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Message-ID: <c8529abdbe8a07ac0d7b09ab24fad73ab56116be.1477501000.git.stwiss.opensource@diasemi.com>
Date: Wed, 26 Oct 2016 17:56:38 +0100
From: Steve Twiss <stwiss.opensource@...semi.com>
To: LINUX-KERNEL <linux-kernel@...r.kernel.org>,
Liam Girdwood <lgirdwood@...il.com>,
Mark Brown <broonie@...nel.org>
CC: DEVICETREE <devicetree@...r.kernel.org>,
Dmitry Torokhov <dmitry.torokhov@...il.com>,
Eduardo Valentin <edubezval@...il.com>,
Guenter Roeck <linux@...ck-us.net>,
LINUX-INPUT <linux-input@...r.kernel.org>,
LINUX-PM <linux-pm@...r.kernel.org>,
LINUX-WATCHDOG <linux-watchdog@...r.kernel.org>,
Lee Jones <lee.jones@...aro.org>,
Mark Rutland <mark.rutland@....com>,
Rob Herring <robh+dt@...nel.org>,
Support Opensource <support.opensource@...semi.com>,
Wim Van Sebroeck <wim@...ana.be>,
Zhang Rui <rui.zhang@...el.com>
Subject: [PATCH V2 06/10] regulator: da9061: BUCK and LDO regulator driver
From: Steve Twiss <stwiss.opensource@...semi.com>
Regulator support for the DA9061 is added into the DA9062 regulator driver.
The regulators for DA9061 differ from those of DA9062.
A new DA9061 enumeration list for the LDOs and Bucks supported by this
device is added. Regulator information added: the old regulator
information for DA9062 is renamed from local_regulator_info[] to
local_da9062_regulator_info[] and a new array is added to support
local_da9061_regulator_info[].
The probe() function switches on the da9062_compatible_types enumeration
and configures the correct da9062_regulator_info array and number of
regulator entries.
Kconfig is updated to reflect support for DA9061 and DA9062 regulators.
Signed-off-by: Steve Twiss <stwiss.opensource@...semi.com>
---
This patch applies against linux-next and v4.8
v1 -> v2
- Patch renamed from [PATCH V1 02/10] to [PATCH V2 06/10] -- these
changes were made to fix checkpatch warnings caused by the patch
set dependency order
- Updated header to use DA9061 and DA9062
Mark,
These changes depend on a header file provided as part of an earlier
patch [PATCH V2 05/10] from this set. The regulator probe() switches on
the chip_type which uses enum da9062_compatible_types in core.h from this
patch.
Regards,
Steve Twiss, Dialog Semiconductor Ltd.
drivers/regulator/Kconfig | 4 +-
drivers/regulator/da9062-regulator.c | 301 +++++++++++++++++++++++++++++++++--
2 files changed, 292 insertions(+), 13 deletions(-)
diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig
index 6c88e31..c4f678fe 100644
--- a/drivers/regulator/Kconfig
+++ b/drivers/regulator/Kconfig
@@ -188,11 +188,11 @@ config REGULATOR_DA9055
will be called da9055-regulator.
config REGULATOR_DA9062
- tristate "Dialog Semiconductor DA9062 regulators"
+ tristate "Dialog Semiconductor DA9061/62 regulators"
depends on MFD_DA9062
help
Say y here to support the BUCKs and LDOs regulators found on
- DA9062 PMICs.
+ DA9061 and DA9062 PMICs.
This driver can also be built as a module. If so, the module
will be called da9062-regulator.
diff --git a/drivers/regulator/da9062-regulator.c b/drivers/regulator/da9062-regulator.c
index 0638c8b..931be68 100644
--- a/drivers/regulator/da9062-regulator.c
+++ b/drivers/regulator/da9062-regulator.c
@@ -1,5 +1,5 @@
/*
- * da9062-regulator.c - REGULATOR device driver for DA9062
+ * Regulator device driver for DA9061 and DA9062.
* Copyright (C) 2015 Dialog Semiconductor Ltd.
*
* This program is free software; you can redistribute it and/or
@@ -28,6 +28,17 @@
/* Regulator IDs */
enum {
+ DA9061_ID_BUCK1,
+ DA9061_ID_BUCK2,
+ DA9061_ID_BUCK3,
+ DA9061_ID_LDO1,
+ DA9061_ID_LDO2,
+ DA9061_ID_LDO3,
+ DA9061_ID_LDO4,
+ DA9061_MAX_REGULATORS,
+};
+
+enum {
DA9062_ID_BUCK1,
DA9062_ID_BUCK2,
DA9062_ID_BUCK3,
@@ -88,15 +99,21 @@ enum {
/* Regulator operations */
-/* Current limits array (in uA) BUCK1 and BUCK3.
- Entry indexes corresponds to register values. */
+/* Current limits array (in uA)
+ * - DA9061_ID_[BUCK1|BUCK3]
+ * - DA9062_ID_[BUCK1|BUCK2|BUCK4]
+ * Entry indexes corresponds to register values.
+ */
static const int da9062_buck_a_limits[] = {
500000, 600000, 700000, 800000, 900000, 1000000, 1100000, 1200000,
1300000, 1400000, 1500000, 1600000, 1700000, 1800000, 1900000, 2000000
};
-/* Current limits array (in uA) for BUCK2.
- Entry indexes corresponds to register values. */
+/* Current limits array (in uA)
+ * - DA9061_ID_BUCK2
+ * - DA9062_ID_BUCK3
+ * Entry indexes corresponds to register values.
+ */
static const int da9062_buck_b_limits[] = {
1500000, 1600000, 1700000, 1800000, 1900000, 2000000, 2100000, 2200000,
2300000, 2400000, 2500000, 2600000, 2700000, 2800000, 2900000, 3000000
@@ -405,8 +422,254 @@ static const struct regulator_ops da9062_ldo_ops = {
.set_suspend_mode = da9062_ldo_set_suspend_mode,
};
-/* Regulator information */
-static const struct da9062_regulator_info local_regulator_info[] = {
+/* DA9061 Regulator information */
+static const struct da9062_regulator_info local_da9061_regulator_info[] = {
+ {
+ .desc.id = DA9061_ID_BUCK1,
+ .desc.name = "DA9061 BUCK1",
+ .desc.of_match = of_match_ptr("buck1"),
+ .desc.regulators_node = of_match_ptr("regulators"),
+ .desc.ops = &da9062_buck_ops,
+ .desc.min_uV = (300) * 1000,
+ .desc.uV_step = (10) * 1000,
+ .desc.n_voltages = ((1570) - (300))/(10) + 1,
+ .current_limits = da9062_buck_a_limits,
+ .n_current_limits = ARRAY_SIZE(da9062_buck_a_limits),
+ .desc.enable_reg = DA9062AA_BUCK1_CONT,
+ .desc.enable_mask = DA9062AA_BUCK1_EN_MASK,
+ .desc.vsel_reg = DA9062AA_VBUCK1_A,
+ .desc.vsel_mask = DA9062AA_VBUCK1_A_MASK,
+ .desc.linear_min_sel = 0,
+ .sleep = REG_FIELD(DA9062AA_VBUCK1_A,
+ __builtin_ffs((int)DA9062AA_BUCK1_SL_A_MASK) - 1,
+ sizeof(unsigned int) * 8 -
+ __builtin_clz((DA9062AA_BUCK1_SL_A_MASK)) - 1),
+ .suspend_sleep = REG_FIELD(DA9062AA_VBUCK1_B,
+ __builtin_ffs((int)DA9062AA_BUCK1_SL_B_MASK) - 1,
+ sizeof(unsigned int) * 8 -
+ __builtin_clz((DA9062AA_BUCK1_SL_B_MASK)) - 1),
+ .suspend_vsel_reg = DA9062AA_VBUCK1_B,
+ .mode = REG_FIELD(DA9062AA_BUCK1_CFG,
+ __builtin_ffs((int)DA9062AA_BUCK1_MODE_MASK) - 1,
+ sizeof(unsigned int) * 8 -
+ __builtin_clz((DA9062AA_BUCK1_MODE_MASK)) - 1),
+ .suspend = REG_FIELD(DA9062AA_DVC_1,
+ __builtin_ffs((int)DA9062AA_VBUCK1_SEL_MASK) - 1,
+ sizeof(unsigned int) * 8 -
+ __builtin_clz((DA9062AA_VBUCK1_SEL_MASK)) - 1),
+ .ilimit = REG_FIELD(DA9062AA_BUCK_ILIM_C,
+ __builtin_ffs((int)DA9062AA_BUCK1_ILIM_MASK) - 1,
+ sizeof(unsigned int) * 8 -
+ __builtin_clz((DA9062AA_BUCK1_ILIM_MASK)) - 1),
+ },
+ {
+ .desc.id = DA9061_ID_BUCK2,
+ .desc.name = "DA9061 BUCK2",
+ .desc.of_match = of_match_ptr("buck2"),
+ .desc.regulators_node = of_match_ptr("regulators"),
+ .desc.ops = &da9062_buck_ops,
+ .desc.min_uV = (800) * 1000,
+ .desc.uV_step = (20) * 1000,
+ .desc.n_voltages = ((3340) - (800))/(20) + 1,
+ .current_limits = da9062_buck_b_limits,
+ .n_current_limits = ARRAY_SIZE(da9062_buck_b_limits),
+ .desc.enable_reg = DA9062AA_BUCK3_CONT,
+ .desc.enable_mask = DA9062AA_BUCK3_EN_MASK,
+ .desc.vsel_reg = DA9062AA_VBUCK3_A,
+ .desc.vsel_mask = DA9062AA_VBUCK3_A_MASK,
+ .desc.linear_min_sel = 0,
+ .sleep = REG_FIELD(DA9062AA_VBUCK3_A,
+ __builtin_ffs((int)DA9062AA_BUCK3_SL_A_MASK) - 1,
+ sizeof(unsigned int) * 8 -
+ __builtin_clz((DA9062AA_BUCK3_SL_A_MASK)) - 1),
+ .suspend_sleep = REG_FIELD(DA9062AA_VBUCK3_B,
+ __builtin_ffs((int)DA9062AA_BUCK3_SL_B_MASK) - 1,
+ sizeof(unsigned int) * 8 -
+ __builtin_clz((DA9062AA_BUCK3_SL_B_MASK)) - 1),
+ .suspend_vsel_reg = DA9062AA_VBUCK3_B,
+ .mode = REG_FIELD(DA9062AA_BUCK3_CFG,
+ __builtin_ffs((int)DA9062AA_BUCK3_MODE_MASK) - 1,
+ sizeof(unsigned int) * 8 -
+ __builtin_clz((DA9062AA_BUCK3_MODE_MASK)) - 1),
+ .suspend = REG_FIELD(DA9062AA_DVC_1,
+ __builtin_ffs((int)DA9062AA_VBUCK3_SEL_MASK) - 1,
+ sizeof(unsigned int) * 8 -
+ __builtin_clz((DA9062AA_VBUCK3_SEL_MASK)) - 1),
+ .ilimit = REG_FIELD(DA9062AA_BUCK_ILIM_A,
+ __builtin_ffs((int)DA9062AA_BUCK3_ILIM_MASK) - 1,
+ sizeof(unsigned int) * 8 -
+ __builtin_clz((DA9062AA_BUCK3_ILIM_MASK)) - 1),
+ },
+ {
+ .desc.id = DA9061_ID_BUCK3,
+ .desc.name = "DA9061 BUCK3",
+ .desc.of_match = of_match_ptr("buck3"),
+ .desc.regulators_node = of_match_ptr("regulators"),
+ .desc.ops = &da9062_buck_ops,
+ .desc.min_uV = (530) * 1000,
+ .desc.uV_step = (10) * 1000,
+ .desc.n_voltages = ((1800) - (530))/(10) + 1,
+ .current_limits = da9062_buck_a_limits,
+ .n_current_limits = ARRAY_SIZE(da9062_buck_a_limits),
+ .desc.enable_reg = DA9062AA_BUCK4_CONT,
+ .desc.enable_mask = DA9062AA_BUCK4_EN_MASK,
+ .desc.vsel_reg = DA9062AA_VBUCK4_A,
+ .desc.vsel_mask = DA9062AA_VBUCK4_A_MASK,
+ .desc.linear_min_sel = 0,
+ .sleep = REG_FIELD(DA9062AA_VBUCK4_A,
+ __builtin_ffs((int)DA9062AA_BUCK4_SL_A_MASK) - 1,
+ sizeof(unsigned int) * 8 -
+ __builtin_clz((DA9062AA_BUCK4_SL_A_MASK)) - 1),
+ .suspend_sleep = REG_FIELD(DA9062AA_VBUCK4_B,
+ __builtin_ffs((int)DA9062AA_BUCK4_SL_B_MASK) - 1,
+ sizeof(unsigned int) * 8 -
+ __builtin_clz((DA9062AA_BUCK4_SL_B_MASK)) - 1),
+ .suspend_vsel_reg = DA9062AA_VBUCK4_B,
+ .mode = REG_FIELD(DA9062AA_BUCK4_CFG,
+ __builtin_ffs((int)DA9062AA_BUCK4_MODE_MASK) - 1,
+ sizeof(unsigned int) * 8 -
+ __builtin_clz((DA9062AA_BUCK4_MODE_MASK)) - 1),
+ .suspend = REG_FIELD(DA9062AA_DVC_1,
+ __builtin_ffs((int)DA9062AA_VBUCK4_SEL_MASK) - 1,
+ sizeof(unsigned int) * 8 -
+ __builtin_clz((DA9062AA_VBUCK4_SEL_MASK)) - 1),
+ .ilimit = REG_FIELD(DA9062AA_BUCK_ILIM_B,
+ __builtin_ffs((int)DA9062AA_BUCK4_ILIM_MASK) - 1,
+ sizeof(unsigned int) * 8 -
+ __builtin_clz((DA9062AA_BUCK4_ILIM_MASK)) - 1),
+ },
+ {
+ .desc.id = DA9061_ID_LDO1,
+ .desc.name = "DA9061 LDO1",
+ .desc.of_match = of_match_ptr("ldo1"),
+ .desc.regulators_node = of_match_ptr("regulators"),
+ .desc.ops = &da9062_ldo_ops,
+ .desc.min_uV = (900) * 1000,
+ .desc.uV_step = (50) * 1000,
+ .desc.n_voltages = ((3600) - (900))/(50) + 1,
+ .desc.enable_reg = DA9062AA_LDO1_CONT,
+ .desc.enable_mask = DA9062AA_LDO1_EN_MASK,
+ .desc.vsel_reg = DA9062AA_VLDO1_A,
+ .desc.vsel_mask = DA9062AA_VLDO1_A_MASK,
+ .desc.linear_min_sel = 0,
+ .sleep = REG_FIELD(DA9062AA_VLDO1_A,
+ __builtin_ffs((int)DA9062AA_LDO1_SL_A_MASK) - 1,
+ sizeof(unsigned int) * 8 -
+ __builtin_clz((DA9062AA_LDO1_SL_A_MASK)) - 1),
+ .suspend_sleep = REG_FIELD(DA9062AA_VLDO1_B,
+ __builtin_ffs((int)DA9062AA_LDO1_SL_B_MASK) - 1,
+ sizeof(unsigned int) * 8 -
+ __builtin_clz((DA9062AA_LDO1_SL_B_MASK)) - 1),
+ .suspend_vsel_reg = DA9062AA_VLDO1_B,
+ .suspend = REG_FIELD(DA9062AA_DVC_1,
+ __builtin_ffs((int)DA9062AA_VLDO1_SEL_MASK) - 1,
+ sizeof(unsigned int) * 8 -
+ __builtin_clz((DA9062AA_VLDO1_SEL_MASK)) - 1),
+ .oc_event = REG_FIELD(DA9062AA_STATUS_D,
+ __builtin_ffs((int)DA9062AA_LDO1_ILIM_MASK) - 1,
+ sizeof(unsigned int) * 8 -
+ __builtin_clz((DA9062AA_LDO1_ILIM_MASK)) - 1),
+ },
+ {
+ .desc.id = DA9061_ID_LDO2,
+ .desc.name = "DA9061 LDO2",
+ .desc.of_match = of_match_ptr("ldo2"),
+ .desc.regulators_node = of_match_ptr("regulators"),
+ .desc.ops = &da9062_ldo_ops,
+ .desc.min_uV = (900) * 1000,
+ .desc.uV_step = (50) * 1000,
+ .desc.n_voltages = ((3600) - (600))/(50) + 1,
+ .desc.enable_reg = DA9062AA_LDO2_CONT,
+ .desc.enable_mask = DA9062AA_LDO2_EN_MASK,
+ .desc.vsel_reg = DA9062AA_VLDO2_A,
+ .desc.vsel_mask = DA9062AA_VLDO2_A_MASK,
+ .desc.linear_min_sel = 0,
+ .sleep = REG_FIELD(DA9062AA_VLDO2_A,
+ __builtin_ffs((int)DA9062AA_LDO2_SL_A_MASK) - 1,
+ sizeof(unsigned int) * 8 -
+ __builtin_clz((DA9062AA_LDO2_SL_A_MASK)) - 1),
+ .suspend_sleep = REG_FIELD(DA9062AA_VLDO2_B,
+ __builtin_ffs((int)DA9062AA_LDO2_SL_B_MASK) - 1,
+ sizeof(unsigned int) * 8 -
+ __builtin_clz((DA9062AA_LDO2_SL_B_MASK)) - 1),
+ .suspend_vsel_reg = DA9062AA_VLDO2_B,
+ .suspend = REG_FIELD(DA9062AA_DVC_1,
+ __builtin_ffs((int)DA9062AA_VLDO2_SEL_MASK) - 1,
+ sizeof(unsigned int) * 8 -
+ __builtin_clz((DA9062AA_VLDO2_SEL_MASK)) - 1),
+ .oc_event = REG_FIELD(DA9062AA_STATUS_D,
+ __builtin_ffs((int)DA9062AA_LDO2_ILIM_MASK) - 1,
+ sizeof(unsigned int) * 8 -
+ __builtin_clz((DA9062AA_LDO2_ILIM_MASK)) - 1),
+ },
+ {
+ .desc.id = DA9061_ID_LDO3,
+ .desc.name = "DA9061 LDO3",
+ .desc.of_match = of_match_ptr("ldo3"),
+ .desc.regulators_node = of_match_ptr("regulators"),
+ .desc.ops = &da9062_ldo_ops,
+ .desc.min_uV = (900) * 1000,
+ .desc.uV_step = (50) * 1000,
+ .desc.n_voltages = ((3600) - (900))/(50) + 1,
+ .desc.enable_reg = DA9062AA_LDO3_CONT,
+ .desc.enable_mask = DA9062AA_LDO3_EN_MASK,
+ .desc.vsel_reg = DA9062AA_VLDO3_A,
+ .desc.vsel_mask = DA9062AA_VLDO3_A_MASK,
+ .desc.linear_min_sel = 0,
+ .sleep = REG_FIELD(DA9062AA_VLDO3_A,
+ __builtin_ffs((int)DA9062AA_LDO3_SL_A_MASK) - 1,
+ sizeof(unsigned int) * 8 -
+ __builtin_clz((DA9062AA_LDO3_SL_A_MASK)) - 1),
+ .suspend_sleep = REG_FIELD(DA9062AA_VLDO3_B,
+ __builtin_ffs((int)DA9062AA_LDO3_SL_B_MASK) - 1,
+ sizeof(unsigned int) * 8 -
+ __builtin_clz((DA9062AA_LDO3_SL_B_MASK)) - 1),
+ .suspend_vsel_reg = DA9062AA_VLDO3_B,
+ .suspend = REG_FIELD(DA9062AA_DVC_1,
+ __builtin_ffs((int)DA9062AA_VLDO3_SEL_MASK) - 1,
+ sizeof(unsigned int) * 8 -
+ __builtin_clz((DA9062AA_VLDO3_SEL_MASK)) - 1),
+ .oc_event = REG_FIELD(DA9062AA_STATUS_D,
+ __builtin_ffs((int)DA9062AA_LDO3_ILIM_MASK) - 1,
+ sizeof(unsigned int) * 8 -
+ __builtin_clz((DA9062AA_LDO3_ILIM_MASK)) - 1),
+ },
+ {
+ .desc.id = DA9061_ID_LDO4,
+ .desc.name = "DA9061 LDO4",
+ .desc.of_match = of_match_ptr("ldo4"),
+ .desc.regulators_node = of_match_ptr("regulators"),
+ .desc.ops = &da9062_ldo_ops,
+ .desc.min_uV = (900) * 1000,
+ .desc.uV_step = (50) * 1000,
+ .desc.n_voltages = ((3600) - (900))/(50) + 1,
+ .desc.enable_reg = DA9062AA_LDO4_CONT,
+ .desc.enable_mask = DA9062AA_LDO4_EN_MASK,
+ .desc.vsel_reg = DA9062AA_VLDO4_A,
+ .desc.vsel_mask = DA9062AA_VLDO4_A_MASK,
+ .desc.linear_min_sel = 0,
+ .sleep = REG_FIELD(DA9062AA_VLDO4_A,
+ __builtin_ffs((int)DA9062AA_LDO4_SL_A_MASK) - 1,
+ sizeof(unsigned int) * 8 -
+ __builtin_clz((DA9062AA_LDO4_SL_A_MASK)) - 1),
+ .suspend_sleep = REG_FIELD(DA9062AA_VLDO4_B,
+ __builtin_ffs((int)DA9062AA_LDO4_SL_B_MASK) - 1,
+ sizeof(unsigned int) * 8 -
+ __builtin_clz((DA9062AA_LDO4_SL_B_MASK)) - 1),
+ .suspend_vsel_reg = DA9062AA_VLDO4_B,
+ .suspend = REG_FIELD(DA9062AA_DVC_1,
+ __builtin_ffs((int)DA9062AA_VLDO4_SEL_MASK) - 1,
+ sizeof(unsigned int) * 8 -
+ __builtin_clz((DA9062AA_VLDO4_SEL_MASK)) - 1),
+ .oc_event = REG_FIELD(DA9062AA_STATUS_D,
+ __builtin_ffs((int)DA9062AA_LDO4_ILIM_MASK) - 1,
+ sizeof(unsigned int) * 8 -
+ __builtin_clz((DA9062AA_LDO4_ILIM_MASK)) - 1),
+ },
+};
+
+/* DA9062 Regulator information */
+static const struct da9062_regulator_info local_da9062_regulator_info[] = {
{
.desc.id = DA9062_ID_BUCK1,
.desc.name = "DA9062 BUCK1",
@@ -727,17 +990,33 @@ static int da9062_regulator_probe(struct platform_device *pdev)
struct da9062_regulators *regulators;
struct da9062_regulator *regl;
struct regulator_config config = { };
+ const struct da9062_regulator_info *rinfo;
int irq, n, ret;
size_t size;
+ int max_regulators;
+
+ switch (chip->chip_type) {
+ case COMPAT_TYPE_DA9061:
+ max_regulators = DA9061_MAX_REGULATORS;
+ rinfo = local_da9061_regulator_info;
+ break;
+ case COMPAT_TYPE_DA9062:
+ max_regulators = DA9062_MAX_REGULATORS;
+ rinfo = local_da9062_regulator_info;
+ break;
+ default:
+ dev_err(chip->dev, "Unrecognised chip type\n");
+ return -ENODEV;
+ }
/* Allocate memory required by usable regulators */
size = sizeof(struct da9062_regulators) +
- DA9062_MAX_REGULATORS * sizeof(struct da9062_regulator);
+ max_regulators * sizeof(struct da9062_regulator);
regulators = devm_kzalloc(&pdev->dev, size, GFP_KERNEL);
if (!regulators)
return -ENOMEM;
- regulators->n_regulators = DA9062_MAX_REGULATORS;
+ regulators->n_regulators = max_regulators;
platform_set_drvdata(pdev, regulators);
n = 0;
@@ -745,7 +1024,7 @@ static int da9062_regulator_probe(struct platform_device *pdev)
/* Initialise regulator structure */
regl = ®ulators->regulator[n];
regl->hw = chip;
- regl->info = &local_regulator_info[n];
+ regl->info = &rinfo[n];
regl->desc = regl->info->desc;
regl->desc.type = REGULATOR_VOLTAGE;
regl->desc.owner = THIS_MODULE;
@@ -836,6 +1115,6 @@ module_exit(da9062_regulator_cleanup);
/* Module information */
MODULE_AUTHOR("S Twiss <stwiss.opensource@...semi.com>");
-MODULE_DESCRIPTION("REGULATOR device driver for Dialog DA9062");
+MODULE_DESCRIPTION("REGULATOR device driver for Dialog DA9062 and DA9061");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:da9062-regulators");
--
end-of-patch for PATCH V2
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