[PATCH v2 00/57] irqdomain: Cleanups and Documentation

[PATCH v2 00/57] irqdomain: Cleanups and Documentation

[Jiri Slaby (SUSE)]

Hi,

tl;dr if patches are agreed upon, I ask subsys maintainers to take the
respective ones via their trees (as they are split per subsys), so that
the IRQ tree can take only the rest. That would minimize churn/conflicts
during merges.

===

While I was reading through the irqdomain code and headers, I found some
naming and documentation hard to follow or incomplete. Especially the
naming of _add/_create/_instantiate functions.

I tried to come up with a better state with this patchset:
* only irq _domain_ (not host),
* only irq_domain_create*() functions, all taking fwnode uniformly,

Finally, all the irqdomain stuff is now plugged (and generated) into
Documentation. So that everyone can walk through it at
https://www.kernel.org/doc/ (once applied, of course).

Changelog
---------
[v2]
- 'extern' removal patch dropped (already merged into tip),
- some new patches added,
- only _create*() functions preserved, all _add*() are removed,
  as per <87wme3m4a9.ffs@tglx>.

Cc: Aaro Koskinen <aaro.koskinen@iki.fi>
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Cc: Alex Deucher <alexander.deucher@amd.com>
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Cc: Yanteng Si <si.yanteng@linux.dev>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Zhang Rui <rui.zhang@intel.com>

Jiri Slaby (SUSE) (57):
  irqdomain: um: use irq_domain_create_linear() helper
  irqdomain: Rename irq_set_default_host() to irq_set_default_domain()
  irqdomain: Rename irq_get_default_host() to irq_get_default_domain()
  irqdomain.h: Stop using 'host' for domain
  irqdomain: cdx: Switch to of_fwnode_handle()
  irqdomain: irqchip: Switch to of_fwnode_handle()
  irqdomain: pci: Switch to of_fwnode_handle()
  irqdomain: ppc: Switch to of_fwnode_handle()
  irqdomain: remoteproc: Switch to of_fwnode_handle()
  irqdomain: x86: Switch to of_fwnode_handle()
  irqdomain: Drop of_node_to_fwnode()
  irqdomain: Make irq_domain_create_hierarchy() an inline
  irqdomain: arc: Switch to irq_domain_create_linear()
  irqdomain: arm: Switch to irq_domain_create_*()
  irqdomain: bus: Switch to irq_domain_create_simple()
  irqdomain: edac: Switch to irq_domain_create_linear()
  irqdomain: gpio: Switch to irq_domain_create_*()
  irqdomain: gpu: Switch to irq_domain_create_linear()
  irqdomain: i2c: Switch to irq_domain_create_linear()
  irqdomain: iio: Switch to irq_domain_create_simple()
  irqdomain: irqchip: Switch to irq_domain_create_*()
  irqdomain: mailbox: Switch to irq_domain_create_tree()
  irqdomain: memory: Switch to irq_domain_create_linear()
  irqdomain: mfd: Switch to irq_domain_create_*()
  irqdomain: mips: Switch to irq_domain_create_*()
  irqdomain: misc: Switch to irq_domain_create_simple()
  irqdomain: net: Switch to irq_domain_create_*()
  irqdomain: nios2: Switch to irq_domain_create_linear()
  irqdomain: pci: Switch to irq_domain_create_linear()
  irqdomain: pinctrl: Switch to irq_domain_create_*()
  irqdomain: platform/x86: Switch to irq_domain_create_linear()
  irqdomain: ppc: Switch to irq_domain_create_*()
  irqdomain: sh: Switch to irq_domain_create_*()
  irqdomain: soc: Switch to irq_domain_create_*()
  irqdomain: sound: Switch to irq_domain_create_linear()
  irqdomain: spmi: Switch to irq_domain_create_tree()
  irqdomain: ssb: Switch to irq_domain_create_linear()
  irqdomain: thermal: Switch to irq_domain_create_linear()
  irqdomain: ppc: Switch irq_domain_add_nomap() to use fwnode
  irqdomain: Drop irq_domain_add_*() functions
  irqdomain: ppc: Switch to irq_find_mapping()
  irqdomain: sh: Switch to irq_find_mapping()
  irqdomain: gpio: Switch to irq_find_mapping()
  irqdomain: gpu: Switch to irq_find_mapping()
  irqdomain: i2c: Switch to irq_find_mapping()
  irqdomain: irqchip: Switch to irq_find_mapping()
  irqdomain: pinctrl: Switch to irq_find_mapping()
  irqdomain: soc: Switch to irq_find_mapping()
  irqdomain: Drop irq_linear_revmap()
  irqdomain: Use irq_domain_instantiate() retvals as initializers
  irqdomain: Make struct irq_domain_info variables const
  irqdomain.h: Improve kernel-docs of functions
  docs: irq/concepts: Add commas and reflow
  docs: irq/concepts: Minor improvements
  docs: irq-domain.rst: Simple improvements
  docs: irqdomain: Update
  irqdomain.c: Fix kernel-doc and add it to Documentation

 Documentation/core-api/genericirq.rst         |   2 -
 Documentation/core-api/irq/concepts.rst       |  27 +--
 Documentation/core-api/irq/irq-domain.rst     | 202 +++++++++--------
 .../zh_CN/core-api/irq/irq-domain.rst         |   8 +-
 arch/arc/kernel/intc-arcv2.c                  |   4 +-
 arch/arc/kernel/intc-compact.c                |   7 +-
 arch/arc/kernel/mcip.c                        |   3 +-
 arch/arm/common/sa1111.c                      |   6 +-
 arch/arm/mach-exynos/suspend.c                |   5 +-
 arch/arm/mach-imx/avic.c                      |   4 +-
 arch/arm/mach-imx/gpc.c                       |   5 +-
 arch/arm/mach-imx/tzic.c                      |   4 +-
 arch/arm/mach-omap1/irq.c                     |   3 +-
 arch/arm/mach-omap2/omap-wakeupgen.c          |   5 +-
 arch/arm/mach-pxa/irq.c                       |   7 +-
 arch/arm/plat-orion/gpio.c                    |  12 +-
 arch/mips/ath25/ar2315.c                      |   4 +-
 arch/mips/ath25/ar5312.c                      |   4 +-
 arch/mips/cavium-octeon/octeon-irq.c          |  31 +--
 arch/mips/lantiq/irq.c                        |   2 +-
 arch/mips/pci/pci-ar2315.c                    |   4 +-
 arch/mips/pci/pci-rt3883.c                    |   7 +-
 arch/mips/pci/pci-xtalk-bridge.c              |   2 +-
 arch/mips/ralink/irq.c                        |   2 +-
 arch/mips/sgi-ip27/ip27-irq.c                 |   2 +-
 arch/mips/sgi-ip30/ip30-irq.c                 |   2 +-
 arch/nios2/kernel/irq.c                       |   5 +-
 arch/powerpc/kvm/book3s_hv.c                  |   2 +-
 arch/powerpc/kvm/book3s_xive.c                |   2 +-
 arch/powerpc/platforms/44x/uic.c              |   9 +-
 .../powerpc/platforms/512x/mpc5121_ads_cpld.c |   3 +-
 arch/powerpc/platforms/52xx/media5200.c       |   2 +-
 arch/powerpc/platforms/52xx/mpc52xx_gpt.c     |   6 +-
 arch/powerpc/platforms/52xx/mpc52xx_pic.c     |   6 +-
 .../platforms/85xx/socrates_fpga_pic.c        |   4 +-
 arch/powerpc/platforms/8xx/cpm1-ic.c          |   5 +-
 arch/powerpc/platforms/8xx/pic.c              |   5 +-
 arch/powerpc/platforms/amigaone/setup.c       |   2 +-
 arch/powerpc/platforms/chrp/setup.c           |   2 +-
 .../platforms/embedded6xx/flipper-pic.c       |   9 +-
 arch/powerpc/platforms/embedded6xx/hlwd-pic.c |   7 +-
 arch/powerpc/platforms/pasemi/setup.c         |   2 +-
 arch/powerpc/platforms/powermac/pic.c         |   9 +-
 arch/powerpc/platforms/powermac/smp.c         |   2 +-
 arch/powerpc/platforms/powernv/opal-irqchip.c |   3 +-
 arch/powerpc/platforms/powernv/pci-ioda.c     |   4 +-
 arch/powerpc/platforms/ps3/interrupt.c        |   4 +-
 arch/powerpc/platforms/pseries/msi.c          |   4 +-
 arch/powerpc/sysdev/cpm2_pic.c                |   5 +-
 arch/powerpc/sysdev/ehv_pic.c                 |   9 +-
 arch/powerpc/sysdev/fsl_msi.c                 |   2 +-
 arch/powerpc/sysdev/ge/ge_pic.c               |   7 +-
 arch/powerpc/sysdev/i8259.c                   |   4 +-
 arch/powerpc/sysdev/ipic.c                    |   9 +-
 arch/powerpc/sysdev/mpic.c                    |  12 +-
 arch/powerpc/sysdev/tsi108_pci.c              |   4 +-
 arch/powerpc/sysdev/xics/xics-common.c        |   2 +-
 arch/powerpc/sysdev/xive/common.c             |   4 +-
 arch/sh/boards/mach-se/7343/irq.c             |   7 +-
 arch/sh/boards/mach-se/7722/irq.c             |   4 +-
 arch/sh/boards/mach-x3proto/gpio.c            |   2 +-
 arch/um/drivers/virt-pci.c                    |  15 +-
 arch/x86/kernel/apic/io_apic.c                |   2 +-
 arch/x86/kernel/apic/vector.c                 |   2 +-
 drivers/bus/moxtet.c                          |   6 +-
 drivers/cdx/cdx_msi.c                         |   4 +-
 drivers/edac/altera_edac.c                    |   4 +-
 drivers/gpio/gpio-brcmstb.c                   |   2 +-
 drivers/gpio/gpio-davinci.c                   |   5 +-
 drivers/gpio/gpio-em.c                        |   5 +-
 drivers/gpio/gpio-grgpio.c                    |   2 +-
 drivers/gpio/gpio-idt3243x.c                  |   2 +-
 drivers/gpio/gpio-lpc18xx.c                   |   8 +-
 drivers/gpio/gpio-mvebu.c                     |   2 +-
 drivers/gpio/gpio-mxc.c                       |   2 +-
 drivers/gpio/gpio-mxs.c                       |   4 +-
 drivers/gpio/gpio-pxa.c                       |   6 +-
 drivers/gpio/gpio-rockchip.c                  |   2 +-
 drivers/gpio/gpio-sa1100.c                    |   2 +-
 drivers/gpio/gpio-sodaville.c                 |   2 +-
 drivers/gpio/gpio-tb10x.c                     |   2 +-
 drivers/gpio/gpio-twl4030.c                   |   5 +-
 drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c       |   4 +-
 drivers/gpu/drm/msm/msm_mdss.c                |   2 +-
 drivers/gpu/ipu-v3/ipu-common.c               |   8 +-
 drivers/i2c/busses/i2c-cht-wc.c               |   2 +-
 drivers/i2c/muxes/i2c-mux-pca954x.c           |   8 +-
 drivers/iio/adc/stm32-adc-core.c              |   7 +-
 drivers/irqchip/exynos-combiner.c             |   2 +-
 drivers/irqchip/irq-al-fic.c                  |   2 +-
 drivers/irqchip/irq-alpine-msi.c              |   7 +-
 drivers/irqchip/irq-apple-aic.c               |   4 +-
 drivers/irqchip/irq-armada-370-xp.c           |  18 +-
 drivers/irqchip/irq-aspeed-i2c-ic.c           |   2 +-
 drivers/irqchip/irq-aspeed-intc.c             |   2 +-
 drivers/irqchip/irq-aspeed-scu-ic.c           |   2 +-
 drivers/irqchip/irq-aspeed-vic.c              |   4 +-
 drivers/irqchip/irq-ath79-misc.c              |   4 +-
 drivers/irqchip/irq-atmel-aic-common.c        |   2 +-
 drivers/irqchip/irq-bcm2712-mip.c             |   4 +-
 drivers/irqchip/irq-bcm2835.c                 |   2 +-
 drivers/irqchip/irq-bcm2836.c                 |   2 +-
 drivers/irqchip/irq-bcm6345-l1.c              |   2 +-
 drivers/irqchip/irq-bcm7038-l1.c              |   2 +-
 drivers/irqchip/irq-bcm7120-l2.c              |   2 +-
 drivers/irqchip/irq-brcmstb-l2.c              |   2 +-
 drivers/irqchip/irq-clps711x.c                |   6 +-
 drivers/irqchip/irq-crossbar.c                |   6 +-
 drivers/irqchip/irq-csky-apb-intc.c           |   2 +-
 drivers/irqchip/irq-csky-mpintc.c             |   2 +-
 drivers/irqchip/irq-davinci-cp-intc.c         |   6 +-
 drivers/irqchip/irq-digicolor.c               |   2 +-
 drivers/irqchip/irq-dw-apb-ictl.c             |   2 +-
 drivers/irqchip/irq-ftintc010.c               |   5 +-
 drivers/irqchip/irq-gic-v3-its-fsl-mc-msi.c   |   2 +-
 drivers/irqchip/irq-gic-v3.c                  |   4 +-
 drivers/irqchip/irq-goldfish-pic.c            |   7 +-
 drivers/irqchip/irq-hip04.c                   |   6 +-
 drivers/irqchip/irq-i8259.c                   |   4 +-
 drivers/irqchip/irq-idt3243x.c                |   2 +-
 drivers/irqchip/irq-imgpdc.c                  |   2 +-
 drivers/irqchip/irq-imx-gpcv2.c               |   6 +-
 drivers/irqchip/irq-imx-intmux.c              |   2 +-
 drivers/irqchip/irq-imx-irqsteer.c            |   2 +-
 drivers/irqchip/irq-ingenic-tcu.c             |   4 +-
 drivers/irqchip/irq-ingenic.c                 |   4 +-
 drivers/irqchip/irq-ixp4xx.c                  |   2 +-
 drivers/irqchip/irq-jcore-aic.c               |   5 +-
 drivers/irqchip/irq-keystone.c                |   4 +-
 drivers/irqchip/irq-lan966x-oic.c             |   2 +-
 drivers/irqchip/irq-loongarch-cpu.c           |   2 +-
 drivers/irqchip/irq-loongson-eiointc.c        |   2 +-
 drivers/irqchip/irq-loongson-htvec.c          |   2 +-
 drivers/irqchip/irq-loongson-liointc.c        |   2 +-
 drivers/irqchip/irq-loongson-pch-msi.c        |   2 +-
 drivers/irqchip/irq-loongson-pch-pic.c        |   2 +-
 drivers/irqchip/irq-lpc32xx.c                 |   4 +-
 drivers/irqchip/irq-ls-extirq.c               |   4 +-
 drivers/irqchip/irq-ls-scfg-msi.c             |  10 +-
 drivers/irqchip/irq-ls1x.c                    |   4 +-
 drivers/irqchip/irq-mchp-eic.c                |   5 +-
 drivers/irqchip/irq-meson-gpio.c              |   2 +-
 drivers/irqchip/irq-mips-cpu.c                |  13 +-
 drivers/irqchip/irq-mips-gic.c                |  15 +-
 drivers/irqchip/irq-mmp.c                     |  12 +-
 drivers/irqchip/irq-mscc-ocelot.c             |   4 +-
 drivers/irqchip/irq-mst-intc.c                |   4 +-
 drivers/irqchip/irq-mtk-cirq.c                |   5 +-
 drivers/irqchip/irq-mtk-sysirq.c              |   4 +-
 drivers/irqchip/irq-mvebu-gicp.c              |   2 +-
 drivers/irqchip/irq-mvebu-odmi.c              |   2 +-
 drivers/irqchip/irq-mvebu-pic.c               |   4 +-
 drivers/irqchip/irq-mvebu-sei.c               |   6 +-
 drivers/irqchip/irq-mxs.c                     |   4 +-
 drivers/irqchip/irq-nvic.c                    |   2 +-
 drivers/irqchip/irq-omap-intc.c               |   4 +-
 drivers/irqchip/irq-or1k-pic.c                |   4 +-
 drivers/irqchip/irq-orion.c                   |   6 +-
 drivers/irqchip/irq-owl-sirq.c                |   4 +-
 drivers/irqchip/irq-pic32-evic.c              |   8 +-
 drivers/irqchip/irq-pruss-intc.c              |   4 +-
 drivers/irqchip/irq-qcom-mpm.c                |   2 +-
 drivers/irqchip/irq-realtek-rtl.c             |   2 +-
 drivers/irqchip/irq-renesas-intc-irqpin.c     |   6 +-
 drivers/irqchip/irq-renesas-irqc.c            |   4 +-
 drivers/irqchip/irq-renesas-rza1.c            |   6 +-
 drivers/irqchip/irq-renesas-rzg2l.c           |   6 +-
 drivers/irqchip/irq-renesas-rzv2h.c           |   5 +-
 drivers/irqchip/irq-riscv-intc.c              |   2 +-
 drivers/irqchip/irq-sa11x0.c                  |   2 +-
 drivers/irqchip/irq-sni-exiu.c                |   6 +-
 drivers/irqchip/irq-sp7021-intc.c             |   4 +-
 drivers/irqchip/irq-starfive-jh8100-intc.c    |   4 +-
 drivers/irqchip/irq-stm32-exti.c              |   4 +-
 drivers/irqchip/irq-stm32mp-exti.c            |   9 +-
 drivers/irqchip/irq-sun4i.c                   |   2 +-
 drivers/irqchip/irq-sun6i-r.c                 |   4 +-
 drivers/irqchip/irq-sunxi-nmi.c               |   2 +-
 drivers/irqchip/irq-tb10x.c                   |   8 +-
 drivers/irqchip/irq-tegra.c                   |   5 +-
 drivers/irqchip/irq-ti-sci-inta.c             |  10 +-
 drivers/irqchip/irq-ti-sci-intr.c             |   7 +-
 drivers/irqchip/irq-ts4800.c                  |   2 +-
 drivers/irqchip/irq-uniphier-aidet.c          |   2 +-
 drivers/irqchip/irq-versatile-fpga.c          |   4 +-
 drivers/irqchip/irq-vf610-mscm-ir.c           |   6 +-
 drivers/irqchip/irq-vic.c                     |   5 +-
 drivers/irqchip/irq-vt8500.c                  |   2 +-
 drivers/irqchip/irq-wpcm450-aic.c             |   2 +-
 drivers/irqchip/irq-xilinx-intc.c             |   6 +-
 drivers/irqchip/irq-xtensa-mx.c               |   7 +-
 drivers/irqchip/irq-xtensa-pic.c              |   8 +-
 drivers/irqchip/irq-zevio.c                   |   4 +-
 drivers/irqchip/spear-shirq.c                 |   2 +-
 drivers/mailbox/qcom-ipcc.c                   |   4 +-
 drivers/memory/omap-gpmc.c                    |   6 +-
 drivers/mfd/88pm860x-core.c                   |   4 +-
 drivers/mfd/ab8500-core.c                     |   6 +-
 drivers/mfd/arizona-irq.c                     |   3 +-
 drivers/mfd/db8500-prcmu.c                    |   6 +-
 drivers/mfd/fsl-imx25-tsadc.c                 |   5 +-
 drivers/mfd/lp8788-irq.c                      |   2 +-
 drivers/mfd/max8925-core.c                    |   4 +-
 drivers/mfd/max8997-irq.c                     |   4 +-
 drivers/mfd/max8998-irq.c                     |   2 +-
 drivers/mfd/mt6358-irq.c                      |   6 +-
 drivers/mfd/mt6397-irq.c                      |   6 +-
 drivers/mfd/qcom-pm8xxx.c                     |   6 +-
 drivers/mfd/stmfx.c                           |   2 +-
 drivers/mfd/stmpe.c                           |   4 +-
 drivers/mfd/tc3589x.c                         |   6 +-
 drivers/mfd/tps65217.c                        |   2 +-
 drivers/mfd/tps6586x.c                        |   2 +-
 drivers/mfd/twl4030-irq.c                     |   4 +-
 drivers/mfd/twl6030-irq.c                     |   5 +-
 drivers/mfd/wm831x-irq.c                      |  15 +-
 drivers/mfd/wm8994-irq.c                      |   4 +-
 drivers/misc/hi6421v600-irq.c                 |   5 +-
 drivers/net/dsa/microchip/ksz_common.c        |   5 +-
 drivers/net/dsa/microchip/ksz_ptp.c           |   4 +-
 drivers/net/dsa/mv88e6xxx/chip.c              |   2 +-
 drivers/net/dsa/mv88e6xxx/global2.c           |   6 +-
 drivers/net/dsa/qca/ar9331.c                  |   4 +-
 drivers/net/dsa/realtek/rtl8365mb.c           |   4 +-
 drivers/net/dsa/realtek/rtl8366rb.c           |   6 +-
 .../net/ethernet/wangxun/txgbe/txgbe_irq.c    |   6 +-
 drivers/net/usb/lan78xx.c                     |   9 +-
 drivers/pci/controller/dwc/pci-dra7xx.c       |   4 +-
 drivers/pci/controller/dwc/pci-keystone.c     |   2 +-
 .../pci/controller/dwc/pcie-designware-host.c |   2 +-
 drivers/pci/controller/dwc/pcie-dw-rockchip.c |   4 +-
 drivers/pci/controller/dwc/pcie-uniphier.c    |   2 +-
 .../controller/mobiveil/pcie-mobiveil-host.c  |  11 +-
 drivers/pci/controller/pci-aardvark.c         |  14 +-
 drivers/pci/controller/pci-ftpci100.c         |   4 +-
 drivers/pci/controller/pci-mvebu.c            |   6 +-
 drivers/pci/controller/pci-xgene-msi.c        |   5 +-
 drivers/pci/controller/pcie-altera-msi.c      |   4 +-
 drivers/pci/controller/pcie-altera.c          |   2 +-
 drivers/pci/controller/pcie-brcmstb.c         |   4 +-
 drivers/pci/controller/pcie-iproc-msi.c       |   6 +-
 drivers/pci/controller/pcie-mediatek-gen3.c   |   9 +-
 drivers/pci/controller/pcie-mediatek.c        |   6 +-
 drivers/pci/controller/pcie-rockchip-host.c   |   4 +-
 drivers/pci/controller/pcie-xilinx-cpm.c      |  10 +-
 drivers/pci/controller/pcie-xilinx-dma-pl.c   |  14 +-
 drivers/pci/controller/pcie-xilinx-nwl.c      |  11 +-
 drivers/pci/controller/pcie-xilinx.c          |   5 +-
 drivers/pci/controller/plda/pcie-plda-host.c  |  16 +-
 drivers/pinctrl/mediatek/mtk-eint.c           |   5 +-
 drivers/pinctrl/pinctrl-at91-pio4.c           |   2 +-
 drivers/pinctrl/pinctrl-keembay.c             |   2 +-
 drivers/pinctrl/pinctrl-single.c              |   9 +-
 drivers/pinctrl/sunxi/pinctrl-sunxi.c         |   7 +-
 drivers/platform/x86/asus-tf103c-dock.c       |   2 +-
 drivers/remoteproc/pru_rproc.c                |   2 +-
 drivers/sh/intc/irqdomain.c                   |   5 +-
 drivers/soc/dove/pmu.c                        |   4 +-
 drivers/soc/fsl/qe/qe_ic.c                    |   8 +-
 drivers/soc/qcom/smp2p.c                      |   2 +-
 drivers/soc/qcom/smsm.c                       |   2 +-
 drivers/soc/tegra/pmc.c                       |   5 +-
 drivers/spmi/spmi-pmic-arb.c                  |   2 +-
 drivers/ssb/driver_gpio.c                     |   8 +-
 drivers/thermal/qcom/lmh.c                    |   3 +-
 drivers/thermal/tegra/soctherm.c              |   2 +-
 include/linux/gpio/driver.h                   |   5 +-
 include/linux/irqdomain.h                     | 211 ++++++++----------
 kernel/irq/irqdomain.c                        |  88 +-------
 sound/soc/codecs/wcd937x.c                    |   2 +-
 sound/soc/codecs/wcd938x.c                    |   2 +-
 sound/soc/codecs/wcd939x.c                    |   2 +-
 272 files changed, 838 insertions(+), 945 deletions(-)

-- 
2.49.0

[PATCH v2 33/57] irqdomain: sh: Switch to irq_domain_create_*()

[Jiri Slaby (SUSE)]

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).

Signed-off-by: Jiri Slaby (SUSE) <jirislaby@kernel.org>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Rich Felker <dalias@libc.org>
Cc: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Cc: linux-sh@vger.kernel.org
---
 arch/sh/boards/mach-se/7343/irq.c  | 5 +++--
 arch/sh/boards/mach-se/7722/irq.c  | 2 +-
 arch/sh/boards/mach-x3proto/gpio.c | 2 +-
 drivers/sh/intc/irqdomain.c        | 5 ++---
 4 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/arch/sh/boards/mach-se/7343/irq.c b/arch/sh/boards/mach-se/7343/irq.c
index f9f3b14f70d5..8241bdedcc82 100644
--- a/arch/sh/boards/mach-se/7343/irq.c
+++ b/arch/sh/boards/mach-se/7343/irq.c
@@ -47,8 +47,9 @@ static void __init se7343_domain_init(void)
 {
 	int i;
 
-	se7343_irq_domain = irq_domain_add_linear(NULL, SE7343_FPGA_IRQ_NR,
-						  &irq_domain_simple_ops, NULL);
+	se7343_irq_domain = irq_domain_create_linear(NULL, SE7343_FPGA_IRQ_NR,
+						     &irq_domain_simple_ops,
+						     NULL);
 	if (unlikely(!se7343_irq_domain)) {
 		printk("Failed to get IRQ domain\n");
 		return;
diff --git a/arch/sh/boards/mach-se/7722/irq.c b/arch/sh/boards/mach-se/7722/irq.c
index efa96edd47dc..9a460a81907f 100644
--- a/arch/sh/boards/mach-se/7722/irq.c
+++ b/arch/sh/boards/mach-se/7722/irq.c
@@ -46,7 +46,7 @@ static void __init se7722_domain_init(void)
 {
 	int i;
 
-	se7722_irq_domain = irq_domain_add_linear(NULL, SE7722_FPGA_IRQ_NR,
+	se7722_irq_domain = irq_domain_create_linear(NULL, SE7722_FPGA_IRQ_NR,
 						  &irq_domain_simple_ops, NULL);
 	if (unlikely(!se7722_irq_domain)) {
 		printk("Failed to get IRQ domain\n");
diff --git a/arch/sh/boards/mach-x3proto/gpio.c b/arch/sh/boards/mach-x3proto/gpio.c
index f82d3a6a844a..c13d51b29702 100644
--- a/arch/sh/boards/mach-x3proto/gpio.c
+++ b/arch/sh/boards/mach-x3proto/gpio.c
@@ -108,7 +108,7 @@ int __init x3proto_gpio_setup(void)
 	if (unlikely(ret))
 		goto err_gpio;
 
-	x3proto_irq_domain = irq_domain_add_linear(NULL, NR_BASEBOARD_GPIOS,
+	x3proto_irq_domain = irq_domain_create_linear(NULL, NR_BASEBOARD_GPIOS,
 						   &x3proto_gpio_irq_ops, NULL);
 	if (unlikely(!x3proto_irq_domain))
 		goto err_irq;
diff --git a/drivers/sh/intc/irqdomain.c b/drivers/sh/intc/irqdomain.c
index 3968f1c3c5c3..ed7a570ffdf2 100644
--- a/drivers/sh/intc/irqdomain.c
+++ b/drivers/sh/intc/irqdomain.c
@@ -59,10 +59,9 @@ void __init intc_irq_domain_init(struct intc_desc_int *d,
 	 * tree penalty for linear cases with non-zero hwirq bases.
 	 */
 	if (irq_base == 0 && irq_end == (irq_base + hw->nr_vectors - 1))
-		d->domain = irq_domain_add_linear(NULL, hw->nr_vectors,
-						  &intc_evt_ops, NULL);
+		d->domain = irq_domain_create_linear(NULL, hw->nr_vectors, &intc_evt_ops, NULL);
 	else
-		d->domain = irq_domain_add_tree(NULL, &intc_evt_ops, NULL);
+		d->domain = irq_domain_create_tree(NULL, &intc_evt_ops, NULL);
 
 	BUG_ON(!d->domain);
 }
-- 
2.49.0

[PATCH v2 42/57] irqdomain: sh: Switch to irq_find_mapping()

[Jiri Slaby (SUSE)]

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

Signed-off-by: Jiri Slaby (SUSE) <jirislaby@kernel.org>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Rich Felker <dalias@libc.org>
Cc: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Cc: linux-sh@vger.kernel.org
---
 arch/sh/boards/mach-se/7343/irq.c | 2 +-
 arch/sh/boards/mach-se/7722/irq.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/sh/boards/mach-se/7343/irq.c b/arch/sh/boards/mach-se/7343/irq.c
index 8241bdedcc82..730c01b225bd 100644
--- a/arch/sh/boards/mach-se/7343/irq.c
+++ b/arch/sh/boards/mach-se/7343/irq.c
@@ -71,7 +71,7 @@ static void __init se7343_gc_init(void)
 	struct irq_chip_type *ct;
 	unsigned int irq_base;
 
-	irq_base = irq_linear_revmap(se7343_irq_domain, 0);
+	irq_base = irq_find_mapping(se7343_irq_domain, 0);
 
 	gc = irq_alloc_generic_chip(DRV_NAME, 1, irq_base, se7343_irq_regs,
 				    handle_level_irq);
diff --git a/arch/sh/boards/mach-se/7722/irq.c b/arch/sh/boards/mach-se/7722/irq.c
index 9a460a81907f..49aa3a2b1b8f 100644
--- a/arch/sh/boards/mach-se/7722/irq.c
+++ b/arch/sh/boards/mach-se/7722/irq.c
@@ -69,7 +69,7 @@ static void __init se7722_gc_init(void)
 	struct irq_chip_type *ct;
 	unsigned int irq_base;
 
-	irq_base = irq_linear_revmap(se7722_irq_domain, 0);
+	irq_base = irq_find_mapping(se7722_irq_domain, 0);
 
 	gc = irq_alloc_generic_chip(DRV_NAME, 1, irq_base, se7722_irq_regs,
 				    handle_level_irq);
-- 
2.49.0

Re: [PATCH v2 00/57] irqdomain: Cleanups and Documentation

[Andy Shevchenko]

On Wed, Mar 19, 2025 at 11:30 AM Jiri Slaby (SUSE) <jirislaby@kernel.org> wrote:
>
> Hi,
>
> tl;dr if patches are agreed upon, I ask subsys maintainers to take the
> respective ones via their trees (as they are split per subsys), so that
> the IRQ tree can take only the rest. That would minimize churn/conflicts
> during merges.
>
> ===
>
> While I was reading through the irqdomain code and headers, I found some
> naming and documentation hard to follow or incomplete. Especially the
> naming of _add/_create/_instantiate functions.
>
> I tried to come up with a better state with this patchset:
> * only irq _domain_ (not host),
> * only irq_domain_create*() functions, all taking fwnode uniformly,
>
> Finally, all the irqdomain stuff is now plugged (and generated) into
> Documentation. So that everyone can walk through it at
> https://www.kernel.org/doc/ (once applied, of course).

I am all to support the idea, but in some cases I would think of a bit
more work to be done to get rid of the of_fwnode_handle(np) in favour
of dev_fwnode(dev). Note, this is based on a brief look, I haven't any
example at hand right now.

-- 
With Best Regards,
Andy Shevchenko

Re: [PATCH v2 00/57] irqdomain: Cleanups and Documentation

[Jiri Slaby]

On 19. 03. 25, 11:21, Andy Shevchenko wrote:
> I am all to support the idea, but in some cases I would think of a bit
> more work to be done to get rid of the of_fwnode_handle(np) in favour
> of dev_fwnode(dev). Note, this is based on a brief look, I haven't any
> example at hand right now.

Aah, that's the helper I was looking for!

I was about to use dev->fwnode directly (see the commit log for the 
Switch to irq_domain_create_*()), but that is not guaranteed to be 
always properly set.

Will use this instead in v3.

thanks,
-- 
js
suse labs

Re: (subset) [PATCH v2 00/57] irqdomain: Cleanups and Documentation

[Mark Brown]

On Wed, 19 Mar 2025 10:28:53 +0100, Jiri Slaby (SUSE) wrote:
> tl;dr if patches are agreed upon, I ask subsys maintainers to take the
> respective ones via their trees (as they are split per subsys), so that
> the IRQ tree can take only the rest. That would minimize churn/conflicts
> during merges.
> 
> ===
> 
> [...]

Applied to

   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-next

Thanks!

[35/57] irqdomain: sound: Switch to irq_domain_create_linear()
        commit: 83eddf0116b09186f909bc643f2093f266f204ea

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

Thanks,
Mark

Re: (subset) [PATCH v2 00/57] irqdomain: Cleanups and Documentation

[Christophe Leroy]

On Wed, 19 Mar 2025 10:28:53 +0100, Jiri Slaby (SUSE) wrote:
> tl;dr if patches are agreed upon, I ask subsys maintainers to take the
> respective ones via their trees (as they are split per subsys), so that
> the IRQ tree can take only the rest. That would minimize churn/conflicts
> during merges.
> 
> ===
> 
> [...]

Applied, thanks!

[48/57] irqdomain: soc: Switch to irq_find_mapping()
        commit: a70a3a6322131632cc6cf71e9d2fa6409a029fd7

Best regards,
-- 
Christophe Leroy <christophe.leroy@csgroup.eu>

Re: [PATCH v2 00/57] irqdomain: Cleanups and Documentation

[Thomas Gleixner]

On Wed, Mar 19 2025 at 10:28, Jiri Slaby wrote:

> Hi,
>
> tl;dr if patches are agreed upon, I ask subsys maintainers to take the
> respective ones via their trees (as they are split per subsys), so that
> the IRQ tree can take only the rest. That would minimize churn/conflicts
> during merges.

So. It's rc5 by now and I picked up everything which did not show up in
next yet. As there are some patches in next, I delayed the removal of
functions for the merge window so that we don't end up with merge
dependencies.

To reducde conflicts, I grabbed the irq branch from the PCI tree under
the assumption that this branch is stable.

The series sits now in

   git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git irq/cleanups

and will be in next soon. If there are duplicates showing up in next,
I'm going to remove them from my branch, so the branch is not for basing
development on.

@Jiri, I fixed up all your subject prefixes as

  'irqdomain: subsys: Switch to foo()'

does not make any sense at all. These subsystems have their regular
prefixes and these changes do not justify made up irqdomain special
prefixes at all.

Thanks,

        tglx

Re: [PATCH v2 00/57] irqdomain: Cleanups and Documentation

[Jiri Slaby]

On 06. 05. 25, 15:41, Thomas Gleixner wrote:
> On Wed, Mar 19 2025 at 10:28, Jiri Slaby wrote:
> 
>> Hi,
>>
>> tl;dr if patches are agreed upon, I ask subsys maintainers to take the
>> respective ones via their trees (as they are split per subsys), so that
>> the IRQ tree can take only the rest. That would minimize churn/conflicts
>> during merges.
> 
> So. It's rc5 by now and I picked up everything

Good, thanks.

> which did not show up in next yet. 

Which is the majority -- routing through subsystems didn't work as well 
as I anticipated.

I planned to retry with v3 after the next merge window, but you were faster.

V3 contains a switch from nodes to dev_fwnode() in some cases. It 
simplifies the code there. This did not get lost, I will send this 
separately to maintainers once everything from this series settles in 
the tree. I.e. likely after the next merge window.

> @Jiri, I fixed up all your subject prefixes as
> 
>    'irqdomain: subsys: Switch to foo()'
> 
> does not make any sense at all. These subsystems have their regular
> prefixes and these changes do not justify made up irqdomain special
> prefixes at all.

Yes.

thanks,
-- 
js
suse labs