Re: [PATCH v3 3/4] arm/dts: AM33XX: Configure pinmuxs for D_CAN1 on AM335x-EVM
From: Tony Lindgren <tony@atomide.com>
Date: 2012-08-24 20:14:47
Also in:
linux-arm-kernel, linux-omap
* AnilKumar Ch [off-list ref] [120816 05:20]:
quoted hunk ↗ jump to hunk
Add D_CAN1 pinctrl node to am3358_pinmux master node to export D_CAN functionality on AM335x EVM according to pinctrl-single driver. Signed-off-by: AnilKumar Ch <redacted> --- Changes from v2: - Incorporated Vaibhav H's comments on v2 * Added dcan0 instances to am33xx.dtsi file Changes from v1: - These two patches separated from c_can DT support patch series. arch/arm/boot/dts/am335x-evm.dts | 12 ++++++++++++ 1 file changed, 12 insertions(+)diff --git a/arch/arm/boot/dts/am335x-evm.dts b/arch/arm/boot/dts/am335x-evm.dts index 5dd8a6b..a64c30a 100644 --- a/arch/arm/boot/dts/am335x-evm.dts +++ b/arch/arm/boot/dts/am335x-evm.dts@@ -18,6 +18,18 @@ reg = <0x80000000 0x10000000>; /* 256 MB */ }; + am3358_pinmux: pinmux@44E10800 {
This should be just &am3358_pinmux as you already include it.
+ pinctrl-names = "default";
+ pinctrl-0 = <&d_can1_pins>;
+
+ d_can1_pins: pinmux_d_can_pins {
+ pinctrl-single,pins = <
+ 0x168 0x2 /* uart0_ctsn.d_can1_tx, OUTPUT | MODE2 */
+ 0x16C 0x32 /* uart0_rtsn.d_can1_rx, INPUT_PULLUP | MODE2 */
+ >;
+ };
+ };
+It would better to claim these pins in the dcan driver entry rather than set them as pins enabled by the pinctrl driver. The reason is that in case you want to enable runtime PM related stuff, like some more advanced wake-up features, for the rx pin you can do it in the driver. Then one nit.. Please lowercase all hex number in this series as that's the style here. Regards, Tony