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authorKuninori Morimoto <kuninori.morimoto.gx@renesas.com>2012-10-12 00:49:38 -0400
committerFelipe Balbi <balbi@ti.com>2012-10-16 05:47:40 -0400
commitd5c6a1e024dd5acd6ad2e1a6eb6a2fd5c15c50f1 (patch)
treef3b9cf4c413adea7d4a75f4682a741981c484579 /drivers
parentc2fa3edc58a262dfcb7aea78e24661e90e00098c (diff)
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')
-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 35c5208f3249..61933a90e5bf 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)
273 usbhs_write(priv, INTSTS0, ~irq_state.intsts0 & INTSTS0_MAGIC); 273 usbhs_write(priv, INTSTS0, ~irq_state.intsts0 & INTSTS0_MAGIC);
274 usbhs_write(priv, INTSTS1, ~irq_state.intsts1 & INTSTS1_MAGIC); 274 usbhs_write(priv, INTSTS1, ~irq_state.intsts1 & INTSTS1_MAGIC);
275 275
276 usbhs_write(priv, BRDYSTS, 0); 276 usbhs_write(priv, BRDYSTS, ~irq_state.brdysts);
277 usbhs_write(priv, NRDYSTS, 0); 277 usbhs_write(priv, NRDYSTS, ~irq_state.nrdysts);
278 usbhs_write(priv, BEMPSTS, 0); 278 usbhs_write(priv, BEMPSTS, ~irq_state.bempsts);
279 279
280 /* 280 /*
281 * call irq callback functions 281 * call irq callback functions