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

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Message-Id: <1561958991-21935-6-git-send-email-manish.narani@xilinx.com>
Date:   Mon,  1 Jul 2019 10:59:45 +0530
From:   Manish Narani <manish.narani@...inx.com>
To:     ulf.hansson@...aro.org, robh+dt@...nel.org, mark.rutland@....com,
        heiko@...ech.de, michal.simek@...inx.com, adrian.hunter@...el.com,
        christoph.muellner@...obroma-systems.com,
        philipp.tomsich@...obroma-systems.com, viresh.kumar@...aro.org,
        scott.branden@...adcom.com, ayaka@...lik.info, kernel@...il.dk,
        tony.xie@...k-chips.com, rajan.vaja@...inx.com,
        jolly.shah@...inx.com, nava.manne@...inx.com, mdf@...nel.org,
        manish.narani@...inx.com, olof@...om.net
Cc:     linux-mmc@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-rockchip@...ts.infradead.org
Subject: [PATCH v2 05/11] dt-bindings: mmc: arasan: Update Documentation for the input clock

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@...inx.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