linux.git/arch/powerpc/sysdev, branch v6.16

Merge tag 'irq-cleanups-2025-05-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2025-05-27T15:07:32+00:00

Pull irq cleanups from Thomas Gleixner:
 "A set of cleanups for the generic interrupt subsystem:

   - Consolidate on one set of functions for the interrupt domain code
     to get rid of pointlessly duplicated code with only marginal
     different semantics.

   - Update the documentation accordingly and consolidate the coding
     style of the irqdomain header"

* tag 'irq-cleanups-2025-05-25' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (46 commits)
  irqdomain: Consolidate coding style
  irqdomain: Fix kernel-doc and add it to Documentation
  Documentation: irqdomain: Update it
  Documentation: irq-domain.rst: Simple improvements
  Documentation: irq/concepts: Minor improvements
  Documentation: irq/concepts: Add commas and reflow
  irqdomain: Improve kernel-docs of functions
  irqdomain: Make struct irq_domain_info variables const
  irqdomain: Use irq_domain_instantiate()'s return value as initializers
  irqdomain: Drop irq_linear_revmap()
  pinctrl: keembay: Switch to irq_find_mapping()
  irqchip/armada-370-xp: Switch to irq_find_mapping()
  gpu: ipu-v3: Switch to irq_find_mapping()
  gpio: idt3243x: Switch to irq_find_mapping()
  sh: Switch to irq_find_mapping()
  powerpc: Switch to irq_find_mapping()
  irqdomain: Drop irq_domain_add_*() functions
  powerpc: Switch irq_domain_add_nomap() to use fwnode
  thermal: Switch to irq_domain_create_linear()
  soc: Switch to irq_domain_create_*()
  ...

powerpc: Switch to irq_find_mapping()

2025-05-16T19:06:12+00:00

irq_linear_revmap() is deprecated, so remove all its uses and supersede
them by an identical call to irq_find_mapping().

[ tglx: Fix up subject prefix ]

Signed-off-by: Jiri Slaby (SUSE) 
Signed-off-by: Thomas Gleixner 
Acked-by: Christophe Leroy  # for 8xx
Link: https://lore.kernel.org/all/20250319092951.37667-42-jirislaby@kernel.org

powerpc: Switch to irq_domain_create_*()

2025-05-16T19:06:11+00:00

irq_domain_add_*() interfaces are going away as being obsolete now.
Switch to the preferred irq_domain_create_*() ones. Those differ in the
node parameter: They take more generic struct fwnode_handle instead of
struct device_node. Therefore, of_fwnode_handle() is added around the
original parameter.

Note some of the users can likely use dev->fwnode directly instead of
indirect of_fwnode_handle(dev->of_node). But dev->fwnode is not
guaranteed to be set for all, so this has to be investigated on case to
case basis (by people who can actually test with the HW).

[ tglx: Fix up subject prefix ]

Signed-off-by: Jiri Slaby (SUSE) 
Signed-off-by: Thomas Gleixner 
Reviewed-by: Christophe Leroy  # For 8xx
Link: https://lore.kernel.org/all/20250319092951.37667-33-jirislaby@kernel.org

powerpc: sysdev/gpio: use new line value setter callbacks

2025-05-04T03:34:37+00:00

struct gpio_chip now has callbacks for setting line values that return
an integer, allowing to indicate failures. Convert the driver to using
them.

Reviewed-by: Linus Walleij 
Reviewed-by: Christophe Leroy 
Signed-off-by: Bartosz Golaszewski 
Signed-off-by: Madhavan Srinivasan 
Link: https://patch.msgid.link/20250502-gpiochip-set-rv-powerpc-v2-1-488e43e325bf@linaro.org

powerpc: mpic: Use str_enabled_disabled() helper function

2025-04-16T16:49:01+00:00

Remove hard-coded strings by using the str_enabled_disabled() helper
function.

Use pr_debug() instead of printk(KERN_DEBUG) to silence a checkpatch
warning.

Reviewed-by: Ricardo B. Marlière 
Signed-off-by: Thorsten Blum 
Signed-off-by: Madhavan Srinivasan 
Link: https://patch.msgid.link/20250219112053.3352-2-thorsten.blum@linux.dev

irqdomain: Rename irq_set_default_host() to irq_set_default_domain()

2025-04-04T14:39:10+00:00

Naming interrupt domains host is confusing at best and the irqdomain code
uses both domain and host inconsistently.

Therefore rename irq_set_default_host() to irq_set_default_domain().

Signed-off-by: Jiri Slaby (SUSE) 
Signed-off-by: Thomas Gleixner 
Link: https://lore.kernel.org/all/20250319092951.37667-3-jirislaby@kernel.org

powerpc: Remove DCR_MMIO and the DCR generic layer

2025-02-26T15:45:08+00:00

The Cell blade support was the last user of DCR_MMIO, so it can now
be removed.

That only leaves DCR_NATIVE, meaning the DCR generic layer which allows
using either DCR_NATIVE or DCR_MMIO is also unnecessary, remove it too.

Signed-off-by: Michael Ellerman 
Signed-off-by: Madhavan Srinivasan 
Link: https://patch.msgid.link/20241218105523.416573-7-mpe@ellerman.id.au

powerpc: Remove PPC_PMI and driver

2025-02-26T15:45:07+00:00

CONFIG_PPC_PMI is no longer selectable now that PPC_IBM_CELL_BLADE has
been removed, via the dependency on PPC_IBM_CELL_POWERBUTTON.

So remove it and the driver, and the pmi.h header which it was the only
user of.

Signed-off-by: Michael Ellerman 
Signed-off-by: Madhavan Srinivasan 
Link: https://patch.msgid.link/20241218105523.416573-3-mpe@ellerman.id.au

arch/powerpc: Remove unused function icp_native_cause_ipi_rm()

2025-02-24T06:56:21+00:00

Remove icp_native_cause_ipi_rm() as it has no callers since
commit 53af3ba2e819("KVM: PPC: Book3S HV: Allow guest exit path to have
MMU on")

Signed-off-by: Gautam Menghani 
Reviewed-by: Ritesh Harjani (IBM) 
Signed-off-by: Madhavan Srinivasan 
Link: https://patch.msgid.link/20250101134251.436679-1-gautam@linux.ibm.com

powerpc/ipic: Stop printing address of registers

2025-02-24T06:56:21+00:00

The following line appears at boot:

	IPIC (128 IRQ sources) at (ptrval)

This is pointless so remove the printing of the virtual address and
replace it by matching physical address.

Signed-off-by: Christophe Leroy 
Signed-off-by: Madhavan Srinivasan 
Link: https://patch.msgid.link/ecffb21d88405f99e7ffc906a733396c57c36d50.1736405302.git.christophe.leroy@csgroup.eu