Clock configuration

Hi,I have been using I2S communication in nrf54l15 DK board with zephyr but couldn't able to get clock to I2s .I couldn't able to get configure clock in overlay file ,can you help me with that.

i2s_rxtx:&i2s20 {
	status = "okay";
	pinctrl-0 = <&i2s20_default>;
	pinctrl-names = "default";
	
};

&pinctrl {
	i2s20_default: i2s20_default {
		group1 {
			psels = <NRF_PSEL(I2S_SCK_M, 0, 2)>,
					<NRF_PSEL(I2S_LRCK_M, 0, 3)>,
					<NRF_PSEL(I2S_SDOUT, 1, 0)>,
					<NRF_PSEL(I2S_SDIN, 1, 1)>;

		};
	};
};
// &clock {
// 	zephyr,deferred-init;
// };

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