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imx6 - pincontrol - iomux configuration in device tree

Question asked by Abdul Raseeth Ansari on Oct 8, 2014
Latest reply on Oct 9, 2014 by igorpadykov

Hi,

 

We are using imx6Q sabresd platform for our development with Linux 3.10.17_1.0.0-GA BSP.

 

In device tree, the UART1 IOMUX configuration is done in "arch/arm/boot/dts/imx6qdl.dtsi" file as mentioned below.

 

uart1 {
pinctrl_uart1_1: uart1grp-1 {
fsl,pins = <
MX6QDL_PAD_CSI0_DAT10__UART1_TX_DATA 0x1b0b1
MX6QDL_PAD_CSI0_DAT11__UART1_RX_DATA 0x1b0b1
>;
};
};

 

We would like to know, in which file the IOMUX configuration will be called?

We have gone through the "linux-imx/drivers/tty/serial/imx.c" file. But we couldn't find the below function for IOMUX configuration

"devm_pinctrl_get_select_default"

 

In addition, the flexcan IOMUX configuration is called  in "drivers/net/can/flexcan.c" file as mentioned below (from the probe function call)

 

pinctrl = devm_pinctrl_get_select_default(&pdev->dev);
if (IS_ERR(pinctrl))
return PTR_ERR(pinctrl);

 

Please suggest us for better understanding.

 

 

Thank You,

Regards,

Ansari

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