diff options
| author | Stefan Eichenberger <stefan.eichenberger@toradex.com> | 2025-01-20 12:45:22 +0300 |
|---|---|---|
| committer | Shawn Guo <shawnguo@kernel.org> | 2025-02-25 03:32:58 +0300 |
| commit | 2e662a2c3770315d6459be2df7ea39a424ace6fb (patch) | |
| tree | 900e67929c9aae11c2ae67b4ab1b84c3671b50ec | |
| parent | 3a3eefecbf6da11a05016e42606a7c96baea7cda (diff) | |
| download | linux-2e662a2c3770315d6459be2df7ea39a424ace6fb.tar.xz | |
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: Stefan Eichenberger <stefan.eichenberger@toradex.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
| -rw-r--r-- | arch/arm64/boot/dts/freescale/imx8-apalis-v1.1.dtsi | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/freescale/imx8-apalis-v1.1.dtsi b/arch/arm64/boot/dts/freescale/imx8-apalis-v1.1.dtsi index a3fc945aea16..dbea1eefdeec 100644 --- a/arch/arm64/boot/dts/freescale/imx8-apalis-v1.1.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8-apalis-v1.1.dtsi @@ -790,6 +790,22 @@ 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 */ |