[PATCH v2 05/11] dt-bindings: mmc: arasan: Update Documentation for the input clock

From: Manish Narani <manish.narani@xilinx.com>
To: ulf.hansson@linaro.org, robh+dt@kernel.org, mark.rutland@arm.com,
	heiko@sntech.de, michal.simek@xilinx.com,
	adrian.hunter@intel.com,
	christoph.muellner@theobroma-systems.com,
	philipp.tomsich@theobroma-systems.com, viresh.kumar@linaro.org,
	scott.branden@broadcom.com, ayaka@soulik.info, kernel@esmil.dk,
	tony.xie@rock-chips.com, rajan.vaja@xilinx.com,
	jolly.shah@xilinx.com, nava.manne@xilinx.com, mdf@kernel.org,
	manish.narani@xilinx.com, olof@lixom.net
Cc: linux-mmc@vger.kernel.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-rockchip@lists.infradead.org
Subject: [PATCH v2 05/11] dt-bindings: mmc: arasan: Update Documentation for the input clock
Date: Mon,  1 Jul 2019 10:59:45 +0530	[thread overview]
Message-ID: <1561958991-21935-6-git-send-email-manish.narani@xilinx.com> (raw)
In-Reply-To: <1561958991-21935-1-git-send-email-manish.narani@xilinx.com>

Add documentation for an optional input clock which is essentially used
in sampling the input data coming from the card.

Signed-off-by: Manish Narani <manish.narani@xilinx.com>
---
 Documentation/devicetree/bindings/mmc/arasan,sdhci.txt | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/Documentation/devicetree/bindings/mmc/arasan,sdhci.txt b/Documentation/devicetree/bindings/mmc/arasan,sdhci.txt
index 15c6397..7c79496 100644
--- a/Documentation/devicetree/bindings/mmc/arasan,sdhci.txt
+++ b/Documentation/devicetree/bindings/mmc/arasan,sdhci.txt
@@ -23,10 +23,10 @@ Required Properties:
   - reg: From mmc bindings: Register location and length.
   - clocks: From clock bindings: Handles to clock inputs.
   - clock-names: From clock bindings: Tuple including "clk_xin" and "clk_ahb"
-		 Apart from these two there is one more optional clock which
-		 is "clk_sdcard". This clock represents output clock from
-		 controller and card. This must be specified when #clock-cells
-		 is specified.
+		 Apart from these two there are two more optional clocks which
+		 are "clk_sdcard" and "clk_sample". These two clocks represent
+		 output and input clocks between controller and card. These
+		 must be specified when #clock-cells is specified.
   - interrupts: Interrupt specifier
 
 Required Properties for "arasan,sdhci-5.1":
@@ -40,9 +40,9 @@ Optional Properties:
   - clock-output-names: If specified, this will be the name of the card clock
     which will be exposed by this device.  Required if #clock-cells is
     specified.
-  - #clock-cells: If specified this should be the value <0>. With this
-    property in place we will export one clock representing the Card
-    Clock. This clock is expected to be consumed by our PHY. You must also
+  - #clock-cells: If specified this should be the value <0> or <1>. With this
+    property in place we will export one or two clocks representing the Card
+    Clock. These clocks are expected to be consumed by our PHY. You must also
     specify
   - xlnx,fails-without-test-cd: when present, the controller doesn't work when
     the CD line is not connected properly, and the line is not connected
-- 
2.1.1

