Re: [PATCH v3 2/3] pinctrl: meson: Add driver support for Amlogic A4 SoCs

[Christophe JAILLET <christophe.jaillet@wanadoo.fr>]

Le 18/10/2024 à 10:10, Xianwei Zhao via B4 Relay a écrit :
> From: Xianwei Zhao <xianwei.zhao@amlogic.com>
> 
> Add a new pinctrl driver for Amlogic A4 SoCs which share
> the same register layout as the previous Amlogic S4.
> 
> Signed-off-by: Xianwei Zhao <xianwei.zhao@amlogic.com>
> ---
>   drivers/pinctrl/meson/Kconfig              |    6 +
>   drivers/pinctrl/meson/Makefile             |    1 +
>   drivers/pinctrl/meson/pinctrl-amlogic-a4.c | 1253 ++++++++++++++++++++++++++++
>   3 files changed, 1260 insertions(+)

Hi,

a few nitpicks below.

...

> +
> +static struct meson_pmx_group a4_periphs_groups[] = {

I think that struct meson_pmx_group could be const.
(same for a4_aobus_groups above)

> +	/* func0 as GPIO */
> +	GPIO_GROUP(GPIOE_0),
> +	GPIO_GROUP(GPIOE_1),
> +

...

> +static struct meson_pmx_func a4_periphs_functions[] = {

I think that struct meson_pmx_func could be const.
(a4_aobus_functions above as well)

> +	FUNCTION(gpio_periphs),
> +	FUNCTION(uart_a),
> +	FUNCTION(uart_b),
> +	FUNCTION(uart_d),
> +	FUNCTION(uart_e),
> +	FUNCTION(i2c0),
> +	FUNCTION(i2c1),
> +	FUNCTION(i2c2),
> +	FUNCTION(i2c3),
> +	FUNCTION(pwm_a),
> +	FUNCTION(pwm_b),
> +	FUNCTION(pwm_c),
> +	FUNCTION(pwm_d),
> +	FUNCTION(pwm_e),
> +	FUNCTION(pwm_f),
> +	FUNCTION(pwm_g),
> +	FUNCTION(pwm_h),
> +	FUNCTION(remote_out),
> +	FUNCTION(remote_in),
> +	FUNCTION(dcon_led),
> +	FUNCTION(spinf),
> +	FUNCTION(lcd),
> +	FUNCTION(jtag_1),
> +	FUNCTION(gen_clk),
> +	FUNCTION(clk12_24),
> +	FUNCTION(emmc),
> +	FUNCTION(nand),
> +	FUNCTION(spi_a),
> +	FUNCTION(spi_b),
> +	FUNCTION(pdm),
> +	FUNCTION(sdio),
> +	FUNCTION(eth),
> +	FUNCTION(mic_mute),
> +	FUNCTION(mclk),
> +	FUNCTION(tdm),
> +	FUNCTION(spdif_in),
> +	FUNCTION(spdif_out)
> +};
> +
> +static struct meson_bank a4_periphs_banks[] = {

I think that both struct meson_bank could be const.

> +	/* name  first  last  irq  pullen  pull  dir  out  in */
> +	BANK_DS("E",  GPIOE_0,  GPIOE_1,  14,  15,
> +		0x43,  0, 0x44,  0, 0x42,  0, 0x41,  0, 0x40,  0, 0x47,  0),
> +	BANK_DS("D",  GPIOD_0, GPIOD_15,  16, 31,
> +		0x33,  0, 0x34,  0, 0x32,  0, 0x31,  0, 0x30,  0, 0x37,  0),
> +	BANK_DS("B",  GPIOB_0, GPIOB_13, 0, 13,
> +		0x63,  0, 0x64,  0, 0x62,  0, 0x61,  0, 0x60,  0, 0x67,  0),
> +	BANK_DS("X",  GPIOX_0, GPIOX_17, 55, 72,
> +		0x13,  0, 0x14,  0, 0x12,  0, 0x11,  0, 0x10,  0, 0x17,  0),
> +	BANK_DS("T",  GPIOT_0, GPIOT_22, 32, 54,
> +		0x23,  0, 0x24,  0, 0x22,  0, 0x21,  0, 0x20,  0, 0x27,  0),
> +};
> +
> +static struct meson_bank a4_aobus_banks[] = {
> +	BANK_DS("AO", GPIOAO_0, GPIOAO_6,  0,  6,
> +		0x3,   0,  0x4,  0,   0x2,  0,  0x1,  0,  0x0,  0,  0x7, 0),
> +	BANK_DS("TEST_N", GPIO_TEST_N,    GPIO_TEST_N,   7, 7,
> +		0x13,  0,  0x14,  0,  0x12, 0,  0x11,  0, 0x10, 0, 0x17, 0),
> +};
> +
> +static struct meson_pmx_bank a4_periphs_pmx_banks[] = {

I think that both struct meson_pmx_bank could be const.

> +	/* name  first  lask  reg  offset */
> +	BANK_PMX("E",  GPIOE_0,  GPIOE_1, 0x12,  0),
> +	BANK_PMX("D",  GPIOD_0, GPIOD_15, 0x10,  0),
> +	BANK_PMX("B",  GPIOB_0, GPIOB_13, 0x00,  0),
> +	BANK_PMX("X",  GPIOX_0, GPIOX_17, 0x03,  0),
> +	BANK_PMX("T",  GPIOT_0, GPIOT_22, 0x0b,  0),
> +};
> +
> +static struct meson_pmx_bank a4_aobus_pmx_banks[] = {
> +	BANK_PMX("AO", GPIOAO_0, GPIOAO_6, 0x00,  0),
> +	BANK_PMX("TEST_N", GPIO_TEST_N, GPIO_TEST_N, 0x0,  28),
> +};
> +
> +static struct meson_axg_pmx_data a4_periphs_pmx_banks_data = {

I think that both struct meson_axg_pmx_data could be const.

> +	.pmx_banks	= a4_periphs_pmx_banks,
> +	.num_pmx_banks	= ARRAY_SIZE(a4_periphs_pmx_banks),
> +};
> +
> +static struct meson_axg_pmx_data a4_aobus_pmx_banks_data = {
> +	.pmx_banks	= a4_aobus_pmx_banks,
> +	.num_pmx_banks	= ARRAY_SIZE(a4_aobus_pmx_banks),
> +};
> +
> +static struct meson_pinctrl_data a4_periphs_pinctrl_data = {

I think that both struct meson_pinctrl_data could be const.

> +	.name		= "periphs-banks",
> +	.pins		= a4_periphs_pins,
> +	.groups		= a4_periphs_groups,
> +	.funcs		= a4_periphs_functions,
> +	.banks		= a4_periphs_banks,
> +	.num_pins	= ARRAY_SIZE(a4_periphs_pins),
> +	.num_groups	= ARRAY_SIZE(a4_periphs_groups),
> +	.num_funcs	= ARRAY_SIZE(a4_periphs_functions),
> +	.num_banks	= ARRAY_SIZE(a4_periphs_banks),
> +	.pmx_ops	= &meson_axg_pmx_ops,
> +	.pmx_data	= &a4_periphs_pmx_banks_data,
> +	.parse_dt	= &meson_a1_parse_dt_extra,
> +};
> +
> +static struct meson_pinctrl_data a4_aobus_pinctrl_data = {
> +	.name		= "aobus-banks",
> +	.pins		= a4_aobus_pins,
> +	.groups		= a4_aobus_groups,
> +	.funcs		= a4_aobus_functions,
> +	.banks		= a4_aobus_banks,
> +	.num_pins	= ARRAY_SIZE(a4_aobus_pins),
> +	.num_groups	= ARRAY_SIZE(a4_aobus_groups),
> +	.num_funcs	= ARRAY_SIZE(a4_aobus_functions),
> +	.num_banks	= ARRAY_SIZE(a4_aobus_banks),
> +	.pmx_ops	= &meson_axg_pmx_ops,
> +	.pmx_data	= &a4_aobus_pmx_banks_data,
> +	.parse_dt	= &meson_a1_parse_dt_extra,
> +};
> +
> +static const struct of_device_id a4_pinctrl_dt_match[] = {
> +	{
> +		.compatible = "amlogic,a4-periphs-pinctrl",
> +		.data = &a4_periphs_pinctrl_data,
> +	},
> +	{
> +		.compatible = "amlogic,a4-aobus-pinctrl",
> +		.data = &a4_aobus_pinctrl_data,
> +	},
> +	{ },

Usually, there is no extra "," after a terinator item.

> +};
> +MODULE_DEVICE_TABLE(of, a4_pinctrl_dt_match);
> +
> +static struct platform_driver a4_pinctrl_driver = {
> +	.probe  = meson_pinctrl_probe,
> +	.driver = {
> +		.name	= "amlogic-a4-pinctrl",
> +		.of_match_table = a4_pinctrl_dt_match,
> +	},
> +};

...

CJ