From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stefano Babic Date: Thu, 28 Apr 2016 16:29:43 +0200 Subject: [U-Boot] [PATCH] video: ipu_common: fix build error In-Reply-To: References: <1461809273-4603-1-git-send-email-van.freenix@gmail.com> Message-ID: <57221E57.80307@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 28/04/2016 16:20, Peter Robinson wrote: > On Thu, Apr 28, 2016 at 3:07 AM, Peng Fan wrote: >> Some toolchains fail to build >> "clk->rate = (u64)(clk->parent->rate * 16) / div;" >> And the cast usage is wrong. >> >> Use the following code to fix the issue, >> " >> do_div(parent_rate, div); >> clk->rate = parent_rate; >> " >> >> Reported-by: Peter Robinson >> Signed-off-by: Peng Fan >> Cc: Stefano Babic >> Cc: Fabio Estevam >> Cc: Tom Rini >> Cc: Anatolij Gustschin >> Cc: Peter Robinson > Tested-by: Peter Robinson > >> --- >> >> Hi Peter, >> >> Please help test this patch to see whether this fix your issue or not. >> Thanks for pointing out this issue. > > It fixes the build issue, I'll be installing it onto a number of > devices over the next couple of days. > > Thanks, > Peter > >> Thanks, >> Peng. >> >> drivers/video/ipu_common.c | 4 +++- >> 1 file changed, 3 insertions(+), 1 deletion(-) >> >> diff --git a/drivers/video/ipu_common.c b/drivers/video/ipu_common.c >> index 36d4b23..5676a0f 100644 >> --- a/drivers/video/ipu_common.c >> +++ b/drivers/video/ipu_common.c >> @@ -352,7 +352,9 @@ static int ipu_pixel_clk_set_rate(struct clk *clk, unsigned long rate) >> */ >> __raw_writel((div / 16) << 16, DI_BS_CLKGEN1(clk->id)); >> >> - clk->rate = (u64)(clk->parent->rate * 16) / div; >> + do_div(parent_rate, div); >> + >> + clk->rate = parent_rate; >> >> return 0; >> } >> -- >> 2.6.2 >> Applied to u-boot-imx, thanks ! Best regards, Stefano Babic -- ===================================================================== DENX Software Engineering GmbH, Managing Director: Wolfgang Denk 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 =====================================================================