From: Crestez Dan Leonard <leonard.crestez@intel.com>
To: linux-acpi@vger.kernel.org,
"Rafael J. Wysocki" <rjw@rjwysocki.net>,
Mika Westerberg <mika.westerberg@linux.intel.com>
Cc: Crestez Dan Leonard <leonard.crestez@intel.com>,
Len Brown <lenb@kernel.org>,
linux-i2c@vger.kernel.org, Wolfram Sang <wsa@the-dreams.de>,
linux-spi@vger.kernel.org, Mark Brown <broonie@kernel.org>,
linux-kernel@vger.kernel.org,
Octavian Purdila <octavian.purdila@intel.com>
Subject: [PATCH 2/3] acpi i2c: Initialize info.type from of_compatible
Date: Wed, 15 Jun 2016 21:30:28 +0300 [thread overview]
Message-ID: <13cb5b7766b1b25a2bb61ce0053a38f6f440907b.1466014238.git.leonard.crestez@intel.com> (raw)
In-Reply-To: <cover.1466014238.git.leonard.crestez@intel.com>
In-Reply-To: <cover.1466014238.git.leonard.crestez@intel.com>
When using devicetree i2c_board_info.type is set to the compatible
string with the vendor prefix removed. For I2C devices described via
ACPI the i2c_board_info.type string is set to the ACPI device name. When
using ACPI and DT ids this string ends up something like "PRP0001:00".
If the of_compatible property is present try to use that instead. This
makes it easier to instantiate i2c drivers through ACPI with DT ids.
Signed-off-by: Crestez Dan Leonard <leonard.crestez@intel.com>
---
drivers/i2c/i2c-core.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c
index af11b65..5ab1fb9 100644
--- a/drivers/i2c/i2c-core.c
+++ b/drivers/i2c/i2c-core.c
@@ -188,8 +188,14 @@ static acpi_status acpi_i2c_add_device(acpi_handle handle, u32 level,
acpi_dev_free_resource_list(&resource_list);
+ if (adev->data.of_compatible) {
+ ret = acpi_of_modalias(adev, info.type, sizeof(info.type));
+ if (ret)
+ return -EINVAL;
+ } else
+ strlcpy(info.type, dev_name(&adev->dev), sizeof(info.type));
+
adev->power.flags.ignore_parent = true;
- strlcpy(info.type, dev_name(&adev->dev), sizeof(info.type));
if (!i2c_new_device(adapter, &info)) {
adev->power.flags.ignore_parent = false;
dev_err(&adapter->dev,
--
2.5.5
next prev parent reply other threads:[~2016-06-15 18:31 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-15 18:30 [PATCH 0/3] Init device ids from ACPI of_compatible Crestez Dan Leonard
2016-06-15 18:30 ` [PATCH 1/3] acpi: Export acpi_of_modalias equiv of of_modalias_node Crestez Dan Leonard
2016-06-16 8:04 ` Mika Westerberg
2016-06-15 18:30 ` Crestez Dan Leonard [this message]
2016-06-16 8:11 ` [PATCH 2/3] acpi i2c: Initialize info.type from of_compatible Mika Westerberg
2016-06-17 12:07 ` Crestez Dan Leonard
2016-06-17 12:19 ` Mika Westerberg
2016-06-15 18:30 ` [PATCH 3/3] acpi spi: Initialize modalias " Crestez Dan Leonard
2016-06-16 8:12 ` Mika Westerberg
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