From: Muralidharan Karicheri <m-karicheri2@xxxxxx>
Following changes are done in this patch:-
1) removed the platform code and clk configuration. They are now
part of ccdc driver (part of the ccdc patches and platform patches 2-4)
2) Added proper error codes for ccdc register function
Reviewed-by: Vaibhav Hiremath <hvaibhav@xxxxxx>
Reviewed-by: Kevin Hilman <khilman@xxxxxxxxxxxxxxxxxxx>
Reviewed-by: Hans Verkuil <hverkuil@xxxxxxxxx>
Signed-off-by: Hans Verkuil <hverkuil@xxxxxxxxx>
Signed-off-by: Muralidharan Karicheri <m-karicheri2@xxxxxx>
---
Rebased to latest linux-next tree of v4l-dvb
This combines the two patches sent earlier to change the clock configuration
and converting ccdc drivers to platform drivers. This has updated comments
against v1 of these patches.
drivers/media/video/davinci/vpfe_capture.c | 131 +++-------------------------
1 files changed, 13 insertions(+), 118 deletions(-)
diff --git a/drivers/media/video/davinci/vpfe_capture.c b/drivers/media/video/davinci/vpfe_capture.c
index de22bc9..885cd54 100644
--- a/drivers/media/video/davinci/vpfe_capture.c
+++ b/drivers/media/video/davinci/vpfe_capture.c
@@ -107,9 +107,6 @@ struct ccdc_config {
int vpfe_probed;
/* name of ccdc device */
char name[32];
- /* for storing mem maps for CCDC */
- int ccdc_addr_size;
- void *__iomem ccdc_addr;
};
/* data structures */
@@ -229,7 +226,6 @@ int vpfe_register_ccdc_device(struct ccdc_hw_device *dev)
BUG_ON(!dev->hw_ops.set_image_window);
BUG_ON(!dev->hw_ops.get_image_window);
BUG_ON(!dev->hw_ops.get_line_length);
- BUG_ON(!dev->hw_ops.setfbaddr);
BUG_ON(!dev->hw_ops.getfid);
mutex_lock(&ccdc_lock);
@@ -240,25 +236,23 @@ int vpfe_register_ccdc_device(struct ccdc_hw_device *dev)
* walk through it during vpfe probe
*/
printk(KERN_ERR "vpfe capture not initialized\n");
- ret = -1;
+ ret = -EFAULT;
goto unlock;
}
if (strcmp(dev->name, ccdc_cfg->name)) {
/* ignore this ccdc */
- ret = -1;
+ ret = -EINVAL;
goto unlock;
}
if (ccdc_dev) {
printk(KERN_ERR "ccdc already registered\n");
- ret = -1;
+ ret = -EINVAL;
goto unlock;
}
ccdc_dev = dev;
- dev->hw_ops.set_ccdc_base(ccdc_cfg->ccdc_addr,
- ccdc_cfg->ccdc_addr_size);
unlock:
mutex_unlock(&ccdc_lock);
return ret;
@@ -1786,61 +1780,6 @@ static struct vpfe_device *vpfe_initialize(void)
return vpfe_dev;
}
-static void vpfe_disable_clock(struct vpfe_device *vpfe_dev)
-{
- struct vpfe_config *vpfe_cfg = vpfe_dev->cfg;
-
- clk_disable(vpfe_cfg->vpssclk);
- clk_put(vpfe_cfg->vpssclk);
- clk_disable(vpfe_cfg->slaveclk);
- clk_put(vpfe_cfg->slaveclk);
- v4l2_info(vpfe_dev->pdev->driver,
- "vpfe vpss master & slave clocks disabled\n");
-}
-
-static int vpfe_enable_clock(struct vpfe_device *vpfe_dev)
-{
- struct vpfe_config *vpfe_cfg = vpfe_dev->cfg;
- int ret = -ENOENT;
-
- vpfe_cfg->vpssclk = clk_get(vpfe_dev->pdev, "vpss_master");
- if (NULL == vpfe_cfg->vpssclk) {
- v4l2_err(vpfe_dev->pdev->driver, "No clock defined for"
- "vpss_master\n");
- return ret;
- }
-
- if (clk_enable(vpfe_cfg->vpssclk)) {
- v4l2_err(vpfe_dev->pdev->driver,
- "vpfe vpss master clock not enabled\n");
- goto out;
- }
- v4l2_info(vpfe_dev->pdev->driver,
- "vpfe vpss master clock enabled\n");
-
- vpfe_cfg->slaveclk = clk_get(vpfe_dev->pdev, "vpss_slave");
- if (NULL == vpfe_cfg->slaveclk) {
- v4l2_err(vpfe_dev->pdev->driver,
- "No clock defined for vpss slave\n");
- goto out;
- }
-
- if (clk_enable(vpfe_cfg->slaveclk)) {
- v4l2_err(vpfe_dev->pdev->driver,
- "vpfe vpss slave clock not enabled\n");
- goto out;
- }
- v4l2_info(vpfe_dev->pdev->driver, "vpfe vpss slave clock enabled\n");
- return 0;
-out:
- if (vpfe_cfg->vpssclk)
- clk_put(vpfe_cfg->vpssclk);
- if (vpfe_cfg->slaveclk)
- clk_put(vpfe_cfg->slaveclk);
-
- return -1;
-}
-
/*
* vpfe_probe : This function creates device entries by register
* itself to the V4L2 driver and initializes fields of each
@@ -1870,7 +1809,7 @@ static __init int vpfe_probe(struct platform_device *pdev)
if (NULL == pdev->dev.platform_data) {
v4l2_err(pdev->dev.driver, "Unable to get vpfe config\n");
- ret = -ENOENT;
+ ret = -ENODEV;
goto probe_free_dev_mem;
}
@@ -1884,18 +1823,13 @@ static __init int vpfe_probe(struct platform_device *pdev)
goto probe_free_dev_mem;
}
- /* enable vpss clocks */
- ret = vpfe_enable_clock(vpfe_dev);
- if (ret)
- goto probe_free_dev_mem;
-
mutex_lock(&ccdc_lock);
/* Allocate memory for ccdc configuration */
ccdc_cfg = kmalloc(sizeof(struct ccdc_config), GFP_KERNEL);
if (NULL == ccdc_cfg) {
v4l2_err(pdev->dev.driver,
"Memory allocation failed for ccdc_cfg\n");
- goto probe_disable_clock;
+ goto probe_free_dev_mem;
}
strncpy(ccdc_cfg->name, vpfe_cfg->ccdc, 32);
@@ -1904,61 +1838,34 @@ static __init int vpfe_probe(struct platform_device *pdev)
if (!res1) {
v4l2_err(pdev->dev.driver,
"Unable to get interrupt for VINT0\n");
- ret = -ENOENT;
- goto probe_disable_clock;
+ ret = -ENODEV;
+ goto probe_free_ccdc_cfg_mem;
}
vpfe_dev->ccdc_irq0 = res1->start;
/* Get VINT1 irq resource */
- res1 = platform_get_resource(pdev,
- IORESOURCE_IRQ, 1);
+ res1 = platform_get_resource(pdev, IORESOURCE_IRQ, 1);
if (!res1) {
v4l2_err(pdev->dev.driver,
"Unable to get interrupt for VINT1\n");
- ret = -ENOENT;
- goto probe_disable_clock;
+ ret = -ENODEV;
+ goto probe_free_ccdc_cfg_mem;
}
vpfe_dev->ccdc_irq1 = res1->start;
- /* Get address base of CCDC */
- res1 = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!res1) {
- v4l2_err(pdev->dev.driver,
- "Unable to get register address map\n");
- ret = -ENOENT;
- goto probe_disable_clock;
- }
-
- ccdc_cfg->ccdc_addr_size = res1->end - res1->start + 1;
- if (!request_mem_region(res1->start, ccdc_cfg->ccdc_addr_size,
- pdev->dev.driver->name)) {
- v4l2_err(pdev->dev.driver,
- "Failed request_mem_region for ccdc base\n");
- ret = -ENXIO;
- goto probe_disable_clock;
- }
- ccdc_cfg->ccdc_addr = ioremap_nocache(res1->start,
- ccdc_cfg->ccdc_addr_size);
- if (!ccdc_cfg->ccdc_addr) {
- v4l2_err(pdev->dev.driver, "Unable to ioremap ccdc addr\n");
- ret = -ENXIO;
- goto probe_out_release_mem1;
- }
-
ret = request_irq(vpfe_dev->ccdc_irq0, vpfe_isr, IRQF_DISABLED,
"vpfe_capture0", vpfe_dev);
if (0 != ret) {
v4l2_err(pdev->dev.driver, "Unable to request interrupt\n");
- goto probe_out_unmap1;
+ goto probe_free_ccdc_cfg_mem;
}
/* Allocate memory for video device */
vfd = video_device_alloc();
if (NULL == vfd) {
ret = -ENOMEM;
- v4l2_err(pdev->dev.driver,
- "Unable to alloc video device\n");
+ v4l2_err(pdev->dev.driver, "Unable to alloc video device\n");
goto probe_out_release_irq;
}
@@ -2073,12 +1980,7 @@ probe_out_video_release:
video_device_release(vpfe_dev->video_dev);
probe_out_release_irq:
free_irq(vpfe_dev->ccdc_irq0, vpfe_dev);
-probe_out_unmap1:
- iounmap(ccdc_cfg->ccdc_addr);
-probe_out_release_mem1:
- release_mem_region(res1->start, res1->end - res1->start + 1);
-probe_disable_clock:
- vpfe_disable_clock(vpfe_dev);
+probe_free_ccdc_cfg_mem:
mutex_unlock(&ccdc_lock);
kfree(ccdc_cfg);
probe_free_dev_mem:
@@ -2092,7 +1994,6 @@ probe_free_dev_mem:
static int __devexit vpfe_remove(struct platform_device *pdev)
{
struct vpfe_device *vpfe_dev = platform_get_drvdata(pdev);
- struct resource *res;
v4l2_info(pdev->dev.driver, "vpfe_remove\n");
@@ -2100,12 +2001,6 @@ static int __devexit vpfe_remove(struct platform_device *pdev)
kfree(vpfe_dev->sd);
v4l2_device_unregister(&vpfe_dev->v4l2_dev);
video_unregister_device(vpfe_dev->video_dev);
- mutex_lock(&ccdc_lock);
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- release_mem_region(res->start, res->end - res->start + 1);
- iounmap(ccdc_cfg->ccdc_addr);
- mutex_unlock(&ccdc_lock);
- vpfe_disable_clock(vpfe_dev);
kfree(vpfe_dev);
kfree(ccdc_cfg);
return 0;
--
1.6.0.4
--
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