linux-kernel - Re: linux-next: build failure after merge of the voltage tree

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Date:	Wed, 11 May 2011 01:43:02 -0500
From:	Jorge Eduardo Candelaria <jedu@...mlogic.co.uk>
To:	Stephen Rothwell <sfr@...b.auug.org.au>
Cc:	Liam Girdwood <lrg@...mlogic.co.uk>, linux-next@...r.kernel.org,
	linux-kernel@...r.kernel.org, Graeme Gregory <gg@...mlogic.co.uk>
Subject: Re: linux-next: build failure after merge of the voltage tree


On May 10, 2011, at 9:27 PM, Stephen Rothwell wrote:

> Hi Jorge,
> 
> On Tue, 10 May 2011 12:30:36 -0500 Jorge Eduardo Candelaria <jedu@...mlogic.co.uk> wrote:
>> 
>> On May 10, 2011, at 3:38 AM, Liam Girdwood wrote:
>> 
>>> On Tue, 2011-05-10 at 12:44 +1000, Stephen Rothwell wrote:
>>>> Hi Liam,
>>>> 
>>>> After merging the voltage tree, today's linux-next build (x86_64
>>>> allmodconfig) failed like this:
>>>> 
>>>> ERROR: "tps65910_gpio_init" [drivers/mfd/tps65910.ko] undefined!
>>>> ERROR: "tps65910_irq_init" [drivers/mfd/tps65910.ko] undefined!
>>>> ERROR: "irq_modify_status" [drivers/mfd/tps65910-irq.ko] undefined!
>>>> ERROR: "irq_set_chip_and_handler_name" [drivers/mfd/tps65910-irq.ko] undefined!
>>>> ERROR: "handle_edge_irq" [drivers/mfd/tps65910-irq.ko] undefined!
>>>> 
>>>> I have used the voltage tree from next-20110509 for today.
>>> 
>>> Jorge, could you send a fix for this today.
>> 
>> The following patch should solve this:
>> 
>> From: Jorge Eduardo Candelaria <jedu@...mlogic.co.uk>
>> MFD: Fix TPS65910 build
>> 
>> Support for tps65910 as a module is not available. The driver can
>> only be compiled as built-in. OTOH, the regulator driver can still
>> be built as module without breaking the compilation.
>> 
>> Signed-off-by: Jorge Eduardo Candelaria <jedu@...mlogic.co.uk>
> 
> Today (even with the above patch included) I got these errors from the
> x86_64 allmodconfig build:
> 
> tps65910.c:(.text+0xf4140): undefined reference to `i2c_master_send'
> drivers/built-in.o: In function `tps65910_i2c_read':
> tps65910.c:(.text+0xf41d2): undefined reference to `i2c_transfer'
> drivers/built-in.o: In function `tps65910_i2c_init':
> tps65910.c:(.init.text+0xcb83): undefined reference to `i2c_register_driver'
> drivers/built-in.o: In function `tps65910_i2c_exit':
> tps65910.c:(.exit.text+0x6e0): undefined reference to `i2c_del_driver'
> 
> I have used the voltage tree from next-20110509 again today.

Following patch should fix the dependency problems. Please review:

From: Jorge Eduardo Candelaria <jedu@...mlogic.co.uk>
[PATCH] MFD: TPS65910: Fix I2C dependency

TPS65910 driver can only be compiled built-in, so the I2C driver
should be as well.

Signed-off-by: Jorge Eduardo Candelaria <jedu@...mlogic.co.uk>
---
 drivers/mfd/Kconfig |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index c78865e..0131d49 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -673,7 +673,7 @@ config MFD_OMAP_USB_HOST
 
 config MFD_TPS65910
 	bool "TPS65910 Power Management chip"
-	depends on I2C && GPIOLIB
+	depends on I2C=y && GPIOLIB
 	select MFD_CORE
 	help
 	  if you say yes here you get support for the TPS65910 series of
-- 
1.7.1

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