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Date: Thu, 22 Mar 2012 16:34:59 +0800 From: Shawn Guo <shawn.guo@...aro.org> To: Lothar Waßmann <LW@...O-electronics.de> Cc: Sascha Hauer <kernel@...gutronix.de>, Russell King <linux@....linux.org.uk>, linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org Subject: Re: [PATCH] ARM: mxs: enforce semantics of clk_prepare()/clk_unprepare() and clk_enable()/clk_disable() On Thu, Mar 22, 2012 at 09:18:17AM +0100, Lothar Waßmann wrote: > After introducing clk_prepare()/clk_unprepare() there may still be > drivers out there that don't use the new functions. > This patch warns about drivers calling clk_enable() without a > preceding clk_prepare() and various other invalid sequences of calls > to clk_enable()/clk_disable() and clk_prepare()/clk_unprepare(). > I plan to migrate the mxs clock driver to common clk framework in the next merge window. Thus, I do not see much point to take this patch. > To not make a system unusable due to excessive warning messages the > warnings are limited to 1 per clk by a flag in the 'flags' member of > struct clk. > > > Signed-off-by: Lothar Waßmann <LW@...O-electronics.de> > --- > arch/arm/mach-mxs/clock.c | 98 ++++++++++++++++++++++++++++---- > arch/arm/mach-mxs/include/mach/clock.h | 6 ++ > 2 files changed, 93 insertions(+), 11 deletions(-) -- Regards, Shawn -- 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/
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