lwn.git/drivers/w1/masters/w1-gpio.c, branch v4.8-rc3

W1: w1-gpio - switch to using dev_pm_ops

2015-10-18T04:45:05+00:00

Let's stop using legacy platform driver hooks for power management and switch to using the standard dev_pm_ops-based hooks. Also, instead of guarding PM methods with #ifdef CONFIG_PM annotate them as __maybe_unused as it provides better compile coverage. Signed-off-by: Dmitry Torokhov Signed-off-by: Greg Kroah-Hartman

w1: constify of_device_id array

2015-03-25T11:25:29+00:00

of_device_id is always used as const. (See driver.of_match_table and open firmware functions) Signed-off-by: Fabian Frederick Signed-off-by: Greg Kroah-Hartman

w1: masters: drop owner assignment from platform_drivers

2014-10-20T14:21:56+00:00

A platform_driver does not need to set an owner, it will be populated by the driver core. Signed-off-by: Wolfram Sang

w1-gpio: handle of_get_gpio() returning -EPROBE_DEFER better

2014-02-15T20:08:38+00:00

of_get_gpio() might return -EPROBE_DEFER meaning that the driver providing the gpio isn't ready yet. If that happens for the first gpio the resulting kernel output without this patch is: w1-gpio somename: Failed to parse DT platform somename: Driver w1-gpio requests probe deferral The first message is misleading and so is suppressed with this patch. Further if determining the gpio to switch the external pullup yields -EPROBE_DEFER this error should be passed back to the caller instead of just continuing without pullup. Signed-off-by: Uwe Kleine-König Signed-off-by: Greg Kroah-Hartman

drivers/w1/masters/w1-gpio.c: add strong pullup emulation

2014-01-24T00:37:04+00:00

Strong pullup is emulated by driving pin logic high after write command when using tri-state push-pull GPIO. Signed-off-by: Evgeny Boger Cc: Greg KH Acked-by: David Fries Acked-by: Evgeniy Polyakov Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

drivers/w1/masters/w1-gpio.c: use dev_get_platdata()

2013-11-15T00:32:21+00:00

Use the wrapper function for retrieving the platform data instead of accessing dev->platform_data directly. This is a cosmetic change to make the code simpler and enhance the readability. Signed-off-by: Jingoo Han Acked-by: Evgeniy Polyakov Cc: Greg KH Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

w1-gpio: Use devm_* functions

2013-10-29T23:58:18+00:00

Signed-off-by: Markus Pargmann Acked-by: Evgeniy Polyakov Signed-off-by: Greg Kroah-Hartman

w1-gpio: Detect of_gpio_error for first gpio

2013-10-29T23:58:18+00:00

The first DT gpio is necessary for this driver, but errors returned for of_get_gpio are ignored. This patch adds a return value check for the first of_get_gpio. Signed-off-by: Markus Pargmann Acked-by: Evgeniy Polyakov Signed-off-by: Greg Kroah-Hartman

w1-gpio: Let device core handle pinctrl

2013-05-21T17:07:54+00:00

Since commit ab78029 (drivers/pinctrl: grab default handles from device core) we can rely on device core for handling pinctrl, so remove devm_pinctrl_get_select_default() from the driver. Signed-off-by: Fabio Estevam Signed-off-by: Greg Kroah-Hartman

w1-gpio: fix unused variable warning

2013-03-12T23:20:46+00:00

Commit 8a1861d997 ("w1-gpio: Simplify & get rid of defines") removed the compile guards from the device-tree id table, thereby generating a warning when building without device-tree support. Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman