Re: [PATCH v4 3/6] pinctrl: sunxi: Add H3 PIO controller support

From: Jens Kuske
Date: Sun Nov 01 2015 - 08:41:47 EST

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On 30/10/15 09:08, Chen-Yu Tsai wrote:
> Hi,
>
> On Wed, Oct 28, 2015 at 12:50 AM, Jens Kuske <jenskuske@xxxxxxxxx> wrote:
>> The H3 uses the same pin controller as previous SoC's from Allwinner.
>> Add support for the pins controlled by the main PIO controller.
>>
>> Signed-off-by: Jens Kuske <jenskuske@xxxxxxxxx>
>> Acked-by: Maxime Ripard <maxime.ripard@xxxxxxxxxxxxxxxxxx>
>> ---
>> .../bindings/pinctrl/allwinner,sunxi-pinctrl.txt | 1 +
>> drivers/pinctrl/sunxi/Kconfig | 4 +
>> drivers/pinctrl/sunxi/Makefile | 1 +
>> drivers/pinctrl/sunxi/pinctrl-sun8i-h3.c | 516 +++++++++++++++++++++
>> 4 files changed, 522 insertions(+)
>> create mode 100644 drivers/pinctrl/sunxi/pinctrl-sun8i-h3.c
>>
>> diff --git a/Documentation/devicetree/bindings/pinctrl/allwinner,sunxi-pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/allwinner,sunxi-pinctrl.txt
>> index b321b26..e6ba602 100644
>> --- a/Documentation/devicetree/bindings/pinctrl/allwinner,sunxi-pinctrl.txt
>> +++ b/Documentation/devicetree/bindings/pinctrl/allwinner,sunxi-pinctrl.txt
>> @@ -18,6 +18,7 @@ Required properties:
>> "allwinner,sun8i-a23-r-pinctrl"
>> "allwinner,sun8i-a33-pinctrl"
>> "allwinner,sun8i-a83t-pinctrl"
>> + "allwinner,sun8i-h3-pinctrl"
>>
>> - reg: Should contain the register physical address and length for the
>> pin controller.
>> diff --git a/drivers/pinctrl/sunxi/Kconfig b/drivers/pinctrl/sunxi/Kconfig
>> index e68fd95..89ab7f5 100644
>> --- a/drivers/pinctrl/sunxi/Kconfig
>> +++ b/drivers/pinctrl/sunxi/Kconfig
>> @@ -51,6 +51,10 @@ config PINCTRL_SUN8I_A23_R
>> depends on RESET_CONTROLLER
>> select PINCTRL_SUNXI_COMMON
>>
>> +config PINCTRL_SUN8I_H3
>> + def_bool MACH_SUN8I
>> + select PINCTRL_SUNXI_COMMON
>> +
>> config PINCTRL_SUN9I_A80
>> def_bool MACH_SUN9I
>> select PINCTRL_SUNXI_COMMON
>> diff --git a/drivers/pinctrl/sunxi/Makefile b/drivers/pinctrl/sunxi/Makefile
>> index e080290..6bd818e 100644
>> --- a/drivers/pinctrl/sunxi/Makefile
>> +++ b/drivers/pinctrl/sunxi/Makefile
>> @@ -13,4 +13,5 @@ obj-$(CONFIG_PINCTRL_SUN8I_A23) += pinctrl-sun8i-a23.o
>> obj-$(CONFIG_PINCTRL_SUN8I_A23_R) += pinctrl-sun8i-a23-r.o
>> obj-$(CONFIG_PINCTRL_SUN8I_A33) += pinctrl-sun8i-a33.o
>> obj-$(CONFIG_PINCTRL_SUN8I_A83T) += pinctrl-sun8i-a83t.o
>> +obj-$(CONFIG_PINCTRL_SUN8I_H3) += pinctrl-sun8i-h3.o
>> obj-$(CONFIG_PINCTRL_SUN9I_A80) += pinctrl-sun9i-a80.o
>> diff --git a/drivers/pinctrl/sunxi/pinctrl-sun8i-h3.c b/drivers/pinctrl/sunxi/pinctrl-sun8i-h3.c
>> new file mode 100644
>> index 0000000..98d465d
>> --- /dev/null
>> +++ b/drivers/pinctrl/sunxi/pinctrl-sun8i-h3.c
>> @@ -0,0 +1,516 @@
>> +/*
>> + * Allwinner H3 SoCs pinctrl driver.
>> + *
>> + * Copyright (C) 2015 Jens Kuske <jenskuske@xxxxxxxxx>
>> + *
>> + * Based on pinctrl-sun8i-a23.c, which is:
>> + * Copyright (C) 2014 Chen-Yu Tsai <wens@xxxxxxxx>
>> + * Copyright (C) 2014 Maxime Ripard <maxime.ripard@xxxxxxxxxxxxxxxxxx>
>> + *
>> + * This file is licensed under the terms of the GNU General Public
>> + * License version 2. This program is licensed "as is" without any
>> + * warranty of any kind, whether express or implied.
>> + */
>> +
>> +#include <linux/module.h>
>> +#include <linux/platform_device.h>
>> +#include <linux/of.h>
>> +#include <linux/of_device.h>
>> +#include <linux/pinctrl/pinctrl.h>
>> +
>> +#include "pinctrl-sunxi.h"
>> +
>> +static const struct sunxi_desc_pin sun8i_h3_pins[] = {
>
> <snip>
>
>> + SUNXI_PIN(SUNXI_PINCTRL_PIN(D, 0),
>> + SUNXI_FUNCTION(0x0, "gpio_in"),
>> + SUNXI_FUNCTION(0x1, "gpio_out"),
>> + SUNXI_FUNCTION(0x2, "emac")), /* RXD3 */
>> + SUNXI_PIN(SUNXI_PINCTRL_PIN(D, 1),
>> + SUNXI_FUNCTION(0x0, "gpio_in"),
>> + SUNXI_FUNCTION(0x1, "gpio_out"),
>> + SUNXI_FUNCTION(0x2, "emac")), /* RXD2 */
>> + SUNXI_PIN(SUNXI_PINCTRL_PIN(D, 2),
>> + SUNXI_FUNCTION(0x0, "gpio_in"),
>> + SUNXI_FUNCTION(0x1, "gpio_out"),
>> + SUNXI_FUNCTION(0x2, "emac")), /* RXD1 */
>> + SUNXI_PIN(SUNXI_PINCTRL_PIN(D, 3),
>> + SUNXI_FUNCTION(0x0, "gpio_in"),
>> + SUNXI_FUNCTION(0x1, "gpio_out"),
>> + SUNXI_FUNCTION(0x2, "emac")), /* RXD0 */
>> + SUNXI_PIN(SUNXI_PINCTRL_PIN(D, 4),
>> + SUNXI_FUNCTION(0x0, "gpio_in"),
>> + SUNXI_FUNCTION(0x1, "gpio_out"),
>> + SUNXI_FUNCTION(0x2, "emac")), /* RXCK */
>> + SUNXI_PIN(SUNXI_PINCTRL_PIN(D, 5),
>> + SUNXI_FUNCTION(0x0, "gpio_in"),
>> + SUNXI_FUNCTION(0x1, "gpio_out"),
>> + SUNXI_FUNCTION(0x2, "emac")), /* RXCTL/RCDV */
>
> RXDV?
>
>> + SUNXI_PIN(SUNXI_PINCTRL_PIN(D, 6),
>> + SUNXI_FUNCTION(0x0, "gpio_in"),
>> + SUNXI_FUNCTION(0x1, "gpio_out"),
>> + SUNXI_FUNCTION(0x2, "emac")), /* RXERR */
>> + SUNXI_PIN(SUNXI_PINCTRL_PIN(D, 7),
>> + SUNXI_FUNCTION(0x0, "gpio_in"),
>> + SUNXI_FUNCTION(0x1, "gpio_out"),
>> + SUNXI_FUNCTION(0x2, "emac")), /* TXD3 */
>> + SUNXI_PIN(SUNXI_PINCTRL_PIN(D, 8),
>> + SUNXI_FUNCTION(0x0, "gpio_in"),
>> + SUNXI_FUNCTION(0x1, "gpio_out"),
>> + SUNXI_FUNCTION(0x2, "emac")), /* TXD2L */
>
> Trailing "L" there.
>
>> + SUNXI_PIN(SUNXI_PINCTRL_PIN(D, 9),
>> + SUNXI_FUNCTION(0x0, "gpio_in"),
>> + SUNXI_FUNCTION(0x1, "gpio_out"),
>> + SUNXI_FUNCTION(0x2, "emac")), /* TXD1 */
>
> <snip>
>
>> + SUNXI_PIN(SUNXI_PINCTRL_PIN(G, 0),
>> + SUNXI_FUNCTION(0x0, "gpio_in"),
>> + SUNXI_FUNCTION(0x1, "gpio_out"),
>> + SUNXI_FUNCTION(0x2, "mmc1"), /* CLK */
>> + SUNXI_FUNCTION_IRQ_BANK(0x4, 1, 0)), /* PG_EINT0 */
>
> Datasheet say EINT is function 0x6. Same for all the other pins in group G.

Thanks. I had checked the whole list at least three times, but one
always overlooks something it seems.

>
>> + SUNXI_PIN(SUNXI_PINCTRL_PIN(G, 1),
>> + SUNXI_FUNCTION(0x0, "gpio_in"),
>> + SUNXI_FUNCTION(0x1, "gpio_out"),
>> + SUNXI_FUNCTION(0x2, "mmc1"), /* CMD */
>> + SUNXI_FUNCTION_IRQ_BANK(0x4, 1, 1)), /* PG_EINT1 */
>> + SUNXI_PIN(SUNXI_PINCTRL_PIN(G, 2),
>> + SUNXI_FUNCTION(0x0, "gpio_in"),
>> + SUNXI_FUNCTION(0x1, "gpio_out"),
>> + SUNXI_FUNCTION(0x2, "mmc1"), /* D0 */
>> + SUNXI_FUNCTION_IRQ_BANK(0x4, 1, 2)), /* PG_EINT2 */
>> + SUNXI_PIN(SUNXI_PINCTRL_PIN(G, 3),
>> + SUNXI_FUNCTION(0x0, "gpio_in"),
>> + SUNXI_FUNCTION(0x1, "gpio_out"),
>> + SUNXI_FUNCTION(0x2, "mmc1"), /* D1 */
>> + SUNXI_FUNCTION_IRQ_BANK(0x4, 1, 3)), /* PG_EINT3 */
>> + SUNXI_PIN(SUNXI_PINCTRL_PIN(G, 4),
>> + SUNXI_FUNCTION(0x0, "gpio_in"),
>> + SUNXI_FUNCTION(0x1, "gpio_out"),
>> + SUNXI_FUNCTION(0x2, "mmc1"), /* D2 */
>> + SUNXI_FUNCTION_IRQ_BANK(0x4, 1, 4)), /* PG_EINT4 */
>> + SUNXI_PIN(SUNXI_PINCTRL_PIN(G, 5),
>> + SUNXI_FUNCTION(0x0, "gpio_in"),
>> + SUNXI_FUNCTION(0x1, "gpio_out"),
>> + SUNXI_FUNCTION(0x2, "mmc1"), /* D3 */
>> + SUNXI_FUNCTION_IRQ_BANK(0x4, 1, 5)), /* PG_EINT5 */
>> + SUNXI_PIN(SUNXI_PINCTRL_PIN(G, 6),
>> + SUNXI_FUNCTION(0x0, "gpio_in"),
>> + SUNXI_FUNCTION(0x1, "gpio_out"),
>> + SUNXI_FUNCTION(0x2, "uart1"), /* TX */
>> + SUNXI_FUNCTION_IRQ_BANK(0x4, 1, 6)), /* PG_EINT6 */
>> + SUNXI_PIN(SUNXI_PINCTRL_PIN(G, 7),
>> + SUNXI_FUNCTION(0x0, "gpio_in"),
>> + SUNXI_FUNCTION(0x1, "gpio_out"),
>> + SUNXI_FUNCTION(0x2, "uart1"), /* RX */
>> + SUNXI_FUNCTION_IRQ_BANK(0x4, 1, 7)), /* PG_EINT7 */
>> + SUNXI_PIN(SUNXI_PINCTRL_PIN(G, 8),
>> + SUNXI_FUNCTION(0x0, "gpio_in"),
>> + SUNXI_FUNCTION(0x1, "gpio_out"),
>> + SUNXI_FUNCTION(0x2, "uart1"), /* RTS */
>> + SUNXI_FUNCTION_IRQ_BANK(0x4, 1, 8)), /* PG_EINT8 */
>> + SUNXI_PIN(SUNXI_PINCTRL_PIN(G, 9),
>> + SUNXI_FUNCTION(0x0, "gpio_in"),
>> + SUNXI_FUNCTION(0x1, "gpio_out"),
>> + SUNXI_FUNCTION(0x2, "uart1"), /* CTS */
>> + SUNXI_FUNCTION_IRQ_BANK(0x4, 1, 9)), /* PG_EINT9 */
>> + SUNXI_PIN(SUNXI_PINCTRL_PIN(G, 10),
>> + SUNXI_FUNCTION(0x0, "gpio_in"),
>> + SUNXI_FUNCTION(0x1, "gpio_out"),
>> + SUNXI_FUNCTION(0x2, "i2s1"), /* SYNC */
>> + SUNXI_FUNCTION_IRQ_BANK(0x4, 1, 10)), /* PG_EINT10 */
>> + SUNXI_PIN(SUNXI_PINCTRL_PIN(G, 11),
>> + SUNXI_FUNCTION(0x0, "gpio_in"),
>> + SUNXI_FUNCTION(0x1, "gpio_out"),
>> + SUNXI_FUNCTION(0x2, "i2s1"), /* CLK */
>> + SUNXI_FUNCTION_IRQ_BANK(0x4, 1, 11)), /* PG_EINT11 */
>> + SUNXI_PIN(SUNXI_PINCTRL_PIN(G, 12),
>> + SUNXI_FUNCTION(0x0, "gpio_in"),
>> + SUNXI_FUNCTION(0x1, "gpio_out"),
>> + SUNXI_FUNCTION(0x2, "i2s1"), /* DOUT */
>> + SUNXI_FUNCTION_IRQ_BANK(0x4, 1, 12)), /* PG_EINT12 */
>> + SUNXI_PIN(SUNXI_PINCTRL_PIN(G, 13),
>> + SUNXI_FUNCTION(0x0, "gpio_in"),
>> + SUNXI_FUNCTION(0x1, "gpio_out"),
>> + SUNXI_FUNCTION(0x2, "i2s1"), /* DIN */
>> + SUNXI_FUNCTION_IRQ_BANK(0x4, 1, 13)), /* PG_EINT13 */
>> +};
>> +
>> +static const struct sunxi_pinctrl_desc sun8i_h3_pinctrl_data = {
>> + .pins = sun8i_h3_pins,
>> + .npins = ARRAY_SIZE(sun8i_h3_pins),
>> + .irq_banks = 2,
>> +};
>> +
>> +static int sun8i_h3_pinctrl_probe(struct platform_device *pdev)
>> +{
>> + return sunxi_pinctrl_init(pdev,
>> + &sun8i_h3_pinctrl_data);
>> +}
>> +
>> +static const struct of_device_id sun8i_h3_pinctrl_match[] = {
>> + { .compatible = "allwinner,sun8i-h3-pinctrl", },
>> + {}
>> +};
>> +
>> +static struct platform_driver sun8i_h3_pinctrl_driver = {
>> + .probe = sun8i_h3_pinctrl_probe,
>> + .driver = {
>> + .name = "sun8i-h3-pinctrl",
>> + .of_match_table = sun8i_h3_pinctrl_match,
>> + },
>> +};
>> +builtin_platform_driver(sun8i_h3_pinctrl_driver);
>> --
>> 2.6.2
>>
>
> The rest looks good. Thanks!
>
>
> Regards
> ChenYu
>
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Next message: Stephen Rothwell: "linux-next: manual merge of the staging tree with the spi tree"
Previous message: Jens Kuske: "Re: [PATCH v4 4/6] reset: sunxi: Add Allwinner H3 bus resets"
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