "config";
-        bus-range = <0x0  0x1>;
+        bus-range = <0x0  0xff>;
         #address-cells = <3>;
         #size-cells = <2>;
         device_type = "pci";
@@ -97,7 +97,6 @@ examples:
               <0x0 0xfc180000 0x0 0x1000>,
               <0x0 0xf5000000 0x0 0x2000>;
         reg-names = "dbi", "apb", "config";
-        bus-range = <0x0  0x1>;
         msi-parent = <&its_pcie>;
         #address-cells = <3>;
         #size-cells = <2>;
-- 
2.31.1


  reply	other threads:[~2021-08-16 19:53 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-16 19:53 [PATCH v2 0/2] Adjust HiKey examples for kirin-pcie Mauro Carvalho Chehab
2021-08-16 19:53 ` Mauro Carvalho Chehab [this message]
2021-08-16 19:53 ` [PATCH v2 2/2] dt-bindings: PCI: kirin: fix HiKey970 example Mauro Carvalho Chehab
2021-08-16 20:34 ` [PATCH v2 0/2] Adjust HiKey examples for kirin-pcie Rob Herring

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=ebb2f22871aa1145e49452c21b7fb320c1cdd8bb.1629143524.git.mchehab+huawei@kernel.org \
    --to=mchehab+huawei@kernel.org \
    --cc=bhelgaas@google.com \
    --cc=devicetree@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-pci@vger.kernel.org \
    --cc=linuxarm@huawei.com \
    --cc=mauro.chehab@huawei.com \
    --cc=robh+dt@kernel.org \
    --cc=songxiaowei@hisilicon.com \
    --cc=wangbinghui@hisilicon.com \
    --subject='Re: [PATCH v2 1/2] dt-bindings: PCI: kirin: fix bus-range' \
    /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

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).