Thread (14 messages) 14 messages, 4 authors, 2021-04-21

Re: [PATCH v3 3/4] arm: dts: imx: Add i.mx6q DaSheng COM-9XX SBC board support

From: Fabio Estevam <festevam@gmail.com>
Date: 2021-04-20 14:27:23
Also in: linux-devicetree, linux-media, lkml

Hi Dillon,

On Thu, Apr 15, 2021 at 1:05 AM [off-list ref] wrote:
+               green {
+                       gpios = <&gpio4 8 0>;
Please use GPIO_ACTIVE_HIGH label instead:
gpios = <&gpio4 8 GPIO_ACTIVE_HIGH>;
+&clks {
+       assigned-clocks = <&clks IMX6QDL_CLK_LDB_DI0_SEL>,
+                         <&clks IMX6QDL_CLK_LDB_DI1_SEL>;
+       assigned-clock-parents = <&clks IMX6QDL_CLK_PLL3_USB_OTG>,
+                                <&clks IMX6QDL_CLK_PLL3_USB_OTG>;
+};
You are setting the LDB clock parent, but you don't use LDB in this
devicetree. You could simply remove this.
+&ecspi1 {
+       cs-gpios = <&gpio4 9 GPIO_ACTIVE_LOW>;
+       pinctrl-names = "default";
+       pinctrl-0 = <&pinctrl_ecspi1>;
+       status = "okay";
+
+       flash: m25p80@0 {
Node names should be generic:

m25p80: flash@0
+&iomuxc {
+       pinctrl-names = "default";
+       pinctrl-0 = <&pinctrl_hog>;
+
+       imx6qdl-ds {
+               pinctrl_hog: hoggrp {
+                       fsl,pins = <
+                               MX6QDL_PAD_NANDF_D0__GPIO2_IO00 0x1b0b0
+                               MX6QDL_PAD_NANDF_D1__GPIO2_IO01 0x1b0b0
+                               MX6QDL_PAD_GPIO_0__CCM_CLKO1    0x130b0
This could be part of the pinctrl_ov2659 group as it provides the
clock for the camera.

Please try to keep in the hoggrp only the pins that cannot be
controlled by any other node.
+&wdog1 {
+       status = "okay";
+};
+
+&wdog2 {
+       pinctrl-names = "default";
+       pinctrl-0 = <&pinctrl_wdog>;
+       fsl,ext-reset-output;
+       status = "disabled";
Wouldn't it be better to enable wdog2 and disable wdog1 instead? wdog2
provides a POR, which is preferred.

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