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author | Linus Torvalds <torvalds@linux-foundation.org> | 2013-02-24 20:00:58 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-02-24 20:00:58 -0800 |
commit | ab7826595e9ec51a51f622c5fc91e2f59440481a (patch) | |
tree | 34241b399fa7a12c260e06e6c1c31bc69d46e1e3 /drivers/mfd/max8925-i2c.c | |
parent | 21fbd5809ad126b949206d78e0a0e07ec872ea11 (diff) | |
parent | ff7109fa632654eaef657186f2942f5b679023d6 (diff) | |
download | op-kernel-dev-ab7826595e9ec51a51f622c5fc91e2f59440481a.zip op-kernel-dev-ab7826595e9ec51a51f622c5fc91e2f59440481a.tar.gz |
Merge tag 'mfd-3.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6
Pull MFS updates from Samuel Ortiz:
"This is the MFD pull request for the 3.9 merge window.
No new drivers this time, but a bunch of fairly big cleanups:
- Roger Quadros worked on a OMAP USBHS and TLL platform data
consolidation, OMAP5 support and clock management code cleanup.
- The first step of a major sync for the ab8500 driver from Lee
Jones. In particular, the debugfs and the sysct interfaces got
extended and improved.
- Peter Ujfalusi sent a nice patchset for cleaning and fixing the
twl-core driver, with a much needed module id lookup code
improvement.
- The regular wm5102 and arizona cleanups and fixes from Mark Brown.
- Laxman Dewangan extended the palmas APIs in order to implement the
palmas GPIO and rt drivers.
- Laxman also added DT support for the tps65090 driver.
- The Intel SCH and ICH drivers got a couple fixes from Aaron Sierra
and Darren Hart.
- Linus Walleij patchset for the ab8500 driver allowed ab8500 and
ab9540 based devices to switch to the new abx500 pin-ctrl driver.
- The max8925 now has device tree and irqdomain support thanks to
Qing Xu.
- The recently added rtsx driver got a few cleanups and fixes for a
better card detection code path and now also supports the RTS5227
chipset, thanks to Wei Wang and Roger Tseng."
* tag 'mfd-3.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6: (109 commits)
mfd: lpc_ich: Use devres API to allocate private data
mfd: lpc_ich: Add Device IDs for Intel Wellsburg PCH
mfd: lpc_sch: Accomodate partial population of the MFD devices
mfd: da9052-i2c: Staticize da9052_i2c_fix()
mfd: syscon: Fix sparse warning
mfd: twl-core: Fix kernel panic on boot
mfd: rtsx: Fix issue that booting OS with SD card inserted
mfd: ab8500: Fix compile error
mfd: Add missing GENERIC_HARDIRQS dependecies
Documentation: Add docs for max8925 dt
mfd: max8925: Add dts
mfd: max8925: Support dt for backlight
mfd: max8925: Fix onkey driver irq base
mfd: max8925: Fix mfd device register failure
mfd: max8925: Add irqdomain for dt
mfd: vexpress: Allow vexpress-sysreg to self-initialise
mfd: rtsx: Support RTS5227
mfd: rtsx: Implement driving adjustment to device-dependent callbacks
mfd: vexpress: Add pseudo-GPIO based LEDs
mfd: ab8500: Rename ab8500 to abx500 for hwmon driver
...
Diffstat (limited to 'drivers/mfd/max8925-i2c.c')
-rw-r--r-- | drivers/mfd/max8925-i2c.c | 36 |
1 files changed, 33 insertions, 3 deletions
diff --git a/drivers/mfd/max8925-i2c.c b/drivers/mfd/max8925-i2c.c index 00b5b45..92bbebd 100644 --- a/drivers/mfd/max8925-i2c.c +++ b/drivers/mfd/max8925-i2c.c @@ -135,13 +135,37 @@ static const struct i2c_device_id max8925_id_table[] = { }; MODULE_DEVICE_TABLE(i2c, max8925_id_table); +static int max8925_dt_init(struct device_node *np, struct device *dev, + struct max8925_platform_data *pdata) +{ + int ret; + + ret = of_property_read_u32(np, "maxim,tsc-irq", &pdata->tsc_irq); + if (ret) { + dev_err(dev, "Not found maxim,tsc-irq property\n"); + return -EINVAL; + } + return 0; +} + static int max8925_probe(struct i2c_client *client, const struct i2c_device_id *id) { struct max8925_platform_data *pdata = client->dev.platform_data; static struct max8925_chip *chip; - - if (!pdata) { + struct device_node *node = client->dev.of_node; + + if (node && !pdata) { + /* parse DT to get platform data */ + pdata = devm_kzalloc(&client->dev, + sizeof(struct max8925_platform_data), + GFP_KERNEL); + if (!pdata) + return -ENOMEM; + + if (max8925_dt_init(node, &client->dev, pdata)) + return -EINVAL; + } else if (!pdata) { pr_info("%s: platform data is missing\n", __func__); return -EINVAL; } @@ -203,11 +227,18 @@ static int max8925_resume(struct device *dev) static SIMPLE_DEV_PM_OPS(max8925_pm_ops, max8925_suspend, max8925_resume); +static const struct of_device_id max8925_dt_ids[] = { + { .compatible = "maxim,max8925", }, + {}, +}; +MODULE_DEVICE_TABLE(of, max8925_dt_ids); + static struct i2c_driver max8925_driver = { .driver = { .name = "max8925", .owner = THIS_MODULE, .pm = &max8925_pm_ops, + .of_match_table = of_match_ptr(max8925_dt_ids), }, .probe = max8925_probe, .remove = max8925_remove, @@ -217,7 +248,6 @@ static struct i2c_driver max8925_driver = { static int __init max8925_i2c_init(void) { int ret; - ret = i2c_add_driver(&max8925_driver); if (ret != 0) pr_err("Failed to register MAX8925 I2C driver: %d\n", ret); |