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SubjectRe: [PATCH v2 4/6] ARM: dts: sunxi: h3/h5: Update MBUS node
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On 10/4/21 10:27 AM, Samuel Holland wrote:
> In order to support memory dynamic frequency scaling (MDFS), the MBUS
> binding now requires enumerating more resources. Provide them in the
> device tree.
>
> Since the H3 and H5 have different clock divider limits, they need
> separate compatibles.
>
> Signed-off-by: Samuel Holland <samuel@sholland.org>
> ---
> arch/arm/boot/dts/sun8i-h3.dtsi | 4 ++++
> arch/arm/boot/dts/sunxi-h3-h5.dtsi | 11 ++++++++---
> arch/arm64/boot/dts/allwinner/sun50i-h5.dtsi | 4 ++++
> 3 files changed, 16 insertions(+), 3 deletions(-)
>
> diff --git a/arch/arm/boot/dts/sun8i-h3.dtsi b/arch/arm/boot/dts/sun8i-h3.dtsi
> index 4e89701df91f..43acb98cf390 100644
> --- a/arch/arm/boot/dts/sun8i-h3.dtsi
> +++ b/arch/arm/boot/dts/sun8i-h3.dtsi
> @@ -282,6 +282,10 @@ &display_clocks {
> compatible = "allwinner,sun8i-h3-de2-clk";
> };
>
> +&mbus {
> + compatible = "allwinner,sun8i-h3-mbus";
> +};
> +
> &mmc0 {
> compatible = "allwinner,sun7i-a20-mmc";
> clocks = <&ccu CLK_BUS_MMC0>,
> diff --git a/arch/arm/boot/dts/sunxi-h3-h5.dtsi b/arch/arm/boot/dts/sunxi-h3-h5.dtsi
> index c7428df9469e..3a683e190dab 100644
> --- a/arch/arm/boot/dts/sunxi-h3-h5.dtsi
> +++ b/arch/arm/boot/dts/sunxi-h3-h5.dtsi
> @@ -568,9 +568,14 @@ external_mdio: mdio@2 {
> };
>
> mbus: dram-controller@1c62000 {
> - compatible = "allwinner,sun8i-h3-mbus";
> - reg = <0x01c62000 0x1000>;
> - clocks = <&ccu CLK_MBUS>;
> + /* compatible is in per SoC .dtsi file */
> + reg = <0x01c62000 0x1000>,
> + <0x01c63000 0x1000>;
> + reg-names = "mbus", "dram";
> + clocks = <&ccu CLK_MBUS>,
> + <&ccu CLK_DRAM>,
> + <&ccu CLK_BUS_DRAM>;
> + clock-names = "mbus", "dram", "bus";
> #address-cells = <1>;
> #size-cells = <1>;
> dma-ranges = <0x00000000 0x40000000 0xc0000000>;
> diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h5.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-h5.dtsi
> index 578a63dedf46..35d5d238e313 100644
> --- a/arch/arm64/boot/dts/allwinner/sun50i-h5.dtsi
> +++ b/arch/arm64/boot/dts/allwinner/sun50i-h5.dtsi
> @@ -233,6 +233,10 @@ &display_clocks {
> compatible = "allwinner,sun50i-h5-de2-clk";
> };
>
> +&mbus {
> + compatible = "allwinner,sun50i-h5-mbus";
> +};
> +
> &mmc0 {
> compatible = "allwinner,sun50i-h5-mmc",
> "allwinner,sun50i-a64-mmc";
>

Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>

--
Best Regards,
Chanwoo Choi
Samsung Electronics

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