clk: rockchip: add hclk_cpubus to the list of rk3188 critical clocks

[ Upstream commit e8b63288b37dbb8457b510c9d96f6006da4653f6 ]

hclk_cpubus needs to keep running because it is needed for devices like
the rom, i2s0 or spdif to be accessible via cpu. Without that all
accesses to devices (readl/writel) return wrong data. So add it
to the list of critical clocks.

Fixes: 78eaf6095cc763c ("clk: rockchip: disable unused clocks")
Signed-off-by: Alexander Kochetkov <al.kochet@gmail.com>
Cc: stable@vger.kernel.org # 4.1.x-
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>

diff --git a/drivers/clk/rockchip/clk-rk3188.c b/drivers/clk/rockchip/clk-rk3188.c
index 3659ea9..404a966 100644 (file)
--- a/drivers/clk/rockchip/clk-rk3188.c
+++ b/drivers/clk/rockchip/clk-rk3188.c
@@ -710,6 +710,7 @@ static const char *const rk3188_critical_clocks[] __initconst = {
        "hclk_peri",
        "pclk_cpu",
        "pclk_peri",
+       "hclk_cpubus"
 };
 
 static void __init rk3188_common_clk_init(struct device_node *np)