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authorLinus Torvalds <torvalds@linux-foundation.org>2016-10-07 14:12:21 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2016-10-07 14:12:21 -0700
commit87840a2b7e048018d18d60bdac5c09224de85370 (patch)
tree87e9f8a2317e39358f5ea189d79ef2158de5faf8 /drivers/gpio
parent2ab704a47e0f27df758840a589aec3298dbb98dd (diff)
parent662786a5429c3a992c6f884a647ee32424822358 (diff)
Merge branch 'i2c/for-4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c updates from Wolfram Sang: "Here is the 4.9 pull request from I2C including: - centralized error messages when registering to the core - improved lockdep annotations to prevent false positives - DT support for muxes, gates, and arbitrators - bus speeds can now be obtained from ACPI - i2c-octeon got refactored and now supports ThunderX SoCs, too - i2c-tegra and i2c-designware got a bigger bunch of updates - a couple of standard driver fixes and improvements" * 'i2c/for-4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (71 commits) i2c: axxia: disable clks in case of failure in probe i2c: octeon: thunderx: Limit register access retries i2c: uniphier-f: fix misdetection of incomplete STOP condition gpio: pca953x: variable 'id' was used twice i2c: i801: Add support for Kaby Lake PCH-H gpio: pca953x: fix an incorrect lockdep warning i2c: add a warning to i2c_adapter_depth() lockdep: make MAX_LOCKDEP_SUBCLASSES unconditionally visible i2c: export i2c_adapter_depth() i2c: rk3x: Fix variable 'min_total_ns' unused warning i2c: rk3x: Fix sparse warning i2c / ACPI: Do not touch an I2C device if it belongs to another adapter i2c: octeon: Fix high-level controller status check i2c: octeon: Avoid sending STOP during recovery i2c: octeon: Fix set SCL recovery function i2c: rcar: add support for r8a7796 (R-Car M3-W) i2c: imx: make bus recovery through pinctrl optional i2c: meson: add gxbb compatible string i2c: uniphier-f: set the adapter to master mode when probing i2c: uniphier-f: avoid WARN_ON() of clk_disable() in failure path ...
Diffstat (limited to 'drivers/gpio')
-rw-r--r--drivers/gpio/gpio-pca953x.c16
1 files changed, 9 insertions, 7 deletions
diff --git a/drivers/gpio/gpio-pca953x.c b/drivers/gpio/gpio-pca953x.c
index 5d059866d17a..45c8817d068c 100644
--- a/drivers/gpio/gpio-pca953x.c
+++ b/drivers/gpio/gpio-pca953x.c
@@ -732,7 +732,7 @@ out:
static const struct of_device_id pca953x_dt_ids[];
static int pca953x_probe(struct i2c_client *client,
- const struct i2c_device_id *id)
+ const struct i2c_device_id *i2c_id)
{
struct pca953x_platform_data *pdata;
struct pca953x_chip *chip;
@@ -773,27 +773,29 @@ static int pca953x_probe(struct i2c_client *client,
}
chip->regulator = reg;
- if (id) {
- chip->driver_data = id->driver_data;
+ if (i2c_id) {
+ chip->driver_data = i2c_id->driver_data;
} else {
- const struct acpi_device_id *id;
+ const struct acpi_device_id *acpi_id;
const struct of_device_id *match;
match = of_match_device(pca953x_dt_ids, &client->dev);
if (match) {
chip->driver_data = (int)(uintptr_t)match->data;
} else {
- id = acpi_match_device(pca953x_acpi_ids, &client->dev);
- if (!id) {
+ acpi_id = acpi_match_device(pca953x_acpi_ids, &client->dev);
+ if (!acpi_id) {
ret = -ENODEV;
goto err_exit;
}
- chip->driver_data = id->driver_data;
+ chip->driver_data = acpi_id->driver_data;
}
}
mutex_init(&chip->i2c_lock);
+ lockdep_set_subclass(&chip->i2c_lock,
+ i2c_adapter_depth(client->adapter));
/* initialize cached registers from their original values.
* we can't share this chip with another i2c master.