From: Charles Keepax <ckeepax@opensource.cirrus.com>
To: <wsa@the-dreams.de>, <mika.westerberg@linux.intel.com>
Cc: <jarkko.nikula@linux.intel.com>,
<andriy.shevchenko@linux.intel.com>, <linux-i2c@vger.kernel.org>,
<linux-acpi@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<benjamin.tissoires@redhat.com>, <jbroadus@gmail.com>,
<patches@opensource.cirrus.com>
Subject: [PATCH v4 3/7] i2c: acpi: Factor out getting the IRQ from ACPI
Date: Tue, 11 Jun 2019 13:30:57 +0100 [thread overview]
Message-ID: <20190611123101.25264-4-ckeepax@opensource.cirrus.com> (raw)
In-Reply-To: <20190611123101.25264-1-ckeepax@opensource.cirrus.com>
In preparation for future refactoring factor out the fetch of the IRQ
into its own helper function.
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
---
No changes since v3.
Thanks,
Charles
drivers/i2c/i2c-core-acpi.c | 33 +++++++++++++++++++++------------
1 file changed, 21 insertions(+), 12 deletions(-)
diff --git a/drivers/i2c/i2c-core-acpi.c b/drivers/i2c/i2c-core-acpi.c
index 47d5b1c5ec9e0..7d4d66ba752d4 100644
--- a/drivers/i2c/i2c-core-acpi.c
+++ b/drivers/i2c/i2c-core-acpi.c
@@ -144,14 +144,30 @@ static int i2c_acpi_add_resource(struct acpi_resource *ares, void *data)
return 1; /* No need to add resource to the list */
}
+static int i2c_acpi_get_irq(struct acpi_device *adev)
+{
+ struct list_head resource_list;
+ int irq = -ENOENT;
+ int ret;
+
+ INIT_LIST_HEAD(&resource_list);
+
+ ret = acpi_dev_get_resources(adev, &resource_list,
+ i2c_acpi_add_resource, &irq);
+ if (ret < 0)
+ return -EINVAL;
+
+ acpi_dev_free_resource_list(&resource_list);
+
+ return irq;
+}
+
static int i2c_acpi_get_info(struct acpi_device *adev,
struct i2c_board_info *info,
struct i2c_adapter *adapter,
acpi_handle *adapter_handle)
{
- struct list_head resource_list;
struct i2c_acpi_lookup lookup;
- int irq = -ENOENT;
int ret;
memset(&lookup, 0, sizeof(lookup));
@@ -182,16 +198,9 @@ static int i2c_acpi_get_info(struct acpi_device *adev,
*adapter_handle = lookup.adapter_handle;
/* Then fill IRQ number if any */
- INIT_LIST_HEAD(&resource_list);
- ret = acpi_dev_get_resources(adev, &resource_list,
- i2c_acpi_add_resource, &irq);
- if (ret < 0)
- return -EINVAL;
-
- if (irq > 0)
- info->irq = irq;
-
- acpi_dev_free_resource_list(&resource_list);
+ ret = i2c_acpi_get_irq(adev);
+ if (ret > 0)
+ info->irq = ret;
acpi_set_modalias(adev, dev_name(&adev->dev), info->type,
sizeof(info->type));
--
2.11.0
next prev parent reply other threads:[~2019-06-11 12:32 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-11 12:30 [PATCH v4 0/7] I2C IRQ Probe Improvements Charles Keepax
2019-06-11 12:30 ` [PATCH v4 1/7] i2c: core: Allow whole core to use i2c_dev_irq_from_resources Charles Keepax
2019-06-11 12:30 ` [PATCH v4 2/7] i2c: acpi: Use available IRQ helper functions Charles Keepax
2019-06-11 12:47 ` Andy Shevchenko
2019-06-11 12:30 ` Charles Keepax [this message]
2019-06-11 12:30 ` [PATCH v4 4/7] i2c: core: Make i2c_acpi_get_irq available to the rest of the I2C core Charles Keepax
2019-06-12 7:20 ` Mika Westerberg
2019-06-12 15:11 ` Benjamin Tissoires
2019-06-12 15:27 ` Mika Westerberg
2019-06-13 8:48 ` Charles Keepax
2019-06-13 9:32 ` Benjamin Tissoires
2019-06-13 15:06 ` Charles Keepax
2019-06-11 12:30 ` [PATCH v4 5/7] i2c: core: Move ACPI IRQ handling to probe time Charles Keepax
2019-06-11 12:31 ` [PATCH v4 6/7] i2c: core: Move ACPI gpio IRQ handling into i2c_acpi_get_irq Charles Keepax
2019-06-11 12:31 ` [PATCH v4 7/7] i2c: core: Tidy up handling of init_irq Charles Keepax
2019-06-11 12:51 ` [PATCH v4 0/7] I2C IRQ Probe Improvements Andy Shevchenko
2019-06-11 15:16 ` Benjamin Tissoires
2019-06-11 15:28 ` Charles Keepax
2019-06-12 15:13 ` Benjamin Tissoires
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