From: Russell King - ARM Linux <linux@arm.linux.org.uk>
To: Paul Walmsley <paul@pwsan.com>
Cc: linux-arm-kernel@lists.arm.linux.org.uk,
linux-kernel@vger.kernel.org, linux-omap@vger.kernel.org,
Tomi Valkeinen <tomi.valkeinen@nokia.com>,
Rick Bronson <rick@efn.org>,
Timo Kokkonen <timo.t.kokkonen@nokia.com>,
Sakari Poussa <sakari.poussa@nokia.com>,
Tony Lindgren <tony@atomide.com>
Subject: Re: [PATCH C 09/13] OMAP3 clock: fix non-CORE DPLL rate assignment bugs
Date: Thu, 29 Jan 2009 10:38:08 +0000 [thread overview]
Message-ID: <20090129103808.GD12627@n2100.arm.linux.org.uk> (raw)
In-Reply-To: <20090128190832.12092.37861.stgit@localhost.localdomain>
On Wed, Jan 28, 2009 at 12:08:35PM -0700, Paul Walmsley wrote:
> diff --git a/arch/arm/mach-omap2/clock34xx.c b/arch/arm/mach-omap2/clock34xx.c
> index 424eed6..c943043 100644
> --- a/arch/arm/mach-omap2/clock34xx.c
> +++ b/arch/arm/mach-omap2/clock34xx.c
> @@ -270,7 +270,6 @@ 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)
> @@ -286,7 +285,7 @@ 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);
This whole patch can be viewed as another bug fix to patch 6.
> @@ -429,6 +428,9 @@ 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;
> +
So this is creating:
if (...) {
ret = something;
if (!ret)
clk->rate = rate;
} else {
ret = something else;
if (!ret)
clk->rate = rate;
}
So why not make it easier to read and more obvious:
if (...) {
ret = something;
} else {
ret = something else;
}
if (!ret)
clk->rate = rate;
> }
>
> omap3_dpll_recalc(clk);
>
>
>
> -------------------------------------------------------------------
> List admin: http://lists.arm.linux.org.uk/mailman/listinfo/linux-arm-kernel
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next prev parent reply other threads:[~2009-01-29 10:38 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-01-28 19:08 [PATCH C 00/13] OMAP clock, C of F: DPLL updates Paul Walmsley
2009-01-28 19:08 ` [PATCH C 01/13] OMAP3 clock: fix DPLL jitter correction and rate programming Paul Walmsley
2009-01-28 19:08 ` [PATCH C 02/13] OMAP3 clock: DPLL{1,2}_FCLK clksel can divide by 4 Paul Walmsley
2009-01-28 19:08 ` [PATCH C 03/13] OMAP3 clock: convert dpll_data.idlest_bit to idlest_mask Paul Walmsley
2009-01-28 19:08 ` [PATCH C 04/13] OMAP3 clock: note the bypass source clock for DPLLs Paul Walmsley
2009-01-28 19:08 ` [PATCH C 05/13] OMAP2/3 clock: fix DPLL rate calculation Paul Walmsley
2009-01-29 10:27 ` Russell King
2009-01-28 19:08 ` [PATCH C 06/13] OMAP3 clock: DPLLs should enter bypass if new rate is sys_ck Paul Walmsley
2009-01-29 10:30 ` Russell King - ARM Linux
2009-01-29 12:39 ` Russell King - ARM Linux
2009-01-30 5:47 ` Paul Walmsley
2009-02-09 11:19 ` Russell King - ARM Linux
2009-01-28 19:08 ` [PATCH C 07/13] OMAP3 clock: recalculate DPLL subtree after bypass entry/exit Paul Walmsley
2009-01-29 10:33 ` Russell King - ARM Linux
2009-01-28 19:08 ` [PATCH C 08/13] OMAP3 clock: put DPLL into bypass if bypass rate = clk->rate, not hardware rate Paul Walmsley
2009-01-29 10:35 ` Russell King - ARM Linux
2009-01-28 19:08 ` [PATCH C 09/13] OMAP3 clock: fix non-CORE DPLL rate assignment bugs Paul Walmsley
2009-01-29 10:38 ` Russell King - ARM Linux [this message]
2009-01-28 19:08 ` [PATCH C 10/13] OMAP3 clock: remove unnecessary dpll_data dereferences Paul Walmsley
2009-01-28 19:08 ` [PATCH C 11/13] OMAP3 clock: optimize DPLL rate rounding algorithm Paul Walmsley
2009-01-28 19:08 ` [PATCH C 12/13] OMAP3 clock: avoid invalid FREQSEL values during DPLL rate rounding Paul Walmsley
2009-01-28 19:08 ` [PATCH C 13/13] OMAP3 clock: disable DPLL autoidle while waiting for DPLL to lock Paul Walmsley
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