linux-kernel - [PATCH v2 3/9] ASoC: codecs: lpass-rx-macro: add support for SM8550

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Date:   Mon, 13 Mar 2023 08:54:39 +0100
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
        Banajit Goswami <bgoswami@...cinc.com>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>, alsa-devel@...a-project.org,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Subject: [PATCH v2 3/9] ASoC: codecs: lpass-rx-macro: add support for SM8550

Add support for the RX macro codec on Qualcomm SM8550.  SM8550 does not
use NPL clock, thus add flags allowing to skip it.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Reviewed-by: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>

---

Changes since v1:
1. Move the flag define to common header
---
 sound/soc/codecs/lpass-macro-common.h |  3 +++
 sound/soc/codecs/lpass-rx-macro.c     | 36 +++++++++++++++++++++------
 2 files changed, 31 insertions(+), 8 deletions(-)

diff --git a/sound/soc/codecs/lpass-macro-common.h b/sound/soc/codecs/lpass-macro-common.h
index f2cbf9fe2c6e..4eb886565ea3 100644
--- a/sound/soc/codecs/lpass-macro-common.h
+++ b/sound/soc/codecs/lpass-macro-common.h
@@ -6,6 +6,9 @@
 #ifndef __LPASS_MACRO_COMMON_H__
 #define __LPASS_MACRO_COMMON_H__
 
+/* NPL clock is expected */
+#define LPASS_MACRO_FLAG_HAS_NPL_CLOCK		BIT(0)
+
 struct lpass_macro {
 	struct device *macro_pd;
 	struct device *dcodec_pd;
diff --git a/sound/soc/codecs/lpass-rx-macro.c b/sound/soc/codecs/lpass-rx-macro.c
index a73a7d7a1c0a..8519794e36fb 100644
--- a/sound/soc/codecs/lpass-rx-macro.c
+++ b/sound/soc/codecs/lpass-rx-macro.c
@@ -3491,7 +3491,10 @@ static int rx_macro_register_mclk_output(struct rx_macro *rx)
 	struct clk_init_data init;
 	int ret;
 
-	parent_clk_name = __clk_get_name(rx->npl);
+	if (rx->npl)
+		parent_clk_name = __clk_get_name(rx->npl);
+	else
+		parent_clk_name = __clk_get_name(rx->mclk);
 
 	init.name = clk_name;
 	init.ops = &swclk_gate_ops;
@@ -3521,10 +3524,13 @@ static const struct snd_soc_component_driver rx_macro_component_drv = {
 static int rx_macro_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
+	kernel_ulong_t flags;
 	struct rx_macro *rx;
 	void __iomem *base;
 	int ret;
 
+	flags = (kernel_ulong_t)device_get_match_data(dev);
+
 	rx = devm_kzalloc(dev, sizeof(*rx), GFP_KERNEL);
 	if (!rx)
 		return -ENOMEM;
@@ -3541,9 +3547,11 @@ static int rx_macro_probe(struct platform_device *pdev)
 	if (IS_ERR(rx->mclk))
 		return PTR_ERR(rx->mclk);
 
-	rx->npl = devm_clk_get(dev, "npl");
-	if (IS_ERR(rx->npl))
-		return PTR_ERR(rx->npl);
+	if (flags & LPASS_MACRO_FLAG_HAS_NPL_CLOCK) {
+		rx->npl = devm_clk_get(dev, "npl");
+		if (IS_ERR(rx->npl))
+			return PTR_ERR(rx->npl);
+	}
 
 	rx->fsgen = devm_clk_get(dev, "fsgen");
 	if (IS_ERR(rx->fsgen))
@@ -3655,10 +3663,22 @@ static int rx_macro_remove(struct platform_device *pdev)
 }
 
 static const struct of_device_id rx_macro_dt_match[] = {
-	{ .compatible = "qcom,sc7280-lpass-rx-macro" },
-	{ .compatible = "qcom,sm8250-lpass-rx-macro" },
-	{ .compatible = "qcom,sm8450-lpass-rx-macro" },
-	{ .compatible = "qcom,sc8280xp-lpass-rx-macro" },
+	{
+		.compatible = "qcom,sc7280-lpass-rx-macro",
+		.data = (void *)LPASS_MACRO_FLAG_HAS_NPL_CLOCK,
+
+	}, {
+		.compatible = "qcom,sm8250-lpass-rx-macro",
+		.data = (void *)LPASS_MACRO_FLAG_HAS_NPL_CLOCK,
+	}, {
+		.compatible = "qcom,sm8450-lpass-rx-macro",
+		.data = (void *)LPASS_MACRO_FLAG_HAS_NPL_CLOCK,
+	}, {
+		.compatible = "qcom,sm8550-lpass-rx-macro",
+	}, {
+		.compatible = "qcom,sc8280xp-lpass-rx-macro",
+		.data = (void *)LPASS_MACRO_FLAG_HAS_NPL_CLOCK,
+	},
 	{ }
 };
 MODULE_DEVICE_TABLE(of, rx_macro_dt_match);
-- 
2.34.1