Commit 93a22f8b authored by David Brownell's avatar David Brownell Committed by Linus Torvalds
Browse files

omap drivers: switch to standard GPIO calls 



This updates most of the OMAP drivers which are in mainline to switch to
using the cross-platform GPIO calls instead of the older OMAP-specific
ones.

This is all fairly brainless/obvious stuff.  Probably the most interesting
bit is to observe that the omap-keypad code seems to now have a portable
core that could work with non-OMAP matrix keypads.  (That would improve
with hardware IRQ debouncing enabled, of course...)

Signed-off-by: default avatarDavid Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: default avatarTony Lindgren <tony@atomide.com>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: Antonino Daplas <adaplas@gmail.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 0f6d504e

drivers/input/keyboard/omap-keypad.c

+12 −15
Original line number Diff line number Diff line
@@ -72,12 +72,9 @@ static unsigned int *col_gpios; 
static void set_col_gpio_val(struct omap_kp *omap_kp, u8 value)

{

	int col;

	for (col = 0; col < omap_kp->cols; col++) {

		if (value & (1 << col))

			omap_set_gpio_dataout(col_gpios[col], 1);

		else

			omap_set_gpio_dataout(col_gpios[col], 0);

	}



	for (col = 0; col < omap_kp->cols; col++)

		gpio_set_value(col_gpios[col], value & (1 << col));

}



static u8 get_row_gpio_val(struct omap_kp *omap_kp)
@@ -86,7 +83,7 @@ static u8 get_row_gpio_val(struct omap_kp *omap_kp) 
	u8 value = 0;



	for (row = 0; row < omap_kp->rows; row++) {

		if (omap_get_gpio_datain(row_gpios[row]))

		if (gpio_get_value(row_gpios[row]))

			value |= (1 << row);

	}

	return value;
@@ -333,23 +330,23 @@ static int __init omap_kp_probe(struct platform_device *pdev) 
	if (cpu_is_omap24xx()) {

		/* Cols: outputs */

		for (col_idx = 0; col_idx < omap_kp->cols; col_idx++) {

			if (omap_request_gpio(col_gpios[col_idx]) < 0) {

			if (gpio_request(col_gpios[col_idx], "omap_kp_col") < 0) {

				printk(KERN_ERR "Failed to request"

				       "GPIO%d for keypad\n",

				       col_gpios[col_idx]);

				goto err1;

			}

			omap_set_gpio_direction(col_gpios[col_idx], 0);

			gpio_direction_output(col_gpios[col_idx], 0);

		}

		/* Rows: inputs */

		for (row_idx = 0; row_idx < omap_kp->rows; row_idx++) {

			if (omap_request_gpio(row_gpios[row_idx]) < 0) {

			if (gpio_request(row_gpios[row_idx], "omap_kp_row") < 0) {

				printk(KERN_ERR "Failed to request"

				       "GPIO%d for keypad\n",

				       row_gpios[row_idx]);

				goto err2;

			}

			omap_set_gpio_direction(row_gpios[row_idx], 1);

			gpio_direction_input(row_gpios[row_idx]);

		}

	} else {

		col_idx = 0;
@@ -418,10 +415,10 @@ err3: 
	device_remove_file(&pdev->dev, &dev_attr_enable);

err2:

	for (i = row_idx - 1; i >=0; i--)

		omap_free_gpio(row_gpios[i]);

		gpio_free(row_gpios[i]);

err1:

	for (i = col_idx - 1; i >=0; i--)

		omap_free_gpio(col_gpios[i]);

		gpio_free(col_gpios[i]);



	kfree(omap_kp);

	input_free_device(input_dev);
@@ -438,9 +435,9 @@ static int omap_kp_remove(struct platform_device *pdev) 
	if (cpu_is_omap24xx()) {

		int i;

		for (i = 0; i < omap_kp->cols; i++)

			omap_free_gpio(col_gpios[i]);

			gpio_free(col_gpios[i]);

		for (i = 0; i < omap_kp->rows; i++) {

			omap_free_gpio(row_gpios[i]);

			gpio_free(row_gpios[i]);

			free_irq(OMAP_GPIO_IRQ(row_gpios[i]), 0);

		}

	} else {

drivers/mtd/nand/ams-delta.c

+2 −2
Original line number Diff line number Diff line
@@ -145,7 +145,7 @@ static void ams_delta_hwcontrol(struct mtd_info *mtd, int cmd, 


static int ams_delta_nand_ready(struct mtd_info *mtd)

{

	return omap_get_gpio_datain(AMS_DELTA_GPIO_PIN_NAND_RB);

	return gpio_get_value(AMS_DELTA_GPIO_PIN_NAND_RB);

}



/*
@@ -185,7 +185,7 @@ static int __init ams_delta_init(void) 
	this->read_buf = ams_delta_read_buf;

	this->verify_buf = ams_delta_verify_buf;

	this->cmd_ctrl = ams_delta_hwcontrol;

	if (!omap_request_gpio(AMS_DELTA_GPIO_PIN_NAND_RB)) {

	if (gpio_request(AMS_DELTA_GPIO_PIN_NAND_RB, "nand_rdy") == 0) {

		this->dev_ready = ams_delta_nand_ready;

	} else {

		this->dev_ready = NULL;

drivers/video/omap/lcd_inn1610.c

+11 −11
Original line number Diff line number Diff line
@@ -32,43 +32,43 @@ static int innovator1610_panel_init(struct lcd_panel *panel, 
{

	int r = 0;



	if (omap_request_gpio(14)) {

	if (gpio_request(14, "lcd_en0")) {

		pr_err(MODULE_NAME ": can't request GPIO 14\n");

		r = -1;

		goto exit;

	}

	if (omap_request_gpio(15)) {

	if (gpio_request(15, "lcd_en1")) {

		pr_err(MODULE_NAME ": can't request GPIO 15\n");

		omap_free_gpio(14);

		gpio_free(14);

		r = -1;

		goto exit;

	}

	/* configure GPIO(14, 15) as outputs */

	omap_set_gpio_direction(14, 0);

	omap_set_gpio_direction(15, 0);

	gpio_direction_output(14, 0);

	gpio_direction_output(15, 0);

exit:

	return r;

}



static void innovator1610_panel_cleanup(struct lcd_panel *panel)

{

	omap_free_gpio(15);

	omap_free_gpio(14);

	gpio_free(15);

	gpio_free(14);

}



static int innovator1610_panel_enable(struct lcd_panel *panel)

{

	/* set GPIO14 and GPIO15 high */

	omap_set_gpio_dataout(14, 1);

	omap_set_gpio_dataout(15, 1);

	gpio_set_value(14, 1);

	gpio_set_value(15, 1);

	return 0;

}



static void innovator1610_panel_disable(struct lcd_panel *panel)

{

	/* set GPIO13, GPIO14 and GPIO15 low */

	omap_set_gpio_dataout(14, 0);

	omap_set_gpio_dataout(15, 0);

	gpio_set_value(14, 0);

	gpio_set_value(15, 0);

}



static unsigned long innovator1610_panel_get_caps(struct lcd_panel *panel)

drivers/video/omap/lcd_osk.c

+4 −6
Original line number Diff line number Diff line
@@ -29,6 +29,7 @@ 


static int osk_panel_init(struct lcd_panel *panel, struct omapfb_device *fbdev)

{

	/* gpio2 was allocated in board init */

	return 0;

}
@@ -47,11 +48,8 @@ static int osk_panel_enable(struct lcd_panel *panel) 
	/* Set PWL level */

	omap_writeb(0xFF, OMAP_PWL_ENABLE);



	/* configure GPIO2 as output */

	omap_set_gpio_direction(2, 0);



	/* set GPIO2 high */

	omap_set_gpio_dataout(2, 1);

	/* set GPIO2 high (lcd power enabled) */

	gpio_set_value(2, 1);



	return 0;

}
@@ -65,7 +63,7 @@ static void osk_panel_disable(struct lcd_panel *panel) 
	omap_writeb(0x00, OMAP_PWL_CLK_ENABLE);



	/* set GPIO2 low */

	omap_set_gpio_dataout(2, 0);

	gpio_set_value(2, 0);

}



static unsigned long osk_panel_get_caps(struct lcd_panel *panel)

drivers/video/omap/lcd_sx1.c

+46 −53
Original line number Diff line number Diff line
@@ -81,21 +81,21 @@ static void epson_sendbyte(int flag, unsigned char byte) 
	int i, shifter = 0x80;



	if (!flag)

		omap_set_gpio_dataout(_A_LCD_SSC_A0, 0);

		gpio_set_value(_A_LCD_SSC_A0, 0);

	mdelay(2);

	omap_set_gpio_dataout(A_LCD_SSC_RD, 1);

	gpio_set_value(A_LCD_SSC_RD, 1);



	omap_set_gpio_dataout(A_LCD_SSC_SD, flag);

	gpio_set_value(A_LCD_SSC_SD, flag);



	OMAP_MCBSP_WRITE(OMAP1510_MCBSP3_BASE, PCR0, 0x2200);

	OMAP_MCBSP_WRITE(OMAP1510_MCBSP3_BASE, PCR0, 0x2202);

	for (i = 0; i < 8; i++) {

		OMAP_MCBSP_WRITE(OMAP1510_MCBSP3_BASE, PCR0, 0x2200);

		omap_set_gpio_dataout(A_LCD_SSC_SD, shifter & byte);

		gpio_set_value(A_LCD_SSC_SD, shifter & byte);

		OMAP_MCBSP_WRITE(OMAP1510_MCBSP3_BASE, PCR0, 0x2202);

		shifter >>= 1;

	}

	omap_set_gpio_dataout(_A_LCD_SSC_A0, 1);

	gpio_set_value(_A_LCD_SSC_A0, 1);

}



static void init_system(void)
@@ -107,25 +107,18 @@ static void init_system(void) 
static void setup_GPIO(void)

{

	/* new wave */

	omap_request_gpio(A_LCD_SSC_RD);

	omap_request_gpio(A_LCD_SSC_SD);

	omap_request_gpio(_A_LCD_RESET);

	omap_request_gpio(_A_LCD_SSC_CS);

	omap_request_gpio(_A_LCD_SSC_A0);



	/* set all GPIOs to output */

	omap_set_gpio_direction(A_LCD_SSC_RD, 0);

	omap_set_gpio_direction(A_LCD_SSC_SD, 0);

	omap_set_gpio_direction(_A_LCD_RESET, 0);

	omap_set_gpio_direction(_A_LCD_SSC_CS, 0);

	omap_set_gpio_direction(_A_LCD_SSC_A0, 0);



	/* set GPIO data */

	omap_set_gpio_dataout(A_LCD_SSC_RD, 1);

	omap_set_gpio_dataout(A_LCD_SSC_SD, 0);

	omap_set_gpio_dataout(_A_LCD_RESET, 0);

	omap_set_gpio_dataout(_A_LCD_SSC_CS, 1);

	omap_set_gpio_dataout(_A_LCD_SSC_A0, 1);

	gpio_request(A_LCD_SSC_RD, "lcd_ssc_rd");

	gpio_request(A_LCD_SSC_SD, "lcd_ssc_sd");

	gpio_request(_A_LCD_RESET, "lcd_reset");

	gpio_request(_A_LCD_SSC_CS, "lcd_ssc_cs");

	gpio_request(_A_LCD_SSC_A0, "lcd_ssc_a0");



	/* set GPIOs to output, with initial data */

	gpio_direction_output(A_LCD_SSC_RD, 1);

	gpio_direction_output(A_LCD_SSC_SD, 0);

	gpio_direction_output(_A_LCD_RESET, 0);

	gpio_direction_output(_A_LCD_SSC_CS, 1);

	gpio_direction_output(_A_LCD_SSC_A0, 1);

}



static void display_init(void)
@@ -139,61 +132,61 @@ static void display_init(void) 
	mdelay(2);



	/* reset LCD */

	omap_set_gpio_dataout(A_LCD_SSC_SD, 1);

	gpio_set_value(A_LCD_SSC_SD, 1);

	epson_sendbyte(0, 0x25);



	omap_set_gpio_dataout(_A_LCD_RESET, 0);

	gpio_set_value(_A_LCD_RESET, 0);

	mdelay(10);

	omap_set_gpio_dataout(_A_LCD_RESET, 1);

	gpio_set_value(_A_LCD_RESET, 1);



	omap_set_gpio_dataout(_A_LCD_SSC_CS, 1);

	gpio_set_value(_A_LCD_SSC_CS, 1);

	mdelay(2);

	omap_set_gpio_dataout(_A_LCD_SSC_CS, 0);

	gpio_set_value(_A_LCD_SSC_CS, 0);



	/* init LCD, phase 1 */

	epson_sendbyte(0, 0xCA);

	for (i = 0; i < 10; i++)

		epson_sendbyte(1, INIT_1[i]);

	omap_set_gpio_dataout(_A_LCD_SSC_CS, 1);

	omap_set_gpio_dataout(_A_LCD_SSC_CS, 0);

	gpio_set_value(_A_LCD_SSC_CS, 1);

	gpio_set_value(_A_LCD_SSC_CS, 0);



	/* init LCD phase 2 */

	epson_sendbyte(0, 0xCB);

	for (i = 0; i < 125; i++)

		epson_sendbyte(1, INIT_2[i]);

	omap_set_gpio_dataout(_A_LCD_SSC_CS, 1);

	omap_set_gpio_dataout(_A_LCD_SSC_CS, 0);

	gpio_set_value(_A_LCD_SSC_CS, 1);

	gpio_set_value(_A_LCD_SSC_CS, 0);



	/* init LCD phase 2a */

	epson_sendbyte(0, 0xCC);

	for (i = 0; i < 14; i++)

		epson_sendbyte(1, INIT_3[i]);

	omap_set_gpio_dataout(_A_LCD_SSC_CS, 1);

	omap_set_gpio_dataout(_A_LCD_SSC_CS, 0);

	gpio_set_value(_A_LCD_SSC_CS, 1);

	gpio_set_value(_A_LCD_SSC_CS, 0);



	/* init LCD phase 3 */

	epson_sendbyte(0, 0xBC);

	epson_sendbyte(1, 0x08);

	omap_set_gpio_dataout(_A_LCD_SSC_CS, 1);

	omap_set_gpio_dataout(_A_LCD_SSC_CS, 0);

	gpio_set_value(_A_LCD_SSC_CS, 1);

	gpio_set_value(_A_LCD_SSC_CS, 0);



	/* init LCD phase 4 */

	epson_sendbyte(0, 0x07);

	epson_sendbyte(1, 0x05);

	omap_set_gpio_dataout(_A_LCD_SSC_CS, 1);

	omap_set_gpio_dataout(_A_LCD_SSC_CS, 0);

	gpio_set_value(_A_LCD_SSC_CS, 1);

	gpio_set_value(_A_LCD_SSC_CS, 0);



	/* init LCD phase 5 */

	epson_sendbyte(0, 0x94);

	omap_set_gpio_dataout(_A_LCD_SSC_CS, 1);

	omap_set_gpio_dataout(_A_LCD_SSC_CS, 0);

	gpio_set_value(_A_LCD_SSC_CS, 1);

	gpio_set_value(_A_LCD_SSC_CS, 0);



	/* init LCD phase 6 */

	epson_sendbyte(0, 0xC6);

	epson_sendbyte(1, 0x80);

	omap_set_gpio_dataout(_A_LCD_SSC_CS, 1);

	gpio_set_value(_A_LCD_SSC_CS, 1);

	mdelay(100); /* used to be 1000 */

	omap_set_gpio_dataout(_A_LCD_SSC_CS, 0);

	gpio_set_value(_A_LCD_SSC_CS, 0);



	/* init LCD phase 7 */

	epson_sendbyte(0, 0x16);
@@ -201,8 +194,8 @@ static void display_init(void) 
	epson_sendbyte(1, 0x00);

	epson_sendbyte(1, 0xB1);

	epson_sendbyte(1, 0x00);

	omap_set_gpio_dataout(_A_LCD_SSC_CS, 1);

	omap_set_gpio_dataout(_A_LCD_SSC_CS, 0);

	gpio_set_value(_A_LCD_SSC_CS, 1);

	gpio_set_value(_A_LCD_SSC_CS, 0);



	/* init LCD phase 8 */

	epson_sendbyte(0, 0x76);
@@ -210,12 +203,12 @@ static void display_init(void) 
	epson_sendbyte(1, 0x00);

	epson_sendbyte(1, 0xDB);

	epson_sendbyte(1, 0x00);

	omap_set_gpio_dataout(_A_LCD_SSC_CS, 1);

	omap_set_gpio_dataout(_A_LCD_SSC_CS, 0);

	gpio_set_value(_A_LCD_SSC_CS, 1);

	gpio_set_value(_A_LCD_SSC_CS, 0);



	/* init LCD phase 9 */

	epson_sendbyte(0, 0xAF);

	omap_set_gpio_dataout(_A_LCD_SSC_CS, 1);

	gpio_set_value(_A_LCD_SSC_CS, 1);

}



static int sx1_panel_init(struct lcd_panel *panel, struct omapfb_device *fbdev)
@@ -231,18 +224,18 @@ static void sx1_panel_disable(struct lcd_panel *panel) 
{

	printk(KERN_INFO "SX1: LCD panel disable\n");

	sx1_setmmipower(0);

	omap_set_gpio_dataout(_A_LCD_SSC_CS, 1);

	gpio_set_value(_A_LCD_SSC_CS, 1);



	epson_sendbyte(0, 0x25);

	omap_set_gpio_dataout(_A_LCD_SSC_CS, 0);

	gpio_set_value(_A_LCD_SSC_CS, 0);



	epson_sendbyte(0, 0xAE);

	omap_set_gpio_dataout(_A_LCD_SSC_CS, 1);

	gpio_set_value(_A_LCD_SSC_CS, 1);

	mdelay(100);

	omap_set_gpio_dataout(_A_LCD_SSC_CS, 0);

	gpio_set_value(_A_LCD_SSC_CS, 0);



	epson_sendbyte(0, 0x95);

	omap_set_gpio_dataout(_A_LCD_SSC_CS, 1);

	gpio_set_value(_A_LCD_SSC_CS, 1);

}



static int sx1_panel_enable(struct lcd_panel *panel)

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