[PATCH v2 2/2] net: flexcan: add transceiver switch gpios support

Shawn Guo shawn.guo at linaro.org
Thu Jun 28 02:34:29 EDT 2012


On Thu, Jun 28, 2012 at 02:14:39PM +0800, Hui Wang wrote:
> >diff --git a/Documentation/devicetree/bindings/net/can/fsl-flexcan.txt b/Documentation/devicetree/bindings/net/can/fsl-flexcan.txt
> >index 8ff324e..e0dbac7 100644
> >--- a/Documentation/devicetree/bindings/net/can/fsl-flexcan.txt
> >+++ b/Documentation/devicetree/bindings/net/can/fsl-flexcan.txt
> >@@ -15,6 +15,8 @@ Required properties:
> > Optional properties:
> > - clock-frequency : The oscillator frequency driving the flexcan device
> >+- phy-enable-gpios : Specify the gpio used to enable phy
> >+- phy-standby-gpios : Specify the gpio used to put phy into STANDBY mode
> > Example:
> Do we need to add new added entries in the example section as well.
> 
> E.g.
> 
> +        phy-enable-gpios = <&gpio1 4 0>; /* GPIO1_4, active high*/
> +        phy-standby-gpios = <&gpio1 2 1>; /* GPIO1_2, active low */
> 
I chose not to because after all these two are optional properties.

> >diff --git a/drivers/net/can/flexcan.c b/drivers/net/can/flexcan.c
> >index 38c0690..1ce3f9e 100644
> >--- a/drivers/net/can/flexcan.c
> >+++ b/drivers/net/can/flexcan.c
> >@@ -26,6 +26,7 @@
> > #include <linux/can/platform/flexcan.h>
> > #include <linux/clk.h>
> > #include <linux/delay.h>
> >+#include <linux/gpio.h>
> It seems <linux/of_gpio.h> already unconditionally includes this header.

Documentation/SubmitChecklist

1: If you use a facility then #include the file that defines/declares
   that facility.  Don't depend on other header files pulling in ones
   that you use.

-- 
Regards,
Shawn




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