/**
* omap_wakeupgen_check_interrupts() - sanity check for pending interrupts
* @report_string: what is used to report
*
* Return false if there are no pending interrupts, else, if there
* are pending interrupts, return true.
*
* NOTE: if report_string is not NULL, then logic will search beyond
* the first occurance and report all such pending events. if report_string
* is NULL, search returns true at the very first occurance of event.
*/
bool omap_wakeupgen_check_interrupts(char *report_string)
{
int i, k;
u32 gica, wakea_c0, wakea_c1;
int ret = false;
for (i = 0; i < spi_irq_banks - 1; i++) {
gica = gic_readl(GIC_DIST_PENDING_SET, i + 1);
/*
* HACK: On OMAP4 GP devices 8th (secure) interrupt
* is constantly pending and thus preventing suspend.
* The source of this interrupt is CONTROL_CORE_SEC_STATUS
* register. This register can't be cleared on GP device
* because it is accessible for write only from secure
* privileged mode. So just ignore 8th interrupt in this check.
*/
if (i == 0 && cpu_is_omap44xx() &&
(omap_type() == OMAP2_DEVICE_TYPE_GP))
gica &= ~(1 << 8);
wakea_c0 = wakeupgen_readl(i, 0);
wakea_c1 = wakeupgen_readl(i, 1);
/* If there is nothing pending, nothing to report */
if (!gica)
continue;
/* report register dump for debug */
pr_debug("%s: %s: IRQ Bank = %d GIC Pending status=0x%08x "
"GIC Enable = 0x%08x Wakeupgen Config ="
"cpu0=0x%08x cpu1=0x%08x\n",
__func__, report_string, i, gica,
gic_readl(GIC_DIST_ENABLE_SET, i + 1),
wakea_c0, wakea_c1);
k = 0;
while (gica) {
if (gica & 0x1) {
struct irq_desc *desc;
const char *name, *wc0, *wc1;
int irq;
/* Return true if pending interrupts */
ret = true;
/*
* we need to search for more ONLY if
* there is something to report
*/
if (!report_string)
goto quit_search;
/* Grab the current wakeup state for CPU0,1 */
wc0 = (wakea_c0 & 0x1) ? "yes" : "no";
wc1 = (wakea_c1 & 0x1) ? "yes" : "no";
/* Since we skip GIC PPI and SGI, base 32 */
irq = 32 + i * 32 + k;
desc = irq_to_desc(irq);
if (desc && desc->action &&
desc->action->name) {
name = desc->action->name;
} else if (irq == OMAP44XX_IRQ_PRCM) {
name = NULL;
print_prcm_wakeirq(irq, report_string);
} else {
name = "unknown";
}
if (name)
pr_info("%s: IRQ %d(%s)(OMAP-IRQ=%d) "\
"Pending! Wakeup Enable: "\
"CPU0=%s,CPU1=%s\n",
report_string, irq, name,
(irq - 32), wc0, wc1);
}
k++;
gica >>= 1;
wakea_c0 >>= 1;
wakea_c1 >>= 1;
}
}
quit_search:
return ret;
}
/**
* omap_wakeupgen_check_interrupts() - sanity check for pending interrupts
* @report_string: what is used to report
*
* Return false if there are no pending interrupts, else, if there
* are pending interrupts, return true.
*
* NOTE: if report_string is not NULL, then logic will search beyond
* the first occurance and report all such pending events. if report_string
* is NULL, search returns true at the very first occurance of event.
*/
bool omap_wakeupgen_check_interrupts(char *report_string)
{
int i, k;
u32 gica, wakea_c0, wakea_c1;
int ret = false;
for (i = 0; i < spi_irq_banks - 1; i++) {
gica = gic_readl(GIC_DIST_PENDING_SET, i + 1);
wakea_c0 = wakeupgen_readl(i, 0);
wakea_c1 = wakeupgen_readl(i, 1);
/* If there is nothing pending, nothing to report */
if (!gica)
continue;
/* report register dump for debug */
pr_debug("%s: %s: IRQ Bank = %d GIC Pending status=0x%08x "
"GIC Enable = 0x%08x Wakeupgen Config ="
"cpu0=0x%08x cpu1=0x%08x\n",
__func__, report_string, i, gica,
gic_readl(GIC_DIST_ENABLE_SET, i + 1),
wakea_c0, wakea_c1);
k = 0;
while (gica) {
if (gica & 0x1) {
struct irq_desc *desc;
const char *name, *wc0, *wc1;
int irq;
/* Return true if pending interrupts */
ret = true;
/*
* we need to search for more ONLY if
* there is something to report
*/
if (!report_string)
goto quit_search;
/* Grab the current wakeup state for CPU0,1 */
wc0 = (wakea_c0 & 0x1) ? "yes" : "no";
wc1 = (wakea_c1 & 0x1) ? "yes" : "no";
/* Since we skip GIC PPI and SGI, base 32 */
irq = 32 + i * 32 + k;
desc = irq_to_desc(irq);
if (desc && desc->action &&
desc->action->name) {
name = desc->action->name;
} else if (irq == OMAP44XX_IRQ_PRCM) {
name = NULL;
print_prcm_wakeirq(irq, report_string);
} else {
name = "unknown";
}
if (name)
pr_info("%s: IRQ %d(%s)(OMAP-IRQ=%d) "\
"Pending! Wakeup Enable: "\
"CPU0=%s,CPU1=%s\n",
report_string, irq, name,
(irq - 32), wc0, wc1);
}
k++;
gica >>= 1;
wakea_c0 >>= 1;
wakea_c1 >>= 1;
}
}
quit_search:
return ret;
}
