linux-kernel - [PATCH v2 2/2] USB: at91: using USBA_NR

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Message-Id: <1392775664-16404-2-git-send-email-voice.shen@atmel.com>
Date:	Wed, 19 Feb 2014 10:07:44 +0800
From:	Bo Shen <voice.shen@...el.com>
To:	Felipe Balbi <balbi@...com>
Cc:	nicolas.ferre@...el.com, Bo Shen <voice.shen@...el.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	linux-arm-kernel@...ts.infradead.org, linux-usb@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH v2 2/2] USB: at91: using USBA_NR_DMAS for DMA channels

The SoCs earlier than sama5d3, they have the same number endpoints
and DMA channels. In driver code, they use the same definition
USBA_NR_ENDPOINTS for both endpoints and dma channels. However,
in sama5d3, it has different number for endpoints and DMA channels.
So, define a new micro USBA_NR_DMAs for DMA channels. And the
USBA_NR_ENDPOINS is not used anymore, remove it at the same time.

Signed-off-by: Bo Shen <voice.shen@...el.com>
---
Changes in v2:
  - Make the commit message more clearer.

 drivers/usb/gadget/atmel_usba_udc.c | 2 +-
 drivers/usb/gadget/atmel_usba_udc.h | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/gadget/atmel_usba_udc.c b/drivers/usb/gadget/atmel_usba_udc.c
index 7e67a81..5cded1c 100644
--- a/drivers/usb/gadget/atmel_usba_udc.c
+++ b/drivers/usb/gadget/atmel_usba_udc.c
@@ -1661,7 +1661,7 @@ static irqreturn_t usba_udc_irq(int irq, void *devid)
 	if (dma_status) {
 		int i;
 
-		for (i = 1; i < USBA_NR_ENDPOINTS; i++)
+		for (i = 1; i < USBA_NR_DMAS; i++)
 			if (dma_status & (1 << i))
 				usba_dma_irq(udc, &udc->usba_ep[i]);
 	}
diff --git a/drivers/usb/gadget/atmel_usba_udc.h b/drivers/usb/gadget/atmel_usba_udc.h
index 2922db5..a70706e 100644
--- a/drivers/usb/gadget/atmel_usba_udc.h
+++ b/drivers/usb/gadget/atmel_usba_udc.h
@@ -210,7 +210,7 @@
 #define USBA_FIFO_BASE(x)	((x) << 16)
 
 /* Synth parameters */
-#define USBA_NR_ENDPOINTS	7
+#define USBA_NR_DMAS		7
 
 #define EP0_FIFO_SIZE		64
 #define EP0_EPT_SIZE		USBA_EPT_SIZE_64
-- 
1.8.5.2

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