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SubjectRe: [PATCH next v5 1/2] i2c: hisi: Add initial device tree support
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On 2022/9/20 15:22, Weilong Chen wrote:
> The HiSilicon I2C controller can be used on embedded platform, which
> boot from devicetree.
>
> Signed-off-by: Weilong Chen <chenweilong@huawei.com>
> ---
> Change since v4:
> - Remove the protection for the headers for ACPI/OF
> Link: https://lore.kernel.org/lkml/20220909074842.281232-1-chenweilong@huawei.com/T/
>
> drivers/i2c/busses/Kconfig | 2 +-
> drivers/i2c/busses/i2c-hisi.c | 15 ++++++++++++++-
> 2 files changed, 15 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
> index 0c48d8a9f44a..81f6936c312f 100644
> --- a/drivers/i2c/busses/Kconfig
> +++ b/drivers/i2c/busses/Kconfig
> @@ -673,7 +673,7 @@ config I2C_HIGHLANDER
>
> config I2C_HISI
> tristate "HiSilicon I2C controller"
> - depends on (ARM64 && ACPI) || COMPILE_TEST
> + depends on ARM64 || COMPILE_TEST
> help
> Say Y here if you want to have Hisilicon I2C controller support
> available on the Kunpeng Server.
> diff --git a/drivers/i2c/busses/i2c-hisi.c b/drivers/i2c/busses/i2c-hisi.c
> index 76c3d8f6fc3c..67031024217c 100644
> --- a/drivers/i2c/busses/i2c-hisi.c
> +++ b/drivers/i2c/busses/i2c-hisi.c
> @@ -5,6 +5,7 @@
> * Copyright (c) 2021 HiSilicon Technologies Co., Ltd.
> */
>
> +#include <linux/acpi.h>
> #include <linux/bits.h>
> #include <linux/bitfield.h>
> #include <linux/completion.h>
> @@ -13,6 +14,7 @@
> #include <linux/io.h>
> #include <linux/module.h>
> #include <linux/mod_devicetable.h>
> +#include <linux/of.h>
> #include <linux/platform_device.h>
> #include <linux/property.h>
> #include <linux/units.h>
> @@ -483,17 +485,28 @@ static int hisi_i2c_probe(struct platform_device *pdev)
> return 0;
> }
>
> +#ifdef CONFIG_ACPI
> static const struct acpi_device_id hisi_i2c_acpi_ids[] = {
> { "HISI03D1", 0 },
> { }
> };
> MODULE_DEVICE_TABLE(acpi, hisi_i2c_acpi_ids);
> +#endif
> +
> +#ifdef CONFIG_OF
> +static const struct of_device_id hisi_i2c_dts_ids[] = {
> + { .compatible = "hisilicon,hisi-i2c", },

The patch itself looks good to me:

Acked-by: Yicong Yang <yangyicong@hisilicon.com>

It's better to have a tag from xuwei for HiSilicon's DTS stuff.

Thanks.

> + { }
> +};
> +MODULE_DEVICE_TABLE(of, hisi_i2c_dts_ids);
> +#endif
>
> static struct platform_driver hisi_i2c_driver = {
> .probe = hisi_i2c_probe,
> .driver = {
> .name = "hisi-i2c",
> - .acpi_match_table = hisi_i2c_acpi_ids,
> + .acpi_match_table = ACPI_PTR(hisi_i2c_acpi_ids),
> + .of_match_table = of_match_ptr(hisi_i2c_dts_ids),
> },
> };
> module_platform_driver(hisi_i2c_driver);
>

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