linux-kernel - [PATCH 0/7] Remove HAVE

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Message-id: <003901cf25fc$73002790$590076b0$%han@samsung.com>
Date:	Mon, 10 Feb 2014 10:07:20 +0900
From:	Jingoo Han <jg1.han@...sung.com>
To:	'Arnd Bergmann' <arnd@...db.de>,
	'Ralf Baechle' <ralf@...ux-mips.org>,
	'Dmitry Torokhov' <dmitry.torokhov@...il.com>,
	'Thierry Reding' <thierry.reding@...il.com>
Cc:	'Linus Walleij' <linus.walleij@...aro.org>,
	'Russell King - ARM Linux' <linux@....linux.org.uk>,
	'Eric Miao' <eric.y.miao@...il.com>,
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-mips@...ux-mips.org, linux-input@...r.kernel.org,
	linux-pwm@...r.kernel.org, 'Jingoo Han' <jg1.han@...sung.com>
Subject: [PATCH 0/7] Remove HAVE_PWM config option

The HAVE_PWM symbol is only for legacy platforms that provide
the PWM API without using the generic framework, while PWM symbol
is used for PWM drivers using the generic PWM framework.

I looked at all HAVE_PWMs in the latest mainline kernel 3.14-rc1.
Three platforms are still using HAVE_PWM as below:

1. ARM - PXA
  ./arch/arm/mach-pxa/Kconfig

2. ARM - NXP LPC32XX
  ./arch/arm/Kconfig
  config ARCH_LPC32XX
  	select HAVE_PWM

3. MIPS - Ingenic JZ4740 based machines
  ./arch/mips/Kconfig
  config MACH_JZ4740
  	select HAVE_PWM

However, the legacy PWM drivers for PXA, LPC32XX, and JZ474 were
already moved to the generic PWM framework.
  ./drivers/pwm/pwm-pxa.c
  ./drivers/pwm/pwm-lpc32xx.c
  ./drivers/pwm/pwm-jz4740.c

In conclusion, HAVE_PWM should be removed, because HAVE_PWM is
NOT required anymore.

Jingoo Han (7):
      ARM: pxa: don't select HAVE_PWM
      ARM: lpc32xx: don't select HAVE_PWM
      ARM: remove HAVE_PWM config option
      MIPS: jz4740: don't select HAVE_PWM
      Input: max8997_haptic: remove HAVE_PWM dependencies
      Input: pwm-beepe: remove HAVE_PWM dependencies
      pwm: don't use IS_ENABLED(CONFIG_HAVE_PWM)

 arch/arm/Kconfig           |    4 ----
 arch/arm/mach-pxa/Kconfig  |   15 ---------------
 arch/mips/Kconfig          |    1 -
 drivers/input/misc/Kconfig |    4 ++--
 include/linux/pwm.h        |    2 +-
 5 files changed, 3 insertions(+), 23 deletions(-)

I would like to merge these patches as below:

1. Through arm-soc tree
  [PATCH 1/7] ARM: pxa: don't select HAVE_PWM
  [PATCH 2/7] ARM: lpc32xx: don't select HAVE_PWM
  [PATCH 3/7] ARM: remove HAVE_PWM config option

2. Through MIPS tree
  [PATCH 4/7] MIPS: jz4740: don't select HAVE_PWM

3. Through Input tree
  [PATCH 5/7] Input: max8997_haptic: remove HAVE_PWM dependencies
  [PATCH 6/7] Input: pwm-beepe: remove HAVE_PWM dependencies

4. Through PWM tree
  [PATCH 7/7] pwm: don't use IS_ENABLED(CONFIG_HAVE_PWM)

After merging these patches, all HAVE_PWM will be removed from
the mainline kernel. Thank you. :-)

Best regards,
Jingoo Han

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