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path: root/drivers/power/sequencing/pwrseq-qcom-wcn.c
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Diffstat (limited to 'drivers/power/sequencing/pwrseq-qcom-wcn.c')
-rw-r--r--drivers/power/sequencing/pwrseq-qcom-wcn.c29
1 files changed, 29 insertions, 0 deletions
diff --git a/drivers/power/sequencing/pwrseq-qcom-wcn.c b/drivers/power/sequencing/pwrseq-qcom-wcn.c
index 682a9beac69e..e8f5030f2639 100644
--- a/drivers/power/sequencing/pwrseq-qcom-wcn.c
+++ b/drivers/power/sequencing/pwrseq-qcom-wcn.c
@@ -272,6 +272,24 @@ static const struct pwrseq_qcom_wcn_pdata pwrseq_qca6390_of_data = {
.targets = pwrseq_qcom_wcn_targets,
};
+static const char *const pwrseq_wcn6750_vregs[] = {
+ "vddaon",
+ "vddasd",
+ "vddpmu",
+ "vddrfa0p8",
+ "vddrfa1p2",
+ "vddrfa1p7",
+ "vddrfa2p2",
+};
+
+static const struct pwrseq_qcom_wcn_pdata pwrseq_wcn6750_of_data = {
+ .vregs = pwrseq_wcn6750_vregs,
+ .num_vregs = ARRAY_SIZE(pwrseq_wcn6750_vregs),
+ .pwup_delay_ms = 50,
+ .gpio_enable_delay_ms = 5,
+ .targets = pwrseq_qcom_wcn_targets,
+};
+
static const char *const pwrseq_wcn6855_vregs[] = {
"vddio",
"vddaon",
@@ -378,6 +396,13 @@ static int pwrseq_qcom_wcn_probe(struct platform_device *pdev)
return dev_err_probe(dev, PTR_ERR(ctx->bt_gpio),
"Failed to get the Bluetooth enable GPIO\n");
+ /*
+ * FIXME: This should actually be GPIOD_OUT_LOW, but doing so would
+ * cause the WLAN power to be toggled, resulting in PCIe link down.
+ * Since the PCIe controller driver is not handling link down currently,
+ * the device becomes unusable. So we need to keep this workaround until
+ * the link down handling is implemented in the controller driver.
+ */
ctx->wlan_gpio = devm_gpiod_get_optional(dev, "wlan-enable",
GPIOD_ASIS);
if (IS_ERR(ctx->wlan_gpio))
@@ -431,6 +456,10 @@ static const struct of_device_id pwrseq_qcom_wcn_of_match[] = {
.compatible = "qcom,wcn7850-pmu",
.data = &pwrseq_wcn7850_of_data,
},
+ {
+ .compatible = "qcom,wcn6750-pmu",
+ .data = &pwrseq_wcn6750_of_data,
+ },
{ }
};
MODULE_DEVICE_TABLE(of, pwrseq_qcom_wcn_of_match);