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pwm: Conflict with legacy PWM API

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In order to avoid duplicate symbols with legacy PWM API implementations,
the new PWM framework needs to conflict with any of the existing legacy
implementations. This is done in two ways: for implementations provided
by drivers, a conflict is added to the driver to ensure it will have to
be ported to the PWM subsystem before it can coexist with other PWM
providers. For architecture-specific code, the conflict is added to the
PWM symbol to avoid confusion when a previously picked platform or
machine can no longer be selected because of the PWM subsystem being
included.

Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
This commit is contained in:
Thierry Reding 2012-07-02 21:29:45 +02:00
parent 1112fe88d4
commit eac7a92fd0
3 changed files with 3 additions and 0 deletions
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1
drivers/mfd/Kconfig
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@ -276,6 +276,7 @@ config TWL6030_PWM
tristate "TWL6030 PWM (Pulse Width Modulator) Support"
depends on TWL4030_CORE
select HAVE_PWM
depends on !PWM
default n
help
Say yes here if you want support for TWL6030 PWM.

1
drivers/misc/Kconfig
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@ -64,6 +64,7 @@ config AB8500_PWM
bool "AB8500 PWM support"
depends on AB8500_CORE && ARCH_U8500
select HAVE_PWM
depends on !PWM
help
This driver exports functions to enable/disble/config/free Pulse
Width Modulation in the Analog Baseband Chip AB8500.

1
drivers/pwm/Kconfig
View File

@ -1,5 +1,6 @@
menuconfig PWM
bool "PWM Support"
depends on !MACH_JZ4740 && !PUV3_PWM
help
This enables PWM support through the generic PWM framework.
You only need to enable this, if you also want to enable