MSM8992 features less clocks & GDSCS and has different
freq tables for some of them.

Signed-off-by: Konrad Dybcio <konrad.dybcio@somainline.org>

Add a driver for managing MultiMedia SubSystem clocks on msm8994
and its derivatives.

Signed-off-by: Konrad Dybcio <konrad.dybcio@somainline.org>

Document the multimedia clock controller found on MSM8992/4.

Signed-off-by: Konrad Dybcio <konrad.dybcio@somainline.org>

* clk-vc5:
  clk: vc5: fix output disabling when enabling a FOD

On 5P49V6965, when an output is enabled we enable the corresponding
FOD. When this happens for the first time, and specifically when writing
register VC5_OUT_DIV_CONTROL in vc5_clk_out_prepare(), all other outputs
are stopped for a short time and then restarted.

According to Renesas support this is intended: "The reason for that is VC6E
has synced up all output function".

This behaviour can be disabled at least on VersaClock 6E devices, of which
only the 5P49V6965 is currently implemented by this driver. This requires
writing bit 7 (bypass_sync{1..4}) in register 0x20..0x50.  Those registers
are named "Unused Factory Reserved Register", and the bits are documented
as "Skip VDDO<N> verification", which does not clearly explain the relation
to FOD sync. However according to Renesas support as well as my testing
setting this bit does prevent disabling of all clock outputs when enabling
a FOD.

See "VersaClock ® 6E Family Register Descriptions and Programming Guide"
(August 30, 2018), Table 116 "Power Up VDD check", page 58:
https://www.renesas.com/us/en/document/mau/versaclock-6e-family-register-descriptions-and-programming-guide

Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Reviewed-by: Adam Ford <aford173@gmail.com>
Link: https://lore.kernel.org/r/20210527211647.1520720-1-luca@lucaceresoli.net
Fixes: 2bda748 ("clk: vc5: Add support for IDT VersaClock 5P49V6965")
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

 - Add TI am33xx spread spectrum clock support

* clk-ti:
  clk: ti: add am33xx/am43xx spread spectrum clock support
  ARM: dts: am43xx-clocks: add spread spectrum support
  ARM: dts: am33xx-clocks: add spread spectrum support
  dt-bindings: ti: dpll: add spread spectrum support
  clk: ti: fix typo in routine description

The patch enables spread spectrum clocking (SSC) for MPU and LCD PLLs.
As reported by the TI spruh73x/spruhl7x RM, SSC is only supported for
the DISP/LCD and MPU PLLs on am33xx/am43xx. SSC is not supported for
DDR, PER, and CORE PLLs.

Calculating the required values and setting the registers accordingly
was taken from the set_mpu_spreadspectrum routine contained in the
arch/arm/mach-omap2/am33xx/clock_am33xx.c file of the u-boot project.

In locked condition, DPLL output clock = CLKINP *[M/N]. In case of
SSC enabled, the reference manual explains that there is a restriction
of range of M values. Since the omap2_dpll_round_rate routine attempts
to select the minimum possible N, the value of M obtained is not
guaranteed to be within the range required. With the new "ti,min-div"
parameter it is possible to increase N and consequently M to satisfy the
constraint imposed by SSC.

Signed-off-by: Dario Binacchi <dariobin@libero.it>
Reviewed-by: Tero Kristo <kristo@kernel.org>
Link: https://lore.kernel.org/r/20210606202253.31649-6-dariobin@libero.it
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

Registers for adjusting the spread spectrum clocking (SSC) have been
added. As reported by the TI spruhl7x RM, SSC is supported only for LCD
and MPU PLLs, but the PRCM_CM_SSC_DELTAMSTEP_DPLL_XXX and
PRCM_CM_SSC_MODFREQDIV_DPLL_XXX registers, as well as the enable field
in the PRCM_CM_CLKMODE_DPLL_XXX registers are mapped for all PLLs (CORE,
MPU, DDR, PER, DISP, EXTDEV).

Signed-off-by: Dario Binacchi <dariobin@libero.it>
Acked-by: Tony Lindgren <tony@atomide.com>
Link: https://lore.kernel.org/r/20210606202253.31649-5-dariobin@libero.it
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

Registers for adjusting the spread spectrum clocking (SSC) have been
added. As reported by the TI spruh73x RM, SSC is supported only for LCD
and MPU PLLs, but the CM_SSC_DELTAMSTEP_DPLL_XXX and
CM_SSC_MODFREQDIV_DPLL_XXX registers, as well as the enable field in the
CM_CLKMODE_DPLL_XXX registers are mapped for all PLLs (CORE, MPU, DDR,
PER, DISP).

Signed-off-by: Dario Binacchi <dariobin@libero.it>
Acked-by: Tony Lindgren <tony@atomide.com>
Link: https://lore.kernel.org/r/20210606202253.31649-4-dariobin@libero.it
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

DT bindings for enabling and adjusting spread spectrum clocking have
been added.

Signed-off-by: Dario Binacchi <dariobin@libero.it>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20210606202253.31649-3-dariobin@libero.it
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

Replace _omap3_noncore_dpll_program with omap3_noncore_dpll_program.

Signed-off-by: Dario Binacchi <dariobin@libero.it>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lore.kernel.org/r/20210606202253.31649-2-dariobin@libero.it
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

* clk-qcom:
  clk: qcom: smd-rpm: Fix wrongly assigned RPM_SMD_PNOC_CLK

During my big cleanup I managed to assign an AO clock to its
non-AO binding. Fix this.

Reported-by: Bartosz Dudziak <bartosz.dudziak@snejp.pl>
Signed-off-by: Konrad Dybcio <konrad.dybcio@somainline.org>
Link: https://lore.kernel.org/r/20210606192657.51037-1-konrad.dybcio@somainline.org
Fixes: a0384ec ("clk: qcom: smd-rpm: De-duplicate identical entries")
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

* clk-legacy:
  clkdev: remove unused clkdev_alloc() interfaces
  clkdev: remove CONFIG_CLKDEV_LOOKUP
  m68k: coldfire: remove private clk_get/clk_put
  m68k: coldfire: use clkdev_lookup on most coldfire
  mips: ralink: convert to CONFIG_COMMON_CLK
  mips: ar7: convert to CONFIG_COMMON_CLK
  mips: ar7: convert to clkdev_lookup

…el/git/arnd/asm-generic into clk-legacy

Pull "clean up legacy clock interfaces" series from Arnd Bergmann:

A recent discussion about legacy clk interface users revealed
that there are only two platforms remaining that provide their own
clk_get()/clk_put() implementations, MIPS ar7 and and m68k coldfire.

I managed to rework both of these to just use the normal clkdev code,
and fold CONFIG_CLKDEV_LOOKUP into CONFIG_HAVE_CLK as it is now shared
among all users.

As I noticed that the ar7 clock implementation and the ralink version
are rather trivial, I ended up converting those to use the common-clk
interfaces as well, though this is unrelated to the other changes.

Link: https://lore.kernel.org/linux-clk/20210531184749.2475868-1-arnd@kernel.org/
Link: https://lore.kernel.org/lkml/CAK8P3a2XsrfUJQQAfnGknh8HiA-D9L_wmEoAgXU89KqagE31NQ@mail.gmail.com/
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

* tag 'clkdev-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic:
  clkdev: remove unused clkdev_alloc() interfaces
  clkdev: remove CONFIG_CLKDEV_LOOKUP
  m68k: coldfire: remove private clk_get/clk_put
  m68k: coldfire: use clkdev_lookup on most coldfire
  mips: ralink: convert to CONFIG_COMMON_CLK
  mips: ar7: convert to CONFIG_COMMON_CLK
  mips: ar7: convert to clkdev_lookup

The last user of clkdev_alloc() and clkdev_hw_alloc() was
removed last year, so everything now calls clkdev_create()
and clkdev_hw_create() instead.

Removing the unused functions lets the compiler optimize
the remaining ones slightly better.

Fixes: e500667 ("clk: versatile: Drop the legacy IM-PD1 clock code")
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

This option is now synonymous with CONFIG_HAVE_CLK, so use
the latter globally. Any out-of-tree platform ports that
still use a private clk_get()/clk_put() implementation should
move to CONFIG_COMMON_CLK.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Only three SoCs remain that use the custom clk_get/clk_put.
Move these over to clkdev_lookup tables as well. As before,
treat the "sys.0" and "pll.0" clocks as system-wide clocks,
and all the other ones as device specific.

The "name" field in 'struct clock' is now unused, so rename
that as well as a cleanup and to reduce the object code size.
The DEFINE_CLK macro could be changed the same way, but it
is less churn to just leave those in place, that can be
done as a follow-up later if someone is interested.

Acked-by: Greg Ungerer <gerg@linux-m68k.org>
Tested-by: Greg Ungerer <gerg@linux-m68k.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Coldfire is now the only target that implements the clk_get()/clk_put()
helpers itself rather than using the common implementation.

Most coldfire variants only have two distinct clocks and use the clk
code purely for lookup. Change those over to use clkdev_lookup instead
but leave the custom clk interface for those two clocks.

Also leave the four SoCs that have gated clocks.

Acked-by: Greg Ungerer <gerg@linux-m68k.org>
Tested-by: Greg Ungerer <gerg@linux-m68k.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

ralink only has a very trivial clock implementation, with everything
being fixed clocks.

Convert it to CONFIG_COMMON_CLK to reduce the number of platforms
that rely on legacy clocks. Of course, the clocks really should
be read from the device tree instead, but this is a step into that
direction.

This adds about 50KB to the kernel image size, which is an unfortunate
increase, but not as bad as I had feared:

   text	   data	    bss	    dec	    hex	filename
3778560	1582216	  92256	5453032	 5334e8	vmlinux-vocore-before
3822148	1601192	  92304	5515644	 54297c	vmlinux-vocore-after
3870226	1644468	 200192	5714886	 5733c6	vmlinux-rt305x-before
3916727	1668404	 200240	5785371	 58471b	vmlinux-rt305x-after

Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Perform a minimal conversion of the ar7 clock implementation to the common
clock framework. While the hardware can control the rates, this is left
unchanged, and all clocks are registered as fixed-rate or fixed-divider
clocks. Similarly, the clkdev lookup information is left unchanged but
moved from the table format into individual allocations.

There is a small increase in code size:

   text	   data	    bss	    dec	    hex	filename
4757116	 596640	  91328	5445084	 5315dc	vmlinux-before
4806159	 602360	  91344	5499863	 53ebd7	vmlinux-after

Signed-off-by: Arnd Bergmann <arnd@arndb.de>

ar7 is one of only two platforms that provide the clock interface but
implement a custom version of the clkdev_lookup code.

Change this to use the generic version instead.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>

* clk-versatile:
  clk: versatile: Depend on HAS_IOMEM

kbuild robot reports that s390 fails to build this driver with
COMPILE_TEST. Let's depend on HAS_IOMEM so that s390 doesn't try to
build it.

Cc: Lee Jones <lee.jones@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Reported-by: kernel test robot <lkp@intel.com>
Fixes: 419b3ab ("clk: versatile: remove dependency on ARCH_*")
Link: https://lore.kernel.org/r/20210604192321.2594519-1-sboyd@kernel.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

* clk-qcom:
  dt-bindings: clock: qcom: rpmcc: Document MSM8226 compatible
  clk: qcom: dispcc-sm8250: Add EDP clocks
  clk: qcom: dispcc-sm8250: Add sc8180x support
  clk: qcom: smd-rpm: De-duplicate identical entries
  clk: qcom: smd-rpm: Switch to parent_data
  clk: qcom: Add MDM9607 GCC driver
  dt-bindings: clock: Add MDM9607 GCC clock bindings

Add the dt-binding for the RPM Clock Controller on the MSM8226 SoC.

Signed-off-by: Bartosz Dudziak <bartosz.dudziak@snejp.pl>
Link: https://lore.kernel.org/r/20210502122027.9351-4-bartosz.dudziak@snejp.pl
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20210511041719.591969-2-bjorn.andersson@linaro.org
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

The display clock controller in SC8180x is reused from SM8150, so add
the necessary compatible and wire up the driver to enable this.

Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20210511041719.591969-1-bjorn.andersson@linaro.org
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

It makes negative sense to keep repeating the same definitions
over and over and over and over again, just with changed names..

De-duplicate to make for a drastically smaller file size. This makes the
object file size 55% smaller according to bloat-o-meter:

 Total: Before=70713, After=31353, chg -55.66%

Signed-off-by: Konrad Dybcio <konrad.dybcio@somainline.org>
Link: https://lore.kernel.org/r/20210524225456.398817-2-konrad.dybcio@somainline.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

Switch to parent_data and with that fix the longstanding issue where
if there wasn't a clock precisely named "xo_board", rpmcc would not play
along well. This started to show lately when "xo_board" was being changed to
"xo-board" so as to align with DTS naming spec.

Signed-off-by: Konrad Dybcio <konrad.dybcio@somainline.org>
Link: https://lore.kernel.org/r/20210524225456.398817-1-konrad.dybcio@somainline.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

Add Global Clock Controller (GCC) support for MDM9607 SoC.

Signed-off-by: Konrad Dybcio <konrad.dybcio@somainline.org>
Link: https://lore.kernel.org/r/20210313020310.386152-2-konrad.dybcio@somainline.org
[sboyd@kernel.org: Drop clk.h include]
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

Add device tree bindings for global clock controller on MDM9607 SoC.

Signed-off-by: Konrad Dybcio <konrad.dybcio@somainline.org>
Link: https://lore.kernel.org/r/20210313020310.386152-1-konrad.dybcio@somainline.org
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

* clk-sifive:
  clk: analogbits: fix doc warning in wrpll-cln28hpc.c
  clk: sifive: Fix kernel-doc

Fix the following make W=1 warning:

  drivers/clk/analogbits/wrpll-cln28hpc.c:227: warning: expecting prototype for wrpll_configure(). Prototype was for wrpll_configure_for_rate() instead

Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20210601114154.3163327-1-yangyingliang@huawei.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

Fix function name in sifive-prci.c kernel-doc comment
to remove a warning.

drivers/clk/sifive/sifive-prci.c:573: warning: expecting prototype for
sifive_prci_init(). Prototype was for sifive_prci_probe() instead

Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Link: https://lore.kernel.org/r/1621851730-32287-1-git-send-email-yang.lee@linux.alibaba.com
Reviewed-by: Palmer Dabbelt <palmerdabbelt@google.com>
Acked-by: Palmer Dabbelt <palmerdabbelt@google.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>