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>

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>

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.

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.
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.
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: 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.

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 am33xx SoC. Additionally, enable the
genpd support for them.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
[tony@atomide.com: fixed a typo for #power-domain-cells]
Signed-off-by: Tony Lindgren <tony@atomide.com>

In order to move wkup_m3 to probe without platform data, let's add
support for using optional reset control driver if configured in the
dts. With this change and the related dts change, we can start
dropping the platform data for am335x.

And once wkup_m3 no longer needs platform data, we can simply drop the
related legacy reset platform data callbacks from wkup_m3 driver later
on after also am437x no longer depends on it.

Cc: linux-remoteproc@vger.kernel.org
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Dave Gerlach <d-gerlach@ti.com>
Cc: Philipp Zabel <p.zabel@pengutronix.de>
Cc: Suman Anna <s-anna@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

To prepare for moving to use genpd, let's enable basic PM
runtime support.

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