armbian/linux
0
0
Fork 0
mirror of https://github.com/armbian/linux.git synced 2026-01-06 10:13:00 -08:00
Code Issues Packages Projects Releases Wiki Activity

soc: rockchip: opp_select: use the saved pvtm data for the same channel

Browse Source 
Some modules will use the same pvtm channel to adjust opp-table, do not
calclate pvtm data twice for the same channel.

Change-Id: Ib8d765139821cfbdcc45bd60153d975fc80d48fa
Signed-off-by: Liang Chen <cl@rock-chips.com>
This commit is contained in:
Liang Chen
2018-05-21 15:42:53 +08:00
parent 2b987b28a8
commit d5ee3defbe
1 changed files with 20 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

21
drivers/soc/rockchip/rockchip_opp_select.c
View File

@@ -38,6 +38,10 @@ struct pvtm_config {
struct thermal_zone_device *tz;
};
#define PVTM_CH_MAX 8
#define PVTM_SUB_CH_MAX 8
static int pvtm_value[PVTM_CH_MAX][PVTM_SUB_CH_MAX];
static int rockchip_get_efuse_value(struct device_node *np, char *porp_name,
int *value)
{
@@ -143,6 +147,8 @@ static int rockchip_parse_pvtm_config(struct device_node *np,
return -EINVAL;
if (of_property_read_u32_array(np, "rockchip,pvtm-ch", pvtm->ch, 2))
return -EINVAL;
if (pvtm->ch[0] > PVTM_CH_MAX || pvtm->ch[1] > PVTM_SUB_CH_MAX)
return -EINVAL;
if (of_property_read_u32(np, "rockchip,pvtm-sample-time",
&pvtm->sample_time))
return -EINVAL;
@@ -175,12 +181,23 @@ static int rockchip_get_pvtm_specific_value(struct device *dev,
{
struct pvtm_config *pvtm;
unsigned long old_freq;
unsigned int old_volt;
unsigned int old_volt, ch[2];
int cur_temp, diff_temp;
int cur_value, total_value, avg_value, diff_value;
int min_value, max_value;
int ret = 0, i = 0, retry = 2;
if (of_property_read_u32_array(np, "rockchip,pvtm-ch", ch, 2))
return -EINVAL;
if (ch[0] > PVTM_CH_MAX || ch[1] > PVTM_SUB_CH_MAX)
return -EINVAL;
if (pvtm_value[ch[0]][ch[1]]) {
*target_value = pvtm_value[ch[0]][ch[1]];
return 0;
}
pvtm = kzalloc(sizeof(*pvtm), GFP_KERNEL);
if (!pvtm)
return -ENOMEM;
@@ -241,6 +258,8 @@ static int rockchip_get_pvtm_specific_value(struct device *dev,
(diff_temp < 0 ? pvtm->temp_prop[0] : pvtm->temp_prop[1]);
*target_value = avg_value + diff_value;
pvtm_value[pvtm->ch[0]][pvtm->ch[1]] = *target_value;
dev_info(dev, "temp=%d, pvtm=%d (%d + %d)\n",
cur_temp, *target_value, avg_value, diff_value);