On 14.03.2023 22:08, Bhupesh Sharma wrote:
> Add DTS for Qualcomm qrb4210-rb2 board which uses SM4250 SoC.
>
> This adds debug uart, emmc, uSD and tlmm support along with
> regulators found on this board.
>
> Also defines the 'xo_board' and 'sleep_clk' frequencies for
> this board.
>
> Signed-off-by: Bhupesh Sharma <bhupesh.sharma@xxxxxxxxxx>
> ---
[...]
> +#include <dt-bindings/regulator/qcom,rpmh-regulator.h>
This SoC does not feature RPMh, drop.
> +#include "sm4250.dtsi"
> +
> +/ {
> + model = "Qualcomm Technologies, Inc. QRB4210 RB2";
> + compatible = "qcom,qrb4210-rb2", "qcom,sm4250";
Please add a qcom,qrb4210 between the board-specific and the common SoC
compatibles so that we can address QRB-specific quirks if such ever arise.
> +
> + aliases {
> + serial0 = &uart4;
> + };
> +
[...]
> +&xo_board {
> + clock-frequency = <19200000>;
> +};
> +
> +&sleep_clk {
> + clock-frequency = <32000>;
> +};
Out of alphanumerical order
> +
> +&qupv3_id_0 {
> + status = "okay";
> +};
> +
> +&uart4 {
> + status = "okay";
> +};
> +
> +&rpm_requests {
Out of alphanumerical order
> + regulators-0 {
Will there be more PMICs under this node? If not, drop the -0.
[...]
> +&tlmm {
> + gpio-reserved-ranges = <37 5>, <43 2>, <47 1>,
> + <49 1>, <52 1>, <54 1>,
> + <56 3>, <61 2>, <64 1>,
> + <68 1>, <72 8>, <96 1>;
> +};
Are there *really* so many? Does the board refuse to boot if
you knock off any of these entries? If so, they probably
don't belong here.
> +
> +&sdhc_1 {
> + status = "okay";
Status should go last
> +
> + vmmc-supply = <&vreg_l24a_2p96>; /* emmc power line */
> + vqmmc-supply = <&vreg_l11a_1p8>; /* emmc vddq */
The comments are not very useful, drop please.
> + bus-width = <8>;
This is defined in the SoC dtsi already
> + no-sdio;
> + non-removable;
> +};
> +
> +&sdhc_2 {
> + status = "okay";
> +
> + cd-gpios = <&tlmm 88 GPIO_ACTIVE_HIGH>; /* card detect gpio */
> + vmmc-supply = <&vreg_l22a_2p96>; /* Card power line */
> + vqmmc-supply = <&vreg_l5a_2p96>; /* IO line power */
> + bus-width = <4>;
> + no-sdio;
> + no-emmc;
Ditto
Konrad
> +};
