linux-kernel - [PATCH 6/9] ASoC: amd: vg: update acp init and deinit sequence

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Date:   Wed, 23 Feb 2022 12:49:35 +0530
From:   Vijendar Mukunda <Vijendar.Mukunda@....com>
To:     <broonie@...nel.org>, <alsa-devel@...a-project.org>
CC:     <Alexander.Deucher@....com>, <Sunil-kumar.Dommati@....com>,
        <krisman@...labora.com>, <wtli@...oton.com>,
        Vijendar Mukunda <Vijendar.Mukunda@....com>,
        Liam Girdwood <lgirdwood@...il.com>,
        "Jaroslav Kysela" <perex@...ex.cz>, Takashi Iwai <tiwai@...e.com>,
        Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>,
        open list <linux-kernel@...r.kernel.org>
Subject: [PATCH 6/9] ASoC: amd: vg: update acp init and deinit sequence

As part of ACP programming sequence, ACP_CONTROL and ACP_CLKMUX_SEL
registers should be updated during acp init and de-init sequence.
This patch updates register sequence during ACP init and
deinit.

Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@....com>
---
 sound/soc/amd/vangogh/pci-acp5x.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/sound/soc/amd/vangogh/pci-acp5x.c b/sound/soc/amd/vangogh/pci-acp5x.c
index 2b6b9edc36e2..e0df17c88e8e 100644
--- a/sound/soc/amd/vangogh/pci-acp5x.c
+++ b/sound/soc/amd/vangogh/pci-acp5x.c
@@ -92,12 +92,14 @@ static int acp5x_init(void __iomem *acp5x_base)
 		pr_err("ACP5x power on failed\n");
 		return ret;
 	}
+	acp_writel(0x01, acp5x_base + ACP_CONTROL);
 	/* Reset */
 	ret = acp5x_reset(acp5x_base);
 	if (ret) {
 		pr_err("ACP5x reset failed\n");
 		return ret;
 	}
+	acp_writel(0x03, acp5x_base + ACP_CLKMUX_SEL);
 	acp5x_enable_interrupts(acp5x_base);
 	return 0;
 }
@@ -113,6 +115,8 @@ static int acp5x_deinit(void __iomem *acp5x_base)
 		pr_err("ACP5x reset failed\n");
 		return ret;
 	}
+	acp_writel(0x00, acp5x_base + ACP_CLKMUX_SEL);
+	acp_writel(0x00, acp5x_base + ACP_CONTROL);
 	return 0;
 }
 
-- 
2.17.1