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* [PATCH V3 0/5] i2c: ls2x: Add support for the Loongson-2K/LS7A I2C controller
@ 2022-11-25  8:54 Binbin Zhou
  2022-11-25  8:54 ` [PATCH V3 1/5] i2c: gpio: Fix potential unused warning for 'i2c_gpio_dt_ids' Binbin Zhou
                   ` (5 more replies)
  0 siblings, 6 replies; 24+ messages in thread
From: Binbin Zhou @ 2022-11-25  8:54 UTC (permalink / raw)
  To: Wolfram Sang, Wolfram Sang, Mika Westerberg, linux-i2c
  Cc: loongarch, devicetree, Huacai Chen, WANG Xuerui, Andy Shevchenko,
	Arnd Bergmann, Rob Herring, Krzysztof Kozlowski, Jianmin Lv,
	Binbin Zhou

Hi all:

Sorry, it may have been a while since the V2 patchset.

This patch series adds support for the I2C module found on various
Loongson systems with the Loongson-2K SoC or the Loongson LS7A bridge chip.

For now, the I2C driver is suitable for DT-based or ACPI-based systems.

I have tested on Loongson-3A5000LA+LS7A1000/LS7A2000, Loongson-2K1000LA
and Loongson-2K0500.

Thanks.

Changes since V2:
- Addressed all review comments from v2
  - Drop of_match_ptr() in i2c-gpio to avoid potential unused warnings
    (1/5);
  - Introduce i2c_gpio_get_props() function as the generic interface
    to get i2c-gpio props from DT or ACPI table (2/5);
  - Refact ls2x i2c code, similar to removing excessive goto tags (4/5).

Thanks to Andy and Mika for their suggestions.

Changes since V1:
- Remove the function of getting the static i2c bus number from ACPI "_UID";
- Fix build warning from kernel test robot.

Binbin Zhou (5):
  i2c: gpio: Fix potential unused warning for 'i2c_gpio_dt_ids'
  i2c: gpio: Add support on ACPI-based system
  dt-bindings: i2c: add bindings for Loongson LS2X I2C
  i2c: ls2x: Add driver for Loongson-2K/LS7A I2C controller
  LoongArch: Enable LS2X I2C in loongson3_defconfig

 .../bindings/i2c/loongson,ls2x-i2c.yaml       |  48 ++
 arch/loongarch/configs/loongson3_defconfig    |   1 +
 drivers/i2c/busses/Kconfig                    |  11 +
 drivers/i2c/busses/Makefile                   |   1 +
 drivers/i2c/busses/i2c-gpio.c                 |  30 +-
 drivers/i2c/busses/i2c-ls2x.c                 | 415 ++++++++++++++++++
 6 files changed, 494 insertions(+), 12 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/i2c/loongson,ls2x-i2c.yaml
 create mode 100644 drivers/i2c/busses/i2c-ls2x.c

-- 
2.31.1


^ permalink raw reply	[flat|nested] 24+ messages in thread

end of thread, other threads:[~2022-11-29 13:24 UTC | newest]

Thread overview: 24+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2022-11-25  8:54 [PATCH V3 0/5] i2c: ls2x: Add support for the Loongson-2K/LS7A I2C controller Binbin Zhou
2022-11-25  8:54 ` [PATCH V3 1/5] i2c: gpio: Fix potential unused warning for 'i2c_gpio_dt_ids' Binbin Zhou
2022-11-25 10:21   ` Andy Shevchenko
2022-11-25 10:35   ` Arnd Bergmann
2022-11-25  8:54 ` [PATCH V3 2/5] i2c: gpio: Add support on ACPI-based system Binbin Zhou
2022-11-25 10:23   ` Andy Shevchenko
2022-11-28  1:28     ` Binbin Zhou
2022-11-25  8:54 ` [PATCH V3 3/5] dt-bindings: i2c: add bindings for Loongson LS2X I2C Binbin Zhou
2022-11-27 20:49   ` Krzysztof Kozlowski
2022-11-28 12:24     ` Binbin Zhou
2022-11-28 12:37       ` Krzysztof Kozlowski
2022-11-28 14:15       ` Krzysztof Kozlowski
2022-11-29 13:24         ` Binbin Zhou
2022-11-27 20:50   ` Krzysztof Kozlowski
2022-11-25  8:55 ` [PATCH V3 4/5] i2c: ls2x: Add driver for Loongson-2K/LS7A I2C controller Binbin Zhou
2022-11-25 10:41   ` Andy Shevchenko
2022-11-28 12:03     ` Binbin Zhou
2022-11-28 13:24       ` Andy Shevchenko
2022-11-29 11:34         ` Binbin Zhou
2022-11-29 12:53           ` Andy Shevchenko
2022-11-29 13:19             ` Binbin Zhou
2022-11-25 11:02   ` kernel test robot
2022-11-25  8:55 ` [PATCH V3 5/5] LoongArch: Enable LS2X I2C in loongson3_defconfig Binbin Zhou
2022-11-26 22:25 ` [PATCH V3 3/5] dt-bindings: i2c: add bindings for Loongson LS2X I2C Rob Herring

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