[PATCH 00/11] Clean up RPM bus clocks remnants

[PATCH 00/11] Clean up RPM bus clocks remnants

[Konrad Dybcio]

After the recent cleanups ([1], [2]) some in-tree abusers that directly
accessed the RPM bus clocks, effectively circumventing and working
against the efforts of the interconnect framework, were found.

Patches 1-5 drop deprecated references and the rest attempt to stop
direct bus clock abuses.

Depends on [2].

8996 and 8998 remoteproc changes were not tested, they never worked on
my Sony phones.

[1] https://lore.kernel.org/linux-arm-msm/20230526-topic-smd_icc-v7-0-09c78c175546@linaro.org/
[2] https://lore.kernel.org/linux-arm-msm/20230721-topic-icc_bindings-v1-0-93e2bc728fb7@linaro.org/

Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
---
Konrad Dybcio (11):
      arm64: dts: qcom: msm8916: Drop RPM bus clocks
      arm64: dts: qcom: msm8996: Drop RPM bus clocks
      arm64: dts: qcom: qcs404: Drop RPM bus clocks
      arm64: dts: qcom: sdm630: Drop RPM bus clocks
      arm64: dts: qcom: msm8939: Drop RPM bus clocks
      dt-bindings: remoteproc: qcom,adsp: Remove AGGRE2 clock
      dt-bindings: remoteproc: qcom,msm8996-mss-pil: Remove PNoC clock
      remoteproc: qcom: q6v5-mss: Remove PNoC clock from 8996 MSS
      arm64: dts: qcom: msm8998: Remove AGGRE2 clock from SLPI
      arm64: dts: qcom: msm8996: Remove AGGRE2 clock from SLPI
      arm64: dts: qcom: msm8996: Remove PNoC clock from MSS

 .../devicetree/bindings/remoteproc/qcom,adsp.yaml  |  2 -
 .../bindings/remoteproc/qcom,msm8996-mss-pil.yaml  |  2 -
 arch/arm64/boot/dts/qcom/msm8916.dtsi              |  9 -----
 arch/arm64/boot/dts/qcom/msm8939.dtsi              | 12 ------
 arch/arm64/boot/dts/qcom/msm8996.dtsi              | 43 +++++++---------------
 arch/arm64/boot/dts/qcom/msm8998.dtsi              |  5 +--
 arch/arm64/boot/dts/qcom/qcs404.dtsi               |  9 -----
 arch/arm64/boot/dts/qcom/sdm630.dtsi               | 29 ++-------------
 drivers/remoteproc/qcom_q6v5_mss.c                 |  1 -
 9 files changed, 20 insertions(+), 92 deletions(-)
---
base-commit: ae867bc97b713121b2a7f5fcac68378a0774739b
change-id: 20230721-topic-rpm_clk_cleanup-1b2f4a1acd01

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

[PATCH 01/11] arm64: dts: qcom: msm8916: Drop RPM bus clocks

[Konrad Dybcio]

These clocks are now handled from within the icc framework and are
no longer registered from within the CCF. Remove them.

Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
---
 arch/arm64/boot/dts/qcom/msm8916.dtsi | 9 ---------
 1 file changed, 9 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/msm8916.dtsi b/arch/arm64/boot/dts/qcom/msm8916.dtsi
index c4d673904698..ffdb620f6a70 100644
--- a/arch/arm64/boot/dts/qcom/msm8916.dtsi
+++ b/arch/arm64/boot/dts/qcom/msm8916.dtsi
@@ -519,9 +519,6 @@ bimc: interconnect@400000 {
 			compatible = "qcom,msm8916-bimc";
 			reg = <0x00400000 0x62000>;
 			#interconnect-cells = <1>;
-			clock-names = "bus", "bus_a";
-			clocks = <&rpmcc RPM_SMD_BIMC_CLK>,
-				 <&rpmcc RPM_SMD_BIMC_A_CLK>;
 		};
 
 		tsens: thermal-sensor@4a9000 {
@@ -554,18 +551,12 @@ pcnoc: interconnect@500000 {
 			compatible = "qcom,msm8916-pcnoc";
 			reg = <0x00500000 0x11000>;
 			#interconnect-cells = <1>;
-			clock-names = "bus", "bus_a";
-			clocks = <&rpmcc RPM_SMD_PCNOC_CLK>,
-				 <&rpmcc RPM_SMD_PCNOC_A_CLK>;
 		};
 
 		snoc: interconnect@580000 {
 			compatible = "qcom,msm8916-snoc";
 			reg = <0x00580000 0x14000>;
 			#interconnect-cells = <1>;
-			clock-names = "bus", "bus_a";
-			clocks = <&rpmcc RPM_SMD_SNOC_CLK>,
-				 <&rpmcc RPM_SMD_SNOC_A_CLK>;
 		};
 
 		stm: stm@802000 {

-- 
2.41.0

[PATCH 02/11] arm64: dts: qcom: msm8996: Drop RPM bus clocks

[Konrad Dybcio]

These clocks are now handled from within the icc framework and are
no longer registered from within the CCF. Remove them.

Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
---
 arch/arm64/boot/dts/qcom/msm8996.dtsi | 27 ++++-----------------------
 1 file changed, 4 insertions(+), 23 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/msm8996.dtsi b/arch/arm64/boot/dts/qcom/msm8996.dtsi
index 440557c8eca4..0e1cdb5335eb 100644
--- a/arch/arm64/boot/dts/qcom/msm8996.dtsi
+++ b/arch/arm64/boot/dts/qcom/msm8996.dtsi
@@ -798,9 +798,6 @@ bimc: interconnect@408000 {
 			compatible = "qcom,msm8996-bimc";
 			reg = <0x00408000 0x5a000>;
 			#interconnect-cells = <1>;
-			clock-names = "bus", "bus_a";
-			clocks = <&rpmcc RPM_SMD_BIMC_CLK>,
-				 <&rpmcc RPM_SMD_BIMC_A_CLK>;
 		};
 
 		tsens0: thermal-sensor@4a9000 {
@@ -851,18 +848,12 @@ cnoc: interconnect@500000 {
 			compatible = "qcom,msm8996-cnoc";
 			reg = <0x00500000 0x1000>;
 			#interconnect-cells = <1>;
-			clock-names = "bus", "bus_a";
-			clocks = <&rpmcc RPM_SMD_CNOC_CLK>,
-				 <&rpmcc RPM_SMD_CNOC_A_CLK>;
 		};
 
 		snoc: interconnect@524000 {
 			compatible = "qcom,msm8996-snoc";
 			reg = <0x00524000 0x1c000>;
 			#interconnect-cells = <1>;
-			clock-names = "bus", "bus_a";
-			clocks = <&rpmcc RPM_SMD_SNOC_CLK>,
-				 <&rpmcc RPM_SMD_SNOC_A_CLK>;
 		};
 
 		a0noc: interconnect@543000 {
@@ -882,19 +873,14 @@ a1noc: interconnect@562000 {
 			compatible = "qcom,msm8996-a1noc";
 			reg = <0x00562000 0x5000>;
 			#interconnect-cells = <1>;
-			clock-names = "bus", "bus_a";
-			clocks = <&rpmcc RPM_SMD_AGGR1_NOC_CLK>,
-				 <&rpmcc RPM_SMD_AGGR1_NOC_A_CLK>;
 		};
 
 		a2noc: interconnect@583000 {
 			compatible = "qcom,msm8996-a2noc";
 			reg = <0x00583000 0x7000>;
 			#interconnect-cells = <1>;
-			clock-names = "bus", "bus_a", "aggre2_ufs_axi", "ufs_axi";
-			clocks = <&rpmcc RPM_SMD_AGGR2_NOC_CLK>,
-				 <&rpmcc RPM_SMD_AGGR2_NOC_A_CLK>,
-				 <&gcc GCC_AGGRE2_UFS_AXI_CLK>,
+			clock-names = "aggre2_ufs_axi", "ufs_axi";
+			clocks = <&gcc GCC_AGGRE2_UFS_AXI_CLK>,
 				 <&gcc GCC_UFS_AXI_CLK>;
 		};
 
@@ -902,19 +888,14 @@ mnoc: interconnect@5a4000 {
 			compatible = "qcom,msm8996-mnoc";
 			reg = <0x005a4000 0x1c000>;
 			#interconnect-cells = <1>;
-			clock-names = "bus", "bus_a", "iface";
-			clocks = <&rpmcc RPM_SMD_MMAXI_CLK>,
-				 <&rpmcc RPM_SMD_MMAXI_A_CLK>,
-				 <&mmcc AHB_CLK_SRC>;
+			clock-names = "iface";
+			clocks = <&mmcc AHB_CLK_SRC>;
 		};
 
 		pnoc: interconnect@5c0000 {
 			compatible = "qcom,msm8996-pnoc";
 			reg = <0x005c0000 0x3000>;
 			#interconnect-cells = <1>;
-			clock-names = "bus", "bus_a";
-			clocks = <&rpmcc RPM_SMD_PCNOC_CLK>,
-				 <&rpmcc RPM_SMD_PCNOC_A_CLK>;
 		};
 
 		tcsr_mutex: hwlock@740000 {

-- 
2.41.0

[PATCH 03/11] arm64: dts: qcom: qcs404: Drop RPM bus clocks

[Konrad Dybcio]

These clocks are now handled from within the icc framework and are
no longer registered from within the CCF. Remove them.

Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
---
 arch/arm64/boot/dts/qcom/qcs404.dtsi | 9 ---------
 1 file changed, 9 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/qcs404.dtsi b/arch/arm64/boot/dts/qcom/qcs404.dtsi
index 2721f32dfb71..317a0df30b83 100644
--- a/arch/arm64/boot/dts/qcom/qcs404.dtsi
+++ b/arch/arm64/boot/dts/qcom/qcs404.dtsi
@@ -558,9 +558,6 @@ bimc: interconnect@400000 {
 			reg = <0x00400000 0x80000>;
 			compatible = "qcom,qcs404-bimc";
 			#interconnect-cells = <1>;
-			clock-names = "bus", "bus_a";
-			clocks = <&rpmcc RPM_SMD_BIMC_CLK>,
-				<&rpmcc RPM_SMD_BIMC_A_CLK>;
 		};
 
 		tsens: thermal-sensor@4a9000 {
@@ -601,18 +598,12 @@ pcnoc: interconnect@500000 {
 			reg = <0x00500000 0x15080>;
 			compatible = "qcom,qcs404-pcnoc";
 			#interconnect-cells = <1>;
-			clock-names = "bus", "bus_a";
-			clocks = <&rpmcc RPM_SMD_PNOC_CLK>,
-				<&rpmcc RPM_SMD_PNOC_A_CLK>;
 		};
 
 		snoc: interconnect@580000 {
 			reg = <0x00580000 0x23080>;
 			compatible = "qcom,qcs404-snoc";
 			#interconnect-cells = <1>;
-			clock-names = "bus", "bus_a";
-			clocks = <&rpmcc RPM_SMD_SNOC_CLK>,
-				<&rpmcc RPM_SMD_SNOC_A_CLK>;
 		};
 
 		remoteproc_cdsp: remoteproc@b00000 {

-- 
2.41.0

[PATCH 04/11] arm64: dts: qcom: sdm630: Drop RPM bus clocks

[Konrad Dybcio]

These clocks are now handled from within the icc framework and are
no longer registered from within the CCF. Remove them.

Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
---
 arch/arm64/boot/dts/qcom/sdm630.dtsi | 29 ++++-------------------------
 1 file changed, 4 insertions(+), 25 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/sdm630.dtsi b/arch/arm64/boot/dts/qcom/sdm630.dtsi
index 83afce56a7b0..5403e34c6cdd 100644
--- a/arch/arm64/boot/dts/qcom/sdm630.dtsi
+++ b/arch/arm64/boot/dts/qcom/sdm630.dtsi
@@ -605,9 +605,6 @@ bimc: interconnect@1008000 {
 			compatible = "qcom,sdm660-bimc";
 			reg = <0x01008000 0x78000>;
 			#interconnect-cells = <1>;
-			clock-names = "bus", "bus_a";
-			clocks = <&rpmcc RPM_SMD_BIMC_CLK>,
-				 <&rpmcc RPM_SMD_BIMC_A_CLK>;
 		};
 
 		restart@10ac000 {
@@ -619,18 +616,12 @@ cnoc: interconnect@1500000 {
 			compatible = "qcom,sdm660-cnoc";
 			reg = <0x01500000 0x10000>;
 			#interconnect-cells = <1>;
-			clock-names = "bus", "bus_a";
-			clocks = <&rpmcc RPM_SMD_CNOC_CLK>,
-				 <&rpmcc RPM_SMD_CNOC_A_CLK>;
 		};
 
 		snoc: interconnect@1626000 {
 			compatible = "qcom,sdm660-snoc";
 			reg = <0x01626000 0x7090>;
 			#interconnect-cells = <1>;
-			clock-names = "bus", "bus_a";
-			clocks = <&rpmcc RPM_SMD_SNOC_CLK>,
-				 <&rpmcc RPM_SMD_SNOC_A_CLK>;
 		};
 
 		anoc2_smmu: iommu@16c0000 {
@@ -685,16 +676,12 @@ a2noc: interconnect@1704000 {
 			compatible = "qcom,sdm660-a2noc";
 			reg = <0x01704000 0xc100>;
 			#interconnect-cells = <1>;
-			clock-names = "bus",
-				      "bus_a",
-				      "ipa",
+			clock-names = "ipa",
 				      "ufs_axi",
 				      "aggre2_ufs_axi",
 				      "aggre2_usb3_axi",
 				      "cfg_noc_usb2_axi";
-			clocks = <&rpmcc RPM_SMD_AGGR2_NOC_CLK>,
-				 <&rpmcc RPM_SMD_AGGR2_NOC_A_CLK>,
-				 <&rpmcc RPM_SMD_IPA_CLK>,
+			clocks = <&rpmcc RPM_SMD_IPA_CLK>,
 				 <&gcc GCC_UFS_AXI_CLK>,
 				 <&gcc GCC_AGGRE2_UFS_AXI_CLK>,
 				 <&gcc GCC_AGGRE2_USB3_AXI_CLK>,
@@ -705,10 +692,8 @@ mnoc: interconnect@1745000 {
 			compatible = "qcom,sdm660-mnoc";
 			reg = <0x01745000 0xa010>;
 			#interconnect-cells = <1>;
-			clock-names = "bus", "bus_a", "iface";
-			clocks = <&rpmcc RPM_SMD_MMSSNOC_AXI_CLK>,
-				 <&rpmcc RPM_SMD_MMSSNOC_AXI_CLK_A>,
-				 <&mmcc AHB_CLK_SRC>;
+			clock-names = "iface";
+			clocks = <&mmcc AHB_CLK_SRC>;
 		};
 
 		tsens: thermal-sensor@10ae000 {
@@ -2264,12 +2249,6 @@ gnoc: interconnect@17900000 {
 			compatible = "qcom,sdm660-gnoc";
 			reg = <0x17900000 0xe000>;
 			#interconnect-cells = <1>;
-			/*
-			 * This one apparently features no clocks,
-			 * so let's not mess with the driver needlessly
-			 */
-			clock-names = "bus", "bus_a";
-			clocks = <&xo_board>, <&xo_board>;
 		};
 
 		apcs_glb: mailbox@17911000 {

-- 
2.41.0

[PATCH 05/11] arm64: dts: qcom: msm8939: Drop RPM bus clocks

[Konrad Dybcio]

These clocks are now handled from within the icc framework and are
no longer registered from within the CCF. Remove them.

Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
---
 arch/arm64/boot/dts/qcom/msm8939.dtsi | 12 ------------
 1 file changed, 12 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/msm8939.dtsi b/arch/arm64/boot/dts/qcom/msm8939.dtsi
index af6d644a5d38..a1fda6db0854 100644
--- a/arch/arm64/boot/dts/qcom/msm8939.dtsi
+++ b/arch/arm64/boot/dts/qcom/msm8939.dtsi
@@ -581,9 +581,6 @@ rpm_msg_ram: sram@60000 {
 		bimc: interconnect@400000 {
 			compatible = "qcom,msm8939-bimc";
 			reg = <0x00400000 0x62000>;
-			clock-names = "bus", "bus_a";
-			clocks = <&rpmcc RPM_SMD_BIMC_CLK>,
-				 <&rpmcc RPM_SMD_BIMC_A_CLK>;
 			#interconnect-cells = <1>;
 		};
 
@@ -627,25 +624,16 @@ restart@4ab000 {
 		pcnoc: interconnect@500000 {
 			compatible = "qcom,msm8939-pcnoc";
 			reg = <0x00500000 0x11000>;
-			clock-names = "bus", "bus_a";
-			clocks = <&rpmcc RPM_SMD_PCNOC_CLK>,
-				 <&rpmcc RPM_SMD_PCNOC_A_CLK>;
 			#interconnect-cells = <1>;
 		};
 
 		snoc: interconnect@580000 {
 			compatible = "qcom,msm8939-snoc";
 			reg = <0x00580000 0x14080>;
-			clock-names = "bus", "bus_a";
-			clocks = <&rpmcc RPM_SMD_SNOC_CLK>,
-				 <&rpmcc RPM_SMD_SNOC_A_CLK>;
 			#interconnect-cells = <1>;
 
 			snoc_mm: interconnect-snoc {
 				compatible = "qcom,msm8939-snoc-mm";
-				clock-names = "bus", "bus_a";
-				clocks = <&rpmcc RPM_SMD_SYSMMNOC_CLK>,
-					 <&rpmcc RPM_SMD_SYSMMNOC_A_CLK>;
 				#interconnect-cells = <1>;
 			};
 		};

-- 
2.41.0

[PATCH 06/11] dt-bindings: remoteproc: qcom,adsp: Remove AGGRE2 clock

[Konrad Dybcio]

The AGGRE2 clock is a clock for the entire AGGRE2 bus, managed from
within the interconnect driver. Attaching it to SLPI was a total hack.
Get rid of it.

Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
---
 Documentation/devicetree/bindings/remoteproc/qcom,adsp.yaml | 2 --
 1 file changed, 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/remoteproc/qcom,adsp.yaml b/Documentation/devicetree/bindings/remoteproc/qcom,adsp.yaml
index a2b0079de039..af78f76734db 100644
--- a/Documentation/devicetree/bindings/remoteproc/qcom,adsp.yaml
+++ b/Documentation/devicetree/bindings/remoteproc/qcom,adsp.yaml
@@ -91,11 +91,9 @@ allOf:
         clocks:
           items:
             - description: XO clock
-            - description: AGGRE2 clock
         clock-names:
           items:
             - const: xo
-            - const: aggre2
 
   - if:
       properties:

-- 
2.41.0

[PATCH 07/11] dt-bindings: remoteproc: qcom,msm8996-mss-pil: Remove PNoC clock

[Konrad Dybcio]

The PNoC clock is a clock for the entire PNoC bus, managed from
within the interconnect driver. Attaching it to MSS was a total hack.
Get rid of it.

Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
---
 Documentation/devicetree/bindings/remoteproc/qcom,msm8996-mss-pil.yaml | 2 --
 1 file changed, 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/remoteproc/qcom,msm8996-mss-pil.yaml b/Documentation/devicetree/bindings/remoteproc/qcom,msm8996-mss-pil.yaml
index 0643faae2c39..971734085d51 100644
--- a/Documentation/devicetree/bindings/remoteproc/qcom,msm8996-mss-pil.yaml
+++ b/Documentation/devicetree/bindings/remoteproc/qcom,msm8996-mss-pil.yaml
@@ -220,7 +220,6 @@ allOf:
             - description: GCC MSS GPLL0 clock
             - description: GCC MSS SNOC_AXI clock
             - description: GCC MSS MNOC_AXI clock
-            - description: RPM PNOC clock
             - description: RPM QDSS clock
         clock-names:
           items:
@@ -231,7 +230,6 @@ allOf:
             - const: gpll0_mss
             - const: snoc_axi
             - const: mnoc_axi
-            - const: pnoc
             - const: qdss
         glink-edge: false
       required:

-- 
2.41.0

[PATCH 08/11] remoteproc: qcom: q6v5-mss: Remove PNoC clock from 8996 MSS

[Konrad Dybcio]

The PNoC clock is a clock for the entire PNoC bus, managed from
within the interconnect driver. Attaching it to MSS was a total hack.
Get rid of it.

Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
---
 drivers/remoteproc/qcom_q6v5_mss.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/remoteproc/qcom_q6v5_mss.c b/drivers/remoteproc/qcom_q6v5_mss.c
index 22fe7b5f5236..394b2c1cb5e2 100644
--- a/drivers/remoteproc/qcom_q6v5_mss.c
+++ b/drivers/remoteproc/qcom_q6v5_mss.c
@@ -2322,7 +2322,6 @@ static const struct rproc_hexagon_res msm8996_mss = {
 	},
 	.proxy_clk_names = (char*[]){
 			"xo",
-			"pnoc",
 			"qdss",
 			NULL
 	},

-- 
2.41.0

[PATCH 09/11] arm64: dts: qcom: msm8998: Remove AGGRE2 clock from SLPI

[Konrad Dybcio]

The AGGRE2 clock is a clock for the entire AGGRE2 bus, managed from
within the interconnect driver. Attaching it to SLPI was a total hack.
Get rid of it.

Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
---
 arch/arm64/boot/dts/qcom/msm8998.dtsi | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/msm8998.dtsi b/arch/arm64/boot/dts/qcom/msm8998.dtsi
index 360fe3edcc08..547c3f9654a6 100644
--- a/arch/arm64/boot/dts/qcom/msm8998.dtsi
+++ b/arch/arm64/boot/dts/qcom/msm8998.dtsi
@@ -1599,9 +1599,8 @@ remoteproc_slpi: remoteproc@5800000 {
 
 			px-supply = <&vreg_lvs2a_1p8>;
 
-			clocks = <&rpmcc RPM_SMD_XO_CLK_SRC>,
-				 <&rpmcc RPM_SMD_AGGR2_NOC_CLK>;
-			clock-names = "xo", "aggre2";
+			clocks = <&rpmcc RPM_SMD_XO_CLK_SRC>;
+			clock-names = "xo";
 
 			memory-region = <&slpi_mem>;
 

-- 
2.41.0

[PATCH 10/11] arm64: dts: qcom: msm8996: Remove AGGRE2 clock from SLPI

[Konrad Dybcio]

The AGGRE2 clock is a clock for the entire AGGRE2 bus, managed from
within the interconnect driver. Attaching it to SLPI was a total hack.
Get rid of it.

Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
---
 arch/arm64/boot/dts/qcom/msm8996.dtsi | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/msm8996.dtsi b/arch/arm64/boot/dts/qcom/msm8996.dtsi
index 0e1cdb5335eb..ea383cf178e5 100644
--- a/arch/arm64/boot/dts/qcom/msm8996.dtsi
+++ b/arch/arm64/boot/dts/qcom/msm8996.dtsi
@@ -2433,9 +2433,8 @@ slpi_pil: remoteproc@1c00000 {
 					  "handover",
 					  "stop-ack";
 
-			clocks = <&xo_board>,
-				 <&rpmcc RPM_SMD_AGGR2_NOC_CLK>;
-			clock-names = "xo", "aggre2";
+			clocks = <&xo_board>;
+			clock-names = "xo";
 
 			memory-region = <&slpi_mem>;
 

-- 
2.41.0

[PATCH 11/11] arm64: dts: qcom: msm8996: Remove PNoC clock from MSS

[Konrad Dybcio]

The PNoC clock is a clock for the entire PNoC bus, managed from
within the interconnect driver. Attaching it to MSS was a total hack.
Get rid of it and take the liberty to make the clock-names entries
more readable.

Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
---
 arch/arm64/boot/dts/qcom/msm8996.dtsi | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/msm8996.dtsi b/arch/arm64/boot/dts/qcom/msm8996.dtsi
index ea383cf178e5..3526a88bfa5f 100644
--- a/arch/arm64/boot/dts/qcom/msm8996.dtsi
+++ b/arch/arm64/boot/dts/qcom/msm8996.dtsi
@@ -2479,10 +2479,15 @@ mss_pil: remoteproc@2080000 {
 				 <&gcc GCC_MSS_GPLL0_DIV_CLK>,
 				 <&gcc GCC_MSS_SNOC_AXI_CLK>,
 				 <&gcc GCC_MSS_MNOC_BIMC_AXI_CLK>,
-				 <&rpmcc RPM_SMD_PCNOC_CLK>,
 				 <&rpmcc RPM_SMD_QDSS_CLK>;
-			clock-names = "iface", "bus", "mem", "xo", "gpll0_mss",
-				      "snoc_axi", "mnoc_axi", "pnoc", "qdss";
+			clock-names = "iface",
+				      "bus",
+				      "mem",
+				      "xo",
+				      "gpll0_mss",
+				      "snoc_axi",
+				      "mnoc_axi",
+				      "qdss";
 
 			resets = <&gcc GCC_MSS_RESTART>;
 			reset-names = "mss_restart";

-- 
2.41.0

Re: [PATCH 09/11] arm64: dts: qcom: msm8998: Remove AGGRE2 clock from SLPI

[Jeffrey Hugo]

On 7/21/2023 9:36 AM, Konrad Dybcio wrote:
> The AGGRE2 clock is a clock for the entire AGGRE2 bus, managed from
> within the interconnect driver. Attaching it to SLPI was a total hack.
> Get rid of it.

Nit - why do we care what driver manages the clock?  DT describes 
hardware...

The entire SLPI block hangs off the AGGRE2 bus, so that bus needs to be 
on for the SLPI.  I agree that AGGRE2 is really an interconnect device 
and SLPI should be a consumer of that, but we don't have 8998 
interconnects defined yet.  Seems like this hack is still needed.

> 
> Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
> ---
>   arch/arm64/boot/dts/qcom/msm8998.dtsi | 5 ++---
>   1 file changed, 2 insertions(+), 3 deletions(-)
> 
> diff --git a/arch/arm64/boot/dts/qcom/msm8998.dtsi b/arch/arm64/boot/dts/qcom/msm8998.dtsi
> index 360fe3edcc08..547c3f9654a6 100644
> --- a/arch/arm64/boot/dts/qcom/msm8998.dtsi
> +++ b/arch/arm64/boot/dts/qcom/msm8998.dtsi
> @@ -1599,9 +1599,8 @@ remoteproc_slpi: remoteproc@5800000 {
>   
>   			px-supply = <&vreg_lvs2a_1p8>;
>   
> -			clocks = <&rpmcc RPM_SMD_XO_CLK_SRC>,
> -				 <&rpmcc RPM_SMD_AGGR2_NOC_CLK>;
> -			clock-names = "xo", "aggre2";
> +			clocks = <&rpmcc RPM_SMD_XO_CLK_SRC>;
> +			clock-names = "xo";
>   
>   			memory-region = <&slpi_mem>;
>   
> 

Re: [PATCH 06/11] dt-bindings: remoteproc: qcom,adsp: Remove AGGRE2 clock

[Krzysztof Kozlowski]

On 21/07/2023 17:36, Konrad Dybcio wrote:
> The AGGRE2 clock is a clock for the entire AGGRE2 bus, managed from
> within the interconnect driver. Attaching it to SLPI was a total hack.
> Get rid of it.
> 
> Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
> ---
>  Documentation/devicetree/bindings/remoteproc/qcom,adsp.yaml | 2 --
>  1 file changed, 2 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/remoteproc/qcom,adsp.yaml b/Documentation/devicetree/bindings/remoteproc/qcom,adsp.yaml
> index a2b0079de039..af78f76734db 100644
> --- a/Documentation/devicetree/bindings/remoteproc/qcom,adsp.yaml
> +++ b/Documentation/devicetree/bindings/remoteproc/qcom,adsp.yaml
> @@ -91,11 +91,9 @@ allOf:
>          clocks:
>            items:
>              - description: XO clock
> -            - description: AGGRE2 clock

I think this entry can be squashed now with previous if:then:.

Best regards,
Krzysztof

Re: [PATCH 07/11] dt-bindings: remoteproc: qcom,msm8996-mss-pil: Remove PNoC clock

[Krzysztof Kozlowski]

On 21/07/2023 17:36, Konrad Dybcio wrote:
> The PNoC clock is a clock for the entire PNoC bus, managed from
> within the interconnect driver. Attaching it to MSS was a total hack.
> Get rid of it.
> 
> Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>


Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

Best regards,
Krzysztof

Re: [PATCH 04/11] arm64: dts: qcom: sdm630: Drop RPM bus clocks

[Krzysztof Kozlowski]

On 21/07/2023 17:36, Konrad Dybcio wrote:
> These clocks are now handled from within the icc framework and are
> no longer registered from within the CCF. Remove them.
> 
> Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
> ---
>  arch/arm64/boot/dts/qcom/sdm630.dtsi | 29 ++++-------------------------
>  1 file changed, 4 insertions(+), 25 deletions(-)
> 

Are you sure you removed all of the instances? I think usb still has RPM
bus clocks.

Best regards,
Krzysztof

Re: [PATCH 09/11] arm64: dts: qcom: msm8998: Remove AGGRE2 clock from SLPI

[Konrad Dybcio]

On 21.07.2023 17:50, Jeffrey Hugo wrote:
> On 7/21/2023 9:36 AM, Konrad Dybcio wrote:
>> The AGGRE2 clock is a clock for the entire AGGRE2 bus, managed from
>> within the interconnect driver. Attaching it to SLPI was a total hack.
>> Get rid of it.
> 
> Nit - why do we care what driver manages the clock?  DT describes hardware...
> 
> The entire SLPI block hangs off the AGGRE2 bus, so that bus needs to be on for the SLPI.  I agree that AGGRE2 is really an interconnect device and SLPI should be a consumer of that, but we don't have 8998 interconnects defined yet.  Seems like this hack is still needed.
I'll try to get somebody to check on a device with working SLPI, but
the DT-side explanation here is: this is not a clock. It's previously
been misrepresented as such, but it lies within the "interconnect"
class.

Konrad
> 
>>
>> Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
>> ---
>>   arch/arm64/boot/dts/qcom/msm8998.dtsi | 5 ++---
>>   1 file changed, 2 insertions(+), 3 deletions(-)
>>
>> diff --git a/arch/arm64/boot/dts/qcom/msm8998.dtsi b/arch/arm64/boot/dts/qcom/msm8998.dtsi
>> index 360fe3edcc08..547c3f9654a6 100644
>> --- a/arch/arm64/boot/dts/qcom/msm8998.dtsi
>> +++ b/arch/arm64/boot/dts/qcom/msm8998.dtsi
>> @@ -1599,9 +1599,8 @@ remoteproc_slpi: remoteproc@5800000 {
>>                 px-supply = <&vreg_lvs2a_1p8>;
>>   -            clocks = <&rpmcc RPM_SMD_XO_CLK_SRC>,
>> -                 <&rpmcc RPM_SMD_AGGR2_NOC_CLK>;
>> -            clock-names = "xo", "aggre2";
>> +            clocks = <&rpmcc RPM_SMD_XO_CLK_SRC>;
>> +            clock-names = "xo";
>>                 memory-region = <&slpi_mem>;
>>  
> 

Re: [PATCH 09/11] arm64: dts: qcom: msm8998: Remove AGGRE2 clock from SLPI

[Konrad Dybcio]

On 21.07.2023 17:50, Jeffrey Hugo wrote:
> On 7/21/2023 9:36 AM, Konrad Dybcio wrote:
>> The AGGRE2 clock is a clock for the entire AGGRE2 bus, managed from
>> within the interconnect driver. Attaching it to SLPI was a total hack.
>> Get rid of it.
> 
> Nit - why do we care what driver manages the clock?  DT describes hardware...
> 
> The entire SLPI block hangs off the AGGRE2 bus, so that bus needs to be on for the SLPI.  I agree that AGGRE2 is really an interconnect device and SLPI should be a consumer of that, but we don't have 8998 interconnects defined yet.  Seems like this hack is still needed.
As we concluded in private, this has no effect as the clk-smd-rpm driver
leaves that clock dangling at FMAX anyway

Konrad

Re: [PATCH 04/11] arm64: dts: qcom: sdm630: Drop RPM bus clocks

[Konrad Dybcio]

On 23.07.2023 16:08, Krzysztof Kozlowski wrote:
> On 21/07/2023 17:36, Konrad Dybcio wrote:
>> These clocks are now handled from within the icc framework and are
>> no longer registered from within the CCF. Remove them.
>>
>> Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
>> ---
>>  arch/arm64/boot/dts/qcom/sdm630.dtsi | 29 ++++-------------------------
>>  1 file changed, 4 insertions(+), 25 deletions(-)
>>
> 
> Are you sure you removed all of the instances? I think usb still has RPM
> bus clocks.
Yes, but Alexey submitted a patch [1] to remove that before I sent this

Guess I should have mentioned it..

Konrad

[1] https://lore.kernel.org/linux-arm-msm/20230719073520.2644966-1-alexeymin@postmarketos.org/