[Intel-gfx] [RFC v2 0/4] Crystal Cove PMIC based Panel and Backlight Control

[Shobhit Kumar]

Hi All
Please find modifed set of patches. Sending as a separate thread as initial
patches were a crude implementation to trigger discussion, but these have been 
tested and also do not need intel_soc_pmic_writeb/readb functionaly, but uses
the regmap interface as suggested by Jacob.

These patches implement a drm_panel as a platform driver for the mfd_cell device
declared in intel_soc_pmic_core.c. 

Still there are opens, where I need closure - 
1. Added a new drm_panel, but how to find the panel in lack of OF info. For now
   added a drm_panel function to find panel by name.
2. Backlight also needs similar pmic based control. Is it okay to add a backlight
   class driver also as part of this panel driver ?

For now I am doing Backlight Enable/Disable also during panel/enable as this will
at least save power. Backlight control will need a backlight class driver.

Regards
Shobhit

Shobhit Kumar (4):
  drm: Add support to find drm_panel by name
  mfd: Add a new cell device for panel controlled by crystal cove pmic
  drm/panel: Add new panel driver based on crystal cove pmic
  drm/i915: Enable DSI panel enable/disable based on PMIC

 drivers/gpu/drm/drm_panel.c                |  18 +++
 drivers/gpu/drm/i915/Kconfig               |   1 +
 drivers/gpu/drm/i915/intel_dsi.c           |  16 +++
 drivers/gpu/drm/i915/intel_dsi.h           |   6 +
 drivers/gpu/drm/i915/intel_dsi_panel_vbt.c |   1 +
 drivers/gpu/drm/panel/Kconfig              |   7 ++
 drivers/gpu/drm/panel/Makefile             |   1 +
 drivers/gpu/drm/panel/panel-crystalcove.c  | 191 +++++++++++++++++++++++++++++
 drivers/mfd/intel_soc_pmic_crc.c           |   3 +
 include/drm/drm_panel.h                    |   3 +
 10 files changed, 247 insertions(+)
 create mode 100644 drivers/gpu/drm/panel/panel-crystalcove.c

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1.9.1