Adding upstream version 6.1.76.upstream/6.1.76

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 101 insertions, 0 deletions

diff --git a/sound/soc/sof/mediatek/mt8186/mt8186-clk.c b/sound/soc/sof/mediatek/mt8186/mt8186-clk.c
new file mode 100644
index 000000000..2df3b7ae1
--- /dev/null
+++ b/sound/soc/sof/mediatek/mt8186/mt8186-clk.c
@@ -0,0 +1,101 @@
+// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
+//
+// Copyright(c) 2022 Mediatek Corporation. All rights reserved.
+//
+// Author: Allen-KH Cheng <allen-kh.cheng@mediatek.com>
+//         Tinghan Shen <tinghan.shen@mediatek.com>
+//
+// Hardware interface for mt8186 DSP clock
+
+#include <linux/clk.h>
+#include <linux/pm_runtime.h>
+#include <linux/io.h>
+
+#include "../../sof-audio.h"
+#include "../../ops.h"
+#include "../adsp_helper.h"
+#include "mt8186.h"
+#include "mt8186-clk.h"
+
+static const char *adsp_clks[ADSP_CLK_MAX] = {
+	[CLK_TOP_AUDIODSP] = "audiodsp",
+	[CLK_TOP_ADSP_BUS] = "adsp_bus",
+};
+
+int mt8186_adsp_init_clock(struct snd_sof_dev *sdev)
+{
+	struct adsp_priv *priv = sdev->pdata->hw_pdata;
+	struct device *dev = sdev->dev;
+	int i;
+
+	priv->clk = devm_kcalloc(dev, ADSP_CLK_MAX, sizeof(*priv->clk), GFP_KERNEL);
+	if (!priv->clk)
+		return -ENOMEM;
+
+	for (i = 0; i < ADSP_CLK_MAX; i++) {
+		priv->clk[i] = devm_clk_get(dev, adsp_clks[i]);
+
+		if (IS_ERR(priv->clk[i]))
+			return PTR_ERR(priv->clk[i]);
+	}
+
+	return 0;
+}
+
+static int adsp_enable_all_clock(struct snd_sof_dev *sdev)
+{
+	struct adsp_priv *priv = sdev->pdata->hw_pdata;
+	struct device *dev = sdev->dev;
+	int ret;
+
+	ret = clk_prepare_enable(priv->clk[CLK_TOP_AUDIODSP]);
+	if (ret) {
+		dev_err(dev, "%s clk_prepare_enable(audiodsp) fail %d\n",
+			__func__, ret);
+		return ret;
+	}
+
+	ret = clk_prepare_enable(priv->clk[CLK_TOP_ADSP_BUS]);
+	if (ret) {
+		dev_err(dev, "%s clk_prepare_enable(adsp_bus) fail %d\n",
+			__func__, ret);
+		clk_disable_unprepare(priv->clk[CLK_TOP_AUDIODSP]);
+		return ret;
+	}
+
+	return 0;
+}
+
+static void adsp_disable_all_clock(struct snd_sof_dev *sdev)
+{
+	struct adsp_priv *priv = sdev->pdata->hw_pdata;
+
+	clk_disable_unprepare(priv->clk[CLK_TOP_ADSP_BUS]);
+	clk_disable_unprepare(priv->clk[CLK_TOP_AUDIODSP]);
+}
+
+int mt8186_adsp_clock_on(struct snd_sof_dev *sdev)
+{
+	struct device *dev = sdev->dev;
+	int ret;
+
+	ret = adsp_enable_all_clock(sdev);
+	if (ret) {
+		dev_err(dev, "failed to adsp_enable_clock: %d\n", ret);
+		return ret;
+	}
+	snd_sof_dsp_write(sdev, DSP_REG_BAR, ADSP_CK_EN,
+			  UART_EN | DMA_EN | TIMER_EN | COREDBG_EN | CORE_CLK_EN);
+	snd_sof_dsp_write(sdev, DSP_REG_BAR, ADSP_UART_CTRL,
+			  UART_BCLK_CG | UART_RSTN);
+
+	return 0;
+}
+
+void mt8186_adsp_clock_off(struct snd_sof_dev *sdev)
+{
+	snd_sof_dsp_write(sdev, DSP_REG_BAR, ADSP_CK_EN, 0);
+	snd_sof_dsp_write(sdev, DSP_REG_BAR, ADSP_UART_CTRL, 0);
+	adsp_disable_all_clock(sdev);
+}
+