Evolution-X-Devices/kernel_oneplus_sm8250
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

clk: add bus voting to rate_get, rate_set, enable_set debug functions

Browse Source 
In addition to voting bandwidth for clk_summary, clk_show and
clk_print_reg, also add votes for clock debug rate_set, rate_get and
enable_set to allow access to the config space of multimedia
clock controllers including display, camera, and video.

Change-Id: Id3e56c80cc14c96b58c2c10dc713f0af056c790c
Signed-off-by: David Dai <daidavid1@codeaurora.org>
This commit is contained in:
David Dai
2019-04-08 14:59:45 -07:00
committed by Gerrit - the friendly Code Review server
parent 25518a1eb2
commit 0d8060cd6b
1 changed files with 24 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

24
drivers/clk/clk.c
View File

@@ -3404,11 +3404,19 @@ static int clock_debug_rate_set(void *data, u64 val)
struct clk_core *core = data;
int ret;
clk_prepare_lock();
if (core->ops->bus_vote)
core->ops->bus_vote(core->hw, true);
ret = clk_set_rate(core->hw->clk, val);
if (ret)
pr_err("clk_set_rate(%lu) failed (%d)\n",
(unsigned long)val, ret);
if (core->ops->bus_vote)
core->ops->bus_vote(core->hw, false);
clk_prepare_unlock();
return ret;
}
@@ -3416,8 +3424,16 @@ static int clock_debug_rate_get(void *data, u64 *val)
{
struct clk_core *core = data;
clk_prepare_lock();
if (core->ops->bus_vote)
core->ops->bus_vote(core->hw, true);
*val = clk_get_rate(core->hw->clk);
if (core->ops->bus_vote)
core->ops->bus_vote(core->hw, false);
clk_prepare_unlock();
return 0;
}
@@ -3446,11 +3462,19 @@ static int clock_debug_enable_set(void *data, u64 val)
struct clk_core *core = data;
int rc = 0;
clk_prepare_lock();
if (core->ops->bus_vote)
core->ops->bus_vote(core->hw, true);
if (val)
rc = clk_prepare_enable(core->hw->clk);
else
clk_disable_unprepare(core->hw->clk);
if (core->ops->bus_vote)
core->ops->bus_vote(core->hw, false);
clk_prepare_unlock();
return rc;
}