Commit 2e662a2c authored by Stefan Eichenberger's avatar Stefan Eichenberger Committed by Shawn Guo
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arm64: dts: imx8-apalis: add clock configuration for 44.1 kHz hdmi audio 



Currently, HDMI audio cannot play sound at a 44.1 kHz sample rate due to
a clock frequency mismatch. This update resolves the issue by allowing
the sai driver to change the clock parent to AUDIO_PLL_1 when the sample
rate is 44.1 kHz. It also ensures that AUDIO_PLL_1 operates at the
correct frequency for this configuration.

Signed-off-by: default avatarStefan Eichenberger <stefan.eichenberger@toradex.com>
Signed-off-by: default avatarShawn Guo <shawnguo@kernel.org>
parent 3a3eefec

arch/arm64/boot/dts/freescale/imx8-apalis-v1.1.dtsi

+16 −0
Original line number Diff line number Diff line
@@ -790,6 +790,22 @@ &sai1 { 
	status = "okay";

};



/* Apalis HDMI Audio */

&sai5 {

	assigned-clocks = <&acm IMX_ADMA_ACM_SAI5_MCLK_SEL>,

			  <&acm IMX_ADMA_ACM_AUD_CLK1_SEL>,

			  <&clk IMX_SC_R_AUDIO_PLL_0 IMX_SC_PM_CLK_PLL>,

			  <&clk IMX_SC_R_AUDIO_PLL_0 IMX_SC_PM_CLK_SLV_BUS>,

			  <&clk IMX_SC_R_AUDIO_PLL_0 IMX_SC_PM_CLK_MST_BUS>,

			  <&clk IMX_SC_R_AUDIO_PLL_1 IMX_SC_PM_CLK_PLL>,

			  <&clk IMX_SC_R_AUDIO_PLL_1 IMX_SC_PM_CLK_SLV_BUS>,

			  <&clk IMX_SC_R_AUDIO_PLL_1 IMX_SC_PM_CLK_MST_BUS>,

			  <&sai5_lpcg 0>;

	assigned-clock-parents = <&aud_pll_div0_lpcg 0>, <&aud_rec1_lpcg 0>;

	assigned-clock-rates = <0>, <0>, <786432000>, <49152000>, <12288000>,

			       <722534400>, <45158400>, <11289600>, <49152000>;

};



/* TODO: Apalis SATA1 */



/* Apalis SPDIF1 */