[<prev] [next>] [<thread-prev] [day] [month] [year] [list]
Message-Id: <1424347689-2636-2-git-send-email-martink@posteo.de>
Date: Thu, 19 Feb 2015 13:08:09 +0100
From: Martin Kepplinger <martink@...teo.de>
To: shawn.guo@...aro.org, kernel@...gutronix.de, linux@....linux.org.uk
Cc: linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
Martin Kepplinger <martin.kepplinger@...obroma-systems.com>,
Martin Kepplinger <martink@...teo.de>
Subject: [PATCH] arch: arm [mach-imx] use sign_extend32() for sign_extension
From: Martin Kepplinger <martin.kepplinger@...obroma-systems.com>
Signed-off-by: Martin Kepplinger <martink@...teo.de>
---
arch/arm/mach-imx/clk-pllv2.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/arch/arm/mach-imx/clk-pllv2.c b/arch/arm/mach-imx/clk-pllv2.c
index 20889d5..1bbd08c 100644
--- a/arch/arm/mach-imx/clk-pllv2.c
+++ b/arch/arm/mach-imx/clk-pllv2.c
@@ -5,6 +5,7 @@
#include <linux/delay.h>
#include <linux/slab.h>
#include <linux/err.h>
+#include <linux/bitops.h>
#include <asm/div64.h>
@@ -88,11 +89,10 @@ static unsigned long __clk_pllv2_recalc_rate(unsigned long parent_rate,
mfi = (mfi <= 5) ? 5 : mfi;
mfd = dp_mfd & MXC_PLL_DP_MFD_MASK;
mfn = mfn_abs = dp_mfn & MXC_PLL_DP_MFN_MASK;
- /* Sign extend to 32-bits */
- if (mfn >= 0x04000000) {
- mfn |= 0xFC000000;
+
+ mfn = sign_extend32(mfn, 26);
+ if (mfn < 0)
mfn_abs = -mfn;
- }
ref_clk = 2 * parent_rate;
if (dbl != 0)
--
2.1.4
--
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/
Powered by blists - more mailing lists