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ASoC: OMAP4: McPDM: Convert to hwmod/omap_device

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In order to probe, and operate correctly, the OMAP McPDM driver needs to
be converted to use hwmod.
The device name has been changed to probe the driver.
Replace the clk_* with pm_runtime_* calls to manage the clocks correctly.
Missing request_mem_region/release_mem_region added.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@ti.com>
This commit is contained in:
Peter Ujfalusi 2011-08-02 14:04:26 +03:00
parent b199adfdff
commit 3a98cd6b2b
4 changed files with 23 additions and 20 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

38
sound/soc/omap/mcpdm.c
View File

@ -28,7 +28,7 @@
#include <linux/slab.h>
#include <linux/interrupt.h>
#include <linux/err.h>
#include <linux/clk.h>
#include <linux/pm_runtime.h>
#include <linux/delay.h>
#include <linux/io.h>
#include <linux/irq.h>
@ -322,11 +322,11 @@ static irqreturn_t omap_mcpdm_irq_handler(int irq, void *dev_id)
return IRQ_HANDLED;
}
int omap_mcpdm_request(void)
int omap_mcpdm_request(void)
{
int ret;
clk_enable(mcpdm->clk);
pm_runtime_get_sync(mcpdm->dev);
spin_lock(&mcpdm->lock);
@ -353,7 +353,8 @@ int omap_mcpdm_request(void)
return 0;
err:
clk_disable(mcpdm->clk);
mcpdm->free = 1;
pm_runtime_put_sync(mcpdm->dev);
return ret;
}
@ -368,7 +369,7 @@ void omap_mcpdm_free(void)
mcpdm->free = 1;
spin_unlock(&mcpdm->lock);
clk_disable(mcpdm->clk);
pm_runtime_put_sync(mcpdm->dev);
free_irq(mcpdm->irq, (void *)mcpdm);
}
@ -421,28 +422,29 @@ int __devinit omap_mcpdm_probe(struct platform_device *pdev)
spin_lock_init(&mcpdm->lock);
mcpdm->free = 1;
if (!request_mem_region(res->start, resource_size(res), "McPDM")) {
ret = -EBUSY;
goto err_resource;
}
mcpdm->io_base = ioremap(res->start, resource_size(res));
if (!mcpdm->io_base) {
ret = -ENOMEM;
goto err_resource;
goto err_remap;
}
mcpdm->irq = platform_get_irq(pdev, 0);
mcpdm->clk = clk_get(&pdev->dev, "pdm_ck");
if (IS_ERR(mcpdm->clk)) {
ret = PTR_ERR(mcpdm->clk);
dev_err(&pdev->dev, "unable to get pdm_ck: %d\n", ret);
goto err_clk;
}
mcpdm->dev = &pdev->dev;
platform_set_drvdata(pdev, mcpdm);
pm_runtime_enable(mcpdm->dev);
return 0;
err_clk:
iounmap(mcpdm->io_base);
err_remap:
release_mem_region(res->start, resource_size(res));
err_resource:
kfree(mcpdm);
exit:
@ -452,14 +454,16 @@ exit:
int __devexit omap_mcpdm_remove(struct platform_device *pdev)
{
struct omap_mcpdm *mcpdm_ptr = platform_get_drvdata(pdev);
struct resource *res;
platform_set_drvdata(pdev, NULL);
clk_put(mcpdm_ptr->clk);
pm_runtime_disable(mcpdm_ptr->dev);
iounmap(mcpdm_ptr->io_base);
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
release_mem_region(res->start, resource_size(res));
mcpdm_ptr->clk = NULL;
mcpdm_ptr->free = 0;
mcpdm_ptr->dev = NULL;

1
sound/soc/omap/mcpdm.h
View File

@ -131,7 +131,6 @@ struct omap_mcpdm {
spinlock_t lock;
struct omap_mcpdm_platform_data *pdata;
struct clk *clk;
struct omap_mcpdm_link *downlink;
struct omap_mcpdm_link *uplink;
struct completion irq_completion;

2
sound/soc/omap/omap-mcpdm.c
View File

@ -254,7 +254,7 @@ static int __devexit asoc_mcpdm_remove(struct platform_device *pdev)
static struct platform_driver asoc_mcpdm_driver = {
.driver = {
.name = "omap-mcpdm-dai",
.name = "omap-mcpdm",
.owner = THIS_MODULE,
},

2
sound/soc/omap/sdp4430.c
View File

@ -165,7 +165,7 @@ static int sdp4430_twl6040_init(struct snd_soc_pcm_runtime *rtd)
static struct snd_soc_dai_link sdp4430_dai = {
.name = "TWL6040",
.stream_name = "TWL6040",
.cpu_dai_name ="omap-mcpdm-dai",
.cpu_dai_name = "omap-mcpdm",
.codec_dai_name = "twl6040-hifi",
.platform_name = "omap-pcm-audio",
.codec_name = "twl6040-codec",