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ASoC: rockchip: sai: Add support for Clk-Auto Switch

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This patch add support for Clk-Auto Switch.

Signed-off-by: Sugar Zhang <sugar.zhang@rock-chips.com>
Change-Id: I2d3b10fcf4cc55ba005d1c9da1049190882f7494
This commit is contained in:
Sugar Zhang
2023-04-24 19:08:52 +08:00
committed by Tao Huang
parent 0ee19616d5
commit c961c5bb56
1 changed files with 34 additions and 1 deletions
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35
sound/soc/rockchip/rockchip_sai.c
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@@ -50,6 +50,7 @@ struct rk_sai_dev {
bool has_playback;
bool is_master_mode;
bool is_tdm;
bool is_clk_auto;
};
static int sai_runtime_suspend(struct device *dev)
@@ -460,6 +461,8 @@ static int rockchip_sai_hw_params(struct snd_pcm_substream *substream,
if (sai->is_master_mode) {
bclk_rate = sai->fw_ratio * slot_width * ch_per_lane * params_rate(params);
if (sai->is_clk_auto)
clk_set_rate(sai->mclk, bclk_rate);
mclk_rate = clk_get_rate(sai->mclk);
if (mclk_rate < bclk_rate) {
dev_err(sai->dev, "Mismatch mclk: %u, expected %u at least\n",
@@ -507,7 +510,7 @@ static int rockchip_sai_set_sysclk(struct snd_soc_dai *dai, int clk_id,
struct rk_sai_dev *sai = snd_soc_dai_get_drvdata(dai);
int ret;
if (!freq)
if (!freq || sai->is_clk_auto)
return 0;
ret = clk_set_rate(sai->mclk, freq);
@@ -1026,6 +1029,32 @@ static int rockchip_sai_mss_put(struct snd_kcontrol *kcontrol,
return 1;
}
static int rockchip_sai_clk_auto_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
struct rk_sai_dev *sai = snd_soc_component_get_drvdata(component);
ucontrol->value.integer.value[0] = sai->is_clk_auto;
return 0;
}
static int rockchip_sai_clk_auto_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
struct rk_sai_dev *sai = snd_soc_component_get_drvdata(component);
bool clk_auto = ucontrol->value.integer.value[0];
if (clk_auto == sai->is_clk_auto)
return 0;
sai->is_clk_auto = clk_auto;
return 1;
}
static DECLARE_TLV_DB_SCALE(fs_shift_tlv, 0, 8192, 0);
static const struct snd_kcontrol_new rockchip_sai_controls[] = {
@@ -1085,6 +1114,10 @@ static const struct snd_kcontrol_new rockchip_sai_controls[] = {
0, 8192, 0, fs_shift_tlv),
SOC_SINGLE_TLV("Receive Frame Shift Select", SAI_RX_SHIFT,
0, 8192, 0, fs_shift_tlv),
SOC_SINGLE_BOOL_EXT("Clk Auto Switch", 0,
rockchip_sai_clk_auto_get,
rockchip_sai_clk_auto_put),
};
static const struct snd_soc_component_driver rockchip_sai_component = {