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    SubjectRe: [PATCH 4/4] arm64: dts: st: add rcc support in stm32mp251
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    On 06/11/2023 15:18, gabriel.fernandez@foss.st.com wrote:
    > From: Gabriel Fernandez <gabriel.fernandez@foss.st.com>
    >
    > Add RCC support used for to manage clocks and resets on stm32mp251.
    >
    > Signed-off-by: Gabriel Fernandez <gabriel.fernandez@foss.st.com>
    > ---
    > arch/arm64/boot/dts/st/stm32mp251.dtsi | 59 ++++++++++++++------------
    > 1 file changed, 31 insertions(+), 28 deletions(-)
    >
    > diff --git a/arch/arm64/boot/dts/st/stm32mp251.dtsi b/arch/arm64/boot/dts/st/stm32mp251.dtsi
    > index 124403f5f1f4..698d0f68b98d 100644
    > --- a/arch/arm64/boot/dts/st/stm32mp251.dtsi
    > +++ b/arch/arm64/boot/dts/st/stm32mp251.dtsi
    > @@ -3,7 +3,9 @@
    > * Copyright (C) STMicroelectronics 2023 - All Rights Reserved
    > * Author: Alexandre Torgue <alexandre.torgue@foss.st.com> for STMicroelectronics.
    > */
    > +#include <dt-bindings/clock/stm32mp25-clks.h>
    > #include <dt-bindings/interrupt-controller/arm-gic.h>
    > +#include <dt-bindings/reset/stm32mp25-resets.h>
    >
    > / {
    > #address-cells = <2>;
    > @@ -35,22 +37,10 @@ arm_wdt: watchdog {
    > };
    >
    > clocks {
    > - ck_flexgen_08: ck-flexgen-08 {
    > + clk_rcbsec: clk-rcbsec {
    > #clock-cells = <0>;
    > compatible = "fixed-clock";
    > - clock-frequency = <100000000>;
    > - };
    > -
    > - ck_flexgen_51: ck-flexgen-51 {
    > - #clock-cells = <0>;
    > - compatible = "fixed-clock";
    > - clock-frequency = <200000000>;
    > - };
    > -
    > - ck_icn_ls_mcu: ck-icn-ls-mcu {
    > - #clock-cells = <0>;
    > - compatible = "fixed-clock";
    > - clock-frequency = <200000000>;
    > + clock-frequency = <64000000>;
    > };
    > };
    >
    > @@ -122,7 +112,7 @@ usart2: serial@400e0000 {
    > compatible = "st,stm32h7-uart";
    > reg = <0x400e0000 0x400>;
    > interrupts = <GIC_SPI 115 IRQ_TYPE_LEVEL_HIGH>;
    > - clocks = <&ck_flexgen_08>;
    > + clocks = <&rcc CK_KER_USART2>;
    > status = "disabled";
    > };
    >
    > @@ -131,7 +121,7 @@ sdmmc1: mmc@48220000 {
    > arm,primecell-periphid = <0x00353180>;
    > reg = <0x48220000 0x400>, <0x44230400 0x8>;
    > interrupts = <GIC_SPI 123 IRQ_TYPE_LEVEL_HIGH>;
    > - clocks = <&ck_flexgen_51>;
    > + clocks = <&rcc CK_KER_SDMMC1 >;
    > clock-names = "apb_pclk";
    > cap-sd-highspeed;
    > cap-mmc-highspeed;
    > @@ -140,6 +130,19 @@ sdmmc1: mmc@48220000 {
    > };
    > };
    >
    > + rcc: rcc@44200000 {

    Node names should be generic. See also an explanation and list of
    examples (not exhaustive) in DT specification:
    https://devicetree-specification.readthedocs.io/en/latest/chapter2-devicetree-basics.html#generic-names-recommendation


    Best regards,
    Krzysztof

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