ASoC: Remove legacy SSP API usage from pxa-ssp.c

Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>

2 files changed, 61 insertions, 30 deletions

diff --git a/sound/soc/pxa/Kconfig b/sound/soc/pxa/Kconfig
index 89de27578416..376e14a9c273 100644
--- a/sound/soc/pxa/Kconfig
+++ b/sound/soc/pxa/Kconfig
@@ -23,7 +23,6 @@ config SND_PXA2XX_SOC_I2S
 
 config SND_PXA_SOC_SSP
         tristate
-        select PXA_SSP_LEGACY
 
 config SND_PXA2XX_SOC_CORGI
         tristate "SoC Audio support for Sharp Zaurus SL-C7x0"
diff --git a/sound/soc/pxa/pxa-ssp.c b/sound/soc/pxa/pxa-ssp.c
index 3bd7712f029b..cf00df9c40f4 100644
--- a/sound/soc/pxa/pxa-ssp.c
+++ b/sound/soc/pxa/pxa-ssp.c
@@ -42,11 +42,14 @@
  * SSP audio private data
  */
 struct ssp_priv {
-        struct ssp_dev dev;
+        struct ssp_device *ssp;
         unsigned int sysclk;
         int dai_fmt;
 #ifdef CONFIG_PM
-        struct ssp_state state;
+        uint32_t        cr0;
+        uint32_t        cr1;
+        uint32_t        to;
+        uint32_t        psp;
 #endif
 };
 
@@ -61,6 +64,22 @@ static void dump_registers(struct ssp_device *ssp)
                  ssp_read_reg(ssp, SSACD));
 }
 
+static void ssp_enable(struct ssp_device *ssp)
+{
+        uint32_t sscr0;
+
+        sscr0 = __raw_readl(ssp->mmio_base + SSCR0) | SSCR0_SSE;
+        __raw_writel(sscr0, ssp->mmio_base + SSCR0);
+}
+
+static void ssp_disable(struct ssp_device *ssp)
+{
+        uint32_t sscr0;
+
+        sscr0 = __raw_readl(ssp->mmio_base + SSCR0) & ~SSCR0_SSE;
+        __raw_writel(sscr0, ssp->mmio_base + SSCR0);
+}
+
 struct pxa2xx_pcm_dma_data {
         struct pxa2xx_pcm_dma_params params;
         char name[20];
@@ -94,13 +113,12 @@ static int pxa_ssp_startup(struct snd_pcm_substream *substream,
         struct snd_soc_pcm_runtime *rtd = substream->private_data;
         struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
         struct ssp_priv *priv = cpu_dai->private_data;
+        struct ssp_device *ssp = priv->ssp;
         int ret = 0;
 
         if (!cpu_dai->active) {
-                priv->dev.port = cpu_dai->id + 1;
-                priv->dev.irq = NO_IRQ;
-                clk_enable(priv->dev.ssp->clk);
-                ssp_disable(&priv->dev);
+                clk_enable(ssp->clk);
+                ssp_disable(ssp);
         }
 
         if (cpu_dai->dma_data) {
@@ -116,10 +134,11 @@ static void pxa_ssp_shutdown(struct snd_pcm_substream *substream,
         struct snd_soc_pcm_runtime *rtd = substream->private_data;
         struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
         struct ssp_priv *priv = cpu_dai->private_data;
+        struct ssp_device *ssp = priv->ssp;
 
         if (!cpu_dai->active) {
-                ssp_disable(&priv->dev);
-                clk_disable(priv->dev.ssp->clk);
+                ssp_disable(ssp);
+                clk_disable(ssp->clk);
         }
 
         if (cpu_dai->dma_data) {
@@ -133,26 +152,39 @@ static void pxa_ssp_shutdown(struct snd_pcm_substream *substream,
 static int pxa_ssp_suspend(struct snd_soc_dai *cpu_dai)
 {
         struct ssp_priv *priv = cpu_dai->private_data;
+        struct ssp_device *ssp = priv->ssp;
 
         if (!cpu_dai->active)
                 return 0;
 
-        ssp_save_state(&priv->dev, &priv->state);
-        clk_disable(priv->dev.ssp->clk);
+        priv->cr0 = __raw_readl(ssp->mmio_base + SSCR0);
+        priv->cr1 = __raw_readl(ssp->mmio_base + SSCR1);
+        priv->to  = __raw_readl(ssp->mmio_base + SSTO);
+        priv->psp = __raw_readl(ssp->mmio_base + SSPSP);
+
+        ssp_disable(ssp);
+        clk_disable(ssp->clk);
         return 0;
 }
 
 static int pxa_ssp_resume(struct snd_soc_dai *cpu_dai)
 {
         struct ssp_priv *priv = cpu_dai->private_data;
+        struct ssp_device *ssp = priv->ssp;
+        uint32_t sssr = SSSR_ROR | SSSR_TUR | SSSR_BCE;
 
         if (!cpu_dai->active)
                 return 0;
 
-        clk_enable(priv->dev.ssp->clk);
-        ssp_restore_state(&priv->dev, &priv->state);
-        ssp_enable(&priv->dev);
+        clk_enable(ssp->clk);
+
+        __raw_writel(sssr, ssp->mmio_base + SSSR);
 
+        __raw_writel(priv->cr0 & ~SSCR0_SSE, ssp->mmio_base + SSCR0);
+        __raw_writel(priv->cr1, ssp->mmio_base + SSCR1);
+        __raw_writel(priv->to,  ssp->mmio_base + SSTO);
+        __raw_writel(priv->psp, ssp->mmio_base + SSPSP);
+        __raw_writel(priv->cr0 | SSCR0_SSE, ssp->mmio_base + SSCR0);
         return 0;
 }
 
@@ -201,7 +233,7 @@ static int pxa_ssp_set_dai_sysclk(struct snd_soc_dai *cpu_dai,
         int clk_id, unsigned int freq, int dir)
 {
         struct ssp_priv *priv = cpu_dai->private_data;
-        struct ssp_device *ssp = priv->dev.ssp;
+        struct ssp_device *ssp = priv->ssp;
         int val;
 
         u32 sscr0 = ssp_read_reg(ssp, SSCR0) &
@@ -242,11 +274,11 @@ static int pxa_ssp_set_dai_sysclk(struct snd_soc_dai *cpu_dai,
         /* The SSP clock must be disabled when changing SSP clock mode
          * on PXA2xx.  On PXA3xx it must be enabled when doing so. */
         if (!cpu_is_pxa3xx())
-                clk_disable(priv->dev.ssp->clk);
+                clk_disable(ssp->clk);
         val = ssp_read_reg(ssp, SSCR0) | sscr0;
         ssp_write_reg(ssp, SSCR0, val);
         if (!cpu_is_pxa3xx())
-                clk_enable(priv->dev.ssp->clk);
+                clk_enable(ssp->clk);
 
         return 0;
 }
@@ -258,7 +290,7 @@ static int pxa_ssp_set_dai_clkdiv(struct snd_soc_dai *cpu_dai,
         int div_id, int div)
 {
         struct ssp_priv *priv = cpu_dai->private_data;
-        struct ssp_device *ssp = priv->dev.ssp;
+        struct ssp_device *ssp = priv->ssp;
         int val;
 
         switch (div_id) {
@@ -309,7 +341,7 @@ static int pxa_ssp_set_dai_pll(struct snd_soc_dai *cpu_dai, int pll_id,
         int source, unsigned int freq_in, unsigned int freq_out)
 {
         struct ssp_priv *priv = cpu_dai->private_data;
-        struct ssp_device *ssp = priv->dev.ssp;
+        struct ssp_device *ssp = priv->ssp;
         u32 ssacd = ssp_read_reg(ssp, SSACD) & ~0x70;
 
 #if defined(CONFIG_PXA3xx)
@@ -378,7 +410,7 @@ static int pxa_ssp_set_dai_tdm_slot(struct snd_soc_dai *cpu_dai,
         unsigned int tx_mask, unsigned int rx_mask, int slots, int slot_width)
 {
         struct ssp_priv *priv = cpu_dai->private_data;
-        struct ssp_device *ssp = priv->dev.ssp;
+        struct ssp_device *ssp = priv->ssp;
         u32 sscr0;
 
         sscr0 = ssp_read_reg(ssp, SSCR0);
@@ -413,7 +445,7 @@ static int pxa_ssp_set_dai_tristate(struct snd_soc_dai *cpu_dai,
         int tristate)
 {
         struct ssp_priv *priv = cpu_dai->private_data;
-        struct ssp_device *ssp = priv->dev.ssp;
+        struct ssp_device *ssp = priv->ssp;
         u32 sscr1;
 
         sscr1 = ssp_read_reg(ssp, SSCR1);
@@ -435,7 +467,7 @@ static int pxa_ssp_set_dai_fmt(struct snd_soc_dai *cpu_dai,
                 unsigned int fmt)
 {
         struct ssp_priv *priv = cpu_dai->private_data;
-        struct ssp_device *ssp = priv->dev.ssp;
+        struct ssp_device *ssp = priv->ssp;
         u32 sscr0;
         u32 sscr1;
         u32 sspsp;
@@ -530,7 +562,7 @@ static int pxa_ssp_hw_params(struct snd_pcm_substream *substream,
         struct snd_soc_pcm_runtime *rtd = substream->private_data;
         struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
         struct ssp_priv *priv = cpu_dai->private_data;
-        struct ssp_device *ssp = priv->dev.ssp;
+        struct ssp_device *ssp = priv->ssp;
         int chn = params_channels(params);
         u32 sscr0;
         u32 sspsp;
@@ -640,12 +672,12 @@ static int pxa_ssp_trigger(struct snd_pcm_substream *substream, int cmd,
         struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
         int ret = 0;
         struct ssp_priv *priv = cpu_dai->private_data;
-        struct ssp_device *ssp = priv->dev.ssp;
+        struct ssp_device *ssp = priv->ssp;
         int val;
 
         switch (cmd) {
         case SNDRV_PCM_TRIGGER_RESUME:
-                ssp_enable(&priv->dev);
+                ssp_enable(ssp);
                 break;
         case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
                 val = ssp_read_reg(ssp, SSCR1);
@@ -664,7 +696,7 @@ static int pxa_ssp_trigger(struct snd_pcm_substream *substream, int cmd,
                 else
                         val |= SSCR1_RSRE;
                 ssp_write_reg(ssp, SSCR1, val);
-                ssp_enable(&priv->dev);
+                ssp_enable(ssp);
                 break;
         case SNDRV_PCM_TRIGGER_STOP:
                 val = ssp_read_reg(ssp, SSCR1);
@@ -675,7 +707,7 @@ static int pxa_ssp_trigger(struct snd_pcm_substream *substream, int cmd,
                 ssp_write_reg(ssp, SSCR1, val);
                 break;
         case SNDRV_PCM_TRIGGER_SUSPEND:
-                ssp_disable(&priv->dev);
+                ssp_disable(ssp);
                 break;
         case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
                 val = ssp_read_reg(ssp, SSCR1);
@@ -705,8 +737,8 @@ static int pxa_ssp_probe(struct platform_device *pdev,
         if (!priv)
                 return -ENOMEM;
 
-        priv->dev.ssp = ssp_request(dai->id + 1, "SoC audio");
-        if (priv->dev.ssp == NULL) {
+        priv->ssp = ssp_request(dai->id + 1, "SoC audio");
+        if (priv->ssp == NULL) {
                 ret = -ENODEV;
                 goto err_priv;
         }
@@ -725,7 +757,7 @@ static void pxa_ssp_remove(struct platform_device *pdev,
                               struct snd_soc_dai *dai)
 {
         struct ssp_priv *priv = dai->private_data;
-        ssp_free(priv->dev.ssp);
+        ssp_free(priv->ssp);
 }
 
 #define PXA_SSP_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\