diff mbox series

[7/7] gpiolib: of: add quirk for phy reset polarity for Freescale Ethernet

Message ID 20221011-gpiolib-quirks-v1-7-e01d9d3e7b29@gmail.com
State Superseded
Headers show
Series gpiolib: more quirks to handle legacy names | expand

Commit Message

Dmitry Torokhov Oct. 11, 2022, 10:19 p.m. UTC
Bindings for Freescale Fast Ethernet Controller use a separate
property "phy-reset-active-high" to specify polarity of its phy
gpio line. To allow converting the driver to gpiod API we need
to add this quirk to gpiolib.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/gpio/gpiolib-of.c | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

Comments

Alexander Stein Oct. 12, 2022, 6:14 a.m. UTC | #1
Am Mittwoch, 12. Oktober 2022, 00:19:35 CEST schrieb Dmitry Torokhov:
> Bindings for Freescale Fast Ethernet Controller use a separate
> property "phy-reset-active-high" to specify polarity of its phy
> gpio line. To allow converting the driver to gpiod API we need
> to add this quirk to gpiolib.
> 
> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
> ---
>  drivers/gpio/gpiolib-of.c | 27 +++++++++++++++++++++++++++
>  1 file changed, 27 insertions(+)
> 
> diff --git a/drivers/gpio/gpiolib-of.c b/drivers/gpio/gpiolib-of.c
> index 3200d705fbe3..c3d3fe4d927c 100644
> --- a/drivers/gpio/gpiolib-of.c
> +++ b/drivers/gpio/gpiolib-of.c
> @@ -231,6 +231,33 @@ static void of_gpio_flags_quirks(const struct
> device_node *np, !strcmp(propname, "snps,reset-gpio") &&
>  	    of_property_read_bool(np, "snps,reset-active-low"))
>  		*flags |= OF_GPIO_ACTIVE_LOW;
> +
> +	/*
> +	 * Freescale Fast Ethernet Controller uses a separate property to
> +	 * describe polarity of the phy reset line.
> +	 */
> +	if (IS_ENABLED(CONFIG_FEC)) {
> +		static const char * const fec_devices[] = {
> +			"fsl,imx25-fec",
> +			"fsl,imx27-fec",
> +			"fsl,imx28-fec",
> +			"fsl,imx6q-fec",
> +			"fsl,mvf600-fec",
> +			"fsl,imx6sx-fec",
> +			"fsl,imx6ul-fec",

> +			"fsl,imx6mq-fec",
> +			"fsl,imx6qm-fec",

These two should be 'fsl,imx8mq-fec' & 'fsl,imx8qm-fec' (imx8 instead of 
imx6).

Best regards,
Alexander

> +			"fsl,s32v234-fec",
> +			NULL
> +		};
> +
> +		if (!strcmp(propname, "phy-reset-gpios") &&
> +		    of_device_compatible_match(np, fec_devices)) {
> +			bool active_high = of_property_read_bool(np,
> +						"phy-reset-
active-high");
> +			of_gpio_quirk_polarity(np, active_high, 
flags);
> +		}
> +	}
>  }
> 
>  /**
Dmitry Torokhov Oct. 12, 2022, 3:25 p.m. UTC | #2
On October 11, 2022 11:14:46 PM PDT, Alexander Stein <alexander.stein@ew.tq-group.com> wrote:
>Am Mittwoch, 12. Oktober 2022, 00:19:35 CEST schrieb Dmitry Torokhov:
>> Bindings for Freescale Fast Ethernet Controller use a separate
>> property "phy-reset-active-high" to specify polarity of its phy
>> gpio line. To allow converting the driver to gpiod API we need
>> to add this quirk to gpiolib.
>> 
>> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
>> ---
>>  drivers/gpio/gpiolib-of.c | 27 +++++++++++++++++++++++++++
>>  1 file changed, 27 insertions(+)
>> 
>> diff --git a/drivers/gpio/gpiolib-of.c b/drivers/gpio/gpiolib-of.c
>> index 3200d705fbe3..c3d3fe4d927c 100644
>> --- a/drivers/gpio/gpiolib-of.c
>> +++ b/drivers/gpio/gpiolib-of.c
>> @@ -231,6 +231,33 @@ static void of_gpio_flags_quirks(const struct
>> device_node *np, !strcmp(propname, "snps,reset-gpio") &&
>>  	    of_property_read_bool(np, "snps,reset-active-low"))
>>  		*flags |= OF_GPIO_ACTIVE_LOW;
>> +
>> +	/*
>> +	 * Freescale Fast Ethernet Controller uses a separate property to
>> +	 * describe polarity of the phy reset line.
>> +	 */
>> +	if (IS_ENABLED(CONFIG_FEC)) {
>> +		static const char * const fec_devices[] = {
>> +			"fsl,imx25-fec",
>> +			"fsl,imx27-fec",
>> +			"fsl,imx28-fec",
>> +			"fsl,imx6q-fec",
>> +			"fsl,mvf600-fec",
>> +			"fsl,imx6sx-fec",
>> +			"fsl,imx6ul-fec",
>
>> +			"fsl,imx6mq-fec",
>> +			"fsl,imx6qm-fec",
>
>These two should be 'fsl,imx8mq-fec' & 'fsl,imx8qm-fec' (imx8 instead of 
>imx6).

Thank you for noticing this. I'll fix it up in the next version.

Thanks.
diff mbox series

Patch

diff --git a/drivers/gpio/gpiolib-of.c b/drivers/gpio/gpiolib-of.c
index 3200d705fbe3..c3d3fe4d927c 100644
--- a/drivers/gpio/gpiolib-of.c
+++ b/drivers/gpio/gpiolib-of.c
@@ -231,6 +231,33 @@  static void of_gpio_flags_quirks(const struct device_node *np,
 	    !strcmp(propname, "snps,reset-gpio") &&
 	    of_property_read_bool(np, "snps,reset-active-low"))
 		*flags |= OF_GPIO_ACTIVE_LOW;
+
+	/*
+	 * Freescale Fast Ethernet Controller uses a separate property to
+	 * describe polarity of the phy reset line.
+	 */
+	if (IS_ENABLED(CONFIG_FEC)) {
+		static const char * const fec_devices[] = {
+			"fsl,imx25-fec",
+			"fsl,imx27-fec",
+			"fsl,imx28-fec",
+			"fsl,imx6q-fec",
+			"fsl,mvf600-fec",
+			"fsl,imx6sx-fec",
+			"fsl,imx6ul-fec",
+			"fsl,imx6mq-fec",
+			"fsl,imx6qm-fec",
+			"fsl,s32v234-fec",
+			NULL
+		};
+
+		if (!strcmp(propname, "phy-reset-gpios") &&
+		    of_device_compatible_match(np, fec_devices)) {
+			bool active_high = of_property_read_bool(np,
+						"phy-reset-active-high");
+			of_gpio_quirk_polarity(np, active_high, flags);
+		}
+	}
 }
 
 /**