[PATCH] arm: imx: clk: correct arm clock usecount
Anson Huang
b20788 at freescale.com
Fri Nov 15 13:14:18 EST 2013
ARM clock is sourcing from pll1_sw, and pll1_sw can be either from
pll1_sys or step, so we should enable arm clock during clock
initialization instead of pll1_sys, otherwise, arm clock's usecount
would be incorrect and PLL1 will never be disabled even it is not
used.
And, currently ARM clock is hold be twd clock, but if using "nosmp"
, twd will not be used, that will cause arm clock's usecount to be
0, and pll1_sw will be disabled, system will hang if we enable cpufreq
which will make pll1_sw source from pll2_pfd2 when arm running at 396M.
Signed-off-by: Anson Huang <b20788 at freescale.com>
---
arch/arm/mach-imx/clk-imx6q.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm/mach-imx/clk-imx6q.c b/arch/arm/mach-imx/clk-imx6q.c
index d756d91..133feff 100644
--- a/arch/arm/mach-imx/clk-imx6q.c
+++ b/arch/arm/mach-imx/clk-imx6q.c
@@ -114,7 +114,7 @@ static struct clk *clk[clk_max];
static struct clk_onecell_data clk_data;
static enum mx6q_clks const clks_init_on[] __initconst = {
- mmdc_ch0_axi, rom, pll1_sys,
+ mmdc_ch0_axi, rom, arm,
};
static struct clk_div_table clk_enet_ref_table[] = {
--
1.7.9.5
More information about the linux-arm-kernel
mailing list