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ASoC: rockchip: Add spk-ctl for audiopwm

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Change-Id: I052f04b8d9ccd0b476051a04e7183e23d4126131
Signed-off-by: Sugar Zhang <sugar.zhang@rock-chips.com>
This commit is contained in:
Sugar Zhang 2020-03-27 13:52:14 +08:00
parent a442177046
commit 7fb3fa1531
1 changed files with 21 additions and 0 deletions
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21
sound/soc/rockchip/rockchip_audio_pwm.c
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@ -10,6 +10,7 @@
#include <linux/module.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/of_gpio.h>
#include <linux/pm_runtime.h>
#include <linux/regmap.h>
#include <sound/dmaengine_pcm.h>
@ -25,6 +26,7 @@ struct rk_audio_pwm_dev {
struct clk *hclk;
struct regmap *regmap;
struct snd_dmaengine_dai_dma_data playback_dma_data;
struct gpio_desc *spk_ctl_gpio;
int interpolat_points;
int sample_width_bits;
};
@ -34,12 +36,20 @@ static inline struct rk_audio_pwm_dev *to_info(struct snd_soc_dai *dai)
return snd_soc_dai_get_drvdata(dai);
}
static void rockchip_audio_spk_ctl(struct rk_audio_pwm_dev *apwm, int on)
{
if (apwm->spk_ctl_gpio)
gpiod_direction_output(apwm->spk_ctl_gpio, on);
}
static void rockchip_audio_pwm_xfer(struct rk_audio_pwm_dev *apwm, int on)
{
if (on) {
regmap_write(apwm->regmap, AUDPWM_FIFO_CFG, AUDPWM_DMA_EN);
regmap_write(apwm->regmap, AUDPWM_XFER, AUDPWM_XFER_START);
rockchip_audio_spk_ctl(apwm, on);
} else {
rockchip_audio_spk_ctl(apwm, on);
regmap_write(apwm->regmap, AUDPWM_FIFO_CFG, AUDPWM_DMA_DIS);
regmap_write(apwm->regmap, AUDPWM_XFER, AUDPWM_XFER_STOP);
}
@ -295,6 +305,17 @@ static int rockchip_audio_pwm_probe(struct platform_device *pdev)
of_property_read_u32(np, "rockchip,interpolat-points",
&apwm->interpolat_points);
apwm->spk_ctl_gpio = devm_gpiod_get_optional(&pdev->dev, "spk-ctl",
GPIOD_OUT_LOW);
if (!apwm->spk_ctl_gpio) {
dev_info(&pdev->dev, "no need spk-ctl gpio\n");
} else if (IS_ERR(apwm->spk_ctl_gpio)) {
ret = PTR_ERR(apwm->spk_ctl_gpio);
dev_err(&pdev->dev, "fail to request gpio spk-ctl\n");
goto err_suspend;
}
ret = devm_snd_soc_register_component(&pdev->dev,
&rockchip_audio_pwm_component,
&rockchip_audio_pwm_dai, 1);