arm64: ptm: ignore PTM config file register reading
authorChun XU <chunx@nvidia.com>
Fri, 13 Nov 2015 10:28:06 +0000 (18:28 +0800)
committermobile promotions <svcmobile_promotions@nvidia.com>
Thu, 19 Nov 2015 07:02:45 +0000 (23:02 -0800)
commit22d3e115c96cbed973e49ee7d28fd53289b3a936
tree8e47cb7207120213bb6b0dab33256a18ed752d0e
parentf56e4e87b6b962115895d18b5cabdf31593be6a1
arm64: ptm: ignore PTM config file register reading

Reading T210 A57 PTM registers causes kernel hang
when PTM has not been power.

This is a WAR.

Bug 200146743

Change-Id: I0c3d847c737eedfaacd600813a581c34bc819e51
Signed-off-by: Chun XU <chunx@nvidia.com>
Reviewed-on: http://git-master/r/833592
Reviewed-by: Allen Yu <alleny@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Hayden Du <haydend@nvidia.com>
drivers/platform/tegra/tegra_ptm_t210.c