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authorKuninori Morimoto <kuninori.morimoto.gx@renesas.com>2012-10-11 21:49:38 -0700
committerFelipe Balbi <balbi@ti.com>2012-10-16 12:47:40 +0300
commitd5c6a1e024dd5acd6ad2e1a6eb6a2fd5c15c50f1 (patch)
treef3b9cf4c413adea7d4a75f4682a741981c484579 /drivers/usb/renesas_usbhs
parentc2fa3edc58a262dfcb7aea78e24661e90e00098c (diff)
downloadop-kernel-dev-d5c6a1e024dd5acd6ad2e1a6eb6a2fd5c15c50f1.zip
op-kernel-dev-d5c6a1e024dd5acd6ad2e1a6eb6a2fd5c15c50f1.tar.gz
usb: renesas_usbhs: fixup interrupt status clear method
When interrupt happened, renesas_usbhs driver gets irq status by usbhs_status_get_each_irq(), and cleared all status by using 0. But, this method is incorrect, since extra interrupt might occur between them. This patch cleared corresponding bits only Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/usb/renesas_usbhs')
-rw-r--r--drivers/usb/renesas_usbhs/mod.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/usb/renesas_usbhs/mod.c b/drivers/usb/renesas_usbhs/mod.c
index 35c5208..61933a9 100644
--- a/drivers/usb/renesas_usbhs/mod.c
+++ b/drivers/usb/renesas_usbhs/mod.c
@@ -273,9 +273,9 @@ static irqreturn_t usbhs_interrupt(int irq, void *data)
usbhs_write(priv, INTSTS0, ~irq_state.intsts0 & INTSTS0_MAGIC);
usbhs_write(priv, INTSTS1, ~irq_state.intsts1 & INTSTS1_MAGIC);
- usbhs_write(priv, BRDYSTS, 0);
- usbhs_write(priv, NRDYSTS, 0);
- usbhs_write(priv, BEMPSTS, 0);
+ usbhs_write(priv, BRDYSTS, ~irq_state.brdysts);
+ usbhs_write(priv, NRDYSTS, ~irq_state.nrdysts);
+ usbhs_write(priv, BEMPSTS, ~irq_state.bempsts);
/*
* call irq callback functions
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