ARM: OMAP2+: Remove legacy gpio code

OMAP2+ GPOs are initialized now using device tree, so legacy gpio
initialization code can be removed.
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/mach-omap2/Makefile

@@ -7,7 +7,7 @@ ccflags-y := -I$(srctree)/$(src)/include \
 
 # Common support
 obj-y := id.o io.o control.o devices.o fb.o timer.o pm.o \
-	 common.o gpio.o dma.o wd_timer.o display.o i2c.o hdq1w.o omap_hwmod.o \
+	 common.o dma.o wd_timer.o display.o i2c.o hdq1w.o omap_hwmod.o \
 	 omap_device.o omap-headsmp.o sram.o drm.o
 
 hwmod-common				= omap_hwmod.o omap_hwmod_reset.o \

arch/arm/mach-omap2/gpio.c

-/*
- * OMAP2+ specific gpio initialization
- *
- * Copyright (C) 2010 Texas Instruments Incorporated - http://www.ti.com/
- *
- * Author:
- *	Charulatha V <charu@ti.com>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation version 2.
- *
- * This program is distributed "as is" WITHOUT ANY WARRANTY of any
- * kind, whether express or implied; without even the implied warranty
- * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-#include <linux/gpio.h>
-#include <linux/err.h>
-#include <linux/slab.h>
-#include <linux/interrupt.h>
-#include <linux/of.h>
-#include <linux/platform_data/gpio-omap.h>
-
-#include "soc.h"
-#include "omap_hwmod.h"
-#include "omap_device.h"
-#include "omap-pm.h"
-
-#include "powerdomain.h"
-
-static int __init omap2_gpio_dev_init(struct omap_hwmod *oh, void *unused)
-{
-	struct platform_device *pdev;
-	struct omap_gpio_platform_data *pdata;
-	struct omap_gpio_dev_attr *dev_attr;
-	char *name = "omap_gpio";
-	int id;
-	struct powerdomain *pwrdm;
-
-	/*
-	 * extract the device id from name field available in the
-	 * hwmod database and use the same for constructing ids for
-	 * gpio devices.
-	 * CAUTION: Make sure the name in the hwmod database does
-	 * not change. If changed, make corresponding change here
-	 * or make use of static variable mechanism to handle this.
-	 */
-	sscanf(oh->name, "gpio%d", &id);
-
-	pdata = kzalloc(sizeof(struct omap_gpio_platform_data), GFP_KERNEL);
-	if (!pdata) {
-		pr_err("gpio%d: Memory allocation failed\n", id);
-		return -ENOMEM;
-	}
-
-	dev_attr = (struct omap_gpio_dev_attr *)oh->dev_attr;
-	pdata->bank_width = dev_attr->bank_width;
-	pdata->dbck_flag = dev_attr->dbck_flag;
-	pdata->get_context_loss_count = omap_pm_get_dev_context_loss_count;
-	pdata->regs = kzalloc(sizeof(struct omap_gpio_reg_offs), GFP_KERNEL);
-	if (!pdata->regs) {
-		pr_err("gpio%d: Memory allocation failed\n", id);
-		kfree(pdata);
-		return -ENOMEM;
-	}
-
-	switch (oh->class->rev) {
-	case 0:
-		if (id == 1)
-			/* non-wakeup GPIO pins for OMAP2 Bank1 */
-			pdata->non_wakeup_gpios = 0xe203ffc0;
-		else if (id == 2)
-			/* non-wakeup GPIO pins for OMAP2 Bank2 */
-			pdata->non_wakeup_gpios = 0x08700040;
-		/* fall through */
-
-	case 1:
-		pdata->regs->revision = OMAP24XX_GPIO_REVISION;
-		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;
-		pdata->regs->irqstatus = OMAP24XX_GPIO_IRQSTATUS1;
-		pdata->regs->irqstatus2 = OMAP24XX_GPIO_IRQSTATUS2;
-		pdata->regs->irqenable = OMAP24XX_GPIO_IRQENABLE1;
-		pdata->regs->irqenable2 = OMAP24XX_GPIO_IRQENABLE2;
-		pdata->regs->set_irqenable = OMAP24XX_GPIO_SETIRQENABLE1;
-		pdata->regs->clr_irqenable = OMAP24XX_GPIO_CLEARIRQENABLE1;
-		pdata->regs->debounce = OMAP24XX_GPIO_DEBOUNCE_VAL;
-		pdata->regs->debounce_en = OMAP24XX_GPIO_DEBOUNCE_EN;
-		pdata->regs->ctrl = OMAP24XX_GPIO_CTRL;
-		pdata->regs->wkup_en = OMAP24XX_GPIO_WAKE_EN;
-		pdata->regs->leveldetect0 = OMAP24XX_GPIO_LEVELDETECT0;
-		pdata->regs->leveldetect1 = OMAP24XX_GPIO_LEVELDETECT1;
-		pdata->regs->risingdetect = OMAP24XX_GPIO_RISINGDETECT;
-		pdata->regs->fallingdetect = OMAP24XX_GPIO_FALLINGDETECT;
-		break;
-	case 2:
-		pdata->regs->revision = OMAP4_GPIO_REVISION;
-		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;
-		pdata->regs->irqstatus_raw0 = OMAP4_GPIO_IRQSTATUSRAW0;
-		pdata->regs->irqstatus_raw1 = OMAP4_GPIO_IRQSTATUSRAW1;
-		pdata->regs->irqstatus = OMAP4_GPIO_IRQSTATUS0;
-		pdata->regs->irqstatus2 = OMAP4_GPIO_IRQSTATUS1;
-		pdata->regs->irqenable = OMAP4_GPIO_IRQSTATUSSET0;
-		pdata->regs->irqenable2 = OMAP4_GPIO_IRQSTATUSSET1;
-		pdata->regs->set_irqenable = OMAP4_GPIO_IRQSTATUSSET0;
-		pdata->regs->clr_irqenable = OMAP4_GPIO_IRQSTATUSCLR0;
-		pdata->regs->debounce = OMAP4_GPIO_DEBOUNCINGTIME;
-		pdata->regs->debounce_en = OMAP4_GPIO_DEBOUNCENABLE;
-		pdata->regs->ctrl = OMAP4_GPIO_CTRL;
-		pdata->regs->wkup_en = OMAP4_GPIO_IRQWAKEN0;
-		pdata->regs->leveldetect0 = OMAP4_GPIO_LEVELDETECT0;
-		pdata->regs->leveldetect1 = OMAP4_GPIO_LEVELDETECT1;
-		pdata->regs->risingdetect = OMAP4_GPIO_RISINGDETECT;
-		pdata->regs->fallingdetect = OMAP4_GPIO_FALLINGDETECT;
-		break;
-	default:
-		WARN(1, "Invalid gpio bank_type\n");
-		kfree(pdata->regs);
-		kfree(pdata);
-		return -EINVAL;
-	}
-
-	pwrdm = omap_hwmod_get_pwrdm(oh);
-	pdata->loses_context = pwrdm_can_ever_lose_context(pwrdm);
-
-	pdev = omap_device_build(name, id - 1, oh, pdata, sizeof(*pdata));
-	kfree(pdata);
-
-	if (IS_ERR(pdev)) {
-		WARN(1, "Can't build omap_device for %s:%s.\n",
-					name, oh->name);
-		return PTR_ERR(pdev);
-	}
-
-	return 0;
-}
-
-/*
- * gpio_init needs to be done before
- * machine_init functions access gpio APIs.
- * Hence gpio_init is a omap_postcore_initcall.
- */
-static int __init omap2_gpio_init(void)
-{
-	/* If dtb is there, the devices will be created dynamically */
-	if (of_have_populated_dt())
-		return -ENODEV;
-
-	return omap_hwmod_for_each_by_class("gpio", omap2_gpio_dev_init, NULL);
-}
-omap_postcore_initcall(omap2_gpio_init);

arch/arm/mach-omap2/omap_hwmod_common_data.h

@@ -121,10 +121,6 @@ extern struct omap_hwmod_irq_info omap2_uart3_mpu_irqs[];
 extern struct omap_hwmod_irq_info omap2_dispc_irqs[];
 extern struct omap_hwmod_irq_info omap2_i2c1_mpu_irqs[];
 extern struct omap_hwmod_irq_info omap2_i2c2_mpu_irqs[];
-extern struct omap_hwmod_irq_info omap2_gpio1_irqs[];
-extern struct omap_hwmod_irq_info omap2_gpio2_irqs[];
-extern struct omap_hwmod_irq_info omap2_gpio3_irqs[];
-extern struct omap_hwmod_irq_info omap2_gpio4_irqs[];
 extern struct omap_hwmod_irq_info omap2_dma_system_irqs[];
 extern struct omap_hwmod_irq_info omap2_mcspi1_mpu_irqs[];
 extern struct omap_hwmod_irq_info omap2_mcspi2_mpu_irqs[];