Since the required clock to access registers is gated off in low power mode, add ci->in_lpm check before try to dump registers value. Signed-off-by: Li Jun <jun.li@xxxxxxxxxxxxx> --- drivers/usb/chipidea/debug.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/chipidea/debug.c b/drivers/usb/chipidea/debug.c index 268e423..905e4da 100644 --- a/drivers/usb/chipidea/debug.c +++ b/drivers/usb/chipidea/debug.c @@ -336,7 +336,7 @@ static int ci_registers_show(struct seq_file *s, void *unused) struct ci_hdrc *ci = s->private; u32 tmp_reg; - if (!ci) + if (!ci || ci->in_lpm) return 0; /* ------ Registers ----- */ -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
