Merge tag 'omap-for-v5.11/genpd-rest-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into arm/omap-genpd

Remaining genpd changes for omaps for v5.11

This series contains the remaining genpd changes for omap4/5,
and dra7 to add the power domain and reset control data to
omap-prm driver. We also update several devices to probe without
platform data to get us closer to booting omap4/5, and dra7
without platform data.

There is also a build fix for the earlier am437x series that
I should have applied into a separate branch on top of the
am437x breaking commit. It ended here as I was originally
planning to send out a single pull request for all the genpd
changes, but then decided to break it down to smaller chunks.
It's all really a larger single git branch though, so this
should be OK and I really did not want to start reorganizing
the branch after testing it and having it sit in Linux next.

The changes done here are:

- Clock driver needs idlest check dropped for IVA for omap4
  and dra7

- Add remaining power domain and reset control data to
  omap-prm driver for omap4/5 and dra7

- Add device tree data for remaining power domains and
  reset control for omap4/5 and dra7 dts files

- Update dss, dsp, iva and gpmc dts files to use genpd
  and to drop the remaining platform data

- Update dss for omap5 to use genpd

- Update dra7 iva to to use genpd and to drop the remaining
  platform data

* tag 'omap-for-v5.11/genpd-rest-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: OMAP2+: Fix am4 only build after genpd changes
  ARM: dts: Configure power domain for omap5 dss
  ARM: dts: omap5: add remaining PRM instances
  soc: ti: omap-prm: omap5: add genpd support for remaining PRM instances
  ARM: OMAP2+: Drop legacy platform data for dra7 gpmc
  ARM: dts: Configure interconnect target module for dra7 iva
  ARM: dts: dra7: add remaining PRM instances
  soc: ti: omap-prm: dra7: add genpd support for remaining PRM instances
  clk: ti: dra7: Drop idlest polling from IVA clkctrl clocks
  ARM: OMAP2+: Drop legacy platform data for omap4 gpmc
  ARM: OMAP2+: Drop legacy platform data for omap4 iva
  ARM: dts: Configure power domain for omap4 dsp
  ARM: dts: Configure power domain for omap4 dss
  ARM: dts: omap4: add remaining PRM instances
  soc: ti: omap-prm: omap4: add genpd support for remaining PRM instances
  clk: ti: omap4: Drop idlest polling from IVA clkctrl clocks

Link: https://lore.kernel.org/r/pull-1606806458-694517@atomide.com-4Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Merge tag 'omap-for-v5.11/genpd-am437x-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into arm/omap-genpd

Update am473x to boot without platform data

Similar to am335x, we can now update am437x dts files to boot
with genpd and simple-pm-bus, and drop the related platform data.

To do that, we need to do the following changes for am437x:

- Update the clock driver to keep the l3_main clock always on for
  suspend and resume to work

- Add power domain and reset controller data to omap-prm driver

- Configure interconnect clocks for system timers as those are
  now managed separately by the drivers/clocksource drivers

- Update control module, wkup_m3, emif, ocmcram, mpuss and l3_noc
  for device tree data and drop the legacy platform data

- Update the interconnect instances to boot with gendp and
  simple-pm-bus

- Drop the remaining platform data for am437x

* tag 'omap-for-v5.11/genpd-am437x-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: OMAP2+: Drop legacy remaining legacy platform data for am4
  ARM: dts: Use simple-pm-bus for genpd for am4 l3
  ARM: dts: Move am4 l3 noc to a separate node
  ARM: dts: Use simple-pm-bus for genpd for am4 l4_per
  ARM: dts: Use simple-pm-bus for genpd for am4 l4_fast
  ARM: dts: Use simple-pm-bus for genpd for am4 l4_wkup
  ARM: OMAP2+: Drop legacy platform data for am4 mpuss
  ARM: OMAP2+: Drop legacy platform data for am4 ocmcram
  ARM: OMAP2+: Drop legacy platform data for am4 emif
  ARM: OMAP2+: Drop legacy platform data for am4 wkup_m3
  ARM: dts: Configure interconnect target module for am4 wkup_m3
  ARM: dts: Configure RTC powerdomain for am4
  ARM: OMAP2+: Drop legacy platform data for am4 control module
  ARM: dts: Configure also interconnect clocks for am4 system timer
  ARM: dts: am43xx: add remaining PRM instances
  soc: ti: omap-prm: am4: add genpd support for remaining PRM instances
  clk: ti: am437x: Keep am4 l3 main clock always on for genpd

Link: https://lore.kernel.org/r/pull-1606806458-694517@atomide.com-3Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Merge tag 'omap-for-v5.11/genpd-am335x-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into arm/omap-genpd

Update am335x to boot without platform data

With the driver updates done for genpd support, we can now update
am335x dts files to boot with genpd and simple-pm-bus, and drop
the related platform data.

To do that, we need to do the following changes for am335x:

- Add the remaining power domain and reset controller instances

- Configure interconnect clocks for system timers as those are
  now managed separately by the drivers/clocksource drivers

- Update control module, RTC, gpmc, debugss, emif, ocmcram,
  instr, and mpuss for device tree data and drop the legacy
  platform data

- Update the interconnect instances to boot with gendp and
  simple-pm-bus

- Drop the remaining platform data for am335x

- Add kconfig option for OMAP_HWMOD to build it only for the
  SoCs that need it

* tag 'omap-for-v5.11/genpd-am335x-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: OMAP2+: Build hwmod related code as needed
  ARM: OMAP2+: Drop legacy remaining legacy platform data for am3
  ARM: dts: Use simple-pm-bus for genpd for am3 l3
  ARM: dts: Use simple-pm-bus for genpd for am3 l4_per
  ARM: dts: Use simple-pm-bus for genpd for am3 l4_fast
  ARM: dts: Use simple-pm-bus for genpd for am3 l4_wkup
  ARM: OMAP2+: Drop legacy platform data for am3 mpuss
  ARM: OMAP2+: Drop legacy platform data for am3 instr
  ARM: OMAP2+: Drop legacy platform data for am3 ocmcram
  ARM: OMAP2+: Drop legacy platform data for am3 emif
  ARM: OMAP2+: Drop legacy platform data for am3 debugss
  ARM: OMAP2+: Drop legacy platform data for am3 and am4 gpmc
  ARM: OMAP2+: Drop legacy platform data for am3 wkup_m3
  ARM: dts: Configure interconnect target module for am3 wkup_m3
  ARM: dts: Configure RTC powerdomain for am3
  ARM: OMAP2+: Drop legacy platform data for am3 control module
  ARM: dts: Configure also interconnect clocks for am4 system timer
  ARM: dts: am33xx: add remaining PRM instances

Link: https://lore.kernel.org/r/pull-1606806458-694517@atomide.com-2Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Merge tag 'omap-for-v5.11/genpd-drivers-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into arm/omap-genpd

Driver changes for omaps for genpd for v5.11 merge window

This series of changes allows booting am335x with genpd and
device tree data without the legacy platform data. Also at
least am437x can be booted with gendp with power domain and
dts data. The SoC specific dts changes will be a separate
pull request.

We need the following driver changes merged before the dts
changes can be done:

- platform code needs a few improvments to probe l4_wkup first
  for clocks, and to bail out when there is no platform data

- ti-sysc driver needs a non-urgent fix for asserting rstctrl
  reset only after disabling the clocks, to probe modules with
  no known control registers, and added quirk handling for gpmc
  devices

- omap-prm driver needs a non-urgent fix for reset status bit,
  support added for pm_clk, and then we add the rest of am335x
  power domain data

- clock driver for am335x needs to keep l3_main clock enabled
  with genpd for suspend and resume to work

- wkup_m3 remoteproc driver needs support added for reset
  control if available instead of the legacy pdata callbacks

- pm33xx driver needs PM runtime support added for genpd

The am335x specific driver changes for the clock, wkup_m3,
pm33xx and remoteproc drivers are quite trivial and have not
caused merge conflicts in Linux next. I did not get acks for
these changes except from Santosh but had already pushed out
the branch already at that point. So I've added the related
driver maintainers to Cc.

* tag 'omap-for-v5.11/genpd-drivers-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  remoteproc/wkup_m3: Use reset control driver if available
  soc: ti: pm33xx: Enable basic PM runtime support for genpd
  soc: ti: omap-prm: am3: add genpd support for remaining PRM instances
  soc: ti: omap-prm: Add pm_clk for genpd
  clk: ti: am33xx: Keep am3 l3 main clock always on for genpd
  bus: ti-sysc: Implement GPMC debug quirk to drop platform data
  bus: ti-sysc: Support modules without control registers
  ARM: OMAP2+: Probe PRCM first to probe l4_wkup with simple-pm-bus
  ARM: OMAP2+: Check for inited flag
  bus: ti-sysc: Assert reset only after disabling clocks
  soc: ti: omap-prm: Do not check rstst bit on deassert if already deasserted
  bus: ti-sysc: Fix bogus resetdone warning on enable for cpsw
  bus: ti-sysc: Fix reset status check for modules with quirks
  ARM: OMAP2+: Fix missing select PM_GENERIC_DOMAINS_OF
  ARM: OMAP2+: Fix location for select PM_GENERIC_DOMAINS
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

With commit df6c2ec8 ("ARM: OMAP2+: Drop legacy remaining legacy
platform data for am4") we moved am4 to boot with simple-pm-bus using
genpd and devicetree based data. But I forgot to test am4 only build
that still has few references to the old platform data left, and cause
undefined reference errors with omap_hwmod_set_postsetup_state and
omap_hwmod_for_each. We can just drop the related calls for am4 now,
and also drop the references to unused struct wkup_m3_platform_data.
Reported-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

This allows shutting down dss domain when the screen blanks.
Signed-off-by: Tony Lindgren <tony@atomide.com>

Add remaining PRM instances for the omap5 SoC. Additionally enable the
genpd support for them.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

Add genpd support for mpu, dsp, coreaon, core, iva, cam, dss, gpu,
l3init, custefuse, wkupaon and emu instances.

Cc: Santosh Shilimkar <ssantosh@kernel.org>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

We can now probe devices with ti-sysc interconnect driver and dts
data. Let's drop the related platform data and custom ti,hwmods
dts property.

Cc: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

We can now probe devices with device tree only configuration using
ti-sysc interconnect target module driver.

Cc: Suman Anna <s-anna@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

Add remaining PRM instances for the dra7 SoC. Additionally enable the
genpd support for them.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

Add genpd support for mpu, dsp, ipu, coreaon, core, iva, cam, dss, gpu,
l3init, l4per, custefuse, wkupaon, emu, eve, rtc and vpe instances.

Cc: Santosh Shilimkar <ssantosh@kernel.org>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

Similar to what we've done for IPU and DSP let's ignore the status bit
for the IVA clkctrl register.

The clkctrl status won't change unless the related rstctrl is deasserted,
and the rstctrl status won't change unless the clkctrl is enabled.

Cc: linux-clk@vger.kernel.org
Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Stephen Boyd <sboyd@kernel.org>
Cc: Suman Anna <s-anna@ti.com>
Cc: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

We can now probe devices with ti-sysc interconnect driver and dts
data. Let's drop the related platform data and custom ti,hwmods
dts property.

Cc: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

We can now probe devices with ti-sysc interconnect driver and dts
data. Let's drop the related platform data and custom ti,hwmods
dts property.

Cc: Suman Anna <s-anna@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

This allows shutting down the dsp domain when not in use.
Signed-off-by: Tony Lindgren <tony@atomide.com>

This allows shutting down dss domain when the screen blanks.
Signed-off-by: Tony Lindgren <tony@atomide.com>

Add remaining PRM instances for the omap4 SoC. Additionally enable the
genpd support for them.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

Add genpd support for mpu, tesla, always_on_core, core, ivahd, cam, dss,
gfx, l3init, l4per, cefuse, wkup and emu instances.

Cc: Santosh Shilimkar <ssantosh@kernel.org>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

Similar to what we've done for IPU and DSP let's ignore the status bit
for the IVA clkctrl register.

The clkctrl status won't change unless the related rstctrl is deasserted,
and the rstctrl status won't change unless the clkctrl is enabled.

Cc: linux-clk@vger.kernel.org
Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Stephen Boyd <sboyd@kernel.org>
Cc: Suman Anna <s-anna@ti.com>
Cc: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

We can now drop the remaining legacy platform data as we are
probing devices with device tree data.
Signed-off-by: Tony Lindgren <tony@atomide.com>

We can now enable simple-pm-bus to use genpd.
Signed-off-by: Tony Lindgren <tony@atomide.com>

In preparation for probing l3 with simple-pm-bus and genpd, we must move
l3 noc to a separate node to prevent omap_l3_noc.c driver from claiming
the whole l3 instance before simple-pm-bus has a chance to probe.
Signed-off-by: Tony Lindgren <tony@atomide.com>

We can now enable simple-pm-bus to use genpd.
Signed-off-by: Tony Lindgren <tony@atomide.com>

We can now enable simple-pm-bus to use genpd.
Signed-off-by: Tony Lindgren <tony@atomide.com>

We can now enable simple-pm-bus to use genpd.
Signed-off-by: Tony Lindgren <tony@atomide.com>

We can now probe devices with ti-sysc interconnect driver and dts
data. Let's drop the related platform data and custom ti,hwmods
dts property.
Signed-off-by: Tony Lindgren <tony@atomide.com>

We can now probe devices with ti-sysc interconnect driver and dts
data. Let's drop the related platform data and custom ti,hwmods
dts property.

Note that we need to use "ti,no-idle" here.

Cc: Dave Gerlach <d-gerlach@ti.com>
Cc: Suman Anna <s-anna@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

We can now probe devices with ti-sysc interconnect driver and dts
data. Let's drop the related platform data and custom ti,hwmods
dts property.

Cc: Dave Gerlach <d-gerlach@ti.com>
Cc: Suman Anna <s-anna@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

We can now probe devices with ti-sysc interconnect driver and dts
data. Let's drop the related platform data and custom ti,hwmods
dts property.

As we're just dropping data, and the early platform data init
is based on the custom ti,hwmods property, we want to drop both
the platform data and ti,hwmods property in a single patch.

Cc: Dave Gerlach <d-gerlach@ti.com>
Cc: Suman Anna <s-anna@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

We can now probe devices with device tree only configuration using
ti-sysc interconnect target module driver.

Note that we no longer need ti,no-reset-on-init as the rstctrl resets
are properly handled by the reset driver and claimed by the RTC driver.
And we need to squash together the module ranges for driver compability.

Cc: Dave Gerlach <d-gerlach@ti.com>
Cc: Suman Anna <s-anna@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

For genpd we need the RTC powerdomain configured.

Cc: Dave Gerlach <d-gerlach@ti.com>
Cc: Suman Anna <s-anna@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

We can now probe devices with ti-sysc interconnect driver and dts
data. Let's drop the related platform data and custom ti,hwmods
dts property.

To drop the legacy platform data for am3 control module, we need
to configure the missing functional clock and tag the module to
not idle as platform data also had it configured with
HWMOD_INIT_NO_IDLE.
Signed-off-by: Tony Lindgren <tony@atomide.com>

We now manage clocksource and clockevent clocks directly with
timer-ti-dm-systimer. In order to use genpd with prm_omap,
GENPD_FLAG_PM_CLK and simple-pm-bus, we need to keep the system
timer related interconnect clocks enabled until clocksource suspend
is done.
Signed-off-by: Tony Lindgren <tony@atomide.com>

Add remaining PRM instances for the am43xx SoC. Additionally enable the
genpd support for them.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

Add genpd support for mpu, rtc, tamper, cefuse, per and wkup instances.

Cc: Santosh Shilimkar <ssantosh@kernel.org>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

In order for suspend and resume to work with genpd on am4, we must keep
l3 main clock always on. Otherwise prm_omap driver will shut down the l3
main clock on suspend when simple-pm-bus and GENPD_FLAG_PM_CLK are used.
Note that we already keep the l3 main clock always on with the legacy
platform code.

Later on we may want to start managing the l3 main clock with a dedicated
interconnect driver instead of using simple-pm-bus and GENPD_FLAG_PM_CLK.

Cc: linux-clk@vger.kernel.org
Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Stephen Boyd <sboyd@kernel.org>
Cc: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

If we have only am3 selected, there's no need to build the
hwmod related code as we are probing devices with device tree
data.
Signed-off-by: Tony Lindgren <tony@atomide.com>

We can now drop the remaining legacy platform data as we are
probing devices with device tree data.
Signed-off-by: Tony Lindgren <tony@atomide.com>

We can now enable simple-pm-bus to use genpd.
Signed-off-by: Tony Lindgren <tony@atomide.com>