lkml.org 
[lkml]   [2015]   [Mar]   [6]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH] pwm: imx-pwm: add explicit compatible strings and required clock properties
Date
The imx-pwm binding contains language indicating compatible
strings to be used that is not valid for all supported parts
e.g. Should be "fsl,<soc>-pwm". Fix this by enumerating the
valid compatible strings that represent the two versions of
this peripheral in use.

The binding is also missing the clocks/clock-names properties
so document these,the two required ipg and per clocks, and add
add these properties to the example.

Signed-off-by: Matt Porter <mporter@konsulko.com>
---
Documentation/devicetree/bindings/pwm/imx-pwm.txt | 11 ++++++++++-
1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/pwm/imx-pwm.txt b/Documentation/devicetree/bindings/pwm/imx-pwm.txt
index b50d7a6d..30d2b82 100644
--- a/Documentation/devicetree/bindings/pwm/imx-pwm.txt
+++ b/Documentation/devicetree/bindings/pwm/imx-pwm.txt
@@ -1,10 +1,16 @@
Freescale i.MX PWM controller

Required properties:
-- compatible: should be "fsl,<soc>-pwm"
+- compatible :
+ - "fsl,imx1-pwm" for PWM compatible with the one integrated on i.MX1
+ - "fsl,imx27-pwm" for PWM compatible with the one integrated on i.MX27
- reg: physical base address and length of the controller's registers
- #pwm-cells: should be 2. See pwm.txt in this directory for a description of
the cells format.
+- clocks : Clock specifiers for both ipg and per clocks.
+- clock-names : Clock names should include both "ipg" and "per"
+See the clock consumer binding,
+ Documentation/devicetree/bindings/clock/clock-bindings.txt
- interrupts: The interrupt for the pwm controller

Example:
@@ -13,5 +19,8 @@ pwm1: pwm@53fb4000 {
#pwm-cells = <2>;
compatible = "fsl,imx53-pwm", "fsl,imx27-pwm";
reg = <0x53fb4000 0x4000>;
+ clocks = <&clks IMX5_CLK_PWM1_IPG_GATE>,
+ <&clks IMX5_CLK_PWM1_HF_GATE>;
+ clock-names = "ipg", "per";
interrupts = <61>;
};
--
1.8.4


\
 
 \ /
  Last update: 2015-03-06 16:21    [W:0.097 / U:0.668 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site