From: Seraphin Bonnaffe <seraphin.bonnaffe@st.com>
To: <b29396@freescale.com>, <linux-arm-kernel@lists.infradead.org>,
<devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<lee.jones@linaro.org>, <maxime.coquelin@st.com>
Cc: <sameo@linux.intel.com>, <grant.likely@linaro.org>,
<robh+dt@kernel.org>, <pawel.moll@arm.com>,
<mark.rutland@arm.com>, <ijc+devicetree@hellion.org.uk>,
<galak@codeaurora.org>, <arnd@arndb.de>,
<seraphin.bonnaffe@st.com>
Subject: [RFC PATCH 1/2] mfd: syscon: Document new DT binding "holes"
Date: Tue, 7 Oct 2014 15:22:27 +0200 [thread overview]
Message-ID: <1412688148-20835-2-git-send-email-seraphin.bonnaffe@st.com> (raw)
In-Reply-To: <1412688148-20835-1-git-send-email-seraphin.bonnaffe@st.com>
This patch adds DT bindings to declare holes in syscon register maps.
Signed-off-by: Seraphin Bonnaffe <seraphin.bonnaffe@st.com>
---
Documentation/devicetree/bindings/mfd/syscon.txt | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/Documentation/devicetree/bindings/mfd/syscon.txt b/Documentation/devicetree/bindings/mfd/syscon.txt
index fe8150b..80ab9ca 100644
--- a/Documentation/devicetree/bindings/mfd/syscon.txt
+++ b/Documentation/devicetree/bindings/mfd/syscon.txt
@@ -13,8 +13,13 @@ Required properties:
- compatible: Should contain "syscon".
- reg: the register region can be accessed from syscon
+Optional properties:
+- holes: Register regions that cannot be accessed within reg range.
+ Each hole is described with its offset address, followed by its size.
+
Examples:
gpr: iomuxc-gpr@020e0000 {
compatible = "fsl,imx6q-iomuxc-gpr", "syscon";
reg = <0x020e0000 0x38>;
+ holes = <0x000c 0x8 0x020 0x4>;
};
--
1.9.1
next prev parent reply other threads:[~2014-10-07 13:23 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <54244655.1090801@st.com>
2014-10-07 13:22 ` [RFC PATCH 0/2] mfd: syscon: declare holes in syscon register maps Seraphin Bonnaffe
2014-10-07 13:22 ` Seraphin Bonnaffe [this message]
2014-10-07 13:22 ` [RFC PATCH 2/2] mfd: syscon: specify rd_table and wr_table from DT Seraphin Bonnaffe
2014-10-08 11:12 ` [RFC PATCH 0/2] mfd: syscon: declare holes in syscon register maps Maxime Coquelin
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