Hi, > -----Original Message----- > From: Intel-gfx [mailto:intel-gfx-bounces@xxxxxxxxxxxxxxxxxxxxx] On Behalf > Of Shashank Sharma > Sent: tiistai 10. lokakuuta 2017 13.08 > To: intel-gfx@xxxxxxxxxxxxxxxxxxxxx > Subject: [PATCH v3 0/3] Various retries for LSPCON > > This patch series adds various retries and delays in DRM and I915 layer, to > handle some of the read failures while dealing with LSPCON devices. Should we have reference to fdo bugs? https://bugs.freedesktop.org/show_bug.cgi?id=102294 https://bugs.freedesktop.org/show_bug.cgi?id=102295 and what about this? https://bugs.freedesktop.org/show_bug.cgi?id=102359 > > LSPCON devices are sometimes slow to respond and the vendores expect us > to retry while probing the device. > > The typical scenarios are getting fixed / handled with this patch series are > look like this failure during LSPCON > suspend/resume: > [drm:drm_lspcon_get_mode] *ERROR* LSPCON read(0x80, 0x41) failed > [drm:lspcon_wait_mode [i915]] *ERROR* Error reading LSPCON mode > [drm:drm_lspcon_get_mode] *ERROR* LSPCON read(0x80, 0x41) failed > [drm:lspcon_change_mode.constprop.4 [i915]] *ERROR* Error reading > LSPCON mode [drm:lspcon_resume [i915]] *ERROR* LSPCON resume failed > Setting dangerous option reset - tainting kernel > > Shashank Sharma (3): > drm: Add retries for lspcon mode detection > drm/i915: Don't give up waiting on INVALID_MODE > drm/i915: Add retries for LSPCON detection > > drivers/gpu/drm/drm_dp_dual_mode_helper.c | 16 +++++++++++++--- > drivers/gpu/drm/i915/intel_lspcon.c | 22 +++++++++++++++------- > 2 files changed, 28 insertions(+), 10 deletions(-) > > -- > 2.7.4 Jani Saarinen Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
