Reading the hpd or 5v gpios is something that can sleep, so rework
the code to allow this.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Ensure that the interrupt function names clearly state for which
gpio they are (cec/hpd/5v). No functional changes.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Having cec.h include linux/debugfs.h leads to all users of all cec
headers include and depend on debugfs.h and its dependencies for no
reason. Drop the include from cec.h, and include debugfs.h and
seq_file.h where needed.
Sort all the modified include lists while at it.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
The old hans.verkuil@cisco.com email address was discontinued years ago.
Replace it with the correct hansverk@cisco.com email.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
After commit 0edb555a65 ("platform: Make platform_driver::remove()
return void") .remove() is (again) the right callback to implement for
platform drivers.
Convert all platform drivers below drivers/media to use .remove(), with
the eventual goal to drop struct platform_driver::remove_new(). As
.remove() and .remove_new() have the same prototypes, conversion is done
by just changing the structure member name in the driver initializer.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Since the CEC pin framework now keeps track of the interrupt
and calls disable_irq when the kthread stops, there is no
longer any need for the cec-gpio driver to do this in the
free callback. So drop this code.
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Use IRQF_NO_AUTOEN rather than manually disabling the requested
interrupt.
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
gpiod_get_value() can return negative values if an error occurs.
In several places this error code was ignored.
Ensure that errors codes are handled correctly throughout the CEC
pin framework and CEC pin drivers.
The return code of the cec_pin_ops read() callback had to be changed
from 'bool' to 'int', which mean the prototype of that callback in the
sun4i drm driver also had to be changed.
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
As CEC support doesn't depend on MEDIA_SUPPORT, let's
place the platform drivers outside the media menu.
As a side effect, instead of depends on PCI, seco driver
can select it (and DMI).
Acked-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
