diff options
| author | Srikanth Nori <srikanthn@nvidia.com> | 2012-07-02 17:35:38 -0700 |
|---|---|---|
| committer | Simone Willett <swillett@nvidia.com> | 2012-08-16 13:37:52 -0700 |
| commit | 43ecb3724fa90222dd6cd502aee422364b0c65cb (patch) | |
| tree | 39a1c589e7ec31c0124f1dbab151ae968802a91c /arch/arm/mach-tegra/tegra3_clocks.c | |
| parent | be3e9def273181d1b44c1891de8602faebd719a8 (diff) | |
ARM: tegra: clocks: Frequency stats for SCLK/CBUS
This adds a frequency histogram of the frequencies that SCLK
and CBUS clocks go to over time. Stats are presented in the
debugfs at /d/clock_stats/cbus and /d/clock_stats/sclk only if
debugfs is enabled in config
Change-Id: Icae83329612958d8ed4318b2e10c487683d9d734
Signed-off-by: Dan Willemsen <dwillemsen@nvidia.com>
Reviewed-on: http://git-master/r/118380
Reviewed-by: Wen Yi <wyi@nvidia.com>
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: Thomas Cherry <tcherry@nvidia.com>
Diffstat (limited to 'arch/arm/mach-tegra/tegra3_clocks.c')
| -rw-r--r-- | arch/arm/mach-tegra/tegra3_clocks.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/arch/arm/mach-tegra/tegra3_clocks.c b/arch/arm/mach-tegra/tegra3_clocks.c index 828a806ff99f..9793c7ab052b 100644 --- a/arch/arm/mach-tegra/tegra3_clocks.c +++ b/arch/arm/mach-tegra/tegra3_clocks.c @@ -4232,6 +4232,8 @@ static struct clk tegra_clk_emc_bridge = { .parent = &tegra_clk_emc, }; +static RAW_NOTIFIER_HEAD(cbus_rate_change_nh); + static struct clk tegra_clk_cbus = { .name = "cbus", .parent = &tegra_pll_c, @@ -4243,7 +4245,8 @@ static struct clk tegra_clk_cbus = { .shared_bus_backup = { .input = &tegra_pll_p, .value = 2, - } + }, + .rate_change_nh = &cbus_rate_change_nh, }; #define PERIPH_CLK(_name, _dev, _con, _clk_num, _reg, _max, _inputs, _flags) \ |