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-rw-r--r--sound/soc/img/img-i2s-in.c130
-rw-r--r--sound/soc/img/img-i2s-out.c120
-rw-r--r--sound/soc/img/img-parallel-out.c6
-rw-r--r--sound/soc/img/img-spdif-in.c110
-rw-r--r--sound/soc/img/img-spdif-out.c87
5 files changed, 381 insertions, 72 deletions
diff --git a/sound/soc/img/img-i2s-in.c b/sound/soc/img/img-i2s-in.c
index 567f9767fb73..d7fbb0a0a28b 100644
--- a/sound/soc/img/img-i2s-in.c
+++ b/sound/soc/img/img-i2s-in.c
@@ -16,6 +16,7 @@
#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
#include <linux/reset.h>
#include <sound/core.h>
@@ -60,8 +61,33 @@ struct img_i2s_in {
void __iomem *channel_base;
unsigned int active_channels;
struct snd_soc_dai_driver dai_driver;
+ u32 suspend_ctl;
+ u32 *suspend_ch_ctl;
};
+static int img_i2s_in_runtime_suspend(struct device *dev)
+{
+ struct img_i2s_in *i2s = dev_get_drvdata(dev);
+
+ clk_disable_unprepare(i2s->clk_sys);
+
+ return 0;
+}
+
+static int img_i2s_in_runtime_resume(struct device *dev)
+{
+ struct img_i2s_in *i2s = dev_get_drvdata(dev);
+ int ret;
+
+ ret = clk_prepare_enable(i2s->clk_sys);
+ if (ret) {
+ dev_err(dev, "Unable to enable sys clock\n");
+ return ret;
+ }
+
+ return 0;
+}
+
static inline void img_i2s_in_writel(struct img_i2s_in *i2s, u32 val, u32 reg)
{
writel(val, i2s->base + reg);
@@ -279,7 +305,7 @@ static int img_i2s_in_hw_params(struct snd_pcm_substream *substream,
static int img_i2s_in_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
{
struct img_i2s_in *i2s = snd_soc_dai_get_drvdata(dai);
- int i;
+ int i, ret;
u32 chan_control_mask, lrd_set = 0, blkp_set = 0, chan_control_set = 0;
u32 reg;
@@ -319,6 +345,10 @@ static int img_i2s_in_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
chan_control_mask = IMG_I2S_IN_CH_CTL_CLK_TRANS_MASK;
+ ret = pm_runtime_get_sync(i2s->dev);
+ if (ret < 0)
+ return ret;
+
for (i = 0; i < i2s->active_channels; i++)
img_i2s_in_ch_disable(i2s, i);
@@ -338,6 +368,8 @@ static int img_i2s_in_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
for (i = 0; i < i2s->active_channels; i++)
img_i2s_in_ch_enable(i2s, i);
+ pm_runtime_put(i2s->dev);
+
return 0;
}
@@ -427,9 +459,15 @@ static int img_i2s_in_probe(struct platform_device *pdev)
return PTR_ERR(i2s->clk_sys);
}
- ret = clk_prepare_enable(i2s->clk_sys);
- if (ret)
- return ret;
+ pm_runtime_enable(&pdev->dev);
+ if (!pm_runtime_enabled(&pdev->dev)) {
+ ret = img_i2s_in_runtime_resume(&pdev->dev);
+ if (ret)
+ goto err_pm_disable;
+ }
+ ret = pm_runtime_get_sync(&pdev->dev);
+ if (ret < 0)
+ goto err_suspend;
i2s->active_channels = 1;
i2s->dma_data.addr = res->start + IMG_I2S_IN_RX_FIFO;
@@ -447,7 +485,7 @@ static int img_i2s_in_probe(struct platform_device *pdev)
if (IS_ERR(rst)) {
if (PTR_ERR(rst) == -EPROBE_DEFER) {
ret = -EPROBE_DEFER;
- goto err_clk_disable;
+ goto err_suspend;
}
dev_dbg(dev, "No top level reset found\n");
@@ -469,42 +507,110 @@ static int img_i2s_in_probe(struct platform_device *pdev)
IMG_I2S_IN_CH_CTL_JUST_MASK |
IMG_I2S_IN_CH_CTL_FW_MASK, IMG_I2S_IN_CH_CTL);
+ pm_runtime_put(&pdev->dev);
+
+ i2s->suspend_ch_ctl = devm_kzalloc(dev,
+ sizeof(*i2s->suspend_ch_ctl) * i2s->max_i2s_chan, GFP_KERNEL);
+ if (!i2s->suspend_ch_ctl) {
+ ret = -ENOMEM;
+ goto err_suspend;
+ }
+
ret = devm_snd_soc_register_component(dev, &img_i2s_in_component,
&i2s->dai_driver, 1);
if (ret)
- goto err_clk_disable;
+ goto err_suspend;
ret = devm_snd_dmaengine_pcm_register(dev, &img_i2s_in_dma_config, 0);
if (ret)
- goto err_clk_disable;
+ goto err_suspend;
return 0;
-err_clk_disable:
- clk_disable_unprepare(i2s->clk_sys);
+err_suspend:
+ if (!pm_runtime_enabled(&pdev->dev))
+ img_i2s_in_runtime_suspend(&pdev->dev);
+err_pm_disable:
+ pm_runtime_disable(&pdev->dev);
return ret;
}
static int img_i2s_in_dev_remove(struct platform_device *pdev)
{
- struct img_i2s_in *i2s = platform_get_drvdata(pdev);
+ pm_runtime_disable(&pdev->dev);
+ if (!pm_runtime_status_suspended(&pdev->dev))
+ img_i2s_in_runtime_suspend(&pdev->dev);
- clk_disable_unprepare(i2s->clk_sys);
+ return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int img_i2s_in_suspend(struct device *dev)
+{
+ struct img_i2s_in *i2s = dev_get_drvdata(dev);
+ int i, ret;
+ u32 reg;
+
+ if (pm_runtime_status_suspended(dev)) {
+ ret = img_i2s_in_runtime_resume(dev);
+ if (ret)
+ return ret;
+ }
+
+ for (i = 0; i < i2s->max_i2s_chan; i++) {
+ reg = img_i2s_in_ch_readl(i2s, i, IMG_I2S_IN_CH_CTL);
+ i2s->suspend_ch_ctl[i] = reg;
+ }
+
+ i2s->suspend_ctl = img_i2s_in_readl(i2s, IMG_I2S_IN_CTL);
+
+ img_i2s_in_runtime_suspend(dev);
return 0;
}
+static int img_i2s_in_resume(struct device *dev)
+{
+ struct img_i2s_in *i2s = dev_get_drvdata(dev);
+ int i, ret;
+ u32 reg;
+
+ ret = img_i2s_in_runtime_resume(dev);
+ if (ret)
+ return ret;
+
+ for (i = 0; i < i2s->max_i2s_chan; i++) {
+ reg = i2s->suspend_ch_ctl[i];
+ img_i2s_in_ch_writel(i2s, i, reg, IMG_I2S_IN_CH_CTL);
+ }
+
+ img_i2s_in_writel(i2s, i2s->suspend_ctl, IMG_I2S_IN_CTL);
+
+ if (pm_runtime_status_suspended(dev))
+ img_i2s_in_runtime_suspend(dev);
+
+ return 0;
+}
+#endif
+
static const struct of_device_id img_i2s_in_of_match[] = {
{ .compatible = "img,i2s-in" },
{}
};
MODULE_DEVICE_TABLE(of, img_i2s_in_of_match);
+static const struct dev_pm_ops img_i2s_in_pm_ops = {
+ SET_RUNTIME_PM_OPS(img_i2s_in_runtime_suspend,
+ img_i2s_in_runtime_resume, NULL)
+ SET_SYSTEM_SLEEP_PM_OPS(img_i2s_in_suspend, img_i2s_in_resume)
+};
+
static struct platform_driver img_i2s_in_driver = {
.driver = {
.name = "img-i2s-in",
- .of_match_table = img_i2s_in_of_match
+ .of_match_table = img_i2s_in_of_match,
+ .pm = &img_i2s_in_pm_ops
},
.probe = img_i2s_in_probe,
.remove = img_i2s_in_dev_remove
diff --git a/sound/soc/img/img-i2s-out.c b/sound/soc/img/img-i2s-out.c
index 78b7f6cd675b..30a95bcef2db 100644
--- a/sound/soc/img/img-i2s-out.c
+++ b/sound/soc/img/img-i2s-out.c
@@ -63,29 +63,36 @@ struct img_i2s_out {
unsigned int active_channels;
struct reset_control *rst;
struct snd_soc_dai_driver dai_driver;
+ u32 suspend_ctl;
+ u32 *suspend_ch_ctl;
};
-static int img_i2s_out_suspend(struct device *dev)
+static int img_i2s_out_runtime_suspend(struct device *dev)
{
struct img_i2s_out *i2s = dev_get_drvdata(dev);
- if (!i2s->force_clk_active)
- clk_disable_unprepare(i2s->clk_ref);
+ clk_disable_unprepare(i2s->clk_ref);
+ clk_disable_unprepare(i2s->clk_sys);
return 0;
}
-static int img_i2s_out_resume(struct device *dev)
+static int img_i2s_out_runtime_resume(struct device *dev)
{
struct img_i2s_out *i2s = dev_get_drvdata(dev);
int ret;
- if (!i2s->force_clk_active) {
- ret = clk_prepare_enable(i2s->clk_ref);
- if (ret) {
- dev_err(dev, "clk_enable failed: %d\n", ret);
- return ret;
- }
+ ret = clk_prepare_enable(i2s->clk_sys);
+ if (ret) {
+ dev_err(dev, "clk_enable failed: %d\n", ret);
+ return ret;
+ }
+
+ ret = clk_prepare_enable(i2s->clk_ref);
+ if (ret) {
+ dev_err(dev, "clk_enable failed: %d\n", ret);
+ clk_disable_unprepare(i2s->clk_sys);
+ return ret;
}
return 0;
@@ -287,7 +294,7 @@ static int img_i2s_out_hw_params(struct snd_pcm_substream *substream,
static int img_i2s_out_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
{
struct img_i2s_out *i2s = snd_soc_dai_get_drvdata(dai);
- int i;
+ int i, ret;
bool force_clk_active;
u32 chan_control_mask, control_mask, chan_control_set = 0;
u32 reg, control_set = 0;
@@ -342,6 +349,10 @@ static int img_i2s_out_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
chan_control_mask = IMG_I2S_OUT_CHAN_CTL_CLKT_MASK;
+ ret = pm_runtime_get_sync(i2s->dev);
+ if (ret < 0)
+ return ret;
+
img_i2s_out_disable(i2s);
reg = img_i2s_out_readl(i2s, IMG_I2S_OUT_CTL);
@@ -361,6 +372,7 @@ static int img_i2s_out_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
img_i2s_out_ch_enable(i2s, i);
img_i2s_out_enable(i2s);
+ pm_runtime_put(i2s->dev);
i2s->force_clk_active = force_clk_active;
@@ -467,9 +479,20 @@ static int img_i2s_out_probe(struct platform_device *pdev)
return PTR_ERR(i2s->clk_ref);
}
- ret = clk_prepare_enable(i2s->clk_sys);
- if (ret)
- return ret;
+ i2s->suspend_ch_ctl = devm_kzalloc(dev,
+ sizeof(*i2s->suspend_ch_ctl) * i2s->max_i2s_chan, GFP_KERNEL);
+ if (!i2s->suspend_ch_ctl)
+ return -ENOMEM;
+
+ pm_runtime_enable(&pdev->dev);
+ if (!pm_runtime_enabled(&pdev->dev)) {
+ ret = img_i2s_out_runtime_resume(&pdev->dev);
+ if (ret)
+ goto err_pm_disable;
+ }
+ ret = pm_runtime_get_sync(&pdev->dev);
+ if (ret < 0)
+ goto err_suspend;
reg = IMG_I2S_OUT_CTL_FRM_SIZE_MASK;
img_i2s_out_writel(i2s, reg, IMG_I2S_OUT_CTL);
@@ -483,13 +506,7 @@ static int img_i2s_out_probe(struct platform_device *pdev)
img_i2s_out_ch_writel(i2s, i, reg, IMG_I2S_OUT_CH_CTL);
img_i2s_out_reset(i2s);
-
- pm_runtime_enable(&pdev->dev);
- if (!pm_runtime_enabled(&pdev->dev)) {
- ret = img_i2s_out_resume(&pdev->dev);
- if (ret)
- goto err_pm_disable;
- }
+ pm_runtime_put(&pdev->dev);
i2s->active_channels = 1;
i2s->dma_data.addr = res->start + IMG_I2S_OUT_TX_FIFO;
@@ -517,26 +534,70 @@ static int img_i2s_out_probe(struct platform_device *pdev)
err_suspend:
if (!pm_runtime_status_suspended(&pdev->dev))
- img_i2s_out_suspend(&pdev->dev);
+ img_i2s_out_runtime_suspend(&pdev->dev);
err_pm_disable:
pm_runtime_disable(&pdev->dev);
- clk_disable_unprepare(i2s->clk_sys);
return ret;
}
static int img_i2s_out_dev_remove(struct platform_device *pdev)
{
- struct img_i2s_out *i2s = platform_get_drvdata(pdev);
-
pm_runtime_disable(&pdev->dev);
if (!pm_runtime_status_suspended(&pdev->dev))
- img_i2s_out_suspend(&pdev->dev);
+ img_i2s_out_runtime_suspend(&pdev->dev);
- clk_disable_unprepare(i2s->clk_sys);
+ return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int img_i2s_out_suspend(struct device *dev)
+{
+ struct img_i2s_out *i2s = dev_get_drvdata(dev);
+ int i, ret;
+ u32 reg;
+
+ if (pm_runtime_status_suspended(dev)) {
+ ret = img_i2s_out_runtime_resume(dev);
+ if (ret)
+ return ret;
+ }
+
+ for (i = 0; i < i2s->max_i2s_chan; i++) {
+ reg = img_i2s_out_ch_readl(i2s, i, IMG_I2S_OUT_CH_CTL);
+ i2s->suspend_ch_ctl[i] = reg;
+ }
+
+ i2s->suspend_ctl = img_i2s_out_readl(i2s, IMG_I2S_OUT_CTL);
+
+ img_i2s_out_runtime_suspend(dev);
+
+ return 0;
+}
+
+static int img_i2s_out_resume(struct device *dev)
+{
+ struct img_i2s_out *i2s = dev_get_drvdata(dev);
+ int i, ret;
+ u32 reg;
+
+ ret = img_i2s_out_runtime_resume(dev);
+ if (ret)
+ return ret;
+
+ for (i = 0; i < i2s->max_i2s_chan; i++) {
+ reg = i2s->suspend_ch_ctl[i];
+ img_i2s_out_ch_writel(i2s, i, reg, IMG_I2S_OUT_CH_CTL);
+ }
+
+ img_i2s_out_writel(i2s, i2s->suspend_ctl, IMG_I2S_OUT_CTL);
+
+ if (pm_runtime_status_suspended(dev))
+ img_i2s_out_runtime_suspend(dev);
return 0;
}
+#endif
static const struct of_device_id img_i2s_out_of_match[] = {
{ .compatible = "img,i2s-out" },
@@ -545,8 +606,9 @@ static const struct of_device_id img_i2s_out_of_match[] = {
MODULE_DEVICE_TABLE(of, img_i2s_out_of_match);
static const struct dev_pm_ops img_i2s_out_pm_ops = {
- SET_RUNTIME_PM_OPS(img_i2s_out_suspend,
- img_i2s_out_resume, NULL)
+ SET_RUNTIME_PM_OPS(img_i2s_out_runtime_suspend,
+ img_i2s_out_runtime_resume, NULL)
+ SET_SYSTEM_SLEEP_PM_OPS(img_i2s_out_suspend, img_i2s_out_resume)
};
static struct platform_driver img_i2s_out_driver = {
diff --git a/sound/soc/img/img-parallel-out.c b/sound/soc/img/img-parallel-out.c
index 23b0f0f6ec9c..acc005217be0 100644
--- a/sound/soc/img/img-parallel-out.c
+++ b/sound/soc/img/img-parallel-out.c
@@ -153,6 +153,7 @@ static int img_prl_out_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
{
struct img_prl_out *prl = snd_soc_dai_get_drvdata(dai);
u32 reg, control_set = 0;
+ int ret;
switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
case SND_SOC_DAIFMT_NB_NF:
@@ -164,9 +165,14 @@ static int img_prl_out_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
return -EINVAL;
}
+ ret = pm_runtime_get_sync(prl->dev);
+ if (ret < 0)
+ return ret;
+
reg = img_prl_out_readl(prl, IMG_PRL_OUT_CTL);
reg = (reg & ~IMG_PRL_OUT_CTL_EDGE_MASK) | control_set;
img_prl_out_writel(prl, reg, IMG_PRL_OUT_CTL);
+ pm_runtime_put(prl->dev);
return 0;
}
diff --git a/sound/soc/img/img-spdif-in.c b/sound/soc/img/img-spdif-in.c
index 8adfd65d4390..cedd40c8d1f3 100644
--- a/sound/soc/img/img-spdif-in.c
+++ b/sound/soc/img/img-spdif-in.c
@@ -16,6 +16,7 @@
#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
#include <linux/reset.h>
#include <sound/core.h>
@@ -82,11 +83,36 @@ struct img_spdif_in {
unsigned int single_freq;
unsigned int multi_freqs[IMG_SPDIF_IN_NUM_ACLKGEN];
bool active;
+ u32 suspend_clkgen;
+ u32 suspend_ctl;
/* Write-only registers */
unsigned int aclkgen_regs[IMG_SPDIF_IN_NUM_ACLKGEN];
};
+static int img_spdif_in_runtime_suspend(struct device *dev)
+{
+ struct img_spdif_in *spdif = dev_get_drvdata(dev);
+
+ clk_disable_unprepare(spdif->clk_sys);
+
+ return 0;
+}
+
+static int img_spdif_in_runtime_resume(struct device *dev)
+{
+ struct img_spdif_in *spdif = dev_get_drvdata(dev);
+ int ret;
+
+ ret = clk_prepare_enable(spdif->clk_sys);
+ if (ret) {
+ dev_err(dev, "Unable to enable sys clock\n");
+ return ret;
+ }
+
+ return 0;
+}
+
static inline void img_spdif_in_writel(struct img_spdif_in *spdif,
u32 val, u32 reg)
{
@@ -723,15 +749,21 @@ static int img_spdif_in_probe(struct platform_device *pdev)
return PTR_ERR(spdif->clk_sys);
}
- ret = clk_prepare_enable(spdif->clk_sys);
- if (ret)
- return ret;
+ pm_runtime_enable(&pdev->dev);
+ if (!pm_runtime_enabled(&pdev->dev)) {
+ ret = img_spdif_in_runtime_resume(&pdev->dev);
+ if (ret)
+ goto err_pm_disable;
+ }
+ ret = pm_runtime_get_sync(&pdev->dev);
+ if (ret < 0)
+ goto err_suspend;
rst = devm_reset_control_get_exclusive(&pdev->dev, "rst");
if (IS_ERR(rst)) {
if (PTR_ERR(rst) == -EPROBE_DEFER) {
ret = -EPROBE_DEFER;
- goto err_clk_disable;
+ goto err_pm_put;
}
dev_dbg(dev, "No top level reset found\n");
img_spdif_in_writel(spdif, IMG_SPDIF_IN_SOFT_RESET_MASK,
@@ -759,42 +791,98 @@ static int img_spdif_in_probe(struct platform_device *pdev)
IMG_SPDIF_IN_CTL_TRK_MASK;
img_spdif_in_writel(spdif, reg, IMG_SPDIF_IN_CTL);
+ pm_runtime_put(&pdev->dev);
+
ret = devm_snd_soc_register_component(&pdev->dev,
&img_spdif_in_component, &img_spdif_in_dai, 1);
if (ret)
- goto err_clk_disable;
+ goto err_suspend;
ret = devm_snd_dmaengine_pcm_register(&pdev->dev, NULL, 0);
if (ret)
- goto err_clk_disable;
+ goto err_suspend;
return 0;
-err_clk_disable:
- clk_disable_unprepare(spdif->clk_sys);
+err_pm_put:
+ pm_runtime_put(&pdev->dev);
+err_suspend:
+ if (!pm_runtime_enabled(&pdev->dev))
+ img_spdif_in_runtime_suspend(&pdev->dev);
+err_pm_disable:
+ pm_runtime_disable(&pdev->dev);
return ret;
}
static int img_spdif_in_dev_remove(struct platform_device *pdev)
{
- struct img_spdif_in *spdif = platform_get_drvdata(pdev);
+ pm_runtime_disable(&pdev->dev);
+ if (!pm_runtime_status_suspended(&pdev->dev))
+ img_spdif_in_runtime_suspend(&pdev->dev);
- clk_disable_unprepare(spdif->clk_sys);
+ return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int img_spdif_in_suspend(struct device *dev)
+{
+ struct img_spdif_in *spdif = dev_get_drvdata(dev);
+ int ret;
+
+ if (pm_runtime_status_suspended(dev)) {
+ ret = img_spdif_in_runtime_resume(dev);
+ if (ret)
+ return ret;
+ }
+
+ spdif->suspend_clkgen = img_spdif_in_readl(spdif, IMG_SPDIF_IN_CLKGEN);
+ spdif->suspend_ctl = img_spdif_in_readl(spdif, IMG_SPDIF_IN_CTL);
+
+ img_spdif_in_runtime_suspend(dev);
return 0;
}
+static int img_spdif_in_resume(struct device *dev)
+{
+ struct img_spdif_in *spdif = dev_get_drvdata(dev);
+ int i, ret;
+
+ ret = img_spdif_in_runtime_resume(dev);
+ if (ret)
+ return ret;
+
+ for (i = 0; i < IMG_SPDIF_IN_NUM_ACLKGEN; i++)
+ img_spdif_in_aclkgen_writel(spdif, i);
+
+ img_spdif_in_writel(spdif, spdif->suspend_clkgen, IMG_SPDIF_IN_CLKGEN);
+ img_spdif_in_writel(spdif, spdif->suspend_ctl, IMG_SPDIF_IN_CTL);
+
+ if (pm_runtime_status_suspended(dev))
+ img_spdif_in_runtime_suspend(dev);
+
+ return 0;
+}
+#endif
+
static const struct of_device_id img_spdif_in_of_match[] = {
{ .compatible = "img,spdif-in" },
{}
};
MODULE_DEVICE_TABLE(of, img_spdif_in_of_match);
+static const struct dev_pm_ops img_spdif_in_pm_ops = {
+ SET_RUNTIME_PM_OPS(img_spdif_in_runtime_suspend,
+ img_spdif_in_runtime_resume, NULL)
+ SET_SYSTEM_SLEEP_PM_OPS(img_spdif_in_suspend, img_spdif_in_resume)
+};
+
static struct platform_driver img_spdif_in_driver = {
.driver = {
.name = "img-spdif-in",
- .of_match_table = img_spdif_in_of_match
+ .of_match_table = img_spdif_in_of_match,
+ .pm = &img_spdif_in_pm_ops
},
.probe = img_spdif_in_probe,
.remove = img_spdif_in_dev_remove
diff --git a/sound/soc/img/img-spdif-out.c b/sound/soc/img/img-spdif-out.c
index 383655da2e60..934ed3df2ebf 100644
--- a/sound/soc/img/img-spdif-out.c
+++ b/sound/soc/img/img-spdif-out.c
@@ -47,25 +47,36 @@ struct img_spdif_out {
struct snd_dmaengine_dai_dma_data dma_data;
struct device *dev;
struct reset_control *rst;
+ u32 suspend_ctl;
+ u32 suspend_csl;
+ u32 suspend_csh;
};
-static int img_spdif_out_suspend(struct device *dev)
+static int img_spdif_out_runtime_suspend(struct device *dev)
{
struct img_spdif_out *spdif = dev_get_drvdata(dev);
clk_disable_unprepare(spdif->clk_ref);
+ clk_disable_unprepare(spdif->clk_sys);
return 0;
}
-static int img_spdif_out_resume(struct device *dev)
+static int img_spdif_out_runtime_resume(struct device *dev)
{
struct img_spdif_out *spdif = dev_get_drvdata(dev);
int ret;
+ ret = clk_prepare_enable(spdif->clk_sys);
+ if (ret) {
+ dev_err(dev, "clk_enable failed: %d\n", ret);
+ return ret;
+ }
+
ret = clk_prepare_enable(spdif->clk_ref);
if (ret) {
dev_err(dev, "clk_enable failed: %d\n", ret);
+ clk_disable_unprepare(spdif->clk_sys);
return ret;
}
@@ -355,21 +366,21 @@ static int img_spdif_out_probe(struct platform_device *pdev)
return PTR_ERR(spdif->clk_ref);
}
- ret = clk_prepare_enable(spdif->clk_sys);
- if (ret)
- return ret;
-
- img_spdif_out_writel(spdif, IMG_SPDIF_OUT_CTL_FS_MASK,
- IMG_SPDIF_OUT_CTL);
-
- img_spdif_out_reset(spdif);
-
pm_runtime_enable(&pdev->dev);
if (!pm_runtime_enabled(&pdev->dev)) {
- ret = img_spdif_out_resume(&pdev->dev);
+ ret = img_spdif_out_runtime_resume(&pdev->dev);
if (ret)
goto err_pm_disable;
}
+ ret = pm_runtime_get_sync(&pdev->dev);
+ if (ret < 0)
+ goto err_suspend;
+
+ img_spdif_out_writel(spdif, IMG_SPDIF_OUT_CTL_FS_MASK,
+ IMG_SPDIF_OUT_CTL);
+
+ img_spdif_out_reset(spdif);
+ pm_runtime_put(&pdev->dev);
spin_lock_init(&spdif->lock);
@@ -393,27 +404,62 @@ static int img_spdif_out_probe(struct platform_device *pdev)
err_suspend:
if (!pm_runtime_status_suspended(&pdev->dev))
- img_spdif_out_suspend(&pdev->dev);
+ img_spdif_out_runtime_suspend(&pdev->dev);
err_pm_disable:
pm_runtime_disable(&pdev->dev);
- clk_disable_unprepare(spdif->clk_sys);
return ret;
}
static int img_spdif_out_dev_remove(struct platform_device *pdev)
{
- struct img_spdif_out *spdif = platform_get_drvdata(pdev);
-
pm_runtime_disable(&pdev->dev);
if (!pm_runtime_status_suspended(&pdev->dev))
- img_spdif_out_suspend(&pdev->dev);
+ img_spdif_out_runtime_suspend(&pdev->dev);
- clk_disable_unprepare(spdif->clk_sys);
+ return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int img_spdif_out_suspend(struct device *dev)
+{
+ struct img_spdif_out *spdif = dev_get_drvdata(dev);
+ int ret;
+
+ if (pm_runtime_status_suspended(dev)) {
+ ret = img_spdif_out_runtime_resume(dev);
+ if (ret)
+ return ret;
+ }
+
+ spdif->suspend_ctl = img_spdif_out_readl(spdif, IMG_SPDIF_OUT_CTL);
+ spdif->suspend_csl = img_spdif_out_readl(spdif, IMG_SPDIF_OUT_CSL);
+ spdif->suspend_csh = img_spdif_out_readl(spdif, IMG_SPDIF_OUT_CSH_UV);
+
+ img_spdif_out_runtime_suspend(dev);
return 0;
}
+static int img_spdif_out_resume(struct device *dev)
+{
+ struct img_spdif_out *spdif = dev_get_drvdata(dev);
+ int ret;
+
+ ret = img_spdif_out_runtime_resume(dev);
+ if (ret)
+ return ret;
+
+ img_spdif_out_writel(spdif, spdif->suspend_ctl, IMG_SPDIF_OUT_CTL);
+ img_spdif_out_writel(spdif, spdif->suspend_csl, IMG_SPDIF_OUT_CSL);
+ img_spdif_out_writel(spdif, spdif->suspend_csh, IMG_SPDIF_OUT_CSH_UV);
+
+ if (pm_runtime_status_suspended(dev))
+ img_spdif_out_runtime_suspend(dev);
+
+ return 0;
+}
+#endif
static const struct of_device_id img_spdif_out_of_match[] = {
{ .compatible = "img,spdif-out" },
{}
@@ -421,8 +467,9 @@ static const struct of_device_id img_spdif_out_of_match[] = {
MODULE_DEVICE_TABLE(of, img_spdif_out_of_match);
static const struct dev_pm_ops img_spdif_out_pm_ops = {
- SET_RUNTIME_PM_OPS(img_spdif_out_suspend,
- img_spdif_out_resume, NULL)
+ SET_RUNTIME_PM_OPS(img_spdif_out_runtime_suspend,
+ img_spdif_out_runtime_resume, NULL)
+ SET_SYSTEM_SLEEP_PM_OPS(img_spdif_out_suspend, img_spdif_out_resume)
};
static struct platform_driver img_spdif_out_driver = {
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-29 19:21:32 +0000