openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

usb: musb: davinci: fix resources passed to MUSB driver for DM6467 

After commit 09fc7d22b0 (usb: musb: fix incorrect
usage of  resource pointer), CPPI DMA driver on DaVinci DM6467 can't detect its
dedicated IRQ and so the MUSB IRQ  is erroneously used instead. This is because
only 2 resources are passed to the MUSB driver from the DaVinci glue layer,  so
fix  this by always copying 3 resources (it's  safe since a placeholder for the
3rd resource is always  there) and passing 'pdev->num_resources' instead of the
size of musb_resources[] to platform_device_add_resources().

Cc: <stable@vger.kernel.org> # 3.11+
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Sergei Shtylyov 2013-09-22 01:43:58 +04:00 committed by Felipe Balbi
parent 77a3a0aa39
commit ea78201e2e
1 changed files with 10 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
drivers/usb/musb/davinci.c
View File

@ -513,7 +513,7 @@ static const struct platform_device_info davinci_dev_info = {
static int davinci_probe(struct platform_device *pdev)
{
struct resource musb_resources[2];
struct resource musb_resources[3];
struct musb_hdrc_platform_data *pdata = dev_get_platdata(&pdev->dev);
struct platform_device *musb;
struct davinci_glue *glue;
@ -561,6 +561,15 @@ static int davinci_probe(struct platform_device *pdev)
musb_resources[1].end = pdev->resource[1].end;
musb_resources[1].flags = pdev->resource[1].flags;
/*
* For DM6467 3 resources are passed. A placeholder for the 3rd
* resource is always there, so it's safe to always copy it...
*/
musb_resources[2].name = pdev->resource[2].name;
musb_resources[2].start = pdev->resource[2].start;
musb_resources[2].end = pdev->resource[2].end;
musb_resources[2].flags = pdev->resource[2].flags;
pinfo = davinci_dev_info;
pinfo.parent = &pdev->dev;
pinfo.res = musb_resources;