summaryrefslogtreecommitdiff
path: root/drivers/gpio/gpio-tc3589x.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/gpio/gpio-tc3589x.c')
-rw-r--r--drivers/gpio/gpio-tc3589x.c20
1 files changed, 17 insertions, 3 deletions
diff --git a/drivers/gpio/gpio-tc3589x.c b/drivers/gpio/gpio-tc3589x.c
index 58b0da9eb76f..55b8dbd13d11 100644
--- a/drivers/gpio/gpio-tc3589x.c
+++ b/drivers/gpio/gpio-tc3589x.c
@@ -19,9 +19,9 @@
* These registers are modified under the irq bus lock and cached to avoid
* unnecessary writes in bus_sync_unlock.
*/
-enum { REG_IBE, REG_IEV, REG_IS, REG_IE };
+enum { REG_IBE, REG_IEV, REG_IS, REG_IE, REG_DIRECT };
-#define CACHE_NR_REGS 4
+#define CACHE_NR_REGS 5
#define CACHE_NR_BANKS 3
struct tc3589x_gpio {
@@ -200,6 +200,7 @@ static void tc3589x_gpio_irq_sync_unlock(struct irq_data *d)
[REG_IEV] = TC3589x_GPIOIEV0,
[REG_IS] = TC3589x_GPIOIS0,
[REG_IE] = TC3589x_GPIOIE0,
+ [REG_DIRECT] = TC3589x_DIRECT0,
};
int i, j;
@@ -212,7 +213,7 @@ static void tc3589x_gpio_irq_sync_unlock(struct irq_data *d)
continue;
tc3589x_gpio->oldregs[i][j] = new;
- tc3589x_reg_write(tc3589x, regmap[i] + j * 8, new);
+ tc3589x_reg_write(tc3589x, regmap[i] + j, new);
}
}
@@ -228,6 +229,7 @@ static void tc3589x_gpio_irq_mask(struct irq_data *d)
int mask = BIT(offset % 8);
tc3589x_gpio->regs[REG_IE][regoffset] &= ~mask;
+ tc3589x_gpio->regs[REG_DIRECT][regoffset] |= mask;
}
static void tc3589x_gpio_irq_unmask(struct irq_data *d)
@@ -239,6 +241,7 @@ static void tc3589x_gpio_irq_unmask(struct irq_data *d)
int mask = BIT(offset % 8);
tc3589x_gpio->regs[REG_IE][regoffset] |= mask;
+ tc3589x_gpio->regs[REG_DIRECT][regoffset] &= ~mask;
}
static struct irq_chip tc3589x_gpio_irq_chip = {
@@ -334,6 +337,17 @@ static int tc3589x_gpio_probe(struct platform_device *pdev)
if (ret < 0)
return ret;
+ /* For tc35894, have to disable Direct KBD interrupts,
+ * else IRQST will always be 0x20, IRQN low level, can't
+ * clear the irq status.
+ * TODO: need more test on other tc3589x chip.
+ *
+ */
+ ret = tc3589x_reg_write(tc3589x, TC3589x_DKBDMSK,
+ TC3589x_DKBDMSK_ELINT | TC3589x_DKBDMSK_EINT);
+ if (ret < 0)
+ return ret;
+
ret = devm_request_threaded_irq(&pdev->dev,
irq, NULL, tc3589x_gpio_irq,
IRQF_ONESHOT, "tc3589x-gpio",