Commit aeb2c121 authored Dec 06, 2013 by Chris Ruehl Committed by Greg Kroah-Hartman Dec 08, 2013

usb: chipidea: Reallocate regmap only if lpm is detected



The regmap only needs to reallocate if the hw_read on the CAP register shows
lpm is used. Therefore the if() statement check the change.

Signed-off-by: Chris Ruehl <chris.ruehl@gtsys.com.hk>
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent 9058bdc3

drivers/usb/chipidea/core.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -208,6 +208,7 @@ static int hw_device_init(struct ci_hdrc ci, void __iomem base)
		reg = hw_read(ci, CAP_HCCPARAMS, HCCPARAMS_LEN) >>
		__ffs(HCCPARAMS_LEN);
		ci->hw_bank.lpm = reg;
		if (reg)
		hw_alloc_regmap(ci, !!reg);
		ci->hw_bank.size = ci->hw_bank.op - ci->hw_bank.abs;
		ci->hw_bank.size += OP_LAST;