sound/soc/sof/mediatek/mt8195/mt8195-clk.c

Source file repositories/reference/linux-study-clean/sound/soc/sof/mediatek/mt8195/mt8195-clk.c

File Facts

System
Linux kernel
Corpus path
sound/soc/sof/mediatek/mt8195/mt8195-clk.c
Extension
.c
Size
4161 bytes
Lines
166
Domain
Driver Families
Bucket
sound/soc
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

if (ret) {
			dev_err(dev, "failed to set dsp_sel to clk26m: %d\n", ret);
			return ret;
		}

		ret = clk_set_parent(priv->clk[CLK_TOP_AUDIO_LOCAL_BUS],
				     priv->clk[CLK_TOP_MAINPLL_D7_D2]);
		if (ret) {
			dev_err(dev, "set audio_local_bus failed %d\n", ret);
			return ret;
		}

		ret = clk_set_parent(priv->clk[CLK_TOP_AUDIO_H],
				     priv->clk[CLK_TOP_CLK26M]);
		if (ret) {
			dev_err(dev, "set audio_h_sel failed %d\n", ret);
			return ret;
		}

		ret = adsp_enable_all_clock(sdev);
		if (ret) {
			dev_err(dev, "failed to adsp_enable_clock: %d\n", ret);
			return ret;
		}
	} else {
		adsp_disable_all_clock(sdev);
	}

	return 0;
}

int adsp_clock_on(struct snd_sof_dev *sdev)
{
	/* Open ADSP clock */
	return adsp_default_clk_init(sdev, 1);
}

int adsp_clock_off(struct snd_sof_dev *sdev)
{
	/* Close ADSP clock */
	return adsp_default_clk_init(sdev, 0);
}

Annotation

Implementation Notes