nv-tegra-mirror/linux-nvgpu
1
0
Fork 0
mirror of git://nv-tegra.nvidia.com/linux-nvgpu.git synced 2025-12-23 01:50:07 +03:00
Code Issues Packages Projects Releases Wiki Activity

gpu: nvgpu: Skip reg read of gpc2clk

Browse Source 
Bug 200066741

As we are just getting out of reset and this reg is not
written before, so we dont stand the risk of loosing
any data

Change-Id: Ifc1bcaa3c224038e4e2a47882a4523f7633cb660
Signed-off-by: Supriya <ssharatkumar@nvidia.com>
Reviewed-on: http://git-master/r/715652
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
This commit is contained in:
Supriya
2015-03-10 13:57:49 +05:30
committed by Dan Willemsen
parent 81f5ffbfae
commit bb51cf9ec6
1 changed files with 4 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/gpu/nvgpu/gk20a/priv_ring_gk20a.c
View File

@@ -26,12 +26,14 @@
void gk20a_reset_priv_ring(struct gk20a *g) void gk20a_reset_priv_ring(struct gk20a *g)
{ {
u32 data; u32 data = 0;
if (tegra_platform_is_linsim()) if (tegra_platform_is_linsim())
return; return;
data = gk20a_readl(g, trim_sys_gpc2clk_out_r()); /* Skipping read and then writeback to this reg, as we are just getting
* out of reset, and before this call, the reg is not written to*/
data = set_field(data, data = set_field(data,
trim_sys_gpc2clk_out_bypdiv_m(), trim_sys_gpc2clk_out_bypdiv_m(),
trim_sys_gpc2clk_out_bypdiv_f(0)); trim_sys_gpc2clk_out_bypdiv_f(0));