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regulator: qpnp-lcdb: Add support for some LCDB DT properties

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Add support for the following LCDB devicee tree properties:
"qcom,high-p2-blank-time-ns" to control the higher clamp threshold for
p2 minimum on time.
"qcom,low-p2-blank-time-ns" to control the lower clamp threshold for
p2 minimum on time.
"qcom,mpc-current-thr-ma" to control the mpc threshold for inductor
current after start up is done.

Change-Id: Iabe2cc2c9913f433dd55d952a267f94ce0682f0e
Signed-off-by: Jishnu Prakash <jprakash@codeaurora.org>
This commit is contained in:
Jishnu Prakash 2021-04-02 17:20:48 +05:30
parent 601026c787
commit 0bb91667f1
1 changed files with 109 additions and 0 deletions

109
drivers/regulator/qpnp-lcdb-regulator.c
View File

@ -99,6 +99,11 @@
#define NFET_SW_SIZE_SHIFT 2
#define PFET_SW_SIZE_MASK GENMASK(1, 0)
#define PM7325B_LCDB_P2_BLANK_TIMER_REG 0x54
#define HIGH_P2_BLK_SEL_MASK GENMASK(6, 4)
#define HIGH_P2_BLK_SEL_SHIFT 4
#define LOW_P2_BLK_SEL_MASK GENMASK(2, 0)
#define LCDB_BST_VREG_OK_CTL_REG 0x55
#define BST_VREG_OK_DEB_MASK GENMASK(1, 0)
@ -129,6 +134,12 @@
#define EN_TOUCH_WAKE_BIT BIT(3)
#define DIS_SCP_BIT BIT(0)
#define PM7325B_LCDB_MPC_CTL_REG 0x60
#define MPC_NCP_SD_SEL_MASK GENMASK(2, 0)
#define MPC_CURRENT_MIN 160
#define MPC_CURRENT_MAX 440
#define MPC_CURRENT_STEP 40
#define LCDB_PFM_CTL_REG 0x62
#define EN_PFM_BIT BIT(7)
#define BYP_BST_SOFT_START_COMP_BIT BIT(0)
@ -278,6 +289,9 @@ struct qpnp_lcdb {
int min_voltage_mv;
int max_voltage_mv;
int pwrup_config;
int high_p2_blk_ns;
int low_p2_blk_ns;
int mpc_current_thr_ma;
bool ncp_symmetry;
/* TTW params */
@ -421,6 +435,17 @@ static const u32 pm7325b_ldo_ilim_ma[] = {
840,
};
static const u32 pm7325b_p2_blk_ns[] = {
40,
69,
99,
129,
159,
189,
220,
250,
};
#define SETTING(_id, _sec_access, _valid) \
[_id] = { \
.address = _id##_REG, \
@ -2431,6 +2456,33 @@ static int qpnp_lcdb_hw_init(struct qpnp_lcdb *lcdb)
return rc;
}
if (lcdb->high_p2_blk_ns != -EINVAL) {
rc = qpnp_lcdb_masked_write(lcdb, lcdb->base +
PM7325B_LCDB_P2_BLANK_TIMER_REG,
HIGH_P2_BLK_SEL_MASK,
lcdb->high_p2_blk_ns << HIGH_P2_BLK_SEL_SHIFT);
if (rc < 0)
return rc;
}
if (lcdb->low_p2_blk_ns != -EINVAL) {
rc = qpnp_lcdb_masked_write(lcdb, lcdb->base +
PM7325B_LCDB_P2_BLANK_TIMER_REG,
LOW_P2_BLK_SEL_MASK,
lcdb->low_p2_blk_ns);
if (rc < 0)
return rc;
}
if (lcdb->mpc_current_thr_ma != -EINVAL) {
rc = qpnp_lcdb_masked_write(lcdb, lcdb->base +
PM7325B_LCDB_MPC_CTL_REG,
MPC_NCP_SD_SEL_MASK,
lcdb->mpc_current_thr_ma);
if (rc < 0)
return rc;
}
if (lcdb->ncp_symmetry) {
rc = qpnp_lcdb_masked_write(lcdb, lcdb->base +
LCDB_NCP_OUTPUT_VOLTAGE_REG,
@ -2514,6 +2566,39 @@ static int qpnp_lcdb_pwrup_dn_delay(int val, int *delay)
return 0;
}
static int qpnp_lcdb_p2_blk_time(int val, int *time)
{
int i;
if (!is_between(val, pm7325b_p2_blk_ns[0], pm7325b_p2_blk_ns[7])) {
pr_err("Invalid P2_BLK_TIME val %d (min=%d max=%d)\n",
val, pm7325b_p2_blk_ns[0], pm7325b_p2_blk_ns[7]);
return -EINVAL;
}
for (i = 0; i < ARRAY_SIZE(pm7325b_p2_blk_ns); i++) {
if (val == pm7325b_p2_blk_ns[i]) {
*time = i;
break;
}
}
return 0;
}
static int qpnp_lcdb_mpc_current(int val, int *cur)
{
if (!is_between(val, MPC_CURRENT_MIN, MPC_CURRENT_MAX)) {
pr_err("Invalid MPC_CURRENT val %d (min=%d max=%d)\n",
val, MPC_CURRENT_MIN, MPC_CURRENT_MAX);
return -EINVAL;
}
*cur = (val - MPC_CURRENT_MIN) / MPC_CURRENT_STEP;
return 0;
}
static int qpnp_lcdb_parse_dt(struct qpnp_lcdb *lcdb)
{
int rc = 0;
@ -2569,6 +2654,9 @@ static int qpnp_lcdb_parse_dt(struct qpnp_lcdb *lcdb)
lcdb->pwrdn_delay_ms = -EINVAL;
lcdb->pwrup_delay_ms = -EINVAL;
lcdb->pwrup_config = -EINVAL;
lcdb->high_p2_blk_ns = -EINVAL;
lcdb->low_p2_blk_ns = -EINVAL;
lcdb->mpc_current_thr_ma = -EINVAL;
rc = of_property_read_u32(node, "qcom,pwrdn-delay-ms", &tmp);
if (!rc) {
rc = qpnp_lcdb_pwrup_dn_delay(tmp, &lcdb->pwrdn_delay_ms);
@ -2590,6 +2678,27 @@ static int qpnp_lcdb_parse_dt(struct qpnp_lcdb *lcdb)
return -EINVAL;
}
rc = of_property_read_u32(node, "qcom,high-p2-blank-time-ns", &tmp);
if (!rc) {
rc = qpnp_lcdb_p2_blk_time(tmp, &lcdb->high_p2_blk_ns);
if (rc < 0)
return rc;
}
rc = of_property_read_u32(node, "qcom,low-p2-blank-time-ns", &tmp);
if (!rc) {
rc = qpnp_lcdb_p2_blk_time(tmp, &lcdb->low_p2_blk_ns);
if (rc < 0)
return rc;
}
rc = of_property_read_u32(node, "qcom,mpc-current-thr-ma", &tmp);
if (!rc) {
rc = qpnp_lcdb_mpc_current(tmp, &lcdb->mpc_current_thr_ma);
if (rc < 0)
return rc;
}
return 0;
}