[PATCH 0/2] drm/msm: Fixes for issues seen on DB410c

Archit Taneja architt at codeaurora.org
Tue Oct 25 06:47:58 UTC 2016


The ADV7533 driver and DT bindings for MDSS hardware are both available
in 4.9, which is sufficient to boot with HDMI display on DB410c.

With the drm/msm and ADV7533 enabled, the system hangs during boot.
One reason is that the PLL driver tries to access registers without
the necessary interface clocks enabled. The other reason is a
deadlock caused by calling drm_hpd_helper_irq_event in a context
that might already hold drm_device's mode_config.mutex.

Archit Taneja (2):
  drm/msm/dsi: Queue HPD helper work in attach/detach callbacks
  drm/msm: Don't provide 'is_enabled' PLL clk_ops

 drivers/gpu/drm/msm/dsi/dsi_host.c              | 14 ++++++++++++--
 drivers/gpu/drm/msm/dsi/pll/dsi_pll_28nm.c      | 10 ----------
 drivers/gpu/drm/msm/dsi/pll/dsi_pll_28nm_8960.c | 10 ----------
 drivers/gpu/drm/msm/hdmi/hdmi_phy_8996.c        | 13 -------------
 4 files changed, 12 insertions(+), 35 deletions(-)

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