Commit graph

121 commits

Author SHA1 Message Date
Jagan Teki
96993d7c35 clk: rk3399: Set empty for HCLK_SD assigned-clocks
Due to v5.7-rc1 sync the SD controller nodes in rk3399.dtsi
have HCLK_SD assigned-clocks which are usually required for
Linux and don't require to handle them in U-Boot.

 assigned-clocks = <&cru HCLK_SD>;

So, mark them as empty in clock otherwise device probe on
those SD controllers would fail.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
2020-05-01 18:32:56 +08:00
Jagan Teki
b1bcd61665 clk: rk3399: Set empty for vopl assigned-clocks
During vidconsole probe, the device probe will try to
check whether the assigned clocks on that video console
node is initialized or not? and return an error if not.

But, unlike Linux U-Boot won't require to handle these
vopl assigned-clocks since core clocks are enough to
handle the video out to process.

So, mark them as empty in set_rate to satisfy clk_set_defaults
so-that probe happened properly.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
Tested-by: Peter Robinson <pbrobinson@gmail.com>
2020-04-02 15:44:56 +02:00
Simon Glass
336d4615f8 dm: core: Create a new header file for 'compat' features
At present dm/device.h includes the linux-compatible features. This
requires including linux/compat.h which in turn includes a lot of headers.
One of these is malloc.h which we thus end up including in every file in
U-Boot. Apart from the inefficiency of this, it is problematic for sandbox
which needs to use the system malloc() in some files.

Move the compatibility features into a separate header file.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-02-05 19:33:46 -07:00
Simon Glass
61b29b8268 dm: core: Require users of devres to include the header
At present devres.h is included in all files that include dm.h but few
make use of it. Also this pulls in linux/compat which adds several more
headers. Drop the automatic inclusion and require files to include devres
themselves. This provides a good indication of which files use devres.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Anatolij Gustschin <agust@denx.de>
2020-02-05 19:33:46 -07:00
Jagan Teki
b52a199e32 arm: rockchip: Add common cru.h
Few of the rockchip family SoC atleast rk3288,
rk3399 are sharing some cru register bits so
adding common code between these SoC families
would require to include both cru include files
that indeed resulting function declarations error.

So, create a common cru include as cru.h then
include the rk3399 arch cru include file and move
the common cru register bit definitions into it.

The rest of rockchip cru files will add it in future.

Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
2020-01-30 11:44:01 +08:00
Finley Xiao
fe9efbca7b rockchip: clk: Add clk driver for rk3308
Add clk controller driver for RK3308 SOC.

This patch depends on Elaine's pll patch[0].

[0]http://patchwork.ozlabs.org/patch/1183718/

Signed-off-by: Andy Yan <andy.yan@rock-chips.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
2019-11-17 17:22:53 +08:00
Elaine Zhang
bbda2ed584 rockchip: clk: pll: add common pll setting funcs
Common PLL setup function, compatible with different SOC.
Mainly for the subsequent new SOC use.

Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
2019-11-17 17:22:53 +08:00
Heiko Stuebner
a5ada25e42 rockchip: clk: fix wrong CONFIG_IS_ENABLED handling
CONFIG_IS_ENABLED() needs the config name like used in Kconfig, so
without the leading CONFIG_. The clock drivers all wrongly check for
CONFIG_RESET_ROCKCHIP, fix that

Signed-off-by: Heiko Stuebner <heiko.stuebner@theobroma-systems.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
2019-11-17 17:22:53 +08:00
Heiko Stuebner
a04f6fd17f rockchip: clk: rv1108: remove duplicate reset init
rockchip_reset_bind() already does the needed init for the reset
registers, only referenced the wrong cru structure.

So we can get rid of the open-coded reset init and just fix
the correct cru reference.

Signed-off-by: Heiko Stuebner <heiko.stuebner@theobroma-systems.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
2019-11-17 17:22:53 +08:00
Kever Yang
d49a526750 rockchip: clk: add px30 clock driver
The px30 contains 2 separate clock controllers, pmucru and cru.
Add drivers for them.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko.stuebner@theobroma-systems.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
2019-11-17 17:23:07 +08:00
Simon South
2cbdb6e051 clk: rockchip: rk3328: Configure CPU clock
Add a call to rk3328_configure_cpu() during initialization to set the
CPU-clock frequency.

Signed-off-by: Simon South <simon@simonsouth.net>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
2019-11-10 20:40:20 +08:00
Kever Yang
445f85fc8e rockchip: clk: rk3399: remove clk_enable()
There is no real driver for clk enable/disable now, and we actually
don't need it now, remove it so that not waste CPU cycles and code size.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
2019-09-11 16:16:12 +08:00
Kever Yang
7be113ba79 rockchip: clk: rk3368: remove clk_enable()
There is no real driver for clk enable/disable now, and we actually
don't need it now, remove it so that not waste CPU cycles and code size.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
2019-09-11 16:16:12 +08:00
Kever Yang
899c3b3523 rockchip: clk: rk3328: remove clk_enable()
There is no real driver for clk enable/disable now, and we actually
don't need it now, remove it so that not waste CPU cycles and code size.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
2019-09-11 16:16:12 +08:00
Kever Yang
c7ed19047e rockchip: clk: rk3288: remove clk_enable()
There is no real driver for clk enable/disable now, and we actually
don't need it now, remove it so that not waste CPU cycles and code size.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
2019-09-11 16:16:12 +08:00
Kever Yang
2fcff365e0 rockchip: clk: rk3328: add clk_enable ops for HCLK_HOST0
Required to successfully probe the ehci generic driver

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
2019-08-23 15:27:40 +08:00
Kever Yang
84a6a27ae3 rockchip: rk3188: init CPU freq in clock driver
Init CPU frquency in clock driver instead of in SPL board file,
this will help for use common board file later.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
2019-07-29 10:25:27 +08:00
Jagan Teki
f556d75aed clk: rockchip: rk3399: Set 400MHz ddr clock
Add support for setting 400MHz ddr clock.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Signed-off-by: YouMin Chen <cym@rock-chips.com>
Reviewed-by: Kever Yang <Kever.yang@rock-chips.com>
2019-07-21 00:00:25 +08:00
Jagan Teki
0956568637 clk: rockchip: rk3399: Set 50MHz ddr clock
Add support for setting 50MHz ddr clock.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Signed-off-by: YouMin Chen <cym@rock-chips.com>
Reviewed-by: Kever Yang <Kever.yang@rock-chips.com>
2019-07-21 00:00:22 +08:00
Jagan Teki
dd7dfa217e clk: rockchip: rk3399: Fix check patch warnings and checks
- CHECK: spaces preferred around that '*'
- CHECK: spaces preferred around that '/'
- CHECK: space preferred before that '|'
- WARNING: macros should not use a trailing semicolon
- CHECK: Unnecessary parentheses around 'fbdiv <= min_fbdiv'
- CHECK: Unnecessary parentheses around 'parent->id == SCLK_MAC'
- CHECK: Unnecessary parentheses around 'parent->dev == clk->dev'
- WARNING: line over 80 characters
- CHECK: Prefer kernel type 'u8' over 'uint8_t'
- Add proper macro definitions arrangements

Note: there are still line over 80 characters and other warnings but
fixing those making code look unreadable, so I kept it as it is.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Reviewed-by: Kever Yang <Kever.yang@rock-chips.com>
2019-07-19 11:11:09 +08:00
Mark Kettenis
555ceca088 rockchip: clk: rk3399: handle clk_enable requests for USB3
The "simple" OF glue layer for the Designware USB3 core enables
all refernced clocks.  These need to be need to be implemented
otherwise the driver fails to probe.  A dummy implementation
that simply returns success is sufficient since the RK3399 comes
out of reset with all clock gates open.

Signed-off-by: Mark Kettenis <kettenis@openbsd.org>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
2019-07-19 11:11:09 +08:00
Christoph Muellner
2461543632 rockchip: clk: rk3399: allow requests for all UART clocks
This patch adds the rate for UART1 and UART3 the same way
as already implemented for UART0 and UART2.

This is required for boards, which have their console output
on these UARTs.

Signed-off-by: Christoph Muellner <christoph.muellner@theobroma-systems.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
2019-05-30 18:22:35 +08:00
Kever Yang
5793e8c271 rockchip: clk: rk322x: fix assert clock value
BUS_PCLK_HZ and BUS_HCLK_HZ are from BUS_ACLK_HZ, not from GPLL_HZ.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
2019-05-08 17:34:12 +08:00
Kever Yang
e4d0d61275 rockchip: rk322x: add CLK_EMMC_SAMPLE clock support
Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
2019-05-08 17:34:12 +08:00
Kever Yang
15f09a1a83 rockchip: use 'arch-rockchip' as header file path
Rockchip use 'arch-rockchip' instead of arch-$(SOC) as common
header file path, so that we can get the correct path directly.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2019-05-01 00:00:05 +02:00
Simon Glass
5328af1774 rockchip: clk: Add mention of four new clocks
These clocks are needed to get MMC running. We don't actually support
setting them yet.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2019-02-01 16:59:13 +01:00
Simon Glass
3dbfe5ae61 rockchip: rk3288: Add i2s pinctrl and clock support
Add support for setting pinctrl and clock for I2S on rk3288. This allows
the sound driver to operate. These settings were created by rkmux.py

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2019-02-01 16:59:10 +01:00
Christoph Muellner
af765a49ba rockchip: rk3399: Initialize CPU B clock.
This patch sets the PLL of CPU cluster B (BPLL) to 600 MHz.
This decreases the boot time of Linux 4.19 by about 8%.

The 600 MHz are inspired by the 600 MHz used for LPLL initialization
(came in with commit 9f636a249c).

Tested on RK3399-Q7 on Haikou base board.

Signed-off-by: Christoph Muellner <christoph.muellner@theobroma-systems.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2018-11-30 21:56:45 +01:00
Otavio Salvador
5d2cb15c77 ARM: rockchip: rv1108: Sync clock with vendor tree
Make adjustments to the rv1108 clock driver in order to align it
with the internal Rockchip version.

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2018-11-30 21:56:44 +01:00
Patrick Delaunay
22929e1266 drivers: cosmetic: Convert SPDX license tags to Linux Kernel style
Complete in the drivers directory the work started with
commit 83d290c56f ("SPDX: Convert all of our single
license tags to Linux Kernel style").

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
2018-10-28 09:26:39 -04:00
Jonathan Gray
ed1030e152 rockchip: clk: rk3288: handle clk_enable requests for GMAC
Since b0ba1e7e9d
(rockchip: clk: rk3288: add clk_enable function and support USB HOST0/HSIC)
Ethernet no longer probes on RK3288.

Add no-ops for GMAC clocks observed to be requested which match the
clk_enable cases in RK3368 and RK3399.

Signed-off-by: Jonathan Gray <jsg@jsg.id.au>
Cc: Wadim Egorov <w.egorov@phytec.de>
Cc: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2018-05-14 17:30:40 +02:00
Tom Rini
83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 09:34:12 -04:00
Tom Rini
d024236e5a Remove unnecessary instances of DECLARE_GLOBAL_DATA_PTR
We have a large number of places where while we historically referenced
gd in the code we no longer do, as well as cases where the code added
that line "just in case" during development and never dropped it.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-04-27 14:54:48 -04:00
Kever Yang
c877ef3ac1 rockchip: rv1108: add ofdata_to_platdata() method for driver
Parse of data in dedicated api instead of in probe().

The clk_set_rate() may be called before the clk driver is probed,
after core support set default clock.
This patch fix system abort issue since:
f4fcba5 clk: implement clk_set_defaults()

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-sytems.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-sytems.com>
2018-04-25 22:20:07 +02:00
Kever Yang
d2e938d993 rockchip: rk3128: add ofdata_to_platdata() method for driver
Parse of data in dedicated api instead of in probe().

The clk_set_rate() may be called before the clk driver is probed,
after core support set default clock.
This patch fix system abort issue since:
f4fcba5 clk: implement clk_set_defaults()

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-sytems.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-sytems.com>
2018-04-25 22:20:06 +02:00
Kever Yang
accaaea5cc rockchip: rk3036: add ofdata_to_platdata() method for driver
Parse of data in dedicated api instead of in probe().

The clk_set_rate() may be called before the clk driver is probed,
after core support set default clock.
This patch fix system abort issue since:
f4fcba5 clk: implement clk_set_defaults()

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2018-04-25 22:20:06 +02:00
Wadim Egorov
b0ba1e7e9d rockchip: clk: rk3288: add clk_enable function and support USB HOST0/HSIC
The generic ehci-driver (ehci-generic.c) will try to enable the clocks
listed in the DTSI. If this fails (e.g. due to clk_enable not being
implemented in a driver and -ENOSYS being returned by the clk-uclass),
the driver will bail our and print an error message.

This implements a minimal clk_enable for the RK3288 and supports the
clocks mandatory for the EHCI controllers; as these are enabled by
default we simply return success.

Signed-off-by: Wadim Egorov <w.egorov@phytec.de>
Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2018-04-25 14:05:09 +02:00
Alexander Kochetkov
6b0c26fa05 rockchip: clk: rk3188: update dpll settings to make EMAC work
The patch set dpll settings for 300MHz to values used by binary
blob[1]. With new values dpll still generate 300MHz clock, but
EMAC work. Probably with new values dpll generate more stable clock.

dpll on rk3188 provide clocks to DDR and EMAC. With current
dpll settings EMAC doesn't work on radxa rock. EMAC sends packets
to network, but it doesn't receive anything. ifconfig shows a lot
of framing errors.

[1] https://github.com/linux-rockchip/u-boot-rockchip/blob/u-boot-rk3288/
    tools/rk_tools/3188_LPDDR2_300MHz_DDR3_300MHz_20130830.bin

Signed-off-by: Alexander Kochetkov <al.kochet@gmail.com>
Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2018-03-28 23:44:59 +02:00
Kever Yang
bbfef40f92 rockchip: clk: rk1108: convert to use live dt
Use live dt api to get cru base addr.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2018-03-13 18:12:35 +01:00
Kever Yang
08516431cf rockchip: clk: rk3328: convert to use live dt
Use live dt api to get cru base addr.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2018-03-13 18:12:35 +01:00
Kever Yang
995cde1f9c rockchip: clk: rk3288: convert to use live dt
Use live dt api to get cru base addr.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2018-03-13 18:12:35 +01:00
Kever Yang
99b8553cb8 rockchip: clk: rk322x: convert to use live dt
Use live dt api to get cru base addr.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2018-03-13 18:12:34 +01:00
Kever Yang
aca456471f rockchip: clk: rk3188: convert to use live dt
Use live dt api to get cru base addr.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2018-03-13 18:12:34 +01:00
Kever Yang
7ae028b669 rockchip: clk: rk3036: convert to use live dt
Use live dt api to get cru base addr.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2018-03-13 18:12:34 +01:00
Philipp Tomsich
434d5a00a4 rockchip: clk: rk3399: handle set_rate/get_rate for PLL_PPLL
The device-tree node for the PMU clk controller assigns to its parent
(i.e. PLL_PPLL) even though this clock currently is set up statically
by an init-function.

In order to avoid unexpected failures, a simple implementation of
set_rate (which accepts requests, but notifies the caller of the
preset frequency in its return value) and get_rate (which always
returns the preset frequency) are added.

Note that this is required for the RK808 PMIC to probe successfully on
the RK3399-Q7, following the support for the assigned-clocks property.

References: commit f4fcba5c5b ("clk: implement clk_set_defaults()")
Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Tested-by: Klaus Goger <klaus.goger@theobroma-systems.com>
2018-02-24 18:50:03 +01:00
Philipp Tomsich
35a69a3b01 rockchip: clk: rk3368: handle clk_enable requests for GMAC
Since commit ba1f966725 ("net: designware: add clock support"), the
designware GMAC driver enables all referenced clocks. While this is a
no-op for the RK3368 during boot-up (reset behaviour has all the clock
gates open anyway), we still need to handle the clock-ids passed in
the enable op of the clock-driver and return a success.

This change extends the RK3368 clk driver to:
(a) provide a enable op
(b) signals success to the caller when the clocks for the GMAC are
    enabled (no actual action is necessary as the gates are open
    after reset)

References: commit ba1f966725 ("net: designware: add clock support")
Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Tested-by: Klaus Goger <klaus.goger@theobroma-systems.com>
2018-02-24 18:46:45 +01:00
Philipp Tomsich
a9bdd67653 rockchip: clk: rk3399: handle clk_enable requests for GMAC
Since commit ba1f966725 ("net: designware: add clock support"), the
designware GMAC driver enables all referenced clocks. While this is a
no-op for the RK3399 during boot-up (reset behaviour has all the clock
gates open anyway), we still need to handle the clock-ids passed in
the enable op of the clock-driver and return a success.

This change extends the enable-op of the rk3399 clk driver to signal
success to the caller when the clocks for the GMAC are enabled.

References: commit ba1f966725 ("net: designware: add clock support")
Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Tested-by: Klaus Goger <klaus.goger@theobroma-systems.com>
2018-02-24 18:46:45 +01:00
Philipp Tomsich
75b381aae8 rockchip: clk: guard set_parent implementations against OF_PLATDATA
The set_parent implementations do not make sense when OF_PLATDATA is
enabled.  We guard these against OF_PLATDATA and don't populate the
set_parent-op when this is the case.

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2018-01-28 17:12:39 +01:00
David Wu
64a12202ed clk: rockchip: clk_rk3368: Implement "assign-clock-parent"
Implement the setting parent for gmac clock, and add internal
pll div set for mac clk.

Signed-off-by: David Wu <david.wu@rock-chips.com>
Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2018-01-28 17:12:39 +01:00
David Wu
01c60eafbb clk: rockchip: clk_rk3288: Implement "assign-clock-parent" and "assign-clock-rate"
The RK3288 CRU-node assigns rates to a number of clocks that are not
implemented in the RK3288 clock-driver (but which have been
sufficiently initialised from rkclk_init()): for these clocks, we
implement the gmac clock set parent, but simply ignore the
others' set_rate() operation and return 0 to signal success.

Signed-off-by: David Wu <david.wu@rock-chips.com>
Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2018-01-28 17:12:39 +01:00