diff mbox

[v2] clk: rockchip: disable unused clocks

Message ID 1414676335-20203-1-git-send-email-kever.yang@rock-chips.com (mailing list archive)
State New, archived
Headers show

Commit Message

Kever Yang Oct. 30, 2014, 1:38 p.m. UTC 
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>
---

Changes in v2:
- get some clock ID back
- add CLK_IGNORE_UNUSED tag for aclk_strc and aclk_core in clk-rk3188.c
- add CLK_IGNORE_UNUSED tag for rk3288 dwc2

 drivers/clk/rockchip/clk-rk3188.c |  36 +++++-----
 drivers/clk/rockchip/clk-rk3288.c | 148 +++++++++++++++++++-------------------
 drivers/clk/rockchip/clk.c        |   9 ---
 3 files changed, 92 insertions(+), 101 deletions(-)

Comments

Heiko Stuebner Oct. 30, 2014, 6:46 p.m. UTC | #1 
Hi Kever,

Am Donnerstag, 30. Oktober 2014, 21:38:55 schrieb Kever Yang:
> 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>

I've tested this on all 3 currently supported Rockchip socs and was able to 
boot to an initramfs on all of them.

[...]

> diff --git a/drivers/clk/rockchip/clk-rk3288.c
> b/drivers/clk/rockchip/clk-rk3288.c index 279a662..cf9d8b0 100644
> --- a/drivers/clk/rockchip/clk-rk3288.c
> +++ b/drivers/clk/rockchip/clk-rk3288.c

[...]

> -	COMPOSITE_NOMUX(0, "armcore0", "armclk", 0,
> -			RK3288_CLKSEL_CON(36), 0, 3, DFLAGS | CLK_DIVIDER_READ_ONLY,
> +	COMPOSITE_NOMUX(0, "armcore0", "armclk", CLK_IGNORE_UNUSED,
> +			RK3288_CLKSEL_CON(36), 0, 3, DFLAGS,
>  			RK3288_CLKGATE_CON(12), 0, GFLAGS),
> -	COMPOSITE_NOMUX(0, "armcore1", "armclk", 0,
> -			RK3288_CLKSEL_CON(36), 4, 3, DFLAGS | CLK_DIVIDER_READ_ONLY,
> +	COMPOSITE_NOMUX(0, "armcore1", "armclk", CLK_IGNORE_UNUSED,
> +			RK3288_CLKSEL_CON(36), 4, 3, DFLAGS,
>  			RK3288_CLKGATE_CON(12), 1, GFLAGS),
> -	COMPOSITE_NOMUX(0, "armcore2", "armclk", 0,
> -			RK3288_CLKSEL_CON(36), 8, 3, DFLAGS | CLK_DIVIDER_READ_ONLY,
> +	COMPOSITE_NOMUX(0, "armcore2", "armclk", CLK_IGNORE_UNUSED,
> +			RK3288_CLKSEL_CON(36), 8, 3, DFLAGS,
>  			RK3288_CLKGATE_CON(12), 2, GFLAGS),
> -	COMPOSITE_NOMUX(0, "armcore3", "armclk", 0,
> -			RK3288_CLKSEL_CON(36), 12, 3, DFLAGS | CLK_DIVIDER_READ_ONLY,
> +	COMPOSITE_NOMUX(0, "armcore3", "armclk", CLK_IGNORE_UNUSED,
> +			RK3288_CLKSEL_CON(36), 12, 3, DFLAGS,
>  			RK3288_CLKGATE_CON(12), 3, GFLAGS),
> -	COMPOSITE_NOMUX(0, "l2ram", "armclk", 0,
> -			RK3288_CLKSEL_CON(37), 0, 3, DFLAGS | CLK_DIVIDER_READ_ONLY,
> +	COMPOSITE_NOMUX(0, "l2ram", "armclk", CLK_IGNORE_UNUSED,
> +			RK3288_CLKSEL_CON(37), 0, 3, DFLAGS,
>  			RK3288_CLKGATE_CON(12), 4, GFLAGS),
> -	COMPOSITE_NOMUX(0, "aclk_core_m0", "armclk", 0,
> -			RK3288_CLKSEL_CON(0), 0, 4, DFLAGS | CLK_DIVIDER_READ_ONLY,
> +	COMPOSITE_NOMUX(0, "aclk_core_m0", "armclk", CLK_IGNORE_UNUSED,
> +			RK3288_CLKSEL_CON(0), 0, 4, DFLAGS,
>  			RK3288_CLKGATE_CON(12), 5, GFLAGS),
> -	COMPOSITE_NOMUX(0, "aclk_core_mp", "armclk", 0,
> -			RK3288_CLKSEL_CON(0), 4, 4, DFLAGS | CLK_DIVIDER_READ_ONLY,
> +	COMPOSITE_NOMUX(0, "aclk_core_mp", "armclk", CLK_IGNORE_UNUSED,
> +			RK3288_CLKSEL_CON(0), 4, 4, DFLAGS,
>  			RK3288_CLKGATE_CON(12), 6, GFLAGS),
>  	COMPOSITE_NOMUX(0, "atclk", "armclk", 0,
>  			RK3288_CLKSEL_CON(37), 4, 5, DFLAGS | CLK_DIVIDER_READ_ONLY,

For these clocks you're removing the READ_ONLY dvider-flags. If this is 
necessary for something it should be a separate patch.
In this change it is nevertheless unrelated.


Heiko
Doug Anderson Oct. 30, 2014, 8:28 p.m. UTC | #2 
Kever,

On Thu, Oct 30, 2014 at 6:38 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>
> ---
>
> Changes in v2:
> - get some clock ID back
> - add CLK_IGNORE_UNUSED tag for aclk_strc and aclk_core in clk-rk3188.c
> - add CLK_IGNORE_UNUSED tag for rk3288 dwc2
>
>  drivers/clk/rockchip/clk-rk3188.c |  36 +++++-----
>  drivers/clk/rockchip/clk-rk3288.c | 148 +++++++++++++++++++-------------------
>  drivers/clk/rockchip/clk.c        |   9 ---
>  3 files changed, 92 insertions(+), 101 deletions(-)

I'm on a system that's actually using the PWM regulator (rk3288-pinky)
based on the one in EVB.  On this system your patch makes it crash
about half the time at bootup (if the PWM stopped when the level was
high it will overvolt but not crash and if the PWM stopped when the
level was low it will undervolt and crash).

It turns out that there's a bug in the rk3288.dts where it's
referencing PCLK_PWM instead of PCLK_RKPWM.  I'll send up a patch for
that as soon as I finish testing everything.  ...but even when fixing
that there are still problems:

* There's a period of time during init time where the PLL clock will
be not be enabled.  That's a problem.  It's slightly hidden by the
fact that we might have the PWM backlight on, though.

* At the moment the PWM regulator isn't actually "enabled" by default
(it's left on by the BIOS but nothing in the system actually enables
it).


I'll see if I can come up with some patches to fix those issues, but
for now it might be wise to leave "pclk_rkpwm" as CLK_IGNORE_UNUSED.


I'll also note that with your patch (even after fixing the above):
* Graphics stops working for me totally.

* Something like 1% of the time the system locks up on reboot in my
reboot tests.  I still need to confirm to be 100% sure that this was
caused by your patch though...
Doug Anderson Oct. 31, 2014, 12:07 a.m. UTC | #3 
Kever,

On Thu, Oct 30, 2014 at 6:38 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>
> ---
>
> Changes in v2:
> - get some clock ID back
> - add CLK_IGNORE_UNUSED tag for aclk_strc and aclk_core in clk-rk3188.c
> - add CLK_IGNORE_UNUSED tag for rk3288 dwc2
>
>  drivers/clk/rockchip/clk-rk3188.c |  36 +++++-----
>  drivers/clk/rockchip/clk-rk3288.c | 148 +++++++++++++++++++-------------------
>  drivers/clk/rockchip/clk.c        |   9 ---
>  3 files changed, 92 insertions(+), 101 deletions(-)

A few more regressions introduced by your patch:

* When testing suspend/resume _without_ going into "DEEP" mode, I get
a crash on resume.  The crash is "fixed" with:

-       COMPOSITE_NOMUX(0, "pclk_dbg_pre", "armclk", CLK_IGNORE_UNUSED,
+       COMPOSITE_NOMUX(0, "pclk_dbg_pre", "armclk", 0,

-       GATE(0, "cs_dbg", "pclk_dbg_pre", CLK_IGNORE_UNUSED,
+       GATE(0, "cs_dbg", "pclk_dbg_pre", 0,

I haven't dug into what the heck is going on yet (and I'm not sure you
should include the above in your patch), but the crash looks like:

    [   18.640025] CPU1: shutdown
    [   18.643304] CPU2: shutdown
    [   18.646490] CPU3: shutdown
    [   18.649537] Internal error: Oops - undefined instruction: 0 [#1] SMP ARM

    Entering kdb (current=0xed7a9e00, pid 2549) on processor 0 Oops: (null)
    due to oops @ 0xc010f074

    dCPU: 0 PID: 2549 Comm: cat Not tainted 3.14.0 #455
    dtask: ed7a9e00 ti: ecd38000 task.ti: ecd38000
    PC is at reset_ctrl_regs+0xb0/0x27c
    LR is at dbg_cpu_pm_notify+0x24/0x2c
    pc : [<c010f074>]    lr : [<c010f264>]    psr: 60000193
    sp : ecd39d70  ip : ecd39d98  fp : ecd39d94
    r10: c0b08fb8  r9 : ecd39e54  r8 : 00000000
    r7 : ecd38030  r6 : 00000002  r5 : c0b4a37c  r4 : 00000000
    r3 : 00000000  r2 : 00000000  r1 : 00000002  r0 : 00000000
    Flags: nZCv  IRQs off  FIQs on  Mode SVC_32  ISA ARM  Segment user
    Control: 10c5387d  Table: 2db6806a  DAC: 00000015
    dCPU: 0 PID: 2549 Comm: cat Not tainted 3.14.0 #455
    [<c010e26c>] (unwind_backtrace) from [<c010a3cc>] (show_stack+0x20/0x24)
    [<c010a3cc>] (show_stack) from [<c0610fcc>] (dump_stack+0x78/0x94)
    [<c0610fcc>] (dump_stack) from [<c0107438>] (show_regs+0x2c/0x34)
    [<c0107438>] (show_regs) from [<c0195270>] (kdb_dumpregs+0x38/0x60)
    [<c0195270>] (kdb_dumpregs) from [<c0198534>] (kdb_main_loop+0x210/0x668)
    [<c0198534>] (kdb_main_loop) from [<c019b30c>] (kdb_stub+0x298/0x3cc)
    [<c019b30c>] (kdb_stub) from [<c0191ae0>] (kgdb_cpu_enter+0x1c4/0x60c)
    [<c0191ae0>] (kgdb_cpu_enter) from [<c01921fc>]
(kgdb_handle_exception+0x194/0x1c8)
    [<c01921fc>] (kgdb_handle_exception) from [<c010d930>]
(kgdb_notify+0x38/0x50)
    [<c010d930>] (kgdb_notify) from [<c0142688>] (notifier_call_chain+0x50/0x78)
    [<c0142688>] (notifier_call_chain) from [<c014270c>]
(atomic_notifier_call_chain+0x2c/0x34)
    [<c014270c>] (atomic_notifier_call_chain) from [<c0142c64>]
(notify_die+0x4c/0x70)
    [<c0142c64>] (notify_die) from [<c010a4f8>] (die+0x128/0x3e0)
    [<c010a4f8>] (die) from [<c010a80c>] (arm_notify_die+0x5c/0x60)
    [<c010a80c>] (arm_notify_die) from [<c01000a0>] (do_undefinstr+0xa0/0x1a4)
    [<c01000a0>] (do_undefinstr) from [<c010b02c>] (__und_svc_finish+0x0/0x14)
    Exception stack(0xecd39d28 to 0xecd39d70)
    9d20:                   00000000 00000002 00000000 00000000
00000000 c0b4a37c
    9d40: 00000002 ecd38030 00000000 ecd39e54 c0b08fb8 ecd39d94
ecd39d98 ecd39d70
    9d60: c010f264 c010f074 60000193 ffffffff
    [<c010b02c>] (__und_svc_finish) from [<c010f074>]
(reset_ctrl_regs+0xb0/0x27c)
    [<c010f074>] (reset_ctrl_regs) from [<c010f264>]
(dbg_cpu_pm_notify+0x24/0x2c)
    [<c010f264>] (dbg_cpu_pm_notify) from [<c0142688>]
(notifier_call_chain+0x50/0x78)
    [<c0142688>] (notifier_call_chain) from [<c0142770>]
(__raw_notifier_call_chain+0x24/0x2c)
    [<c0142770>] (__raw_notifier_call_chain) from [<c01c2e2c>]
(cpu_pm_notify+0x34/0x50)
    [<c01c2e2c>] (cpu_pm_notify) from [<c01c2f00>] (cpu_pm_exit+0x30/0x48)
    [<c01c2f00>] (cpu_pm_exit) from [<c01c302c>] (cpu_pm_resume+0x1c/0x20)
    [<c01c302c>] (cpu_pm_resume) from [<c03d9234>] (syscore_resume+0x84/0xe4)
    [<c03d9234>] (syscore_resume) from [<c01628a0>]
(suspend_devices_and_enter+0x2e0/0x438)
    [<c01628a0>] (suspend_devices_and_enter) from [<c0162b08>]
(pm_suspend+0x110/0x214)
    [<c0162b08>] (pm_suspend) from [<c0161790>] (state_store+0xbc/0xd0)
    [<c0161790>] (state_store) from [<c0325ccc>] (kobj_attr_store+0x1c/0x28)
    [<c0325ccc>] (kobj_attr_store) from [<c026daac>] (sysfs_kf_write+0x4c/0x58)
    [<c026daac>] (sysfs_kf_write) from [<c0270e38>]
(kernfs_fop_write+0xfc/0x14c)
    [<c0270e38>] (kernfs_fop_write) from [<c02104d4>] (vfs_write+0xdc/0x18c)
    [<c02104d4>] (vfs_write) from [<c0210a98>] (SyS_write+0x58/0xb0)
    [<c0210a98>] (SyS_write) from [<c0106380>] (ret_fast_syscall+0x0/0x30)


I'm also having trouble going into "deep" suspend (which doesn't work
fully yet anyway) even after I fix the above.  Specifically _without_
this patch deep suspend takes up much less power than with this patch.
That one looks like it might involve more clocks.  Right now I usually
get low power if I leave all gate clocks on and disable these
composite clocks (ran out of time to confirm, to check the gates, to
double check, etc, but I can try to continue next week):

-       COMPOSITE(0, "aclk_vepu", mux_pll_src_cpll_gpll_usb480m_p, 0,
+       COMPOSITE(0, "aclk_vepu", mux_pll_src_cpll_gpll_usb480m_p,
CLK_IGNORE_UNUSED,

-       COMPOSITE(0, "aclk_vdpu", mux_pll_src_cpll_gpll_usb480m_p, 0,
+       COMPOSITE(0, "aclk_vdpu", mux_pll_src_cpll_gpll_usb480m_p,
CLK_IGNORE_UNUSED,

-       COMPOSITE(0, "aclk_rga_pre", mux_pll_src_cpll_gpll_usb480m_p, 0,
+       COMPOSITE(0, "aclk_rga_pre", mux_pll_src_cpll_gpll_usb480m_p,
CLK_IGNORE_UNUSED,

-       COMPOSITE(SCLK_RGA, "sclk_rga", mux_pll_src_cpll_gpll_usb480m_p, 0,
+       COMPOSITE(SCLK_RGA, "sclk_rga",
mux_pll_src_cpll_gpll_usb480m_p, CLK_IGNORE_UNUSED,

-       COMPOSITE(ACLK_HEVC, "aclk_hevc", mux_pll_src_cpll_gpll_npll_p, 0,
+       COMPOSITE(ACLK_HEVC, "aclk_hevc",
mux_pll_src_cpll_gpll_npll_p, CLK_IGNORE_UNUSED,

-       COMPOSITE(SCLK_HEVC_CABAC, "sclk_hevc_cabac",
mux_pll_src_cpll_gpll_npll_p, 0,
+       COMPOSITE(SCLK_HEVC_CABAC, "sclk_hevc_cabac",
mux_pll_src_cpll_gpll_npll_p, CLK_IGNORE_UNUSED,

-       COMPOSITE(SCLK_HEVC_CORE, "sclk_hevc_core",
mux_pll_src_cpll_gpll_npll_p, 0,
+       COMPOSITE(SCLK_HEVC_CORE, "sclk_hevc_core",
mux_pll_src_cpll_gpll_npll_p, CLK_IGNORE_UNUSED,


I could believe that some of these problems have to do with the power
domain patches, but I have in no way confirmed that.

-Doug
diff mbox

Patch

diff --git a/drivers/clk/rockchip/clk-rk3188.c b/drivers/clk/rockchip/clk-rk3188.c
index beed49c..0bc0e7d 100644
--- a/drivers/clk/rockchip/clk-rk3188.c
+++ b/drivers/clk/rockchip/clk-rk3188.c
@@ -257,9 +257,9 @@  static struct rockchip_clk_branch common_clk_branches[] __initdata = {
 	GATE(0, "hclk_vdpu", "aclk_vdpu", 0,
 			RK2928_CLKGATE_CON(3), 12, GFLAGS),
 
-	GATE(0, "gpll_ddr", "gpll", 0,
+	GATE(0, "gpll_ddr", "gpll", CLK_IGNORE_UNUSED,
 			RK2928_CLKGATE_CON(1), 7, GFLAGS),
-	COMPOSITE(0, "ddrphy", mux_ddrphy_p, 0,
+	COMPOSITE(0, "ddrphy", mux_ddrphy_p, CLK_IGNORE_UNUSED,
 			RK2928_CLKSEL_CON(26), 8, 1, MFLAGS, 0, 2, DFLAGS | CLK_DIVIDER_POWER_OF_TWO,
 			RK2928_CLKGATE_CON(0), 2, GFLAGS),
 
@@ -270,10 +270,10 @@  static struct rockchip_clk_branch common_clk_branches[] __initdata = {
 			RK2928_CLKGATE_CON(0), 6, GFLAGS),
 	GATE(0, "pclk_cpu", "pclk_cpu_pre", 0,
 			RK2928_CLKGATE_CON(0), 5, GFLAGS),
-	GATE(0, "hclk_cpu", "hclk_cpu_pre", 0,
+	GATE(0, "hclk_cpu", "hclk_cpu_pre", CLK_IGNORE_UNUSED,
 			RK2928_CLKGATE_CON(0), 4, GFLAGS),
 
-	COMPOSITE(0, "aclk_lcdc0_pre", mux_pll_src_cpll_gpll_p, 0,
+	COMPOSITE(0, "aclk_lcdc0_pre", mux_pll_src_cpll_gpll_p, CLK_IGNORE_UNUSED,
 			RK2928_CLKSEL_CON(31), 7, 1, MFLAGS, 0, 5, DFLAGS,
 			RK2928_CLKGATE_CON(3), 0, GFLAGS),
 	COMPOSITE(0, "aclk_lcdc1_pre", mux_pll_src_cpll_gpll_p, 0,
@@ -304,9 +304,9 @@  static struct rockchip_clk_branch common_clk_branches[] __initdata = {
 	 * the 480m are generated inside the usb block from these clocks,
 	 * but they are also a source for the hsicphy clock.
 	 */
-	GATE(SCLK_OTGPHY0, "sclk_otgphy0", "usb480m", 0,
+	GATE(SCLK_OTGPHY0, "sclk_otgphy0", "usb480m", CLK_IGNORE_UNUSED,
 			RK2928_CLKGATE_CON(1), 5, GFLAGS),
-	GATE(SCLK_OTGPHY1, "sclk_otgphy1", "usb480m", 0,
+	GATE(SCLK_OTGPHY1, "sclk_otgphy1", "usb480m", CLK_IGNORE_UNUSED,
 			RK2928_CLKGATE_CON(1), 6, GFLAGS),
 
 	COMPOSITE(0, "mac_src", mux_mac_p, 0,
@@ -399,8 +399,8 @@  static struct rockchip_clk_branch common_clk_branches[] __initdata = {
 
 	/* aclk_cpu gates */
 	GATE(ACLK_DMA1, "aclk_dma1", "aclk_cpu", 0, RK2928_CLKGATE_CON(5), 0, GFLAGS),
-	GATE(0, "aclk_intmem", "aclk_cpu", 0, RK2928_CLKGATE_CON(4), 12, GFLAGS),
-	GATE(0, "aclk_strc_sys", "aclk_cpu", 0, RK2928_CLKGATE_CON(4), 10, GFLAGS),
+	GATE(0, "aclk_intmem", "aclk_cpu", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(4), 12, GFLAGS),
+	GATE(0, "aclk_strc_sys", "aclk_cpu", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(4), 10, GFLAGS),
 
 	/* hclk_cpu gates */
 	GATE(HCLK_ROM, "hclk_rom", "hclk_cpu", 0, RK2928_CLKGATE_CON(5), 6, GFLAGS),
@@ -457,23 +457,23 @@  static struct rockchip_clk_branch common_clk_branches[] __initdata = {
 	GATE(0, "pclk_ddrupctl", "pclk_cpu", 0, RK2928_CLKGATE_CON(5), 7, GFLAGS),
 	GATE(0, "pclk_ddrpubl", "pclk_cpu", 0, RK2928_CLKGATE_CON(9), 6, GFLAGS),
 	GATE(0, "pclk_dbg", "pclk_cpu", 0, RK2928_CLKGATE_CON(9), 1, GFLAGS),
-	GATE(PCLK_GRF, "pclk_grf", "pclk_cpu", 0, RK2928_CLKGATE_CON(5), 4, GFLAGS),
-	GATE(PCLK_PMU, "pclk_pmu", "pclk_cpu", 0, RK2928_CLKGATE_CON(5), 5, GFLAGS),
+	GATE(PCLK_GRF, "pclk_grf", "pclk_cpu", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(5), 4, GFLAGS),
+	GATE(PCLK_PMU, "pclk_pmu", "pclk_cpu", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(5), 5, GFLAGS),
 
 	/* aclk_peri */
 	GATE(ACLK_DMA2, "aclk_dma2", "aclk_peri", 0, RK2928_CLKGATE_CON(5), 1, GFLAGS),
 	GATE(ACLK_SMC, "aclk_smc", "aclk_peri", 0, RK2928_CLKGATE_CON(5), 8, GFLAGS),
-	GATE(0, "aclk_peri_niu", "aclk_peri", 0, RK2928_CLKGATE_CON(4), 4, GFLAGS),
-	GATE(0, "aclk_cpu_peri", "aclk_peri", 0, RK2928_CLKGATE_CON(4), 2, GFLAGS),
-	GATE(0, "aclk_peri_axi_matrix", "aclk_peri", 0, RK2928_CLKGATE_CON(4), 3, GFLAGS),
+	GATE(0, "aclk_peri_niu", "aclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(4), 4, GFLAGS),
+	GATE(0, "aclk_cpu_peri", "aclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(4), 2, GFLAGS),
+	GATE(0, "aclk_peri_axi_matrix", "aclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(4), 3, GFLAGS),
 
 	/* pclk_peri gates */
-	GATE(0, "pclk_peri_axi_matrix", "pclk_peri", 0, RK2928_CLKGATE_CON(4), 1, GFLAGS),
+	GATE(0, "pclk_peri_axi_matrix", "pclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(4), 1, GFLAGS),
 	GATE(PCLK_PWM23, "pclk_pwm23", "pclk_peri", 0, RK2928_CLKGATE_CON(7), 11, GFLAGS),
 	GATE(PCLK_WDT, "pclk_wdt", "pclk_peri", 0, RK2928_CLKGATE_CON(7), 15, GFLAGS),
 	GATE(PCLK_SPI0, "pclk_spi0", "pclk_peri", 0, RK2928_CLKGATE_CON(7), 12, GFLAGS),
 	GATE(PCLK_SPI1, "pclk_spi1", "pclk_peri", 0, RK2928_CLKGATE_CON(7), 13, GFLAGS),
-	GATE(PCLK_UART2, "pclk_uart2", "pclk_peri", 0, RK2928_CLKGATE_CON(8), 2, GFLAGS),
+	GATE(PCLK_UART2, "pclk_uart2", "pclk_peri", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(8), 2, GFLAGS),
 	GATE(PCLK_UART3, "pclk_uart3", "pclk_peri", 0, RK2928_CLKGATE_CON(8), 3, GFLAGS),
 	GATE(PCLK_I2C2, "pclk_i2c2", "pclk_peri", 0, RK2928_CLKGATE_CON(8), 6, GFLAGS),
 	GATE(PCLK_I2C3, "pclk_i2c3", "pclk_peri", 0, RK2928_CLKGATE_CON(8), 7, GFLAGS),
@@ -511,7 +511,7 @@  static struct rockchip_clk_branch rk3066a_clk_branches[] __initdata = {
 							    | CLK_DIVIDER_READ_ONLY,
 			RK2928_CLKGATE_CON(4), 9, GFLAGS),
 
-	GATE(CORE_L2C, "core_l2c", "aclk_cpu", 0,
+	GATE(CORE_L2C, "core_l2c", "aclk_cpu", CLK_IGNORE_UNUSED,
 			RK2928_CLKGATE_CON(9), 4, GFLAGS),
 
 	COMPOSITE(0, "aclk_peri_pre", mux_pll_src_gpll_cpll_p, 0,
@@ -618,7 +618,7 @@  PNAME(mux_hsicphy_p)		= { "sclk_otgphy0", "sclk_otgphy1",
 				    "gpll", "cpll" };
 
 static struct rockchip_clk_branch rk3188_clk_branches[] __initdata = {
-	COMPOSITE_NOMUX_DIVTBL(0, "aclk_core", "armclk", 0,
+	COMPOSITE_NOMUX_DIVTBL(0, "aclk_core", "armclk", CLK_IGNORE_UNUSED,
 			RK2928_CLKSEL_CON(1), 3, 3, DFLAGS | CLK_DIVIDER_READ_ONLY,
 			div_rk3188_aclk_core_t, RK2928_CLKGATE_CON(0), 7, GFLAGS),
 
@@ -633,7 +633,7 @@  static struct rockchip_clk_branch rk3188_clk_branches[] __initdata = {
 			RK2928_CLKSEL_CON(1), 14, 2, DFLAGS | CLK_DIVIDER_POWER_OF_TWO,
 			RK2928_CLKGATE_CON(4), 9, GFLAGS),
 
-	GATE(CORE_L2C, "core_l2c", "armclk", 0,
+	GATE(CORE_L2C, "core_l2c", "armclk", CLK_IGNORE_UNUSED,
 			RK2928_CLKGATE_CON(9), 4, GFLAGS),
 
 	COMPOSITE(0, "aclk_peri_pre", mux_pll_src_cpll_gpll_p, 0,
diff --git a/drivers/clk/rockchip/clk-rk3288.c b/drivers/clk/rockchip/clk-rk3288.c
index 279a662..cf9d8b0 100644
--- a/drivers/clk/rockchip/clk-rk3288.c
+++ b/drivers/clk/rockchip/clk-rk3288.c
@@ -228,31 +228,31 @@  static struct rockchip_clk_branch rk3288_clk_branches[] __initdata = {
 	 * Clock-Architecture Diagram 1
 	 */
 
-	GATE(0, "apll_core", "apll", 0,
+	GATE(0, "apll_core", "apll", CLK_IGNORE_UNUSED,
 			RK3288_CLKGATE_CON(0), 1, GFLAGS),
-	GATE(0, "gpll_core", "gpll", 0,
+	GATE(0, "gpll_core", "gpll", CLK_IGNORE_UNUSED,
 			RK3288_CLKGATE_CON(0), 2, GFLAGS),
 
-	COMPOSITE_NOMUX(0, "armcore0", "armclk", 0,
-			RK3288_CLKSEL_CON(36), 0, 3, DFLAGS | CLK_DIVIDER_READ_ONLY,
+	COMPOSITE_NOMUX(0, "armcore0", "armclk", CLK_IGNORE_UNUSED,
+			RK3288_CLKSEL_CON(36), 0, 3, DFLAGS,
 			RK3288_CLKGATE_CON(12), 0, GFLAGS),
-	COMPOSITE_NOMUX(0, "armcore1", "armclk", 0,
-			RK3288_CLKSEL_CON(36), 4, 3, DFLAGS | CLK_DIVIDER_READ_ONLY,
+	COMPOSITE_NOMUX(0, "armcore1", "armclk", CLK_IGNORE_UNUSED,
+			RK3288_CLKSEL_CON(36), 4, 3, DFLAGS,
 			RK3288_CLKGATE_CON(12), 1, GFLAGS),
-	COMPOSITE_NOMUX(0, "armcore2", "armclk", 0,
-			RK3288_CLKSEL_CON(36), 8, 3, DFLAGS | CLK_DIVIDER_READ_ONLY,
+	COMPOSITE_NOMUX(0, "armcore2", "armclk", CLK_IGNORE_UNUSED,
+			RK3288_CLKSEL_CON(36), 8, 3, DFLAGS,
 			RK3288_CLKGATE_CON(12), 2, GFLAGS),
-	COMPOSITE_NOMUX(0, "armcore3", "armclk", 0,
-			RK3288_CLKSEL_CON(36), 12, 3, DFLAGS | CLK_DIVIDER_READ_ONLY,
+	COMPOSITE_NOMUX(0, "armcore3", "armclk", CLK_IGNORE_UNUSED,
+			RK3288_CLKSEL_CON(36), 12, 3, DFLAGS,
 			RK3288_CLKGATE_CON(12), 3, GFLAGS),
-	COMPOSITE_NOMUX(0, "l2ram", "armclk", 0,
-			RK3288_CLKSEL_CON(37), 0, 3, DFLAGS | CLK_DIVIDER_READ_ONLY,
+	COMPOSITE_NOMUX(0, "l2ram", "armclk", CLK_IGNORE_UNUSED,
+			RK3288_CLKSEL_CON(37), 0, 3, DFLAGS,
 			RK3288_CLKGATE_CON(12), 4, GFLAGS),
-	COMPOSITE_NOMUX(0, "aclk_core_m0", "armclk", 0,
-			RK3288_CLKSEL_CON(0), 0, 4, DFLAGS | CLK_DIVIDER_READ_ONLY,
+	COMPOSITE_NOMUX(0, "aclk_core_m0", "armclk", CLK_IGNORE_UNUSED,
+			RK3288_CLKSEL_CON(0), 0, 4, DFLAGS,
 			RK3288_CLKGATE_CON(12), 5, GFLAGS),
-	COMPOSITE_NOMUX(0, "aclk_core_mp", "armclk", 0,
-			RK3288_CLKSEL_CON(0), 4, 4, DFLAGS | CLK_DIVIDER_READ_ONLY,
+	COMPOSITE_NOMUX(0, "aclk_core_mp", "armclk", CLK_IGNORE_UNUSED,
+			RK3288_CLKSEL_CON(0), 4, 4, DFLAGS,
 			RK3288_CLKGATE_CON(12), 6, GFLAGS),
 	COMPOSITE_NOMUX(0, "atclk", "armclk", 0,
 			RK3288_CLKSEL_CON(37), 4, 5, DFLAGS | CLK_DIVIDER_READ_ONLY,
@@ -267,28 +267,28 @@  static struct rockchip_clk_branch rk3288_clk_branches[] __initdata = {
 	GATE(0, "pclk_core_niu", "pclk_dbg_pre", 0,
 			RK3288_CLKGATE_CON(12), 11, GFLAGS),
 
-	GATE(0, "dpll_ddr", "dpll", 0,
+	GATE(0, "dpll_ddr", "dpll", CLK_IGNORE_UNUSED,
 			RK3288_CLKGATE_CON(0), 8, GFLAGS),
 	GATE(0, "gpll_ddr", "gpll", 0,
 			RK3288_CLKGATE_CON(0), 9, GFLAGS),
-	COMPOSITE_NOGATE(0, "ddrphy", mux_ddrphy_p, 0,
+	COMPOSITE_NOGATE(0, "ddrphy", mux_ddrphy_p, CLK_IGNORE_UNUSED,
 			RK3288_CLKSEL_CON(26), 2, 1, MFLAGS, 0, 2,
 					DFLAGS | CLK_DIVIDER_POWER_OF_TWO),
 
-	GATE(0, "gpll_aclk_cpu", "gpll", 0,
+	GATE(0, "gpll_aclk_cpu", "gpll", CLK_IGNORE_UNUSED,
 			RK3288_CLKGATE_CON(0), 10, GFLAGS),
-	GATE(0, "cpll_aclk_cpu", "cpll", 0,
+	GATE(0, "cpll_aclk_cpu", "cpll", CLK_IGNORE_UNUSED,
 			RK3288_CLKGATE_CON(0), 11, GFLAGS),
-	COMPOSITE_NOGATE(0, "aclk_cpu_src", mux_aclk_cpu_src_p, 0,
+	COMPOSITE_NOGATE(0, "aclk_cpu_src", mux_aclk_cpu_src_p, CLK_IGNORE_UNUSED,
 			RK3288_CLKSEL_CON(1), 15, 1, MFLAGS, 3, 5, DFLAGS),
 	DIV(0, "aclk_cpu_pre", "aclk_cpu_src", CLK_SET_RATE_PARENT,
 			RK3288_CLKSEL_CON(1), 0, 3, DFLAGS),
-	GATE(ACLK_CPU, "aclk_cpu", "aclk_cpu_pre", 0,
+	GATE(ACLK_CPU, "aclk_cpu", "aclk_cpu_pre", CLK_IGNORE_UNUSED,
 			RK3288_CLKGATE_CON(0), 3, GFLAGS),
-	COMPOSITE_NOMUX(PCLK_CPU, "pclk_cpu", "aclk_cpu_pre", 0,
+	COMPOSITE_NOMUX(PCLK_CPU, "pclk_cpu", "aclk_cpu_pre", CLK_IGNORE_UNUSED,
 			RK3288_CLKSEL_CON(1), 12, 3, DFLAGS,
 			RK3288_CLKGATE_CON(0), 5, GFLAGS),
-	COMPOSITE_NOMUX_DIVTBL(HCLK_CPU, "hclk_cpu", "aclk_cpu_pre", 0,
+	COMPOSITE_NOMUX_DIVTBL(HCLK_CPU, "hclk_cpu", "aclk_cpu_pre", CLK_IGNORE_UNUSED,
 			RK3288_CLKSEL_CON(1), 8, 2, DFLAGS, div_hclk_cpu_t,
 			RK3288_CLKGATE_CON(0), 4, GFLAGS),
 	GATE(0, "c2c_host", "aclk_cpu_src", 0,
@@ -296,7 +296,7 @@  static struct rockchip_clk_branch rk3288_clk_branches[] __initdata = {
 	COMPOSITE_NOMUX(0, "crypto", "aclk_cpu_pre", 0,
 			RK3288_CLKSEL_CON(26), 6, 2, DFLAGS,
 			RK3288_CLKGATE_CON(5), 4, GFLAGS),
-	GATE(0, "aclk_bus_2pmu", "aclk_cpu_pre", 0,
+	GATE(0, "aclk_bus_2pmu", "aclk_cpu_pre", CLK_IGNORE_UNUSED,
 			RK3288_CLKGATE_CON(0), 7, GFLAGS),
 
 	COMPOSITE(0, "i2s_src", mux_pll_src_cpll_gpll_p, 0,
@@ -375,12 +375,12 @@  static struct rockchip_clk_branch rk3288_clk_branches[] __initdata = {
 	GATE(HCLK_VCODEC, "hclk_vcodec", "hclk_vcodec_pre", 0,
 		RK3288_CLKGATE_CON(9), 1, GFLAGS),
 
-	COMPOSITE(0, "aclk_vio0", mux_pll_src_cpll_gpll_usb480m_p, 0,
+	COMPOSITE(0, "aclk_vio0", mux_pll_src_cpll_gpll_usb480m_p, CLK_IGNORE_UNUSED,
 			RK3288_CLKSEL_CON(31), 6, 2, MFLAGS, 0, 5, DFLAGS,
 			RK3288_CLKGATE_CON(3), 0, GFLAGS),
 	DIV(0, "hclk_vio", "aclk_vio0", 0,
 			RK3288_CLKSEL_CON(28), 8, 5, DFLAGS),
-	COMPOSITE(0, "aclk_vio1", mux_pll_src_cpll_gpll_usb480m_p, 0,
+	COMPOSITE(0, "aclk_vio1", mux_pll_src_cpll_gpll_usb480m_p, CLK_IGNORE_UNUSED,
 			RK3288_CLKSEL_CON(31), 14, 2, MFLAGS, 8, 5, DFLAGS,
 			RK3288_CLKGATE_CON(3), 2, GFLAGS),
 
@@ -391,10 +391,10 @@  static struct rockchip_clk_branch rk3288_clk_branches[] __initdata = {
 			RK3288_CLKSEL_CON(30), 14, 2, MFLAGS, 8, 5, DFLAGS,
 			RK3288_CLKGATE_CON(3), 4, GFLAGS),
 
-	COMPOSITE(DCLK_VOP0, "dclk_vop0", mux_pll_src_cpll_gpll_npll_p, 0,
+	COMPOSITE(DCLK_VOP0, "dclk_vop0", mux_pll_src_cpll_gpll_npll_p, CLK_IGNORE_UNUSED,
 			RK3288_CLKSEL_CON(27), 0, 2, MFLAGS, 8, 8, DFLAGS,
 			RK3288_CLKGATE_CON(3), 1, GFLAGS),
-	COMPOSITE(DCLK_VOP1, "dclk_vop1", mux_pll_src_cpll_gpll_npll_p, 0,
+	COMPOSITE(DCLK_VOP1, "dclk_vop1", mux_pll_src_cpll_gpll_npll_p, CLK_IGNORE_UNUSED,
 			RK3288_CLKSEL_CON(29), 6, 2, MFLAGS, 8, 8, DFLAGS,
 			RK3288_CLKGATE_CON(3), 3, GFLAGS),
 
@@ -438,7 +438,7 @@  static struct rockchip_clk_branch rk3288_clk_branches[] __initdata = {
 
 	DIV(0, "pclk_pd_alive", "gpll", 0,
 			RK3288_CLKSEL_CON(33), 8, 5, DFLAGS),
-	COMPOSITE_NOMUX(0, "pclk_pd_pmu", "gpll", 0,
+	COMPOSITE_NOMUX(0, "pclk_pd_pmu", "gpll", CLK_IGNORE_UNUSED,
 			RK3288_CLKSEL_CON(33), 0, 5, DFLAGS,
 			RK3288_CLKGATE_CON(5), 8, GFLAGS),
 
@@ -446,16 +446,16 @@  static struct rockchip_clk_branch rk3288_clk_branches[] __initdata = {
 			RK3288_CLKSEL_CON(34), 6, 2, MFLAGS, 0, 5, DFLAGS,
 			RK3288_CLKGATE_CON(5), 7, GFLAGS),
 
-	COMPOSITE(0, "aclk_peri_src", mux_pll_src_cpll_gpll_p, 0,
+	COMPOSITE(0, "aclk_peri_src", mux_pll_src_cpll_gpll_p, CLK_IGNORE_UNUSED,
 			RK3288_CLKSEL_CON(10), 15, 1, MFLAGS, 0, 5, DFLAGS,
 			RK3288_CLKGATE_CON(2), 0, GFLAGS),
 	COMPOSITE_NOMUX(PCLK_PERI, "pclk_peri", "aclk_peri_src", 0,
 			RK3288_CLKSEL_CON(10), 12, 2, DFLAGS | CLK_DIVIDER_POWER_OF_TWO,
 			RK3288_CLKGATE_CON(2), 3, GFLAGS),
-	COMPOSITE_NOMUX(HCLK_PERI, "hclk_peri", "aclk_peri_src", 0,
+	COMPOSITE_NOMUX(HCLK_PERI, "hclk_peri", "aclk_peri_src", CLK_IGNORE_UNUSED,
 			RK3288_CLKSEL_CON(10), 8, 2, DFLAGS | CLK_DIVIDER_POWER_OF_TWO,
 			RK3288_CLKGATE_CON(2), 2, GFLAGS),
-	GATE(ACLK_PERI, "aclk_peri", "aclk_peri_src", 0,
+	GATE(ACLK_PERI, "aclk_peri", "aclk_peri_src", CLK_IGNORE_UNUSED,
 			RK3288_CLKGATE_CON(2), 1, GFLAGS),
 
 	/*
@@ -481,7 +481,7 @@  static struct rockchip_clk_branch rk3288_clk_branches[] __initdata = {
 	COMPOSITE(SCLK_SDIO1, "sclk_sdio1", mux_mmc_src_p, 0,
 			RK3288_CLKSEL_CON(34), 14, 2, MFLAGS, 8, 6, DFLAGS,
 			RK3288_CLKGATE_CON(13), 2, GFLAGS),
-	COMPOSITE(SCLK_EMMC, "sclk_emmc", mux_mmc_src_p, 0,
+	COMPOSITE(SCLK_EMMC, "sclk_emmc", mux_mmc_src_p, CLK_IGNORE_UNUSED,
 			RK3288_CLKSEL_CON(12), 14, 2, MFLAGS, 8, 6, DFLAGS,
 			RK3288_CLKGATE_CON(13), 3, GFLAGS),
 
@@ -492,13 +492,13 @@  static struct rockchip_clk_branch rk3288_clk_branches[] __initdata = {
 			RK3288_CLKSEL_CON(35), 6, 2, MFLAGS, 0, 5, DFLAGS,
 			RK3288_CLKGATE_CON(4), 10, GFLAGS),
 
-	GATE(SCLK_OTGPHY0, "sclk_otgphy0", "usb480m", 0,
+	GATE(SCLK_OTGPHY0, "sclk_otgphy0", "usb480m", CLK_IGNORE_UNUSED,
 			RK3288_CLKGATE_CON(13), 4, GFLAGS),
-	GATE(SCLK_OTGPHY1, "sclk_otgphy1", "usb480m", 0,
+	GATE(SCLK_OTGPHY1, "sclk_otgphy1", "usb480m", CLK_IGNORE_UNUSED,
 			RK3288_CLKGATE_CON(13), 5, GFLAGS),
-	GATE(SCLK_OTGPHY2, "sclk_otgphy2", "usb480m", 0,
+	GATE(SCLK_OTGPHY2, "sclk_otgphy2", "usb480m", CLK_IGNORE_UNUSED,
 			RK3288_CLKGATE_CON(13), 6, GFLAGS),
-	GATE(SCLK_OTG_ADP, "sclk_otg_adp", "xin32k", 0,
+	GATE(SCLK_OTG_ADP, "sclk_otg_adp", "xin32k", CLK_IGNORE_UNUSED,
 			RK3288_CLKGATE_CON(13), 7, GFLAGS),
 
 	COMPOSITE_NOMUX(SCLK_TSADC, "sclk_tsadc", "xin32k", 0,
@@ -603,19 +603,19 @@  static struct rockchip_clk_branch rk3288_clk_branches[] __initdata = {
 	 */
 
 	/* aclk_cpu gates */
-	GATE(0, "sclk_intmem0", "aclk_cpu", 0, RK3288_CLKGATE_CON(10), 5, GFLAGS),
-	GATE(0, "sclk_intmem1", "aclk_cpu", 0, RK3288_CLKGATE_CON(10), 6, GFLAGS),
-	GATE(0, "sclk_intmem2", "aclk_cpu", 0, RK3288_CLKGATE_CON(10), 7, GFLAGS),
+	GATE(0, "sclk_intmem0", "aclk_cpu", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(10), 5, GFLAGS),
+	GATE(0, "sclk_intmem1", "aclk_cpu", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(10), 6, GFLAGS),
+	GATE(0, "sclk_intmem2", "aclk_cpu", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(10), 7, GFLAGS),
 	GATE(ACLK_DMAC1, "aclk_dmac1", "aclk_cpu", 0, RK3288_CLKGATE_CON(10), 12, GFLAGS),
-	GATE(0, "aclk_strc_sys", "aclk_cpu", 0, RK3288_CLKGATE_CON(10), 13, GFLAGS),
-	GATE(0, "aclk_intmem", "aclk_cpu", 0, RK3288_CLKGATE_CON(10), 4, GFLAGS),
+	GATE(0, "aclk_strc_sys", "aclk_cpu", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(10), 13, GFLAGS),
+	GATE(0, "aclk_intmem", "aclk_cpu", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(10), 4, GFLAGS),
 	GATE(ACLK_CRYPTO, "aclk_crypto", "aclk_cpu", 0, RK3288_CLKGATE_CON(11), 6, GFLAGS),
 	GATE(0, "aclk_ccp", "aclk_cpu", 0, RK3288_CLKGATE_CON(11), 8, GFLAGS),
 
 	/* hclk_cpu gates */
 	GATE(HCLK_CRYPTO, "hclk_crypto", "hclk_cpu", 0, RK3288_CLKGATE_CON(11), 7, GFLAGS),
 	GATE(HCLK_I2S0, "hclk_i2s0", "hclk_cpu", 0, RK3288_CLKGATE_CON(10), 8, GFLAGS),
-	GATE(HCLK_ROM, "hclk_rom", "hclk_cpu", 0, RK3288_CLKGATE_CON(10), 9, GFLAGS),
+	GATE(HCLK_ROM, "hclk_rom", "hclk_cpu", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(10), 9, GFLAGS),
 	GATE(HCLK_SPDIF, "hclk_spdif", "hclk_cpu", 0, RK3288_CLKGATE_CON(10), 10, GFLAGS),
 	GATE(HCLK_SPDIF8CH, "hclk_spdif_8ch", "hclk_cpu", 0, RK3288_CLKGATE_CON(10), 11, GFLAGS),
 
@@ -624,42 +624,42 @@  static struct rockchip_clk_branch rk3288_clk_branches[] __initdata = {
 	GATE(PCLK_TIMER, "pclk_timer", "pclk_cpu", 0, RK3288_CLKGATE_CON(10), 1, GFLAGS),
 	GATE(PCLK_I2C0, "pclk_i2c0", "pclk_cpu", 0, RK3288_CLKGATE_CON(10), 2, GFLAGS),
 	GATE(PCLK_I2C2, "pclk_i2c2", "pclk_cpu", 0, RK3288_CLKGATE_CON(10), 3, GFLAGS),
-	GATE(0, "pclk_ddrupctl0", "pclk_cpu", 0, RK3288_CLKGATE_CON(10), 14, GFLAGS),
-	GATE(0, "pclk_publ0", "pclk_cpu", 0, RK3288_CLKGATE_CON(10), 15, GFLAGS),
-	GATE(0, "pclk_ddrupctl1", "pclk_cpu", 0, RK3288_CLKGATE_CON(11), 0, GFLAGS),
-	GATE(0, "pclk_publ1", "pclk_cpu", 0, RK3288_CLKGATE_CON(11), 1, GFLAGS),
+	GATE(0, "pclk_ddrupctl0", "pclk_cpu", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(10), 14, GFLAGS),
+	GATE(0, "pclk_publ0", "pclk_cpu", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(10), 15, GFLAGS),
+	GATE(0, "pclk_ddrupctl1", "pclk_cpu", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(11), 0, GFLAGS),
+	GATE(0, "pclk_publ1", "pclk_cpu", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(11), 1, GFLAGS),
 	GATE(0, "pclk_efuse_1024", "pclk_cpu", 0, RK3288_CLKGATE_CON(11), 2, GFLAGS),
 	GATE(PCLK_TZPC, "pclk_tzpc", "pclk_cpu", 0, RK3288_CLKGATE_CON(11), 3, GFLAGS),
-	GATE(PCLK_UART2, "pclk_uart2", "pclk_cpu", 0, RK3288_CLKGATE_CON(11), 9, GFLAGS),
+	GATE(PCLK_UART2, "pclk_uart2", "pclk_cpu", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(11), 9, GFLAGS),
 	GATE(0, "pclk_efuse_256", "pclk_cpu", 0, RK3288_CLKGATE_CON(11), 10, GFLAGS),
 	GATE(PCLK_RKPWM, "pclk_rkpwm", "pclk_cpu", 0, RK3288_CLKGATE_CON(11), 11, GFLAGS),
 
 	/* ddrctrl [DDR Controller PHY clock] gates */
-	GATE(0, "nclk_ddrupctl0", "ddrphy", 0, RK3288_CLKGATE_CON(11), 4, GFLAGS),
-	GATE(0, "nclk_ddrupctl1", "ddrphy", 0, RK3288_CLKGATE_CON(11), 5, GFLAGS),
+	GATE(0, "nclk_ddrupctl0", "ddrphy", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(11), 4, GFLAGS),
+	GATE(0, "nclk_ddrupctl1", "ddrphy", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(11), 5, GFLAGS),
 
 	/* ddrphy gates */
-	GATE(0, "sclk_ddrphy0", "ddrphy", 0, RK3288_CLKGATE_CON(4), 12, GFLAGS),
-	GATE(0, "sclk_ddrphy1", "ddrphy", 0, RK3288_CLKGATE_CON(4), 13, GFLAGS),
+	GATE(0, "sclk_ddrphy0", "ddrphy", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(4), 12, GFLAGS),
+	GATE(0, "sclk_ddrphy1", "ddrphy", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(4), 13, GFLAGS),
 
 	/* aclk_peri gates */
-	GATE(0, "aclk_peri_axi_matrix", "aclk_peri", 0, RK3288_CLKGATE_CON(6), 2, GFLAGS),
+	GATE(0, "aclk_peri_axi_matrix", "aclk_peri", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(6), 2, GFLAGS),
 	GATE(ACLK_DMAC2, "aclk_dmac2", "aclk_peri", 0, RK3288_CLKGATE_CON(6), 3, GFLAGS),
-	GATE(0, "aclk_peri_niu", "aclk_peri", 0, RK3288_CLKGATE_CON(7), 11, GFLAGS),
-	GATE(ACLK_MMU, "aclk_mmu", "aclk_peri", 0, RK3288_CLKGATE_CON(8), 12, GFLAGS),
+	GATE(0, "aclk_peri_niu", "aclk_peri", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(7), 11, GFLAGS),
+	GATE(ACLK_MMU, "aclk_mmu", "aclk_peri", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(8), 12, GFLAGS),
 	GATE(ACLK_GMAC, "aclk_gmac", "aclk_peri", 0, RK3288_CLKGATE_CON(8), 0, GFLAGS),
 	GATE(HCLK_GPS, "hclk_gps", "aclk_peri", 0, RK3288_CLKGATE_CON(8), 2, GFLAGS),
 
 	/* hclk_peri gates */
-	GATE(0, "hclk_peri_matrix", "hclk_peri", 0, RK3288_CLKGATE_CON(6), 0, GFLAGS),
-	GATE(HCLK_OTG0, "hclk_otg0", "hclk_peri", 0, RK3288_CLKGATE_CON(7), 4, GFLAGS),
+	GATE(0, "hclk_peri_matrix", "hclk_peri", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(6), 0, GFLAGS),
+	GATE(HCLK_OTG0, "hclk_otg0", "hclk_peri", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(7), 4, GFLAGS),
 	GATE(HCLK_USBHOST0, "hclk_host0", "hclk_peri", 0, RK3288_CLKGATE_CON(7), 6, GFLAGS),
-	GATE(HCLK_USBHOST1, "hclk_host1", "hclk_peri", 0, RK3288_CLKGATE_CON(7), 7, GFLAGS),
+	GATE(HCLK_USBHOST1, "hclk_host1", "hclk_peri", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(7), 7, GFLAGS),
 	GATE(HCLK_HSIC, "hclk_hsic", "hclk_peri", 0, RK3288_CLKGATE_CON(7), 8, GFLAGS),
-	GATE(0, "hclk_usb_peri", "hclk_peri", 0, RK3288_CLKGATE_CON(7), 9, GFLAGS),
-	GATE(0, "hclk_peri_ahb_arbi", "hclk_peri", 0, RK3288_CLKGATE_CON(7), 10, GFLAGS),
-	GATE(0, "hclk_emem", "hclk_peri", 0, RK3288_CLKGATE_CON(7), 12, GFLAGS),
-	GATE(0, "hclk_mem", "hclk_peri", 0, RK3288_CLKGATE_CON(7), 13, GFLAGS),
+	GATE(0, "hclk_usb_peri", "hclk_peri", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(7), 9, GFLAGS),
+	GATE(0, "hclk_peri_ahb_arbi", "hclk_peri", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(7), 10, GFLAGS),
+	GATE(0, "hclk_emem", "hclk_peri", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(7), 12, GFLAGS),
+	GATE(0, "hclk_mem", "hclk_peri", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(7), 13, GFLAGS),
 	GATE(HCLK_NANDC0, "hclk_nandc0", "hclk_peri", 0, RK3288_CLKGATE_CON(7), 14, GFLAGS),
 	GATE(HCLK_NANDC1, "hclk_nandc1", "hclk_peri", 0, RK3288_CLKGATE_CON(7), 15, GFLAGS),
 	GATE(HCLK_TSP, "hclk_tsp", "hclk_peri", 0, RK3288_CLKGATE_CON(8), 8, GFLAGS),
@@ -671,7 +671,7 @@  static struct rockchip_clk_branch rk3288_clk_branches[] __initdata = {
 	GATE(0, "pmu_hclk_otg0", "hclk_peri", 0, RK3288_CLKGATE_CON(7), 5, GFLAGS),
 
 	/* pclk_peri gates */
-	GATE(0, "pclk_peri_matrix", "pclk_peri", 0, RK3288_CLKGATE_CON(6), 1, GFLAGS),
+	GATE(0, "pclk_peri_matrix", "pclk_peri", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(6), 1, GFLAGS),
 	GATE(PCLK_SPI0, "pclk_spi0", "pclk_peri", 0, RK3288_CLKGATE_CON(6), 4, GFLAGS),
 	GATE(PCLK_SPI1, "pclk_spi1", "pclk_peri", 0, RK3288_CLKGATE_CON(6), 5, GFLAGS),
 	GATE(PCLK_SPI2, "pclk_spi2", "pclk_peri", 0, RK3288_CLKGATE_CON(6), 6, GFLAGS),
@@ -707,22 +707,22 @@  static struct rockchip_clk_branch rk3288_clk_branches[] __initdata = {
 	GATE(PCLK_GPIO4, "pclk_gpio4", "pclk_pd_alive", 0, RK3288_CLKGATE_CON(14), 4, GFLAGS),
 	GATE(PCLK_GPIO5, "pclk_gpio5", "pclk_pd_alive", 0, RK3288_CLKGATE_CON(14), 5, GFLAGS),
 	GATE(PCLK_GPIO6, "pclk_gpio6", "pclk_pd_alive", 0, RK3288_CLKGATE_CON(14), 6, GFLAGS),
-	GATE(PCLK_GRF, "pclk_grf", "pclk_pd_alive", 0, RK3288_CLKGATE_CON(14), 11, GFLAGS),
-	GATE(0, "pclk_alive_niu", "pclk_pd_alive", 0, RK3288_CLKGATE_CON(14), 12, GFLAGS),
+	GATE(PCLK_GRF, "pclk_grf", "pclk_pd_alive", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(14), 11, GFLAGS),
+	GATE(0, "pclk_alive_niu", "pclk_pd_alive", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(14), 12, GFLAGS),
 
 	/* pclk_pd_pmu gates */
-	GATE(PCLK_PMU, "pclk_pmu", "pclk_pd_pmu", 0, RK3288_CLKGATE_CON(17), 0, GFLAGS),
-	GATE(0, "pclk_intmem1", "pclk_pd_pmu", 0, RK3288_CLKGATE_CON(17), 1, GFLAGS),
-	GATE(0, "pclk_pmu_niu", "pclk_pd_pmu", 0, RK3288_CLKGATE_CON(17), 2, GFLAGS),
-	GATE(PCLK_SGRF, "pclk_sgrf", "pclk_pd_pmu", 0, RK3288_CLKGATE_CON(17), 3, GFLAGS),
+	GATE(PCLK_PMU, "pclk_pmu", "pclk_pd_pmu", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(17), 0, GFLAGS),
+	GATE(0, "pclk_intmem1", "pclk_pd_pmu", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(17), 1, GFLAGS),
+	GATE(0, "pclk_pmu_niu", "pclk_pd_pmu", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(17), 2, GFLAGS),
+	GATE(PCLK_SGRF, "pclk_sgrf", "pclk_pd_pmu", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(17), 3, GFLAGS),
 	GATE(PCLK_GPIO0, "pclk_gpio0", "pclk_pd_pmu", 0, RK3288_CLKGATE_CON(17), 4, GFLAGS),
 
 	/* hclk_vio gates */
 	GATE(HCLK_RGA, "hclk_rga", "hclk_vio", 0, RK3288_CLKGATE_CON(15), 1, GFLAGS),
 	GATE(HCLK_VOP0, "hclk_vop0", "hclk_vio", 0, RK3288_CLKGATE_CON(15), 6, GFLAGS),
-	GATE(HCLK_VOP1, "hclk_vop1", "hclk_vio", 0, RK3288_CLKGATE_CON(15), 8, GFLAGS),
-	GATE(HCLK_VIO_AHB_ARBI, "hclk_vio_ahb_arbi", "hclk_vio", 0, RK3288_CLKGATE_CON(15), 9, GFLAGS),
-	GATE(HCLK_VIO_NIU, "hclk_vio_niu", "hclk_vio", 0, RK3288_CLKGATE_CON(15), 10, GFLAGS),
+	GATE(HCLK_VOP1, "hclk_vop1", "hclk_vio", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(15), 8, GFLAGS),
+	GATE(HCLK_VIO_AHB_ARBI, "hclk_vio_ahb_arbi", "hclk_vio", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(15), 9, GFLAGS),
+	GATE(HCLK_VIO_NIU, "hclk_vio_niu", "hclk_vio", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(15), 10, GFLAGS),
 	GATE(HCLK_VIP, "hclk_vip", "hclk_vio", 0, RK3288_CLKGATE_CON(15), 15, GFLAGS),
 	GATE(HCLK_IEP, "hclk_iep", "hclk_vio", 0, RK3288_CLKGATE_CON(15), 3, GFLAGS),
 	GATE(HCLK_ISP, "hclk_isp", "hclk_vio", 0, RK3288_CLKGATE_CON(16), 1, GFLAGS),
@@ -731,7 +731,7 @@  static struct rockchip_clk_branch rk3288_clk_branches[] __initdata = {
 	GATE(PCLK_MIPI_DSI1, "pclk_mipi_dsi1", "hclk_vio", 0, RK3288_CLKGATE_CON(16), 5, GFLAGS),
 	GATE(PCLK_MIPI_CSI, "pclk_mipi_csi", "hclk_vio", 0, RK3288_CLKGATE_CON(16), 6, GFLAGS),
 	GATE(PCLK_LVDS_PHY, "pclk_lvds_phy", "hclk_vio", 0, RK3288_CLKGATE_CON(16), 7, GFLAGS),
-	GATE(PCLK_EDP_CTRL, "pclk_edp_ctrl", "hclk_vio", 0, RK3288_CLKGATE_CON(16), 8, GFLAGS),
+	GATE(PCLK_EDP_CTRL, "pclk_edp_ctrl", "hclk_vio", CLK_IGNORE_UNUSED, RK3288_CLKGATE_CON(16), 8, GFLAGS),
 	GATE(PCLK_HDMI_CTRL, "pclk_hdmi_ctrl", "hclk_vio", 0, RK3288_CLKGATE_CON(16), 9, GFLAGS),
 	GATE(PCLK_VIO2_H2P, "pclk_vio2_h2p", "hclk_vio", 0, RK3288_CLKGATE_CON(16), 11, GFLAGS),
 
diff --git a/drivers/clk/rockchip/clk.c b/drivers/clk/rockchip/clk.c
index 1e68bff..dec6f8d6 100644
--- a/drivers/clk/rockchip/clk.c
+++ b/drivers/clk/rockchip/clk.c
@@ -246,9 +246,6 @@  void __init rockchip_clk_register_branches(
 					list->div_flags, &clk_lock);
 			break;
 		case branch_fraction_divider:
-			/* keep all gates untouched for now */
-			flags |= CLK_IGNORE_UNUSED;
-
 			clk = rockchip_clk_register_frac_branch(list->name,
 				list->parent_names, list->num_parents,
 				reg_base, list->muxdiv_offset, list->div_flags,
@@ -258,18 +255,12 @@  void __init rockchip_clk_register_branches(
 		case branch_gate:
 			flags |= CLK_SET_RATE_PARENT;
 
-			/* keep all gates untouched for now */
-			flags |= CLK_IGNORE_UNUSED;
-
 			clk = clk_register_gate(NULL, list->name,
 				list->parent_names[0], flags,
 				reg_base + list->gate_offset,
 				list->gate_shift, list->gate_flags, &clk_lock);
 			break;
 		case branch_composite:
-			/* keep all gates untouched for now */
-			flags |= CLK_IGNORE_UNUSED;
-
 			clk = rockchip_clk_register_branch(list->name,
 				list->parent_names, list->num_parents,
 				reg_base, list->muxdiv_offset, list->mux_shift,