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phy: qualcomm: phy-qcom-eusb2-repeater: Add squelch detect param update

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Add support for overriding Squelch Detect parameter.

Signed-off-by: Krishna Kurapati <krishna.kurapati@oss.qualcomm.com>
Reviewed-by: Abel Vesa <abel.vesa@oss.qualcomm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://patch.msgid.link/20251219173108.2119296-3-krishna.kurapati@oss.qualcomm.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Krishna Kurapati
2025-12-19 23:01:07 +05:30
committed by Vinod Koul
parent a590c0f935
commit 5c87da0308
1 changed files with 22 additions and 0 deletions
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22
drivers/phy/qualcomm/phy-qcom-eusb2-repeater.c
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@@ -37,6 +37,17 @@
#define EUSB2_TUNE_EUSB_EQU 0x5A
#define EUSB2_TUNE_EUSB_HS_COMP_CUR 0x5B
static const int squelch_detector[] = {
[0] = -6000,
[1] = -5000,
[2] = -4000,
[3] = -3000,
[4] = -2000,
[5] = -1000,
[6] = 0,
[7] = 1000,
};
struct eusb2_repeater_init_tbl_reg {
unsigned int reg;
unsigned int value;
@@ -134,7 +145,9 @@ static int eusb2_repeater_init(struct phy *phy)
struct regmap *regmap = rptr->regmap;
u32 base = rptr->base;
u32 poll_val;
s32 dt_val;
int ret;
int i;
u8 val;
ret = regulator_bulk_enable(rptr->cfg->num_vregs, rptr->vregs);
@@ -161,6 +174,15 @@ static int eusb2_repeater_init(struct phy *phy)
if (!of_property_read_u8(np, "qcom,tune-res-fsdif", &val))
regmap_write(regmap, base + EUSB2_TUNE_RES_FSDIF, val);
if (!of_property_read_s32(np, "qcom,squelch-detector-bp", &dt_val)) {
for (i = 0; i < ARRAY_SIZE(squelch_detector); i++) {
if (squelch_detector[i] == dt_val) {
regmap_write(regmap, base + EUSB2_TUNE_SQUELCH_U, i);
break;
}
}
}
/* Wait for status OK */
ret = regmap_read_poll_timeout(regmap, base + EUSB2_RPTR_STATUS, poll_val,
poll_val & RPTR_OK, 10, 5);