mfd: core: Push irqdomain mapping out into devices

Currently the MFD core supports remapping MFD cell interrupts using an
irqdomain but only if the MFD is being instantiated using device tree
and only if the device tree bindings use the pattern of registering IPs
in the device tree with compatible properties.  This will be actively
harmful for drivers which support non-DT platforms and use this pattern
for their DT bindings as it will mean that the core will silently change
remapping behaviour and it is also limiting for drivers which don't do
DT with this particular pattern.  There is also a potential fragility if
there are interrupts not associated with MFD cells and all the cells are
omitted from the device tree for some reason.

Instead change the code to take an IRQ domain as an optional argument,
allowing drivers to take the decision about the parent domain for their
interrupts.  The one current user of this feature is ab8500-core, it has
the domain lookup pushed out into the driver.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

1 files changed, 11 insertions, 10 deletions

diff --git a/drivers/mfd/88pm860x-core.c b/drivers/mfd/88pm860x-core.c
index fca15be..4927f4e 100644
--- a/drivers/mfd/88pm860x-core.c
+++ b/drivers/mfd/88pm860x-core.c
@@ -788,7 +788,7 @@ static void __devinit device_bk_init(struct pm860x_chip *chip,
 		}
 	}
 	ret = mfd_add_devices(chip->dev, 0, bk_devs,
-			      ARRAY_SIZE(bk_devs), NULL, 0);
+			      ARRAY_SIZE(bk_devs), NULL, 0, NULL);
 	if (ret < 0)
 		dev_err(chip->dev, "Failed to add backlight subdev\n");
 }
@@ -808,7 +808,7 @@ static void __devinit device_led_init(struct pm860x_chip *chip,
 		}
 	}
 	ret = mfd_add_devices(chip->dev, 0, led_devs,
-			      ARRAY_SIZE(led_devs), NULL, 0);
+			      ARRAY_SIZE(led_devs), NULL, 0, NULL);
 	if (ret < 0) {
 		dev_err(chip->dev, "Failed to add led subdev\n");
 		return;
@@ -887,7 +887,7 @@ static void __devinit device_regulator_init(struct pm860x_chip *chip,
 		reg_devs[15].pdata_size = sizeof(struct regulator_init_data);
 	}
 	ret = mfd_add_devices(chip->dev, 0, reg_devs,
-			      ARRAY_SIZE(reg_devs), NULL, 0);
+			      ARRAY_SIZE(reg_devs), NULL, 0, NULL);
 	if (ret < 0) {
 		dev_err(chip->dev, "Failed to add regulator subdev\n");
 		return;
@@ -908,7 +908,7 @@ static void __devinit device_rtc_init(struct pm860x_chip *chip,
 	rtc_devs[0].resources = &rtc_resources[0];
 	ret = mfd_add_devices(chip->dev, 0, &rtc_devs[0],
 			      ARRAY_SIZE(rtc_devs), &rtc_resources[0],
-			      chip->irq_base);
+			      chip->irq_base, NULL);
 	if (ret < 0)
 		dev_err(chip->dev, "Failed to add rtc subdev\n");
 }
@@ -927,7 +927,7 @@ static void __devinit device_touch_init(struct pm860x_chip *chip,
 	touch_devs[0].resources = &touch_resources[0];
 	ret = mfd_add_devices(chip->dev, 0, &touch_devs[0],
 			      ARRAY_SIZE(touch_devs), &touch_resources[0],
-			      chip->irq_base);
+			      chip->irq_base, NULL);
 	if (ret < 0)
 		dev_err(chip->dev, "Failed to add touch subdev\n");
 }
@@ -945,7 +945,7 @@ static void __devinit device_power_init(struct pm860x_chip *chip,
 	power_devs[0].num_resources = ARRAY_SIZE(battery_resources);
 	power_devs[0].resources = &battery_resources[0],
 	ret = mfd_add_devices(chip->dev, 0, &power_devs[0], 1,
-			      &battery_resources[0], chip->irq_base);
+			      &battery_resources[0], chip->irq_base, NULL);
 	if (ret < 0)
 		dev_err(chip->dev, "Failed to add battery subdev\n");
 
@@ -954,7 +954,7 @@ static void __devinit device_power_init(struct pm860x_chip *chip,
 	power_devs[1].num_resources = ARRAY_SIZE(charger_resources);
 	power_devs[1].resources = &charger_resources[0],
 	ret = mfd_add_devices(chip->dev, 0, &power_devs[1], 1,
-			      &charger_resources[0], chip->irq_base);
+			      &charger_resources[0], chip->irq_base, NULL);
 	if (ret < 0)
 		dev_err(chip->dev, "Failed to add charger subdev\n");
 
@@ -963,7 +963,7 @@ static void __devinit device_power_init(struct pm860x_chip *chip,
 	power_devs[2].num_resources = ARRAY_SIZE(preg_resources);
 	power_devs[2].resources = &preg_resources[0],
 	ret = mfd_add_devices(chip->dev, 0, &power_devs[2], 1,
-			      &preg_resources[0], chip->irq_base);
+			      &preg_resources[0], chip->irq_base, NULL);
 	if (ret < 0)
 		dev_err(chip->dev, "Failed to add preg subdev\n");
 }
@@ -977,7 +977,7 @@ static void __devinit device_onkey_init(struct pm860x_chip *chip,
 	onkey_devs[0].resources = &onkey_resources[0],
 	ret = mfd_add_devices(chip->dev, 0, &onkey_devs[0],
 			      ARRAY_SIZE(onkey_devs), &onkey_resources[0],
-			      chip->irq_base);
+			      chip->irq_base, NULL);
 	if (ret < 0)
 		dev_err(chip->dev, "Failed to add onkey subdev\n");
 }
@@ -990,7 +990,8 @@ static void __devinit device_codec_init(struct pm860x_chip *chip,
 	codec_devs[0].num_resources = ARRAY_SIZE(codec_resources);
 	codec_devs[0].resources = &codec_resources[0],
 	ret = mfd_add_devices(chip->dev, 0, &codec_devs[0],
-			      ARRAY_SIZE(codec_devs), &codec_resources[0], 0);
+			      ARRAY_SIZE(codec_devs), &codec_resources[0], 0,
+			      NULL);
 	if (ret < 0)
 		dev_err(chip->dev, "Failed to add codec subdev\n");
 }