[PATCH v11 00/38] ep93xx device tree conversion

From: Nikita Shubin via B4 Relay
Date: Mon Jul 15 2024 - 04:40:51 EST

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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@xxxxxxxxxxx

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@xxxxxxxxxxx
- Link to v2 clk: https://lore.kernel.org/r/20240408-ep93xx-clk-v2-1-adcd68c13753@xxxxxxxxxxx

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@xxxxxxxxxxx/

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@xxxxxxxxxxx

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@xxxxxxxxxxx

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@xxxxxxxxxxx

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@xxxxxxxxxxx

---
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,
--
Nikita Shubin <nikita.shubin@xxxxxxxxxxx>

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