Commit 684bba2f authored by Rob Herring's avatar Rob Herring Committed by Linus Walleij
Browse files

gpio: pxa: add PXA1928 gpio type support



Add support for PXA1928 GPIOs. The PXA1928 adds a 6th bank from previous
generations.

Signed-off-by: default avatarJing Xiang <jxiang@marvell.com>
Signed-off-by: default avatarXiangzhan Meng <mengxzh@marvell.com>
[robh: ported to 3.19 from vendor kernel]
Signed-off-by: default avatarRob Herring <robh@kernel.org>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Alexandre Courbot <gnurou@gmail.com>
Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
parent 99480049
Loading
Loading
Loading
Loading
+15 −2
Original line number Diff line number Diff line
@@ -41,9 +41,12 @@
 * BANK 4 - 0x0104  0x0110  0x011C  0x0128  0x0134  0x0140  0x014C
 * BANK 5 - 0x0108  0x0114  0x0120  0x012C  0x0138  0x0144  0x0150
 *
 * BANK 6 - 0x0200  0x020C  0x0218  0x0224  0x0230  0x023C  0x0248
 *
 * NOTE:
 *   BANK 3 is only available on PXA27x and later processors.
 *   BANK 4 and 5 are only available on PXA935
 *   BANK 4 and 5 are only available on PXA935, PXA1928
 *   BANK 6 is only available on PXA1928
 */

#define GPLR_OFFSET	0x00
@@ -56,7 +59,8 @@
#define GAFR_OFFSET	0x54
#define ED_MASK_OFFSET	0x9C	/* GPIO edge detection for AP side */

#define BANK_OFF(n)	(((n) < 3) ? (n) << 2 : 0x100 + (((n) - 3) << 2))
#define BANK_OFF(n)	(((n) < 3) ? (n) << 2 : ((n) > 5 ? 0x200 : 0x100)	\
			+ (((n) % 3) << 2))

int pxa_last_gpio;
static int irq_base;
@@ -92,6 +96,7 @@ enum pxa_gpio_type {
	PXA93X_GPIO,
	MMP_GPIO = 0x10,
	MMP2_GPIO,
	PXA1928_GPIO,
};

struct pxa_gpio_id {
@@ -139,6 +144,11 @@ static struct pxa_gpio_id mmp2_id = {
	.gpio_nums	= 192,
};

static struct pxa_gpio_id pxa1928_id = {
	.type		= PXA1928_GPIO,
	.gpio_nums	= 224,
};

#define for_each_gpio_chip(i, c)			\
	for (i = 0, c = &pxa_gpio_chips[0]; i <= pxa_last_gpio; i += 32, c++)

@@ -486,6 +496,7 @@ static int pxa_gpio_nums(struct platform_device *pdev)
	case PXA93X_GPIO:
	case MMP_GPIO:
	case MMP2_GPIO:
	case PXA1928_GPIO:
		gpio_type = pxa_id->type;
		count = pxa_id->gpio_nums - 1;
		break;
@@ -505,6 +516,7 @@ static const struct of_device_id pxa_gpio_dt_ids[] = {
	{ .compatible = "marvell,pxa93x-gpio",	.data = &pxa93x_id, },
	{ .compatible = "marvell,mmp-gpio",	.data = &mmp_id, },
	{ .compatible = "marvell,mmp2-gpio",	.data = &mmp2_id, },
	{ .compatible = "marvell,pxa1928-gpio",	.data = &pxa1928_id, },
	{}
};

@@ -666,6 +678,7 @@ static const struct platform_device_id gpio_id_table[] = {
	{ "pxa93x-gpio",	(unsigned long)&pxa93x_id },
	{ "mmp-gpio",		(unsigned long)&mmp_id },
	{ "mmp2-gpio",		(unsigned long)&mmp2_id },
	{ "pxa1928-gpio",	(unsigned long)&pxa1928_id },
	{ },
};