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author | Linus Torvalds <torvalds@linux-foundation.org> | 2013-11-18 15:50:07 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-11-18 15:50:07 -0800 |
commit | 13509c3a9d20a9df93dc9b944e8bd20fe1b454a7 (patch) | |
tree | d7a97d1d10e88bcb93852cb0143a000710e9e246 /drivers/i2c/i2c-core.c | |
parent | 1ea406c0e08c717241275064046d29b5bac1b1db (diff) | |
parent | cfff1f4a9367bfe0d88413e8807f8369e9564729 (diff) | |
download | linux-stable-13509c3a9d20a9df93dc9b944e8bd20fe1b454a7.tar.gz linux-stable-13509c3a9d20a9df93dc9b944e8bd20fe1b454a7.tar.bz2 linux-stable-13509c3a9d20a9df93dc9b944e8bd20fe1b454a7.zip |
Merge branch 'i2c/for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c changes from Wolfram Sang:
- new drivers for exynos5, bcm kona, and st micro
- bigger overhauls for drivers mxs and rcar
- typical driver bugfixes, cleanups, improvements
- got rid of the superfluous 'driver' member in i2c_client struct This
touches a few drivers in other subsystems. All acked.
* 'i2c/for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (38 commits)
i2c: bcm-kona: fix error return code in bcm_kona_i2c_probe()
i2c: i2c-eg20t: do not print error message in syslog if no ACK received
i2c: bcm-kona: Introduce Broadcom I2C Driver
i2c: cbus-gpio: Fix device tree binding
i2c: wmt: add missing clk_disable_unprepare() on error
i2c: designware: add new ACPI IDs
i2c: i801: Add Device IDs for Intel Wildcat Point-LP PCH
i2c: exynos5: Remove incorrect clk_disable_unprepare
i2c: i2c-st: Add ST I2C controller
i2c: exynos5: add High Speed I2C controller driver
i2c: rcar: fixup rcar type naming
i2c: scmi: remove some bogus NULL checks
i2c: sh_mobile & rcar: Enable the driver on all ARM platforms
i2c: sh_mobile: Convert to clk_prepare/unprepare
i2c: mux: gpio: use reg value for i2c_add_mux_adapter
i2c: mux: gpio: use gpio_set_value_cansleep()
i2c: Include linux/of.h header
i2c: mxs: Fix PIO mode on i.MX23
i2c: mxs: Rework the PIO mode operation
i2c: mxs: distinguish i.MX23 and i.MX28 based I2C controller
...
Diffstat (limited to 'drivers/i2c/i2c-core.c')
-rw-r--r-- | drivers/i2c/i2c-core.c | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c index 75ba8608383e..5923cfa390c8 100644 --- a/drivers/i2c/i2c-core.c +++ b/drivers/i2c/i2c-core.c @@ -248,7 +248,7 @@ static int i2c_device_probe(struct device *dev) driver = to_i2c_driver(dev->driver); if (!driver->probe || !driver->id_table) return -ENODEV; - client->driver = driver; + if (!device_can_wakeup(&client->dev)) device_init_wakeup(&client->dev, client->flags & I2C_CLIENT_WAKE); @@ -257,7 +257,6 @@ static int i2c_device_probe(struct device *dev) acpi_dev_pm_attach(&client->dev, true); status = driver->probe(client, i2c_match_id(driver->id_table, client)); if (status) { - client->driver = NULL; i2c_set_clientdata(client, NULL); acpi_dev_pm_detach(&client->dev, true); } @@ -281,10 +280,8 @@ static int i2c_device_remove(struct device *dev) dev->driver = NULL; status = 0; } - if (status == 0) { - client->driver = NULL; + if (status == 0) i2c_set_clientdata(client, NULL); - } acpi_dev_pm_detach(&client->dev, true); return status; } @@ -1614,9 +1611,14 @@ static int i2c_cmd(struct device *dev, void *_arg) { struct i2c_client *client = i2c_verify_client(dev); struct i2c_cmd_arg *arg = _arg; + struct i2c_driver *driver; + + if (!client || !client->dev.driver) + return 0; - if (client && client->driver && client->driver->command) - client->driver->command(client, arg->cmd, arg->arg); + driver = to_i2c_driver(client->dev.driver); + if (driver->command) + driver->command(client, arg->cmd, arg->arg); return 0; } |