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Diffstat (limited to 'arch/arm/mach-omap2/gpio.c')
-rw-r--r--arch/arm/mach-omap2/gpio.c108
1 files changed, 82 insertions, 26 deletions
diff --git a/arch/arm/mach-omap2/gpio.c b/arch/arm/mach-omap2/gpio.c
index 413de18c1d2..7a577145b68 100644
--- a/arch/arm/mach-omap2/gpio.c
+++ b/arch/arm/mach-omap2/gpio.c
@@ -20,25 +20,24 @@
#include <linux/err.h>
#include <linux/slab.h>
#include <linux/interrupt.h>
+#include <linux/of.h>
+#include <linux/platform_data/gpio-omap.h>
-#include <plat/omap_hwmod.h>
-#include <plat/omap_device.h>
+#include "soc.h"
+#include "omap_hwmod.h"
+#include "omap_device.h"
+#include "omap-pm.h"
-static struct omap_device_pm_latency omap_gpio_latency[] = {
- [0] = {
- .deactivate_func = omap_device_idle_hwmods,
- .activate_func = omap_device_enable_hwmods,
- .flags = OMAP_DEVICE_LATENCY_AUTO_ADJUST,
- },
-};
+#include "powerdomain.h"
-static int omap2_gpio_dev_init(struct omap_hwmod *oh, void *unused)
+static int __init omap2_gpio_dev_init(struct omap_hwmod *oh, void *unused)
{
- struct omap_device *od;
+ 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
@@ -59,46 +58,103 @@ static int omap2_gpio_dev_init(struct omap_hwmod *oh, void *unused)
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->virtual_irq_start = IH_GPIO_BASE + 32 * (id - 1);
+ 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->bank_type = METHOD_GPIO_24XX;
+ 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->bank_type = METHOD_GPIO_44XX;
+ 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;
}
- od = omap_device_build(name, id - 1, oh, pdata,
- sizeof(*pdata), omap_gpio_latency,
- ARRAY_SIZE(omap_gpio_latency),
- false);
+ 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(od)) {
- WARN(1, "Cant build omap_device for %s:%s.\n",
+ if (IS_ERR(pdev)) {
+ WARN(1, "Can't build omap_device for %s:%s.\n",
name, oh->name);
- return PTR_ERR(od);
+ return PTR_ERR(pdev);
}
- gpio_bank_count++;
return 0;
}
/*
* gpio_init needs to be done before
* machine_init functions access gpio APIs.
- * Hence gpio_init is a postcore_initcall.
+ * Hence gpio_init is a omap_postcore_initcall.
*/
static int __init omap2_gpio_init(void)
{
- return omap_hwmod_for_each_by_class("gpio", omap2_gpio_dev_init,
- NULL);
+ /* 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);
}
-postcore_initcall(omap2_gpio_init);
+omap_postcore_initcall(omap2_gpio_init);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-10 01:16:04 +0000