Re: [PATCH 2/2] gpio: loongson-64bit: Add more gpio chip support

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On Mon, Mar 3, 2025 at 8:46 AM Binbin Zhou <zhoubinbin@xxxxxxxxxxx> wrote:
>
> The Loongson-7A2000 and Loongson-3A6000 share the same gpio chip model.
> Just add them through driver_data.
>
> Signed-off-by: Binbin Zhou <zhoubinbin@xxxxxxxxxxx>
> ---
>  drivers/gpio/gpio-loongson-64bit.c | 51 ++++++++++++++++++++++++++++++
>  1 file changed, 51 insertions(+)
>
> diff --git a/drivers/gpio/gpio-loongson-64bit.c b/drivers/gpio/gpio-loongson-64bit.c
> index f000cc0356c7..a9a93036f08f 100644
> --- a/drivers/gpio/gpio-loongson-64bit.c
> +++ b/drivers/gpio/gpio-loongson-64bit.c
> @@ -254,6 +254,33 @@ static const struct loongson_gpio_chip_data loongson_gpio_ls7a_data = {
>         .out_offset = 0x900,
>  };
>
> +/* LS7A2000 chipset GPIO */
> +static const struct loongson_gpio_chip_data loongson_gpio_ls7a2000_data0 = {
> +       .label = "ls7a2000_gpio",
> +       .mode = BYTE_CTRL_MODE,
> +       .conf_offset = 0x800,
> +       .in_offset = 0xa00,
> +       .out_offset = 0x900,
> +};
> +
> +/* LS7A2000 ACPI GPIO */
> +static const struct loongson_gpio_chip_data loongson_gpio_ls7a2000_data1 = {
> +       .label = "ls7a2000_gpio",
> +       .mode = BYTE_CTRL_MODE,
> +       .conf_offset = 0x4,
> +       .in_offset = 0x8,
> +       .out_offset = 0x0,
> +};

The naming convention here is a bit confusing, can't we have the
naming of variables reflect the compatibles they refer to?

Bart

> +
> +/* Loongson-3A6000 node GPIO */
> +static const struct loongson_gpio_chip_data loongson_gpio_ls3a6000_data = {
> +       .label = "ls3a6000_gpio",
> +       .mode = BIT_CTRL_MODE,
> +       .conf_offset = 0x0,
> +       .in_offset = 0xc,
> +       .out_offset = 0x8,
> +};
> +
>  static const struct of_device_id loongson_gpio_of_match[] = {
>         {
>                 .compatible = "loongson,ls2k-gpio",
> @@ -287,6 +314,18 @@ static const struct of_device_id loongson_gpio_of_match[] = {
>                 .compatible = "loongson,ls7a-gpio",
>                 .data = &loongson_gpio_ls7a_data,
>         },
> +       {
> +               .compatible = "loongson,ls7a2000-gpio1",
> +               .data = &loongson_gpio_ls7a2000_data0,
> +       },
> +       {
> +               .compatible = "loongson,ls7a2000-gpio2",
> +               .data = &loongson_gpio_ls7a2000_data1,
> +       },
> +       {
> +               .compatible = "loongson,ls3a6000-gpio",
> +               .data = &loongson_gpio_ls3a6000_data,
> +       },
>         {}
>  };
>  MODULE_DEVICE_TABLE(of, loongson_gpio_of_match);
> @@ -312,6 +351,18 @@ static const struct acpi_device_id loongson_gpio_acpi_match[] = {
>                 .id = "LOON000C",
>                 .driver_data = (kernel_ulong_t)&loongson_gpio_ls2k2000_data2,
>         },
> +       {
> +               .id = "LOON000D",
> +               .driver_data = (kernel_ulong_t)&loongson_gpio_ls7a2000_data0,
> +       },
> +       {
> +               .id = "LOON000E",
> +               .driver_data = (kernel_ulong_t)&loongson_gpio_ls7a2000_data1,
> +       },
> +       {
> +               .id = "LOON000F",
> +               .driver_data = (kernel_ulong_t)&loongson_gpio_ls3a6000_data,
> +       },
>         {}
>  };
>  MODULE_DEVICE_TABLE(acpi, loongson_gpio_acpi_match);
> --
> 2.47.1
>





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