From: Heiko Stuebner <heiko.stuebner@cherry.de>
Using a combination of fixed clock and gpio-gate clock works but does
not describe the actual hardware. Use the gated-fixed-clock binding
to describe this in a nicer way.
Signed-off-by: Heiko Stuebner <heiko.stuebner@cherry.de>
---
arch/arm64/boot/dts/rockchip/rk3588-jaguar.dts | 13 ++++---------
1 file changed, 4 insertions(+), 9 deletions(-)
diff --git a/arch/arm64/boot/dts/rockchip/rk3588-jaguar.dts b/arch/arm64/boot/dts/rockchip/rk3588-jaguar.dts
index 952affaf455c..6eea4e0b6ca4 100644
--- a/arch/arm64/boot/dts/rockchip/rk3588-jaguar.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3588-jaguar.dts
@@ -90,21 +90,16 @@ led-1 {
* 100MHz reference clock for PCIe peripherals from PI6C557-05BLE
* clock generator.
* The clock output is gated via the OE pin on the clock generator.
- * This is modeled as a fixed-clock plus a gpio-gate-clock.
*/
- pcie_refclk_gen: pcie-refclk-gen-clock {
- compatible = "fixed-clock";
+ pcie_refclk: pcie-clock-generator {
+ compatible = "gated-fixed-clock";
#clock-cells = <0>;
clock-frequency = <100000000>;
- };
-
- pcie_refclk: pcie-refclk-clock {
- compatible = "gpio-gate-clock";
- clocks = <&pcie_refclk_gen>;
- #clock-cells = <0>;
+ clock-output-names = "pcie3_refclk";
enable-gpios = <&gpio0 RK_PC6 GPIO_ACTIVE_LOW>; /* PCIE30X4_CLKREQN_M0 */
pinctrl-names = "default";
pinctrl-0 = <&pcie30x4_clkreqn_m0>;
+ vdd-supply = <&vcca_3v3_s0>;
};
pps {
--
2.47.2
Hi Heiko,
On 2/5/26 11:21 AM, Heiko Stuebner wrote:
> From: Heiko Stuebner <heiko.stuebner@cherry.de>
>
> Using a combination of fixed clock and gpio-gate clock works but does
> not describe the actual hardware. Use the gated-fixed-clock binding
> to describe this in a nicer way.
>
You also add a regulator as supply :)
> Signed-off-by: Heiko Stuebner <heiko.stuebner@cherry.de>
> ---
> arch/arm64/boot/dts/rockchip/rk3588-jaguar.dts | 13 ++++---------
> 1 file changed, 4 insertions(+), 9 deletions(-)
>
> diff --git a/arch/arm64/boot/dts/rockchip/rk3588-jaguar.dts b/arch/arm64/boot/dts/rockchip/rk3588-jaguar.dts
> index 952affaf455c..6eea4e0b6ca4 100644
> --- a/arch/arm64/boot/dts/rockchip/rk3588-jaguar.dts
> +++ b/arch/arm64/boot/dts/rockchip/rk3588-jaguar.dts
> @@ -90,21 +90,16 @@ led-1 {
> * 100MHz reference clock for PCIe peripherals from PI6C557-05BLE
> * clock generator.
> * The clock output is gated via the OE pin on the clock generator.
> - * This is modeled as a fixed-clock plus a gpio-gate-clock.
> */
I'm assuming the whole comment can be removed as it was just the
reasoning behind two clocks and now we only have one which is pretty
self explanatory?
> - pcie_refclk_gen: pcie-refclk-gen-clock {
> - compatible = "fixed-clock";
> + pcie_refclk: pcie-clock-generator {
> + compatible = "gated-fixed-clock";
> #clock-cells = <0>;
> clock-frequency = <100000000>;
> - };
> -
> - pcie_refclk: pcie-refclk-clock {
> - compatible = "gpio-gate-clock";
> - clocks = <&pcie_refclk_gen>;
> - #clock-cells = <0>;
> + clock-output-names = "pcie3_refclk";
Why change the name? I'm also wondering if we cannot have free backward
compatibility by setting this to pcie-refclk-clock to match the old name?
Same remarks for Tiger (patch 2).
Change looks fine though.
Cheers,
Quentin
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