[v1,0/2] dw-mipi-dsi: add power on & off optional phy ops and update stm

Message

Yannick FERTRE May 27, 2019, 10:21 a.m. UTC

These patches fix a bug concerning an access issue to display controler (ltdc)
registers.
If the physical layer of the DSI is started too early then the fifo DSI are full
very quickly which implies ltdc register's access hang up. To avoid this
problem, it is necessary to start the DSI physical layer only when the bridge
is enable.

Yannick Fertré (2):
  drm/bridge/synopsys: dsi: add power on/off optional phy ops
  drm/stm: dsi: add power on/off phy ops

 drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c |  8 ++++++++
 drivers/gpu/drm/stm/dw_mipi_dsi-stm.c         | 21 ++++++++++++++++++++-
 include/drm/bridge/dw_mipi_dsi.h              |  2 ++
 3 files changed, 30 insertions(+), 1 deletion(-)

--
2.7.4

Comments

Andrzej Hajda June 12, 2019, 7:18 a.m. UTC | #1

On 27.05.2019 12:21, Yannick Fertré wrote:
> These patches fix a bug concerning an access issue to display controler (ltdc)
> registers.
> If the physical layer of the DSI is started too early then the fifo DSI are full
> very quickly which implies ltdc register's access hang up. To avoid this
> problem, it is necessary to start the DSI physical layer only when the bridge
> is enable.
>
> Yannick Fertré (2):
>   drm/bridge/synopsys: dsi: add power on/off optional phy ops
>   drm/stm: dsi: add power on/off phy ops
>
>  drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c |  8 ++++++++
>  drivers/gpu/drm/stm/dw_mipi_dsi-stm.c         | 21 ++++++++++++++++++++-
>  include/drm/bridge/dw_mipi_dsi.h              |  2 ++
>  3 files changed, 30 insertions(+), 1 deletion(-)
>
> --
> 2.7.4
>
>
>
Queued both patches to drm-misc-next.

--
Regards
Andrzej