This series sets up runtime PM for MDP5 based SoCs.
We have a top level MDSS device, which parents devices like MDP5, DSI, HDMI etc. The parent child relation between them establishes a similar relationship for their power domains too. In the HW (and the DT bindings), only MDSS has control over the power domain (i.e, the MDSS GDSC). In software, we do the same by assigning the GDSC to MDSS, and the children end up voting for the GDSC by calling the pm_runtime_get/put() API.
For this to work, we need to convert all the child drivers to DT. The patchset converts MDP5, DSI and HDMI to use runtime PM. The first 2 patches and the last patch are minor fixes not directly related to runtime PM.
Tested on DB410c and DB820c.
Archit Taneja (10): drm/msm/mdp5: Fix typo in encoder_enable path drm/msm/mdp5: Drop clock names with "_clk" suffix drm/msm/mdp5: Use runtime PM get/put API instead of toggling clocks drm/msm/hdmi: Set up runtime PM for HDMI drm/msm/dsi: Set up runtime PM for DSI drm/msm/dsi: Implement RPM suspend/resume callbacks drm/msm/mdp5: Don't use mode_set helper funcs for encoders and CRTCs drm/msm/mdp5: Write to SMP registers even if allocations don't change drm/msm/mdp5: Set up runtime PM for MDSS drm/msm/adreno: Prevent unclocked access when retrieving timestamps
drivers/gpu/drm/msm/adreno/adreno_gpu.c | 11 ++- drivers/gpu/drm/msm/dsi/dsi.c | 5 ++ drivers/gpu/drm/msm/dsi/dsi.h | 2 + drivers/gpu/drm/msm/dsi/dsi_host.c | 94 ++++++++++++++----------- drivers/gpu/drm/msm/dsi/phy/dsi_phy.c | 2 +- drivers/gpu/drm/msm/hdmi/hdmi.c | 2 + drivers/gpu/drm/msm/hdmi/hdmi_bridge.c | 4 ++ drivers/gpu/drm/msm/hdmi/hdmi_connector.c | 63 ++++++++++++----- drivers/gpu/drm/msm/mdp/mdp5/mdp5_cmd_encoder.c | 7 +- drivers/gpu/drm/msm/mdp/mdp5/mdp5_crtc.c | 25 ++++--- drivers/gpu/drm/msm/mdp/mdp5/mdp5_encoder.c | 14 ++-- drivers/gpu/drm/msm/mdp/mdp5/mdp5_irq.c | 27 ++++--- drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c | 63 ++++++++++++----- drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.h | 3 - drivers/gpu/drm/msm/mdp/mdp5/mdp5_mdss.c | 63 ++++++++++++++--- drivers/gpu/drm/msm/mdp/mdp5/mdp5_smp.c | 59 +++++++++++++--- drivers/gpu/drm/msm/msm_drv.c | 29 ++++++++ drivers/gpu/drm/msm/msm_kms.h | 2 + 18 files changed, 350 insertions(+), 125 deletions(-)