Commit Graph

203 Commits

Author SHA1 Message Date
Xing Zheng
a45f9d41c9 clk: rockchip: mark aclk_emmc_noc as a critical clock on rk3399
We don't have code to handle any of the noc clocks in rk3399 and they're
all just listed as critical clocks.  Let's do the same for
aclk_emmc_noc.

Without this clock being marked as critical we have problems around
suspend/resume after commit 20c389e656 ("clk: rockchip: fix incorrect
aclk_emmc source gate bits on rk3399").  Before that change we were
presumably not actually gating any of these clocks because we were
setting the wrong gate.

Fixes: 20c389e656 ("clk: rockchip: fix incorrect aclk_emmc source gate bits on rk3399")
Signed-off-by: Xing Zheng <zhengxing@rock-chips.com>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2016-08-24 23:44:49 +02:00
Xing Zheng
4608d96fb4 clk: rockchip: fix incorrect GATE bits for {c, g}pll_aclk_perihp_src on rk3399
Sorry to refer incorrect clock diagram, we double check it that the bits
configuration of the Xpll_aclk_perihp_src need to be fixed:
bit 1 - shows aclk_perihp_cpll_src_en
bit 0 - shows aclk_perihp_gpll_src_en

Through the testing that plug/unplug the USB ethernet cable on the RK3399 kevin board.

1. the hclk_host0 and hclk_host1 are endpoint clocks:
cpll --> G5[1] --> aclk_perihp_cpll_src --\              |--> hclk_host0
                                          | --> ... ---> |
gpll --> G5[0] --> aclk_perihp_gpll_src --/              |--> hclk_host1

2. there is no clock below the cpll_aclk_perihp_src,
   and the hclk_hostX are below the gpll_aclk_perihp_src:
    pll_cpll                              1            1   800000000          0 0
       cpll                               7           19   800000000          0 0
          cpll_aclk_perihp_src            0            0   800000000          0 0
...
    pll_gpll                              1            1   594000000          0 0
       gpll                              10           10   594000000          0 0
          gpll_aclk_perihp_src            2            2   594000000          0 0
                hclk_perihp               5            5    74250000          0 0
                   hclk_host1_arb         2            2    74250000          0 0
                   hclk_host1             2            2    74250000          0 0
                   hclk_host0_arb         2            2    74250000          0 0
                   hclk_host0             2            2    74250000          0 0

3. by default, G5[0] and G5[1] are enabled:
localhost ~ # mem r 0xff760314
0x000003e0

4. close the G5[1] (aclk_perihp_cpll_src), and plug/unplug USB ethernet cable,
   the DUT still works well:
localhost ~ # mem w 0xff760314 0xffff03e2
localhost ~ # mem r 0xff760314
0x000003e2
plug/unplug, the work statue is ok

5. close the G5[0] (aclk_perihp_gpll_src), , and plug/unplug USB ethernet cable,
   the DUT will be crashed:
localhost ~ # mem w 0xff760314 0xffff03e1
localhost ~ # mem r 0xff760314
0x000003e1
plug/unplug, the DUT is crashed

Summary:
bit 1 - shows aclk_perihp_cpll_src_en
bit 0 - shows aclk_perihp_gpll_src_en

Fixes: 3bd14ae9da ("clk: rockchip: fix incorrect parent for rk3399's {c,g}pll_aclk_perihp_src")
Signed-off-by: Xing Zheng <zhengxing@rock-chips.com>

[here the clock-documentation in the manual was actually stating the wrong
bits and thus only Xing's testing above revealed the issue]
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2016-08-12 18:09:19 +02:00
Xing Zheng
20c389e656 clk: rockchip: fix incorrect aclk_emmc source gate bits on rk3399
Dues to incorrect diagram, we need to fix incorrect bits for
(c/g)pll_aclk_emmc_src:
cpll_aclk_emmc_src --> G6[13]
gpll_aclk_emmc_src --> G6[12]

Fixes: 115510053e ("clk: rockchip: add clock controller for the RK3399")
Signed-off-by: Xing Zheng <zhengxing@rock-chips.com>
Reviewed-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2016-08-12 10:04:52 +02:00
Chris Zhong
a3f457d963 clk: rockchip: fix rk3399 aclk_vio gate bit
Fix incorrect rk3399 aclk_vio gating bit, it should be 0, not 10.

Fixes: 115510053e ("clk: rockchip: add clock controller for the RK3399")
Signed-off-by: Chris Zhong <zyw@rock-chips.com>
Reviewed-by: Xing Zheng <zhengxing@rock-chips.com>
Reviewed-by: Guenter Roeck <groeck@chromium.org>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2016-08-11 23:05:06 +02:00
Stephen Boyd
582e2405b2 Placeholder for the rk3399 watchdog pclk, some newly exported
rk3228 clockids and a small fix for the not yet used spdif to
 displayport clock on the rk3399.
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Merge tag 'v4.8-rockchip-clk1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into clk-next

Pull rockchip clk driver updates from Heiko Stuebner:

Placeholder for the rk3399 watchdog pclk, some newly exported
rk3228 clockids and a small fix for the not yet used spdif to
displayport clock on the rk3399.

* tag 'v4.8-rockchip-clk1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
  clk: rockchip: fix incorrect rk3399 spdif-DPTX divider bits
  clk: rockchip: export rk3228 MAC clocks
  clk: rockchip: rename rk3228 sclk_macphy_50m to sclk_mac_extclk
  clk: rockchip: export rk3228 audio clocks
  clk: rockchip: include rk3228 downstream muxes into fractional dividers
  clk: rockchip: fix incorrect rk3228 clock registers
  clk: rockchip: add clock-ids for rk3228 MAC clocks
  clk: rockchip: add clock-ids for rk3228 audio clocks
  clk: rockchip: add a dummy clock for the watchdog pclk on rk3399
2016-07-01 17:30:42 -07:00
Xing Zheng
3770821fa3 clk: rockchip: fix incorrect rk3399 spdif-DPTX divider bits
The CLKSEL_CON32 bit_0 is controlled for spdif_8ch, not spdif_rec_dptx,
it should be bit_8, let's fix it.

Fixes: 115510053e ("clk: rockchip: add clock controller for the RK3399")
Reported-by: Chris Zhong <zyw@rock-chips.com>
Tested-by: Chris Zhong <zyw@rock-chips.com>
Signed-off-by: Xing Zheng <zhengxing@rock-chips.com>
Cc: stable@vger.kernel.org
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2016-07-01 01:50:17 +02:00
Xing Zheng
6e3732a2be clk: rockchip: export rk3228 MAC clocks
This patch exports related MAC clocks for dts reference.

Signed-off-by: Xing Zheng <zhengxing@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2016-07-01 01:50:11 +02:00
Xing Zheng
09f684226d clk: rockchip: rename rk3228 sclk_macphy_50m to sclk_mac_extclk
The sclk_macphy_50m is confusing, the sclk_mac_extclk describes
a external clock  clearly.

Signed-off-by: Xing Zheng <zhengxing@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2016-07-01 01:50:06 +02:00
Xing Zheng
a45c072bb4 clk: rockchip: export rk3228 audio clocks
This patch exports related i2s/spdif clocks for dts reference.

Signed-off-by: Xing Zheng <zhengxing@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2016-07-01 01:50:02 +02:00
Xing Zheng
cb87df58bc clk: rockchip: include rk3228 downstream muxes into fractional dividers
During the initial conversion to the newly introduced combined fractional
dividers+muxes the rk3228 clocks were left out, so convert them now.

Signed-off-by: Xing Zheng <zhengxing@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2016-07-01 01:49:31 +02:00
Xing Zheng
67de7901c4 clk: rockchip: fix incorrect rk3228 clock registers
Due to copy and paste carelessly, RK3288_CLKxxx references are incorrect,
we need to fix them.

Signed-off-by: Xing Zheng <zhengxing@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2016-06-22 00:55:03 +02:00
Shawn Lin
62d0e71df0 clk: rockchip: release io resource when failing to init clk on rk3399
We should call iounmap to relase reg_base since it's not going
to be used any more if failing to init clk.

This was missing on the newly added rk3399 clock tree.

Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2016-06-03 15:36:49 +02:00
Xing Zheng
26e0ee1c62 clk: rockchip: add a dummy clock for the watchdog pclk on rk3399
Like rk3288, the pclk supplying the watchdog is controlled via the
SGRF register area. Additionally the SGRF isn't even writable in
every boot mode.

But still the clock control is available and in the future someone
might want to use it. Therefore define a simple clock for the time
being so that the watchdog driver can read its rate.

Signed-off-by: Xing Zheng <zhengxing@rock-chips.com>
Reviewed-by: Stephen Barber <smbarber@chromium.org>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2016-05-30 09:44:26 +02:00
Xing Zheng
3183c0d519 clk: rockchip: fix cpuclk registration error handling
It maybe due to a copy-paste error the error handing should be
cclk not clk when checking if the cpuclk registration succeeded.

Reported-by: Lin Huang <lin.huang@rock-chips.com>
Signed-off-by: Xing Zheng <zhengxing@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2016-05-30 09:40:23 +02:00
Douglas Anderson
4715f81afc clk: rockchip: Revert "clk: rockchip: reset init state before mmc card initialization"
This reverts commit 7a03fe6f48 ("clk: rockchip: reset init state
before mmc card initialization").

Though not totally obvious from the commit message nor from the source
code, that commit appears to be trying to reset the "_drv" MMC clocks to
90 degrees (note that the "_sample" MMC clocks have a shift of 0 so are
not touched).

The major problem here is that it doesn't properly reset things.  The
phase is a two bit field and the commit only touches one of the two
bits.  Thus the commit had the following affect:
- phase   0  => phase  90
- phase  90  => phase  90
- phase 180  => phase 270
- phase 270  => phase 270

Things get even weirder if you happen to have a bootloader that was
actually using delay elements (should be no reason to, but you never
know), since those are additional bits that weren't touched by the
original patch.

This is unlikely to be what we actually want.  Checking on rk3288-veyron
devices, I can see that the bootloader leaves these clocks as:
- emmc:  phase 180
- sdmmc: phase 90
- sdio0: phase 90

Thus on rk3288-veyron devices the commit we're reverting had the effect
of changing the eMMC clock to phase 270.  This probably explains the
scattered reports I've heard of eMMC devices not working on some veyron
devices when using the upstream kernel.

The original commit was presumably made because previously the kernel
didn't touch the "_drv" phase at all and relied on whatever value was
there when the kernel started.  If someone was using a bootloader that
touched the "_drv" phase then, indeed, we should have code in the kernel
to fix that.  ...and also, to get ideal timings, we should also have the
kernel change the phase depending on the speed mode.  In fact, that's
the subject of a recent patch I posted at
<https://patchwork.kernel.org/patch/9075141/>.

Ideally, we should take both the patch posted to dw_mmc and this
revert.  Since those will likely go through different trees, here I
describe behavior with the combos:

1. Just this revert: likely will fix rk3288-veyron eMMC on some devices
   + other cases; might break someone with a strange bootloader that
   sets the phase to 0 or one that uses delay elements (pretty
   unpredicable what would happen in that case).
2. Just dw_mmc patch: fixes everyone.  Effectly the dw_mmc patch will
   totally override the broken patch and fix everything.
3. Both patches: fixes everyone.  Once dw_mmc is initting properly then
   any defaults from the clock code doesn't mattery.

Fixes: 7a03fe6f48 ("clk: rockchip: reset init state before mmc card initialization")
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Shawn Lin <shawn.lin@rock-chips.com>

[emmc and sdmmc still work on all current boards in mainline after this
revert, so they should take precedence over any out-of-tree board that
will hopefully again get fixed with the better upcoming dw_mmc change.]
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2016-05-30 09:40:23 +02:00
Xing Zheng
3bd14ae9da clk: rockchip: fix incorrect parent for rk3399's {c,g}pll_aclk_perihp_src
There was a typo, swapping 'c' <--> 'g'.

Signed-off-by: Xing Zheng <zhengxing@rock-chips.com>
Signed-off-by: Brian Norris <briannorris@chromium.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2016-05-30 09:40:23 +02:00
Brian Norris
176df69cb0 clk: rockchip: mark rk3399 GIC clocks as critical
We never want to kill the GIC.

Noticed when making other clock fixups, and seeing the newly-constructed
clock tree try to disable cpll, where we had this parent structure:

  aclk_gic <------\
                  |--- aclk_gic_pre <-- cpll <-- pll_cpll
  aclk_gic_noc <--/

Signed-off-by: Brian Norris <briannorris@chromium.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2016-05-30 09:40:23 +02:00
Heiko Stuebner
595144c114 clk: rockchip: initialize flags of clk_init_data in mmc-phase clock
The flags element of clk_init_data was never initialized for mmc-
phase-clocks resulting in the element containing a random value
and thus possibly enabling unwanted clock flags.

Fixes: 89bf26cbc1 ("clk: rockchip: Add support for the mmc clock phases using the framework")
Cc: stable@vger.kernel.org
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2016-05-30 09:40:23 +02:00
Stephen Boyd
5707291c6c Merge tag 'v4.7-rockchip-clk4' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into clk-next
Pull rockchip clk updates from Heiko Stuebner:

Another small rk3399 fixup as well as simplifications around
our handling of the General-Register-Files syscon.

* tag 'v4.7-rockchip-clk4' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
  clk: rockchip: drop old_rate calculation on pll rate changes
  clk: rockchip: simplify GRF handling in pll clocks
  clk: rockchip: lookup General Register Files in rockchip_clk_init
  clk: rockchip: fix the rk3399 sdmmc sample / drv name
2016-05-12 14:48:22 -07:00
Heiko Stuebner
7e5385dc72 clk: rockchip: drop old_rate calculation on pll rate changes
Previously when everything happened in the set_rate callbacks itself we
needed the old_rate value for the possible rate rollback, so that made
it easy to also use it in the debug output.

Now with the param-handling being done in separate functions, reading and
recalculating the current pll rate only to use it in a debug message that
won't get displayed in regular cases anyway is quite a waste.

Therefore drop that value from the debug output. In the worst case that
previous rate will have been displayed on the rate change before.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2016-05-09 16:04:39 +02:00
Heiko Stuebner
c9c3c6eecc clk: rockchip: simplify GRF handling in pll clocks
With the previous commit, the clock drivers now know at init time if the
GRF regmap is available. That means if it isn't available then, it also
won't become available later and we can therefore switch PLLs, that need
the GRF for the lock-status, to read-only mode - similar behaviour as the
aborting of rate changes we did before.

This saves some conditionals on every rate change and we can also drop
the rockchip_clk_get_grf function completely.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2016-05-09 16:04:15 +02:00
Heiko Stuebner
6f339dc271 clk: rockchip: lookup General Register Files in rockchip_clk_init
In the distant past syscons were initialized pretty late and weren't
available at the time the clock init ran. As the GRF is mainly needed
for PLL lock-status checking, we had this lazy init that tried to grab
the syscon on PLL rate changes and denied these changes if it was not
available.

These days syscons are available very early and recent addition to
rockchip clocks, like the PLL clk_init actually also rely on them
being available at that time, so there is no need to keep that lazy
init around, as it will also result in some more simplifications in
other parts of the clock-code.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2016-05-09 16:04:11 +02:00
Douglas Anderson
84752e8d8a clk: rockchip: fix the rk3399 sdmmc sample / drv name
The rk3399 clock table had a simple typo in it, calling the SDMMC sample
and drive clocks by the wrong name.  Fix this minor typo.

Signed-off-by: Douglas Anderson <dianders@chromium.org>
Tested-by: Brian Norris <briannorris@chromium.org>
Acked-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2016-05-08 22:40:32 +02:00
Stephen Boyd
5569aedf1d A spelling fix and a bunch of rk3399 clock fixes.
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Merge tag 'v4.7-rockchip-clk3' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into clk-next

Pull rockchip clk updates from Heiko Stuebner:

A spelling fix and a bunch of rk3399 clock fixes.

* tag 'v4.7-rockchip-clk3' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
  clk: rockchip: fix the rk3399 cifout clock
  clk: rockchip: drop unnecessary CLK_IGNORE_UNUSED flags from rk3399
  clk: rockchip: add some frequencies on the rk3399 PLL table
  clk: rockchip: assign more necessary rk3399 clock ids
  clk: rockchip: export some necessary rk3399 clock ids
  clk: rockchip: rename rga clock-id on rk3399
  clk: rockchip: add general gpu soft-reset on rk3399
  clk: rockchip: fix the gate bit for i2c4 and i2c8 on rk3399
  clk: rockchip: fix of spelling mistake on unsuccessful in pll clock type
2016-05-02 16:43:03 -07:00
Xing Zheng
fd8bc82933 clk: rockchip: fix the rk3399 cifout clock
The cifout clock is incorrect due to the manual error, we need to
fix it.

Signed-off-by: Xing Zheng <zhengxing@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2016-04-25 22:54:51 +02:00
Xing Zheng
50961e8314 clk: rockchip: drop unnecessary CLK_IGNORE_UNUSED flags from rk3399
We don't need to many clocks enable after startup, to reduce some
power consumption.

Signed-off-by: Xing Zheng <zhengxing@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2016-04-25 22:52:26 +02:00
Xing Zheng
aa2897ceb7 clk: rockchip: add some frequencies on the rk3399 PLL table
This patch add some necessary frequencies for the RK3399 clock.

Signed-off-by: Xing Zheng <zhengxing@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2016-04-25 22:51:21 +02:00
Xing Zheng
3f92a05440 clk: rockchip: assign more necessary rk3399 clock ids
Assign newly added clock ids.

Signed-off-by: Xing Zheng <zhengxing@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2016-04-25 22:49:13 +02:00
Xing Zheng
f3d40914d3 clk: rockchip: fix the gate bit for i2c4 and i2c8 on rk3399
The gate bits of the i2c4 and i2c8 are incorrect due to the manual
error, we need to fix them.

Signed-off-by: Xing Zheng <zhengxing@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2016-04-25 21:52:32 +02:00
Colin Ian King
b8199ff31f clk: rockchip: fix of spelling mistake on unsuccessful in pll clock type
fix spelling mistake, unsucessful -> unsuccessful

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2016-04-25 09:34:03 +02:00
Stephen Boyd
0f05db651d Fix quite some checkpatch warnings in the newly added
rk3399 header and also in the clock code itself.
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Merge tag 'v4.7-rockchip-clk2' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into clk-next

Pull some checkpatch silencers from Heiko Stuebner:

Fix quite some checkpatch warnings in the newly added
rk3399 header and also in the clock code itself.

* tag 'v4.7-rockchip-clk2' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
  clk: rockchip: fix checkpatch warning in core code
  clk: rockchip: drop unnecessary header comment
  clk: rockchip: reign in some overly long lines in the rk3399 controller
  clk: rockchip: fix checkpatch errors in rk3399 dt-binding header
2016-04-20 11:41:37 -07:00
Heiko Stuebner
03ae174786 clk: rockchip: fix checkpatch warning in core code
We seem to have accumulated a bunch of checkpatch warnings, with mainly
overlong lines and two unnecessary allocation error messages.
Most were introduced with the recent multi-controller-support but some
were quite a bit older.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2016-04-20 09:53:39 +02:00
Heiko Stuebner
2b4e628648 clk: rockchip: drop unnecessary header comment
The internal clk header did contain a comment indicating that some of the
defined registers were shared over multiple clock controller variants.
In recent times, it was simply extended all the time and stopped providing
any meaningful information, so drop it and it's overlong line.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2016-04-19 21:17:55 +02:00
Heiko Stuebner
995d3fdeb2 clk: rockchip: reign in some overly long lines in the rk3399 controller
We allow overlong lines in the array portitions describing the clock
trees to ease readability by having each element always at the same
position. But the rest of the code should honor the 80 char limit.

Fix the newly added rk3399 clock code to respect that.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2016-04-19 21:07:01 +02:00
Stephen Boyd
ab98e20af5 This is first big chunk of Rockchip clock-related changes for 4.7.
Main change is probably the added support for the new rk3399 soc
 and necessary infrastructure changes surrounding it.
 
 The biggest chunk is probably that clock code is now able to
 handle multiple clock providers in one system, as the rk3399
 has two of those. A general one and another smaller one in a
 separate power domain. The rk3399 also uses another new pll type.
 Thankfully it just fits nicely into our current structure.
 It also needs some parts like the cpuclk mux parameters to be
 a bit more flexible and an new fractional divider subtype without
 gate.
 
 Apart from this big change we have some more fixes and removal
 of forgotten variables.
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Merge tag 'v4.7-rockchip-clk1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into clk-next

Pull rockchip clk updates from Heiko Stuebner:

This is first big chunk of Rockchip clock-related changes for 4.7.

Main change is probably the added support for the new rk3399 soc
and necessary infrastructure changes surrounding it.

The biggest chunk is probably that clock code is now able to
handle multiple clock providers in one system, as the rk3399
has two of those. A general one and another smaller one in a
separate power domain. The rk3399 also uses another new pll type.
Thankfully it just fits nicely into our current structure.
It also needs some parts like the cpuclk mux parameters to be
a bit more flexible and an new fractional divider subtype without
gate.

Apart from this big change we have some more fixes and removal
of forgotten variables.

* tag 'v4.7-rockchip-clk1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
  clk: rockchip: add clock controller for the RK3399
  dt-bindings: add bindings for rk3399 clock controller
  clk: rockchip: add dt-binding header for rk3399
  clk: rockchip: release io resource when failing to init clk
  clk: rockchip: remove redundant checking of device_node
  clk: rockchip: fix warning reported by kernel-doc
  clk: rockchip: remove mux_core_reg from rockchip_cpuclk_reg_data
  clk: rockchip: add new pll-type for rk3399 and similar socs
  clk: rockchip: Add support for multiple clock providers
  clk: rockchip: allow varying mux parameters for cpuclk pll-sources
  clk: rockchip: add a COMPOSITE_FRACMUX_NOGATE type
2016-04-15 15:47:54 -07:00
Philipp Zabel
3fb950fea6 clk: rockchip: Make reset_control_ops const
The rockchip_softrst_ops structure is never modified. Make it const.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
2016-03-29 16:29:46 -07:00
Xing Zheng
115510053e clk: rockchip: add clock controller for the RK3399
Add the clock tree definition for the new RK3399 SoC.

Signed-off-by: Xing Zheng <zhengxing@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2016-03-28 14:57:07 +02:00
Shawn Lin
1d003eb080 clk: rockchip: release io resource when failing to init clk
We should call iounmap to relase reg_base since it's not going
to be used any more if failing to init clk.

Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2016-03-27 13:03:35 +02:00
Shawn Lin
ff1ae20961 clk: rockchip: remove redundant checking of device_node
rockchip_clk_of_add_provider is used by sub-clk driver which
already call of_iomap before calling it. If device_node does
not exist, of_iomap returns NULL which will fail to init the
sub-clk driver. So really it's redundant.

Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2016-03-27 13:03:35 +02:00
Shawn Lin
2af2544d60 clk: rockchip: fix warning reported by kernel-doc
./scripts/kernel-doc -man -v drivers/clk/rockchip/clk.h > /dev/null

drivers/clk/rockchip/clk.h:133: warning: missing initial short
description on line:
 * struct rockchip_clk_provider: information about clock provider
drivers/clk/rockchip/clk.h:133: info: Scanning doc for struct
drivers/clk/rockchip/clk.h:164: warning: missing initial short
description on line:
 * struct rockchip_pll_clock: information about pll clock
drivers/clk/rockchip/clk.h:164: info: Scanning doc for struct
drivers/clk/rockchip/clk.h:194: warning: No description found for
parameter 'parent_names'
drivers/clk/rockchip/clk.h:194: warning: No description found for
parameter 'num_parents'
drivers/clk/rockchip/clk.h:194: warning: Excess struct/union/enum/typedef
member 'parent_name' description in 'rockchip_pll_clock'
drivers/clk/rockchip/clk.h:235: warning: missing initial short
description on line:
 * struct rockchip_cpuclk_reg_data: describes register offsets and
masks of the cpuclock

Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2016-03-27 13:03:35 +02:00
Shawn Lin
cb3abdd628 clk: rockchip: remove mux_core_reg from rockchip_cpuclk_reg_data
mux_core_reg isn't been used anywhere, let's remove it.

Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2016-03-27 13:03:34 +02:00
Xing Zheng
b40baccd23 clk: rockchip: add new pll-type for rk3399 and similar socs
The rk3399's pll and clock are similar with rk3036's, it different
with base on the rk3066(rk3188, rk3288, rk3368 use it), there are
different adjust foctors and control registers, so these should be
independent and separate from the series of rk3066s.

Signed-off-by: Xing Zheng <zhengxing@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2016-03-27 13:03:34 +02:00
Xing Zheng
ef1d9feecc clk: rockchip: Add support for multiple clock providers
There are need to support Multi-CRUs probability in future, but
it is not supported on the current Rockchip Clock Framework.

Therefore, this patch add support a provider as the parameter
handler when we call the clock register functions for per CRU.

Signed-off-by: Xing Zheng <zhengxing@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2016-03-27 13:03:34 +02:00
Xing Zheng
268aebaa24 clk: rockchip: allow varying mux parameters for cpuclk pll-sources
Thers are only two parent PLLs that APLL and GPLL for core on the
previous SoCs (RK3066/RK3188/RK3288/RK3368). Hence, we set fixed
GPLL as alternate parent when core is switching freq.

Since RK3399 big.LITTLE architecture, we need to select and adapt
more PLLs (ALPLL/ABPLL/DPLL/GPLL) sources.

Signed-off-by: Xing Zheng <zhengxing@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2016-03-27 13:03:33 +02:00
Xing Zheng
9387bfd19b clk: rockchip: add a COMPOSITE_FRACMUX_NOGATE type
Because there are some frac clock mux nodes don't have a gate node on
the RK3399.

Signed-off-by: Xing Zheng <zhengxing@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2016-03-27 00:53:20 +01:00
Linus Torvalds
33c1f638a0 The clk changes for this release cycle are mostly dominated by
new device support in terms of LoC, but there has been some cleanup
 in the core as well as the usual minor clk additions to various
 drivers.
 
 Core:
 
  - parent tracking has been simplified
 
  - CLK_IS_ROOT is now a no-op flag, cleaning up drivers has started
 
  - of_clk_init() doesn't consider disabled DT nodes anymore
 
  - clk_unregister() had an error path bug squashed
 
  - of_clk_get_parent_count() has been fixed to only return unsigned ints
 
  - HAVE_MACH_CLKDEV is removed now that the last arch user (ARM) is gone
 
 New Drivers:
 
  - NXP LPC18xx creg
 
  - QCOM IPQ4019 GCC
 
  - TI dm814x ADPLL
 
  - i.MX6QP
 
 Updates:
 
  - Cyngus audio clks found on Broadcom iProc devices
 
  - Non-critical fixes for BCM2385 PLLs
 
  - Samsung exynos5433 updates for clk id errors, HDMI support,
    suspend/resume simplifications
 
  - USB, CAN, LVDS, and FCP clks on shmobile devices
 
  - sunxi got support for more clks on new SoCs and went through a minor
    refactoring/rewrite to use a simpler factor clk construct
 
  - rockchip added some more clk ids and added suport for fraction dividers
 
  - QCOM GDSCs in msm8996
 
  - A new devm helper to make adding custom actions simpler (acked by Greg)
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Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux

Pull clk updates from Stephen Boyd:
 "The clk changes for this release cycle are mostly dominated by new
  device support in terms of LoC, but there has been some cleanup in the
  core as well as the usual minor clk additions to various drivers.

  Core:
   - parent tracking has been simplified
   - CLK_IS_ROOT is now a no-op flag, cleaning up drivers has started
   - of_clk_init() doesn't consider disabled DT nodes anymore
   - clk_unregister() had an error path bug squashed
   - of_clk_get_parent_count() has been fixed to only return unsigned ints
   - HAVE_MACH_CLKDEV is removed now that the last arch user (ARM) is gone

  New Drivers:
   - NXP LPC18xx creg
   - QCOM IPQ4019 GCC
   - TI dm814x ADPLL
   - i.MX6QP

  Updates:
   - Cyngus audio clks found on Broadcom iProc devices
   - Non-critical fixes for BCM2385 PLLs
   - Samsung exynos5433 updates for clk id errors, HDMI support,
     suspend/resume simplifications
   - USB, CAN, LVDS, and FCP clks on shmobile devices
   - sunxi got support for more clks on new SoCs and went through a
     minor refactoring/rewrite to use a simpler factor clk construct
   - rockchip added some more clk ids and added suport for fraction
     dividers
   - QCOM GDSCs in msm8996
   - A new devm helper to make adding custom actions simpler (acked by Greg)"

* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (197 commits)
  clk: bcm2835: fix check of error code returned by devm_ioremap_resource()
  clk: renesas: div6: use RENESAS for #define
  clk: renesas: Rename header file renesas.h
  clk: max77{686,802}: Remove CLK_IS_ROOT
  clk: versatile: Remove CLK_IS_ROOT
  clk: sunxi: Remove use of variable length array
  clk: fixed-rate: Remove CLK_IS_ROOT
  clk: qcom: Remove CLK_IS_ROOT
  doc: dt: add documentation for lpc1850-creg-clk driver
  clk: add lpc18xx creg clk driver
  clk: lpc32xx: fix compilation warning
  clk: xgene: Add missing parenthesis when clearing divider value
  clk: mb86s7x: Remove CLK_IS_ROOT
  clk: x86: Remove clkdev.h and clk.h includes
  clk: x86: Remove CLK_IS_ROOT
  clk: mvebu: Remove CLK_IS_ROOT
  clk: renesas: move drivers to renesas directory
  clk: si5{14,351,70}: Remove CLK_IS_ROOT
  clk: scpi: Remove CLK_IS_ROOT
  clk: s2mps11: Remove CLK_IS_ROOT
  ...
2016-03-23 06:06:45 -07:00
Linus Torvalds
8c6d4082fc ARM: SoC 64-bit changes for v4.6
Here's our branch of ARM64 contents for this merge window, now
 containing all ARM64 changes other than device tree files.
 
 - Various new platforms get added
   - Allwinner A64 SoC
   - Annapurna Labs Alpine SoCs
   - Broadcom Vulcan
   - Marvell Armada 3700 SoCs
   - Amlogic S905
 
 - Various defconfig changes to enable platform specific drivers
 
 This branch includes the clk git tree to resolve a build-time
 dependency.
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Merge tag 'armsoc-arm64' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC 64-bit changes from Arnd Bergmann:
 "Here's our branch of ARM64 contents for this merge window, now
  containing all ARM64 changes other than device tree files.

   - Various new platforms get added:
      * Allwinner A64 SoC
      * Annapurna Labs Alpine SoCs
      * Broadcom Vulcan
      * Marvell Armada 3700 SoCs
      * Amlogic S905

   - Various defconfig changes to enable platform specific drivers

  This branch includes the clk git tree to resolve a build-time
  dependency"

* tag 'armsoc-arm64' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (48 commits)
  arm64: defconfig: Increase MMC_BLOCK_MINORS to 16
  arm64: defconfig: Add Qualcomm sdhci and restart functionality
  ARM64: Enable Amlogic Meson GXBaby platform
  arm64: defconfig: Enable Samsung MFD and related configs
  arm64: alpine: select the Alpine MSI controller driver
  arm64: defconfig: enable the Alpine family
  arm64: add Alpine SoC family
  arm64: defconfig: Enable exynos thermal config
  arm64: add defconfig options for Allwinner SoCs
  arm64: defconfig: Enable DesignWare APB GPIO controller
  arm64: defconfig: Add Renesas R-Car Gen3 USB 2.0 phy driver support
  arm64: EXYNOS: Consolidate ARCH_EXYNOS7 symbol into ARCH_EXYNOS
  clk: samsung: Don't build ARMv8 clock drivers on ARMv7
  MAINTAINERS: Add entry for Broadcom Vulcan SoC
  arm64: cputype info for Broadcom Vulcan
  arm64: Broadcom Vulcan support
  arm64: defconfig: Add Broadcom Vulcan to defconfig
  arm64: update ARCH_MVEBU for Marvell Armada 7K/8K support
  Documentation: arm: add Marvell Armada 7K and 8K families
  Documentation: arm: add link to Armada 38x Functional Spec
  ...
2016-03-20 15:08:45 -07:00
Heiko Stuebner
2c6fae2501 clk: rockchip: associate SCLK_MAC_PLL and disable reparenting on rk3036
The emac needs constant and very specific rate but the possible PLL-sources
are very limited, so we expect the PLL source to be set manually on per
board and don't want it to get changed in an automatic way later.
So add the necessary clock-id and disable reparenting on set_rate calls.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Heiko Stuebner <heiko@sntech.de>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Cc: linux-clk@vger.kernel.org

Signed-off-by: Caesar Wang <wxt@rock-chips.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-16 19:28:02 -04:00
Xing Zheng
e764b93924 clk: rockchip: associate the rk3036 HCLK_EMAC clock-id
Associate the new clock id the clock.

Signed-off-by: Xing Zheng <zhengxing@rock-chips.com>
Signed-off-by: Caesar Wang <wxt@rock-chips.com>
Cc: Xing Zheng <zhengxing@rock-chips.com>
Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Heiko Stuebner <heiko@sntech.de>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Cc: linux-clk@vger.kernel.org
Cc: linux-rockchip@lists.infradead.org
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-16 19:28:01 -04:00
Stephen Boyd
37655fae0c Inclusion of the rk3368 fractional dividers into our handling scheme,
fixes for missing error-handling in mmc-phase, inverters and cpu-clocks
 and some more clock-ids.
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Merge tag 'v4.6-rockchip-clk2' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into clk-next

Pull second batch of rockchip clk updates from Heiko Stuebner:

Inclusion of the rk3368 fractional dividers into our handling scheme,
fixes for missing error-handling in mmc-phase, inverters and cpu-clocks
and some more clock-ids.

* tag 'v4.6-rockchip-clk2' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
  clk: rockchip: include downstream muxes into fractional dividers on rk3368
  clk: rockchip: set the clock ids for RK3228 HDMI
  clk: rockchip: set the clock ids for RK3228 VOP
  clk: rockchip: add the tsadc clocks found on rk3228 SoCs
  clk: rockchip: add the new clock ids for RK3228 HDMI
  clk: rockchip: add the new clock ids for RK3228 VOP
  clk: rockchip: add id of the tsadc clock found on rk3228 SoCs
  clk: rockchip: fix coding style for clk-cpu.c
  clk: rockchip: don't return NULL when registering mmc branch fails
  clk: rockchip: don't return NULL when registering inverter fails
  clk: rockchip: check grf when waiting pll lock
  clk: rockchip: disable alt_parent clk in err cases when registering cpuclk
2016-03-04 09:36:29 -08:00