diff mbox

[PATCHv3,3/5] pinctrl: mvebu: pinctrl driver for 98DX3236 SoC

Message ID 20170106041517.9589-4-chris.packham@alliedtelesis.co.nz
State New
Headers show

Commit Message

Chris Packham Jan. 6, 2017, 4:15 a.m. UTC 
From: Kalyan Kinthada <kalyan.kinthada@alliedtelesis.co.nz>

This pinctrl driver supports the 98DX3236, 98DX3336 and 98DX4251 SoCs
from Marvell.

Signed-off-by: Kalyan Kinthada <kalyan.kinthada@alliedtelesis.co.nz>
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
---
    Changes in v2:
    - include sdio support for the 98DX4251
    Changes in v3:
    - None

 .../pinctrl/marvell,armada-98dx3236-pinctrl.txt    |  46 ++++++
 drivers/pinctrl/mvebu/pinctrl-armada-xp.c          | 155 +++++++++++++++++++++
 2 files changed, 201 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/pinctrl/marvell,armada-98dx3236-pinctrl.txt

Comments

Rob Herring (Arm) Jan. 9, 2017, 6:41 p.m. UTC | #1 
On Fri, Jan 06, 2017 at 05:15:00PM +1300, Chris Packham wrote:
> From: Kalyan Kinthada <kalyan.kinthada@alliedtelesis.co.nz>
> 
> This pinctrl driver supports the 98DX3236, 98DX3336 and 98DX4251 SoCs
> from Marvell.
> 
> Signed-off-by: Kalyan Kinthada <kalyan.kinthada@alliedtelesis.co.nz>
> Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
> ---
>     Changes in v2:
>     - include sdio support for the 98DX4251
>     Changes in v3:
>     - None
> 
>  .../pinctrl/marvell,armada-98dx3236-pinctrl.txt    |  46 ++++++

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

>  drivers/pinctrl/mvebu/pinctrl-armada-xp.c          | 155 +++++++++++++++++++++
>  2 files changed, 201 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/pinctrl/marvell,armada-98dx3236-pinctrl.txt
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Linus Walleij Jan. 11, 2017, 2:44 p.m. UTC | #2 
On Fri, Jan 6, 2017 at 5:15 AM, Chris Packham
<chris.packham@alliedtelesis.co.nz> wrote:

> From: Kalyan Kinthada <kalyan.kinthada@alliedtelesis.co.nz>
>
> This pinctrl driver supports the 98DX3236, 98DX3336 and 98DX4251 SoCs
> from Marvell.
>
> Signed-off-by: Kalyan Kinthada <kalyan.kinthada@alliedtelesis.co.nz>
> Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>

I am waiting for an ACK or comment from the maintainers on
this patch. Sebastian?

Yours,
Linus Walleij
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Sebastian Hesselbarth Jan. 11, 2017, 8:55 p.m. UTC | #3 
On 01/11/2017 03:44 PM, Linus Walleij wrote:
> On Fri, Jan 6, 2017 at 5:15 AM, Chris Packham
> <chris.packham@alliedtelesis.co.nz> wrote:
>
>> From: Kalyan Kinthada <kalyan.kinthada@alliedtelesis.co.nz>
>>
>> This pinctrl driver supports the 98DX3236, 98DX3336 and 98DX4251 SoCs
>> from Marvell.
>>
>> Signed-off-by: Kalyan Kinthada <kalyan.kinthada@alliedtelesis.co.nz>
>> Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
>
> I am waiting for an ACK or comment from the maintainers on
> this patch. Sebastian?

Sorry for the ignorance.

I don't have the patch to reply to inline, but:

- In the driver MPP_MODE2, spi0 there is a typo "csk" instead of "sck".
- MPP_MODE5 binding "dev","bootcs" and driver "dev","bootcs0" differ.
- MPP_MODE6 binding "gpio" and driver "gpo" differ.
- MPP_MODE17 binding "dev","clk" and driver "dev","clkout" differ.
- MPP_MODE19 binding mentiones "dev","rb" but driver does not.
- MPP_MODE20 binding "gpio" and driver "gpo" differ.
- MPP_MODE20 binding "dev","we" and driver "dev","we0" differ.
- MPP_MODE21 through MPP_MODE30 binding "gpio" and driver "gpo" differ.
- remove spaces before "0,     0" in mv98dx3236_mpp_gpio_ranges.

Most of it is cosmetic stuff, so if you fix it feel free to add my

Acked-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>

Sebastian
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Chris Packham Jan. 12, 2017, 9:13 a.m. UTC | #4 
On 12/01/17 09:56, Sebastian Hesselbarth wrote:
> On 01/11/2017 03:44 PM, Linus Walleij wrote:
>> On Fri, Jan 6, 2017 at 5:15 AM, Chris Packham
>> <chris.packham@alliedtelesis.co.nz> wrote:
>>
>>> From: Kalyan Kinthada <kalyan.kinthada@alliedtelesis.co.nz>
>>>
>>> This pinctrl driver supports the 98DX3236, 98DX3336 and 98DX4251 SoCs
>>> from Marvell.
>>>
>>> Signed-off-by: Kalyan Kinthada <kalyan.kinthada@alliedtelesis.co.nz>
>>> Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
>>
>> I am waiting for an ACK or comment from the maintainers on
>> this patch. Sebastian?
>
> Sorry for the ignorance.
>
> I don't have the patch to reply to inline, but:
>
> - In the driver MPP_MODE2, spi0 there is a typo "csk" instead of "sck".
> - MPP_MODE5 binding "dev","bootcs" and driver "dev","bootcs0" differ.
> - MPP_MODE6 binding "gpio" and driver "gpo" differ.
> - MPP_MODE17 binding "dev","clk" and driver "dev","clkout" differ.
> - MPP_MODE19 binding mentiones "dev","rb" but driver does not.
> - MPP_MODE20 binding "gpio" and driver "gpo" differ.
> - MPP_MODE20 binding "dev","we" and driver "dev","we0" differ.
> - MPP_MODE21 through MPP_MODE30 binding "gpio" and driver "gpo" differ.
> - remove spaces before "0,     0" in mv98dx3236_mpp_gpio_ranges.
>
> Most of it is cosmetic stuff, so if you fix it feel free to add my
>
> Acked-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>

Hi Sebastian,

Hopefully I can get a v4 out with the above fixed soon.

One point on "gpio" vs "gpo" this one isn't a typo. Some of these pins 
can be driven as outputs but can't be used as inputs. From a pinctrl 
driver point of view there is no difference but I did want to convey 
that from a system design point of view if you really need something to 
be an input you shouldn't use one of these pins. This is also noted in 
the datasheets so it doesn't necessarily need repeating. If you still 
want me to use "gpio" in the code and binding I'm happy to do so.

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diff mbox

Patch

diff --git a/Documentation/devicetree/bindings/pinctrl/marvell,armada-98dx3236-pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/marvell,armada-98dx3236-pinctrl.txt
new file mode 100644
index 000000000000..d4e6ecdfc853
--- /dev/null
+++ b/Documentation/devicetree/bindings/pinctrl/marvell,armada-98dx3236-pinctrl.txt
@@ -0,0 +1,46 @@ 
+* Marvell 98dx3236 pinctrl driver for mpp
+
+Please refer to marvell,mvebu-pinctrl.txt in this directory for common binding
+part and usage
+
+Required properties:
+- compatible: "marvell,98dx3236-pinctrl" or "marvell,98dx4251-pinctrl"
+- reg: register specifier of MPP registers
+
+This driver supports all 98dx3236, 98dx3336 and 98dx4251 variants
+
+name          pins     functions
+================================================================================
+mpp0          0        gpio, spi0(mosi), dev(ad8)
+mpp1          1        gpio, spi0(miso), dev(ad9)
+mpp2          2        gpio, spi0(sck), dev(ad10)
+mpp3          3        gpio, spi0(cs0), dev(ad11)
+mpp4          4        gpio, spi0(cs1), smi(mdc), dev(cs0)
+mpp5          5        gpio, pex(rsto), sd0(cmd), dev(bootcs)
+mpp6          6        gpio, sd0(clk), dev(a2)
+mpp7          7        gpio, sd0(d0), dev(ale0)
+mpp8          8        gpio, sd0(d1), dev(ale1)
+mpp9          9        gpio, sd0(d2), dev(ready0)
+mpp10         10       gpio, sd0(d3), dev(ad12)
+mpp11         11       gpio, uart1(rxd), uart0(cts), dev(ad13)
+mpp12         12       gpio, uart1(txd), uart0(rts), dev(ad14)
+mpp13         13       gpio, intr(out), dev(ad15)
+mpp14         14       gpio, i2c0(sck)
+mpp15         15       gpio, i2c0(sda)
+mpp16         16       gpio, dev(oe)
+mpp17         17       gpio, dev(clk)
+mpp18         18       gpio, uart1(txd)
+mpp19         19       gpio, uart1(rxd), dev(rb)
+mpp20         20       gpio, dev(we)
+mpp21         21       gpio, dev(ad0)
+mpp22         22       gpio, dev(ad1)
+mpp23         23       gpio, dev(ad2)
+mpp24         24       gpio, dev(ad3)
+mpp25         25       gpio, dev(ad4)
+mpp26         26       gpio, dev(ad5)
+mpp27         27       gpio, dev(ad6)
+mpp28         28       gpio, dev(ad7)
+mpp29         29       gpio, dev(a0)
+mpp30         30       gpio, dev(a1)
+mpp31         31       gpio, slv_smi(mdc), smi(mdc), dev(we1)
+mpp32         32       gpio, slv_smi(mdio), smi(mdio), dev(cs1)
diff --git a/drivers/pinctrl/mvebu/pinctrl-armada-xp.c b/drivers/pinctrl/mvebu/pinctrl-armada-xp.c
index e4ea71a9d985..554eeae8cd21 100644
--- a/drivers/pinctrl/mvebu/pinctrl-armada-xp.c
+++ b/drivers/pinctrl/mvebu/pinctrl-armada-xp.c
@@ -49,6 +49,10 @@  enum armada_xp_variant {
 	V_MV78460	= BIT(2),
 	V_MV78230_PLUS	= (V_MV78230 | V_MV78260 | V_MV78460),
 	V_MV78260_PLUS	= (V_MV78260 | V_MV78460),
+	V_98DX3236	= BIT(3),
+	V_98DX3336	= BIT(4),
+	V_98DX4251	= BIT(5),
+	V_98DX3236_PLUS	= (V_98DX3236 | V_98DX3336 | V_98DX4251),
 };
 
 static struct mvebu_mpp_mode armada_xp_mpp_modes[] = {
@@ -360,6 +364,130 @@  static struct mvebu_mpp_mode armada_xp_mpp_modes[] = {
 		 MPP_VAR_FUNCTION(0x1, "dev", "ad31",       V_MV78260_PLUS)),
 };
 
+static struct mvebu_mpp_mode mv98dx3236_mpp_modes[] = {
+	MPP_MODE(0,
+		 MPP_VAR_FUNCTION(0x0, "gpo", NULL,          V_98DX3236_PLUS),
+		 MPP_VAR_FUNCTION(0x2, "spi0", "mosi",       V_98DX3236_PLUS),
+		 MPP_VAR_FUNCTION(0x4, "dev", "ad8",         V_98DX3236_PLUS)),
+	MPP_MODE(1,
+		 MPP_VAR_FUNCTION(0x0, "gpio", NULL,         V_98DX3236_PLUS),
+		 MPP_VAR_FUNCTION(0x2, "spi0", "miso",       V_98DX3236_PLUS),
+		 MPP_VAR_FUNCTION(0x4, "dev", "ad9",         V_98DX3236_PLUS)),
+	MPP_MODE(2,
+		 MPP_VAR_FUNCTION(0x0, "gpio", NULL,         V_98DX3236_PLUS),
+		 MPP_VAR_FUNCTION(0x2, "spi0", "csk",        V_98DX3236_PLUS),
+		 MPP_VAR_FUNCTION(0x4, "dev", "ad10",        V_98DX3236_PLUS)),
+	MPP_MODE(3,
+		 MPP_VAR_FUNCTION(0x0, "gpio", NULL,         V_98DX3236_PLUS),
+		 MPP_VAR_FUNCTION(0x2, "spi0", "cs0",        V_98DX3236_PLUS),
+		 MPP_VAR_FUNCTION(0x4, "dev", "ad11",        V_98DX3236_PLUS)),
+	MPP_MODE(4,
+		 MPP_VAR_FUNCTION(0x0, "gpio", NULL,         V_98DX3236_PLUS),
+		 MPP_VAR_FUNCTION(0x2, "spi0", "cs1",        V_98DX3236_PLUS),
+		 MPP_VAR_FUNCTION(0x3, "smi", "mdc",         V_98DX3236_PLUS),
+		 MPP_VAR_FUNCTION(0x4, "dev", "cs0",         V_98DX3236_PLUS)),
+	MPP_MODE(5,
+		 MPP_VAR_FUNCTION(0x0, "gpio", NULL,         V_98DX3236_PLUS),
+		 MPP_VAR_FUNCTION(0x1, "pex", "rsto",        V_98DX3236_PLUS),
+		 MPP_VAR_FUNCTION(0x2, "sd0", "cmd",         V_98DX4251),
+		 MPP_VAR_FUNCTION(0x4, "dev", "bootcs0",     V_98DX3236_PLUS)),
+	MPP_MODE(6,
+		 MPP_VAR_FUNCTION(0x0, "gpo", NULL,          V_98DX3236_PLUS),
+		 MPP_VAR_FUNCTION(0x2, "sd0", "clk",         V_98DX4251),
+		 MPP_VAR_FUNCTION(0x4, "dev", "a2",          V_98DX3236_PLUS)),
+	MPP_MODE(7,
+		 MPP_VAR_FUNCTION(0x0, "gpio", NULL,         V_98DX3236_PLUS),
+		 MPP_VAR_FUNCTION(0x2, "sd0", "d0",          V_98DX4251),
+		 MPP_VAR_FUNCTION(0x4, "dev", "ale0",        V_98DX3236_PLUS)),
+	MPP_MODE(8,
+		 MPP_VAR_FUNCTION(0x0, "gpio", NULL,         V_98DX3236_PLUS),
+		 MPP_VAR_FUNCTION(0x2, "sd0", "d1",          V_98DX4251),
+		 MPP_VAR_FUNCTION(0x4, "dev", "ale1",        V_98DX3236_PLUS)),
+	MPP_MODE(9,
+		 MPP_VAR_FUNCTION(0x0, "gpio", NULL,         V_98DX3236_PLUS),
+		 MPP_VAR_FUNCTION(0x2, "sd0", "d2",          V_98DX4251),
+		 MPP_VAR_FUNCTION(0x4, "dev", "ready0",      V_98DX3236_PLUS)),
+	MPP_MODE(10,
+		 MPP_VAR_FUNCTION(0x0, "gpio", NULL,         V_98DX3236_PLUS),
+		 MPP_VAR_FUNCTION(0x2, "sd0", "d3",          V_98DX4251),
+		 MPP_VAR_FUNCTION(0x4, "dev", "ad12",        V_98DX3236_PLUS)),
+	MPP_MODE(11,
+		 MPP_VAR_FUNCTION(0x0, "gpio", NULL,         V_98DX3236_PLUS),
+		 MPP_VAR_FUNCTION(0x2, "uart1", "rxd",       V_98DX3236_PLUS),
+		 MPP_VAR_FUNCTION(0x3, "uart0", "cts",       V_98DX3236_PLUS),
+		 MPP_VAR_FUNCTION(0x4, "dev", "ad13",        V_98DX3236_PLUS)),
+	MPP_MODE(12,
+		 MPP_VAR_FUNCTION(0x0, "gpo", NULL,          V_98DX3236_PLUS),
+		 MPP_VAR_FUNCTION(0x2, "uart1", "txd",       V_98DX3236_PLUS),
+		 MPP_VAR_FUNCTION(0x3, "uart0", "rts",       V_98DX3236_PLUS),
+		 MPP_VAR_FUNCTION(0x4, "dev", "ad14",        V_98DX3236_PLUS)),
+	MPP_MODE(13,
+		 MPP_VAR_FUNCTION(0x0, "gpio", NULL,         V_98DX3236_PLUS),
+		 MPP_VAR_FUNCTION(0x1, "intr", "out",        V_98DX3236_PLUS),
+		 MPP_VAR_FUNCTION(0x4, "dev", "ad15",        V_98DX3236_PLUS)),
+	MPP_MODE(14,
+		 MPP_VAR_FUNCTION(0x0, "gpio", NULL,         V_98DX3236_PLUS),
+		 MPP_VAR_FUNCTION(0x1, "i2c0", "sck",        V_98DX3236_PLUS)),
+	MPP_MODE(15,
+		 MPP_VAR_FUNCTION(0x0, "gpio", NULL,         V_98DX3236_PLUS),
+		 MPP_VAR_FUNCTION(0x4, "i2c0", "sda",        V_98DX3236_PLUS)),
+	MPP_MODE(16,
+		 MPP_VAR_FUNCTION(0x0, "gpo", NULL,          V_98DX3236_PLUS),
+		 MPP_VAR_FUNCTION(0x4, "dev", "oe",          V_98DX3236_PLUS)),
+	MPP_MODE(17,
+		 MPP_VAR_FUNCTION(0x0, "gpo", NULL,          V_98DX3236_PLUS),
+		 MPP_VAR_FUNCTION(0x4, "dev", "clkout",      V_98DX3236_PLUS)),
+	MPP_MODE(18,
+		 MPP_VAR_FUNCTION(0x0, "gpio", NULL,         V_98DX3236_PLUS),
+		 MPP_VAR_FUNCTION(0x3, "uart1", "txd",       V_98DX3236_PLUS)),
+	MPP_MODE(19,
+		 MPP_VAR_FUNCTION(0x0, "gpio", NULL,         V_98DX3236_PLUS),
+		 MPP_VAR_FUNCTION(0x3, "uart1", "rxd",       V_98DX3236_PLUS)),
+	MPP_MODE(20,
+		 MPP_VAR_FUNCTION(0x0, "gpo", NULL,          V_98DX3236_PLUS),
+		 MPP_VAR_FUNCTION(0x4, "dev", "we0",         V_98DX3236_PLUS)),
+	MPP_MODE(21,
+		 MPP_VAR_FUNCTION(0x0, "gpo", NULL,          V_98DX3236_PLUS),
+		 MPP_VAR_FUNCTION(0x1, "dev", "ad0",         V_98DX3236_PLUS)),
+	MPP_MODE(22,
+		 MPP_VAR_FUNCTION(0x0, "gpo", NULL,          V_98DX3236_PLUS),
+		 MPP_VAR_FUNCTION(0x1, "dev", "ad1",         V_98DX3236_PLUS)),
+	MPP_MODE(23,
+		 MPP_VAR_FUNCTION(0x0, "gpo", NULL,          V_98DX3236_PLUS),
+		 MPP_VAR_FUNCTION(0x1, "dev", "ad2",         V_98DX3236_PLUS)),
+	MPP_MODE(24,
+		 MPP_VAR_FUNCTION(0x0, "gpo", NULL,          V_98DX3236_PLUS),
+		 MPP_VAR_FUNCTION(0x1, "dev", "ad3",         V_98DX3236_PLUS)),
+	MPP_MODE(25,
+		 MPP_VAR_FUNCTION(0x0, "gpo", NULL,          V_98DX3236_PLUS),
+		 MPP_VAR_FUNCTION(0x1, "dev", "ad4",         V_98DX3236_PLUS)),
+	MPP_MODE(26,
+		 MPP_VAR_FUNCTION(0x0, "gpo", NULL,          V_98DX3236_PLUS),
+		 MPP_VAR_FUNCTION(0x1, "dev", "ad5",         V_98DX3236_PLUS)),
+	MPP_MODE(27,
+		 MPP_VAR_FUNCTION(0x0, "gpo", NULL,          V_98DX3236_PLUS),
+		 MPP_VAR_FUNCTION(0x1, "dev", "ad6",         V_98DX3236_PLUS)),
+	MPP_MODE(28,
+		 MPP_VAR_FUNCTION(0x0, "gpo", NULL,          V_98DX3236_PLUS),
+		 MPP_VAR_FUNCTION(0x1, "dev", "ad7",         V_98DX3236_PLUS)),
+	MPP_MODE(29,
+		 MPP_VAR_FUNCTION(0x0, "gpo", NULL,          V_98DX3236_PLUS),
+		 MPP_VAR_FUNCTION(0x1, "dev", "a0",          V_98DX3236_PLUS)),
+	MPP_MODE(30,
+		 MPP_VAR_FUNCTION(0x0, "gpo", NULL,          V_98DX3236_PLUS),
+		 MPP_VAR_FUNCTION(0x1, "dev", "a1",          V_98DX3236_PLUS)),
+	MPP_MODE(31,
+		 MPP_VAR_FUNCTION(0x0, "gpio", NULL,         V_98DX3236_PLUS),
+		 MPP_VAR_FUNCTION(0x1, "slv_smi", "mdc",     V_98DX3236_PLUS),
+		 MPP_VAR_FUNCTION(0x3, "smi", "mdc",         V_98DX3236_PLUS),
+		 MPP_VAR_FUNCTION(0x4, "dev", "we1",         V_98DX3236_PLUS)),
+	MPP_MODE(32,
+		 MPP_VAR_FUNCTION(0x0, "gpio", NULL,         V_98DX3236_PLUS),
+		 MPP_VAR_FUNCTION(0x1, "slv_smi", "mdio",    V_98DX3236_PLUS),
+		 MPP_VAR_FUNCTION(0x3, "smi", "mdio",        V_98DX3236_PLUS),
+		 MPP_VAR_FUNCTION(0x4, "dev", "cs1",         V_98DX3236_PLUS)),
+};
+
 static struct mvebu_pinctrl_soc_info armada_xp_pinctrl_info;
 
 static const struct of_device_id armada_xp_pinctrl_of_match[] = {
@@ -375,6 +503,14 @@  static const struct of_device_id armada_xp_pinctrl_of_match[] = {
 		.compatible = "marvell,mv78460-pinctrl",
 		.data       = (void *) V_MV78460,
 	},
+	{
+		.compatible = "marvell,98dx3236-pinctrl",
+		.data       = (void *) V_98DX3236,
+	},
+	{
+		.compatible = "marvell,98dx4251-pinctrl",
+		.data       = (void *) V_98DX4251,
+	},
 	{ },
 };
 
@@ -407,6 +543,14 @@  static struct pinctrl_gpio_range mv78460_mpp_gpio_ranges[] = {
 	MPP_GPIO_RANGE(2,  64, 64,  3),
 };
 
+static struct mvebu_mpp_ctrl mv98dx3236_mpp_controls[] = {
+	MPP_FUNC_CTRL(0, 32, NULL, armada_xp_mpp_ctrl),
+};
+
+static struct pinctrl_gpio_range mv98dx3236_mpp_gpio_ranges[] = {
+	MPP_GPIO_RANGE(0,   0,  0, 32),
+};
+
 static int armada_xp_pinctrl_suspend(struct platform_device *pdev,
 				     pm_message_t state)
 {
@@ -488,6 +632,17 @@  static int armada_xp_pinctrl_probe(struct platform_device *pdev)
 		soc->gpioranges = mv78460_mpp_gpio_ranges;
 		soc->ngpioranges = ARRAY_SIZE(mv78460_mpp_gpio_ranges);
 		break;
+	case V_98DX3236:
+	case V_98DX3336:
+	case V_98DX4251:
+		/* fall-through */
+		soc->controls = mv98dx3236_mpp_controls;
+		soc->ncontrols = ARRAY_SIZE(mv98dx3236_mpp_controls);
+		soc->modes = mv98dx3236_mpp_modes;
+		soc->nmodes = mv98dx3236_mpp_controls[0].npins;
+		soc->gpioranges = mv98dx3236_mpp_gpio_ranges;
+		soc->ngpioranges = ARRAY_SIZE(mv98dx3236_mpp_gpio_ranges);
+		break;
 	}
 
 	nregs = DIV_ROUND_UP(soc->nmodes, MVEBU_MPPS_PER_REG);