kernel.git/drivers/media/cec, branch linux-4.13.y

media: cec: Respond to unregistered initiators, when applicable

2017-10-27T08:39:12Z

commit 845d6524d69b40bd6abd61dc1264a8657159aa55 upstream. Running CEC 1.4 compliance test we get the following error on test 11.1.6.2: "ERROR: The DUT did not broadcast a message to the unregistered device." Fix this by letting GIVE_PHYSICAL_ADDR message respond to unregistered device. Also, GIVE_DEVICE_VENDOR_ID and GIVE_FEATURES fall in the same category so, respond also to these messages. With this fix we pass CEC 1.4 official compliance. Signed-off-by: Jose Abreu Cc: Joao Pinto Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab Signed-off-by: Greg Kroah-Hartman

media: cec-notifier: small improvements

2017-07-26T09:46:44Z

Allow calling cec_notifier_set_phys_addr and cec_notifier_set_phys_addr_from_edid with a NULL notifier, in which case these functions do nothing. Add a cec_notifier_phys_addr_invalidate helper function (the notifier equivalent of cec_phys_addr_invalidate). These changes simplify drm CEC driver support. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

media: cec: cec_transmit_attempt_done: ignore CEC_TX_STATUS_MAX_RETRIES

2017-07-26T09:46:43Z

The switch in cec_transmit_attempt_done() should ignore the CEC_TX_STATUS_MAX_RETRIES status bit. Calling this function with e.g. CEC_TX_STATUS_NACK | CEC_TX_STATUS_MAX_RETRIES is perfectly legal and should not trigger the WARN(1). Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

Merge tag 'v4.12-rc6' into patchwork

2017-06-20T11:51:56Z

Linux 4.12-rc6 * tag 'v4.12-rc6': (813 commits) Linux 4.12-rc6 mm: larger stack guard gap, between vmas virtio_balloon: disable VIOMMU support mm: correct the comment when reclaimed pages exceed the scanned pages userfaultfd: shmem: handle coredumping in handle_userfault() mm: numa: avoid waiting on freed migrated pages swap: cond_resched in swap_cgroup_prepare() mm/memory-failure.c: use compound_head() flags for huge pages perf unwind: Report module before querying isactivation in dwfl unwind fs: pass on flags in compat_writev objtool: Add fortify_panic as __noreturn function powerpc/debug: Add missing warn flag to WARN_ON's non-builtin path USB: gadgetfs, dummy-hcd, net2280: fix locking for callbacks drm: mxsfb_crtc: Reset the eLCDIF controller drm/mgag200: Fix to always set HiPri for G200e4 V2 i2c: ismt: fix wrong device address when unmap the data buffer i2c: rcar: use correct length when unmapping DMA powerpc/xive: Fix offset for store EOI MMIOs drm/tegra: Correct idr_alloc() minimum id drm/tegra: Fix lockup on a use of staging API ... Signed-off-by: Mauro Carvalho Chehab

[media] cec: add CEC_CAP_NEEDS_HPD

2017-06-20T09:54:34Z

Add a new capability CEC_CAP_NEEDS_HPD. If this capability is set then the hardware can only use CEC if the HDMI Hotplug Detect pin is high. Such hardware cannot handle the corner case in the CEC specification where it is possible to transmit messages even if no hotplug signal is present (needed for some displays that turn off the HPD when in standby, but still have CEC enabled). Typically hardware that needs this capability have the HPD wired to the CEC block, often to a 'power' or 'active' pin. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

[media] cec: add cec_transmit_attempt_done helper function

2017-06-20T09:52:33Z

A simpler variant of cec_transmit_done to be used where the HW does just a single attempt at a transmit. So if the status indicates an error, then the corresponding error count will always be 1 and this function figures that out based on the status argument. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

[media] cec: add cec_s_phys_addr_from_edid helper function

2017-06-20T09:51:21Z

This function simplifies the integration of CEC in DRM drivers. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

[media] cec: race fix: don't return -ENONET in cec_receive()

2017-06-08T10:36:36Z

When calling CEC_RECEIVE do not check if the adapter is configured. Typically CEC_RECEIVE is called after a select() and if that indicates that there are messages in the receive queue, then you should always be able to dequeue a message. The race condition here is that a message has been received and is queued, so select() tells userspace that a message is available. But before the application calls CEC_RECEIVE the adapter is unconfigured (e.g. the HDMI cable is removed). Now select will always report that there is a message, but calling CEC_RECEIVE will always return -ENONET because the adapter is no longer configured and so will never actually dequeue the message. There is really no need for this check, and in fact the ENONET error code was never documented for CEC_RECEIVE. This may have been a left-over of old code that was never updated. Signed-off-by: Hans Verkuil Cc: # for v4.10 and up Signed-off-by: Mauro Carvalho Chehab

[media] cec: improve debug messages

2017-06-07T12:29:08Z

- use __func__ instead of writing the full function name - drop debug message in cec_config_log_addr since the same information will be reported later - use debug level 1 for errors and infrequent events, use level 2 for debugging CEC message traffic - log when a transmit is retried, very useful to know when debugging - debug messages now all start with lower case Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

Merge tag 'media/v4.12-2' into patchwork

2017-06-07T10:50:49Z

media fixes for v4.12-rc4 * tag 'media/v4.12-2': (598 commits) [media] rc-core: race condition during ir_raw_event_register() [media] cec: drop MEDIA_CEC_DEBUG [media] cec: rename MEDIA_CEC_NOTIFIER to CEC_NOTIFIER [media] cec: select CEC_CORE instead of depend on it [media] rainshadow-cec: ensure exit_loop is intialized [media] atomisp: don't treat warnings as errors Linux 4.12-rc3 x86/ftrace: Make sure that ftrace trampolines are not RWX x86/mm/ftrace: Do not bug in early boot on irqs_disabled in cpu_flush_range() selftests/ftrace: Add a testcase for many kprobe events kprobes/x86: Fix to set RWX bits correctly before releasing trampoline ftrace: Fix memory leak in ftrace_graph_release() ipv4: add reference counting to metrics net: ethernet: ax88796: don't call free_irq without request_irq first ip6_tunnel, ip6_gre: fix setting of DSCP on encapsulated packets sctp: fix ICMP processing if skb is non-linear net: llc: add lock_sock in llc_ui_bind to avoid a race condition PCI/msi: fix the pci_alloc_irq_vectors_affinity stub blk-mq: Only register debugfs attributes for blk-mq queues x86/timers: Move simple_udelay_calibration past init_hypervisor_platform ... Signed-off-by: Mauro Carvalho Chehab