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Linux_SDK_V1.4.2

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Signed-off-by: thead_admin <occ_thead@service.alibaba.com>
This commit is contained in:
thead_admin
2023-12-24 02:32:32 +00:00
committed by Han Gao/Revy/Rabenda
parent e17ac7bab2
commit d4c68ef2c1
164 changed files with 1943 additions and 24540 deletions
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35
drivers/cpufreq/light-mpw-cpufreq.c
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@@ -240,6 +240,15 @@ static int light_cpufreq_suspend(struct cpufreq_policy *policy)
return ret;
}
/*
* skip to siwtch pll during reboot process
*/
mutex_lock(&cpufreq_lock);
if (cpufreq_denied) {
pr_debug("Denied to switch CPU PLL temporarily on reboot\n");
mutex_unlock(&cpufreq_lock);
return 0;
}
/*
* Only CPU PLL0 would be active after STR resume. We should switch
* CPU PLL to be PLL0 after policy stopped.
@@ -247,12 +256,36 @@ static int light_cpufreq_suspend(struct cpufreq_policy *policy)
if (_light_get_pllid() == LIGHT_CPU_PLL_IDX(1))
_light_switch_pllid(LIGHT_CPU_PLL_IDX(0), policy->suspend_freq);
/*
* switch pll1 to min_freq, as pll1 also needs to be a known value
* or unexpected errors would come out during recovery.
*/
clk_prepare_enable(clks[LIGHT_CPU_PLL1_FOUTPOSTDIV].clk);
clk_set_rate(clks[LIGHT_CPU_PLL1_FOUTPOSTDIV].clk, min_freq * 1000);
clk_disable_unprepare(clks[LIGHT_CPU_PLL1_FOUTPOSTDIV].clk);
mutex_unlock(&cpufreq_lock);
return 0;
}
static int light_cpufreq_resume(struct cpufreq_policy *policy)
{
return 0;
int ret;
ret = __cpufreq_driver_target(policy, min_freq, CPUFREQ_RELATION_H);
if (ret)
pr_err("%s: unable to set restore-freq: %u. err: %d\n",
__func__, min_freq, ret);
/*
* CPU PLL0 with 300M would be active after STR resume. As we switch CPU PLL
* to PLL0 with highest frequency when suspend, switch PLL0 with right one
* after resume.
*/
mutex_lock(&cpufreq_lock);
if(_light_get_pllid() == LIGHT_CPU_PLL_IDX(1))
_light_switch_pllid(LIGHT_CPU_PLL_IDX(0), min_freq);
mutex_unlock(&cpufreq_lock);
return ret;
}
static int light_cpufreq_init(struct cpufreq_policy *policy)