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bcl: enable charger bcl feature

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When SOC < 10% will mitigate CPU.For improved performance,
at turbo charging scene. will not mitigate CPU.

Change-Id: I593542e735c11227192367327d8aeaf51a03a06d
Signed-off-by: mahj8 <mahj8@lenovo.com>
Reviewed-on: https://gerrit.mot.com/1795816
SLTApproved: Slta Waiver
SME-Granted: SME Approvals Granted
Tested-by: Jira Key
Reviewed-by: Huosheng Liao <liaohs@motorola.com>
Submit-Approved: Jira Key
This commit is contained in:
mahj8 2020-11-06 15:17:11 +08:00 • committed by Xiaojun Ji
commit 31762154d1
1 changed files with 80 additions and 1 deletions
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81
drivers/thermal/qcom/bcl_soc.c
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@ -15,7 +15,7 @@
#include <linux/mutex.h>
#include <linux/power_supply.h>
#include <linux/thermal.h>
#include <linux/iio/consumer.h>
#include "../thermal_core.h"
#define BCL_DRIVER_NAME "bcl_soc_peripheral"
@ -30,10 +30,55 @@ struct bcl_device {
bool irq_enabled;
struct thermal_zone_device *tz_dev;
struct thermal_zone_of_device_ops ops;
int bcl_not_mitigate_icl;
struct iio_channel **ext_iio_chans;
};
static struct bcl_device *bcl_perph;
enum bcl_mmi_ext_iio_channels {
SMB5_HW_CURRENT_MAX = 0,
};
static const char * const bcl_mmi_ext_iio_chan_name[] = {
[SMB5_HW_CURRENT_MAX] = "usb_hw_current_max",
};
static bool is_chan_valid(enum bcl_mmi_ext_iio_channels chan)
{
int rc;
if (IS_ERR(bcl_perph->ext_iio_chans[chan]))
return false;
if (!bcl_perph->ext_iio_chans[chan]) {
bcl_perph->ext_iio_chans[chan] = iio_channel_get(bcl_perph->dev,
bcl_mmi_ext_iio_chan_name[chan]);
if (IS_ERR(bcl_perph->ext_iio_chans[chan])) {
rc = PTR_ERR(bcl_perph->ext_iio_chans[chan]);
bcl_perph->ext_iio_chans[chan] = NULL;
pr_err("Failed to get IIO channel %s, rc=%d\n",
bcl_mmi_ext_iio_chan_name[chan], rc);
return false;
}
}
return true;
}
int bcl_mmi_read_iio_chan(enum bcl_mmi_ext_iio_channels chan, int *val)
{
int rc;
if (is_chan_valid(chan)) {
rc = iio_read_channel_processed(
bcl_perph->ext_iio_chans[chan], val);
return (rc < 0) ? rc : 0;
}
return -EINVAL;
}
static int bcl_set_soc(void *data, int low, int high)
{
if (high == bcl_perph->trip_temp)
@ -61,6 +106,18 @@ static int bcl_read_soc(void *data, int *val)
int err = 0;
*val = 0;
if (bcl_perph->bcl_not_mitigate_icl) {
err = bcl_mmi_read_iio_chan(SMB5_HW_CURRENT_MAX, &ret.intval);
if (err)
pr_err("HW current max read error:%d\n", err);
else if ((ret.intval /1000) >= bcl_perph->bcl_not_mitigate_icl) {
pr_debug("charger current more than bcl_not_mitigate_icl %dmA\n",
bcl_perph->bcl_not_mitigate_icl);
return err;
}
}
if (!batt_psy)
batt_psy = power_supply_get_by_name("battery");
if (batt_psy) {
@ -127,6 +184,18 @@ static int bcl_soc_remove(struct platform_device *pdev)
return 0;
}
static int bcl_mmi_init_iio_psy(struct platform_device *pdev)
{
bcl_perph->ext_iio_chans = devm_kcalloc(bcl_perph->dev,
ARRAY_SIZE(bcl_mmi_ext_iio_chan_name),
sizeof(*bcl_perph->ext_iio_chans),
GFP_KERNEL);
if (!bcl_perph->ext_iio_chans)
return -ENOMEM;
return 0;
}
static int bcl_soc_probe(struct platform_device *pdev)
{
int ret = 0;
@ -157,6 +226,16 @@ static int bcl_soc_probe(struct platform_device *pdev)
bcl_perph->tz_dev = NULL;
goto bcl_soc_probe_exit;
}
bcl_mmi_init_iio_psy(pdev);
ret = of_property_read_u32(pdev->dev.of_node,
"qcom,bcl-not-mitigate-icl",
&bcl_perph->bcl_not_mitigate_icl);
if (ret < 0) {
bcl_perph->bcl_not_mitigate_icl = 0;
}
thermal_zone_device_update(bcl_perph->tz_dev, THERMAL_DEVICE_UP);
schedule_work(&bcl_perph->soc_eval_work);