diff options
| author | Sivaram Nair <sivaramn@nvidia.com> | 2013-05-30 14:22:57 +0300 |
|---|---|---|
| committer | Dan Willemsen <dwillemsen@nvidia.com> | 2013-09-14 13:16:47 -0700 |
| commit | b9d8a18c7467ce6787c4229b4b61706465d4eee9 (patch) | |
| tree | 7d4a78b20553ee0f44a4c10b2c2f2326a8d4c560 /drivers/edp | |
| parent | 0da709ee9988435b4104898e94d65708404d4458 (diff) | |
EDP: tegra: rebase core client states on gain
The core client E-states are scaled down proportional to the gain
factor. This will reduce the difference between an available budget and
AP+DRAM EDP table entries.
Bug 1266730
Change-Id: Ie68d3a71e320433b2096e3a5d40c8bb1185bae4f
Signed-off-by: Sivaram Nair <sivaramn@nvidia.com>
Reviewed-on: http://git-master/r/234947
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Juha Tukkinen <jtukkinen@nvidia.com>
Diffstat (limited to 'drivers/edp')
| -rw-r--r-- | drivers/edp/tegra_core.c | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/drivers/edp/tegra_core.c b/drivers/edp/tegra_core.c index 33f8661d82fb..d8e99b0bf07f 100644 --- a/drivers/edp/tegra_core.c +++ b/drivers/edp/tegra_core.c @@ -400,6 +400,13 @@ static void register_loan(void) WARN_ON(r); } +/* Power without gain */ +static unsigned int to_base_power(unsigned int power, + struct tegra_sysedp_platform_data *pdata) +{ + return (power * 100 + pdata->core_gain - 1) / pdata->core_gain; +} + static unsigned int get_num_states( struct tegra_sysedp_platform_data *pdata) { @@ -428,16 +435,19 @@ static void get_states(struct tegra_sysedp_platform_data *pdata, if (pdata->corecap[i].power == power) continue; - power = pdata->corecap[i].power; + power = to_base_power(pdata->corecap[i].power, pdata); states[num - e0i - 1] = power; e0i++; } } static unsigned int initial_req(struct edp_client *client, - unsigned int watts) + struct tegra_sysedp_platform_data *pdata) { int i; + unsigned int watts; + + watts = to_base_power(pdata->init_req_watts, pdata); for (i = 0; i < client->num_states; i++) { if (client->states[i] == watts) @@ -478,7 +488,7 @@ static int init_client(struct tegra_sysedp_platform_data *pdata) if (r) goto fail; - ei = initial_req(&core_client, pdata->init_req_watts); + ei = initial_req(&core_client, pdata); r = edp_update_client_request(&core_client, ei, &core_state); if (r) return r; |