Hello.

On 10/7/2015 5:40 PM, Roman Alyautdin wrote:

Implement vbus_status  method of musb_platform_ops that allows
musb_core to properly represent the VBUS status of musb_dsps devices in
corresponding sysfs entry

Signed-off-by: Roman Alyautdin <ralyaut...@dev.rtsoft.ru>
---
  drivers/usb/musb/musb_dsps.c |   13 +++++++++++++
  1 file changed, 13 insertions(+)

diff --git a/drivers/usb/musb/musb_dsps.c b/drivers/usb/musb/musb_dsps.c
index 84512d1..9c00edf 100644
--- a/drivers/usb/musb/musb_dsps.c
+++ b/drivers/usb/musb/musb_dsps.c
@@ -632,6 +632,18 @@ static void dsps_read_fifo32(struct musb_hw_ep *hw_ep, u16 
len, u8 *dst)
        }
  }

+static int dsps_musb_vbus_status(struct musb *musb)
+{
+       void __iomem *mregs = musb->mregs;
+       u8 devctl;
+
+       devctl = dsps_readb(mregs, MUSB_DEVCTL);
+       if ((devctl & MUSB_DEVCTL_VBUS) == (3 << MUSB_DEVCTL_VBUS_SHIFT))

I don't see why this has to be is implemented in the DSPS glue layer. The DevCtl register is a standard MUSB one.

[...]

MBR, Sergei

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