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author | Rajendra Nayak <rnayak@codeaurora.org> | 2021-03-30 12:12:41 +0100 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-04-02 16:28:10 +0200 |
commit | 5a1bea2a2572ce5eb4bdcf432a6929681ee381f2 (patch) | |
tree | 7477b26d1951b1fa95a7882e05619eba6eee3209 /drivers/nvmem | |
parent | b1f20fd04577a24bef4616a67a61c6dfe1eedb6b (diff) | |
download | linux-5a1bea2a2572ce5eb4bdcf432a6929681ee381f2.tar.bz2 |
nvmem: qfprom: Add support for fuse blowing on sc7280
Handle the differences across LDO voltage needed for blowing fuses,
and the blow timer value, identified using a minor version of 15
on sc7280.
Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
Signed-off-by: Ravi Kumar Bokka <rbokka@codeaurora.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20210330111241.19401-11-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/nvmem')
-rw-r--r-- | drivers/nvmem/qfprom.c | 27 |
1 files changed, 25 insertions, 2 deletions
diff --git a/drivers/nvmem/qfprom.c b/drivers/nvmem/qfprom.c index 100d69d8f2e1..d6d3f24685a8 100644 --- a/drivers/nvmem/qfprom.c +++ b/drivers/nvmem/qfprom.c @@ -45,11 +45,13 @@ MODULE_PARM_DESC(read_raw_data, "Read raw instead of corrected data"); * @qfprom_blow_timer_value: The timer value of qfprom when doing efuse blow. * @qfprom_blow_set_freq: The frequency required to set when we start the * fuse blowing. + * @qfprom_blow_uV: LDO voltage to be set when doing efuse blow */ struct qfprom_soc_data { u32 accel_value; u32 qfprom_blow_timer_value; u32 qfprom_blow_set_freq; + int qfprom_blow_uV; }; /** @@ -111,6 +113,15 @@ static const struct qfprom_soc_compatible_data sc7180_qfprom = { .nkeepout = ARRAY_SIZE(sc7180_qfprom_keepout) }; +static const struct nvmem_keepout sc7280_qfprom_keepout[] = { + {.start = 0x128, .end = 0x148}, + {.start = 0x238, .end = 0x248} +}; + +static const struct qfprom_soc_compatible_data sc7280_qfprom = { + .keepout = sc7280_qfprom_keepout, + .nkeepout = ARRAY_SIZE(sc7280_qfprom_keepout) +}; /** * qfprom_disable_fuse_blowing() - Undo enabling of fuse blowing. * @priv: Our driver data. @@ -168,6 +179,7 @@ static int qfprom_enable_fuse_blowing(const struct qfprom_priv *priv, struct qfprom_touched_values *old) { int ret; + int qfprom_blow_uV = priv->soc_data->qfprom_blow_uV; ret = clk_prepare_enable(priv->secclk); if (ret) { @@ -187,9 +199,9 @@ static int qfprom_enable_fuse_blowing(const struct qfprom_priv *priv, * a rail shared do don't specify a max--regulator constraints * will handle. */ - ret = regulator_set_voltage(priv->vcc, 1800000, INT_MAX); + ret = regulator_set_voltage(priv->vcc, qfprom_blow_uV, INT_MAX); if (ret) { - dev_err(priv->dev, "Failed to set 1.8 voltage\n"); + dev_err(priv->dev, "Failed to set %duV\n", qfprom_blow_uV); goto err_clk_rate_set; } @@ -311,6 +323,14 @@ static const struct qfprom_soc_data qfprom_7_8_data = { .accel_value = 0xD10, .qfprom_blow_timer_value = 25, .qfprom_blow_set_freq = 4800000, + .qfprom_blow_uV = 1800000, +}; + +static const struct qfprom_soc_data qfprom_7_15_data = { + .accel_value = 0xD08, + .qfprom_blow_timer_value = 24, + .qfprom_blow_set_freq = 4800000, + .qfprom_blow_uV = 1900000, }; static int qfprom_probe(struct platform_device *pdev) @@ -379,6 +399,8 @@ static int qfprom_probe(struct platform_device *pdev) if (major_version == 7 && minor_version == 8) priv->soc_data = &qfprom_7_8_data; + if (major_version == 7 && minor_version == 15) + priv->soc_data = &qfprom_7_15_data; priv->vcc = devm_regulator_get(&pdev->dev, "vcc"); if (IS_ERR(priv->vcc)) @@ -405,6 +427,7 @@ static int qfprom_probe(struct platform_device *pdev) static const struct of_device_id qfprom_of_match[] = { { .compatible = "qcom,qfprom",}, { .compatible = "qcom,sc7180-qfprom", .data = &sc7180_qfprom}, + { .compatible = "qcom,sc7280-qfprom", .data = &sc7280_qfprom}, {/* sentinel */}, }; MODULE_DEVICE_TABLE(of, qfprom_of_match); |