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ASoC: SOF: amd: add conditional check for acp_clkmux_sel register

Few AMD platforms require ACP ACLK as clock source.
Add conditional check for clock mux selection register for
switching between internal clock and ACP ACLK.

Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
Link: https://lore.kernel.org/r/20230823073340.2829821-5-Vijendar.Mukunda@amd.com
Signed-off-by: Mark Brown <broonie@kernel.org>

authored by

Vijendar Mukunda and committed by
Mark Brown 0d9e4cf5 f3b2f8b7

+3 -1
+3 -1
sound/soc/sof/amd/acp.c
··· 423 423 if (ret < 0) 424 424 dev_err(sdev->dev, "timeout in releasing reset\n"); 425 425 426 - snd_sof_dsp_write(sdev, ACP_DSP_BAR, desc->acp_clkmux_sel, ACP_CLOCK_ACLK); 426 + if (desc->acp_clkmux_sel) 427 + snd_sof_dsp_write(sdev, ACP_DSP_BAR, desc->acp_clkmux_sel, ACP_CLOCK_ACLK); 428 + 427 429 if (desc->ext_intr_enb) 428 430 snd_sof_dsp_write(sdev, ACP_DSP_BAR, desc->ext_intr_enb, 0x01); 429 431