linux-kernel - Re: [PATCH net-next-2.6 v2] can: Topcliff: PCH

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Message-ID: <001801cb854f$527a2bc0$66f8800a@maildom.okisemi.com>
Date:	Tue, 16 Nov 2010 14:30:03 +0900
From:	"Tomoya MORINAGA" <tomoya-linux@....okisemi.com>
To:	"Marc Kleine-Budde" <mkl@...gutronix.de>
Cc:	"Wolfgang Grandegger" <wg@...ndegger.com>,
	"David S. Miller" <davem@...emloft.net>,
	"Wolfram Sang" <w.sang@...gutronix.de>,
	"Christian Pellegrin" <chripell@...e.org>,
	"Barry Song" <21cnbao@...il.com>,
	"Samuel Ortiz" <sameo@...ux.intel.com>,
	<socketcan-core@...ts.berlios.de>, <netdev@...r.kernel.org>,
	"LKML" <linux-kernel@...r.kernel.org>,
	<andrew.chih.howe.khor@...el.com>, <qi.wang@...el.com>,
	<margie.foster@...el.com>, <yong.y.wang@...el.com>,
	"Masayuki Ohtake" <masa-korg@....okisemi.com>,
	<kok.howg.ewe@...el.com>, <joel.clark@...el.com>
Subject: Re: [PATCH net-next-2.6 v2] can: Topcliff: PCH_CAN driver: Add Flow control,

Hi Marc,

On Monday, November 15, 2010 6:37 PM, Marc Kleine-Budde wrote :

> Either use ioread8 or ioread16 in both the rx and tx path.
I will modify to ioread16

>> +  if (ioread32(&priv->regs->treq2) & 0xfc00) {
> what does this if check?
This is for whether all tx requests are complete or not.

---
Thanks,

Tomoya MORINAGA
OKI SEMICONDUCTOR CO., LTD.
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