static irqreturn_t pmic8058_kp_irq(int irq, void *data)
{
struct pmic8058_kp *kp = data;
u8 ctrl_val, events;
int rc;
dev_dbg(kp->dev, "key sense irq\n");
__dump_kp_regs(kp, "pmic8058_kp_irq");
rc = pmic8058_kp_read(kp, &ctrl_val, KEYP_CTRL, 1);
events = ctrl_val & KEYP_CTRL_EVNTS_MASK;
rc = pmic8058_kp_scan_matrix(kp, events);
return IRQ_HANDLED;
}
/*
* NOTE: Any row multiple interrupt issue - PMIC4 Rev A0
*
* If the S/W responds to the key-event interrupt too early and reads the
* recent data, the keypad FSM will mistakenly go to the IDLE state, instead
* of the scan pause state as it is supposed too. Since the key is still
* pressed, the keypad scanner will go through the debounce, scan, and generate
* another key event interrupt. The workaround for this issue is to add delay
* of 1ms between servicing the key event interrupt and reading the recent data.
*/
static irqreturn_t pmic8058_kp_irq(int irq, void *data)
{
struct pmic8058_kp *kp = data;
u8 ctrl_val, events;
int rc;
if (pm8058_rev(kp->pm_chip) == PM_8058_REV_1p0)
mdelay(1);
pr_info("key sense irq\n");
dev_dbg(kp->dev, "key sense irq\n");
__dump_kp_regs(kp, "pmic8058_kp_irq");
rc = pmic8058_kp_read(kp, &ctrl_val, KEYP_CTRL, 1);
events = ctrl_val & KEYP_CTRL_EVNTS_MASK;
rc = pmic8058_kp_scan_matrix(kp, events);
return IRQ_HANDLED;
}
