Messages in this thread | | | Date | Wed, 29 Oct 2014 13:50:20 -0700 | Subject | Re: [PATCH] clk: rockchip: disable unused clocks | From | Doug Anderson <> |
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Kever,
On Wed, Oct 29, 2014 at 3:06 AM, Kever Yang <kever.yang@rock-chips.com> wrote: > The rockchip clock driver use CLK_IGNORE_UNUSED flag to make sure > all the clocks are available like default power on state. > We have implement the clock manage in most of rockchip drivers, > it is time to remove it for power save. > Instead we add CLK_IGNORE_UNUSED for some clock nodes which should > be on during boot or no module driver in kernel will initialize it. > > Signed-off-by: Kever Yang <kever.yang@rock-chips.com> > --- > > drivers/clk/rockchip/clk-rk3188.c | 32 ++++----- > drivers/clk/rockchip/clk-rk3288.c | 146 +++++++++++++++++++------------------- > drivers/clk/rockchip/clk.c | 9 --- > 3 files changed, 90 insertions(+), 97 deletions(-)
Your patch didn't seem to apply to the top of Heiko's "v3.19-clk/next". Where should it apply to?
> - GATE(ACLK_CPU, "aclk_cpu", "aclk_cpu_pre", 0, > + GATE(0, "aclk_cpu", "aclk_cpu_pre", CLK_IGNORE_UNUSED, > RK3288_CLKGATE_CON(0), 3, GFLAGS),
It seems strange to me that you're removing the ACLK_CPU ID here. Was that on purpose?
> - COMPOSITE_NOMUX(PCLK_CPU, "pclk_cpu", "aclk_cpu_pre", 0, > + COMPOSITE_NOMUX(0, "pclk_cpu", "aclk_cpu_pre", CLK_IGNORE_UNUSED, > RK3288_CLKSEL_CON(1), 12, 3, DFLAGS, > RK3288_CLKGATE_CON(0), 5, GFLAGS),
Here too for PCLK_CPU. There are a few others as well.
I'll also say that when I applied this atop my local tree that USB stopped working. I just see:
[ 1647.626747] hub 2-1:1.0: hub_port_status failed (err = -110) [ 1657.626746] hub 2-1:1.0: hub_port_status failed (err = -110)
...over and over and over again.
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