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SubjectRe: [PATCH v3] ARM: dts: imx6qdl-rex: add gpio expander pca9535
----- Le 7 Oct 19, à 13:24, shawnguo shawnguo@kernel.org a écrit :

> On Mon, Sep 16, 2019 at 12:43:53PM +0200, Gilles DOFFE wrote:
>> The pca9535 gpio expander is present on the Rex baseboard, but missing
>> from the dtsi.
>> The pca9535 is on i2c2 bus which is common to the three SOM
>> variants (Basic/Pro/Ultra), thus it is activated by default.
>>
>> Add also the new gpio controller and the associated interrupt line
>> MX6QDL_PAD_NANDF_CS3__GPIO6_IO16.
>>
>> Signed-off-by: Gilles DOFFE <gilles.doffe@savoirfairelinux.com>
>> ---
>> arch/arm/boot/dts/imx6qdl-rex.dtsi | 19 +++++++++++++++++++
>> 1 file changed, 19 insertions(+)
>>
>> diff --git a/arch/arm/boot/dts/imx6qdl-rex.dtsi
>> b/arch/arm/boot/dts/imx6qdl-rex.dtsi
>> index 97f1659144ea..8a748ca1b108 100644
>> --- a/arch/arm/boot/dts/imx6qdl-rex.dtsi
>> +++ b/arch/arm/boot/dts/imx6qdl-rex.dtsi
>> @@ -132,6 +132,19 @@
>> pinctrl-0 = <&pinctrl_i2c2>;
>> status = "okay";
>>
>> + pca9535: gpio8@27 {
>
> gpio-expander might be a better node name?
>
> Shawn

Indeed, v4 incoming. ;)

Thank you Shawn.

>
>> + compatible = "nxp,pca9535";
>> + reg = <0x27>;
>> + gpio-controller;
>> + #gpio-cells = <2>;
>> + pinctrl-names = "default";
>> + pinctrl-0 = <&pinctrl_pca9535>;
>> + interrupt-parent = <&gpio6>;
>> + interrupts = <16 IRQ_TYPE_LEVEL_LOW>;
>> + interrupt-controller;
>> + #interrupt-cells = <2>;
>> + };
>> +
>> eeprom@57 {
>> compatible = "atmel,24c02";
>> reg = <0x57>;
>> @@ -237,6 +250,12 @@
>> >;
>> };
>>
>> + pinctrl_pca9535: pca9535 {
>> + fsl,pins = <
>> + MX6QDL_PAD_NANDF_CS3__GPIO6_IO16 0x17059
>> + >;
>> + };
>> +
>> pinctrl_uart1: uart1grp {
>> fsl,pins = <
>> MX6QDL_PAD_CSI0_DAT10__UART1_TX_DATA 0x1b0b1
>> --
>> 2.20.1

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