From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752279Ab3EIIeb (ORCPT ); Thu, 9 May 2013 04:34:31 -0400 Received: from smtp-out-110.synserver.de ([212.40.185.110]:1080 "EHLO smtp-out-110.synserver.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752152Ab3EIIe2 (ORCPT ); Thu, 9 May 2013 04:34:28 -0400 X-SynServer-TrustedSrc: 1 X-SynServer-AuthUser: lars@metafoo.de X-SynServer-PPID: 17293 Message-ID: <518B5F73.4010702@metafoo.de> Date: Thu, 09 May 2013 10:33:55 +0200 From: Lars-Peter Clausen User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:10.0.12) Gecko/20130116 Icedove/10.0.12 MIME-Version: 1.0 To: Axel Lin CC: Jonathan Cameron , Greg Kroah-Hartman , linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org, Wu Fengguang Subject: Re: [PATCH v3] iio: dac: Fix build error when CONFIG_SPI_MASTER=y && CONFIG_I2C=m References: <1368085759.3454.0.camel@phoenix> In-Reply-To: <1368085759.3454.0.camel@phoenix> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 05/09/2013 09:49 AM, Axel Lin wrote: > This patch fixes below build error when CONFIG_SPI_MASTER=y && CONFIG_I2C=m: > > drivers/built-in.o: In function `ad5064_i2c_write': > drivers/iio/dac/ad5064.c:608: undefined reference to `i2c_master_send' > drivers/built-in.o: In function `ad5064_i2c_register_driver': > drivers/iio/dac/ad5064.c:646: undefined reference to `i2c_register_driver' > drivers/built-in.o: In function `ad5064_i2c_unregister_driver': > drivers/iio/dac/ad5064.c:651: undefined reference to `i2c_del_driver' > make: *** [vmlinux] Error 1 > > When CONFIG_I2C=m, meaning we can't build the drivers in with I2C support. > Thus don't allow the drivers to be compiled as built-in when CONFIG_I2C=m. > > The real fix though is to break the driver apart into a SPI part, an I2C part > and a common part. But that's something for 3.11 while this is something for > 3.10/stable. > > Reported-by: Wu Fengguang > Signed-off-by: Axel Lin Thanks for taking care of this. Acked-by: Lars-Peter Clausen Jonathan when you apply this please also add: Reported-by: Randy Dunlap since he reported the issue as well > --- > v3: Update comment > > drivers/iio/dac/Kconfig | 6 +++--- > 1 file changed, 3 insertions(+), 3 deletions(-) > > diff --git a/drivers/iio/dac/Kconfig b/drivers/iio/dac/Kconfig > index f4a6f08..b61160b 100644 > --- a/drivers/iio/dac/Kconfig > +++ b/drivers/iio/dac/Kconfig > @@ -5,7 +5,7 @@ menu "Digital to analog converters" > > config AD5064 > tristate "Analog Devices AD5064 and similar multi-channel DAC driver" > - depends on (SPI_MASTER || I2C) > + depends on (SPI_MASTER && I2C!=m) || I2C > help > Say yes here to build support for Analog Devices AD5024, AD5025, AD5044, > AD5045, AD5064, AD5064-1, AD5065, AD5628, AD5629R, AD5648, AD5666, AD5668, > @@ -27,7 +27,7 @@ config AD5360 > > config AD5380 > tristate "Analog Devices AD5380/81/82/83/84/90/91/92 DAC driver" > - depends on (SPI_MASTER || I2C) > + depends on (SPI_MASTER && I2C!=m) || I2C > select REGMAP_I2C if I2C > select REGMAP_SPI if SPI_MASTER > help > @@ -57,7 +57,7 @@ config AD5624R_SPI > > config AD5446 > tristate "Analog Devices AD5446 and similar single channel DACs driver" > - depends on (SPI_MASTER || I2C) > + depends on (SPI_MASTER && I2C!=m) || I2C > help > Say yes here to build support for Analog Devices AD5300, AD5301, AD5310, > AD5311, AD5320, AD5321, AD5444, AD5446, AD5450, AD5451, AD5452, AD5453,