linux-kernel - Re: [PATCH v2 4/4] at91/avr32/atmel_lcdfb: prepare clk before calling enable

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Date:	Wed, 3 Jul 2013 13:10:16 +0200
From:	Jean-Christophe PLAGNIOL-VILLARD <plagnioj@...osoft.com>
To:	Nicolas Ferre <nicolas.ferre@...el.com>
Cc:	Boris BREZILLON <b.brezillon@...rkiz.com>,
	Ludovic Desroches <ludovic.desroches@...el.com>,
	Florian Tobias Schandinat <FlorianSchandinat@....de>,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	linux-fbdev@...r.kernel.org
Subject: Re: [PATCH v2 4/4] at91/avr32/atmel_lcdfb: prepare clk before
 calling enable

On 10:16 Tue 25 Jun     , Nicolas Ferre wrote:
> On 25/06/2013 10:14, Boris BREZILLON :
> >Replace clk_enable/disable with clk_prepare_enable/disable_unprepare to
> >avoid common clk framework warnings.
> >
> >Signed-off-by: Boris BREZILLON <b.brezillon@...rkiz.com>
> 
> Acked-by: Nicolas Ferre <nicolas.ferre@...el.com>
> 
> Jean-Christophe, can you take this one?

Yes I'll

Best Regards,
J.
> 
> Thanks, best regards,
> 
> >---
> >  drivers/video/atmel_lcdfb.c |    8 ++++----
> >  1 file changed, 4 insertions(+), 4 deletions(-)
> >
> >diff --git a/drivers/video/atmel_lcdfb.c b/drivers/video/atmel_lcdfb.c
> >index 540909d..8525457 100644
> >--- a/drivers/video/atmel_lcdfb.c
> >+++ b/drivers/video/atmel_lcdfb.c
> >@@ -893,14 +893,14 @@ static int __init atmel_lcdfb_init_fbinfo(struct atmel_lcdfb_info *sinfo)
> >
> >  static void atmel_lcdfb_start_clock(struct atmel_lcdfb_info *sinfo)
> >  {
> >-	clk_enable(sinfo->bus_clk);
> >-	clk_enable(sinfo->lcdc_clk);
> >+	clk_prepare_enable(sinfo->bus_clk);
> >+	clk_prepare_enable(sinfo->lcdc_clk);
> >  }
> >
> >  static void atmel_lcdfb_stop_clock(struct atmel_lcdfb_info *sinfo)
> >  {
> >-	clk_disable(sinfo->bus_clk);
> >-	clk_disable(sinfo->lcdc_clk);
> >+	clk_disable_unprepare(sinfo->bus_clk);
> >+	clk_disable_unprepare(sinfo->lcdc_clk);
> >  }
> >
> >
> >
> 
> 
> -- 
> Nicolas Ferre
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