[PATCH v1 0/3] Add USB HS support for SM4250/6115

The USB controller found on SM4250/6115 is dwc3 (phy v1), very similar to
existing supported phys (like msm8996), with slighly different tune seq.

Iskren Chernev (3):
  dt-bindings: usb: qcom,dwc3: Add bindings for sm6115/4250
  dt-bindings: phy: qcom,qusb2: document sm4250/6115 compatible
  phy: qcom-qusb2: Add configuration for SM4250 and SM6115

 .../bindings/phy/qcom,qusb2-phy.yaml          |  2 ++
 .../devicetree/bindings/usb/qcom,dwc3.yaml    |  2 ++
 drivers/phy/qualcomm/phy-qcom-qusb2.c         | 34 +++++++++++++++++++
 3 files changed, 38 insertions(+)


base-commit: e71e3a48a7e89fa71fb70bf4602367528864d2ff
--
2.31.1

Add the compatible string for SM6115/4250 SoC from Qualcomm.

Signed-off-by: Iskren Chernev <iskren.chernev@gmail.com>
---
 Documentation/devicetree/bindings/usb/qcom,dwc3.yaml | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Documentation/devicetree/bindings/usb/qcom,dwc3.yaml b/Documentation/devicetree/bindings/usb/qcom,dwc3.yaml
index 413299b5fe2b..4e6451789806 100644
--- a/Documentation/devicetree/bindings/usb/qcom,dwc3.yaml
+++ b/Documentation/devicetree/bindings/usb/qcom,dwc3.yaml

@@ -19,6 +19,8 @@ properties:
           - qcom,sc7280-dwc3
           - qcom,sdm845-dwc3
           - qcom,sdx55-dwc3
+          - qcom,sm4250-dwc3
+          - qcom,sm6115-dwc3
           - qcom,sm8150-dwc3
           - qcom,sm8250-dwc3
           - qcom,sm8350-dwc3

-- 
2.31.1

On Tue 22 Jun 15:32 CDT 2021, Iskren Chernev wrote:

Add the compatible string for SM6115/4250 SoC from Qualcomm.

Signed-off-by: Iskren Chernev <iskren.chernev@gmail.com>

Reviewed-by: Bjorn Andersson <redacted>

Regards,
Bjorn

This compatible string is for the HS USB PHY on sm4250 and sm6115
platforms.

Signed-off-by: Iskren Chernev <iskren.chernev@gmail.com>
---
 Documentation/devicetree/bindings/phy/qcom,qusb2-phy.yaml | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Documentation/devicetree/bindings/phy/qcom,qusb2-phy.yaml b/Documentation/devicetree/bindings/phy/qcom,qusb2-phy.yaml
index 9f9cf07b7d45..70258540676a 100644
--- a/Documentation/devicetree/bindings/phy/qcom,qusb2-phy.yaml
+++ b/Documentation/devicetree/bindings/phy/qcom,qusb2-phy.yaml

@@ -23,6 +23,8 @@ properties:
               - qcom,msm8998-qusb2-phy
               - qcom,sdm660-qusb2-phy
               - qcom,ipq6018-qusb2-phy
+              - qcom,sm4250-qusb2-phy
+              - qcom,sm6115-qusb2-phy
       - items:
           - enum:
               - qcom,sc7180-qusb2-phy

-- 
2.31.1

On Tue 22 Jun 15:32 CDT 2021, Iskren Chernev wrote:

This compatible string is for the HS USB PHY on sm4250 and sm6115
platforms.

Reviewed-by: Bjorn Andersson <redacted>

Regards,
Bjorn

The SM4250 and SM6115 uses the same register layout as MSM8996, but the
tune sequence is a bit different.

Signed-off-by: Iskren Chernev <iskren.chernev@gmail.com>
---
 drivers/phy/qualcomm/phy-qcom-qusb2.c | 34 +++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)

diff --git a/drivers/phy/qualcomm/phy-qcom-qusb2.c b/drivers/phy/qualcomm/phy-qcom-qusb2.c
index 8f1bf7e2186b..3c1d3b71c825 100644
--- a/drivers/phy/qualcomm/phy-qcom-qusb2.c
+++ b/drivers/phy/qualcomm/phy-qcom-qusb2.c

@@ -219,6 +219,22 @@ static const struct qusb2_phy_init_tbl msm8998_init_tbl[] = {
 	QUSB2_PHY_INIT_CFG(QUSB2PHY_PLL_DIGITAL_TIMERS_TWO, 0x19),
 };
 
+static const struct qusb2_phy_init_tbl sm6115_init_tbl[] = {
+	QUSB2_PHY_INIT_CFG_L(QUSB2PHY_PORT_TUNE1, 0xf8),
+	QUSB2_PHY_INIT_CFG_L(QUSB2PHY_PORT_TUNE2, 0x53),
+	QUSB2_PHY_INIT_CFG_L(QUSB2PHY_PORT_TUNE3, 0x81),
+	QUSB2_PHY_INIT_CFG_L(QUSB2PHY_PORT_TUNE4, 0x17),
+
+	QUSB2_PHY_INIT_CFG(QUSB2PHY_PLL_TUNE, 0x30),
+	QUSB2_PHY_INIT_CFG(QUSB2PHY_PLL_USER_CTL1, 0x79),
+	QUSB2_PHY_INIT_CFG(QUSB2PHY_PLL_USER_CTL2, 0x21),
+
+	QUSB2_PHY_INIT_CFG_L(QUSB2PHY_PORT_TEST2, 0x14),
+
+	QUSB2_PHY_INIT_CFG(QUSB2PHY_PLL_AUTOPGM_CTL1, 0x9f),
+	QUSB2_PHY_INIT_CFG(QUSB2PHY_PLL_PWR_CTRL, 0x00),
+};
+
 static const unsigned int qusb2_v2_regs_layout[] = {
 	[QUSB2PHY_PLL_CORE_INPUT_OVERRIDE] = 0xa8,
 	[QUSB2PHY_PLL_STATUS]		= 0x1a0,

@@ -342,6 +358,18 @@ static const struct qusb2_phy_cfg sdm660_phy_cfg = {
 	.autoresume_en	 = BIT(3),
 };
 
+static const struct qusb2_phy_cfg sm6115_phy_cfg = {
+	.tbl		= sm6115_init_tbl,
+	.tbl_num	= ARRAY_SIZE(sm6115_init_tbl),
+	.regs		= msm8996_regs_layout,
+
+	.has_pll_test	= true,
+	.se_clk_scheme_default = true,
+	.disable_ctrl	= (CLAMP_N_EN | FREEZIO_N | POWER_DOWN),
+	.mask_core_ready = PLL_LOCKED,
+	.autoresume_en	 = BIT(3),
+};
+
 static const char * const qusb2_phy_vreg_names[] = {
 	"vdda-pll", "vdda-phy-dpdm",
 };

@@ -888,6 +916,12 @@ static const struct of_device_id qusb2_phy_of_match_table[] = {
 	}, {
 		.compatible	= "qcom,sdm660-qusb2-phy",
 		.data		= &sdm660_phy_cfg,
+	}, {
+		.compatible	= "qcom,sm4250-qusb2-phy",
+		.data		= &sm6115_phy_cfg,
+	}, {
+		.compatible	= "qcom,sm6115-qusb2-phy",
+		.data		= &sm6115_phy_cfg,
 	}, {
 		/*
 		 * Deprecated. Only here to support legacy device

-- 
2.31.1

On Tue 22 Jun 15:32 CDT 2021, Iskren Chernev wrote:

The SM4250 and SM6115 uses the same register layout as MSM8996, but the
tune sequence is a bit different.

Didn't review the initialization sequence, but it's different from the
existing ones so adding a new compatible and init_tbl seems to be the
right choice.

Reviewed-by: Bjorn Andersson <redacted>

Regards,
Bjorn

On 6/23/21 6:37 AM, Bjorn Andersson wrote:

On Tue 22 Jun 15:32 CDT 2021, Iskren Chernev wrote:

quoted

The SM4250 and SM6115 uses the same register layout as MSM8996, but the
tune sequence is a bit different.

Didn't review the initialization sequence, but it's different from the
existing ones so adding a new compatible and init_tbl seems to be the
right choice.

Here is the init sequence I'm using [1]

[1] https://github.com/OnePlusOSS/android_kernel_oneplus_sm4250/blob/oneplus/SM4250_Q_10.0/arch/arm64/boot/dts/vendor/20882/bengal-qrd.dtsi#L130

Reviewed-by: Bjorn Andersson <redacted>

Regards,
Bjorn

quoted

Signed-off-by: Iskren Chernev <iskren.chernev@gmail.com>
---
 drivers/phy/qualcomm/phy-qcom-qusb2.c | 34 +++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)

diff --git a/drivers/phy/qualcomm/phy-qcom-qusb2.c b/drivers/phy/qualcomm/phy-qcom-qusb2.c
index 8f1bf7e2186b..3c1d3b71c825 100644
--- a/drivers/phy/qualcomm/phy-qcom-qusb2.c
+++ b/drivers/phy/qualcomm/phy-qcom-qusb2.c

@@ -219,6 +219,22 @@ static const struct qusb2_phy_init_tbl msm8998_init_tbl[] = {
 	QUSB2_PHY_INIT_CFG(QUSB2PHY_PLL_DIGITAL_TIMERS_TWO, 0x19),
 };
 
+static const struct qusb2_phy_init_tbl sm6115_init_tbl[] = {
+	QUSB2_PHY_INIT_CFG_L(QUSB2PHY_PORT_TUNE1, 0xf8),
+	QUSB2_PHY_INIT_CFG_L(QUSB2PHY_PORT_TUNE2, 0x53),
+	QUSB2_PHY_INIT_CFG_L(QUSB2PHY_PORT_TUNE3, 0x81),
+	QUSB2_PHY_INIT_CFG_L(QUSB2PHY_PORT_TUNE4, 0x17),
+
+	QUSB2_PHY_INIT_CFG(QUSB2PHY_PLL_TUNE, 0x30),
+	QUSB2_PHY_INIT_CFG(QUSB2PHY_PLL_USER_CTL1, 0x79),
+	QUSB2_PHY_INIT_CFG(QUSB2PHY_PLL_USER_CTL2, 0x21),
+
+	QUSB2_PHY_INIT_CFG_L(QUSB2PHY_PORT_TEST2, 0x14),
+
+	QUSB2_PHY_INIT_CFG(QUSB2PHY_PLL_AUTOPGM_CTL1, 0x9f),
+	QUSB2_PHY_INIT_CFG(QUSB2PHY_PLL_PWR_CTRL, 0x00),
+};
+
 static const unsigned int qusb2_v2_regs_layout[] = {
 	[QUSB2PHY_PLL_CORE_INPUT_OVERRIDE] = 0xa8,
 	[QUSB2PHY_PLL_STATUS]		= 0x1a0,

@@ -342,6 +358,18 @@ static const struct qusb2_phy_cfg sdm660_phy_cfg = {
 	.autoresume_en	 = BIT(3),
 };
 
+static const struct qusb2_phy_cfg sm6115_phy_cfg = {
+	.tbl		= sm6115_init_tbl,
+	.tbl_num	= ARRAY_SIZE(sm6115_init_tbl),
+	.regs		= msm8996_regs_layout,
+
+	.has_pll_test	= true,
+	.se_clk_scheme_default = true,
+	.disable_ctrl	= (CLAMP_N_EN | FREEZIO_N | POWER_DOWN),
+	.mask_core_ready = PLL_LOCKED,
+	.autoresume_en	 = BIT(3),
+};
+
 static const char * const qusb2_phy_vreg_names[] = {
 	"vdda-pll", "vdda-phy-dpdm",
 };

@@ -888,6 +916,12 @@ static const struct of_device_id qusb2_phy_of_match_table[] = {
 	}, {
 		.compatible	= "qcom,sdm660-qusb2-phy",
 		.data		= &sdm660_phy_cfg,
+	}, {
+		.compatible	= "qcom,sm4250-qusb2-phy",
+		.data		= &sm6115_phy_cfg,
+	}, {
+		.compatible	= "qcom,sm6115-qusb2-phy",
+		.data		= &sm6115_phy_cfg,
 	}, {
 		/*
 		 * Deprecated. Only here to support legacy device

-- 
2.31.1