Commit b4e844f0 authored Dec 24, 2013 by Anson Huang Committed by Shawn Guo Dec 31, 2013

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>

parent adf15fa5

arch/arm/mach-imx/clk-gate2.c

+1 −1

Original line number	Original line	Diff line number	Diff line
	@@ -72,7 +72,7 @@ static int clk_gate2_is_enabled(struct clk_hw *hw)

	reg = readl(gate->reg);		reg = readl(gate->reg);

	if (((reg >> gate->bit_idx) & 3) == 3)		if (((reg >> gate->bit_idx) & 1) == 1)
	return 1;		return 1;

	return 0;		return 0;

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