[PATCH v3 0/4] Qualcomm REFGEN regulator

[PATCH v3 0/4] Qualcomm REFGEN regulator

[Konrad Dybcio]

Recent Qualcomm SoCs have a REFGEN (reference voltage generator) regulator
responsible for providing a reference voltage to some on-SoC IPs (like DSI
or PHYs). It can be turned off when unused to save power.

This series introduces the driver for it and lets the DSI driver
consume it.

Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
---
Changes in v3:
- depend on HAS_IOMEM (s390 build failure, meh)
- constify regulator_ops
- Link to v2: https://lore.kernel.org/r/20230628-topic-refgen-v2-0-6136487c78c5@linaro.org

Changes in v2:
- Remove "|" from bindings description
- fix 'renegator' typo
- define number of 'reg'
- adjust reg= to size/address-cells = 1
- fix regmap usage
- use C++ comments for the header
- remove now-unused struct qcom_refgen
- use common helpers for sm8250 refgen (simple bit ops)
- add missing FIELD_PREPs (small brain forgot regmap_update_bits
  doesn't do shifting)
- pick up tags
- Link to v1: https://lore.kernel.org/r/20230628-topic-refgen-v1-0-126e59573eeb@linaro.org

---
Konrad Dybcio (4):
      dt-bindings: regulator: Describe Qualcomm REFGEN regulator
      regulator: Introduce Qualcomm REFGEN regulator driver
      dt-bindings: display/msm: dsi-controller-main: Allow refgen-supply
      drm/msm/dsi: Hook up refgen regulator

 .../bindings/display/msm/dsi-controller-main.yaml  |   4 +
 .../regulator/qcom,sdm845-refgen-regulator.yaml    |  57 ++++++++
 drivers/gpu/drm/msm/dsi/dsi_cfg.c                  |   2 +
 drivers/regulator/Kconfig                          |  11 ++
 drivers/regulator/Makefile                         |   1 +
 drivers/regulator/qcom-refgen-regulator.c          | 154 +++++++++++++++++++++
 6 files changed, 229 insertions(+)
---
base-commit: 296d53d8f84ce50ffaee7d575487058c8d437335
change-id: 20230628-topic-refgen-14fb0b762115

Best regards,
-- 
Konrad Dybcio <konrad.dybcio@linaro.org>

[PATCH v3 0/4] Qualcomm REFGEN regulator

[Konrad Dybcio]

Recent Qualcomm SoCs have a REFGEN (reference voltage generator) regulator
responsible for providing a reference voltage to some on-SoC IPs (like DSI
or PHYs). It can be turned off when unused to save power.

This series introduces the driver for it and lets the DSI driver
consume it.

Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
---
Changes in v3:
- depend on HAS_IOMEM (s390 build failure, meh)
- constify regulator_ops
- Link to v2: https://lore.kernel.org/r/20230628-topic-refgen-v2-0-6136487c78c5@linaro.org

Changes in v2:
- Remove "|" from bindings description
- fix 'renegator' typo
- define number of 'reg'
- adjust reg= to size/address-cells = 1
- fix regmap usage
- use C++ comments for the header
- remove now-unused struct qcom_refgen
- use common helpers for sm8250 refgen (simple bit ops)
- add missing FIELD_PREPs (small brain forgot regmap_update_bits
  doesn't do shifting)
- pick up tags
- Link to v1: https://lore.kernel.org/r/20230628-topic-refgen-v1-0-126e59573eeb@linaro.org

---
Konrad Dybcio (4):
      dt-bindings: regulator: Describe Qualcomm REFGEN regulator
      regulator: Introduce Qualcomm REFGEN regulator driver
      dt-bindings: display/msm: dsi-controller-main: Allow refgen-supply
      drm/msm/dsi: Hook up refgen regulator

 .../bindings/display/msm/dsi-controller-main.yaml  |   4 +
 .../regulator/qcom,sdm845-refgen-regulator.yaml    |  57 ++++++++
 drivers/gpu/drm/msm/dsi/dsi_cfg.c                  |   2 +
 drivers/regulator/Kconfig                          |  11 ++
 drivers/regulator/Makefile                         |   1 +
 drivers/regulator/qcom-refgen-regulator.c          | 154 +++++++++++++++++++++
 6 files changed, 229 insertions(+)
---
base-commit: 296d53d8f84ce50ffaee7d575487058c8d437335
change-id: 20230628-topic-refgen-14fb0b762115

Best regards,
-- 
Konrad Dybcio <konrad.dybcio@linaro.org>

[PATCH v3 1/4] dt-bindings: regulator: Describe Qualcomm REFGEN regulator

[Konrad Dybcio]

Modern Qualcomm SoCs have a REFGEN (reference voltage generator)
regulator, providing reference voltage to on-chip IP, like PHYs.
It's controlled through MMIO and we can toggle it or read its state back.

Describe it.

Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
---
 .../regulator/qcom,sdm845-refgen-regulator.yaml    | 57 ++++++++++++++++++++++
 1 file changed, 57 insertions(+)

diff --git a/Documentation/devicetree/bindings/regulator/qcom,sdm845-refgen-regulator.yaml b/Documentation/devicetree/bindings/regulator/qcom,sdm845-refgen-regulator.yaml
new file mode 100644
index 000000000000..f02f97d4fdd2
--- /dev/null
+++ b/Documentation/devicetree/bindings/regulator/qcom,sdm845-refgen-regulator.yaml
@@ -0,0 +1,57 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/regulator/qcom,sdm845-refgen-regulator.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Technologies, Inc. REFGEN Regulator
+
+maintainers:
+  - Konrad Dybcio <konradybcio@kernel.org>
+
+description:
+  The REFGEN (reference voltage generator) regulator provides reference
+  voltage for on-chip IPs (like PHYs) on some Qualcomm SoCs.
+
+allOf:
+  - $ref: regulator.yaml#
+
+properties:
+  compatible:
+    oneOf:
+      - items:
+          - enum:
+              - qcom,sc7180-refgen-regulator
+              - qcom,sc8180x-refgen-regulator
+              - qcom,sm8150-refgen-regulator
+          - const: qcom,sdm845-refgen-regulator
+
+      - items:
+          - enum:
+              - qcom,sc7280-refgen-regulator
+              - qcom,sc8280xp-refgen-regulator
+              - qcom,sm6350-refgen-regulator
+              - qcom,sm6375-refgen-regulator
+              - qcom,sm8350-refgen-regulator
+          - const: qcom,sm8250-refgen-regulator
+
+      - enum:
+          - qcom,sdm845-refgen-regulator
+          - qcom,sm8250-refgen-regulator
+
+  reg:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    regulator@162f000 {
+      compatible = "qcom,sm8250-refgen-regulator";
+      reg = <0x0162f000 0x84>;
+    };
+...

-- 
2.41.0

[PATCH v3 1/4] dt-bindings: regulator: Describe Qualcomm REFGEN regulator

[Konrad Dybcio]

Modern Qualcomm SoCs have a REFGEN (reference voltage generator)
regulator, providing reference voltage to on-chip IP, like PHYs.
It's controlled through MMIO and we can toggle it or read its state back.

Describe it.

Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
---
 .../regulator/qcom,sdm845-refgen-regulator.yaml    | 57 ++++++++++++++++++++++
 1 file changed, 57 insertions(+)

diff --git a/Documentation/devicetree/bindings/regulator/qcom,sdm845-refgen-regulator.yaml b/Documentation/devicetree/bindings/regulator/qcom,sdm845-refgen-regulator.yaml
new file mode 100644
index 000000000000..f02f97d4fdd2
--- /dev/null
+++ b/Documentation/devicetree/bindings/regulator/qcom,sdm845-refgen-regulator.yaml
@@ -0,0 +1,57 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/regulator/qcom,sdm845-refgen-regulator.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Technologies, Inc. REFGEN Regulator
+
+maintainers:
+  - Konrad Dybcio <konradybcio@kernel.org>
+
+description:
+  The REFGEN (reference voltage generator) regulator provides reference
+  voltage for on-chip IPs (like PHYs) on some Qualcomm SoCs.
+
+allOf:
+  - $ref: regulator.yaml#
+
+properties:
+  compatible:
+    oneOf:
+      - items:
+          - enum:
+              - qcom,sc7180-refgen-regulator
+              - qcom,sc8180x-refgen-regulator
+              - qcom,sm8150-refgen-regulator
+          - const: qcom,sdm845-refgen-regulator
+
+      - items:
+          - enum:
+              - qcom,sc7280-refgen-regulator
+              - qcom,sc8280xp-refgen-regulator
+              - qcom,sm6350-refgen-regulator
+              - qcom,sm6375-refgen-regulator
+              - qcom,sm8350-refgen-regulator
+          - const: qcom,sm8250-refgen-regulator
+
+      - enum:
+          - qcom,sdm845-refgen-regulator
+          - qcom,sm8250-refgen-regulator
+
+  reg:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    regulator@162f000 {
+      compatible = "qcom,sm8250-refgen-regulator";
+      reg = <0x0162f000 0x84>;
+    };
+...

-- 
2.41.0

[PATCH v3 2/4] regulator: Introduce Qualcomm REFGEN regulator driver

[Konrad Dybcio]

Modern Qualcomm SoCs have a REFGEN (reference voltage generator)
regulator, providing reference voltage to on-chip IP, like PHYs.

Add a driver to support toggling that regulator.

Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
---
 drivers/regulator/Kconfig                 |  11 +++
 drivers/regulator/Makefile                |   1 +
 drivers/regulator/qcom-refgen-regulator.c | 154 ++++++++++++++++++++++++++++++
 3 files changed, 166 insertions(+)

diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig
index 823f8e6e4801..18a05b09406f 100644
--- a/drivers/regulator/Kconfig
+++ b/drivers/regulator/Kconfig
@@ -989,6 +989,17 @@ config REGULATOR_PWM
 	  This driver supports PWM controlled voltage regulators. PWM
 	  duty cycle can increase or decrease the voltage.
 
+config REGULATOR_QCOM_REFGEN
+	tristate "Qualcomm REFGEN regulator driver"
+	depends on HAS_IOMEM
+	depends on REGMAP
+	help
+	  This driver supports the MMIO-mapped reference voltage regulator,
+	  used internally by some PHYs on many Qualcomm SoCs.
+
+	  Say M here if you want to include support for this regulator as
+	  a module. The module will be named "qcom-refgen-regulator".
+
 config REGULATOR_QCOM_RPM
 	tristate "Qualcomm RPM regulator driver"
 	depends on MFD_QCOM_RPM
diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile
index 15e0d614ff66..4f4589877e81 100644
--- a/drivers/regulator/Makefile
+++ b/drivers/regulator/Makefile
@@ -108,6 +108,7 @@ obj-$(CONFIG_REGULATOR_MT6380)	+= mt6380-regulator.o
 obj-$(CONFIG_REGULATOR_MT6397)	+= mt6397-regulator.o
 obj-$(CONFIG_REGULATOR_MTK_DVFSRC) += mtk-dvfsrc-regulator.o
 obj-$(CONFIG_REGULATOR_QCOM_LABIBB) += qcom-labibb-regulator.o
+obj-$(CONFIG_REGULATOR_QCOM_REFGEN) += qcom-refgen-regulator.o
 obj-$(CONFIG_REGULATOR_QCOM_RPM) += qcom_rpm-regulator.o
 obj-$(CONFIG_REGULATOR_QCOM_RPMH) += qcom-rpmh-regulator.o
 obj-$(CONFIG_REGULATOR_QCOM_SMD_RPM) += qcom_smd-regulator.o
diff --git a/drivers/regulator/qcom-refgen-regulator.c b/drivers/regulator/qcom-refgen-regulator.c
new file mode 100644
index 000000000000..656fe330d38f
--- /dev/null
+++ b/drivers/regulator/qcom-refgen-regulator.c
@@ -0,0 +1,154 @@
+// SPDX-License-Identifier: GPL-2.0-only
+// Copyright (c) 2017, 2019-2020, The Linux Foundation. All rights reserved.
+// Copyright (c) 2023, Linaro Limited
+
+#include <linux/bitfield.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+#include <linux/regulator/driver.h>
+#include <linux/regulator/machine.h>
+#include <linux/regulator/of_regulator.h>
+
+#define REFGEN_REG_BIAS_EN		0x08
+#define REFGEN_BIAS_EN_MASK		GENMASK(2, 0)
+ #define REFGEN_BIAS_EN_ENABLE		0x7
+ #define REFGEN_BIAS_EN_DISABLE		0x6
+
+#define REFGEN_REG_BG_CTRL		0x14
+#define REFGEN_BG_CTRL_MASK		GENMASK(2, 1)
+ #define REFGEN_BG_CTRL_ENABLE		0x3
+ #define REFGEN_BG_CTRL_DISABLE		0x2
+
+#define REFGEN_REG_PWRDWN_CTRL5		0x80
+#define REFGEN_PWRDWN_CTRL5_MASK	BIT(0)
+ #define REFGEN_PWRDWN_CTRL5_ENABLE	0x1
+
+static int qcom_sdm845_refgen_enable(struct regulator_dev *rdev)
+{
+	regmap_update_bits(rdev->regmap, REFGEN_REG_BG_CTRL, REFGEN_BG_CTRL_MASK,
+			   FIELD_PREP(REFGEN_BG_CTRL_MASK, REFGEN_BG_CTRL_ENABLE));
+
+	regmap_write(rdev->regmap, REFGEN_REG_BIAS_EN,
+		     FIELD_PREP(REFGEN_BIAS_EN_MASK, REFGEN_BIAS_EN_ENABLE));
+
+	return 0;
+}
+
+static int qcom_sdm845_refgen_disable(struct regulator_dev *rdev)
+{
+	regmap_write(rdev->regmap, REFGEN_REG_BIAS_EN,
+		     FIELD_PREP(REFGEN_BIAS_EN_MASK, REFGEN_BIAS_EN_DISABLE));
+
+	regmap_update_bits(rdev->regmap, REFGEN_REG_BG_CTRL, REFGEN_BG_CTRL_MASK,
+			   FIELD_PREP(REFGEN_BG_CTRL_MASK, REFGEN_BG_CTRL_DISABLE));
+
+	return 0;
+}
+
+static int qcom_sdm845_refgen_is_enabled(struct regulator_dev *rdev)
+{
+	u32 val;
+
+	regmap_read(rdev->regmap, REFGEN_REG_BG_CTRL, &val);
+	if (FIELD_GET(REFGEN_BG_CTRL_MASK, val) != REFGEN_BG_CTRL_ENABLE)
+		return 0;
+
+	regmap_read(rdev->regmap, REFGEN_REG_BIAS_EN, &val);
+	if (FIELD_GET(REFGEN_BIAS_EN_MASK, val) != REFGEN_BIAS_EN_ENABLE)
+		return 0;
+
+	return 1;
+}
+
+static struct regulator_desc sdm845_refgen_desc = {
+	.enable_time = 5,
+	.name = "refgen",
+	.owner = THIS_MODULE,
+	.type = REGULATOR_VOLTAGE,
+	.ops = &(const struct regulator_ops) {
+		.enable		= qcom_sdm845_refgen_enable,
+		.disable	= qcom_sdm845_refgen_disable,
+		.is_enabled	= qcom_sdm845_refgen_is_enabled,
+	},
+};
+
+static struct regulator_desc sm8250_refgen_desc = {
+	.enable_reg = REFGEN_REG_PWRDWN_CTRL5,
+	.enable_mask = REFGEN_PWRDWN_CTRL5_MASK,
+	.enable_val = REFGEN_PWRDWN_CTRL5_ENABLE,
+	.disable_val = 0,
+	.enable_time = 5,
+	.name = "refgen",
+	.owner = THIS_MODULE,
+	.type = REGULATOR_VOLTAGE,
+	.ops = &(const struct regulator_ops) {
+		.enable		= regulator_enable_regmap,
+		.disable	= regulator_disable_regmap,
+		.is_enabled	= regulator_is_enabled_regmap,
+	},
+};
+
+static const struct regmap_config qcom_refgen_regmap_config = {
+	.reg_bits = 32,
+	.reg_stride = 4,
+	.val_bits = 32,
+	.fast_io = true,
+};
+
+static int qcom_refgen_probe(struct platform_device *pdev)
+{
+	struct regulator_init_data *init_data;
+	struct regulator_config config = {};
+	const struct regulator_desc *rdesc;
+	struct device *dev = &pdev->dev;
+	struct regulator_dev *rdev;
+	struct regmap *regmap;
+	void __iomem *base;
+
+	rdesc = of_device_get_match_data(dev);
+	if (!rdesc)
+		return -ENODATA;
+
+	base = devm_platform_ioremap_resource(pdev, 0);
+	if (IS_ERR(base))
+		return PTR_ERR(base);
+
+	regmap = devm_regmap_init_mmio(dev, base, &qcom_refgen_regmap_config);
+	if (IS_ERR(regmap))
+		return PTR_ERR(regmap);
+
+	init_data = of_get_regulator_init_data(dev, dev->of_node, rdesc);
+	if (!init_data)
+		return -ENOMEM;
+
+	config.dev = dev;
+	config.init_data = init_data;
+	config.of_node = dev->of_node;
+	config.regmap = regmap;
+
+	rdev = devm_regulator_register(dev, rdesc, &config);
+	if (IS_ERR(rdev))
+		return PTR_ERR(rdev);
+
+	return 0;
+}
+
+static const struct of_device_id qcom_refgen_match_table[] = {
+	{ .compatible = "qcom,sdm845-refgen-regulator", .data = &sdm845_refgen_desc },
+	{ .compatible = "qcom,sm8250-refgen-regulator", .data = &sm8250_refgen_desc },
+	{ }
+};
+
+static struct platform_driver qcom_refgen_driver = {
+	.probe = qcom_refgen_probe,
+	.driver = {
+		.name = "qcom-refgen-regulator",
+		.of_match_table = qcom_refgen_match_table,
+	},
+};
+module_platform_driver(qcom_refgen_driver);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Qualcomm REFGEN regulator driver");

-- 
2.41.0

[PATCH v3 2/4] regulator: Introduce Qualcomm REFGEN regulator driver

[Konrad Dybcio]

Modern Qualcomm SoCs have a REFGEN (reference voltage generator)
regulator, providing reference voltage to on-chip IP, like PHYs.

Add a driver to support toggling that regulator.

Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
---
 drivers/regulator/Kconfig                 |  11 +++
 drivers/regulator/Makefile                |   1 +
 drivers/regulator/qcom-refgen-regulator.c | 154 ++++++++++++++++++++++++++++++
 3 files changed, 166 insertions(+)

diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig
index 823f8e6e4801..18a05b09406f 100644
--- a/drivers/regulator/Kconfig
+++ b/drivers/regulator/Kconfig
@@ -989,6 +989,17 @@ config REGULATOR_PWM
 	  This driver supports PWM controlled voltage regulators. PWM
 	  duty cycle can increase or decrease the voltage.
 
+config REGULATOR_QCOM_REFGEN
+	tristate "Qualcomm REFGEN regulator driver"
+	depends on HAS_IOMEM
+	depends on REGMAP
+	help
+	  This driver supports the MMIO-mapped reference voltage regulator,
+	  used internally by some PHYs on many Qualcomm SoCs.
+
+	  Say M here if you want to include support for this regulator as
+	  a module. The module will be named "qcom-refgen-regulator".
+
 config REGULATOR_QCOM_RPM
 	tristate "Qualcomm RPM regulator driver"
 	depends on MFD_QCOM_RPM
diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile
index 15e0d614ff66..4f4589877e81 100644
--- a/drivers/regulator/Makefile
+++ b/drivers/regulator/Makefile
@@ -108,6 +108,7 @@ obj-$(CONFIG_REGULATOR_MT6380)	+= mt6380-regulator.o
 obj-$(CONFIG_REGULATOR_MT6397)	+= mt6397-regulator.o
 obj-$(CONFIG_REGULATOR_MTK_DVFSRC) += mtk-dvfsrc-regulator.o
 obj-$(CONFIG_REGULATOR_QCOM_LABIBB) += qcom-labibb-regulator.o
+obj-$(CONFIG_REGULATOR_QCOM_REFGEN) += qcom-refgen-regulator.o
 obj-$(CONFIG_REGULATOR_QCOM_RPM) += qcom_rpm-regulator.o
 obj-$(CONFIG_REGULATOR_QCOM_RPMH) += qcom-rpmh-regulator.o
 obj-$(CONFIG_REGULATOR_QCOM_SMD_RPM) += qcom_smd-regulator.o
diff --git a/drivers/regulator/qcom-refgen-regulator.c b/drivers/regulator/qcom-refgen-regulator.c
new file mode 100644
index 000000000000..656fe330d38f
--- /dev/null
+++ b/drivers/regulator/qcom-refgen-regulator.c
@@ -0,0 +1,154 @@
+// SPDX-License-Identifier: GPL-2.0-only
+// Copyright (c) 2017, 2019-2020, The Linux Foundation. All rights reserved.
+// Copyright (c) 2023, Linaro Limited
+
+#include <linux/bitfield.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+#include <linux/regulator/driver.h>
+#include <linux/regulator/machine.h>
+#include <linux/regulator/of_regulator.h>
+
+#define REFGEN_REG_BIAS_EN		0x08
+#define REFGEN_BIAS_EN_MASK		GENMASK(2, 0)
+ #define REFGEN_BIAS_EN_ENABLE		0x7
+ #define REFGEN_BIAS_EN_DISABLE		0x6
+
+#define REFGEN_REG_BG_CTRL		0x14
+#define REFGEN_BG_CTRL_MASK		GENMASK(2, 1)
+ #define REFGEN_BG_CTRL_ENABLE		0x3
+ #define REFGEN_BG_CTRL_DISABLE		0x2
+
+#define REFGEN_REG_PWRDWN_CTRL5		0x80
+#define REFGEN_PWRDWN_CTRL5_MASK	BIT(0)
+ #define REFGEN_PWRDWN_CTRL5_ENABLE	0x1
+
+static int qcom_sdm845_refgen_enable(struct regulator_dev *rdev)
+{
+	regmap_update_bits(rdev->regmap, REFGEN_REG_BG_CTRL, REFGEN_BG_CTRL_MASK,
+			   FIELD_PREP(REFGEN_BG_CTRL_MASK, REFGEN_BG_CTRL_ENABLE));
+
+	regmap_write(rdev->regmap, REFGEN_REG_BIAS_EN,
+		     FIELD_PREP(REFGEN_BIAS_EN_MASK, REFGEN_BIAS_EN_ENABLE));
+
+	return 0;
+}
+
+static int qcom_sdm845_refgen_disable(struct regulator_dev *rdev)
+{
+	regmap_write(rdev->regmap, REFGEN_REG_BIAS_EN,
+		     FIELD_PREP(REFGEN_BIAS_EN_MASK, REFGEN_BIAS_EN_DISABLE));
+
+	regmap_update_bits(rdev->regmap, REFGEN_REG_BG_CTRL, REFGEN_BG_CTRL_MASK,
+			   FIELD_PREP(REFGEN_BG_CTRL_MASK, REFGEN_BG_CTRL_DISABLE));
+
+	return 0;
+}
+
+static int qcom_sdm845_refgen_is_enabled(struct regulator_dev *rdev)
+{
+	u32 val;
+
+	regmap_read(rdev->regmap, REFGEN_REG_BG_CTRL, &val);
+	if (FIELD_GET(REFGEN_BG_CTRL_MASK, val) != REFGEN_BG_CTRL_ENABLE)
+		return 0;
+
+	regmap_read(rdev->regmap, REFGEN_REG_BIAS_EN, &val);
+	if (FIELD_GET(REFGEN_BIAS_EN_MASK, val) != REFGEN_BIAS_EN_ENABLE)
+		return 0;
+
+	return 1;
+}
+
+static struct regulator_desc sdm845_refgen_desc = {
+	.enable_time = 5,
+	.name = "refgen",
+	.owner = THIS_MODULE,
+	.type = REGULATOR_VOLTAGE,
+	.ops = &(const struct regulator_ops) {
+		.enable		= qcom_sdm845_refgen_enable,
+		.disable	= qcom_sdm845_refgen_disable,
+		.is_enabled	= qcom_sdm845_refgen_is_enabled,
+	},
+};
+
+static struct regulator_desc sm8250_refgen_desc = {
+	.enable_reg = REFGEN_REG_PWRDWN_CTRL5,
+	.enable_mask = REFGEN_PWRDWN_CTRL5_MASK,
+	.enable_val = REFGEN_PWRDWN_CTRL5_ENABLE,
+	.disable_val = 0,
+	.enable_time = 5,
+	.name = "refgen",
+	.owner = THIS_MODULE,
+	.type = REGULATOR_VOLTAGE,
+	.ops = &(const struct regulator_ops) {
+		.enable		= regulator_enable_regmap,
+		.disable	= regulator_disable_regmap,
+		.is_enabled	= regulator_is_enabled_regmap,
+	},
+};
+
+static const struct regmap_config qcom_refgen_regmap_config = {
+	.reg_bits = 32,
+	.reg_stride = 4,
+	.val_bits = 32,
+	.fast_io = true,
+};
+
+static int qcom_refgen_probe(struct platform_device *pdev)
+{
+	struct regulator_init_data *init_data;
+	struct regulator_config config = {};
+	const struct regulator_desc *rdesc;
+	struct device *dev = &pdev->dev;
+	struct regulator_dev *rdev;
+	struct regmap *regmap;
+	void __iomem *base;
+
+	rdesc = of_device_get_match_data(dev);
+	if (!rdesc)
+		return -ENODATA;
+
+	base = devm_platform_ioremap_resource(pdev, 0);
+	if (IS_ERR(base))
+		return PTR_ERR(base);
+
+	regmap = devm_regmap_init_mmio(dev, base, &qcom_refgen_regmap_config);
+	if (IS_ERR(regmap))
+		return PTR_ERR(regmap);
+
+	init_data = of_get_regulator_init_data(dev, dev->of_node, rdesc);
+	if (!init_data)
+		return -ENOMEM;
+
+	config.dev = dev;
+	config.init_data = init_data;
+	config.of_node = dev->of_node;
+	config.regmap = regmap;
+
+	rdev = devm_regulator_register(dev, rdesc, &config);
+	if (IS_ERR(rdev))
+		return PTR_ERR(rdev);
+
+	return 0;
+}
+
+static const struct of_device_id qcom_refgen_match_table[] = {
+	{ .compatible = "qcom,sdm845-refgen-regulator", .data = &sdm845_refgen_desc },
+	{ .compatible = "qcom,sm8250-refgen-regulator", .data = &sm8250_refgen_desc },
+	{ }
+};
+
+static struct platform_driver qcom_refgen_driver = {
+	.probe = qcom_refgen_probe,
+	.driver = {
+		.name = "qcom-refgen-regulator",
+		.of_match_table = qcom_refgen_match_table,
+	},
+};
+module_platform_driver(qcom_refgen_driver);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Qualcomm REFGEN regulator driver");

-- 
2.41.0

[PATCH v3 3/4] dt-bindings: display/msm: dsi-controller-main: Allow refgen-supply

[Konrad Dybcio]

DSI host needs REFGEN to be enabled (if it's present on a given platform).
Allow consuming it.

Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
---
 .../devicetree/bindings/display/msm/dsi-controller-main.yaml          | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Documentation/devicetree/bindings/display/msm/dsi-controller-main.yaml b/Documentation/devicetree/bindings/display/msm/dsi-controller-main.yaml
index 01848bdd5873..76270992305a 100644
--- a/Documentation/devicetree/bindings/display/msm/dsi-controller-main.yaml
+++ b/Documentation/devicetree/bindings/display/msm/dsi-controller-main.yaml
@@ -166,6 +166,10 @@ properties:
     description:
       Phandle to vdd regulator device node
 
+  refgen-supply:
+    description:
+      Phandle to REFGEN regulator device node
+
   vcca-supply:
     description:
       Phandle to vdd regulator device node

-- 
2.41.0

[PATCH v3 3/4] dt-bindings: display/msm: dsi-controller-main: Allow refgen-supply

[Konrad Dybcio]

DSI host needs REFGEN to be enabled (if it's present on a given platform).
Allow consuming it.

Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
---
 .../devicetree/bindings/display/msm/dsi-controller-main.yaml          | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Documentation/devicetree/bindings/display/msm/dsi-controller-main.yaml b/Documentation/devicetree/bindings/display/msm/dsi-controller-main.yaml
index 01848bdd5873..76270992305a 100644
--- a/Documentation/devicetree/bindings/display/msm/dsi-controller-main.yaml
+++ b/Documentation/devicetree/bindings/display/msm/dsi-controller-main.yaml
@@ -166,6 +166,10 @@ properties:
     description:
       Phandle to vdd regulator device node
 
+  refgen-supply:
+    description:
+      Phandle to REFGEN regulator device node
+
   vcca-supply:
     description:
       Phandle to vdd regulator device node

-- 
2.41.0

[PATCH v3 4/4] drm/msm/dsi: Hook up refgen regulator

[Konrad Dybcio]

Consume the refgen supply on configurations that may use it.

Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
---
 drivers/gpu/drm/msm/dsi/dsi_cfg.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/msm/dsi/dsi_cfg.c b/drivers/gpu/drm/msm/dsi/dsi_cfg.c
index 8a5fb6df7210..1f98ff74ceb0 100644
--- a/drivers/gpu/drm/msm/dsi/dsi_cfg.c
+++ b/drivers/gpu/drm/msm/dsi/dsi_cfg.c
@@ -160,6 +160,7 @@ static const char * const dsi_v2_4_clk_names[] = {
 
 static const struct regulator_bulk_data dsi_v2_4_regulators[] = {
 	{ .supply = "vdda", .init_load_uA = 21800 },	/* 1.2 V */
+	{ .supply = "refgen" },
 };
 
 static const struct msm_dsi_config sdm845_dsi_cfg = {
@@ -191,6 +192,7 @@ static const struct msm_dsi_config sm8550_dsi_cfg = {
 
 static const struct regulator_bulk_data sc7280_dsi_regulators[] = {
 	{ .supply = "vdda", .init_load_uA = 8350 },	/* 1.2 V */
+	{ .supply = "refgen" },
 };
 
 static const struct msm_dsi_config sc7280_dsi_cfg = {

-- 
2.41.0

[PATCH v3 4/4] drm/msm/dsi: Hook up refgen regulator

[Konrad Dybcio]

Consume the refgen supply on configurations that may use it.

Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
---
 drivers/gpu/drm/msm/dsi/dsi_cfg.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/msm/dsi/dsi_cfg.c b/drivers/gpu/drm/msm/dsi/dsi_cfg.c
index 8a5fb6df7210..1f98ff74ceb0 100644
--- a/drivers/gpu/drm/msm/dsi/dsi_cfg.c
+++ b/drivers/gpu/drm/msm/dsi/dsi_cfg.c
@@ -160,6 +160,7 @@ static const char * const dsi_v2_4_clk_names[] = {
 
 static const struct regulator_bulk_data dsi_v2_4_regulators[] = {
 	{ .supply = "vdda", .init_load_uA = 21800 },	/* 1.2 V */
+	{ .supply = "refgen" },
 };
 
 static const struct msm_dsi_config sdm845_dsi_cfg = {
@@ -191,6 +192,7 @@ static const struct msm_dsi_config sm8550_dsi_cfg = {
 
 static const struct regulator_bulk_data sc7280_dsi_regulators[] = {
 	{ .supply = "vdda", .init_load_uA = 8350 },	/* 1.2 V */
+	{ .supply = "refgen" },
 };
 
 static const struct msm_dsi_config sc7280_dsi_cfg = {

-- 
2.41.0

Re: [PATCH v3 1/4] dt-bindings: regulator: Describe Qualcomm REFGEN regulator

[Konrad Dybcio]

On 3.07.2023 20:15, Konrad Dybcio wrote:
> Modern Qualcomm SoCs have a REFGEN (reference voltage generator)
> regulator, providing reference voltage to on-chip IP, like PHYs.
> It's controlled through MMIO and we can toggle it or read its state back.
> 
> Describe it.
> 
> Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
> ---
I have a chronic issue where I realize I didn't run b4 trailers -u the
milisecond I hit enter on b4 send.

This was:

Reviewed-by: Rob Herring <robh@kernel.org>

at

https://lore.kernel.org/linux-arm-msm/168814320140.1876966.17866889850041692910.robh@kernel.org/

Sorry for the inconvenience.

Konrad
>  .../regulator/qcom,sdm845-refgen-regulator.yaml    | 57 ++++++++++++++++++++++
>  1 file changed, 57 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/regulator/qcom,sdm845-refgen-regulator.yaml b/Documentation/devicetree/bindings/regulator/qcom,sdm845-refgen-regulator.yaml
> new file mode 100644
> index 000000000000..f02f97d4fdd2
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/regulator/qcom,sdm845-refgen-regulator.yaml
> @@ -0,0 +1,57 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/regulator/qcom,sdm845-refgen-regulator.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Qualcomm Technologies, Inc. REFGEN Regulator
> +
> +maintainers:
> +  - Konrad Dybcio <konradybcio@kernel.org>
> +
> +description:
> +  The REFGEN (reference voltage generator) regulator provides reference
> +  voltage for on-chip IPs (like PHYs) on some Qualcomm SoCs.
> +
> +allOf:
> +  - $ref: regulator.yaml#
> +
> +properties:
> +  compatible:
> +    oneOf:
> +      - items:
> +          - enum:
> +              - qcom,sc7180-refgen-regulator
> +              - qcom,sc8180x-refgen-regulator
> +              - qcom,sm8150-refgen-regulator
> +          - const: qcom,sdm845-refgen-regulator
> +
> +      - items:
> +          - enum:
> +              - qcom,sc7280-refgen-regulator
> +              - qcom,sc8280xp-refgen-regulator
> +              - qcom,sm6350-refgen-regulator
> +              - qcom,sm6375-refgen-regulator
> +              - qcom,sm8350-refgen-regulator
> +          - const: qcom,sm8250-refgen-regulator
> +
> +      - enum:
> +          - qcom,sdm845-refgen-regulator
> +          - qcom,sm8250-refgen-regulator
> +
> +  reg:
> +    maxItems: 1
> +
> +required:
> +  - compatible
> +  - reg
> +
> +unevaluatedProperties: false
> +
> +examples:
> +  - |
> +    regulator@162f000 {
> +      compatible = "qcom,sm8250-refgen-regulator";
> +      reg = <0x0162f000 0x84>;
> +    };
> +...
> 

Re: [PATCH v3 1/4] dt-bindings: regulator: Describe Qualcomm REFGEN regulator

[Konrad Dybcio]

On 3.07.2023 20:15, Konrad Dybcio wrote:
> Modern Qualcomm SoCs have a REFGEN (reference voltage generator)
> regulator, providing reference voltage to on-chip IP, like PHYs.
> It's controlled through MMIO and we can toggle it or read its state back.
> 
> Describe it.
> 
> Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
> ---
I have a chronic issue where I realize I didn't run b4 trailers -u the
milisecond I hit enter on b4 send.

This was:

Reviewed-by: Rob Herring <robh@kernel.org>

at

https://lore.kernel.org/linux-arm-msm/168814320140.1876966.17866889850041692910.robh@kernel.org/

Sorry for the inconvenience.

Konrad
>  .../regulator/qcom,sdm845-refgen-regulator.yaml    | 57 ++++++++++++++++++++++
>  1 file changed, 57 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/regulator/qcom,sdm845-refgen-regulator.yaml b/Documentation/devicetree/bindings/regulator/qcom,sdm845-refgen-regulator.yaml
> new file mode 100644
> index 000000000000..f02f97d4fdd2
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/regulator/qcom,sdm845-refgen-regulator.yaml
> @@ -0,0 +1,57 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/regulator/qcom,sdm845-refgen-regulator.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Qualcomm Technologies, Inc. REFGEN Regulator
> +
> +maintainers:
> +  - Konrad Dybcio <konradybcio@kernel.org>
> +
> +description:
> +  The REFGEN (reference voltage generator) regulator provides reference
> +  voltage for on-chip IPs (like PHYs) on some Qualcomm SoCs.
> +
> +allOf:
> +  - $ref: regulator.yaml#
> +
> +properties:
> +  compatible:
> +    oneOf:
> +      - items:
> +          - enum:
> +              - qcom,sc7180-refgen-regulator
> +              - qcom,sc8180x-refgen-regulator
> +              - qcom,sm8150-refgen-regulator
> +          - const: qcom,sdm845-refgen-regulator
> +
> +      - items:
> +          - enum:
> +              - qcom,sc7280-refgen-regulator
> +              - qcom,sc8280xp-refgen-regulator
> +              - qcom,sm6350-refgen-regulator
> +              - qcom,sm6375-refgen-regulator
> +              - qcom,sm8350-refgen-regulator
> +          - const: qcom,sm8250-refgen-regulator
> +
> +      - enum:
> +          - qcom,sdm845-refgen-regulator
> +          - qcom,sm8250-refgen-regulator
> +
> +  reg:
> +    maxItems: 1
> +
> +required:
> +  - compatible
> +  - reg
> +
> +unevaluatedProperties: false
> +
> +examples:
> +  - |
> +    regulator@162f000 {
> +      compatible = "qcom,sm8250-refgen-regulator";
> +      reg = <0x0162f000 0x84>;
> +    };
> +...
> 

Re: [PATCH v3 4/4] drm/msm/dsi: Hook up refgen regulator

[Dmitry Baryshkov]

On Mon, 3 Jul 2023 at 21:16, Konrad Dybcio <konrad.dybcio@linaro.org> wrote:
>
> Consume the refgen supply on configurations that may use it.
>
> Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>

Reviewed--by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

> ---
>  drivers/gpu/drm/msm/dsi/dsi_cfg.c | 2 ++
>  1 file changed, 2 insertions(+)

-- 
With best wishes
Dmitry

Re: [PATCH v3 4/4] drm/msm/dsi: Hook up refgen regulator

[Dmitry Baryshkov]

On Mon, 3 Jul 2023 at 21:16, Konrad Dybcio <konrad.dybcio@linaro.org> wrote:
>
> Consume the refgen supply on configurations that may use it.
>
> Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>

Reviewed--by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

> ---
>  drivers/gpu/drm/msm/dsi/dsi_cfg.c | 2 ++
>  1 file changed, 2 insertions(+)

-- 
With best wishes
Dmitry

Re: [PATCH v3 0/4] Qualcomm REFGEN regulator

[Mark Brown]

[-- Attachment #1: Type: text/plain, Size: 454 bytes --]

On Mon, Jul 03, 2023 at 08:15:53PM +0200, Konrad Dybcio wrote:

> Recent Qualcomm SoCs have a REFGEN (reference voltage generator) regulator
> responsible for providing a reference voltage to some on-SoC IPs (like DSI
> or PHYs). It can be turned off when unused to save power.
> 
> This series introduces the driver for it and lets the DSI driver
> consume it.

What's the expected plan for merging this - should I be applying the DRM
patch?

[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 488 bytes --]

Re: [PATCH v3 0/4] Qualcomm REFGEN regulator

[Mark Brown]

[-- Attachment #1: Type: text/plain, Size: 454 bytes --]

On Mon, Jul 03, 2023 at 08:15:53PM +0200, Konrad Dybcio wrote:

> Recent Qualcomm SoCs have a REFGEN (reference voltage generator) regulator
> responsible for providing a reference voltage to some on-SoC IPs (like DSI
> or PHYs). It can be turned off when unused to save power.
> 
> This series introduces the driver for it and lets the DSI driver
> consume it.

What's the expected plan for merging this - should I be applying the DRM
patch?

[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 488 bytes --]

Re: [PATCH v3 0/4] Qualcomm REFGEN regulator

[Konrad Dybcio]

On 4.07.2023 00:59, Mark Brown wrote:
> On Mon, Jul 03, 2023 at 08:15:53PM +0200, Konrad Dybcio wrote:
> 
>> Recent Qualcomm SoCs have a REFGEN (reference voltage generator) regulator
>> responsible for providing a reference voltage to some on-SoC IPs (like DSI
>> or PHYs). It can be turned off when unused to save power.
>>
>> This series introduces the driver for it and lets the DSI driver
>> consume it.
> 
> What's the expected plan for merging this - should I be applying the DRM
> patch?
Uh sorry for not clarifying.. please just take the first two.

Konrad

Re: [PATCH v3 0/4] Qualcomm REFGEN regulator

[Konrad Dybcio]

On 4.07.2023 00:59, Mark Brown wrote:
> On Mon, Jul 03, 2023 at 08:15:53PM +0200, Konrad Dybcio wrote:
> 
>> Recent Qualcomm SoCs have a REFGEN (reference voltage generator) regulator
>> responsible for providing a reference voltage to some on-SoC IPs (like DSI
>> or PHYs). It can be turned off when unused to save power.
>>
>> This series introduces the driver for it and lets the DSI driver
>> consume it.
> 
> What's the expected plan for merging this - should I be applying the DRM
> patch?
Uh sorry for not clarifying.. please just take the first two.

Konrad

Re: [PATCH v3 0/4] Qualcomm REFGEN regulator

[Dmitry Baryshkov]

On Tue, 4 Jul 2023 at 01:59, Mark Brown <broonie@kernel.org> wrote:
>
> On Mon, Jul 03, 2023 at 08:15:53PM +0200, Konrad Dybcio wrote:
>
> > Recent Qualcomm SoCs have a REFGEN (reference voltage generator) regulator
> > responsible for providing a reference voltage to some on-SoC IPs (like DSI
> > or PHYs). It can be turned off when unused to save power.
> >
> > This series introduces the driver for it and lets the DSI driver
> > consume it.
>
> What's the expected plan for merging this - should I be applying the DRM
> patch?

I'd pick the least two patches into msm-next after -rc1.

-- 
With best wishes
Dmitry

Re: [PATCH v3 0/4] Qualcomm REFGEN regulator

[Dmitry Baryshkov]

On Tue, 4 Jul 2023 at 01:59, Mark Brown <broonie@kernel.org> wrote:
>
> On Mon, Jul 03, 2023 at 08:15:53PM +0200, Konrad Dybcio wrote:
>
> > Recent Qualcomm SoCs have a REFGEN (reference voltage generator) regulator
> > responsible for providing a reference voltage to some on-SoC IPs (like DSI
> > or PHYs). It can be turned off when unused to save power.
> >
> > This series introduces the driver for it and lets the DSI driver
> > consume it.
>
> What's the expected plan for merging this - should I be applying the DRM
> patch?

I'd pick the least two patches into msm-next after -rc1.

-- 
With best wishes
Dmitry

Re: [PATCH v3 0/4] Qualcomm REFGEN regulator

[Dmitry Baryshkov]

On Mon, 03 Jul 2023 20:15:53 +0200, Konrad Dybcio wrote:
> Recent Qualcomm SoCs have a REFGEN (reference voltage generator) regulator
> responsible for providing a reference voltage to some on-SoC IPs (like DSI
> or PHYs). It can be turned off when unused to save power.
> 
> This series introduces the driver for it and lets the DSI driver
> consume it.
> 
> [...]

Applied, thanks!

[3/4] dt-bindings: display/msm: dsi-controller-main: Allow refgen-supply
      https://gitlab.freedesktop.org/lumag/msm/-/commit/f5cedc432fdf
[4/4] drm/msm/dsi: Hook up refgen regulator
      https://gitlab.freedesktop.org/lumag/msm/-/commit/4bc71795761b

Best regards,
-- 
Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

Re: [PATCH v3 0/4] Qualcomm REFGEN regulator

[Dmitry Baryshkov]

On Mon, 03 Jul 2023 20:15:53 +0200, Konrad Dybcio wrote:
> Recent Qualcomm SoCs have a REFGEN (reference voltage generator) regulator
> responsible for providing a reference voltage to some on-SoC IPs (like DSI
> or PHYs). It can be turned off when unused to save power.
> 
> This series introduces the driver for it and lets the DSI driver
> consume it.
> 
> [...]

Applied, thanks!

[3/4] dt-bindings: display/msm: dsi-controller-main: Allow refgen-supply
      https://gitlab.freedesktop.org/lumag/msm/-/commit/f5cedc432fdf
[4/4] drm/msm/dsi: Hook up refgen regulator
      https://gitlab.freedesktop.org/lumag/msm/-/commit/4bc71795761b

Best regards,
-- 
Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

Re: (subset) [PATCH v3 0/4] Qualcomm REFGEN regulator

[Mark Brown]

On Mon, 03 Jul 2023 20:15:53 +0200, Konrad Dybcio wrote:
> Recent Qualcomm SoCs have a REFGEN (reference voltage generator) regulator
> responsible for providing a reference voltage to some on-SoC IPs (like DSI
> or PHYs). It can be turned off when unused to save power.
> 
> This series introduces the driver for it and lets the DSI driver
> consume it.
> 
> [...]

Applied to

   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator.git for-next

Thanks!

[1/4] dt-bindings: regulator: Describe Qualcomm REFGEN regulator
      commit: d16db38c2a66060ee25c6b86ee7b6d66d40fc8e0
[2/4] regulator: Introduce Qualcomm REFGEN regulator driver
      commit: 7cbfbe23796086fdb72b681e2c182b02acd36a04

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

Thanks,
Mark

Re: (subset) [PATCH v3 0/4] Qualcomm REFGEN regulator

[Mark Brown]

On Mon, 03 Jul 2023 20:15:53 +0200, Konrad Dybcio wrote:
> Recent Qualcomm SoCs have a REFGEN (reference voltage generator) regulator
> responsible for providing a reference voltage to some on-SoC IPs (like DSI
> or PHYs). It can be turned off when unused to save power.
> 
> This series introduces the driver for it and lets the DSI driver
> consume it.
> 
> [...]

Applied to

   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator.git for-next

Thanks!

[1/4] dt-bindings: regulator: Describe Qualcomm REFGEN regulator
      commit: d16db38c2a66060ee25c6b86ee7b6d66d40fc8e0
[2/4] regulator: Introduce Qualcomm REFGEN regulator driver
      commit: 7cbfbe23796086fdb72b681e2c182b02acd36a04

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

Thanks,
Mark