linux-kernel - Re: [PATCH, RFC 02/22] cpufreq: ARM_DT_BL_CPUFREQ needs ARM_CPU

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Date:	Sat, 4 May 2013 12:09:40 +0530
From:	Viresh Kumar <viresh.kumar@...aro.org>
To:	"Rafael J. Wysocki" <rjw@...k.pl>, Arnd Bergmann <arnd@...db.de>
Cc:	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	cpufreq@...r.kernel.org, linux-pm@...r.kernel.org
Subject: Re: [PATCH, RFC 02/22] cpufreq: ARM_DT_BL_CPUFREQ needs ARM_CPU_TOPOLOGY

On 2 May 2013 20:46, Arnd Bergmann <arnd@...db.de> wrote:
> The big.LITTLE cpufreq driver uses the CPU topology API, which
> needs to be reflected in Kconfig to prevent broken configurations.
>
> warning: (ARM_DT_BL_CPUFREQ) selects ARM_BIG_LITTLE_CPUFREQ which
> has unmet direct dependencies (ARCH_HAS_CPUFREQ && CPU_FREQ && ARM && ARM_CPU_TOPOLOGY)
>
> Cc: Rafael J. Wysocki <rjw@...k.pl>
> Cc: Viresh Kumar <viresh.kumar@...aro.org>
> Cc: cpufreq@...r.kernel.org
> Cc: linux-pm@...r.kernel.org
> Signed-off-by: Arnd Bergmann <arnd@...db.de>
> ---
>  drivers/cpufreq/Kconfig.arm | 1 +
>  1 file changed, 1 insertion(+)

With all the discussions we had, please see if you can replace your
patch with this one (Attached too for applying, copy/paste in gmail
will break it):

From: Viresh Kumar <viresh.kumar@...aro.org>
Date: Sat, 4 May 2013 12:03:54 +0530
Subject: [PATCH] cpufreq: ARM big LITTLE: Fix Kconfig entries

This fixes usage of "depends on" and "select" options in Kconfig for ARM big
LITTLE cpufreq driver. Otherwise we get these warnings:

warning: (ARM_DT_BL_CPUFREQ) selects ARM_BIG_LITTLE_CPUFREQ which
has unmet direct dependencies (ARCH_HAS_CPUFREQ && CPU_FREQ && ARM &&
ARM_CPU_TOPOLOGY)

Signed-off-by: Arnd Bergmann <arnd@...db.de>
Signed-off-by: Viresh Kumar <viresh.kumar@...aro.org>
---
 drivers/cpufreq/Kconfig.arm | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/cpufreq/Kconfig.arm b/drivers/cpufreq/Kconfig.arm
index 634e992..a924408 100644
--- a/drivers/cpufreq/Kconfig.arm
+++ b/drivers/cpufreq/Kconfig.arm
@@ -3,17 +3,17 @@
 #

 config ARM_BIG_LITTLE_CPUFREQ
-	tristate
-	depends on ARM_CPU_TOPOLOGY
-	select PM_OPP
+	tristate "Generic ARM big LITTLE CPUfreq driver"
+	depends on ARM_CPU_TOPOLOGY && PM_OPP && HAVE_CLK
+	help
+	  This enables the Generic CPUfreq driver for ARM big.LITTLE platforms.

 config ARM_DT_BL_CPUFREQ
-	tristate "Generic ARM big LITTLE CPUfreq driver probed via DT"
-	select ARM_BIG_LITTLE_CPUFREQ
-	depends on OF && HAVE_CLK
+	tristate "Generic probing via DT for ARM big LITTLE CPUfreq driver"
+	depends on ARM_BIG_LITTLE_CPUFREQ && OF
 	help
-	  This enables the Generic CPUfreq driver for ARM big.LITTLE platform.
-	  This gets frequency tables from DT.
+	  This enables probing via DT for Generic CPUfreq driver for ARM
+	  big.LITTLE platform. This gets frequency tables from DT.

 config ARM_EXYNOS_CPUFREQ
 	bool "SAMSUNG EXYNOS SoCs"

Download attachment "0001-cpufreq-ARM-big-LITTLE-Fix-Kconfig-entries.patch" of type "application/octet-stream" (1866 bytes)