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| author | David S. Miller <davem@davemloft.net> | 2011-08-20 10:39:12 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-08-20 10:39:12 -0700 |
| commit | 823dcd2506fa369aeb8cbd26da5663efe2fda9a9 (patch) | |
| tree | 853b3e3c05f0b9ee1b5df8464db19b7acc57150c /arch/arm/mach-mx5/clock-mx51-mx53.c | |
| parent | eaa36660de7e174498618d69d7277d44a2f24c3d (diff) | |
| parent | 98e77438aed3cd3343cbb86825127b1d9d2bea33 (diff) | |
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net
Diffstat (limited to 'arch/arm/mach-mx5/clock-mx51-mx53.c')
| -rw-r--r-- | arch/arm/mach-mx5/clock-mx51-mx53.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/arch/arm/mach-mx5/clock-mx51-mx53.c b/arch/arm/mach-mx5/clock-mx51-mx53.c index 7f20308c4dbd..f7bf996f463b 100644 --- a/arch/arm/mach-mx5/clock-mx51-mx53.c +++ b/arch/arm/mach-mx5/clock-mx51-mx53.c @@ -271,7 +271,11 @@ static int _clk_pll_enable(struct clk *clk) int i = 0; pllbase = _get_pll_base(clk); - reg = __raw_readl(pllbase + MXC_PLL_DP_CTL) | MXC_PLL_DP_CTL_UPEN; + reg = __raw_readl(pllbase + MXC_PLL_DP_CTL); + if (reg & MXC_PLL_DP_CTL_UPEN) + return 0; + + reg |= MXC_PLL_DP_CTL_UPEN; __raw_writel(reg, pllbase + MXC_PLL_DP_CTL); /* Wait for lock */ |