linux-kernel - [RESEND PATCH] ARM: SAMSUNG: Add s3c_setparent_clksrc in s3c_set

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <1323829221-14171-1-git-send-email-jhbird.choi@samsung.com>
Date:	Wed, 14 Dec 2011 11:20:21 +0900
From:	jhbird.choi@...sung.com
To:	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Cc:	Ben Dooks <ben-linux@...ff.org>,
	Kukjin Kim <kgene.kim@...sung.com>,
	Russell King <linux@....linux.org.uk>, jhbird.choi@...il.com,
	Jonghwan Choi <jhbird.choi@...sung.com>
Subject: [RESEND PATCH] ARM: SAMSUNG: Add s3c_setparent_clksrc in s3c_set_clksrc

From: Jonghwan Choi <jhbird.choi@...sung.com>

Currently we have to run clk_set_parent to change clock source.
But if there are sources & parent defined, it means we will select a parent
in multiple clock sources. So sources & parent are already defined,
set the parent clock int s3c_set_clksrc.
Then we can reduce many clk_set_parent function in driver or setup_clock function.

Signed-off-by: Jonghwan Choi <jhbird.choi@...sung.com>
---
 arch/arm/plat-samsung/clock-clksrc.c |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/arch/arm/plat-samsung/clock-clksrc.c b/arch/arm/plat-samsung/clock-clksrc.c
index ae8b850..61dfe0d 100644
--- a/arch/arm/plat-samsung/clock-clksrc.c
+++ b/arch/arm/plat-samsung/clock-clksrc.c
@@ -140,6 +140,14 @@ void __init_or_cpufreq s3c_set_clksrc(struct clksrc_clk *clk, bool announce)
 		return;
 	}
 
+	if (clk->sources && clk->clk.parent) {
+		if (s3c_setparent_clksrc(&clk->clk, clk->clk.parent)) {
+			printk(KERN_ERR "%s: bad source is %s\n",
+					clk->clk.name, clk->clk.parent->name);
+			return;
+		}
+	}
+
 	clksrc = __raw_readl(clk->reg_src.reg);
 	clksrc &= mask;
 	clksrc >>= clk->reg_src.shift;
-- 
1.7.1

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/