From f860f0b1ea76b9f15d24db8fa98823eb15273afb Mon Sep 17 00:00:00 2001 From: Felipe Balbi Date: Thu, 26 Feb 2015 11:01:03 -0600 Subject: [PATCH] usb: musb: dsps: check for the single bit We want to check if that particular bit is set. It could very well be that bootloader (or romcode) has fiddled with MUSB before us which could leave other bits set in this register. Tested-by: Bin Liu Signed-off-by: Felipe Balbi --- drivers/usb/musb/musb_dsps.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/musb/musb_dsps.c b/drivers/usb/musb/musb_dsps.c index 8f96e79dd069..e210b75fb6f2 100644 --- a/drivers/usb/musb/musb_dsps.c +++ b/drivers/usb/musb/musb_dsps.c @@ -475,7 +475,7 @@ static int dsps_musb_init(struct musb *musb) * logic enabled. */ val = dsps_readb(musb->mregs, MUSB_BABBLE_CTL); - if (val == MUSB_BABBLE_RCV_DISABLE) { + if (val & MUSB_BABBLE_RCV_DISABLE) { glue->sw_babble_enabled = true; val |= MUSB_BABBLE_SW_SESSION_CTRL; dsps_writeb(musb->mregs, MUSB_BABBLE_CTL, val); -- 2.20.1