[PATCH v2 0/8] PCI/phy: Add support for PCI on sm8350 platform

[PATCH v2 0/8] PCI/phy: Add support for PCI on sm8350 platform

[Dmitry Baryshkov]

SM8350 is one of the recent Qualcomm platforms which lacks PCIe support.
Use sm8450 PHY tables to add support for the PCIe hosts on Qualcomm SM8350 platform.

Note: the PCIe0 table is based on the lahaina-v2.1.dtsi file, so it
might work incorrectly on earlier SoC revisions.

Dependencies:
- phy/next (for PHY patches only)

Changes since v1:
 - removed pipe/ref clocks from the PCI schema, they are unused now
 - split the sm8450 tables commit into separate split & rename (Bjorn)
 - cleaned up the dtsi file, removing 'power-domain-names' and fixing
   gpio proprety names.

Dmitry Baryshkov (8):
  dt-bindings: PCI: qcom: Add sm8350 to bindings
  dt-bindings: phy: qcom,qmp-pcie: add sm8350 bindings
  PCI: qcom: Add support for SM8350
  phy: qcom-qmp-pcie: split sm8450 gen3 PHY config tables
  phy: qcom-qmp-pcie: rename the sm8450 gen3 PHY config tables
  phy: qcom-qmp-pcie: add support for sm8350 platform
  arm64: dts: qcom: sm8350: add PCIe devices
  arm64: dts: qcom: sm8350-hdk: enable PCIe devices

 .../devicetree/bindings/pci/qcom,pcie.yaml    |  46 ++++
 .../phy/qcom,sc8280xp-qmp-pcie-phy.yaml       |  22 ++
 arch/arm64/boot/dts/qcom/sm8350-hdk.dts       |  16 ++
 arch/arm64/boot/dts/qcom/sm8350.dtsi          | 246 +++++++++++++++++-
 drivers/pci/controller/dwc/pcie-qcom.c        |   1 +
 drivers/phy/qualcomm/phy-qcom-qmp-pcie.c      | 164 ++++++++++--
 6 files changed, 477 insertions(+), 18 deletions(-)

-- 
2.35.1

[PATCH v2 1/8] dt-bindings: PCI: qcom: Add sm8350 to bindings

[Dmitry Baryshkov]

Add bindings for two PCIe hosts on SM8350 platform. The only difference
between them is in the aggre0 clock, which warrants the oneOf clause for
the clocks properties.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
---
 .../devicetree/bindings/pci/qcom,pcie.yaml    | 46 +++++++++++++++++++
 1 file changed, 46 insertions(+)

diff --git a/Documentation/devicetree/bindings/pci/qcom,pcie.yaml b/Documentation/devicetree/bindings/pci/qcom,pcie.yaml
index 54f07852d279..502c15f7dd96 100644
--- a/Documentation/devicetree/bindings/pci/qcom,pcie.yaml
+++ b/Documentation/devicetree/bindings/pci/qcom,pcie.yaml
@@ -32,6 +32,7 @@ properties:
       - qcom,pcie-sdm845
       - qcom,pcie-sm8150
       - qcom,pcie-sm8250
+      - qcom,pcie-sm8350
       - qcom,pcie-sm8450-pcie0
       - qcom,pcie-sm8450-pcie1
       - qcom,pcie-ipq6018
@@ -185,6 +186,7 @@ allOf:
               - qcom,pcie-sc8180x
               - qcom,pcie-sc8280xp
               - qcom,pcie-sm8250
+              - qcom,pcie-sm8350
               - qcom,pcie-sm8450-pcie0
               - qcom,pcie-sm8450-pcie1
     then:
@@ -540,6 +542,49 @@ allOf:
           items:
             - const: pci # PCIe core reset
 
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - qcom,pcie-sm8350
+    then:
+      oneOf:
+          # Unfortunately the "optional" aggre0 clock is used in the middle of the list
+        - properties:
+            clocks:
+              maxItems: 9
+            clock-names:
+              items:
+                - const: aux # Auxiliary clock
+                - const: cfg # Configuration clock
+                - const: bus_master # Master AXI clock
+                - const: bus_slave # Slave AXI clock
+                - const: slave_q2a # Slave Q2A clock
+                - const: tbu # PCIe TBU clock
+                - const: ddrss_sf_tbu # PCIe SF TBU clock
+                - const: aggre0 # Aggre NoC PCIe0 AXI clock
+                - const: aggre1 # Aggre NoC PCIe1 AXI clock
+        - properties:
+            clocks:
+              maxItems: 8
+            clock-names:
+              items:
+                - const: aux # Auxiliary clock
+                - const: cfg # Configuration clock
+                - const: bus_master # Master AXI clock
+                - const: bus_slave # Slave AXI clock
+                - const: slave_q2a # Slave Q2A clock
+                - const: tbu # PCIe TBU clock
+                - const: ddrss_sf_tbu # PCIe SF TBU clock
+                - const: aggre1 # Aggre NoC PCIe1 AXI clock
+      properties:
+        resets:
+          maxItems: 1
+        reset-names:
+          items:
+            - const: pci # PCIe core reset
+
   - if:
       properties:
         compatible:
@@ -670,6 +715,7 @@ allOf:
               - qcom,pcie-sdm845
               - qcom,pcie-sm8150
               - qcom,pcie-sm8250
+              - qcom,pcie-sm8350
               - qcom,pcie-sm8450-pcie0
               - qcom,pcie-sm8450-pcie1
     then:
-- 
2.35.1

[PATCH v2 2/8] dt-bindings: phy: qcom,qmp-pcie: add sm8350 bindings

[Dmitry Baryshkov]

Add bindings for the PCIe QMP PHYs found on SM8350.

Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
---
 .../phy/qcom,sc8280xp-qmp-pcie-phy.yaml       | 22 +++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/Documentation/devicetree/bindings/phy/qcom,sc8280xp-qmp-pcie-phy.yaml b/Documentation/devicetree/bindings/phy/qcom,sc8280xp-qmp-pcie-phy.yaml
index 80aa8d2507fb..8a85318d9c92 100644
--- a/Documentation/devicetree/bindings/phy/qcom,sc8280xp-qmp-pcie-phy.yaml
+++ b/Documentation/devicetree/bindings/phy/qcom,sc8280xp-qmp-pcie-phy.yaml
@@ -19,15 +19,18 @@ properties:
       - qcom,sc8280xp-qmp-gen3x1-pcie-phy
       - qcom,sc8280xp-qmp-gen3x2-pcie-phy
       - qcom,sc8280xp-qmp-gen3x4-pcie-phy
+      - qcom,sm8350-qmp-gen3x1-pcie-phy
 
   reg:
     minItems: 1
     maxItems: 2
 
   clocks:
+    minItems: 5
     maxItems: 6
 
   clock-names:
+    minItems: 5
     items:
       - const: aux
       - const: cfg_ahb
@@ -104,6 +107,25 @@ allOf:
         reg:
           maxItems: 1
 
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - qcom,sm8350-qmp-gen3x1-pcie-phy
+    then:
+      properties:
+        clocks:
+          maxItems: 5
+        clock-names:
+          maxItems: 5
+    else:
+      properties:
+        clocks:
+          minItems: 6
+        clock-names:
+          minItems: 6
+
 examples:
   - |
     #include <dt-bindings/clock/qcom,gcc-sc8280xp.h>
-- 
2.35.1

[PATCH v2 3/8] PCI: qcom: Add support for SM8350

[Dmitry Baryshkov]

Add support for the PCIe host on Qualcomm SM8350 platform.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
---
 drivers/pci/controller/dwc/pcie-qcom.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/pci/controller/dwc/pcie-qcom.c b/drivers/pci/controller/dwc/pcie-qcom.c
index 7db94a22238d..3404c737afba 100644
--- a/drivers/pci/controller/dwc/pcie-qcom.c
+++ b/drivers/pci/controller/dwc/pcie-qcom.c
@@ -1750,6 +1750,7 @@ static const struct of_device_id qcom_pcie_match[] = {
 	{ .compatible = "qcom,pcie-sdm845", .data = &cfg_2_7_0 },
 	{ .compatible = "qcom,pcie-sm8150", .data = &cfg_1_9_0 },
 	{ .compatible = "qcom,pcie-sm8250", .data = &cfg_1_9_0 },
+	{ .compatible = "qcom,pcie-sm8350", .data = &cfg_1_9_0 },
 	{ .compatible = "qcom,pcie-sm8450-pcie0", .data = &cfg_1_9_0 },
 	{ .compatible = "qcom,pcie-sm8450-pcie1", .data = &cfg_1_9_0 },
 	{ }
-- 
2.35.1

[PATCH v2 4/8] phy: qcom-qmp-pcie: split sm8450 gen3 PHY config tables

[Dmitry Baryshkov]

SM8350 PHY config tables are mostly the same as SM8450 gen3 PHY config
tables. Split these tables to be used by SM8350 config.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
---
 drivers/phy/qualcomm/phy-qcom-qmp-pcie.c | 26 ++++++++++++++++++------
 1 file changed, 20 insertions(+), 6 deletions(-)

diff --git a/drivers/phy/qualcomm/phy-qcom-qmp-pcie.c b/drivers/phy/qualcomm/phy-qcom-qmp-pcie.c
index 47cccc4b35b2..d9f8dffbe1da 100644
--- a/drivers/phy/qualcomm/phy-qcom-qmp-pcie.c
+++ b/drivers/phy/qualcomm/phy-qcom-qmp-pcie.c
@@ -1252,7 +1252,6 @@ static const struct qmp_phy_init_tbl sm8450_qmp_gen3x1_pcie_serdes_tbl[] = {
 	QMP_PHY_INIT_CFG(QSERDES_V5_COM_BIN_VCOCAL_CMP_CODE1_MODE0, 0xca),
 	QMP_PHY_INIT_CFG(QSERDES_V5_COM_BIN_VCOCAL_CMP_CODE2_MODE1, 0x18),
 	QMP_PHY_INIT_CFG(QSERDES_V5_COM_BIN_VCOCAL_CMP_CODE1_MODE1, 0xa2),
-	QMP_PHY_INIT_CFG(QSERDES_V5_COM_SYSCLK_BUF_ENABLE, 0x07),
 	QMP_PHY_INIT_CFG(QSERDES_V5_COM_SSC_EN_CENTER, 0x01),
 	QMP_PHY_INIT_CFG(QSERDES_V5_COM_SSC_PER1, 0x31),
 	QMP_PHY_INIT_CFG(QSERDES_V5_COM_SSC_PER2, 0x01),
@@ -1263,6 +1262,10 @@ static const struct qmp_phy_init_tbl sm8450_qmp_gen3x1_pcie_serdes_tbl[] = {
 	QMP_PHY_INIT_CFG(QSERDES_V5_COM_CLK_ENABLE1, 0x90),
 };
 
+static const struct qmp_phy_init_tbl sm8450_qmp_gen3x1_pcie_rc_serdes_tbl[] = {
+	QMP_PHY_INIT_CFG(QSERDES_V5_COM_SYSCLK_BUF_ENABLE, 0x07),
+};
+
 static const struct qmp_phy_init_tbl sm8450_qmp_gen3x1_pcie_tx_tbl[] = {
 	QMP_PHY_INIT_CFG(QSERDES_V5_TX_PI_QEC_CTRL, 0x20),
 	QMP_PHY_INIT_CFG(QSERDES_V5_TX_LANE_MODE_1, 0x75),
@@ -1274,8 +1277,6 @@ static const struct qmp_phy_init_tbl sm8450_qmp_gen3x1_pcie_tx_tbl[] = {
 static const struct qmp_phy_init_tbl sm8450_qmp_gen3x1_pcie_rx_tbl[] = {
 	QMP_PHY_INIT_CFG(QSERDES_V5_RX_RX_MODE_00_LOW, 0x7f),
 	QMP_PHY_INIT_CFG(QSERDES_V5_RX_RX_MODE_00_HIGH, 0xff),
-	QMP_PHY_INIT_CFG(QSERDES_V5_RX_RX_MODE_00_HIGH2, 0xbf),
-	QMP_PHY_INIT_CFG(QSERDES_V5_RX_RX_MODE_00_HIGH3, 0x3f),
 	QMP_PHY_INIT_CFG(QSERDES_V5_RX_RX_MODE_00_HIGH4, 0xd8),
 	QMP_PHY_INIT_CFG(QSERDES_V5_RX_RX_MODE_01_LOW, 0xdc),
 	QMP_PHY_INIT_CFG(QSERDES_V5_RX_RX_MODE_01_HIGH, 0xdc),
@@ -1283,14 +1284,19 @@ static const struct qmp_phy_init_tbl sm8450_qmp_gen3x1_pcie_rx_tbl[] = {
 	QMP_PHY_INIT_CFG(QSERDES_V5_RX_RX_MODE_01_HIGH3, 0x34),
 	QMP_PHY_INIT_CFG(QSERDES_V5_RX_RX_MODE_01_HIGH4, 0xa6),
 	QMP_PHY_INIT_CFG(QSERDES_V5_RX_RX_MODE_10_HIGH3, 0x34),
-	QMP_PHY_INIT_CFG(QSERDES_V5_RX_RX_MODE_10_HIGH4, 0x38),
-	QMP_PHY_INIT_CFG(QSERDES_V5_RX_VGA_CAL_CNTRL2, 0x07),
 	QMP_PHY_INIT_CFG(QSERDES_V5_RX_GM_CAL, 0x00),
 	QMP_PHY_INIT_CFG(QSERDES_V5_RX_UCDR_SB2_THRESH1, 0x08),
 	QMP_PHY_INIT_CFG(QSERDES_V5_RX_UCDR_SB2_THRESH2, 0x08),
-	QMP_PHY_INIT_CFG(QSERDES_V5_RX_UCDR_PI_CONTROLS, 0xf0),
 	QMP_PHY_INIT_CFG(QSERDES_V5_RX_DFE_CTLE_POST_CAL_OFFSET, 0x38),
 	QMP_PHY_INIT_CFG(QSERDES_V5_RX_TX_ADAPT_POST_THRESH, 0xf0),
+};
+
+static const struct qmp_phy_init_tbl sm8450_qmp_gen3x1_pcie_rc_rx_tbl[] = {
+	QMP_PHY_INIT_CFG(QSERDES_V5_RX_RX_MODE_00_HIGH2, 0xbf),
+	QMP_PHY_INIT_CFG(QSERDES_V5_RX_RX_MODE_00_HIGH3, 0x3f),
+	QMP_PHY_INIT_CFG(QSERDES_V5_RX_RX_MODE_10_HIGH4, 0x38),
+	QMP_PHY_INIT_CFG(QSERDES_V5_RX_VGA_CAL_CNTRL2, 0x07),
+	QMP_PHY_INIT_CFG(QSERDES_V5_RX_UCDR_PI_CONTROLS, 0xf0),
 	QMP_PHY_INIT_CFG(QSERDES_V5_RX_RX_EQU_ADAPTOR_CNTRL4, 0x07),
 	QMP_PHY_INIT_CFG(QSERDES_V5_RX_UCDR_FO_GAIN, 0x09),
 	QMP_PHY_INIT_CFG(QSERDES_V5_RX_UCDR_SO_GAIN, 0x05),
@@ -2030,6 +2036,14 @@ static const struct qmp_phy_cfg sm8450_qmp_gen3x1_pciephy_cfg = {
 		.pcs_misc	= sm8450_qmp_gen3x1_pcie_pcs_misc_tbl,
 		.pcs_misc_num	= ARRAY_SIZE(sm8450_qmp_gen3x1_pcie_pcs_misc_tbl),
 	},
+
+	.tbls_rc = &(const struct qmp_phy_cfg_tbls) {
+		.serdes		= sm8450_qmp_gen3x1_pcie_rc_serdes_tbl,
+		.serdes_num	= ARRAY_SIZE(sm8450_qmp_gen3x1_pcie_rc_serdes_tbl),
+		.rx		= sm8450_qmp_gen3x1_pcie_rc_rx_tbl,
+		.rx_num		= ARRAY_SIZE(sm8450_qmp_gen3x1_pcie_rc_rx_tbl),
+	},
+
 	.clk_list		= sdm845_pciephy_clk_l,
 	.num_clks		= ARRAY_SIZE(sdm845_pciephy_clk_l),
 	.reset_list		= sdm845_pciephy_reset_l,
-- 
2.35.1

[PATCH v2 5/8] phy: qcom-qmp-pcie: rename the sm8450 gen3 PHY config tables

[Dmitry Baryshkov]

SM8350 PHY config tables are mostly the same as SM8450 gen3 PHY config
tables. Rename generic tables to remove x1 suffix.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
---
 drivers/phy/qualcomm/phy-qcom-qmp-pcie.c | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/drivers/phy/qualcomm/phy-qcom-qmp-pcie.c b/drivers/phy/qualcomm/phy-qcom-qmp-pcie.c
index d9f8dffbe1da..4a55b2439952 100644
--- a/drivers/phy/qualcomm/phy-qcom-qmp-pcie.c
+++ b/drivers/phy/qualcomm/phy-qcom-qmp-pcie.c
@@ -1218,7 +1218,7 @@ static const struct qmp_phy_init_tbl sdx55_qmp_pcie_pcs_misc_tbl[] = {
 	QMP_PHY_INIT_CFG(QPHY_V4_20_PCS_LANE1_INSIG_MX_CTRL2, 0x00),
 };
 
-static const struct qmp_phy_init_tbl sm8450_qmp_gen3x1_pcie_serdes_tbl[] = {
+static const struct qmp_phy_init_tbl sm8450_qmp_gen3_pcie_serdes_tbl[] = {
 	QMP_PHY_INIT_CFG(QSERDES_V5_COM_SYSCLK_EN_SEL, 0x08),
 	QMP_PHY_INIT_CFG(QSERDES_V5_COM_CLK_SELECT, 0x34),
 	QMP_PHY_INIT_CFG(QSERDES_V5_COM_CORECLK_DIV_MODE1, 0x08),
@@ -1274,7 +1274,7 @@ static const struct qmp_phy_init_tbl sm8450_qmp_gen3x1_pcie_tx_tbl[] = {
 	QMP_PHY_INIT_CFG(QSERDES_V5_TX_RES_CODE_LANE_OFFSET_RX, 0x04),
 };
 
-static const struct qmp_phy_init_tbl sm8450_qmp_gen3x1_pcie_rx_tbl[] = {
+static const struct qmp_phy_init_tbl sm8450_qmp_gen3_pcie_rx_tbl[] = {
 	QMP_PHY_INIT_CFG(QSERDES_V5_RX_RX_MODE_00_LOW, 0x7f),
 	QMP_PHY_INIT_CFG(QSERDES_V5_RX_RX_MODE_00_HIGH, 0xff),
 	QMP_PHY_INIT_CFG(QSERDES_V5_RX_RX_MODE_00_HIGH4, 0xd8),
@@ -1302,7 +1302,7 @@ static const struct qmp_phy_init_tbl sm8450_qmp_gen3x1_pcie_rc_rx_tbl[] = {
 	QMP_PHY_INIT_CFG(QSERDES_V5_RX_UCDR_SO_GAIN, 0x05),
 };
 
-static const struct qmp_phy_init_tbl sm8450_qmp_gen3x1_pcie_pcs_tbl[] = {
+static const struct qmp_phy_init_tbl sm8450_qmp_gen3_pcie_pcs_tbl[] = {
 	QMP_PHY_INIT_CFG(QPHY_V5_PCS_RX_SIGDET_LVL, 0x77),
 	QMP_PHY_INIT_CFG(QPHY_V5_PCS_RATE_SLEW_CNTRL1, 0x0b),
 	QMP_PHY_INIT_CFG(QPHY_V5_PCS_REFGEN_REQ_CONFIG1, 0x05),
@@ -2025,14 +2025,14 @@ static const struct qmp_phy_cfg sm8450_qmp_gen3x1_pciephy_cfg = {
 	.lanes			= 1,
 
 	.tbls = {
-		.serdes		= sm8450_qmp_gen3x1_pcie_serdes_tbl,
-		.serdes_num	= ARRAY_SIZE(sm8450_qmp_gen3x1_pcie_serdes_tbl),
+		.serdes		= sm8450_qmp_gen3_pcie_serdes_tbl,
+		.serdes_num	= ARRAY_SIZE(sm8450_qmp_gen3_pcie_serdes_tbl),
 		.tx		= sm8450_qmp_gen3x1_pcie_tx_tbl,
 		.tx_num		= ARRAY_SIZE(sm8450_qmp_gen3x1_pcie_tx_tbl),
-		.rx		= sm8450_qmp_gen3x1_pcie_rx_tbl,
-		.rx_num		= ARRAY_SIZE(sm8450_qmp_gen3x1_pcie_rx_tbl),
-		.pcs		= sm8450_qmp_gen3x1_pcie_pcs_tbl,
-		.pcs_num	= ARRAY_SIZE(sm8450_qmp_gen3x1_pcie_pcs_tbl),
+		.rx		= sm8450_qmp_gen3_pcie_rx_tbl,
+		.rx_num		= ARRAY_SIZE(sm8450_qmp_gen3_pcie_rx_tbl),
+		.pcs		= sm8450_qmp_gen3_pcie_pcs_tbl,
+		.pcs_num	= ARRAY_SIZE(sm8450_qmp_gen3_pcie_pcs_tbl),
 		.pcs_misc	= sm8450_qmp_gen3x1_pcie_pcs_misc_tbl,
 		.pcs_misc_num	= ARRAY_SIZE(sm8450_qmp_gen3x1_pcie_pcs_misc_tbl),
 	},
-- 
2.35.1

[PATCH v2 6/8] phy: qcom-qmp-pcie: add support for sm8350 platform

[Dmitry Baryshkov]

Add support for a single-lane and two-lane PCIe PHYs found on Qualcomm
SM8350 platform.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
---
 drivers/phy/qualcomm/phy-qcom-qmp-pcie.c | 120 ++++++++++++++++++++++-
 1 file changed, 119 insertions(+), 1 deletion(-)

diff --git a/drivers/phy/qualcomm/phy-qcom-qmp-pcie.c b/drivers/phy/qualcomm/phy-qcom-qmp-pcie.c
index 4a55b2439952..a1f5d31d161b 100644
--- a/drivers/phy/qualcomm/phy-qcom-qmp-pcie.c
+++ b/drivers/phy/qualcomm/phy-qcom-qmp-pcie.c
@@ -1315,6 +1315,40 @@ static const struct qmp_phy_init_tbl sm8450_qmp_gen3x1_pcie_pcs_misc_tbl[] = {
 	QMP_PHY_INIT_CFG(QPHY_V5_PCS_PCIE_ENDPOINT_REFCLK_DRIVE, 0xc1),
 };
 
+static const struct qmp_phy_init_tbl sm8350_qmp_gen3x1_pcie_tx_tbl[] = {
+	QMP_PHY_INIT_CFG(QSERDES_V5_TX_PI_QEC_CTRL, 0x20),
+	QMP_PHY_INIT_CFG(QSERDES_V5_TX_LANE_MODE_1, 0x75),
+	QMP_PHY_INIT_CFG(QSERDES_V5_TX_LANE_MODE_4, 0x3f),
+	QMP_PHY_INIT_CFG(QSERDES_V5_TX_RES_CODE_LANE_OFFSET_TX, 0x1d),
+	QMP_PHY_INIT_CFG(QSERDES_V5_TX_RES_CODE_LANE_OFFSET_RX, 0x0c),
+};
+
+static const struct qmp_phy_init_tbl sm8350_qmp_gen3x1_pcie_rc_rx_tbl[] = {
+	QMP_PHY_INIT_CFG(QSERDES_V5_RX_RX_MODE_00_HIGH2, 0xbf),
+	QMP_PHY_INIT_CFG(QSERDES_V5_RX_RX_MODE_00_HIGH3, 0x3f),
+	QMP_PHY_INIT_CFG(QSERDES_V5_RX_VGA_CAL_CNTRL2, 0x07),
+	QMP_PHY_INIT_CFG(QSERDES_V5_RX_UCDR_PI_CONTROLS, 0xf0),
+};
+
+static const struct qmp_phy_init_tbl sm8350_qmp_gen3x2_pcie_rc_rx_tbl[] = {
+	QMP_PHY_INIT_CFG(QSERDES_V5_RX_RX_MODE_00_HIGH2, 0x7f),
+	QMP_PHY_INIT_CFG(QSERDES_V5_RX_RX_MODE_00_HIGH3, 0x34),
+	QMP_PHY_INIT_CFG(QSERDES_V5_RX_VGA_CAL_CNTRL2, 0x0f),
+};
+
+static const struct qmp_phy_init_tbl sm8350_qmp_gen3x2_pcie_tx_tbl[] = {
+	QMP_PHY_INIT_CFG_LANE(QSERDES_V5_TX_PI_QEC_CTRL, 0x02, 1),
+	QMP_PHY_INIT_CFG_LANE(QSERDES_V5_TX_PI_QEC_CTRL, 0x04, 2),
+	QMP_PHY_INIT_CFG(QSERDES_V5_TX_LANE_MODE_1, 0xd5),
+	QMP_PHY_INIT_CFG(QSERDES_V5_TX_LANE_MODE_4, 0x3f),
+	QMP_PHY_INIT_CFG(QSERDES_V5_TX_RES_CODE_LANE_OFFSET_TX, 0x1d),
+	QMP_PHY_INIT_CFG(QSERDES_V5_TX_RES_CODE_LANE_OFFSET_RX, 0x0c),
+};
+
+static const struct qmp_phy_init_tbl sm8350_qmp_gen3x2_pcie_rc_pcs_tbl[] = {
+	QMP_PHY_INIT_CFG(QPHY_V5_PCS_EQ_CONFIG2, 0x0f),
+};
+
 static const struct qmp_phy_init_tbl sm8450_qmp_gen4x2_pcie_serdes_tbl[] = {
 	QMP_PHY_INIT_CFG(QSERDES_V5_COM_BIAS_EN_CLKBUFLR_EN, 0x14),
 	QMP_PHY_INIT_CFG(QSERDES_V5_COM_PLL_IVCO, 0x0f),
@@ -2021,6 +2055,80 @@ static const struct qmp_phy_cfg sdx55_qmp_pciephy_cfg = {
 	.phy_status		= PHYSTATUS_4_20,
 };
 
+static const struct qmp_phy_cfg sm8350_qmp_gen3x1_pciephy_cfg = {
+	.lanes			= 1,
+
+	.offsets		= &qmp_pcie_offsets_v5,
+
+	.tables = {
+		.serdes		= sm8450_qmp_gen3_pcie_serdes_tbl,
+		.serdes_num	= ARRAY_SIZE(sm8450_qmp_gen3_pcie_serdes_tbl),
+		.tx		= sm8350_qmp_gen3x1_pcie_tx_tbl,
+		.tx_num		= ARRAY_SIZE(sm8350_qmp_gen3x1_pcie_tx_tbl),
+		.rx		= sm8450_qmp_gen3_pcie_rx_tbl,
+		.rx_num		= ARRAY_SIZE(sm8450_qmp_gen3_pcie_rx_tbl),
+		.pcs		= sm8450_qmp_gen3_pcie_pcs_tbl,
+		.pcs_num	= ARRAY_SIZE(sm8450_qmp_gen3_pcie_pcs_tbl),
+		.pcs_misc	= sm8450_qmp_gen3x1_pcie_pcs_misc_tbl,
+		.pcs_misc_num	= ARRAY_SIZE(sm8450_qmp_gen3x1_pcie_pcs_misc_tbl),
+	},
+
+	.tables_rc = &(const struct qmp_phy_cfg_tables) {
+		.serdes		= sm8450_qmp_gen3x1_pcie_rc_serdes_tbl,
+		.serdes_num	= ARRAY_SIZE(sm8450_qmp_gen3x1_pcie_rc_serdes_tbl),
+		.rx		= sm8350_qmp_gen3x1_pcie_rc_rx_tbl,
+		.rx_num		= ARRAY_SIZE(sm8350_qmp_gen3x1_pcie_rc_rx_tbl),
+	},
+
+	.clk_list		= sc8280xp_pciephy_clk_l,
+	.num_clks		= ARRAY_SIZE(sc8280xp_pciephy_clk_l),
+	.reset_list		= sdm845_pciephy_reset_l,
+	.num_resets		= ARRAY_SIZE(sdm845_pciephy_reset_l),
+	.vreg_list		= qmp_phy_vreg_l,
+	.num_vregs		= ARRAY_SIZE(qmp_phy_vreg_l),
+	.regs			= sm8250_pcie_regs_layout,
+
+	.pwrdn_ctrl		= SW_PWRDN | REFCLK_DRV_DSBL,
+	.phy_status		= PHYSTATUS,
+};
+
+static const struct qmp_phy_cfg sm8350_qmp_gen3x2_pciephy_cfg = {
+	.lanes			= 2,
+
+	.offsets		= &qmp_pcie_offsets_v5,
+
+	.tables = {
+		.serdes		= sm8450_qmp_gen3_pcie_serdes_tbl,
+		.serdes_num	= ARRAY_SIZE(sm8450_qmp_gen3_pcie_serdes_tbl),
+		.tx		= sm8350_qmp_gen3x2_pcie_tx_tbl,
+		.tx_num		= ARRAY_SIZE(sm8350_qmp_gen3x2_pcie_tx_tbl),
+		.rx		= sm8450_qmp_gen3_pcie_rx_tbl,
+		.rx_num		= ARRAY_SIZE(sm8450_qmp_gen3_pcie_rx_tbl),
+		.pcs		= sm8450_qmp_gen3_pcie_pcs_tbl,
+		.pcs_num	= ARRAY_SIZE(sm8450_qmp_gen3_pcie_pcs_tbl),
+		.pcs_misc	= sc8280xp_qmp_gen3x2_pcie_pcs_misc_tbl,
+		.pcs_misc_num	= ARRAY_SIZE(sc8280xp_qmp_gen3x2_pcie_pcs_misc_tbl),
+	},
+
+	.tables_rc = &(const struct qmp_phy_cfg_tables) {
+		.rx		= sm8350_qmp_gen3x2_pcie_rc_rx_tbl,
+		.rx_num		= ARRAY_SIZE(sm8350_qmp_gen3x2_pcie_rc_rx_tbl),
+		.pcs		= sm8350_qmp_gen3x2_pcie_rc_pcs_tbl,
+		.pcs_num	= ARRAY_SIZE(sm8350_qmp_gen3x2_pcie_rc_pcs_tbl),
+	},
+
+	.clk_list		= sc8280xp_pciephy_clk_l,
+	.num_clks		= ARRAY_SIZE(sc8280xp_pciephy_clk_l),
+	.reset_list		= sdm845_pciephy_reset_l,
+	.num_resets		= ARRAY_SIZE(sdm845_pciephy_reset_l),
+	.vreg_list		= qmp_phy_vreg_l,
+	.num_vregs		= ARRAY_SIZE(qmp_phy_vreg_l),
+	.regs			= sm8250_pcie_regs_layout,
+
+	.pwrdn_ctrl		= SW_PWRDN | REFCLK_DRV_DSBL,
+	.phy_status		= PHYSTATUS,
+};
+
 static const struct qmp_phy_cfg sm8450_qmp_gen3x1_pciephy_cfg = {
 	.lanes			= 1,
 
@@ -2617,7 +2725,11 @@ static int qmp_pcie_parse_dt(struct qmp_pcie *qmp)
 	qmp->pipe_clks[0].id = "pipe";
 	qmp->pipe_clks[1].id = "pipediv2";
 
-	ret = devm_clk_bulk_get(dev, qmp->num_pipe_clks, qmp->pipe_clks);
+	ret = devm_clk_bulk_get(dev, 1, qmp->pipe_clks);
+	if (ret)
+		return ret;
+
+	ret = devm_clk_bulk_get_optional(dev, qmp->num_pipe_clks - 1, qmp->pipe_clks + 1);
 	if (ret)
 		return ret;
 
@@ -2737,6 +2849,12 @@ static const struct of_device_id qmp_pcie_of_match_table[] = {
 	}, {
 		.compatible = "qcom,sm8250-qmp-modem-pcie-phy",
 		.data = &sm8250_qmp_gen3x2_pciephy_cfg,
+	}, {
+		.compatible = "qcom,sm8350-qmp-gen3x1-pcie-phy",
+		.data = &sm8350_qmp_gen3x1_pciephy_cfg,
+	}, {
+		.compatible = "qcom,sm8350-qmp-gen3x2-pcie-phy",
+		.data = &sm8350_qmp_gen3x2_pciephy_cfg,
 	}, {
 		.compatible = "qcom,sm8450-qmp-gen3x1-pcie-phy",
 		.data = &sm8450_qmp_gen3x1_pciephy_cfg,
-- 
2.35.1

[PATCH v2 7/8] arm64: dts: qcom: sm8350: add PCIe devices

[Dmitry Baryshkov]

Add PCIe0 and PCIe1 (and corresponding PHY) devices found on SM8350
platform. The PCIe0 is a 1-lane Gen3 host, PCIe1 is a 2-lane Gen3 host.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
---
 arch/arm64/boot/dts/qcom/sm8350.dtsi | 246 ++++++++++++++++++++++++++-
 1 file changed, 244 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/sm8350.dtsi b/arch/arm64/boot/dts/qcom/sm8350.dtsi
index a86d9ea93b9d..90a26f406bf3 100644
--- a/arch/arm64/boot/dts/qcom/sm8350.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm8350.dtsi
@@ -656,8 +656,8 @@ gcc: clock-controller@100000 {
 				      "usb3_uni_phy_sec_gcc_usb30_pipe_clk";
 			clocks = <&rpmhcc RPMH_CXO_CLK>,
 				 <&sleep_clk>,
-				 <0>,
-				 <0>,
+				 <&pcie0_phy>,
+				 <&pcie1_phy>,
 				 <0>,
 				 <0>,
 				 <0>,
@@ -1582,6 +1582,202 @@ mmss_noc: interconnect@1740000 {
 			qcom,bcm-voters = <&apps_bcm_voter>;
 		};
 
+		pcie0: pci@1c00000 {
+			compatible = "qcom,pcie-sm8350";
+			reg = <0 0x01c00000 0 0x3000>,
+			      <0 0x60000000 0 0xf1d>,
+			      <0 0x60000f20 0 0xa8>,
+			      <0 0x60001000 0 0x1000>,
+			      <0 0x60100000 0 0x100000>;
+			reg-names = "parf", "dbi", "elbi", "atu", "config";
+			device_type = "pci";
+			linux,pci-domain = <0>;
+			bus-range = <0x00 0xff>;
+			num-lanes = <1>;
+
+			#address-cells = <3>;
+			#size-cells = <2>;
+
+			ranges = <0x01000000 0x0 0x60200000 0 0x60200000 0x0 0x100000>,
+				 <0x02000000 0x0 0x60300000 0 0x60300000 0x0 0x3d00000>;
+
+			interrupts = <GIC_SPI 141 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 142 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 143 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 144 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 145 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 146 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 147 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 148 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-names = "msi0", "msi1", "msi2", "msi3",
+					  "msi4", "msi5", "msi6", "msi7";
+			#interrupt-cells = <1>;
+			interrupt-map-mask = <0 0 0 0x7>;
+			interrupt-map = <0 0 0 1 &intc 0 149 IRQ_TYPE_LEVEL_HIGH>, /* int_a */
+					<0 0 0 2 &intc 0 150 IRQ_TYPE_LEVEL_HIGH>, /* int_b */
+					<0 0 0 3 &intc 0 151 IRQ_TYPE_LEVEL_HIGH>, /* int_c */
+					<0 0 0 4 &intc 0 152 IRQ_TYPE_LEVEL_HIGH>; /* int_d */
+
+			clocks = <&gcc GCC_PCIE_0_AUX_CLK>,
+				 <&gcc GCC_PCIE_0_CFG_AHB_CLK>,
+				 <&gcc GCC_PCIE_0_MSTR_AXI_CLK>,
+				 <&gcc GCC_PCIE_0_SLV_AXI_CLK>,
+				 <&gcc GCC_PCIE_0_SLV_Q2A_AXI_CLK>,
+				 <&gcc GCC_AGGRE_NOC_PCIE_TBU_CLK>,
+				 <&gcc GCC_DDRSS_PCIE_SF_TBU_CLK>,
+				 <&gcc GCC_AGGRE_NOC_PCIE_0_AXI_CLK>,
+				 <&gcc GCC_AGGRE_NOC_PCIE_1_AXI_CLK>;
+			clock-names = "aux",
+				      "cfg",
+				      "bus_master",
+				      "bus_slave",
+				      "slave_q2a",
+				      "tbu",
+				      "ddrss_sf_tbu",
+				      "aggre0",
+				      "aggre1";
+
+			iommus = <&apps_smmu 0x1c00 0x7f>;
+			iommu-map = <0x0   &apps_smmu 0x1c00 0x1>,
+				    <0x100 &apps_smmu 0x1c01 0x1>;
+
+			resets = <&gcc GCC_PCIE_0_BCR>;
+			reset-names = "pci";
+
+			power-domains = <&gcc PCIE_0_GDSC>;
+
+			phys = <&pcie0_phy>;
+			phy-names = "pciephy";
+
+			perst-gpios = <&tlmm 94 GPIO_ACTIVE_LOW>;
+			wake-gpios = <&tlmm 96 GPIO_ACTIVE_HIGH>;
+
+			pinctrl-names = "default";
+			pinctrl-0 = <&pcie0_default_state>;
+
+			status = "disabled";
+		};
+
+		pcie0_phy: phy@1c06000 {
+			compatible = "qcom,sm8350-qmp-gen3x1-pcie-phy";
+			reg = <0 0x01c06000 0 0x2000>;
+			#address-cells = <2>;
+			#size-cells = <2>;
+			ranges;
+			clocks = <&gcc GCC_PCIE_0_AUX_CLK>,
+				 <&gcc GCC_PCIE_0_CFG_AHB_CLK>,
+				 <&gcc GCC_PCIE_0_CLKREF_EN>,
+				 <&gcc GCC_PCIE0_PHY_RCHNG_CLK>,
+				 <&gcc GCC_PCIE_0_PIPE_CLK>;
+			clock-names = "aux", "cfg_ahb", "ref", "rchng", "pipe";
+
+			resets = <&gcc GCC_PCIE_0_PHY_BCR>;
+			reset-names = "phy";
+
+			assigned-clocks = <&gcc GCC_PCIE0_PHY_RCHNG_CLK>;
+			assigned-clock-rates = <100000000>;
+
+			#clock-cells = <0>;
+			clock-output-names = "pcie_0_pipe_clk";
+
+			#phy-cells = <0>;
+
+			status = "disabled";
+		};
+
+		pcie1: pci@1c08000 {
+			compatible = "qcom,pcie-sm8350";
+			reg = <0 0x01c08000 0 0x3000>,
+			      <0 0x40000000 0 0xf1d>,
+			      <0 0x40000f20 0 0xa8>,
+			      <0 0x40001000 0 0x1000>,
+			      <0 0x40100000 0 0x100000>;
+			reg-names = "parf", "dbi", "elbi", "atu", "config";
+			device_type = "pci";
+			linux,pci-domain = <1>;
+			bus-range = <0x00 0xff>;
+			num-lanes = <2>;
+
+			#address-cells = <3>;
+			#size-cells = <2>;
+
+			ranges = <0x01000000 0x0 0x40200000 0 0x40200000 0x0 0x100000>,
+				 <0x02000000 0x0 0x40300000 0 0x40300000 0x0 0x1fd00000>;
+
+			interrupts = <GIC_SPI 307 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-names = "msi";
+			#interrupt-cells = <1>;
+			interrupt-map-mask = <0 0 0 0x7>;
+			interrupt-map = <0 0 0 1 &intc 0 434 IRQ_TYPE_LEVEL_HIGH>, /* int_a */
+					<0 0 0 2 &intc 0 435 IRQ_TYPE_LEVEL_HIGH>, /* int_b */
+					<0 0 0 3 &intc 0 438 IRQ_TYPE_LEVEL_HIGH>, /* int_c */
+					<0 0 0 4 &intc 0 439 IRQ_TYPE_LEVEL_HIGH>; /* int_d */
+
+			clocks = <&gcc GCC_PCIE_1_AUX_CLK>,
+				 <&gcc GCC_PCIE_1_CFG_AHB_CLK>,
+				 <&gcc GCC_PCIE_1_MSTR_AXI_CLK>,
+				 <&gcc GCC_PCIE_1_SLV_AXI_CLK>,
+				 <&gcc GCC_PCIE_1_SLV_Q2A_AXI_CLK>,
+				 <&gcc GCC_AGGRE_NOC_PCIE_TBU_CLK>,
+				 <&gcc GCC_DDRSS_PCIE_SF_TBU_CLK>,
+				 <&gcc GCC_AGGRE_NOC_PCIE_1_AXI_CLK>;
+			clock-names = "aux",
+				      "cfg",
+				      "bus_master",
+				      "bus_slave",
+				      "slave_q2a",
+				      "tbu",
+				      "ddrss_sf_tbu",
+				      "aggre1";
+
+			iommus = <&apps_smmu 0x1c80 0x7f>;
+			iommu-map = <0x0   &apps_smmu 0x1c80 0x1>,
+				    <0x100 &apps_smmu 0x1c81 0x1>;
+
+			resets = <&gcc GCC_PCIE_1_BCR>;
+			reset-names = "pci";
+
+			power-domains = <&gcc PCIE_1_GDSC>;
+
+			phys = <&pcie1_phy>;
+			phy-names = "pciephy";
+
+			perst-gpios = <&tlmm 97 GPIO_ACTIVE_LOW>;
+			wake-gpios = <&tlmm 99 GPIO_ACTIVE_HIGH>;
+
+			pinctrl-names = "default";
+			pinctrl-0 = <&pcie1_default_state>;
+
+			status = "disabled";
+		};
+
+		pcie1_phy: phy@1c0f000 {
+			compatible = "qcom,sm8350-qmp-gen3x2-pcie-phy";
+			reg = <0 0x01c0e000 0 0x2000>;
+			#address-cells = <2>;
+			#size-cells = <2>;
+			ranges;
+			clocks = <&gcc GCC_PCIE_1_AUX_CLK>,
+				 <&gcc GCC_PCIE_1_CFG_AHB_CLK>,
+				 <&gcc GCC_PCIE_1_CLKREF_EN>,
+				 <&gcc GCC_PCIE1_PHY_RCHNG_CLK>,
+				 <&gcc GCC_PCIE_1_PIPE_CLK>;
+			clock-names = "aux", "cfg_ahb", "ref", "rchng", "pipe";
+
+			resets = <&gcc GCC_PCIE_1_PHY_BCR>;
+			reset-names = "phy";
+
+			assigned-clocks = <&gcc GCC_PCIE1_PHY_RCHNG_CLK>;
+			assigned-clock-rates = <100000000>;
+
+			#clock-cells = <0>;
+			clock-output-names = "pcie_1_pipe_clk";
+
+			#phy-cells = <0>;
+
+			status = "disabled";
+		};
+
 		lpass_ag_noc: interconnect@3c40000 {
 			compatible = "qcom,sm8350-lpass-ag-noc";
 			reg = <0 0x03c40000 0 0xf080>;
@@ -1761,6 +1957,52 @@ tlmm: pinctrl@f100000 {
 			gpio-ranges = <&tlmm 0 0 204>;
 			wakeup-parent = <&pdc>;
 
+			pcie0_default_state: pcie0-default-state {
+				perst-pins {
+					pins = "gpio94";
+					function = "gpio";
+					drive-strength = <2>;
+					bias-pull-down;
+				};
+
+				clkreq-pins {
+					pins = "gpio95";
+					function = "pcie0_clkreqn";
+					drive-strength = <2>;
+					bias-pull-up;
+				};
+
+				wake-pins {
+					pins = "gpio96";
+					function = "gpio";
+					drive-strength = <2>;
+					bias-pull-up;
+				};
+			};
+
+			pcie1_default_state: pcie1-default-state {
+				perst-pins {
+					pins = "gpio97";
+					function = "gpio";
+					drive-strength = <2>;
+					bias-pull-down;
+				};
+
+				clkreq-pins {
+					pins = "gpio98";
+					function = "pcie1_clkreqn";
+					drive-strength = <2>;
+					bias-pull-up;
+				};
+
+				wake-pins {
+					pins = "gpio99";
+					function = "gpio";
+					drive-strength = <2>;
+					bias-pull-up;
+				};
+			};
+
 			qup_uart3_default_state: qup-uart3-default-state {
 				rx-pins {
 					pins = "gpio18";
-- 
2.35.1

[PATCH v2 8/8] arm64: dts: qcom: sm8350-hdk: enable PCIe devices

[Dmitry Baryshkov]

Enable PCIe0 and PCIe1 hosts found on SM8350 HDK board.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
---
 arch/arm64/boot/dts/qcom/sm8350-hdk.dts | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sm8350-hdk.dts b/arch/arm64/boot/dts/qcom/sm8350-hdk.dts
index 0fcf5bd88fc7..58a9dc7705a5 100644
--- a/arch/arm64/boot/dts/qcom/sm8350-hdk.dts
+++ b/arch/arm64/boot/dts/qcom/sm8350-hdk.dts
@@ -222,6 +222,22 @@ &mpss {
 	firmware-name = "qcom/sm8350/modem.mbn";
 };
 
+&pcie0 {
+	status = "okay";
+};
+
+&pcie0_phy {
+	status = "okay";
+};
+
+&pcie1 {
+	status = "okay";
+};
+
+&pcie1_phy {
+	status = "okay";
+};
+
 &qupv3_id_0 {
 	status = "okay";
 };
-- 
2.35.1

Re: [PATCH v2 8/8] arm64: dts: qcom: sm8350-hdk: enable PCIe devices

[Johan Hovold]

On Thu, Nov 10, 2022 at 01:33:45PM +0300, Dmitry Baryshkov wrote:
> Enable PCIe0 and PCIe1 hosts found on SM8350 HDK board.
> 
> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
> ---
>  arch/arm64/boot/dts/qcom/sm8350-hdk.dts | 16 ++++++++++++++++
>  1 file changed, 16 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sm8350-hdk.dts b/arch/arm64/boot/dts/qcom/sm8350-hdk.dts
> index 0fcf5bd88fc7..58a9dc7705a5 100644
> --- a/arch/arm64/boot/dts/qcom/sm8350-hdk.dts
> +++ b/arch/arm64/boot/dts/qcom/sm8350-hdk.dts
> @@ -222,6 +222,22 @@ &mpss {
>  	firmware-name = "qcom/sm8350/modem.mbn";
>  };
>  
> +&pcie0 {
> +	status = "okay";
> +};
> +
> +&pcie0_phy {
> +	status = "okay";
> +};

Looks like the required regulators are missing from the PHY nodes.

Johan

Re: [PATCH v2 7/8] arm64: dts: qcom: sm8350: add PCIe devices

[Johan Hovold]

On Thu, Nov 10, 2022 at 01:33:44PM +0300, Dmitry Baryshkov wrote:
> Add PCIe0 and PCIe1 (and corresponding PHY) devices found on SM8350
> platform. The PCIe0 is a 1-lane Gen3 host, PCIe1 is a 2-lane Gen3 host.
> 
> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
> ---
>  arch/arm64/boot/dts/qcom/sm8350.dtsi | 246 ++++++++++++++++++++++++++-
>  1 file changed, 244 insertions(+), 2 deletions(-)

> @@ -1761,6 +1957,52 @@ tlmm: pinctrl@f100000 {
>  			gpio-ranges = <&tlmm 0 0 204>;
>  			wakeup-parent = <&pdc>;
>  
> +			pcie0_default_state: pcie0-default-state {
> +				perst-pins {
> +					pins = "gpio94";
> +					function = "gpio";
> +					drive-strength = <2>;
> +					bias-pull-down;
> +				};
> +
> +				clkreq-pins {
> +					pins = "gpio95";
> +					function = "pcie0_clkreqn";
> +					drive-strength = <2>;
> +					bias-pull-up;
> +				};
> +
> +				wake-pins {
> +					pins = "gpio96";
> +					function = "gpio";
> +					drive-strength = <2>;
> +					bias-pull-up;
> +				};
> +			};

The pinconfig should go in the board file.

Johan

Re: [PATCH v2 8/8] arm64: dts: qcom: sm8350-hdk: enable PCIe devices

[Dmitry Baryshkov]

On 10/11/2022 13:51, Johan Hovold wrote:
> On Thu, Nov 10, 2022 at 01:33:45PM +0300, Dmitry Baryshkov wrote:
>> Enable PCIe0 and PCIe1 hosts found on SM8350 HDK board.
>>
>> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
>> ---
>>   arch/arm64/boot/dts/qcom/sm8350-hdk.dts | 16 ++++++++++++++++
>>   1 file changed, 16 insertions(+)
>>
>> diff --git a/arch/arm64/boot/dts/qcom/sm8350-hdk.dts b/arch/arm64/boot/dts/qcom/sm8350-hdk.dts
>> index 0fcf5bd88fc7..58a9dc7705a5 100644
>> --- a/arch/arm64/boot/dts/qcom/sm8350-hdk.dts
>> +++ b/arch/arm64/boot/dts/qcom/sm8350-hdk.dts
>> @@ -222,6 +222,22 @@ &mpss {
>>   	firmware-name = "qcom/sm8350/modem.mbn";
>>   };
>>   
>> +&pcie0 {
>> +	status = "okay";
>> +};
>> +
>> +&pcie0_phy {
>> +	status = "okay";
>> +};
> 
> Looks like the required regulators are missing from the PHY nodes.

Ack, nice catch!

> 
> Johan

-- 
With best wishes
Dmitry

Re: [PATCH v2 7/8] arm64: dts: qcom: sm8350: add PCIe devices

[Dmitry Baryshkov]

On 10/11/2022 13:53, Johan Hovold wrote:
> On Thu, Nov 10, 2022 at 01:33:44PM +0300, Dmitry Baryshkov wrote:
>> Add PCIe0 and PCIe1 (and corresponding PHY) devices found on SM8350
>> platform. The PCIe0 is a 1-lane Gen3 host, PCIe1 is a 2-lane Gen3 host.
>>
>> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
>> ---
>>   arch/arm64/boot/dts/qcom/sm8350.dtsi | 246 ++++++++++++++++++++++++++-
>>   1 file changed, 244 insertions(+), 2 deletions(-)
> 
>> @@ -1761,6 +1957,52 @@ tlmm: pinctrl@f100000 {
>>   			gpio-ranges = <&tlmm 0 0 204>;
>>   			wakeup-parent = <&pdc>;
>>   
>> +			pcie0_default_state: pcie0-default-state {
>> +				perst-pins {
>> +					pins = "gpio94";
>> +					function = "gpio";
>> +					drive-strength = <2>;
>> +					bias-pull-down;
>> +				};
>> +
>> +				clkreq-pins {
>> +					pins = "gpio95";
>> +					function = "pcie0_clkreqn";
>> +					drive-strength = <2>;
>> +					bias-pull-up;
>> +				};
>> +
>> +				wake-pins {
>> +					pins = "gpio96";
>> +					function = "gpio";
>> +					drive-strength = <2>;
>> +					bias-pull-up;
>> +				};
>> +			};
> 
> The pinconfig should go in the board file.

Usually yes. However for the PCIe we usually put them into the main 
.dtsi. See sm8[124]50.dtsi.

-- 
With best wishes
Dmitry

Re: [PATCH v2 6/8] phy: qcom-qmp-pcie: add support for sm8350 platform

[Dmitry Baryshkov]

On 10/11/2022 13:33, Dmitry Baryshkov wrote:
> Add support for a single-lane and two-lane PCIe PHYs found on Qualcomm
> SM8350 platform.
> 
> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
> ---
>   drivers/phy/qualcomm/phy-qcom-qmp-pcie.c | 120 ++++++++++++++++++++++-
>   1 file changed, 119 insertions(+), 1 deletion(-)

Argh, this will not compile against the current phy/next. I'll have to 
send v3.

> 
> diff --git a/drivers/phy/qualcomm/phy-qcom-qmp-pcie.c b/drivers/phy/qualcomm/phy-qcom-qmp-pcie.c
> index 4a55b2439952..a1f5d31d161b 100644
> --- a/drivers/phy/qualcomm/phy-qcom-qmp-pcie.c
> +++ b/drivers/phy/qualcomm/phy-qcom-qmp-pcie.c

-- 
With best wishes
Dmitry

Re: [PATCH v2 7/8] arm64: dts: qcom: sm8350: add PCIe devices

[Johan Hovold]

On Thu, Nov 10, 2022 at 05:20:11PM +0300, Dmitry Baryshkov wrote:
> On 10/11/2022 13:53, Johan Hovold wrote:
> > On Thu, Nov 10, 2022 at 01:33:44PM +0300, Dmitry Baryshkov wrote:
> >> Add PCIe0 and PCIe1 (and corresponding PHY) devices found on SM8350
> >> platform. The PCIe0 is a 1-lane Gen3 host, PCIe1 is a 2-lane Gen3 host.
> >>
> >> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
> >> ---
> >>   arch/arm64/boot/dts/qcom/sm8350.dtsi | 246 ++++++++++++++++++++++++++-
> >>   1 file changed, 244 insertions(+), 2 deletions(-)
> > 
> >> @@ -1761,6 +1957,52 @@ tlmm: pinctrl@f100000 {
> >>   			gpio-ranges = <&tlmm 0 0 204>;
> >>   			wakeup-parent = <&pdc>;
> >>   
> >> +			pcie0_default_state: pcie0-default-state {
> >> +				perst-pins {
> >> +					pins = "gpio94";
> >> +					function = "gpio";
> >> +					drive-strength = <2>;
> >> +					bias-pull-down;
> >> +				};
> >> +
> >> +				clkreq-pins {
> >> +					pins = "gpio95";
> >> +					function = "pcie0_clkreqn";
> >> +					drive-strength = <2>;
> >> +					bias-pull-up;
> >> +				};
> >> +
> >> +				wake-pins {
> >> +					pins = "gpio96";
> >> +					function = "gpio";
> >> +					drive-strength = <2>;
> >> +					bias-pull-up;
> >> +				};
> >> +			};
> > 
> > The pinconfig should go in the board file.
> 
> Usually yes. However for the PCIe we usually put them into the main 
> .dtsi. See sm8[124]50.dtsi.

Yeah, I noticed that too and had this discussion with Bjorn for
sc8280xp some months ago. Even if you may save a few lines by providing
defaults in a dtsi, the pin configuration is board specific and belongs
in the dts.

Also note that 'perst' and 'wake' above could in principle be connected
to other GPIOs on different boards.

Johan

Re: [PATCH v2 7/8] arm64: dts: qcom: sm8350: add PCIe devices

[Dmitry Baryshkov]

On 16/11/2022 16:26, Johan Hovold wrote:
> On Thu, Nov 10, 2022 at 05:20:11PM +0300, Dmitry Baryshkov wrote:
>> On 10/11/2022 13:53, Johan Hovold wrote:
>>> On Thu, Nov 10, 2022 at 01:33:44PM +0300, Dmitry Baryshkov wrote:
>>>> Add PCIe0 and PCIe1 (and corresponding PHY) devices found on SM8350
>>>> platform. The PCIe0 is a 1-lane Gen3 host, PCIe1 is a 2-lane Gen3 host.
>>>>
>>>> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
>>>> ---
>>>>    arch/arm64/boot/dts/qcom/sm8350.dtsi | 246 ++++++++++++++++++++++++++-
>>>>    1 file changed, 244 insertions(+), 2 deletions(-)
>>>
>>>> @@ -1761,6 +1957,52 @@ tlmm: pinctrl@f100000 {
>>>>    			gpio-ranges = <&tlmm 0 0 204>;
>>>>    			wakeup-parent = <&pdc>;
>>>>    
>>>> +			pcie0_default_state: pcie0-default-state {
>>>> +				perst-pins {
>>>> +					pins = "gpio94";
>>>> +					function = "gpio";
>>>> +					drive-strength = <2>;
>>>> +					bias-pull-down;
>>>> +				};
>>>> +
>>>> +				clkreq-pins {
>>>> +					pins = "gpio95";
>>>> +					function = "pcie0_clkreqn";
>>>> +					drive-strength = <2>;
>>>> +					bias-pull-up;
>>>> +				};
>>>> +
>>>> +				wake-pins {
>>>> +					pins = "gpio96";
>>>> +					function = "gpio";
>>>> +					drive-strength = <2>;
>>>> +					bias-pull-up;
>>>> +				};
>>>> +			};
>>>
>>> The pinconfig should go in the board file.
>>
>> Usually yes. However for the PCIe we usually put them into the main
>> .dtsi. See sm8[124]50.dtsi.
> 
> Yeah, I noticed that too and had this discussion with Bjorn for
> sc8280xp some months ago. Even if you may save a few lines by providing
> defaults in a dtsi, the pin configuration is board specific and belongs
> in the dts.

I see that you've ended up with no pin configuration at all in 
sc8280xp.dtsi. I must admit, this is an interesting approach. However I 
fear that this might increase c&p amount. Let's see how it goes in the 
long term.

> 
> Also note that 'perst' and 'wake' above could in principle be connected
> to other GPIOs on different boards.

Yes. Do we see that in wild? No.

-- 
With best wishes
Dmitry