From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stefano Babic Date: Fri, 17 Aug 2012 21:55:20 +0200 Subject: [U-Boot] [PATCH] mx5/6 timer: Round up tick_to_time() value In-Reply-To: <1237768720.2403509.1344956481504.JavaMail.root@advansee.com> References: <1237768720.2403509.1344956481504.JavaMail.root@advansee.com> Message-ID: <502EA1A8.7050807@denx.de> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de On 14/08/2012 17:01, Beno?t Th?baudeau wrote: > Round up tick_to_time() value instead of truncating it. This avoids stopping > waits instantly for low usec values, and this generally guarantees that the code > always waits for at least the requested duration. > > Signed-off-by: Beno?t Th?baudeau > Cc: Stefano Babic > --- > .../arch/arm/cpu/armv7/imx-common/timer.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git u-boot-4d3c95f.orig/arch/arm/cpu/armv7/imx-common/timer.c u-boot-4d3c95f/arch/arm/cpu/armv7/imx-common/timer.c > index 1645ff8..e2725e1 100644 > --- u-boot-4d3c95f.orig/arch/arm/cpu/armv7/imx-common/timer.c > +++ u-boot-4d3c95f/arch/arm/cpu/armv7/imx-common/timer.c > @@ -61,7 +61,7 @@ static inline unsigned long long tick_to_time(unsigned long long tick) > > static inline unsigned long long us_to_tick(unsigned long long usec) > { > - usec *= CLK_32KHZ; > + usec = usec * CLK_32KHZ + 999999; > do_div(usec, 1000000); > > return usec; > Acked-by: Stefano Babic Best regards, Stefano Babic -- ===================================================================== DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: +49-8142-66989-53 Fax: +49-8142-66989-80 Email: sbabic at denx.de =====================================================================