Merge branch 'topic/omap' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into HEAD

3 files changed, 62 insertions, 42 deletions

diff --git a/sound/soc/omap/omap-dmic.c b/sound/soc/omap/omap-dmic.c
index ba49ccd9eed9..8ebaf117d81f 100644
--- a/sound/soc/omap/omap-dmic.c
+++ b/sound/soc/omap/omap-dmic.c
@@ -493,19 +493,9 @@ static int asoc_dmic_probe(struct platform_device *pdev)
                 goto err_put_clk;
         }
 
-        if (!devm_request_mem_region(&pdev->dev, res->start,
-                                     resource_size(res), pdev->name)) {
-                dev_err(dmic->dev, "memory region already claimed\n");
-                ret = -ENODEV;
-                goto err_put_clk;
-        }
-
-        dmic->io_base = devm_ioremap(&pdev->dev, res->start,
-                                     resource_size(res));
-        if (!dmic->io_base) {
-                ret = -ENOMEM;
-                goto err_put_clk;
-        }
+        dmic->io_base = devm_ioremap_resource(&pdev->dev, res);
+        if (IS_ERR(dmic->io_base))
+                return PTR_ERR(dmic->io_base);
 
         ret = snd_soc_register_dai(&pdev->dev, &omap_dmic_dai);
         if (ret)
diff --git a/sound/soc/omap/omap-mcpdm.c b/sound/soc/omap/omap-mcpdm.c
index 5ca11bdac21e..e1d3998cb0a5 100644
--- a/sound/soc/omap/omap-mcpdm.c
+++ b/sound/soc/omap/omap-mcpdm.c
@@ -43,7 +43,10 @@
 #include "omap-mcpdm.h"
 #include "omap-pcm.h"
 
-#define OMAP44XX_MCPDM_L3_BASE          0x49032000
+struct mcpdm_link_config {
+        u32 link_mask; /* channel mask for the direction */
+        u32 threshold; /* FIFO threshold */
+};
 
 struct omap_mcpdm {
         struct device *dev;
@@ -53,16 +56,14 @@ struct omap_mcpdm {
 
         struct mutex mutex;
 
-        /* channel data */
-        u32 dn_channels;
-        u32 up_channels;
-
-        /* McPDM FIFO thresholds */
-        u32 dn_threshold;
-        u32 up_threshold;
+        /* Playback/Capture configuration */
+        struct mcpdm_link_config config[2];
 
         /* McPDM dn offsets for rx1, and 2 channels */
         u32 dn_rx_offset;
+
+        /* McPDM needs to be restarted due to runtime reconfiguration */
+        bool restart;
 };
 
 /*
@@ -130,11 +131,12 @@ static void omap_mcpdm_reg_dump(struct omap_mcpdm *mcpdm) {}
 static void omap_mcpdm_start(struct omap_mcpdm *mcpdm)
 {
         u32 ctrl = omap_mcpdm_read(mcpdm, MCPDM_REG_CTRL);
+        u32 link_mask = mcpdm->config[0].link_mask | mcpdm->config[1].link_mask;
 
         ctrl |= (MCPDM_SW_DN_RST | MCPDM_SW_UP_RST);
         omap_mcpdm_write(mcpdm, MCPDM_REG_CTRL, ctrl);
 
-        ctrl |= mcpdm->dn_channels | mcpdm->up_channels;
+        ctrl |= link_mask;
         omap_mcpdm_write(mcpdm, MCPDM_REG_CTRL, ctrl);
 
         ctrl &= ~(MCPDM_SW_DN_RST | MCPDM_SW_UP_RST);
@@ -148,11 +150,12 @@ static void omap_mcpdm_start(struct omap_mcpdm *mcpdm)
 static void omap_mcpdm_stop(struct omap_mcpdm *mcpdm)
 {
         u32 ctrl = omap_mcpdm_read(mcpdm, MCPDM_REG_CTRL);
+        u32 link_mask = MCPDM_PDM_DN_MASK | MCPDM_PDM_UP_MASK;
 
         ctrl |= (MCPDM_SW_DN_RST | MCPDM_SW_UP_RST);
         omap_mcpdm_write(mcpdm, MCPDM_REG_CTRL, ctrl);
 
-        ctrl &= ~(mcpdm->dn_channels | mcpdm->up_channels);
+        ctrl &= ~(link_mask);
         omap_mcpdm_write(mcpdm, MCPDM_REG_CTRL, ctrl);
 
         ctrl &= ~(MCPDM_SW_DN_RST | MCPDM_SW_UP_RST);
@@ -188,8 +191,10 @@ static void omap_mcpdm_open_streams(struct omap_mcpdm *mcpdm)
                 omap_mcpdm_write(mcpdm, MCPDM_REG_DN_OFFSET, dn_offset);
         }
 
-        omap_mcpdm_write(mcpdm, MCPDM_REG_FIFO_CTRL_DN, mcpdm->dn_threshold);
-        omap_mcpdm_write(mcpdm, MCPDM_REG_FIFO_CTRL_UP, mcpdm->up_threshold);
+        omap_mcpdm_write(mcpdm, MCPDM_REG_FIFO_CTRL_DN,
+                         mcpdm->config[SNDRV_PCM_STREAM_PLAYBACK].threshold);
+        omap_mcpdm_write(mcpdm, MCPDM_REG_FIFO_CTRL_UP,
+                         mcpdm->config[SNDRV_PCM_STREAM_CAPTURE].threshold);
 
         omap_mcpdm_write(mcpdm, MCPDM_REG_DMAENABLE_SET,
                         MCPDM_DMA_DN_ENABLE | MCPDM_DMA_UP_ENABLE);
@@ -283,6 +288,8 @@ static void omap_mcpdm_dai_shutdown(struct snd_pcm_substream *substream,
                 if (omap_mcpdm_active(mcpdm)) {
                         omap_mcpdm_stop(mcpdm);
                         omap_mcpdm_close_streams(mcpdm);
+                        mcpdm->config[0].link_mask = 0;
+                        mcpdm->config[1].link_mask = 0;
                 }
         }
 
@@ -296,6 +303,7 @@ static int omap_mcpdm_dai_hw_params(struct snd_pcm_substream *substream,
         struct omap_mcpdm *mcpdm = snd_soc_dai_get_drvdata(dai);
         int stream = substream->stream;
         struct omap_pcm_dma_data *dma_data;
+        u32 threshold;
         int channels;
         int link_mask = 0;
 
@@ -325,16 +333,32 @@ static int omap_mcpdm_dai_hw_params(struct snd_pcm_substream *substream,
 
         dma_data = snd_soc_dai_get_dma_data(dai, substream);
 
+        threshold = mcpdm->config[stream].threshold;
         /* Configure McPDM channels, and DMA packet size */
         if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
-                mcpdm->dn_channels = link_mask << 3;
+                link_mask <<= 3;
+
+                /* If capture is not running assume a stereo stream to come */
+                if (!mcpdm->config[!stream].link_mask)
+                        mcpdm->config[!stream].link_mask = 0x3;
+
                 dma_data->packet_size =
-                        (MCPDM_DN_THRES_MAX - mcpdm->dn_threshold) * channels;
+                                (MCPDM_DN_THRES_MAX - threshold) * channels;
         } else {
-                mcpdm->up_channels = link_mask << 0;
-                dma_data->packet_size = mcpdm->up_threshold * channels;
+                /* If playback is not running assume a stereo stream to come */
+                if (!mcpdm->config[!stream].link_mask)
+                        mcpdm->config[!stream].link_mask = (0x3 << 3);
+
+                dma_data->packet_size = threshold * channels;
         }
 
+        /* Check if we need to restart McPDM with this stream */
+        if (mcpdm->config[stream].link_mask &&
+            mcpdm->config[stream].link_mask != link_mask)
+                mcpdm->restart = true;
+
+        mcpdm->config[stream].link_mask = link_mask;
+
         return 0;
 }
 
@@ -346,6 +370,11 @@ static int omap_mcpdm_prepare(struct snd_pcm_substream *substream,
         if (!omap_mcpdm_active(mcpdm)) {
                 omap_mcpdm_start(mcpdm);
                 omap_mcpdm_reg_dump(mcpdm);
+        } else if (mcpdm->restart) {
+                omap_mcpdm_stop(mcpdm);
+                omap_mcpdm_start(mcpdm);
+                mcpdm->restart = false;
+                omap_mcpdm_reg_dump(mcpdm);
         }
 
         return 0;
@@ -369,7 +398,7 @@ static int omap_mcpdm_probe(struct snd_soc_dai *dai)
         pm_runtime_get_sync(mcpdm->dev);
         omap_mcpdm_write(mcpdm, MCPDM_REG_CTRL, 0x00);
 
-        ret = request_irq(mcpdm->irq, omap_mcpdm_irq_handler,
+        ret = devm_request_irq(mcpdm->dev, mcpdm->irq, omap_mcpdm_irq_handler,
                                 0, "McPDM", (void *)mcpdm);
 
         pm_runtime_put_sync(mcpdm->dev);
@@ -380,8 +409,9 @@ static int omap_mcpdm_probe(struct snd_soc_dai *dai)
         }
 
         /* Configure McPDM threshold values */
-        mcpdm->dn_threshold = 2;
-        mcpdm->up_threshold = MCPDM_UP_THRES_MAX - 3;
+        mcpdm->config[SNDRV_PCM_STREAM_PLAYBACK].threshold = 2;
+        mcpdm->config[SNDRV_PCM_STREAM_CAPTURE].threshold =
+                                                        MCPDM_UP_THRES_MAX - 3;
         return ret;
 }
 
@@ -389,7 +419,6 @@ static int omap_mcpdm_remove(struct snd_soc_dai *dai)
 {
         struct omap_mcpdm *mcpdm = snd_soc_dai_get_drvdata(dai);
 
-        free_irq(mcpdm->irq, (void *)mcpdm);
         pm_runtime_disable(mcpdm->dev);
 
         return 0;
@@ -465,14 +494,9 @@ static int asoc_mcpdm_probe(struct platform_device *pdev)
         if (res == NULL)
                 return -ENOMEM;
 
-        if (!devm_request_mem_region(&pdev->dev, res->start,
-                                     resource_size(res), "McPDM"))
-                return -EBUSY;
-
-        mcpdm->io_base = devm_ioremap(&pdev->dev, res->start,
-                                      resource_size(res));
-        if (!mcpdm->io_base)
-                return -ENOMEM;
+        mcpdm->io_base = devm_ioremap_resource(&pdev->dev, res);
+        if (IS_ERR(mcpdm->io_base))
+                return PTR_ERR(mcpdm->io_base);
 
         mcpdm->irq = platform_get_irq(pdev, 0);
         if (mcpdm->irq < 0)
diff --git a/sound/soc/omap/omap3pandora.c b/sound/soc/omap/omap3pandora.c
index 805512f2555a..9e46e1d8cb1b 100644
--- a/sound/soc/omap/omap3pandora.c
+++ b/sound/soc/omap/omap3pandora.c
@@ -80,12 +80,18 @@ static int omap3pandora_hw_params(struct snd_pcm_substream *substream,
 static int omap3pandora_dac_event(struct snd_soc_dapm_widget *w,
         struct snd_kcontrol *k, int event)
 {
+        int ret;
+
         /*
          * The PCM1773 DAC datasheet requires 1ms delay between switching
          * VCC power on/off and /PD pin high/low
          */
         if (SND_SOC_DAPM_EVENT_ON(event)) {
-                regulator_enable(omap3pandora_dac_reg);
+                ret = regulator_enable(omap3pandora_dac_reg);
+                if (ret) {
+                        dev_err(w->dapm->dev, "Failed to power DAC: %d\n", ret);
+                        return ret;
+                }
                 mdelay(1);
                 gpio_set_value(OMAP3_PANDORA_DAC_POWER_GPIO, 1);
         } else {