linux/drivers/clk/mxs/clk.c
Fabio Estevam 30ee400614 clk: mxs: Fix sparse warnings
Fix the following sparse warnings:

drivers/clk/mxs/clk.c:17:1: warning: symbol 'mxs_lock' was not declared. Should it be static?
drivers/clk/mxs/clk.c:19:5: warning: symbol 'mxs_clk_wait' was not declared. Should it be static?

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
2013-03-19 12:58:41 -07:00

30 lines
712 B
C

/*
* Copyright 2012 Freescale Semiconductor, Inc.
*
* The code contained herein is licensed under the GNU General Public
* License. You may obtain a copy of the GNU General Public License
* Version 2 or later at the following locations:
*
* http://www.opensource.org/licenses/gpl-license.html
* http://www.gnu.org/copyleft/gpl.html
*/
#include <linux/err.h>
#include <linux/io.h>
#include <linux/jiffies.h>
#include <linux/spinlock.h>
#include "clk.h"
DEFINE_SPINLOCK(mxs_lock);
int mxs_clk_wait(void __iomem *reg, u8 shift)
{
unsigned long timeout = jiffies + msecs_to_jiffies(10);
while (readl_relaxed(reg) & (1 << shift))
if (time_after(jiffies, timeout))
return -ETIMEDOUT;
return 0;
}