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soc: rockchip: opp_select: adjust opp-table by otp

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Signed-off-by: Liang Chen <cl@rock-chips.com>
Change-Id: I8d642bbcb4dafcfa62d85cf108623e92f6fd4572
This commit is contained in:
Liang Chen
2023-02-14 17:24:57 +08:00
committed by Tao Huang
parent 78cef6d343
commit c44ab0fa47
1 changed files with 46 additions and 0 deletions
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46
drivers/soc/rockchip/rockchip_opp_select.c
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@@ -66,6 +66,13 @@ struct lkg_conversion_table {
int conv;
};
struct otp_opp_info {
u16 min_freq;
u16 max_freq;
u8 volt;
u8 length;
} __packed;
#define PVTM_CH_MAX 8
#define PVTM_SUB_CH_MAX 8
@@ -1443,6 +1450,44 @@ static void rockchip_adjust_opp_by_mbist_vmin(struct device *dev,
mutex_unlock(&opp_table->lock);
}
static void rockchip_adjust_opp_by_otp(struct device *dev,
struct device_node *np)
{
struct dev_pm_opp *opp;
struct opp_table *opp_table;
struct otp_opp_info opp_info = {};
int ret;
ret = rockchip_nvmem_cell_read_common(np, "opp-info", &opp_info,
sizeof(opp_info));
if (ret || !opp_info.volt)
return;
dev_info(dev, "adjust opp-table by otp: min=%uM, max=%uM, volt=%umV\n",
opp_info.min_freq, opp_info.max_freq, opp_info.volt);
opp_table = dev_pm_opp_get_opp_table(dev);
if (!opp_table)
return;
mutex_lock(&opp_table->lock);
list_for_each_entry(opp, &opp_table->opp_list, node) {
if (!opp->available)
continue;
if (opp->rate < opp_info.min_freq * 1000000)
continue;
if (opp->rate > opp_info.max_freq * 1000000)
continue;
opp->supplies->u_volt += opp_info.volt * 1000;
if (opp->supplies->u_volt > opp->supplies->u_volt_max)
opp->supplies->u_volt = opp->supplies->u_volt_max;
}
mutex_unlock(&opp_table->lock);
dev_pm_opp_put_opp_table(opp_table);
}
static int rockchip_adjust_opp_table(struct device *dev,
unsigned long scale_rate)
{
@@ -1489,6 +1534,7 @@ int rockchip_adjust_power_scale(struct device *dev, int scale)
of_property_read_u32(np, "rockchip,avs-enable", &avs);
of_property_read_u32(np, "rockchip,avs", &avs);
of_property_read_u32(np, "rockchip,avs-scale", &avs_scale);
rockchip_adjust_opp_by_otp(dev, np);
rockchip_adjust_opp_by_mbist_vmin(dev, np);
rockchip_adjust_opp_by_irdrop(dev, np, &safe_rate, &max_rate);