diff options
| author | Petr Benes <petr.benes@ysoft.com> | 2022-10-04 17:39:20 +0200 |
|---|---|---|
| committer | Shawn Guo <shawnguo@kernel.org> | 2022-10-29 16:26:31 +0800 |
| commit | 5e67d47d0b010f0704aca469d6d27637b1dcb2ce (patch) | |
| tree | 6b078313a04a4f786744456876236a2c7bd6de16 /drivers/usb/cdns3/cdns3-ti.c | |
| parent | bb5ad73941dc3f4e3c2241348f385da6501d50ea (diff) | |
ARM: dts: imx6dl-yapp4: Do not allow PM to switch PU regulator off on Q/QP
Fix our design flaw in supply voltage distribution on the Quad and QuadPlus
based boards.
The problem is that we supply the SoC cache (VDD_CACHE_CAP) from VDD_PU
instead of VDD_SOC. The VDD_PU internal regulator can be disabled by PM
if VPU or GPU is not used. If that happens the system freezes. To prevent
that configure the reg_pu regulator to be always on.
Fixes: 0de4ab81ab26 ("ARM: dts: imx6dl-yapp4: Add Y Soft IOTA Crux/Crux+ board")
Cc: petrben@gmail.com
Cc: stable@vger.kernel.org
Signed-off-by: Petr Benes <petr.benes@ysoft.com>
Signed-off-by: Michal Vokáč <michal.vokac@ysoft.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Diffstat (limited to 'drivers/usb/cdns3/cdns3-ti.c')
0 files changed, 0 insertions, 0 deletions