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From: dwalker@codeaurora.org (Daniel Walker)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 4/4] msm: add handling for clocks tagged as CLK_MINMAX
Date: Thu,  2 Dec 2010 16:39:45 -0800	[thread overview]
Message-ID: <1291336785-29108-4-git-send-email-dwalker@codeaurora.org> (raw)
In-Reply-To: <1291336785-29108-1-git-send-email-dwalker@codeaurora.org>

CLK_MINMAX is used to denote clocks that have a wide variation
in possible frequencies. This handling just sets the min and
max values to the same value.

This code was original created by Saravana Kannan.

Cc: Saravana Kannan <skannan@codeaurora.org>
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>
---
 arch/arm/mach-msm/clock.c |   15 +++++++++++++++
 1 files changed, 15 insertions(+), 0 deletions(-)

diff --git a/arch/arm/mach-msm/clock.c b/arch/arm/mach-msm/clock.c
index c57210f..2069bfa 100644
--- a/arch/arm/mach-msm/clock.c
+++ b/arch/arm/mach-msm/clock.c
@@ -120,6 +120,21 @@ EXPORT_SYMBOL(clk_get_rate);
 
 int clk_set_rate(struct clk *clk, unsigned long rate)
 {
+	int ret;
+	if (clk->flags & CLKFLAG_MAX) {
+		ret = clk->ops->set_max_rate(clk->id, rate);
+		if (ret)
+			return ret;
+	}
+	if (clk->flags & CLKFLAG_MIN) {
+		ret = clk->ops->set_min_rate(clk->id, rate);
+		if (ret)
+			return ret;
+	}
+
+	if (clk->flags & CLKFLAG_MAX || clk->flags & CLKFLAG_MIN)
+		return ret;
+
 	return clk->ops->set_rate(clk->id, rate);
 }
 EXPORT_SYMBOL(clk_set_rate);
-- 
1.7.1

-- 
Sent by a consultant of the Qualcomm Innovation Center, Inc.
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum.

      parent reply	other threads:[~2010-12-03  0:39 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-12-03  0:39 [PATCH 1/4] msm: trout: add gpio_to_irq Daniel Walker
2010-12-03  0:39 ` [PATCH 2/4] msm: add CLK_MINMAX to pmdh_clk Daniel Walker
2010-12-03  0:39 ` [PATCH 3/4] msm: trout: change name of pmdh_clk to mddi_clk Daniel Walker
2010-12-03  0:39 ` Daniel Walker [this message]

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