linux-kernel - [PATCH] ARM: OMAP AM35x: clockdomain data: fix resolving dependency problem

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Date:	Mon, 2 Jul 2012 05:54:57 +0000
From:	"Kim, Milo" <Milo.Kim@...com>
To:	"tony@...mide.com" <tony@...mide.com>
CC:	"linux-omap@...r.kernel.org" <linux-omap@...r.kernel.org>,
	"mgreer@...malcreek.com" <mgreer@...malcreek.com>,
	"paul@...an.com" <paul@...an.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: [PATCH] ARM: OMAP AM35x: clockdomain data: fix resolving dependency
 problem

In am35x board , iva2 clock domain doesn't be used.
So mpu_am35x_clkdm should be used rather than mpu_3xxx_clkdm.
OMAP3430 : mpu_3xxx_clkdm (with iva2 clkdm)
AM35x    : mpu_am35x_clkdm (without iva2 clkdm)

For the compatibility with omap3430, this patch has no conflict because mpu_3xxx_clkdm was already defined in clock domains for omap3430.
So this can be removed from common clock domain.

Below error can be fixed with this patch.

[    0.000000] AM3517 ES1.1 (l2cache sgx neon )
[    0.000000] ------------[ cut here ]------------
[    0.000000] WARNING: at arch/arm/mach-omap2/clockdomain.c:237 _resolve_clkdm_deps+0x68/0x108()
[    0.000000] clockdomain: mpu_clkdm: could not find clkdm iva2_clkdm while resolving dependencies - should never happen
[    0.000000] Modules linked in:
[    0.000000] [<c001bd3c>] (unwind_backtrace+0x0/0xf4) from [<c0040c2c>] (warn_slowpath_common+0x4c/0x64)
[    0.000000] [<c0040c2c>] (warn_slowpath_common+0x4c/0x64) from [<c0040cd8>] (warn_slowpath_fmt+0x30/0x40)
[    0.000000] [<c0040cd8>] (warn_slowpath_fmt+0x30/0x40) from [<c003256c>] (_resolve_clkdm_deps+0x68/0x108)
[    0.000000] [<c003256c>] (_resolve_clkdm_deps+0x68/0x108) from [<c0032640>] (clkdm_complete_init+0x34/0x90)
[    0.000000] [<c0032640>] (clkdm_complete_init+0x34/0x90) from [<c06d7600>] (omap3_init_early+0x20/0x30)
[    0.000000] [<c06d7600>] (omap3_init_early+0x20/0x30) from [<c06d3230>] (setup_arch+0x834/0x94c)
[    0.000000] [<c06d3230>] (setup_arch+0x834/0x94c) from [<c06cf6b0>] (start_kernel+0x88/0x2fc)
[    0.000000] [<c06cf6b0>] (start_kernel+0x88/0x2fc) from [<80008044>] (0x80008044)

Signed-off-by: Milo(Woogyom) Kim <milo.kim@...com>
---
 arch/arm/mach-omap2/clockdomains3xxx_data.c |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)

diff --git a/arch/arm/mach-omap2/clockdomains3xxx_data.c b/arch/arm/mach-omap2/clockdomains3xxx_data.c
index d625844..56089c4 100644
--- a/arch/arm/mach-omap2/clockdomains3xxx_data.c
+++ b/arch/arm/mach-omap2/clockdomains3xxx_data.c
@@ -454,7 +454,6 @@ static struct clkdm_autodep clkdm_am35x_autodeps[] = {
 
 static struct clockdomain *clockdomains_common[] __initdata = {
 	&wkup_common_clkdm,
-	&mpu_3xxx_clkdm,
 	&neon_clkdm,
 	&core_l3_3xxx_clkdm,
 	&core_l4_3xxx_clkdm,
-- 
1.7.2.5


Thanks & BR
Milo -


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