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authorUtkarsh Patel <utkarsh.h.patel@intel.com>2020-09-07 17:21:52 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2020-09-07 17:05:02 +0200
commit7c6bbdf086ac7f1374bcf1ef0994b15109ecaf48 (patch)
tree507cd275697e98dc95bd191e16d92235c40f26b2 /Makefile
parent294955fd43dbf1e8f3a84cffa4797c6f22badc31 (diff)
usb: typec: intel_pmc_mux: Do not configure SBU and HSL Orientation in Alternate modes
According to the PMC Type C Subsystem (TCSS) Mux programming guide rev 0.7, bits 4 and 5 are reserved in Alternate modes. SBU Orientation and HSL Orientation needs to be configured only during initial cable detection in USB connect flow based on device property of "sbu-orientation" and "hsl-orientation". Configuring these reserved bits in the Alternate modes may result in delay in display link training or some unexpected behaviour. So do not configure them while issuing Alternate Mode requests. Fixes: ff4a30d5e243 ("usb: typec: mux: intel_pmc_mux: Support for static SBU/HSL orientation") Signed-off-by: Utkarsh Patel <utkarsh.h.patel@intel.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Link: https://lore.kernel.org/r/20200907142152.35678-3-heikki.krogerus@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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