On 05/14/2013 01:53 PM, George Joseph wrote:
From: George Joseph Palathingal<[email protected]>
Adding DT support to the driver. Driver supports Exynos 4210, 4412 and 5250.
Signed-off-by: George Joseph Palathingal<[email protected]>
Cc: [email protected]
---
drivers/media/platform/s5p-jpeg/jpeg-core.c | 36 +++++++++++++++++++++++++--
1 file changed, 34 insertions(+), 2 deletions(-)
diff --git a/drivers/media/platform/s5p-jpeg/jpeg-core.c
b/drivers/media/platform/s5p-jpeg/jpeg-core.c
index f964566..b2bf412 100644
--- a/drivers/media/platform/s5p-jpeg/jpeg-core.c
+++ b/drivers/media/platform/s5p-jpeg/jpeg-core.c
@@ -970,6 +970,8 @@ const struct jpeg_vb2 jpeg_vb2_dma = {
.plane_addr = vb2_dma_contig_plane_dma_addr,
};
+static void *jpeg_get_drv_data(struct platform_device *pdev);
How about putting definition of the jpeg_get_drv_data() function and
the exynos_jpeg_match array above jpeg_probe() to avoid this forward
declaration ?
static int jpeg_probe(struct platform_device *pdev)
{
struct jpeg_dev *dev;
@@ -982,8 +984,7 @@ static int jpeg_probe(struct platform_device *pdev)
return -ENOMEM;
dev->plat_dev = pdev;
- dev->variant = (struct s5p_jpeg_variant *)
- platform_get_device_id(pdev)->driver_data;
+ dev->variant = (struct s5p_jpeg_variant *)jpeg_get_drv_data(pdev);
Casting is not needed here.
spin_lock_init(&dev->slock);
/* setup jpeg control */
@@ -1232,6 +1233,36 @@ static struct platform_device_id jpeg_driver_ids[] = {
MODULE_DEVICE_TABLE(platform, jpeg_driver_ids);
+static const struct of_device_id exynos_jpeg_match[] = {
+ {
+ .compatible = "samsung,s5pv210-jpeg",
+ .data =&jpeg_drvdata_v1,
+ }, {
+ .compatible = "samsung,exynos4212-jpeg",
+ .data =&jpeg_drvdata_v2,
+ },
+ {},
+};
+
+MODULE_DEVICE_TABLE(of, exynos_jpeg_match);
+
+static void *jpeg_get_drv_data(struct platform_device *pdev)
+{
+ struct s5p_jpeg_variant *driver_data = NULL;
Unnecessary NULL assignment.
+ if (pdev->dev.of_node) {
+ const struct of_device_id *match;
+ match = of_match_node(of_match_ptr(exynos_jpeg_match),
+ pdev->dev.of_node);
+ if (match)
+ driver_data = (struct s5p_jpeg_variant *)match->data;
+ } else {
Indentation is wrong here.
+ driver_data = (struct s5p_jpeg_variant *)
+ platform_get_device_id(pdev)->driver_data;
+ }
+ return driver_data;
+}
How about rewriting this function to something like:
static const void *jpeg_get_drv_data(struct platform_device *pdev)
{
struct device_node *node = pdev->dev.of_node;
const struct of_device_id *match;
if (node) {
match = of_match_node(exynos_jpeg_match, node);
return match ? match->data : NULL;
}
return (void *)platform_get_device_id(pdev)->driver_data;
}
?
static struct platform_driver jpeg_driver = {
.probe = jpeg_probe,
.remove = jpeg_remove,
@@ -1241,6 +1272,7 @@ static struct platform_driver jpeg_driver = {
.driver = {
.owner = THIS_MODULE,
.name = JPEG_NAME,
+ .of_match_table = exynos_jpeg_match,
.pm = NULL,
},
};
Thanks,
Sylwester
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