]> pilppa.com Git - linux-2.6-omap-h63xx.git/commitdiff
remove twl4030-pwrirq.c
authorDavid Brownell <dbrownell@users.sourceforge.net>
Fri, 10 Oct 2008 21:21:53 +0000 (14:21 -0700)
committerTony Lindgren <tony@atomide.com>
Thu, 16 Oct 2008 20:04:36 +0000 (13:04 -0700)
Replace twl4030-pwrirq with the more capable generic TWL SIH
support.

"More capable" includes standard support for IRQ trigger modes;
so make the RTC and USB transceiver drivers use genirq for that.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Tony Lindgren <tony@atomide.com>
drivers/i2c/chips/Makefile
drivers/i2c/chips/twl4030-pwrirq.c [deleted file]
drivers/i2c/chips/twl4030-usb.c
drivers/mfd/twl4030-irq.c
drivers/rtc/rtc-twl4030.c

index ba41a574576b41d46bf5b100702bab7ad954b36f..2b6287b91e7e6c4f502bedd3a73328975c5a681a 100644 (file)
@@ -24,7 +24,7 @@ obj-$(CONFIG_GPIOEXPANDER_OMAP)       += gpio_expander_omap.o
 obj-$(CONFIG_MENELAUS)         += menelaus.o
 obj-$(CONFIG_SENSORS_TSL2550)  += tsl2550.o
 obj-$(CONFIG_SENSORS_TSL2563)  += tsl2563.o
-obj-$(CONFIG_TWL4030_CORE)     += twl4030-pwrirq.o twl4030-power.o
+obj-$(CONFIG_TWL4030_CORE)     += twl4030-power.o
 obj-$(CONFIG_TWL4030_USB)      += twl4030-usb.o
 obj-$(CONFIG_TWL4030_POWEROFF) += twl4030-poweroff.o
 obj-$(CONFIG_TWL4030_PWRBUTTON)        += twl4030-pwrbutton.o
diff --git a/drivers/i2c/chips/twl4030-pwrirq.c b/drivers/i2c/chips/twl4030-pwrirq.c
deleted file mode 100644 (file)
index ce66dd4..0000000
+++ /dev/null
@@ -1,191 +0,0 @@
-/*
- * twl4030-pwrirq.c - handle power interrupts from TWL3040
- *
- * Copyright (C) 2008 Nokia Corporation
- *
- * Written by Peter De Schrijver <peter.de-schrijver@nokia.com>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file "COPYING" in the main directory of this
- * archive for more details.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- */
-
-#include <linux/kernel_stat.h>
-#include <linux/module.h>
-#include <linux/interrupt.h>
-#include <linux/irq.h>
-#include <linux/i2c.h>
-#include <linux/random.h>
-#include <linux/kthread.h>
-#include <linux/i2c/twl4030.h>
-
-
-static DEFINE_SPINLOCK(pwr_lock);
-static u8 twl4030_pwrirq_mask;
-
-static struct task_struct *twl4030_pwrirq_unmask_thread;
-
-static void twl4030_pwrirq_ack(unsigned int irq) {}
-
-static void twl4030_pwrirq_disableint(unsigned int irq)
-{
-       unsigned long flags;
-
-       spin_lock_irqsave(&pwr_lock, flags);
-       twl4030_pwrirq_mask |= 1 << (irq - TWL4030_PWR_IRQ_BASE);
-       if (twl4030_pwrirq_unmask_thread
-                       && twl4030_pwrirq_unmask_thread->state != TASK_RUNNING)
-               wake_up_process(twl4030_pwrirq_unmask_thread);
-       spin_unlock_irqrestore(&pwr_lock, flags);
-}
-
-static void twl4030_pwrirq_enableint(unsigned int irq)
-{
-       unsigned long flags;
-
-       spin_lock_irqsave(&pwr_lock, flags);
-       twl4030_pwrirq_mask &= ~(1 << (irq - TWL4030_PWR_IRQ_BASE));
-       if (twl4030_pwrirq_unmask_thread
-                       && twl4030_pwrirq_unmask_thread->state != TASK_RUNNING)
-               wake_up_process(twl4030_pwrirq_unmask_thread);
-       spin_unlock_irqrestore(&pwr_lock, flags);
-}
-
-static struct irq_chip twl4030_pwrirq_chip = {
-       .name   = "twl4030-pwr",
-       .ack    = twl4030_pwrirq_ack,
-       .mask   = twl4030_pwrirq_disableint,
-       .unmask = twl4030_pwrirq_enableint,
-};
-
-static void do_twl4030_pwrirq(unsigned int irq, irq_desc_t *desc)
-{
-       const unsigned int cpu = smp_processor_id();
-
-       desc->status |= IRQ_LEVEL;
-
-       desc->chip->ack(irq);
-
-       if (!desc->depth) {
-               int ret;
-               int module_irq;
-               u8 pwr_isr;
-
-               kstat_cpu(cpu).irqs[irq]++;
-
-               local_irq_enable();
-               ret = twl4030_i2c_read_u8(TWL4030_MODULE_INT, &pwr_isr,
-                                         TWL4030_INT_PWR_ISR1);
-               local_irq_disable();
-               if (ret) {
-                       printk(KERN_WARNING
-                               "I2C error %d while reading TWL4030"
-                               "INT PWR_ISR1 register\n", ret);
-                       return;
-               }
-
-               for (module_irq = TWL4030_PWR_IRQ_BASE; pwr_isr != 0;
-                       module_irq++, pwr_isr >>= 1) {
-                       if (pwr_isr & 1)
-                               generic_handle_irq(module_irq);
-               }
-
-               desc->chip->unmask(irq);
-       }
-}
-
-static int twl4030_pwrirq_thread(void *data)
-{
-       current->flags |= PF_NOFREEZE;
-
-       while (!kthread_should_stop()) {
-               u8 local_mask;
-
-               spin_lock_irq(&pwr_lock);
-               local_mask = twl4030_pwrirq_mask;
-               spin_unlock_irq(&pwr_lock);
-
-               twl4030_i2c_write_u8(TWL4030_MODULE_INT, local_mask,
-                                    TWL4030_INT_PWR_IMR1);
-
-               spin_lock_irq(&pwr_lock);
-               if (local_mask == twl4030_pwrirq_mask)
-                       set_current_state(TASK_INTERRUPTIBLE);
-               spin_unlock_irq(&pwr_lock);
-
-               schedule();
-       }
-       set_current_state(TASK_RUNNING);
-       return 0;
-}
-
-static int __init twl4030_pwrirq_init(void)
-{
-       int i, err;
-
-       twl4030_pwrirq_mask = 0xff;
-
-       err = twl4030_i2c_write_u8(TWL4030_MODULE_INT, twl4030_pwrirq_mask,
-                                       TWL4030_INT_PWR_IMR1);
-       if (err)
-               return err;
-
-       /* Enable clear on read */
-
-       err = twl4030_i2c_write_u8(TWL4030_MODULE_INT,
-                               TWL4030_SIH_CTRL_COR_MASK,
-                               TWL4030_INT_PWR_SIH_CTRL);
-       if (err)
-               return err;
-
-       twl4030_pwrirq_unmask_thread = kthread_create(twl4030_pwrirq_thread,
-               NULL, "twl4030 pwrirq");
-       if (!twl4030_pwrirq_unmask_thread) {
-               printk(KERN_ERR
-                       "%s: could not create twl4030 pwrirq unmask thread!\n",
-                               __func__);
-               return -ENOMEM;
-       }
-
-       for (i = TWL4030_PWR_IRQ_BASE; i < TWL4030_PWR_IRQ_END; i++) {
-               set_irq_chip_and_handler(i, &twl4030_pwrirq_chip,
-                               handle_edge_irq);
-               set_irq_flags(i, IRQF_VALID);
-       }
-
-       set_irq_chained_handler(TWL4030_MODIRQ_PWR, do_twl4030_pwrirq);
-
-       return 0;
-}
-subsys_initcall(twl4030_pwrirq_init);
-
-static void __exit twl4030_pwrirq_exit(void)
-{
-
-       int i;
-
-       /* FIXME the irqs are left enabled; trouble when they arrive... */
-
-       set_irq_handler(TWL4030_MODIRQ_PWR, NULL);
-       set_irq_flags(TWL4030_MODIRQ_PWR, 0);
-
-       for (i = TWL4030_PWR_IRQ_BASE; i < TWL4030_PWR_IRQ_END; i++) {
-               set_irq_handler(i, NULL);
-               set_irq_flags(i, 0);
-       }
-
-       if (twl4030_pwrirq_unmask_thread) {
-               kthread_stop(twl4030_pwrirq_unmask_thread);
-               twl4030_pwrirq_unmask_thread = NULL;
-       }
-}
-module_exit(twl4030_pwrirq_exit);
index 7852dca4a6dd9e2d46702422cc6e3d2597a79d50..46538ed93b2590f469f62705fedeb7aa6abbac5d 100644 (file)
@@ -28,6 +28,7 @@
 #include <linux/init.h>
 #include <linux/time.h>
 #include <linux/interrupt.h>
+#include <linux/irq.h>
 #include <linux/platform_device.h>
 #include <linux/spinlock.h>
 #include <linux/workqueue.h>
@@ -409,23 +410,9 @@ static void twl4030_i2c_access(struct twl4030_usb *twl, int on)
        }
 }
 
-static void usb_irq_enable(struct twl4030_usb *twl, int rising, int falling)
+static void usb_irq_enable(struct twl4030_usb *twl, int trigger)
 {
-       u8 val;
-
-       /* FIXME use set_irq_type(...) when that (soon) works */
-
-       /* edge setup */
-       WARN_ON(twl4030_i2c_read_u8(TWL4030_MODULE_INT,
-                               &val, REG_PWR_EDR1) < 0);
-
-       val &= ~(USB_PRES_RISING | USB_PRES_FALLING);
-       if (rising)
-               val = val | USB_PRES_RISING;
-       if (falling)
-               val = val | USB_PRES_FALLING;
-       WARN_ON(twl4030_i2c_write_u8_verify(twl, TWL4030_MODULE_INT,
-                               val, REG_PWR_EDR1) < 0);
+       set_irq_type(twl->irq, trigger);
 
        if (!twl->irq_enabled) {
                enable_irq(twl->irq);
@@ -469,7 +456,7 @@ static void twl4030_phy_suspend(struct twl4030_usb *twl, int controller_off)
 
        if (!controller_off)
                /* enable rising edge interrupt to detect cable attach */
-               usb_irq_enable(twl, 1, 0);
+               usb_irq_enable(twl, IRQ_TYPE_EDGE_RISING);
 
        twl4030_phy_power(twl, 0);
        twl->asleep = 1;
@@ -481,7 +468,7 @@ static void twl4030_phy_resume(struct twl4030_usb *twl)
                return;
 
        /* enable falling edge interrupt to detect cable detach */
-       usb_irq_enable(twl, 0, 1);
+       usb_irq_enable(twl, IRQ_TYPE_EDGE_FALLING);
 
        twl4030_phy_power(twl, 1);
        twl4030_i2c_access(twl, 1);
index 9b8d74422792939ce5b74d39c1f1d1bc7fc168b8..fae868a8d499257caaedc3be66391cf25310af82 100644 (file)
@@ -704,6 +704,13 @@ int twl_init_irq(int irq_num, unsigned irq_base, unsigned irq_end)
        pr_info("twl4030: %s (irq %d) chaining IRQs %d..%d\n", "PIH",
                        irq_num, irq_base, twl4030_irq_next - 1);
 
+       /* ... and the PWR_INT module ... */
+       status = twl4030_sih_setup(TWL4030_MODULE_INT);
+       if (status < 0) {
+               pr_err("twl4030: sih_setup PWR INT --> %d\n", status);
+               goto fail;
+       }
+
        /* install an irq handler to demultiplex the TWL4030 interrupt */
        task = start_twl4030_irq_thread(irq_num);
        if (!task) {
index 41f66dba4f498eb0a73bf39e34676b0acaa45903..abe87a4d266520d67976ac7f7620cbdfe07446c2 100644 (file)
@@ -447,7 +447,8 @@ static int __devinit twl4030_rtc_probe(struct platform_device *pdev)
                goto out1;
 
        ret = request_irq(irq, twl4030_rtc_interrupt,
-                               0, rtc->dev.bus_id, rtc);
+                               IRQF_TRIGGER_RISING,
+                               rtc->dev.bus_id, rtc);
        if (ret < 0) {
                dev_err(&pdev->dev, "IRQ is not free.\n");
                goto out1;
@@ -466,22 +467,6 @@ static int __devinit twl4030_rtc_probe(struct platform_device *pdev)
                        goto out2;
        }
 
-       /* FIXME stop touching MODULE_INT registers; there's already
-        * driver code responsible for them.
-        */
-
-       /* use rising edge detection for RTC alarm */
-       ret = twl4030_i2c_read_u8(TWL4030_MODULE_INT,
-                       &rd_reg, TWL4030_INT_PWR_EDR1);
-       if (ret < 0)
-               goto out2;
-
-       rd_reg |= BIT(3);
-       ret = twl4030_i2c_write_u8(TWL4030_MODULE_INT,
-                       rd_reg, TWL4030_INT_PWR_EDR1);
-       if (ret < 0)
-               goto out2;
-
        /* init cached IRQ enable bits */
        ret = twl4030_rtc_read_u8(&rtc_irq_bits, REG_RTC_INTERRUPTS_REG);
        if (ret < 0)