On Mon, Jul 22, 2019 at 04:13:25PM -0700, Dhinakaran Pandiyan wrote:
A single 32-bit PSR2 training pattern field follows the sixteen element array of PSR table entries in the VBT spec. But, we incorrectly define this PSR2 field for each of the PSR table entries. As a result, the PSR1 training pattern duration for any panel_type != 0 will be parsed incorrectly. Secondly, PSR2 training pattern durations for VBTs with bdb version >= 226 will also be wrong.
Cc: Rodrigo Vivi rodrigo.vivi@intel.com Cc: José Roberto de Souza jose.souza@intel.com Cc: stable@vger.kernel.org Cc: stable@vger.kernel.org #v5.2 Fixes: 88a0d9606aff ("drm/i915/vbt: Parse and use the new field with PSR2 TP2/3 wakeup time") Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=111088 Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=204183 Signed-off-by: Dhinakaran Pandiyan dhinakaran.pandiyan@intel.com Reviewed-by: Ville Syrjälä ville.syrjala@linux.intel.com Reviewed-by: José Roberto de Souza jose.souza@intel.com Acked-by: Rodrigo Vivi rodrigo.vivi@intel.com Tested-by: François Guerraz kubrick@fgv6.net Signed-off-by: Rodrigo Vivi rodrigo.vivi@intel.com Link: https://patchwork.freedesktop.org/patch/msgid/20190717223451.2595-1-dhinakar... (cherry picked from commit b5ea9c9337007d6e700280c8a60b4e10d070fb53)
There is no such commit in Linus's kernel tree :(