Re: [PATCH 1/3] media: aspeed: Rework memory mapping in probe

From: Eddie James
Date: Tue Jan 07 2020 - 14:17:18 EST



On 1/6/20 9:43 PM, Joel Stanley wrote:
Use the recently introduced function devm_platform_ioremap_resource to
save a few lines of code. This makes the driver match common platform
device probe patterns.


Reviewed-by: Eddie James <eajames@xxxxxxxxxxxxx>


Thanks Joel!



Signed-off-by: Joel Stanley <joel@xxxxxxxxx>
---
drivers/media/platform/aspeed-video.c | 16 ++++++----------
1 file changed, 6 insertions(+), 10 deletions(-)

diff --git a/drivers/media/platform/aspeed-video.c b/drivers/media/platform/aspeed-video.c
index d8593cb2ae84..8f849d9866af 100644
--- a/drivers/media/platform/aspeed-video.c
+++ b/drivers/media/platform/aspeed-video.c
@@ -1655,14 +1655,17 @@ static int aspeed_video_init(struct aspeed_video *video)
static int aspeed_video_probe(struct platform_device *pdev)
{
+ struct aspeed_video *video;
int rc;
- struct resource *res;
- struct aspeed_video *video =
- devm_kzalloc(&pdev->dev, sizeof(*video), GFP_KERNEL);
+ video = devm_kzalloc(&pdev->dev, sizeof(*video), GFP_KERNEL);
if (!video)
return -ENOMEM;
+ video->base = devm_platform_ioremap_resource(pdev, 0);
+ if (IS_ERR(video->base))
+ return PTR_ERR(video->base);
+
video->frame_rate = 30;
video->dev = &pdev->dev;
spin_lock_init(&video->lock);
@@ -1671,13 +1674,6 @@ static int aspeed_video_probe(struct platform_device *pdev)
INIT_DELAYED_WORK(&video->res_work, aspeed_video_resolution_work);
INIT_LIST_HEAD(&video->buffers);
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-
- video->base = devm_ioremap_resource(video->dev, res);
-
- if (IS_ERR(video->base))
- return PTR_ERR(video->base);
-
rc = aspeed_video_init(video);
if (rc)
return rc;