BMC/Intel-BMC/linux.git/drivers/gpu/drm/i915/intel_hotplug.c, branch dev-4.3

drm/i915: Call non-locking version of drm_kms_helper_poll_enable(), v2

2015-09-30T13:32:27+00:00

drm_kms_helper_poll_enable() is called from a context in intel_hpd_irq_storm_disable() where the the mode_config mutex is already locked. When this function was converted to lock this mutex in commit 8c4ccc4ab6f6 ("drm/probe-helper: Grab mode_config.mutex in poll_init/enable") a deadlock occurred. Call the newly implemented non-locking version of this function. Changes since v1: - use function name suffix '_locked' for the function that is to be called from a locked context. Signed-off-by: Egbert Eich Reviewed-by: Daniel Vetter Signed-off-by: Jani Nikula

drm/i915/skl: enable DDI-E hotplug

2015-08-26T07:24:25+00:00

v2: fix one error found by checkpath.pl v3: Add one ignored break for switch-case. DDI-E hotplug function doesn't work after updating drm-intel tree, I checked the code and found this missing which isn't the root cause for broke DDI-E hp. The broken DDI-E hp function is fixed by "Adding DDI_E power well domain". Signed-off-by: Xiong Zhang Reviewed-by: Rodrigo Vivi Tested-by: Timo Aaltonen Signed-off-by: Jani Nikula

drm/i915: don't use HPD_PORT_A as an alias for HPD_NONE

2015-07-22T08:44:51+00:00

Currently HPD_PORT_A is used as an alias for HPD_NONE to mean that the given port doesn't support long/short HPD pulse detection. SDVO and CRT ports are like this and for these ports we only want to know whether an hot plug event was detected on the corresponding pin. Since at least on BXT we need long/short pulse detection on PORT A as well (added by the next patch) remove this aliasing of HPD_PORT_A/HPD_NONE and let the return value of intel_hpd_pin_to_port() show whether long/short pulse detection is supported on the passed in pin. No functional change. v2: - rebase on top of -nightly (Daniel) - make the check for intel_hpd_pin_to_port() return value more readable (Sivakumar) Signed-off-by: Imre Deak Reviewed-by: Sonika Jindal Reviewed-by: Sivakumar Thulasimani Signed-off-by: Daniel Vetter

drm/i915: storm detection documentation update

2015-07-13T09:22:35+00:00

Update the hotplug documentation to explain that hotplug storm is not expected for Display port panels and hence is not handled in current code. v2: update the statements as recommended by Daniel Signed-off-by: Sivakumar Thulasimani Signed-off-by: Daniel Vetter

drm/i915/hotplug: document the hotplug handling in the driver

2015-07-06T09:35:16+00:00

Add an overview of the drm/i915 hotplug handling. Signed-off-by: Jani Nikula Signed-off-by: Daniel Vetter

drm/i915: move generic hotplug code into new intel_hotplug.c file

2015-06-22T13:03:42+00:00

We have enough generic hotplug functions sprinkled all over i915_irq.c to warrant moving them to a file of their own. This should further underline the distinction between generic code in the new file and platform specific hotplug and irq code that remains in i915_irq.c. Add new intel_hpd_init_work to keep work functions static, and rename get_port_from_pin to intel_hpd_pin_to_port while increasing its visibility, but keep everything else the same. Signed-off-by: Jani Nikula Signed-off-by: Daniel Vetter