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rpi-wm8804-soundcard: drop PWRDN register writes

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Since kernel 4.0 the PWRDN register bits are under DAPM
control from the wm8804 driver.

Drop code that modifies that register to avoid interfering
with DAPM.

Signed-off-by: Matthias Reichl <hias@horus.com>
This commit is contained in:
Matthias Reichl
2018-11-18 15:24:16 +01:00
committed by popcornmix
parent f58e43e8fa
commit bc445e2641
1 changed files with 0 additions and 55 deletions
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55
sound/soc/bcm/rpi-wm8804-soundcard.c
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@@ -54,8 +54,6 @@ struct snd_rpi_wm8804_drvdata {
struct snd_soc_dai_link *dai;
/* Required - snd_soc_card name */
const char *card_name;
/* Optional- Overrides the module paramter */
unsigned short auto_shutdown_output;
/* Optional DT node names if card info is defined in DT */
const char *card_name_dt;
const char *dai_name_dt;
@@ -64,51 +62,12 @@ struct snd_rpi_wm8804_drvdata {
int (*probe)(struct platform_device *pdev);
};
static short int auto_shutdown_output;
module_param(auto_shutdown_output, short, 0660);
MODULE_PARM_DESC(auto_shutdown_output, "Shutdown SP/DIF output if playback is stopped");
static struct gpio_desc *snd_clk44gpio;
static struct gpio_desc *snd_clk48gpio;
#define CLK_44EN_RATE 22579200UL
#define CLK_48EN_RATE 24576000UL
static int snd_rpi_wm8804_init(struct snd_soc_pcm_runtime *rtd)
{
struct snd_soc_component *component = rtd->codec_dai->component;
int rc;
pr_debug("%s\n", __func__);
rc = snd_soc_component_update_bits(component, WM8804_PWRDN, 0x4, 0x0);
return rc < 0 ? rc : 0;
}
static int snd_rpi_wm8804_digi_startup(struct snd_pcm_substream *substream)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_component *component = rtd->codec_dai->component;
int rc;
pr_debug("%s\n", __func__);
rc = snd_soc_component_update_bits(component, WM8804_PWRDN, 0x3c, 0x00);
return rc < 0 ? rc : 0;
}
static void snd_rpi_wm8804_digi_shutdown(struct snd_pcm_substream *substream)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_component *component = rtd->codec_dai->component;
pr_debug("%s %d\n", __func__, auto_shutdown_output);
if (auto_shutdown_output)
snd_soc_component_update_bits(component, WM8804_PWRDN,
0x3c, 0x3c);
}
static unsigned int snd_rpi_wm8804_enable_clock(unsigned int samplerate)
{
switch (samplerate) {
@@ -204,12 +163,6 @@ static int snd_rpi_wm8804_hw_params(struct snd_pcm_substream *substream,
return ret;
}
/* Enable TX output */
snd_soc_component_update_bits(component, WM8804_PWRDN, 0x4, 0x0);
/* Power on */
snd_soc_component_update_bits(component, WM8804_PWRDN, 0x9, 0);
/* set sampling frequency status bits */
snd_soc_component_update_bits(component, WM8804_SPDTX4, 0x0f,
sampling_freq);
@@ -219,8 +172,6 @@ static int snd_rpi_wm8804_hw_params(struct snd_pcm_substream *substream,
static struct snd_soc_ops snd_rpi_wm8804_ops = {
.hw_params = snd_rpi_wm8804_hw_params,
.startup = snd_rpi_wm8804_digi_startup,
.shutdown = snd_rpi_wm8804_digi_shutdown,
};
static struct snd_soc_dai_link snd_justboom_digi_dai[] = {
@@ -233,7 +184,6 @@ static struct snd_soc_dai_link snd_justboom_digi_dai[] = {
static struct snd_rpi_wm8804_drvdata drvdata_justboom_digi = {
.card_name = "snd_rpi_justboom_digi",
.dai = snd_justboom_digi_dai,
.auto_shutdown_output = 1,
};
static struct snd_soc_dai_link snd_iqaudio_digi_dai[] = {
@@ -335,8 +285,6 @@ static int snd_rpi_wm8804_probe(struct platform_device *pdev)
snd_soc_card_set_drvdata(&snd_rpi_wm8804, drvdata);
if (!dai->init)
dai->init = snd_rpi_wm8804_init;
if (!dai->ops)
dai->ops = &snd_rpi_wm8804_ops;
if (!dai->codec_dai_name)
@@ -348,9 +296,6 @@ static int snd_rpi_wm8804_probe(struct platform_device *pdev)
SND_SOC_DAIFMT_NB_NF |
SND_SOC_DAIFMT_CBM_CFM;
if (drvdata->auto_shutdown_output)
auto_shutdown_output = 1;
snd_rpi_wm8804.dai_link = dai;
i2s_node = of_parse_phandle(pdev->dev.of_node,
"i2s-controller", 0);