net/can/mpc52xx_can: improve properties and their description

Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Cc: devicetree-discuss@ozlabs.org
Signed-off-by: David S. Miller <davem@davemloft.net>

Documentation/powerpc/dts-bindings/fsl/mpc5200.txt

@@ -181,9 +181,10 @@ External interrupts:
 fsl,mpc5200-mscan nodes
 -----------------------
 In addition to the required compatible-, reg- and interrupt-properites, you can
-also specify which clock shall be used for the bus:
+also specify which clock source shall be used for the controller:
 
-- fsl,mscan-clk-src	- a string describing the clock source. Valid values
-			  are "ip" for IP_CLK and "sys" for SYS_XTAL.
-			  "sys" is the default in case the property is not
+- fsl,mscan-clock-source- a string describing the clock source. Valid values
+			  are:	"ip" for ip bus clock
+				"ref" for reference clock (XTAL)
+			  "ref" is default in case this property is not
 			  present.

drivers/net/can/mscan/mpc52xx_can.c

@@ -130,7 +130,7 @@ static int __devinit mpc5xxx_can_probe(struct of_device *ofdev,
 	 * choice as it has less jitter. For this reason, it is selected
 	 * by default.
 	 */
-	clk_src = of_get_property(np, "fsl,mscan-clk-src", NULL);
+	clk_src = of_get_property(np, "fsl,mscan-clock-source", NULL);
 	if (clk_src && strcmp(clk_src, "ip") == 0)
 		clock_src = MSCAN_CLKSRC_BUS;
 	else
@@ -227,7 +227,6 @@ static int mpc5xxx_can_resume(struct of_device *ofdev)
 
 static struct of_device_id __devinitdata mpc5xxx_can_table[] = {
 	{.compatible = "fsl,mpc5200-mscan"},
-	{.compatible = "fsl,mpc5200b-mscan"},
 	{},
 };