mirror of
https://github.com/Ysurac/openmptcprouter.git
synced 2025-02-15 04:42:02 +00:00
59 lines
1.4 KiB
Diff
59 lines
1.4 KiB
Diff
From e2ecde1bc2a1d6c358bf71ab6b6643f66b935d3a Mon Sep 17 00:00:00 2001
|
|
From: Phil Elwell <phil@raspberrypi.com>
|
|
Date: Thu, 4 Mar 2021 14:49:23 +0000
|
|
Subject: [PATCH] ASoC: dwc: Support set_bclk_ratio
|
|
|
|
Signed-off-by: Phil Elwell <phil@raspberrypi.com>
|
|
---
|
|
sound/soc/dwc/dwc-i2s.c | 35 +++++++++++++++++++++++++++++++++++
|
|
1 file changed, 35 insertions(+)
|
|
|
|
--- a/sound/soc/dwc/dwc-i2s.c
|
|
+++ b/sound/soc/dwc/dwc-i2s.c
|
|
@@ -351,11 +351,46 @@ static int dw_i2s_set_fmt(struct snd_soc
|
|
return ret;
|
|
}
|
|
|
|
+static int dw_i2s_set_bclk_ratio(struct snd_soc_dai *cpu_dai,
|
|
+ unsigned int ratio)
|
|
+{
|
|
+ struct dw_i2s_dev *dev = snd_soc_dai_get_drvdata(cpu_dai);
|
|
+ struct i2s_clk_config_data *config = &dev->config;
|
|
+
|
|
+ dev_err(dev->dev, "%s(%d)\n", __func__, ratio);
|
|
+ switch (ratio) {
|
|
+ case 32:
|
|
+ config->data_width = 16;
|
|
+ dev->ccr = 0x00;
|
|
+ dev->xfer_resolution = 0x02;
|
|
+ break;
|
|
+
|
|
+ case 48:
|
|
+ config->data_width = 24;
|
|
+ dev->ccr = 0x08;
|
|
+ dev->xfer_resolution = 0x04;
|
|
+ break;
|
|
+
|
|
+ case 64:
|
|
+ config->data_width = 32;
|
|
+ dev->ccr = 0x10;
|
|
+ dev->xfer_resolution = 0x05;
|
|
+ break;
|
|
+ default:
|
|
+ return -EINVAL;
|
|
+ }
|
|
+
|
|
+ i2s_write_reg(dev->i2s_base, CCR, dev->ccr);
|
|
+
|
|
+ return 0;
|
|
+}
|
|
+
|
|
static const struct snd_soc_dai_ops dw_i2s_dai_ops = {
|
|
.hw_params = dw_i2s_hw_params,
|
|
.prepare = dw_i2s_prepare,
|
|
.trigger = dw_i2s_trigger,
|
|
.set_fmt = dw_i2s_set_fmt,
|
|
+ .set_bclk_ratio = dw_i2s_set_bclk_ratio,
|
|
};
|
|
|
|
#ifdef CONFIG_PM
|