From: Paul Walmsley <paul@pwsan.com>
Date: Fri, 17 Oct 2008 22:18:42 +0000 (-0600)
Subject: OMAP3 clock: fix non-CORE DPLL rate assignment bugs
X-Git-Tag: v2.6.27-omap1~8
X-Git-Url: http://git.kernel.org/?p=linux%2Fkernel%2Fgit%2Ftmlind%2Flinux-omap-2.6.git;a=commitdiff_plain;h=2ac1da8c787f73f067e717408e631501ba60aabc

OMAP3 clock: fix non-CORE DPLL rate assignment bugs

Commit 8b1f0bd44fe490ec631230c8c040753a2bda8caa introduced a bug that
caused non-CORE DPLL rates to be incorrectly set on boot in
omap3_noncore_dpll_enable().  Debugged by Tomi Valkeinen
<tomi.valkeinen@nokia.com> - thanks Tomi.

Also fix omap3_noncore_dpll_set_rate() to assign clk->rate after a
DPLL reprogram.

Tested on 3430SDP.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Cc: Tomi Valkeinen <tomi.valkeinen@nokia.com>
Cc: Rick Bronson <rick@efn.org>
Cc: Timo Kokkonen <timo.t.kokkonen@nokia.com>
Cc: Sakari Poussa <sakari.poussa@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---

diff --git a/arch/arm/mach-omap2/clock34xx.c b/arch/arm/mach-omap2/clock34xx.c
index df258f7..cc43f4f 100644
--- a/arch/arm/mach-omap2/clock34xx.c
+++ b/arch/arm/mach-omap2/clock34xx.c
@@ -271,7 +271,6 @@ static int _omap3_noncore_dpll_stop(struct clk *clk)
 static int omap3_noncore_dpll_enable(struct clk *clk)
 {
 	int r;
-	long rate;
 	struct dpll_data *dd;
 
 	if (clk == &dpll3_ck)
@@ -287,7 +286,7 @@ static int omap3_noncore_dpll_enable(struct clk *clk)
 		r = _omap3_noncore_dpll_lock(clk);
 
 	if (!r)
-		clk->rate = rate;
+		clk->rate = omap2_get_dpll_rate(clk);
 
 	return r;
 }
@@ -430,6 +429,9 @@ static int omap3_noncore_dpll_set_rate(struct clk *clk, unsigned long rate)
 		ret = omap3_noncore_dpll_program(clk, dd->last_rounded_m,
 						 dd->last_rounded_n, freqsel);
 
+		if (!ret)
+			clk->rate = rate;
+
 	}
 
 	omap3_dpll_recalc(clk);