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[v11,00/38] ep93xx device tree conversion

Message ID 20240715-ep93xx-v11-0-4e924efda795@maquefel.me
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Series ep93xx device tree conversion | expand

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Nikita Shubin via B4 Relay July 15, 2024, 8:38 a.m. UTC 
The goal is to recieve ACKs for all patches in series to merge it via Arnd branch.

It was decided from the very beginning of these series, mostly because
it's a full conversion of platform code to DT and it seemed not
convenient to maintain compatibility with both platform and DT.

Following patches require attention from Stephen Boyd or clk subsystem:

- clk: ep93xx: add DT support for Cirrus EP93xx

It is purely possible to add something like devm_clk_hw_register_fixed_rate_parent_data() 
for devm managed version clk_hw_register_fixed_rate_parent_data(), still i would like to 
leave for the time after this series if it's all possible.

Couse may be it's better to add something like
devm_clk_hw_register_fixed_rate_index() like it's done for
devm_clk_hw_register_fixed_factor_index().

Changelog for this patch:
- added devm_ep93xx_clk_hw_register_fixed_rate_parent_data() for
  devm_ version of clk_hw_register_fixed_rate_parent_data()
- s/devm_clk_hw_register_fixed_rate()/devm_ep93xx_clk_hw_register_fixed_rate_parent_data()/
- replaced all devm_clk_hw_register_fixed_factor() to
  devm_clk_hw_register_fixed_factor_parent_hw() or
  devm_clk_hw_register_fixed_factor_index()
- s/devm_clk_hw_register_gate()/devm_clk_hw_register_gate_parent_data()

Stephen - it think that's you was aiming for - to get rid of all
functions that are using const char* parent_name directly instead of
clk_hw or clk_parent_data.

Patches should be formated with '--histogram'

---
Changes in v11:
- clk: ep93xx: add DT support for Cirrus EP93xx
  - added devm_ep93xx_clk_hw_register_fixed_rate_parent_data() for
    devm_ version of clk_hw_register_fixed_rate_parent_data()
  - s/devm_clk_hw_register_fixed_rate()/devm_ep93xx_clk_hw_register_fixed_rate_parent_data()/
  - replaced all devm_clk_hw_register_fixed_factor() to
    devm_clk_hw_register_fixed_factor_parent_hw() or
    devm_clk_hw_register_fixed_factor_index()
  - s/devm_clk_hw_register_gate()/devm_clk_hw_register_gate_parent_data()

- Link to v10: https://lore.kernel.org/r/20240617-ep93xx-v10-0-662e640ed811@maquefel.me

Changes in v10:

Reordered SoB tags to make sure they appear before Rb and Acked tags.

dmaengine: cirrus: Convert to DT for Cirrus EP93xx
    - s/dma/dmaengine/ title

dmaengine: cirrus: remove platform code
    - s/dma/dmaengine/ title

soc: Add SoC driver for Cirrus ep93xx:
    - added __init for ep93xx_adev_alloc(), ep93xx_controller_register()
    - added static, __initconst for pinctrl_names[]
    - clk revision for SPI is now resolved here through differently named
      clk device
    - more verbose Kconfig description

clk: ep93xx: add DT support for Cirrus EP93xx:
    - dropped includes
    - dropped ep93xx_soc_table[]
    - add different named clk and dropped involved includes
    - moved pll's and fclk, hclk, pclk init to separate function
    - fixed ep93xx_clk_ids[] explicit lines

- Link to v9: https://lore.kernel.org/r/20240326-ep93xx-v9-0-156e2ae5dfc8@maquefel.me
- Link to v2 clk: https://lore.kernel.org/r/20240408-ep93xx-clk-v2-1-adcd68c13753@maquefel.me

Changes in v9:

ARM: dts: add Cirrus EP93XX SoC .dtsi
    - added #interrupt-cells to gpio nodes with interrupts-controller
    - fixed EOF

ARM: dts: ep93xx: Add EDB9302 DT
    - Alexander Sverdlin: fixed bug in Device Tree resulting in CS4271 not working

input: keypad: ep93xx: add DT support for Cirrus EP93xx
    - fixed identation and type

- Link to v8: https://lore.kernel.org/r/20240226-ep93xx-v8-0-3136dca7238f@maquefel.me/

Changes in v8:

soc: Add SoC driver for Cirrus ep93xx
    - fixed freeing adev instead of rdev
    - use __free() and no_free_ptr() for rdev allocation
    - s/of_device_get_match_data()/device_get_match_data()/

ata: pata_ep93xx: add device tree support
    - more appropriate usage of dev_err_probe()

pinctrl: add a Cirrus ep93xx SoC pin controller
    - 8 per row in ide_9312_pins

mtd: rawnand: add support for ts72xx
    - fwnode_handle_put() for fwnode in ts72xx_nand_remove()

- Link to v7: https://lore.kernel.org/r/20240118-ep93xx-v7-0-d953846ae771@maquefel.me

Changes in v7:

mtd: rawnand: add support for ts72xx
    - fixed KConfig description

ARM: ep93xx: Add terminator to gpiod_lookup_table
    - + Reported-by, Fixes

ARM: ep93xx: add regmap aux_dev
    - + trailing comma
    - - #include <linux/spinlock.h>

clk: ep93xx: add DT support for Cirrus EP93xx
    - dropped unused defines
    - return from default in ep93xx_mux_get_parent()
    - use guard() in ep93xx_mux_set_parent_lock()
    - <math.h> header for abs_diff()
    - fixed comments

pinctrl: add a Cirrus ep93xx SoC pin controller
    - dropped comments for DEVCFG defines
    - <linux/array_size.h> for ARRAY_SIZE()
    - + default in ep93xx_get_group_name()
    - correct cast for id->driver_data
    - s/device_set_of_node_from_dev()/device_set_node()/

power: reset: Add a driver for the ep93xx reset
    - Add <linux/container_of.h>, <linux/errno.h>, <linux/slab.h>
    - Add <linux/module.h>, <linux/mod_devicetable.h>
    - Remove <platform_device.h>

spi: ep93xx: add DT support for Cirrus EP93xx
    - Replace with ret = dev_err_probe(...);

ata: pata_ep93xx: add device tree support
    - fixed wrong rebase with some partes leaked in "ata: pata_ep93xx: remove legacy pinctrl use"
    - fix dma_request_chan() error processing

dma: cirrus: Convert to DT for Cirrus EP93xx
    - fixed commit message (dropped explicit "only")
    - fixed clk_get() processing to defer probe and log spamming
    - refactor ep93xx_m2p_dma_filter()
    - dropped blank line in ep93xx_m2p_dma_of_xlate()
    - refactor ep93xx_m2m_dma_of_xlate()

dma: cirrus: remove platform code
    - s/dma/DMA/ in commit message

soc: Add SoC driver for Cirrus ep93xx
    - add period
    - use cleanup and guard() for spinlocking
    - correct cast for device_get_match_data()
    - dropped dev_info() with SoC revision - i can't find it anywhere since 2.6 :/,
      don't know why i was so sured that ep93xx always printed that

ata: pata_ep93xx: remove legacy pinctrl use
    - made error handling in DMA as Uwe suggested

- Link to v6: https://lore.kernel.org/r/20231212-ep93xx-v6-0-c307b8ac9aa8@maquefel.me

Changes in v6:

- clk: ep93xx: add DT support for Cirrus EP93xx
  - s/spin_lock_irqsave()/guard()/
  - refactor index check in ep93xx_mux_set_parent_lock() to something more readable
  - use in_range in ep93xx_mux_set_parent_lock()/ep93xx_ddiv_set_rate()
  - use GENMASK() in ep93xx_ddiv_recalc_rate()
  - comment reserved bit in ep93xx_ddiv_set_rate()
  - move out from loop ClkDiv value assigment
  - some style fixes

Andy, i was i asked to set index of XTALI explicitly, i am not setting ddiv_pdata
there becouse only XTALI is jnown in advance, and i think setting them in one place is more convenient.

- pinctrl: add a Cirrus ep93xx SoC pin controller
  - drop OF from Kconfig
  - droped linux/of.h include
  - add space to */ where it is applicable
  - add coma in multiline assigment
  - "return NULL" as default case in ep93xx_get_group_name()
  - fixed casting id->driver_data
  - use device_set_of_node_from_dev()
  - use dev_err_probe()

- power: reset: Add a driver for the ep93xx reset
  - drop linux/of.h include

- soc: Add SoC driver for Cirrus ep93xx
  - s/GPL-2.0/GPL-2.0-only/
  - drop linux/kernel.h include
  - + blank line before linux/soc/cirrus/ep93xx.h
  - + blank line after ep93xx_get_soc_rev()
  - + coma for pinctrl_names
  - valid casting to int for of_device_get_match_data() return value

- mtd: rawnand: add support for ts72xx
  - return as part of switch case
  - s/iowrite8/iowrite8_rep/

- net: cirrus: add DT support for Cirrus EP93xx
  - fix header sorting

- dma: cirrus: Convert to DT for Cirrus EP93xx
  - use devm_clk_get
  - use is_slave_direction

Changes in v5:

- gpio: ep93xx: split device in multiple
  - ordered headers
  - use irqd_to_hwirq()
  - s/platform_get_irq()/platform_get_irq_optional()/

- [PATCH v4 02/42] ARM: ep93xx: add swlocked prototypes
  - replaced with ARM: ep93xx: add regmap aux_dev

- [PATCH v4 03/42] dt-bindings: clock: Add Cirrus EP93xx
  - fixed identation
  - removed EP93XX_CLK_END
  - and dropped it
  - clock bindings moved to syscon with renaming to cirrus,ep9301-syscon.h

- clk: ep93xx: add DT support for Cirrus EP93xx
  - convert to auxiliary and use parent device tree node
  - moved all clocks except XTALI here
  - used devm version everywhere and *_parent_hw() instead of passing name where it's possible
  - unfortunately devm_clk_hw_register_fixed_rate doesn't have a parent index version

- [PATCH v4 05/42] dt-bindings: pinctrl: Add Cirrus EP93xx
  - "unevaluatedProperties: false" for pins
  - returned "additionalProperties: false" where it was
  - and dropped it

- pinctrl: add a Cirrus ep93xx SoC pin controller
  - sorted includes
  - convert to auxiliary and use parent device tree node

- power: reset: Add a driver for the ep93xx reset
  - convert to auxiliary device

- dt-bindings: soc: Add Cirrus EP93xx
  - dropped all ref to reboot, clk, pinctrl subnodes
  - added pins, as it's now used for pinctrl
  - added #clock-cells, as it's now used for clk

- dt-bindings: pwm: Add Cirrus EP93xx
  - $ref to pwm.yaml
  - fixed 'pwm-cells'
  - s/additionalProperties/unevaluatedProperties/

- soc: Add SoC driver for Cirrus ep93xx
  - removed clocks, they are moved to clk auxiliary driver, as we dropped the clk dt node
  - removed all swlocked exported functions
  - dropped static spinlock
  - added instantiating auxiliary reboot, clk, pinctrl

- dt-bindings: spi: Add Cirrus EP93xx
  - Document DMA support

- spi: ep93xx: add DT support for Cirrus EP93xx
  - dropped CONFIG_OF and SPI/DMA platform data entirely
  - s/master/host/
  - reworked DMA setup so we can use probe defer

- dt-bindings: dma: Add Cirrus EP93xx
  - dropped bindings header (moved ports description to YAML)
  - changed '#dma-cells' to 2, we use port, direction in cells so we can drop platform code completely

- dma: cirrus: add DT support for Cirrus EP93xx
  - dropped platform probing completely
  - dropped struct ep93xx_dma_data replaced with internal struct ep93xx_dma_chan_cfg with port/direction
  - added xlate functions for m2m/m2p
  - we require filters to set dma_cfg before hw_setup

- dt-bindings: ata: Add Cirrus EP93xx
  - Document DMA support

- ata: pata_ep93xx: add device tree support
  - drop DMA platform header with data
  - use DMA OF so we can defer probing until DMA is up

- ARM: dts: add Cirrus EP93XX SoC .dtsi
- ARM: dts: ep93xx: add ts7250 board
- ARM: dts: ep93xx: Add EDB9302 DT
  - replaced "eclk: clock-controller" to syscon reference
  - replaced "pinctrl: pinctrl" to syscon reference
  - gpios are now "enabled" by default
  - reworked i2s node
  - change all dma nodes and refs

- new additions to I2S
  - Document DMA
  - Document Audio Port usage
  - drop legacy DMA support

- Link to v4: https://lore.kernel.org/r/20230915-ep93xx-v4-0-a1d779dcec10@maquefel.me

Changes in v4:

- gpio: ep93xx: split device in multiple
  - s/generic_handle_irq/generic_handle_domain_irq/
  - s/int offset/irq_hw_number_t offset/ though now it looks a bit odd to me
  - drop i = 0
  - drop 'error'
  - use dev_err_probe withour printing devname once again

dt-bindings: clock: Add Cirrus EP93xx
  - renamed cirrus,ep93xx-clock.h -> cirrus,ep9301-clk.h

clk: ep93xx: add DT support for Cirrus EP93xx
  - drop unused includes
  - use .name only for xtali, pll1, pll2 parents
  - convert // to /*
  - pass clk_parent_data instead of char* clock name

dt-bindings: pinctrl: Add Cirrus EP93xx
  - s/additionalProperties/unevaluatedProperties/

dt-bindings: soc: Add Cirrus EP93xx
  - move syscon to soc directory
  - add vendor prefix
  - make reboot same style as pinctrl, clk
  - use absolute path for ref
  - expand example

soc: Add SoC driver for Cirrus ep93xx
  - s/0xf0000000/GENMASK(31, 28)/
  - s/ret/ep93xx_chip_revision(map)/
  - drop symbol exports
  - convert to platform driver

dt-bindings: rtc: Add Cirrus EP93xx
  - allOf: with $ref to rtc.yaml
  - s/additionalProperties/unevaluatedProperties/

dt-bindings: watchdog: Add Cirrus EP93x
  - drop description
  - reword

power: reset: Add a driver for the ep93xx reset
  - lets use 'GPL-2.0+' instead of '(GPL-2.0)'
  - s/of_device/of/
  - drop mdelay with warning
  - return 0 at the end

net: cirrus: add DT support for Cirrus EP93xx
  - fix leaking np

mtd: nand: add support for ts72xx
  - +bits.h
  - drop comment
  - ok to fwnode_get_next_child_node
  - use goto to put handle and nand and report error

ARM: dts: add Cirrus EP93XX SoC .dtsi
  - add simple-bus for ebi, as we don't require to setup anything
  - add arm,pl011 compatible to uart nodes
  - drop i2c-gpio, as it's isn't used anywhere

ARM: dts: ep93xx: add ts7250 board
  - generic node name for temperature-sensor
  - drop i2c
  - move nand, rtc, watchdog to ebi node

- Link to v3: https://lore.kernel.org/r/20230605-ep93xx-v3-0-3d63a5f1103e@maquefel.me

---
Alexander Sverdlin (3):
      ASoC: ep93xx: Drop legacy DMA support
      ARM: dts: ep93xx: Add EDB9302 DT
      ASoC: cirrus: edb93xx: Delete driver

Nikita Shubin (35):
      gpio: ep93xx: split device in multiple
      ARM: ep93xx: add regmap aux_dev
      clk: ep93xx: add DT support for Cirrus EP93xx
      pinctrl: add a Cirrus ep93xx SoC pin controller
      power: reset: Add a driver for the ep93xx reset
      dt-bindings: soc: Add Cirrus EP93xx
      soc: Add SoC driver for Cirrus ep93xx
      dt-bindings: dma: Add Cirrus EP93xx
      dmaengine: cirrus: Convert to DT for Cirrus EP93xx
      dt-bindings: watchdog: Add Cirrus EP93x
      watchdog: ep93xx: add DT support for Cirrus EP93xx
      dt-bindings: pwm: Add Cirrus EP93xx
      pwm: ep93xx: add DT support for Cirrus EP93xx
      dt-bindings: spi: Add Cirrus EP93xx
      spi: ep93xx: add DT support for Cirrus EP93xx
      dt-bindings: net: Add Cirrus EP93xx
      net: cirrus: add DT support for Cirrus EP93xx
      dt-bindings: mtd: Add ts7200 nand-controller
      mtd: rawnand: add support for ts72xx
      dt-bindings: ata: Add Cirrus EP93xx
      ata: pata_ep93xx: add device tree support
      dt-bindings: input: Add Cirrus EP93xx keypad
      input: keypad: ep93xx: add DT support for Cirrus EP93xx
      wdt: ts72xx: add DT support for ts72xx
      gpio: ep93xx: add DT support for gpio-ep93xx
      ASoC: dt-bindings: ep93xx: Document DMA support
      ASoC: dt-bindings: ep93xx: Document Audio Port support
      ARM: dts: add Cirrus EP93XX SoC .dtsi
      ARM: dts: ep93xx: add ts7250 board
      ARM: ep93xx: DT for the Cirrus ep93xx SoC platforms
      pwm: ep93xx: drop legacy pinctrl
      ata: pata_ep93xx: remove legacy pinctrl use
      ARM: ep93xx: delete all boardfiles
      ARM: ep93xx: soc: drop defines
      dmaengine: cirrus: remove platform code

 .../bindings/arm/cirrus/cirrus,ep9301.yaml         |   38 +
 .../bindings/ata/cirrus,ep9312-pata.yaml           |   42 +
 .../bindings/dma/cirrus,ep9301-dma-m2m.yaml        |   84 ++
 .../bindings/dma/cirrus,ep9301-dma-m2p.yaml        |  144 ++
 .../bindings/input/cirrus,ep9307-keypad.yaml       |   87 ++
 .../devicetree/bindings/mtd/technologic,nand.yaml  |   45 +
 .../devicetree/bindings/net/cirrus,ep9301-eth.yaml |   59 +
 .../devicetree/bindings/pwm/cirrus,ep9301-pwm.yaml |   53 +
 .../bindings/soc/cirrus/cirrus,ep9301-syscon.yaml  |   94 ++
 .../bindings/sound/cirrus,ep9301-i2s.yaml          |   16 +
 .../devicetree/bindings/spi/cirrus,ep9301-spi.yaml |   70 +
 .../bindings/watchdog/cirrus,ep9301-wdt.yaml       |   42 +
 arch/arm/Makefile                                  |    1 -
 arch/arm/boot/dts/cirrus/Makefile                  |    4 +
 arch/arm/boot/dts/cirrus/ep93xx-bk3.dts            |  125 ++
 arch/arm/boot/dts/cirrus/ep93xx-edb9302.dts        |  181 +++
 arch/arm/boot/dts/cirrus/ep93xx-ts7250.dts         |  145 ++
 arch/arm/boot/dts/cirrus/ep93xx.dtsi               |  444 ++++++
 arch/arm/mach-ep93xx/Kconfig                       |   20 +-
 arch/arm/mach-ep93xx/Makefile                      |   11 -
 arch/arm/mach-ep93xx/clock.c                       |  733 ----------
 arch/arm/mach-ep93xx/core.c                        | 1018 --------------
 arch/arm/mach-ep93xx/dma.c                         |  114 --
 arch/arm/mach-ep93xx/edb93xx.c                     |  368 -----
 arch/arm/mach-ep93xx/ep93xx-regs.h                 |   38 -
 arch/arm/mach-ep93xx/gpio-ep93xx.h                 |  111 --
 arch/arm/mach-ep93xx/hardware.h                    |   25 -
 arch/arm/mach-ep93xx/irqs.h                        |   76 --
 arch/arm/mach-ep93xx/platform.h                    |   42 -
 arch/arm/mach-ep93xx/soc.h                         |  212 ---
 arch/arm/mach-ep93xx/timer-ep93xx.c                |  143 --
 arch/arm/mach-ep93xx/ts72xx.c                      |  422 ------
 arch/arm/mach-ep93xx/ts72xx.h                      |   94 --
 arch/arm/mach-ep93xx/vision_ep9307.c               |  321 -----
 drivers/ata/pata_ep93xx.c                          |  107 +-
 drivers/clk/Kconfig                                |    8 +
 drivers/clk/Makefile                               |    1 +
 drivers/clk/clk-ep93xx.c                           |  846 ++++++++++++
 drivers/dma/ep93xx_dma.c                           |  287 +++-
 drivers/gpio/gpio-ep93xx.c                         |  345 ++---
 drivers/input/keyboard/ep93xx_keypad.c             |   74 +-
 drivers/mtd/nand/raw/Kconfig                       |    6 +
 drivers/mtd/nand/raw/Makefile                      |    1 +
 drivers/mtd/nand/raw/technologic-nand-controller.c |  222 +++
 drivers/net/ethernet/cirrus/ep93xx_eth.c           |   63 +-
 drivers/pinctrl/Kconfig                            |    7 +
 drivers/pinctrl/Makefile                           |    1 +
 drivers/pinctrl/pinctrl-ep93xx.c                   | 1434 ++++++++++++++++++++
 drivers/power/reset/Kconfig                        |   10 +
 drivers/power/reset/Makefile                       |    1 +
 drivers/power/reset/ep93xx-restart.c               |   84 ++
 drivers/pwm/pwm-ep93xx.c                           |   26 +-
 drivers/soc/Kconfig                                |    1 +
 drivers/soc/Makefile                               |    1 +
 drivers/soc/cirrus/Kconfig                         |   17 +
 drivers/soc/cirrus/Makefile                        |    2 +
 drivers/soc/cirrus/soc-ep93xx.c                    |  252 ++++
 drivers/spi/spi-ep93xx.c                           |   66 +-
 drivers/watchdog/ep93xx_wdt.c                      |    8 +
 drivers/watchdog/ts72xx_wdt.c                      |    8 +
 include/dt-bindings/clock/cirrus,ep9301-syscon.h   |   46 +
 include/linux/platform_data/dma-ep93xx.h           |   94 --
 include/linux/platform_data/eth-ep93xx.h           |   10 -
 include/linux/platform_data/keypad-ep93xx.h        |   32 -
 include/linux/platform_data/spi-ep93xx.h           |   15 -
 include/linux/soc/cirrus/ep93xx.h                  |   47 +-
 sound/soc/cirrus/Kconfig                           |    9 -
 sound/soc/cirrus/Makefile                          |    4 -
 sound/soc/cirrus/edb93xx.c                         |  116 --
 sound/soc/cirrus/ep93xx-i2s.c                      |   19 -
 sound/soc/cirrus/ep93xx-pcm.c                      |   19 +-
 71 files changed, 5161 insertions(+), 4550 deletions(-)
---
base-commit: 0c3836482481200ead7b416ca80c68a29cfdaabd
change-id: 20230605-ep93xx-01c76317e2d2

Best regards,