* Free Software Foundation.
*/
-#include <linux/slab.h>
#include <linux/module.h>
-#include <linux/platform_device.h>
-#include <linux/mutex.h>
-#include <linux/interrupt.h>
-#include <linux/mfd/core.h>
-#include <linux/mfd/mc13xxx.h>
#include <linux/of.h>
#include <linux/of_device.h>
-#include <linux/of_gpio.h>
+#include <linux/platform_device.h>
+#include <linux/mfd/core.h>
#include "mc13xxx.h"
#define MC13XXX_IRQSTAT0 0
-#define MC13XXX_IRQSTAT0_ADCDONEI (1 << 0)
-#define MC13XXX_IRQSTAT0_ADCBISDONEI (1 << 1)
-#define MC13XXX_IRQSTAT0_TSI (1 << 2)
-#define MC13783_IRQSTAT0_WHIGHI (1 << 3)
-#define MC13783_IRQSTAT0_WLOWI (1 << 4)
-#define MC13XXX_IRQSTAT0_CHGDETI (1 << 6)
-#define MC13783_IRQSTAT0_CHGOVI (1 << 7)
-#define MC13XXX_IRQSTAT0_CHGREVI (1 << 8)
-#define MC13XXX_IRQSTAT0_CHGSHORTI (1 << 9)
-#define MC13XXX_IRQSTAT0_CCCVI (1 << 10)
-#define MC13XXX_IRQSTAT0_CHGCURRI (1 << 11)
-#define MC13XXX_IRQSTAT0_BPONI (1 << 12)
-#define MC13XXX_IRQSTAT0_LOBATLI (1 << 13)
-#define MC13XXX_IRQSTAT0_LOBATHI (1 << 14)
-#define MC13783_IRQSTAT0_UDPI (1 << 15)
-#define MC13783_IRQSTAT0_USBI (1 << 16)
-#define MC13783_IRQSTAT0_IDI (1 << 19)
-#define MC13783_IRQSTAT0_SE1I (1 << 21)
-#define MC13783_IRQSTAT0_CKDETI (1 << 22)
-#define MC13783_IRQSTAT0_UDMI (1 << 23)
-
#define MC13XXX_IRQMASK0 1
-#define MC13XXX_IRQMASK0_ADCDONEM MC13XXX_IRQSTAT0_ADCDONEI
-#define MC13XXX_IRQMASK0_ADCBISDONEM MC13XXX_IRQSTAT0_ADCBISDONEI
-#define MC13XXX_IRQMASK0_TSM MC13XXX_IRQSTAT0_TSI
-#define MC13783_IRQMASK0_WHIGHM MC13783_IRQSTAT0_WHIGHI
-#define MC13783_IRQMASK0_WLOWM MC13783_IRQSTAT0_WLOWI
-#define MC13XXX_IRQMASK0_CHGDETM MC13XXX_IRQSTAT0_CHGDETI
-#define MC13783_IRQMASK0_CHGOVM MC13783_IRQSTAT0_CHGOVI
-#define MC13XXX_IRQMASK0_CHGREVM MC13XXX_IRQSTAT0_CHGREVI
-#define MC13XXX_IRQMASK0_CHGSHORTM MC13XXX_IRQSTAT0_CHGSHORTI
-#define MC13XXX_IRQMASK0_CCCVM MC13XXX_IRQSTAT0_CCCVI
-#define MC13XXX_IRQMASK0_CHGCURRM MC13XXX_IRQSTAT0_CHGCURRI
-#define MC13XXX_IRQMASK0_BPONM MC13XXX_IRQSTAT0_BPONI
-#define MC13XXX_IRQMASK0_LOBATLM MC13XXX_IRQSTAT0_LOBATLI
-#define MC13XXX_IRQMASK0_LOBATHM MC13XXX_IRQSTAT0_LOBATHI
-#define MC13783_IRQMASK0_UDPM MC13783_IRQSTAT0_UDPI
-#define MC13783_IRQMASK0_USBM MC13783_IRQSTAT0_USBI
-#define MC13783_IRQMASK0_IDM MC13783_IRQSTAT0_IDI
-#define MC13783_IRQMASK0_SE1M MC13783_IRQSTAT0_SE1I
-#define MC13783_IRQMASK0_CKDETM MC13783_IRQSTAT0_CKDETI
-#define MC13783_IRQMASK0_UDMM MC13783_IRQSTAT0_UDMI
-
#define MC13XXX_IRQSTAT1 3
-#define MC13XXX_IRQSTAT1_1HZI (1 << 0)
-#define MC13XXX_IRQSTAT1_TODAI (1 << 1)
-#define MC13783_IRQSTAT1_ONOFD1I (1 << 3)
-#define MC13783_IRQSTAT1_ONOFD2I (1 << 4)
-#define MC13783_IRQSTAT1_ONOFD3I (1 << 5)
-#define MC13XXX_IRQSTAT1_SYSRSTI (1 << 6)
-#define MC13XXX_IRQSTAT1_RTCRSTI (1 << 7)
-#define MC13XXX_IRQSTAT1_PCI (1 << 8)
-#define MC13XXX_IRQSTAT1_WARMI (1 << 9)
-#define MC13XXX_IRQSTAT1_MEMHLDI (1 << 10)
-#define MC13783_IRQSTAT1_PWRRDYI (1 << 11)
-#define MC13XXX_IRQSTAT1_THWARNLI (1 << 12)
-#define MC13XXX_IRQSTAT1_THWARNHI (1 << 13)
-#define MC13XXX_IRQSTAT1_CLKI (1 << 14)
-#define MC13783_IRQSTAT1_SEMAFI (1 << 15)
-#define MC13783_IRQSTAT1_MC2BI (1 << 17)
-#define MC13783_IRQSTAT1_HSDETI (1 << 18)
-#define MC13783_IRQSTAT1_HSLI (1 << 19)
-#define MC13783_IRQSTAT1_ALSPTHI (1 << 20)
-#define MC13783_IRQSTAT1_AHSSHORTI (1 << 21)
-
#define MC13XXX_IRQMASK1 4
-#define MC13XXX_IRQMASK1_1HZM MC13XXX_IRQSTAT1_1HZI
-#define MC13XXX_IRQMASK1_TODAM MC13XXX_IRQSTAT1_TODAI
-#define MC13783_IRQMASK1_ONOFD1M MC13783_IRQSTAT1_ONOFD1I
-#define MC13783_IRQMASK1_ONOFD2M MC13783_IRQSTAT1_ONOFD2I
-#define MC13783_IRQMASK1_ONOFD3M MC13783_IRQSTAT1_ONOFD3I
-#define MC13XXX_IRQMASK1_SYSRSTM MC13XXX_IRQSTAT1_SYSRSTI
-#define MC13XXX_IRQMASK1_RTCRSTM MC13XXX_IRQSTAT1_RTCRSTI
-#define MC13XXX_IRQMASK1_PCM MC13XXX_IRQSTAT1_PCI
-#define MC13XXX_IRQMASK1_WARMM MC13XXX_IRQSTAT1_WARMI
-#define MC13XXX_IRQMASK1_MEMHLDM MC13XXX_IRQSTAT1_MEMHLDI
-#define MC13783_IRQMASK1_PWRRDYM MC13783_IRQSTAT1_PWRRDYI
-#define MC13XXX_IRQMASK1_THWARNLM MC13XXX_IRQSTAT1_THWARNLI
-#define MC13XXX_IRQMASK1_THWARNHM MC13XXX_IRQSTAT1_THWARNHI
-#define MC13XXX_IRQMASK1_CLKM MC13XXX_IRQSTAT1_CLKI
-#define MC13783_IRQMASK1_SEMAFM MC13783_IRQSTAT1_SEMAFI
-#define MC13783_IRQMASK1_MC2BM MC13783_IRQSTAT1_MC2BI
-#define MC13783_IRQMASK1_HSDETM MC13783_IRQSTAT1_HSDETI
-#define MC13783_IRQMASK1_HSLM MC13783_IRQSTAT1_HSLI
-#define MC13783_IRQMASK1_ALSPTHM MC13783_IRQSTAT1_ALSPTHI
-#define MC13783_IRQMASK1_AHSSHORTM MC13783_IRQSTAT1_AHSSHORTI
#define MC13XXX_REVISION 7
#define MC13XXX_REVISION_REVMETAL (0x07 << 0)
int mc13xxx_irq_mask(struct mc13xxx *mc13xxx, int irq)
{
- int ret;
- unsigned int offmask = irq < 24 ? MC13XXX_IRQMASK0 : MC13XXX_IRQMASK1;
- u32 irqbit = 1 << (irq < 24 ? irq : irq - 24);
- u32 mask;
-
- if (irq < 0 || irq >= MC13XXX_NUM_IRQ)
- return -EINVAL;
-
- ret = mc13xxx_reg_read(mc13xxx, offmask, &mask);
- if (ret)
- return ret;
+ int virq = regmap_irq_get_virq(mc13xxx->irq_data, irq);
- if (mask & irqbit)
- /* already masked */
- return 0;
+ disable_irq_nosync(virq);
- return mc13xxx_reg_write(mc13xxx, offmask, mask | irqbit);
+ return 0;
}
EXPORT_SYMBOL(mc13xxx_irq_mask);
int mc13xxx_irq_unmask(struct mc13xxx *mc13xxx, int irq)
{
- int ret;
- unsigned int offmask = irq < 24 ? MC13XXX_IRQMASK0 : MC13XXX_IRQMASK1;
- u32 irqbit = 1 << (irq < 24 ? irq : irq - 24);
- u32 mask;
-
- if (irq < 0 || irq >= MC13XXX_NUM_IRQ)
- return -EINVAL;
+ int virq = regmap_irq_get_virq(mc13xxx->irq_data, irq);
- ret = mc13xxx_reg_read(mc13xxx, offmask, &mask);
- if (ret)
- return ret;
+ enable_irq(virq);
- if (!(mask & irqbit))
- /* already unmasked */
- return 0;
-
- return mc13xxx_reg_write(mc13xxx, offmask, mask & ~irqbit);
+ return 0;
}
EXPORT_SYMBOL(mc13xxx_irq_unmask);
unsigned int offstat = irq < 24 ? MC13XXX_IRQSTAT0 : MC13XXX_IRQSTAT1;
u32 irqbit = 1 << (irq < 24 ? irq : irq - 24);
- if (irq < 0 || irq >= MC13XXX_NUM_IRQ)
+ if (irq < 0 || irq >= ARRAY_SIZE(mc13xxx->irqs))
return -EINVAL;
if (enabled) {
}
EXPORT_SYMBOL(mc13xxx_irq_status);
-int mc13xxx_irq_ack(struct mc13xxx *mc13xxx, int irq)
-{
- unsigned int offstat = irq < 24 ? MC13XXX_IRQSTAT0 : MC13XXX_IRQSTAT1;
- unsigned int val = 1 << (irq < 24 ? irq : irq - 24);
-
- BUG_ON(irq < 0 || irq >= MC13XXX_NUM_IRQ);
-
- return mc13xxx_reg_write(mc13xxx, offstat, val);
-}
-EXPORT_SYMBOL(mc13xxx_irq_ack);
-
-int mc13xxx_irq_request_nounmask(struct mc13xxx *mc13xxx, int irq,
- irq_handler_t handler, const char *name, void *dev)
-{
- BUG_ON(!mutex_is_locked(&mc13xxx->lock));
- BUG_ON(!handler);
-
- if (irq < 0 || irq >= MC13XXX_NUM_IRQ)
- return -EINVAL;
-
- if (mc13xxx->irqhandler[irq])
- return -EBUSY;
-
- mc13xxx->irqhandler[irq] = handler;
- mc13xxx->irqdata[irq] = dev;
-
- return 0;
-}
-EXPORT_SYMBOL(mc13xxx_irq_request_nounmask);
-
int mc13xxx_irq_request(struct mc13xxx *mc13xxx, int irq,
irq_handler_t handler, const char *name, void *dev)
{
- int ret;
+ int virq = regmap_irq_get_virq(mc13xxx->irq_data, irq);
- ret = mc13xxx_irq_request_nounmask(mc13xxx, irq, handler, name, dev);
- if (ret)
- return ret;
-
- ret = mc13xxx_irq_unmask(mc13xxx, irq);
- if (ret) {
- mc13xxx->irqhandler[irq] = NULL;
- mc13xxx->irqdata[irq] = NULL;
- return ret;
- }
-
- return 0;
+ return devm_request_threaded_irq(mc13xxx->dev, virq, NULL, handler,
+ 0, name, dev);
}
EXPORT_SYMBOL(mc13xxx_irq_request);
int mc13xxx_irq_free(struct mc13xxx *mc13xxx, int irq, void *dev)
{
- int ret;
- BUG_ON(!mutex_is_locked(&mc13xxx->lock));
+ int virq = regmap_irq_get_virq(mc13xxx->irq_data, irq);
- if (irq < 0 || irq >= MC13XXX_NUM_IRQ || !mc13xxx->irqhandler[irq] ||
- mc13xxx->irqdata[irq] != dev)
- return -EINVAL;
-
- ret = mc13xxx_irq_mask(mc13xxx, irq);
- if (ret)
- return ret;
-
- mc13xxx->irqhandler[irq] = NULL;
- mc13xxx->irqdata[irq] = NULL;
+ devm_free_irq(mc13xxx->dev, virq, dev);
return 0;
}
EXPORT_SYMBOL(mc13xxx_irq_free);
-static inline irqreturn_t mc13xxx_irqhandler(struct mc13xxx *mc13xxx, int irq)
-{
- return mc13xxx->irqhandler[irq](irq, mc13xxx->irqdata[irq]);
-}
-
-/*
- * returns: number of handled irqs or negative error
- * locking: holds mc13xxx->lock
- */
-static int mc13xxx_irq_handle(struct mc13xxx *mc13xxx,
- unsigned int offstat, unsigned int offmask, int baseirq)
-{
- u32 stat, mask;
- int ret = mc13xxx_reg_read(mc13xxx, offstat, &stat);
- int num_handled = 0;
-
- if (ret)
- return ret;
-
- ret = mc13xxx_reg_read(mc13xxx, offmask, &mask);
- if (ret)
- return ret;
-
- while (stat & ~mask) {
- int irq = __ffs(stat & ~mask);
-
- stat &= ~(1 << irq);
-
- if (likely(mc13xxx->irqhandler[baseirq + irq])) {
- irqreturn_t handled;
-
- handled = mc13xxx_irqhandler(mc13xxx, baseirq + irq);
- if (handled == IRQ_HANDLED)
- num_handled++;
- } else {
- dev_err(mc13xxx->dev,
- "BUG: irq %u but no handler\n",
- baseirq + irq);
-
- mask |= 1 << irq;
-
- ret = mc13xxx_reg_write(mc13xxx, offmask, mask);
- }
- }
-
- return num_handled;
-}
-
-static irqreturn_t mc13xxx_irq_thread(int irq, void *data)
-{
- struct mc13xxx *mc13xxx = data;
- irqreturn_t ret;
- int handled = 0;
-
- mc13xxx_lock(mc13xxx);
-
- ret = mc13xxx_irq_handle(mc13xxx, MC13XXX_IRQSTAT0,
- MC13XXX_IRQMASK0, 0);
- if (ret > 0)
- handled = 1;
-
- ret = mc13xxx_irq_handle(mc13xxx, MC13XXX_IRQSTAT1,
- MC13XXX_IRQMASK1, 24);
- if (ret > 0)
- handled = 1;
-
- mc13xxx_unlock(mc13xxx);
-
- return IRQ_RETVAL(handled);
-}
-
#define maskval(reg, mask) (((reg) & (mask)) >> __ffs(mask))
static void mc13xxx_print_revision(struct mc13xxx *mc13xxx, u32 revision)
{
{
struct mc13xxx_adcdone_data *adcdone_data = data;
- mc13xxx_irq_ack(adcdone_data->mc13xxx, irq);
-
complete_all(&adcdone_data->done);
return IRQ_HANDLED;
dev_dbg(mc13xxx->dev, "%s: request irq\n", __func__);
mc13xxx_irq_request(mc13xxx, MC13XXX_IRQ_ADCDONE,
mc13xxx_handler_adcdone, __func__, &adcdone_data);
- mc13xxx_irq_ack(mc13xxx, MC13XXX_IRQ_ADCDONE);
mc13xxx_reg_write(mc13xxx, MC13XXX_ADC0, adc0);
mc13xxx_reg_write(mc13xxx, MC13XXX_ADC1, adc1);
if (!cell.name)
return -ENOMEM;
- return mfd_add_devices(mc13xxx->dev, -1, &cell, 1, NULL, 0, NULL);
+ return mfd_add_devices(mc13xxx->dev, -1, &cell, 1, NULL, 0,
+ regmap_irq_get_domain(mc13xxx->irq_data));
}
static int mc13xxx_add_subdevice(struct mc13xxx *mc13xxx, const char *format)
{
struct mc13xxx_platform_data *pdata = dev_get_platdata(dev);
struct mc13xxx *mc13xxx = dev_get_drvdata(dev);
- int ret;
u32 revision;
+ int i, ret;
mc13xxx->dev = dev;
mc13xxx->variant->print_revision(mc13xxx, revision);
- /* mask all irqs */
- ret = mc13xxx_reg_write(mc13xxx, MC13XXX_IRQMASK0, 0x00ffffff);
- if (ret)
- return ret;
+ for (i = 0; i < ARRAY_SIZE(mc13xxx->irqs); i++) {
+ mc13xxx->irqs[i].reg_offset = i / MC13XXX_IRQ_PER_REG;
+ mc13xxx->irqs[i].mask = BIT(i % MC13XXX_IRQ_PER_REG);
+ }
- ret = mc13xxx_reg_write(mc13xxx, MC13XXX_IRQMASK1, 0x00ffffff);
+ mc13xxx->irq_chip.name = dev_name(dev);
+ mc13xxx->irq_chip.status_base = MC13XXX_IRQSTAT0;
+ mc13xxx->irq_chip.mask_base = MC13XXX_IRQMASK0;
+ mc13xxx->irq_chip.ack_base = MC13XXX_IRQSTAT0;
+ mc13xxx->irq_chip.irq_reg_stride = MC13XXX_IRQSTAT1 - MC13XXX_IRQSTAT0;
+ mc13xxx->irq_chip.init_ack_masked = true;
+ mc13xxx->irq_chip.use_ack = true;
+ mc13xxx->irq_chip.num_regs = MC13XXX_IRQ_REG_CNT;
+ mc13xxx->irq_chip.irqs = mc13xxx->irqs;
+ mc13xxx->irq_chip.num_irqs = ARRAY_SIZE(mc13xxx->irqs);
+
+ ret = regmap_add_irq_chip(mc13xxx->regmap, mc13xxx->irq, IRQF_ONESHOT,
+ 0, &mc13xxx->irq_chip, &mc13xxx->irq_data);
if (ret)
return ret;
mutex_init(&mc13xxx->lock);
- ret = request_threaded_irq(mc13xxx->irq, NULL, mc13xxx_irq_thread,
- IRQF_ONESHOT | IRQF_TRIGGER_HIGH, "mc13xxx", mc13xxx);
- if (ret)
- return ret;
-
if (mc13xxx_probe_flags_dt(mc13xxx) < 0 && pdata)
mc13xxx->flags = pdata->flags;
- if (mc13xxx->flags & MC13XXX_USE_ADC)
- mc13xxx_add_subdevice(mc13xxx, "%s-adc");
-
- if (mc13xxx->flags & MC13XXX_USE_RTC)
- mc13xxx_add_subdevice(mc13xxx, "%s-rtc");
-
if (pdata) {
mc13xxx_add_subdevice_pdata(mc13xxx, "%s-regulator",
&pdata->regulators, sizeof(pdata->regulators));
mc13xxx_add_subdevice(mc13xxx, "%s-ts");
}
+ if (mc13xxx->flags & MC13XXX_USE_ADC)
+ mc13xxx_add_subdevice(mc13xxx, "%s-adc");
+
+ if (mc13xxx->flags & MC13XXX_USE_RTC)
+ mc13xxx_add_subdevice(mc13xxx, "%s-rtc");
+
return 0;
}
EXPORT_SYMBOL_GPL(mc13xxx_common_init);
{
struct mc13xxx *mc13xxx = dev_get_drvdata(dev);
- free_irq(mc13xxx->irq, mc13xxx);
mfd_remove_devices(dev);
+ regmap_del_irq_chip(mc13xxx->irq, mc13xxx->irq_data);
mutex_destroy(&mc13xxx->lock);
return 0;
projects / openwrt / staging / blogic.git / commitdiff