diff mbox

[v2,1/4] power: axp20x_usb: Add support for usb power-supply on axp22x pmics

Message ID 1464887936-17020-1-git-send-email-hdegoede@redhat.com
State Not Applicable, archived
Headers show

Commit Message

Hans de Goede June 2, 2016, 5:18 p.m. UTC
The usb power-supply on the axp22x pmics is mostly identical to the
one on the axp20x pmics. One significant difference is that it cannot
measure / monitor the usb voltage / current.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
---
Changes in v2:
-Use compatible instead of axp20x->variant to detect pmic type
---
 .../bindings/power_supply/axp20x_usb_power.txt     |  3 +-
 drivers/power/axp20x_usb_power.c                   | 92 ++++++++++++++++------
 2 files changed, 71 insertions(+), 24 deletions(-)

Comments

Chen-Yu Tsai June 3, 2016, 1:20 a.m. UTC | #1
On Fri, Jun 3, 2016 at 1:18 AM, Hans de Goede <hdegoede@redhat.com> wrote:
> Add axp20x-usb-power-supply for axp22x pmics.
>
> Signed-off-by: Hans de Goede <hdegoede@redhat.com>

Acked-by: Chen-Yu Tsai <wens@csie.org>
--
To unsubscribe from this list: send the line "unsubscribe devicetree" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Chen-Yu Tsai June 3, 2016, 1:39 a.m. UTC | #2
On Fri, Jun 3, 2016 at 1:18 AM, Hans de Goede <hdegoede@redhat.com> wrote:
> The usb power-supply on the axp22x pmics is mostly identical to the
> one on the axp20x pmics. One significant difference is that it cannot
> measure / monitor the usb voltage / current.
>
> Signed-off-by: Hans de Goede <hdegoede@redhat.com>

Acked-by: Chen-Yu Tsai <wens@csie.org>
--
To unsubscribe from this list: send the line "unsubscribe devicetree" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Sebastian Reichel June 4, 2016, 2:01 p.m. UTC | #3
Hi,

On Thu, Jun 02, 2016 at 07:18:53PM +0200, Hans de Goede wrote:
> The usb power-supply on the axp22x pmics is mostly identical to the
> one on the axp20x pmics. One significant difference is that it cannot
> measure / monitor the usb voltage / current.

Acked-By: Sebastian Reichel <sre@kernel.org>

What's the merge strategy for this patchset?

-- Sebastian
Hans de Goede June 4, 2016, 2:09 p.m. UTC | #4
Hi,

On 04-06-16 16:01, Sebastian Reichel wrote:
> Hi,
>
> On Thu, Jun 02, 2016 at 07:18:53PM +0200, Hans de Goede wrote:
>> The usb power-supply on the axp22x pmics is mostly identical to the
>> one on the axp20x pmics. One significant difference is that it cannot
>> measure / monitor the usb voltage / current.
>
> Acked-By: Sebastian Reichel <sre@kernel.org>
>
> What's the merge strategy for this patchset?

All of the separate bits can be merged separately without
problems, so Lee can take the 2 mfd patches, you can take
the power-supply patch and Mark Brown can take the regulator
patch.

I believe that that is the best merge strategy.

Regards,

Hans
--
To unsubscribe from this list: send the line "unsubscribe devicetree" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Rob Herring (Arm) June 6, 2016, 1:26 p.m. UTC | #5
On Thu, Jun 02, 2016 at 07:18:53PM +0200, Hans de Goede wrote:
> The usb power-supply on the axp22x pmics is mostly identical to the
> one on the axp20x pmics. One significant difference is that it cannot
> measure / monitor the usb voltage / current.
> 
> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
> ---
> Changes in v2:
> -Use compatible instead of axp20x->variant to detect pmic type
> ---
>  .../bindings/power_supply/axp20x_usb_power.txt     |  3 +-

Acked-by: Rob Herring <robh@kernel.org>

>  drivers/power/axp20x_usb_power.c                   | 92 ++++++++++++++++------
>  2 files changed, 71 insertions(+), 24 deletions(-)
--
To unsubscribe from this list: send the line "unsubscribe devicetree" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Sebastian Reichel June 10, 2016, 1:37 a.m. UTC | #6
Hi,

On Sat, Jun 04, 2016 at 04:09:53PM +0200, Hans de Goede wrote:
> On 04-06-16 16:01, Sebastian Reichel wrote:
> > On Thu, Jun 02, 2016 at 07:18:53PM +0200, Hans de Goede wrote:
> > > The usb power-supply on the axp22x pmics is mostly identical to the
> > > one on the axp20x pmics. One significant difference is that it cannot
> > > measure / monitor the usb voltage / current.
> > 
> > Acked-By: Sebastian Reichel <sre@kernel.org>
> > 
> > What's the merge strategy for this patchset?
> 
> All of the separate bits can be merged separately without
> problems, [...]

OK, I queued the first patch with Rob's Acked-By.

-- Sebastian
Lee Jones June 10, 2016, 2:56 p.m. UTC | #7
On Thu, 02 Jun 2016, Hans de Goede wrote:

> Add axp20x-usb-power-supply for axp22x pmics.
> 
> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
> ---
> Changes in v2:
> -Change compatible string for axp22x usb-power-supply cell to match v2 of:
>  "power: axp20x_usb: Add support for usb power-supply on axp22x pmics"
> ---
>  drivers/mfd/axp20x.c | 10 ++++++++++
>  1 file changed, 10 insertions(+)

Applied, thanks.

> diff --git a/drivers/mfd/axp20x.c b/drivers/mfd/axp20x.c
> index ca04361..6364dab 100644
> --- a/drivers/mfd/axp20x.c
> +++ b/drivers/mfd/axp20x.c
> @@ -160,6 +160,11 @@ static struct resource axp20x_usb_power_supply_resources[] = {
>  	DEFINE_RES_IRQ_NAMED(AXP20X_IRQ_VBUS_NOT_VALID, "VBUS_NOT_VALID"),
>  };
>  
> +static struct resource axp22x_usb_power_supply_resources[] = {
> +	DEFINE_RES_IRQ_NAMED(AXP22X_IRQ_VBUS_PLUGIN, "VBUS_PLUGIN"),
> +	DEFINE_RES_IRQ_NAMED(AXP22X_IRQ_VBUS_REMOVAL, "VBUS_REMOVAL"),
> +};
> +
>  static struct resource axp22x_pek_resources[] = {
>  	{
>  		.name   = "PEK_DBR",
> @@ -527,6 +532,11 @@ static struct mfd_cell axp22x_cells[] = {
>  		.resources		= axp22x_pek_resources,
>  	}, {
>  		.name			= "axp20x-regulator",
> +	}, {
> +		.name		= "axp20x-usb-power-supply",
> +		.of_compatible	= "x-powers,axp221-usb-power-supply",
> +		.num_resources	= ARRAY_SIZE(axp22x_usb_power_supply_resources),
> +		.resources	= axp22x_usb_power_supply_resources,
>  	},
>  };
>
Lee Jones June 10, 2016, 2:57 p.m. UTC | #8
On Thu, 02 Jun 2016, Hans de Goede wrote:

> The axp22x pmic has a bunch of volatile registers besides the interrupt
> ones, extend axp22x_volatile_ranges with these.
> 
> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
> Acked-by: Chen-Yu Tsai <wens@csie.org>
> ---
> Changes in v2:
> -Added Chen-Yu's Acked-by
> ---
>  drivers/mfd/axp20x.c | 3 +++
>  1 file changed, 3 insertions(+)

Applied, thanks.

> diff --git a/drivers/mfd/axp20x.c b/drivers/mfd/axp20x.c
> index e4e3297..ca04361 100644
> --- a/drivers/mfd/axp20x.c
> +++ b/drivers/mfd/axp20x.c
> @@ -93,7 +93,10 @@ static const struct regmap_range axp22x_writeable_ranges[] = {
>  };
>  
>  static const struct regmap_range axp22x_volatile_ranges[] = {
> +	regmap_reg_range(AXP20X_PWR_INPUT_STATUS, AXP20X_PWR_OP_MODE),
>  	regmap_reg_range(AXP20X_IRQ1_EN, AXP20X_IRQ5_STATE),
> +	regmap_reg_range(AXP22X_GPIO_STATE, AXP22X_GPIO_STATE),
> +	regmap_reg_range(AXP20X_FG_RES, AXP20X_FG_RES),
>  };
>  
>  static const struct regmap_access_table axp22x_writeable_table = {
Hans de Goede June 10, 2016, 6:47 p.m. UTC | #9
Hi,

On 10-06-16 16:56, Lee Jones wrote:
> On Thu, 02 Jun 2016, Hans de Goede wrote:
>
>> Add axp20x-usb-power-supply for axp22x pmics.
>>
>> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
>> ---
>> Changes in v2:
>> -Change compatible string for axp22x usb-power-supply cell to match v2 of:
>>  "power: axp20x_usb: Add support for usb power-supply on axp22x pmics"
>> ---
>>  drivers/mfd/axp20x.c | 10 ++++++++++
>>  1 file changed, 10 insertions(+)
>
> Applied, thanks.

Thanks, any chance we can see this show up soonish in :

https://git.kernel.org/cgit/linux/kernel/git/lee/mfd.git/log/?h=for-mfd-next

?

We keep a branch with all the foo-for-next branches relevant for
sunxi merged in for testing and it would be good to get these in there.

Regards,

Hans



>
>> diff --git a/drivers/mfd/axp20x.c b/drivers/mfd/axp20x.c
>> index ca04361..6364dab 100644
>> --- a/drivers/mfd/axp20x.c
>> +++ b/drivers/mfd/axp20x.c
>> @@ -160,6 +160,11 @@ static struct resource axp20x_usb_power_supply_resources[] = {
>>  	DEFINE_RES_IRQ_NAMED(AXP20X_IRQ_VBUS_NOT_VALID, "VBUS_NOT_VALID"),
>>  };
>>
>> +static struct resource axp22x_usb_power_supply_resources[] = {
>> +	DEFINE_RES_IRQ_NAMED(AXP22X_IRQ_VBUS_PLUGIN, "VBUS_PLUGIN"),
>> +	DEFINE_RES_IRQ_NAMED(AXP22X_IRQ_VBUS_REMOVAL, "VBUS_REMOVAL"),
>> +};
>> +
>>  static struct resource axp22x_pek_resources[] = {
>>  	{
>>  		.name   = "PEK_DBR",
>> @@ -527,6 +532,11 @@ static struct mfd_cell axp22x_cells[] = {
>>  		.resources		= axp22x_pek_resources,
>>  	}, {
>>  		.name			= "axp20x-regulator",
>> +	}, {
>> +		.name		= "axp20x-usb-power-supply",
>> +		.of_compatible	= "x-powers,axp221-usb-power-supply",
>> +		.num_resources	= ARRAY_SIZE(axp22x_usb_power_supply_resources),
>> +		.resources	= axp22x_usb_power_supply_resources,
>>  	},
>>  };
>>
>
--
To unsubscribe from this list: send the line "unsubscribe devicetree" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
diff mbox

Patch

diff --git a/Documentation/devicetree/bindings/power_supply/axp20x_usb_power.txt b/Documentation/devicetree/bindings/power_supply/axp20x_usb_power.txt
index 862f4a4..f1d7bee 100644
--- a/Documentation/devicetree/bindings/power_supply/axp20x_usb_power.txt
+++ b/Documentation/devicetree/bindings/power_supply/axp20x_usb_power.txt
@@ -1,7 +1,8 @@ 
 AXP20x USB power supply
 
 Required Properties:
--compatible: "x-powers,axp202-usb-power-supply"
+-compatible: One of: "x-powers,axp202-usb-power-supply"
+                     "x-powers,axp221-usb-power-supply"
 
 This node is a subnode of the axp20x PMIC.
 
diff --git a/drivers/power/axp20x_usb_power.c b/drivers/power/axp20x_usb_power.c
index 421a90b..6af6feb 100644
--- a/drivers/power/axp20x_usb_power.c
+++ b/drivers/power/axp20x_usb_power.c
@@ -42,6 +42,7 @@ 
 #define AXP20X_VBUS_MON_VBUS_VALID	BIT(3)
 
 struct axp20x_usb_power {
+	struct device_node *np;
 	struct regmap *regmap;
 	struct power_supply *supply;
 };
@@ -85,7 +86,12 @@  static int axp20x_usb_power_get_property(struct power_supply *psy,
 
 		switch (v & AXP20X_VBUS_CLIMIT_MASK) {
 		case AXP20X_VBUC_CLIMIT_100mA:
-			val->intval = 100000;
+			if (of_device_is_compatible(power->np,
+					"x-powers,axp202-usb-power-supply")) {
+				val->intval = 100000;
+			} else {
+				val->intval = -1; /* No 100mA limit */
+			}
 			break;
 		case AXP20X_VBUC_CLIMIT_500mA:
 			val->intval = 500000;
@@ -122,16 +128,19 @@  static int axp20x_usb_power_get_property(struct power_supply *psy,
 			break;
 		}
 
-		ret = regmap_read(power->regmap, AXP20X_USB_OTG_STATUS, &v);
-		if (ret)
-			return ret;
+		val->intval = POWER_SUPPLY_HEALTH_GOOD;
 
-		if (!(v & AXP20X_USB_STATUS_VBUS_VALID)) {
-			val->intval = POWER_SUPPLY_HEALTH_UNSPEC_FAILURE;
-			break;
-		}
+		if (of_device_is_compatible(power->np,
+				"x-powers,axp202-usb-power-supply")) {
+			ret = regmap_read(power->regmap,
+					  AXP20X_USB_OTG_STATUS, &v);
+			if (ret)
+				return ret;
 
-		val->intval = POWER_SUPPLY_HEALTH_GOOD;
+			if (!(v & AXP20X_USB_STATUS_VBUS_VALID))
+				val->intval =
+					POWER_SUPPLY_HEALTH_UNSPEC_FAILURE;
+		}
 		break;
 	case POWER_SUPPLY_PROP_PRESENT:
 		val->intval = !!(input & AXP20X_PWR_STATUS_VBUS_PRESENT);
@@ -156,6 +165,14 @@  static enum power_supply_property axp20x_usb_power_properties[] = {
 	POWER_SUPPLY_PROP_CURRENT_NOW,
 };
 
+static enum power_supply_property axp22x_usb_power_properties[] = {
+	POWER_SUPPLY_PROP_HEALTH,
+	POWER_SUPPLY_PROP_PRESENT,
+	POWER_SUPPLY_PROP_ONLINE,
+	POWER_SUPPLY_PROP_VOLTAGE_MIN,
+	POWER_SUPPLY_PROP_CURRENT_MAX,
+};
+
 static const struct power_supply_desc axp20x_usb_power_desc = {
 	.name = "axp20x-usb",
 	.type = POWER_SUPPLY_TYPE_USB,
@@ -164,13 +181,25 @@  static const struct power_supply_desc axp20x_usb_power_desc = {
 	.get_property = axp20x_usb_power_get_property,
 };
 
+static const struct power_supply_desc axp22x_usb_power_desc = {
+	.name = "axp20x-usb",
+	.type = POWER_SUPPLY_TYPE_USB,
+	.properties = axp22x_usb_power_properties,
+	.num_properties = ARRAY_SIZE(axp22x_usb_power_properties),
+	.get_property = axp20x_usb_power_get_property,
+};
+
 static int axp20x_usb_power_probe(struct platform_device *pdev)
 {
 	struct axp20x_dev *axp20x = dev_get_drvdata(pdev->dev.parent);
 	struct power_supply_config psy_cfg = {};
 	struct axp20x_usb_power *power;
-	static const char * const irq_names[] = { "VBUS_PLUGIN",
-		"VBUS_REMOVAL", "VBUS_VALID", "VBUS_NOT_VALID" };
+	static const char * const axp20x_irq_names[] = { "VBUS_PLUGIN",
+		"VBUS_REMOVAL", "VBUS_VALID", "VBUS_NOT_VALID", NULL };
+	static const char * const axp22x_irq_names[] = {
+		"VBUS_PLUGIN", "VBUS_REMOVAL", NULL };
+	static const char * const *irq_names;
+	const struct power_supply_desc *usb_power_desc;
 	int i, irq, ret;
 
 	if (!of_device_is_available(pdev->dev.of_node))
@@ -185,31 +214,47 @@  static int axp20x_usb_power_probe(struct platform_device *pdev)
 	if (!power)
 		return -ENOMEM;
 
+	power->np = pdev->dev.of_node;
 	power->regmap = axp20x->regmap;
 
-	/* Enable vbus valid checking */
-	ret = regmap_update_bits(power->regmap, AXP20X_VBUS_MON,
-		    AXP20X_VBUS_MON_VBUS_VALID, AXP20X_VBUS_MON_VBUS_VALID);
-	if (ret)
-		return ret;
+	if (of_device_is_compatible(power->np,
+			"x-powers,axp202-usb-power-supply")) {
+		/* Enable vbus valid checking */
+		ret = regmap_update_bits(power->regmap, AXP20X_VBUS_MON,
+					 AXP20X_VBUS_MON_VBUS_VALID,
+					 AXP20X_VBUS_MON_VBUS_VALID);
+		if (ret)
+			return ret;
 
-	/* Enable vbus voltage and current measurement */
-	ret = regmap_update_bits(power->regmap, AXP20X_ADC_EN1,
+		/* Enable vbus voltage and current measurement */
+		ret = regmap_update_bits(power->regmap, AXP20X_ADC_EN1,
 			AXP20X_ADC_EN1_VBUS_CURR | AXP20X_ADC_EN1_VBUS_VOLT,
 			AXP20X_ADC_EN1_VBUS_CURR | AXP20X_ADC_EN1_VBUS_VOLT);
-	if (ret)
-		return ret;
+		if (ret)
+			return ret;
+
+		usb_power_desc = &axp20x_usb_power_desc;
+		irq_names = axp20x_irq_names;
+	} else if (of_device_is_compatible(power->np,
+			"x-powers,axp221-usb-power-supply")) {
+		usb_power_desc = &axp22x_usb_power_desc;
+		irq_names = axp22x_irq_names;
+	} else {
+		dev_err(&pdev->dev, "Unsupported AXP variant: %ld\n",
+			axp20x->variant);
+		return -EINVAL;
+	}
 
 	psy_cfg.of_node = pdev->dev.of_node;
 	psy_cfg.drv_data = power;
 
-	power->supply = devm_power_supply_register(&pdev->dev,
-					&axp20x_usb_power_desc, &psy_cfg);
+	power->supply = devm_power_supply_register(&pdev->dev, usb_power_desc,
+						   &psy_cfg);
 	if (IS_ERR(power->supply))
 		return PTR_ERR(power->supply);
 
 	/* Request irqs after registering, as irqs may trigger immediately */
-	for (i = 0; i < ARRAY_SIZE(irq_names); i++) {
+	for (i = 0; irq_names[i]; i++) {
 		irq = platform_get_irq_byname(pdev, irq_names[i]);
 		if (irq < 0) {
 			dev_warn(&pdev->dev, "No IRQ for %s: %d\n",
@@ -229,6 +274,7 @@  static int axp20x_usb_power_probe(struct platform_device *pdev)
 
 static const struct of_device_id axp20x_usb_power_match[] = {
 	{ .compatible = "x-powers,axp202-usb-power-supply" },
+	{ .compatible = "x-powers,axp221-usb-power-supply" },
 	{ }
 };
 MODULE_DEVICE_TABLE(of, axp20x_usb_power_match);