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authorAnson Huang <b20788@freescale.com>2013-12-24 14:21:27 -0500
committerShawn Guo <shawn.guo@linaro.org>2013-12-31 09:36:46 +0800
commitb4e844f019aa6b46601ef3d04af645b36dffaa0d (patch)
tree7361c69dbfb1f8cd1d87cb6b168013c1eb9edb10 /arch/arm/mach-imx
parentadf15fa59695f383067e70d151b131fdeafcb489 (diff)
ARM: imx: improve status check of clock gate
For ccm clock gate, both 2b'11 and 2b'01 should be treated as clock enabled, see below description in CCM, whenver CPU trys to check clock gate's status, system will be in run mode. 2b'00: clock is off during all modes; 2b'01: clock is on in run mode, but off in wait and stop mode; 2b'10: Not applicable; 2b'11: clock is on during all modes, except stop mode. Signed-off-by: Anson Huang <b20788@freescale.com> Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Diffstat (limited to 'arch/arm/mach-imx')
-rw-r--r--arch/arm/mach-imx/clk-gate2.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm/mach-imx/clk-gate2.c b/arch/arm/mach-imx/clk-gate2.c
index a63e415609a..a2ecc006b32 100644
--- a/arch/arm/mach-imx/clk-gate2.c
+++ b/arch/arm/mach-imx/clk-gate2.c
@@ -72,7 +72,7 @@ static int clk_gate2_is_enabled(struct clk_hw *hw)
reg = readl(gate->reg);
- if (((reg >> gate->bit_idx) & 3) == 3)
+ if (((reg >> gate->bit_idx) & 1) == 1)
return 1;
return 0;