[PATCH v3 09/13] platform/x86: i2c-multi-instantiate: Distinguish IRQ resource type

Andy Shevchenko
2018-11-27T15:37:41Z

As a preparatory patch switch the driver to distinguish IRQ resource type.
For now, only GpioInt() is supported.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
---
drivers/platform/x86/i2c-multi-instantiate.c | 27 +++++++++++++-------
1 file changed, 18 insertions(+), 9 deletions(-)

diff --git a/drivers/platform/x86/i2c-multi-instantiate.c b/drivers/platform/x86/i2c-multi-instantiate.c
index f82f0b36f38d..efee77a11419 100644
--- a/drivers/platform/x86/i2c-multi-instantiate.c
+++ b/drivers/platform/x86/i2c-multi-instantiate.c
@@ -7,6 +7,7 @@
*/

#include <linux/acpi.h>
+#include <linux/bits.h>
#include <linux/i2c.h>
#include <linux/interrupt.h>
#include <linux/kernel.h>
@@ -14,9 +15,14 @@
#include <linux/platform_device.h>
#include <linux/types.h>

+#define IRQ_RESOURCE_TYPE GENMASK(1, 0)
+#define IRQ_RESOURCE_NONE 0
+#define IRQ_RESOURCE_GPIO 1
+
struct i2c_inst_data {
const char *type;
- int gpio_irq_idx;
+ unsigned int flags;
+ int irq_idx;
};

struct i2c_multi_inst_data {
@@ -88,16 +94,19 @@ static int i2c_multi_inst_probe(struct platform_device *pdev)
snprintf(name, sizeof(name), "%s-%s", match->id,
inst_data[i].type);
board_info.dev_name = name;
- board_info.irq = 0;
- if (inst_data[i].gpio_irq_idx != -1) {
- ret = acpi_dev_gpio_irq_get(adev,
- inst_data[i].gpio_irq_idx);
+ switch (inst_data[i].flags & IRQ_RESOURCE_TYPE) {
+ case IRQ_RESOURCE_GPIO:
+ ret = acpi_dev_gpio_irq_get(adev, inst_data[i].irq_idx);
if (ret < 0) {
dev_err(dev, "Error requesting irq at index %d: %d\n",
- inst_data[i].gpio_irq_idx, ret);
+ inst_data[i].irq_idx, ret);
goto error;
}
board_info.irq = ret;
+ break;
+ default:
+ board_info.irq = 0;
+ break;
}
multi->clients[i] = i2c_acpi_new_device(dev, i, &board_info);
if (PTR_ERR(multi->clients[i]) == -ENODEV)
@@ -139,9 +148,9 @@ static int i2c_multi_inst_remove(struct platform_device *pdev)
}

static const struct i2c_inst_data bsg1160_data[] = {
- { "bmc150_accel", 0 },
- { "bmc150_magn", -1 },
- { "bmg160", -1 },
+ { "bmc150_accel", IRQ_RESOURCE_GPIO, 0 },
+ { "bmc150_magn" },
+ { "bmg160" },
{}
};

--
2.19.2