clk: rockchip: add hclk_cpubus to the list of rk3188 critical clocks
authorAlexander Kochetkov <al.kochet@gmail.com>
Tue, 26 Jan 2016 13:34:00 +0000 (16:34 +0300)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 12 Apr 2016 16:09:02 +0000 (09:09 -0700)
commit e8b63288b37dbb8457b510c9d96f6006da4653f6 upstream.

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>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/clk/rockchip/clk-rk3188.c

index abb47608713bc39a8fddbdf915f29955b10a497f..fe728f8dcbe43102ef68d03fef9ab203888bbbaf 100644 (file)
@@ -718,6 +718,7 @@ 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)