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Commit fa87931a authored by Kevin Hilman's avatar Kevin Hilman
Browse files

gpio/omap: consolidate direction, input, output, remove #ifdefs 



Add register offset fields to GPIO platform_data for registers.

This patch adds registers that control direction, input and output
data.  Using these register offsets in the common driver allows
removal of #ifdefs and greatly improves readability.

Also create dedicated data out functions: one for banks with dedicated
set/clear registers, and another for banks with a single mask
register.

Signed-off-by: default avatarKevin Hilman <khilman@ti.com>
parent a8be8daf

arch/arm/mach-omap1/gpio15xx.c

+14 −0
Original line number Diff line number Diff line
@@ -34,11 +34,18 @@ static struct __initdata resource omap15xx_mpu_gpio_resources[] = { 
	},

};



static struct omap_gpio_reg_offs omap15xx_mpuio_regs = {

	.direction	= OMAP_MPUIO_IO_CNTL,

	.datain		= OMAP_MPUIO_INPUT_LATCH,

	.dataout	= OMAP_MPUIO_OUTPUT,

};



static struct __initdata omap_gpio_platform_data omap15xx_mpu_gpio_config = {

	.virtual_irq_start	= IH_MPUIO_BASE,

	.bank_type		= METHOD_MPUIO,

	.bank_width		= 16,

	.bank_stride		= 1,

	.regs			= &omap15xx_mpuio_regs,

};



static struct __initdata platform_device omap15xx_mpu_gpio = {
@@ -64,10 +71,17 @@ static struct __initdata resource omap15xx_gpio_resources[] = { 
	},

};



static struct omap_gpio_reg_offs omap15xx_gpio_regs = {

	.direction	= OMAP1510_GPIO_DIR_CONTROL,

	.datain		= OMAP1510_GPIO_DATA_INPUT,

	.dataout	= OMAP1510_GPIO_DATA_OUTPUT,

};



static struct __initdata omap_gpio_platform_data omap15xx_gpio_config = {

	.virtual_irq_start	= IH_GPIO_BASE,

	.bank_type		= METHOD_GPIO_1510,

	.bank_width		= 16,

	.regs                   = &omap15xx_gpio_regs,

};



static struct __initdata platform_device omap15xx_gpio = {

arch/arm/mach-omap1/gpio16xx.c

+19 −0
Original line number Diff line number Diff line
@@ -37,11 +37,18 @@ static struct __initdata resource omap16xx_mpu_gpio_resources[] = { 
	},

};



static struct omap_gpio_reg_offs omap16xx_mpuio_regs = {

	.direction	= OMAP_MPUIO_IO_CNTL,

	.datain		= OMAP_MPUIO_INPUT_LATCH,

	.dataout	= OMAP_MPUIO_OUTPUT,

};



static struct __initdata omap_gpio_platform_data omap16xx_mpu_gpio_config = {

	.virtual_irq_start	= IH_MPUIO_BASE,

	.bank_type		= METHOD_MPUIO,

	.bank_width		= 16,

	.bank_stride		= 1,

	.regs                   = &omap16xx_mpuio_regs,

};



static struct __initdata platform_device omap16xx_mpu_gpio = {
@@ -67,10 +74,19 @@ static struct __initdata resource omap16xx_gpio1_resources[] = { 
	},

};



static struct omap_gpio_reg_offs omap16xx_gpio_regs = {

	.direction	= OMAP1610_GPIO_DIRECTION,

	.set_dataout	= OMAP1610_GPIO_SET_DATAOUT,

	.clr_dataout	= OMAP1610_GPIO_CLEAR_DATAOUT,

	.datain		= OMAP1610_GPIO_DATAIN,

	.dataout	= OMAP1610_GPIO_DATAOUT,

};



static struct __initdata omap_gpio_platform_data omap16xx_gpio1_config = {

	.virtual_irq_start	= IH_GPIO_BASE,

	.bank_type		= METHOD_GPIO_1610,

	.bank_width		= 16,

	.regs                   = &omap16xx_gpio_regs,

};



static struct __initdata platform_device omap16xx_gpio1 = {
@@ -100,6 +116,7 @@ static struct __initdata omap_gpio_platform_data omap16xx_gpio2_config = { 
	.virtual_irq_start	= IH_GPIO_BASE + 16,

	.bank_type		= METHOD_GPIO_1610,

	.bank_width		= 16,

	.regs                   = &omap16xx_gpio_regs,

};



static struct __initdata platform_device omap16xx_gpio2 = {
@@ -129,6 +146,7 @@ static struct __initdata omap_gpio_platform_data omap16xx_gpio3_config = { 
	.virtual_irq_start	= IH_GPIO_BASE + 32,

	.bank_type		= METHOD_GPIO_1610,

	.bank_width		= 16,

	.regs                   = &omap16xx_gpio_regs,

};



static struct __initdata platform_device omap16xx_gpio3 = {
@@ -158,6 +176,7 @@ static struct __initdata omap_gpio_platform_data omap16xx_gpio4_config = { 
	.virtual_irq_start	= IH_GPIO_BASE + 48,

	.bank_type		= METHOD_GPIO_1610,

	.bank_width		= 16,

	.regs                   = &omap16xx_gpio_regs,

};



static struct __initdata platform_device omap16xx_gpio4 = {

arch/arm/mach-omap1/gpio7xx.c

+19 −0
Original line number Diff line number Diff line
@@ -39,11 +39,18 @@ static struct __initdata resource omap7xx_mpu_gpio_resources[] = { 
	},

};



static struct omap_gpio_reg_offs omap7xx_mpuio_regs = {

	.direction	= OMAP_MPUIO_IO_CNTL / 2,

	.datain		= OMAP_MPUIO_INPUT_LATCH / 2,

	.dataout	= OMAP_MPUIO_OUTPUT / 2,

};



static struct __initdata omap_gpio_platform_data omap7xx_mpu_gpio_config = {

	.virtual_irq_start	= IH_MPUIO_BASE,

	.bank_type		= METHOD_MPUIO,

	.bank_width		= 32,

	.bank_stride		= 2,

	.regs                   = &omap7xx_mpuio_regs,

};



static struct __initdata platform_device omap7xx_mpu_gpio = {
@@ -69,10 +76,17 @@ static struct __initdata resource omap7xx_gpio1_resources[] = { 
	},

};



static struct omap_gpio_reg_offs omap7xx_gpio_regs = {

	.direction	= OMAP7XX_GPIO_DIR_CONTROL,

	.datain		= OMAP7XX_GPIO_DATA_INPUT,

	.dataout	= OMAP7XX_GPIO_DATA_OUTPUT,

};



static struct __initdata omap_gpio_platform_data omap7xx_gpio1_config = {

	.virtual_irq_start	= IH_GPIO_BASE,

	.bank_type		= METHOD_GPIO_7XX,

	.bank_width		= 32,

	.regs			= &omap7xx_gpio_regs,

};



static struct __initdata platform_device omap7xx_gpio1 = {
@@ -102,6 +116,7 @@ static struct __initdata omap_gpio_platform_data omap7xx_gpio2_config = { 
	.virtual_irq_start	= IH_GPIO_BASE + 32,

	.bank_type		= METHOD_GPIO_7XX,

	.bank_width		= 32,

	.regs			= &omap7xx_gpio_regs,

};



static struct __initdata platform_device omap7xx_gpio2 = {
@@ -131,6 +146,7 @@ static struct __initdata omap_gpio_platform_data omap7xx_gpio3_config = { 
	.virtual_irq_start	= IH_GPIO_BASE + 64,

	.bank_type		= METHOD_GPIO_7XX,

	.bank_width		= 32,

	.regs			= &omap7xx_gpio_regs,

};



static struct __initdata platform_device omap7xx_gpio3 = {
@@ -160,6 +176,7 @@ static struct __initdata omap_gpio_platform_data omap7xx_gpio4_config = { 
	.virtual_irq_start	= IH_GPIO_BASE + 96,

	.bank_type		= METHOD_GPIO_7XX,

	.bank_width		= 32,

	.regs			= &omap7xx_gpio_regs,

};



static struct __initdata platform_device omap7xx_gpio4 = {
@@ -189,6 +206,7 @@ static struct __initdata omap_gpio_platform_data omap7xx_gpio5_config = { 
	.virtual_irq_start	= IH_GPIO_BASE + 128,

	.bank_type		= METHOD_GPIO_7XX,

	.bank_width		= 32,

	.regs			= &omap7xx_gpio_regs,

};



static struct __initdata platform_device omap7xx_gpio5 = {
@@ -218,6 +236,7 @@ static struct __initdata omap_gpio_platform_data omap7xx_gpio6_config = { 
	.virtual_irq_start	= IH_GPIO_BASE + 160,

	.bank_type		= METHOD_GPIO_7XX,

	.bank_width		= 32,

	.regs			= &omap7xx_gpio_regs,

};



static struct __initdata platform_device omap7xx_gpio6 = {

arch/arm/mach-omap2/gpio.c

+16 −0
Original line number Diff line number Diff line
@@ -61,13 +61,29 @@ static int omap2_gpio_dev_init(struct omap_hwmod *oh, void *unused) 
	pdata->dbck_flag = dev_attr->dbck_flag;

	pdata->virtual_irq_start = IH_GPIO_BASE + 32 * (id - 1);



	pdata->regs = kzalloc(sizeof(struct omap_gpio_reg_offs), GFP_KERNEL);

	if (!pdata) {

		pr_err("gpio%d: Memory allocation failed\n", id);

		return -ENOMEM;

	}



	switch (oh->class->rev) {

	case 0:

	case 1:

		pdata->bank_type = METHOD_GPIO_24XX;

		pdata->regs->direction = OMAP24XX_GPIO_OE;

		pdata->regs->datain = OMAP24XX_GPIO_DATAIN;

		pdata->regs->dataout = OMAP24XX_GPIO_DATAOUT;

		pdata->regs->set_dataout = OMAP24XX_GPIO_SETDATAOUT;

		pdata->regs->clr_dataout = OMAP24XX_GPIO_CLEARDATAOUT;

		break;

	case 2:

		pdata->bank_type = METHOD_GPIO_44XX;

		pdata->regs->direction = OMAP4_GPIO_OE;

		pdata->regs->datain = OMAP4_GPIO_DATAIN;

		pdata->regs->dataout = OMAP4_GPIO_DATAOUT;

		pdata->regs->set_dataout = OMAP4_GPIO_SETDATAOUT;

		pdata->regs->clr_dataout = OMAP4_GPIO_CLEARDATAOUT;

		break;

	default:

		WARN(1, "Invalid gpio bank_type\n");

arch/arm/plat-omap/include/plat/gpio.h

+10 −0
Original line number Diff line number Diff line
@@ -174,12 +174,22 @@ struct omap_gpio_dev_attr { 
	bool dbck_flag;		/* dbck required or not - True for OMAP3&4 */

};



struct omap_gpio_reg_offs {

	u16 direction;

	u16 datain;

	u16 dataout;

	u16 set_dataout;

	u16 clr_dataout;

};



struct omap_gpio_platform_data {

	u16 virtual_irq_start;

	int bank_type;

	int bank_width;		/* GPIO bank width */

	int bank_stride;	/* Only needed for omap1 MPUIO */

	bool dbck_flag;		/* dbck required or not - True for OMAP3&4 */



	struct omap_gpio_reg_offs *regs;

};



/* TODO: Analyze removing gpio_bank_count usage from driver code */