allo-digione: 192kHz clicking sound fix (16fc06e2) · Commits · 方亚芬 / raspberrypi_linux

sound/soc/bcm/allo-digione.c

+55 −58

Original line number	Diff line number	Diff line
		@@ -28,7 +28,7 @@

		#include "../codecs/wm8804.h"

		static short int auto_shutdown_output = 0;
		static short int auto_shutdown_output;
		module_param(auto_shutdown_output, short,
		S_IRUSR \| S_IWUSR \| S_IRGRP \| S_IWGRP);
		MODULE_PARM_DESC(auto_shutdown_output, "Shutdown SP/DIF output if playback is stopped");
		@@ -75,6 +75,7 @@ static int snd_allo_digione_startup(struct snd_pcm_substream *substream)
		/* turn on digital output */
		struct snd_soc_pcm_runtime *rtd = substream->private_data;
		struct snd_soc_codec *codec = rtd->codec;

		snd_soc_update_bits(codec, WM8804_PWRDN, 0x3c, 0x00);
		return 0;
		}
		@@ -86,6 +87,7 @@ static void snd_allo_digione_shutdown(struct snd_pcm_substream *substream)
		/* turn off output */
		struct snd_soc_pcm_runtime *rtd = substream->private_data;
		struct snd_soc_codec *codec = rtd->codec;

		snd_soc_update_bits(codec, WM8804_PWRDN, 0x3c, 0x3c);
		}
		}
		@@ -107,14 +109,8 @@ static int snd_allo_digione_hw_params(struct snd_pcm_substream *substream,
		int ret;

		samplerate = params_rate(params);

		if (samplerate <= 96000) {
		mclk_freq = samplerate * 256;
		mclk_div = WM8804_MCLKDIV_256FS;
		} else {
		mclk_freq = samplerate * 128;
		mclk_div = WM8804_MCLKDIV_128FS;
		}

		sysclk = snd_allo_digione_enable_clock(samplerate);

		@@ -211,6 +207,7 @@ static int snd_allo_digione_probe(struct platform_device *pdev)
		if (pdev->dev.of_node) {
		struct device_node *i2s_node;
		struct snd_soc_dai_link *dai = &snd_allo_digione_dai[0];

		i2s_node = of_parse_phandle(pdev->dev.of_node,
		"i2s-controller", 0);