linux-kernel - [PATCH] ASoC: cs35l41: Steam Deck Shared boost properties quirk

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Message-Id: <20230301103113.12612-1-lucas.tanure@collabora.com>
Date:   Wed,  1 Mar 2023 10:31:13 +0000
From:   Lucas Tanure <lucas.tanure@...labora.com>
To:     David Rhodes <david.rhodes@...rus.com>,
        Charles Keepax <ckeepax@...nsource.cirrus.com>,
        Liam Girdwood <lgirdwood@...il.com>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Mark Brown <broonie@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Jaroslav Kysela <perex@...ex.cz>,
        "Takashi Iwai --cc=alsa-devel @ alsa-project . org" <tiwai@...e.com>
Cc:     patches@...nsource.cirrus.com, linux-kernel@...r.kernel.org,
        kernel@...labora.com, Lucas Tanure <lucas.tanure@...labora.com>
Subject: [PATCH] ASoC: cs35l41: Steam Deck Shared boost properties quirk

Add support for Steam Deck bios old properties. If a Steam deck didn't
upgrade the BIOS, the driver should be able to handle the previous
properties for shared boost types.

Signed-off-by: Lucas Tanure <lucas.tanure@...labora.com>
---
 sound/soc/codecs/cs35l41.c | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/sound/soc/codecs/cs35l41.c b/sound/soc/codecs/cs35l41.c
index c223d83e02cf..d5f9eee88cba 100644
--- a/sound/soc/codecs/cs35l41.c
+++ b/sound/soc/codecs/cs35l41.c
@@ -1037,9 +1037,17 @@ static int cs35l41_handle_pdata(struct device *dev, struct cs35l41_hw_cfg *hw_cf
 	unsigned int val;
 	int ret;
 
-	ret = device_property_read_u32(dev, "cirrus,boost-type", &val);
-	if (ret >= 0)
-		hw_cfg->bst_type = val;
+	if (device_property_read_bool(dev, "cirrus,shared-boost-active")){
+		hw_cfg->bst_type = CS35L41_SHD_BOOST_ACTV;
+	}
+	else if (device_property_read_bool(dev, "cirrus,shared-boost-passive")) {
+		hw_cfg->bst_type = CS35L41_SHD_BOOST_PASS;
+	}
+	else {
+		ret = device_property_read_u32(dev, "cirrus,boost-type", &val);
+		if (ret >= 0)
+			hw_cfg->bst_type = val;
+	}
 
 	ret = device_property_read_u32(dev, "cirrus,boost-peak-milliamp", &val);
 	if (ret >= 0)
-- 
2.39.2