Re: [patch] video/dvb: fix MEDIA_TUNER && FW_LOADER build error

From: Roman Zippel
Date: Sun May 25 2008 - 15:31:50 EST


Hi,

On Tue, 20 May 2008, Ingo Molnar wrote:

> the workaround i found was to move the select of FW_LOADER one level up,
> so that the buggy kconfig tool can notice it and can act appropriately.
> This problem can probably be worked around in other ways as well, i went
> for the minimal fix.
>
> Obviously, the kconfig tool should be fixed, it is not reasonable to
> expect driver authors to do manual dependency resolution (that kconfig
> itself already does) and uglify the Kconfig files. The kconfig tool did
> nothing to warn about this situation and did not prevent this faulty
> .config from being constructed.

If you had bothered to ask me, I could have told you that the answer is
rather simple: if you have problems with select, don't use it.
drivers/media/ is abusing select quite heavily, so it's no surprise it's
getting out of control, the patch below gets rid of select in the tuners
directory, others should be done in a similiar way.
One could now argue that this sort of thing could be done simpler, then
I'll agree, but select isn't the answer.

bye, Roman

---
drivers/media/common/tuners/Kconfig | 91 ++++++++++++++----------------------
1 file changed, 37 insertions(+), 54 deletions(-)

Index: linux-2.6/drivers/media/common/tuners/Kconfig
===================================================================
--- linux-2.6.orig/drivers/media/common/tuners/Kconfig
+++ linux-2.6/drivers/media/common/tuners/Kconfig
@@ -17,22 +17,9 @@ config MEDIA_ATTACH

If unsure say Y.

-config MEDIA_TUNER
- tristate
- default VIDEO_MEDIA && I2C
- depends on VIDEO_MEDIA && I2C
- select MEDIA_TUNER_XC2028 if !MEDIA_TUNER_CUSTOMIZE && HOTPLUG
- select MEDIA_TUNER_XC5000 if !MEDIA_TUNER_CUSTOMIZE && HOTPLUG
- select MEDIA_TUNER_MT20XX if !MEDIA_TUNER_CUSTOMIZE
- select MEDIA_TUNER_TDA8290 if !MEDIA_TUNER_CUSTOMIZE
- select MEDIA_TUNER_TEA5761 if !MEDIA_TUNER_CUSTOMIZE
- select MEDIA_TUNER_TEA5767 if !MEDIA_TUNER_CUSTOMIZE
- select MEDIA_TUNER_SIMPLE if !MEDIA_TUNER_CUSTOMIZE
- select MEDIA_TUNER_TDA9887 if !MEDIA_TUNER_CUSTOMIZE
-
menuconfig MEDIA_TUNER_CUSTOMIZE
bool "Customize analog and hybrid tuner modules to build"
- depends on MEDIA_TUNER
+ depends on VIDEO_MEDIA
help
This allows the user to deselect tuner drivers unnecessary
for their hardware from the build. Use this option with care
@@ -42,122 +29,118 @@ menuconfig MEDIA_TUNER_CUSTOMIZE

If unsure say N.

-if MEDIA_TUNER_CUSTOMIZE
-
config MEDIA_TUNER_SIMPLE
- tristate "Simple tuner support"
+ tristate "Simple tuner support" if MEDIA_TUNER_CUSTOMIZE
depends on VIDEO_MEDIA && I2C
select MEDIA_TUNER_TDA9887
- default m if MEDIA_TUNER_CUSTOMIZE
+ default y
help
Say Y here to include support for various simple tuners.

-config MEDIA_TUNER_TDA8290
- tristate "TDA 8290/8295 + 8275(a)/18271 tuner combo"
- depends on VIDEO_MEDIA && I2C
- select MEDIA_TUNER_TDA827X
- select MEDIA_TUNER_TDA18271
- default m if MEDIA_TUNER_CUSTOMIZE
- help
- Say Y here to include support for Philips TDA8290+8275(a) tuner.
-
config MEDIA_TUNER_TDA827X
- tristate "Philips TDA827X silicon tuner"
+ tristate "Philips TDA827X silicon tuner" if MEDIA_TUNER_CUSTOMIZE && DVB_FE_CUSTOMISE
depends on VIDEO_MEDIA && I2C
- default m if DVB_FE_CUSTOMISE
+ default DVB_CAPTURE_DRIVERS
help
A DVB-T silicon tuner module. Say Y when you want to support this tuner.

config MEDIA_TUNER_TDA18271
- tristate "NXP TDA18271 silicon tuner"
+ tristate "NXP TDA18271 silicon tuner" if MEDIA_TUNER_CUSTOMIZE && DVB_FE_CUSTOMISE
depends on VIDEO_MEDIA && I2C
- default m if DVB_FE_CUSTOMISE
+ default DVB_CAPTURE_DRIVERS
help
A silicon tuner module. Say Y when you want to support this tuner.

+config MEDIA_TUNER_TDA8290
+ tristate "TDA 8290/8295 + 8275(a)/18271 tuner combo" if MEDIA_TUNER_CUSTOMIZE
+ depends on VIDEO_MEDIA && I2C
+ depends on MEDIA_TUNER_TDA827X && MEDIA_TUNER_TDA18271
+ default y
+ help
+ Say Y here to include support for Philips TDA8290+8275(a) tuner.
+
config MEDIA_TUNER_TDA9887
- tristate "TDA 9885/6/7 analog IF demodulator"
+ tristate "TDA 9885/6/7 analog IF demodulator" if MEDIA_TUNER_CUSTOMIZE
depends on VIDEO_MEDIA && I2C
- default m if MEDIA_TUNER_CUSTOMIZE
+ default y
help
Say Y here to include support for Philips TDA9885/6/7
analog IF demodulator.

config MEDIA_TUNER_TEA5761
- tristate "TEA 5761 radio tuner (EXPERIMENTAL)"
+ tristate "TEA 5761 radio tuner (EXPERIMENTAL)" if MEDIA_TUNER_CUSTOMIZE
depends on VIDEO_MEDIA && I2C
depends on EXPERIMENTAL
- default m if MEDIA_TUNER_CUSTOMIZE
+ default y
help
Say Y here to include support for the Philips TEA5761 radio tuner.

config MEDIA_TUNER_TEA5767
- tristate "TEA 5767 radio tuner"
+ tristate "TEA 5767 radio tuner" if MEDIA_TUNER_CUSTOMIZE
depends on VIDEO_MEDIA && I2C
- default m if MEDIA_TUNER_CUSTOMIZE
+ default y
help
Say Y here to include support for the Philips TEA5767 radio tuner.

config MEDIA_TUNER_MT20XX
- tristate "Microtune 2032 / 2050 tuners"
+ tristate "Microtune 2032 / 2050 tuners" if MEDIA_TUNER_CUSTOMIZE
depends on VIDEO_MEDIA && I2C
- default m if MEDIA_TUNER_CUSTOMIZE
+ default y
help
Say Y here to include support for the MT2032 / MT2050 tuner.

config MEDIA_TUNER_MT2060
- tristate "Microtune MT2060 silicon IF tuner"
+ tristate "Microtune MT2060 silicon IF tuner" if MEDIA_TUNER_CUSTOMIZE && DVB_FE_CUSTOMISE
depends on VIDEO_MEDIA && I2C
- default m if DVB_FE_CUSTOMISE
+ default DVB_CAPTURE_DRIVERS
help
A driver for the silicon IF tuner MT2060 from Microtune.

config MEDIA_TUNER_MT2266
- tristate "Microtune MT2266 silicon tuner"
+ tristate "Microtune MT2266 silicon tuner" if MEDIA_TUNER_CUSTOMIZE && DVB_FE_CUSTOMISE
depends on VIDEO_MEDIA && I2C
- default m if DVB_FE_CUSTOMISE
+ default DVB_CAPTURE_DRIVERS
help
A driver for the silicon baseband tuner MT2266 from Microtune.

config MEDIA_TUNER_MT2131
- tristate "Microtune MT2131 silicon tuner"
+ tristate "Microtune MT2131 silicon tuner" if MEDIA_TUNER_CUSTOMIZE && DVB_FE_CUSTOMISE
depends on VIDEO_MEDIA && I2C
- default m if DVB_FE_CUSTOMISE
+ default DVB_CAPTURE_DRIVERS
help
A driver for the silicon baseband tuner MT2131 from Microtune.

config MEDIA_TUNER_QT1010
- tristate "Quantek QT1010 silicon tuner"
+ tristate "Quantek QT1010 silicon tuner" if MEDIA_TUNER_CUSTOMIZE && DVB_FE_CUSTOMISE
depends on VIDEO_MEDIA && I2C
- default m if DVB_FE_CUSTOMISE
+ default DVB_CAPTURE_DRIVERS
help
A driver for the silicon tuner QT1010 from Quantek.

config MEDIA_TUNER_XC2028
- tristate "XCeive xc2028/xc3028 tuners"
+ tristate "XCeive xc2028/xc3028 tuners" if MEDIA_TUNER_CUSTOMIZE
depends on VIDEO_MEDIA && I2C
depends on HOTPLUG
select FW_LOADER
- default m if MEDIA_TUNER_CUSTOMIZE
+ default y
help
Say Y here to include support for the xc2028/xc3028 tuners.

config MEDIA_TUNER_XC5000
- tristate "Xceive XC5000 silicon tuner"
+ tristate "Xceive XC5000 silicon tuner" if MEDIA_TUNER_CUSTOMIZE
depends on VIDEO_MEDIA && I2C
depends on HOTPLUG
select FW_LOADER
- default m if DVB_FE_CUSTOMISE
+ default y
help
A driver for the silicon tuner XC5000 from Xceive.
This device is only used inside a SiP called togther with a
demodulator for now.

config MEDIA_TUNER_MXL5005S
- tristate "MaxLinear MSL5005S silicon tuner"
+ tristate "MaxLinear MSL5005S silicon tuner" if MEDIA_TUNER_CUSTOMIZE && DVB_FE_CUSTOMISE
depends on VIDEO_MEDIA && I2C
- default m if DVB_FE_CUSTOMISE
+ default DVB_CAPTURE_DRIVERS
help
A driver for the silicon tuner MXL5005S from MaxLinear.

-endif # MEDIA_TUNER_CUSTOMIZE
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