From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752422AbbFAJXJ (ORCPT ); Mon, 1 Jun 2015 05:23:09 -0400 Received: from eusmtp01.atmel.com ([212.144.249.243]:31709 "EHLO eusmtp01.atmel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751750AbbFAJW6 (ORCPT ); Mon, 1 Jun 2015 05:22:58 -0400 Date: Mon, 1 Jun 2015 11:23:22 +0200 From: Ludovic Desroches To: Cyrille Pitchen CC: , , , , Subject: Re: [PATCH 2/3] i2c: at91: print hardware version Message-ID: <20150601092322.GJ25118@odux.rfo.atmel.com> Mail-Followup-To: Cyrille Pitchen , nicolas.ferre@atmel.com, linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org References: <5d08690d152e10592443224b46b677071196f730.1432907105.git.cyrille.pitchen@atmel.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline In-Reply-To: <5d08690d152e10592443224b46b677071196f730.1432907105.git.cyrille.pitchen@atmel.com> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, May 29, 2015 at 03:50:09PM +0200, Cyrille Pitchen wrote: > The probe() function now prints the hardware version of the I2C controller > > Signed-off-by: Cyrille Pitchen Acked-by: Ludovic Desroches > --- > drivers/i2c/busses/i2c-at91.c | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/drivers/i2c/busses/i2c-at91.c b/drivers/i2c/busses/i2c-at91.c > index b48be58..1549b29 100644 > --- a/drivers/i2c/busses/i2c-at91.c > +++ b/drivers/i2c/busses/i2c-at91.c > @@ -85,6 +85,8 @@ > #define AT91_TWI_ACR_DATAL(len) ((len) & 0xff) > #define AT91_TWI_ACR_DIR (1 << 8) > > +#define AT91_TWI_VER 0x00fc /* Version Register */ > + > struct at91_twi_pdata { > unsigned clk_max_div; > unsigned clk_offset; > @@ -867,6 +869,8 @@ static int at91_twi_probe(struct platform_device *pdev) > return rc; > } > > + dev_info(dev->dev, "version: 0x%x\n", at91_twi_read(dev, AT91_TWI_VER)); > + > rc = of_property_read_u32(dev->dev->of_node, "clock-frequency", > &bus_clk_rate); > if (rc) > -- > 1.8.2.2 >