kernel/linux.git/drivers/gpu/drm/i2c, branch v4.18.18

drm/i2c: tda9950: set MAX_RETRIES for errors only

2018-11-04T13:51:40+00:00

[ Upstream commit e0dccce1193f87597548d0db6ecc942fb92c04cd ] The CEC_TX_STATUS_MAX_RETRIES should be set for errors only to prevent the CEC framework from retrying the transmit. If the transmit was successful, then don't set this flag. Found by running 'cec-compliance -A' on a beaglebone box. Signed-off-by: Hans Verkuil Signed-off-by: Russell King Signed-off-by: Sasha Levin

drm/i2c: tda9950: fix timeout counter check

2018-11-04T13:51:40+00:00

[ Upstream commit d98627d1360d55e3b28f702caca8b6342c4a4e45 ] Currently the check to see if the timeout has reached zero is incorrect and the check is instead checking if the timeout is non-zero and not zero, hence it will break out of the loop on the first iteration and the msleep is never executed. Fix this by breaking from the loop when timeout is zero. Detected by CoverityScan, CID#1469404 ("Logically Dead Code") Fixes: f0316f93897c ("drm/i2c: tda9950: add CEC driver") Signed-off-by: Colin Ian King Signed-off-by: Russell King Signed-off-by: Sasha Levin

Merge branch 'drm-tda998x-devel' of git://git.armlinux.org.uk/~rmk/linux-arm into drm-next

2018-05-22T00:20:45+00:00

Please incorporate support for TDA998x I2C driver CEC Signed-off-by: Dave Airlie Link: https://patchwork.freedesktop.org/patch/msgid/20180424095456.GA32460@rmk-PC.armlinux.org.uk

drm/i2c: tda998x: fix mode_valid's return type

2018-04-25T07:38:57+00:00

The method struct drm_connector_helper_funcs::mode_valid is defined as returning an 'enum drm_mode_status' but the driver implementation for this method uses an 'int' for it. Fix this by using 'enum drm_mode_status' in the driver too. Signed-off-by: Luc Van Oostenryck Signed-off-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/20180424131522.2460-1-luc.vanoostenryck@gmail.com

drm/i2c: tda998x: add CEC support

2018-04-24T09:44:32+00:00

The TDA998x is a HDMI transmitter with a TDA9950 CEC engine integrated onto the same die. Add support for the TDA9950 CEC engine to the TDA998x driver. Reviewed-by: Hans Verkuil Signed-off-by: Russell King

drm/i2c: tda9950: add CEC driver

2018-04-24T09:44:25+00:00

Add a CEC driver for the TDA9950, which is a stand-alone I2C CEC device, but is also integrated into HDMI transceivers such as the TDA9989 and TDA19989. The TDA9950 contains a command processor which handles retransmissions and the low level bus protocol. The driver just has to read and write the messages, and handle error conditions. Reviewed-by: Hans Verkuil Signed-off-by: Russell King

drm/i2c: tda998x: always disable and clear interrupts at probe

2018-04-03T11:21:54+00:00

Always disable and clear interrupts at probe time to ensure that the TDA998x is in a sane state. This ensures that the interrupt line, which is also the CEC clock calibration signal, is always deasserted. Acked-by: Hans Verkuil Signed-off-by: Russell King

drm/i2c: tda998x: move CEC device initialisation later

2018-04-03T11:21:54+00:00

We no longer use the CEC client to access the CEC part itself, so we can move this later in the initialisation sequence. Acked-by: Hans Verkuil Signed-off-by: Russell King

drm/i2c: tda998x: fix error cleanup paths

2018-04-03T11:21:54+00:00

If tda998x_get_audio_ports() fails, and we requested the interrupt, we fail to free the interrupt before returning failure. Rework the failure cleanup code and exit paths so that we always clean up properly after an error, and always propagate the error code. Acked-by: Hans Verkuil Signed-off-by: Russell King

drm/i2c: tda998x: move mutex/waitqueue/timer/work init early

2018-04-03T11:21:54+00:00

Move the mutex, waitqueue, timer and detect work initialisation early in the driver's initialisation, rather than being after we've registered the CEC device. Acked-by: Hans Verkuil Signed-off-by: Russell King