diff options
| author | Rakesh Bodla <rbodla@nvidia.com> | 2013-05-21 12:24:41 +0530 |
|---|---|---|
| committer | Mandar Padmawar <mpadmawar@nvidia.com> | 2013-05-23 00:52:34 -0700 |
| commit | c2b7bf3f3a0414ef0216e822fa9f5205d5b3075d (patch) | |
| tree | 58f0e2203eca788b842b8cb43189840bfebe508d /drivers/usb | |
| parent | fd2289697553352c75838a35a8898a168de85bdb (diff) | |
usb: gadget: tegra: set cpu normal in work context
Once USB transfers are completed, set cpu frequency
to normal in work context.
Bug 1292315
Change-Id: I34e6f6d85f3be8be31e5d87a742894d0ca10f8bc
Signed-off-by: Rakesh Bodla <rbodla@nvidia.com>
Reviewed-on: http://git-master/r/231064
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Bitan Biswas <bbiswas@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Bo Yan <byan@nvidia.com>
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/gadget/tegra_udc.c | 25 |
1 files changed, 17 insertions, 8 deletions
diff --git a/drivers/usb/gadget/tegra_udc.c b/drivers/usb/gadget/tegra_udc.c index ab85a28d6cb4..27a1376eeaaf 100644 --- a/drivers/usb/gadget/tegra_udc.c +++ b/drivers/usb/gadget/tegra_udc.c @@ -104,7 +104,7 @@ static struct tegra_udc *the_udc; #ifdef CONFIG_TEGRA_GADGET_BOOST_CPU_FREQ static struct pm_qos_request boost_cpu_freq_req; static u32 ep_queue_request_count; - static u8 boost_cpufreq_work_flag; + static u8 boost_cpufreq_work_flag, set_cpufreq_normal_flag; static struct timer_list boost_timer; #endif @@ -2321,17 +2321,26 @@ static void tegra_udc_set_current_limit_work(struct work_struct *work) } #ifdef CONFIG_TEGRA_GADGET_BOOST_CPU_FREQ -void tegra_set_cpu_freq_normal(unsigned long data) +void tegra_udc_set_cpu_freq_normal(unsigned long data) { - pm_qos_update_request(&boost_cpu_freq_req, PM_QOS_DEFAULT_VALUE); - boost_cpufreq_work_flag = 1; - DBG("%s(%d) set CPU frequency to normal\n", __func__, __LINE__); + set_cpufreq_normal_flag = 1; + schedule_work(&the_udc->boost_cpufreq_work); } static void tegra_udc_boost_cpu_frequency_work(struct work_struct *work) { - /* If CPU frequency is not boosted earlier boost it, otherwise - * change timer expiry time to 2sec */ + if (set_cpufreq_normal_flag) { + pm_qos_update_request(&boost_cpu_freq_req, + PM_QOS_DEFAULT_VALUE); + boost_cpufreq_work_flag = 1; + set_cpufreq_normal_flag = 0; + DBG("%s(%d) set CPU frequency to normal\n", __func__, + __LINE__); + return ; + } + + /* If CPU frequency is not boosted earlier boost it, and modify + * timer expiry time to 2sec */ if (boost_cpufreq_work_flag) { pm_qos_update_request(&boost_cpu_freq_req, (s32)CONFIG_TEGRA_GADGET_BOOST_CPU_FREQ * 1000); @@ -2871,7 +2880,7 @@ static int __init tegra_udc_probe(struct platform_device *pdev) tegra_udc_boost_cpu_frequency_work); pm_qos_add_request(&boost_cpu_freq_req, PM_QOS_CPU_FREQ_MIN, PM_QOS_DEFAULT_VALUE); - setup_timer(&boost_timer, tegra_set_cpu_freq_normal, 0); + setup_timer(&boost_timer, tegra_udc_set_cpu_freq_normal, 0); #endif /* Create work for controlling clocks to the phy if otg is disabled */ |