From: Jeffy Chen <jeffy.chen@rock-chips.com>
Date: Wed, 9 Dec 2015 09:04:10 +0000 (+0800)
Subject: clk: rockchip: allow more than 2 parents for cpuclk
X-Git-Tag: firefly_0821_release~3488
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=b260018adbcaa02fe30d34912300de251a1cbd05;p=firefly-linux-kernel-4.4.55.git

clk: rockchip: allow more than 2 parents for cpuclk

RK3228's armclk has 3 parents, so allow cpuclk to have
more than 2 parents.

Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
(cherry picked from linux-next.git
commit ea03835fb8ea4abbad2a2154187401f55c0b932d)

Change-Id: Iddb60e4f7bda91b98b4a3e42f196eee510173dce
Signed-off-by: Xing Zheng <zhengxing@rock-chips.com>
---

diff --git a/drivers/clk/rockchip/clk-cpu.c b/drivers/clk/rockchip/clk-cpu.c
index 330870a6d8bf..d07374f48caf 100644
--- a/drivers/clk/rockchip/clk-cpu.c
+++ b/drivers/clk/rockchip/clk-cpu.c
@@ -242,8 +242,8 @@ struct clk *rockchip_clk_register_cpuclk(const char *name,
 	struct clk *clk, *cclk;
 	int ret;
 
-	if (num_parents != 2) {
-		pr_err("%s: needs two parent clocks\n", __func__);
+	if (num_parents < 2) {
+		pr_err("%s: needs at least two parent clocks\n", __func__);
 		return ERR_PTR(-EINVAL);
 	}