From: Yixun Lan <yixun.lan@amlogic.com>
To: Jerome Brunet <jbrunet@baylibre.com>,
Neil Armstrong <narmstrong@baylibre.com>
Cc: Yixun Lan <yixun.lan@amlogic.com>,
Kevin Hilman <khilman@baylibre.com>,
Carlo Caione <carlo@caione.org>,
Michael Turquette <mturquette@baylibre.com>,
Stephen Boyd <sboyd@kernel.org>, Rob Herring <robh@kernel.org>,
Miquel Raynal <miquel.raynal@bootlin.com>,
Boris Brezillon <boris.brezillon@bootlin.com>,
Martin Blumenstingl <martin.blumenstingl@googlemail.com>,
Liang Yang <liang.yang@amlogic.com>,
Qiufang Dai <qiufang.dai@amlogic.com>,
Jian Hu <jian.hu@amlogic.com>, <linux-clk@vger.kernel.org>,
<linux-amlogic@lists.infradead.org>,
<linux-arm-kernel@lists.infradead.org>,
<linux-kernel@vger.kernel.org>, <devicetree@vger.kernel.org>
Subject: [PATCH v2 1/3] clk: meson: add DT documentation for emmc clock controller
Date: Tue, 10 Jul 2018 16:36:56 +0000 [thread overview]
Message-ID: <20180710163658.6175-2-yixun.lan@amlogic.com> (raw)
In-Reply-To: <20180710163658.6175-1-yixun.lan@amlogic.com>
Document the MMC sub clock controller driver, the potential consumer
of this driver is MMC or NAND.
Signed-off-by: Yixun Lan <yixun.lan@amlogic.com>
---
.../bindings/clock/amlogic,mmc-clkc.txt | 31 +++++++++++++++++++
1 file changed, 31 insertions(+)
create mode 100644 Documentation/devicetree/bindings/clock/amlogic,mmc-clkc.txt
diff --git a/Documentation/devicetree/bindings/clock/amlogic,mmc-clkc.txt b/Documentation/devicetree/bindings/clock/amlogic,mmc-clkc.txt
new file mode 100644
index 000000000000..ff6b4bf3ecf9
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/amlogic,mmc-clkc.txt
@@ -0,0 +1,31 @@
+* Amlogic MMC Sub Clock Controller Driver
+
+The Amlogic MMC clock controller generates and supplies clock to support
+MMC and NAND controller
+
+Required Properties:
+
+- compatible: should be:
+ "amlogic,meson-gx-mmc-clkc"
+ "amlogic,meson-axg-mmc-clkc"
+
+- #clock-cells: should be 1.
+- clocks: phandles to clocks corresponding to the clock-names property
+- clock-names: list of parent clock names
+ - "clkin0", "clkin1"
+
+Parent node should have the following properties :
+- compatible: "syscon", "simple-mfd, and "amlogic,meson-axg-mmc-clkc"
+- reg: base address and size of the MMC control register space.
+
+Example: Clock controller node:
+
+sd_mmc_c_clkc: clock-controller@7000 {
+ compatible = "amlogic,mmc-clkc", "syscon", "simple-mfd";
+ reg = <0x0 0x7000 0x0 0x4>;
+ #clock-cells = <1>;
+
+ clock-names = "clkin0", "clkin1";
+ clocks = <&clkc CLKID_SD_MMC_C_CLK0>,
+ <&clkc CLKID_FCLK_DIV2>;
+};
--
2.18.0
next prev parent reply other threads:[~2018-07-10 8:40 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-07-10 16:36 [PATCH v2 0/3] clk: meson: add a sub EMMC clock controller support Yixun Lan
2018-07-10 16:36 ` Yixun Lan [this message]
2018-07-11 19:43 ` [PATCH v2 1/3] clk: meson: add DT documentation for emmc clock controller Rob Herring
2018-07-12 2:47 ` Yixun Lan
2018-07-12 14:17 ` Rob Herring
2018-07-12 23:29 ` Yixun Lan
2018-07-13 0:15 ` Rob Herring
2018-07-13 1:55 ` Yixun Lan
2018-07-23 14:12 ` Kevin Hilman
2018-07-23 14:28 ` Yixun Lan
2018-07-10 16:36 ` [PATCH v2 2/3] clk: meson: add sub MMC clock dt-bindings IDs Yixun Lan
2018-07-11 19:45 ` Rob Herring
2018-07-12 2:51 ` Yixun Lan
2018-07-10 16:36 ` [PATCH v2 3/3] clk: meson: add sub MMC clock controller driver Yixun Lan
2018-07-12 9:09 ` Jerome Brunet
2018-07-12 9:33 ` Yixun Lan
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