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media: cec: add debug_phys_addr module option

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If debug_phys_addr is set, then CEC_CAP_PHYS_ADDR is added to the CEC
adapter capabilities.

This allows for testing CEC even if the physical address isn't set. This
makes it possible to connect two HDMI outputs together and still use CEC.
Very useful for testing CEC if you don't have access to an HDMI receiver
under linux.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
This commit is contained in:
Hans Verkuil 2018-10-17 07:05:41 -04:00 committed by Mauro Carvalho Chehab
parent 7f02ac77c7
commit db07c5ca55
1 changed files with 6 additions and 0 deletions
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6
drivers/media/cec/cec-core.c
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@ -24,6 +24,10 @@ int cec_debug;
module_param_named(debug, cec_debug, int, 0644);
MODULE_PARM_DESC(debug, "debug level (0-2)");
static bool debug_phys_addr;
module_param(debug_phys_addr, bool, 0644);
MODULE_PARM_DESC(debug_phys_addr, "add CEC_CAP_PHYS_ADDR if set");
static dev_t cec_dev_t;
/* Active devices */
@ -270,6 +274,8 @@ struct cec_adapter *cec_allocate_adapter(const struct cec_adap_ops *ops,
adap->log_addrs.cec_version = CEC_OP_CEC_VERSION_2_0;
adap->log_addrs.vendor_id = CEC_VENDOR_ID_NONE;
adap->capabilities = caps;
if (debug_phys_addr)
adap->capabilities |= CEC_CAP_PHYS_ADDR;
adap->needs_hpd = caps & CEC_CAP_NEEDS_HPD;
adap->available_log_addrs = available_las;
adap->sequence = 0;