From 5b33bce0bd31ca3ebc5e3a75b3053141540ec644 Mon Sep 17 00:00:00 2001 From: Kaustabh Chakraborty Date: Sun, 28 Sep 2025 22:13:56 +0530 Subject: [PATCH 01/18] arm64: dts: exynos7870-a2corelte: add bus-width to mmc0 node Add the bus-width property in &mmc0 node. The Exynos DWMMC driver assumes bus width to be 8 if not present in devicetree, so at least with respect to the Linux kernel, this doesn't introduce any functional changes. But other drivers referring to it may not. Either way, without the bus-width property the hardware description remains incomplete. Signed-off-by: Kaustabh Chakraborty Signed-off-by: Krzysztof Kozlowski --- arch/arm64/boot/dts/exynos/exynos7870-a2corelte.dts | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/boot/dts/exynos/exynos7870-a2corelte.dts b/arch/arm64/boot/dts/exynos/exynos7870-a2corelte.dts index eb7b48593187..07467158ee6a 100644 --- a/arch/arm64/boot/dts/exynos/exynos7870-a2corelte.dts +++ b/arch/arm64/boot/dts/exynos/exynos7870-a2corelte.dts @@ -447,6 +447,7 @@ vmmc-supply = <&vdd_ldo26>; vqmmc-supply = <&vdd_ldo27>; + bus-width = <8>; fifo-depth = <64>; samsung,dw-mshc-ciu-div = <3>; samsung,dw-mshc-sdr-timing = <0 4>; From 9e3e37939362ba110c341cae09acaf000c0edb34 Mon Sep 17 00:00:00 2001 From: Kaustabh Chakraborty Date: Sun, 28 Sep 2025 22:13:57 +0530 Subject: [PATCH 02/18] arm64: dts: exynos7870-j6lte: add bus-width to mmc0 node Add the bus-width property in &mmc0 node. The Exynos DWMMC driver assumes bus width to be 8 if not present in devicetree, so at least with respect to the Linux kernel, this doesn't introduce any functional changes. But other drivers referring to it may not. Either way, without the bus-width property the hardware description remains incomplete. Signed-off-by: Kaustabh Chakraborty Signed-off-by: Krzysztof Kozlowski --- arch/arm64/boot/dts/exynos/exynos7870-j6lte.dts | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/boot/dts/exynos/exynos7870-j6lte.dts b/arch/arm64/boot/dts/exynos/exynos7870-j6lte.dts index b8ce433b93b1..eb4701dbafc5 100644 --- a/arch/arm64/boot/dts/exynos/exynos7870-j6lte.dts +++ b/arch/arm64/boot/dts/exynos/exynos7870-j6lte.dts @@ -430,6 +430,7 @@ vmmc-supply = <&vdd_ldo26>; vqmmc-supply = <&vdd_ldo27>; + bus-width = <8>; fifo-depth = <64>; samsung,dw-mshc-ciu-div = <3>; samsung,dw-mshc-sdr-timing = <0 4>; From 2bb07378bae9504f5122bfbe4a6082bcdcc8bdf6 Mon Sep 17 00:00:00 2001 From: Kaustabh Chakraborty Date: Sun, 28 Sep 2025 22:13:58 +0530 Subject: [PATCH 03/18] arm64: dts: exynos7870-on7xelte: add bus-width to mmc0 node Add the bus-width property in &mmc0 node. The Exynos DWMMC driver assumes bus width to be 8 if not present in devicetree, so at least with respect to the Linux kernel, this doesn't introduce any functional changes. But other drivers referring to it may not. Either way, without the bus-width property the hardware description remains incomplete. Signed-off-by: Kaustabh Chakraborty Signed-off-by: Krzysztof Kozlowski --- arch/arm64/boot/dts/exynos/exynos7870-on7xelte.dts | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/boot/dts/exynos/exynos7870-on7xelte.dts b/arch/arm64/boot/dts/exynos/exynos7870-on7xelte.dts index b1d9eff5a827..2a3d91d390ec 100644 --- a/arch/arm64/boot/dts/exynos/exynos7870-on7xelte.dts +++ b/arch/arm64/boot/dts/exynos/exynos7870-on7xelte.dts @@ -463,6 +463,7 @@ vmmc-supply = <&vdd_ldo26>; vqmmc-supply = <&vdd_ldo27>; + bus-width = <8>; fifo-depth = <64>; samsung,dw-mshc-ciu-div = <3>; samsung,dw-mshc-sdr-timing = <0 4>; From 7b0ccabb873de4b4dec3214b2a0ee3c32c326101 Mon Sep 17 00:00:00 2001 From: Raghav Sharma Date: Mon, 15 Sep 2025 15:24:01 +0530 Subject: [PATCH 04/18] arm64: dts: exynosautov920: add CMU_M2M clock DT nodes Add required dt node for CMU_M2M block, which provides clocks for M2M IP Signed-off-by: Raghav Sharma Reviewed-by: Alim Akhtar Signed-off-by: Krzysztof Kozlowski --- arch/arm64/boot/dts/exynos/exynosautov920.dtsi | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/arch/arm64/boot/dts/exynos/exynosautov920.dtsi b/arch/arm64/boot/dts/exynos/exynosautov920.dtsi index 0fdf2062930a..d19d71faa6f8 100644 --- a/arch/arm64/boot/dts/exynos/exynosautov920.dtsi +++ b/arch/arm64/boot/dts/exynos/exynosautov920.dtsi @@ -1454,6 +1454,19 @@ reg = <0x1a460000 0x10000>; }; + cmu_m2m: clock-controller@1a800000 { + compatible = "samsung,exynosautov920-cmu-m2m"; + reg = <0x1a800000 0x8000>; + #clock-cells = <1>; + + clocks = <&xtcxo>, + <&cmu_top DOUT_CLKCMU_M2M_NOC>, + <&cmu_top DOUT_CLKCMU_M2M_JPEG>; + clock-names = "oscclk", + "noc", + "jpeg"; + }; + cmu_cpucl0: clock-controller@1ec00000 { compatible = "samsung,exynosautov920-cmu-cpucl0"; reg = <0x1ec00000 0x8000>; From e3be50e829aa1aee713bf0c6907acf13d48be310 Mon Sep 17 00:00:00 2001 From: Raghav Sharma Date: Thu, 25 Sep 2025 18:34:57 +0530 Subject: [PATCH 05/18] arm64: dts: exynosautov920: add CMU_MFC clock DT nodes Add required dt node for CMU_MFC block, which provides clocks for MFC IP Signed-off-by: Raghav Sharma Signed-off-by: Krzysztof Kozlowski --- arch/arm64/boot/dts/exynos/exynosautov920.dtsi | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/arch/arm64/boot/dts/exynos/exynosautov920.dtsi b/arch/arm64/boot/dts/exynos/exynosautov920.dtsi index d19d71faa6f8..6ee74d260776 100644 --- a/arch/arm64/boot/dts/exynos/exynosautov920.dtsi +++ b/arch/arm64/boot/dts/exynos/exynosautov920.dtsi @@ -1449,6 +1449,19 @@ status = "disabled"; }; + cmu_mfc: clock-controller@19c00000 { + compatible = "samsung,exynosautov920-cmu-mfc"; + reg = <0x19c00000 0x8000>; + #clock-cells = <1>; + + clocks = <&xtcxo>, + <&cmu_top DOUT_CLKCMU_MFC_MFC>, + <&cmu_top DOUT_CLKCMU_MFC_WFD>; + clock-names = "oscclk", + "mfc", + "wfd"; + }; + pinctrl_aud: pinctrl@1a460000 { compatible = "samsung,exynosautov920-pinctrl"; reg = <0x1a460000 0x10000>; From 1e6daba7a3c05af0f8b02cb59e71ce18fb913aa6 Mon Sep 17 00:00:00 2001 From: Denzeel Oliva Date: Wed, 17 Sep 2025 21:04:22 +0000 Subject: [PATCH 06/18] arm64: dts: exynos990: Add sysreg nodes for PERIC0 and PERIC1 Add syscon nodes for PERIC0 and PERIC1 blocks. These are required for configuring the USI, SPI and I2C controllers. Signed-off-by: Denzeel Oliva Signed-off-by: Krzysztof Kozlowski --- arch/arm64/boot/dts/exynos/exynos990.dtsi | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/arch/arm64/boot/dts/exynos/exynos990.dtsi b/arch/arm64/boot/dts/exynos/exynos990.dtsi index 7179109c49d0..f8e2a31b4b75 100644 --- a/arch/arm64/boot/dts/exynos/exynos990.dtsi +++ b/arch/arm64/boot/dts/exynos/exynos990.dtsi @@ -260,6 +260,12 @@ clock-names = "oscclk", "bus", "ip"; }; + sysreg_peric0: syscon@10420000 { + compatible = "samsung,exynos990-peric0-sysreg", "syscon"; + reg = <0x10420000 0x10000>; + clocks = <&cmu_peric0 CLK_GOUT_PERIC0_SYSREG_PCLK>; + }; + pinctrl_peric0: pinctrl@10430000 { compatible = "samsung,exynos990-pinctrl"; reg = <0x10430000 0x1000>; @@ -277,6 +283,12 @@ clock-names = "oscclk", "bus", "ip"; }; + sysreg_peric1: syscon@10720000 { + compatible = "samsung,exynos990-peric1-sysreg", "syscon"; + reg = <0x10720000 0x10000>; + clocks = <&cmu_peric1 CLK_GOUT_PERIC1_SYSREG_PCLK>; + }; + pinctrl_peric1: pinctrl@10730000 { compatible = "samsung,exynos990-pinctrl"; reg = <0x10730000 0x1000>; From f409bd20f0a94ca4eece7eb919b800e013abc043 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Andr=C3=A9=20Draszik?= Date: Fri, 10 Oct 2025 16:56:26 +0100 Subject: [PATCH 07/18] arm64: dts: exynos: gs101-pixel-common: add node for s2mpg10 / clock MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit On Pixel 6 (and Pro), a Samsung S2MPG10 is used as main PMIC, which contains the following functional blocks: * common / speedy interface * regulators * 3 clock outputs * RTC * power meters This change adds a node for the clock outputs which are used as inputs as follows: * RTC clock for AP * GNSS receiver, WLAN, Bluetooth * vibrator, modem The names have been chosen to match the schematic. Signed-off-by: André Draszik Signed-off-by: Krzysztof Kozlowski --- arch/arm64/boot/dts/exynos/google/gs101-pixel-common.dtsi | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/arch/arm64/boot/dts/exynos/google/gs101-pixel-common.dtsi b/arch/arm64/boot/dts/exynos/google/gs101-pixel-common.dtsi index 84ff3e047d3b..93892adaa679 100644 --- a/arch/arm64/boot/dts/exynos/google/gs101-pixel-common.dtsi +++ b/arch/arm64/boot/dts/exynos/google/gs101-pixel-common.dtsi @@ -109,6 +109,13 @@ system-power-controller; wakeup-source; + clocks { + compatible = "samsung,s2mpg10-clk"; + #clock-cells = <1>; + clock-output-names = "rtc32k_ap", "peri32k1", + "peri32k2"; + }; + regulators { }; }; From 83c4e3c39b2b55afe56ed0d14b93b5f219350c81 Mon Sep 17 00:00:00 2001 From: Tudor Ambarus Date: Fri, 10 Oct 2025 12:46:31 +0000 Subject: [PATCH 08/18] dt-bindings: firmware: google,gs101-acpm-ipc: add ACPM clocks The firmware exposes clocks that can be controlled via the Alive Clock and Power Manager (ACPM) interface. Make the ACPM node a clock provider by adding the mandatory "#clock-cells" property, which allows devices to reference its clock outputs. Signed-off-by: Tudor Ambarus Reviewed-by: Rob Herring (Arm) Reviewed-by: Peter Griffin Tested-by: Peter Griffin # on gs101-oriole Link: https://patch.msgid.link/20251010-acpm-clk-v6-1-321ee8826fd4@linaro.org Signed-off-by: Krzysztof Kozlowski --- .../firmware/google,gs101-acpm-ipc.yaml | 11 ++++++++ include/dt-bindings/clock/google,gs101-acpm.h | 26 +++++++++++++++++++ 2 files changed, 37 insertions(+) create mode 100644 include/dt-bindings/clock/google,gs101-acpm.h diff --git a/Documentation/devicetree/bindings/firmware/google,gs101-acpm-ipc.yaml b/Documentation/devicetree/bindings/firmware/google,gs101-acpm-ipc.yaml index 9785aac3b5f3..d3bca6088d12 100644 --- a/Documentation/devicetree/bindings/firmware/google,gs101-acpm-ipc.yaml +++ b/Documentation/devicetree/bindings/firmware/google,gs101-acpm-ipc.yaml @@ -24,6 +24,15 @@ properties: compatible: const: google,gs101-acpm-ipc + "#clock-cells": + const: 1 + description: + Clocks that are variable and index based. These clocks don't provide + an entire range of values between the limits but only discrete points + within the range. The firmware also manages the voltage scaling + appropriately with the clock scaling. The argument is the ID of the + clock contained by the firmware messages. + mboxes: maxItems: 1 @@ -45,6 +54,7 @@ properties: required: - compatible + - "#clock-cells" - mboxes - shmem @@ -56,6 +66,7 @@ examples: power-management { compatible = "google,gs101-acpm-ipc"; + #clock-cells = <1>; mboxes = <&ap2apm_mailbox>; shmem = <&apm_sram>; diff --git a/include/dt-bindings/clock/google,gs101-acpm.h b/include/dt-bindings/clock/google,gs101-acpm.h new file mode 100644 index 000000000000..e2ba89e09fa6 --- /dev/null +++ b/include/dt-bindings/clock/google,gs101-acpm.h @@ -0,0 +1,26 @@ +/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */ +/* + * Copyright 2025 Linaro Ltd. + * + * Device Tree binding constants for Google gs101 ACPM clock controller. + */ + +#ifndef _DT_BINDINGS_CLOCK_GOOGLE_GS101_ACPM_H +#define _DT_BINDINGS_CLOCK_GOOGLE_GS101_ACPM_H + +#define GS101_CLK_ACPM_DVFS_MIF 0 +#define GS101_CLK_ACPM_DVFS_INT 1 +#define GS101_CLK_ACPM_DVFS_CPUCL0 2 +#define GS101_CLK_ACPM_DVFS_CPUCL1 3 +#define GS101_CLK_ACPM_DVFS_CPUCL2 4 +#define GS101_CLK_ACPM_DVFS_G3D 5 +#define GS101_CLK_ACPM_DVFS_G3DL2 6 +#define GS101_CLK_ACPM_DVFS_TPU 7 +#define GS101_CLK_ACPM_DVFS_INTCAM 8 +#define GS101_CLK_ACPM_DVFS_TNR 9 +#define GS101_CLK_ACPM_DVFS_CAM 10 +#define GS101_CLK_ACPM_DVFS_MFC 11 +#define GS101_CLK_ACPM_DVFS_DISP 12 +#define GS101_CLK_ACPM_DVFS_BO 13 + +#endif /* _DT_BINDINGS_CLOCK_GOOGLE_GS101_ACPM_H */ From 2e96df32009c2d7e4e210afdcce40bab17d0076e Mon Sep 17 00:00:00 2001 From: Tudor Ambarus Date: Wed, 24 Sep 2025 15:14:41 +0000 Subject: [PATCH 09/18] arm64: dts: exynos: gs101: add #clock-cells to the ACPM protocol node Make the ACPM node a clock provider by adding the mandatory "#clock-cells" property, which allows devices to reference its clock outputs. Signed-off-by: Tudor Ambarus Reviewed-by: Peter Griffin Tested-by: Peter Griffin # on gs101-oriole Link: https://patch.msgid.link/20250924-acpm-dvfs-dt-v4-1-3106d49e03f5@linaro.org Signed-off-by: Krzysztof Kozlowski --- arch/arm64/boot/dts/exynos/google/gs101.dtsi | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/boot/dts/exynos/google/gs101.dtsi b/arch/arm64/boot/dts/exynos/google/gs101.dtsi index 31c99526470d..f88d45a368af 100644 --- a/arch/arm64/boot/dts/exynos/google/gs101.dtsi +++ b/arch/arm64/boot/dts/exynos/google/gs101.dtsi @@ -202,6 +202,7 @@ firmware { acpm_ipc: power-management { compatible = "google,gs101-acpm-ipc"; + #clock-cells = <1>; mboxes = <&ap2apm_mailbox>; shmem = <&apm_sram>; }; From 025707fa269b0cf65fc2e10bcdf23359fd0e978b Mon Sep 17 00:00:00 2001 From: Tudor Ambarus Date: Wed, 24 Sep 2025 15:14:42 +0000 Subject: [PATCH 10/18] arm64: dts: exynos: gs101: add CPU clocks Add the GS101 CPU clocks exposed through the ACPM protocol. Signed-off-by: Tudor Ambarus Reviewed-by: Peter Griffin Tested-by: Peter Griffin # on gs101-oriole Link: https://patch.msgid.link/20250924-acpm-dvfs-dt-v4-2-3106d49e03f5@linaro.org Signed-off-by: Krzysztof Kozlowski --- arch/arm64/boot/dts/exynos/google/gs101.dtsi | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/arch/arm64/boot/dts/exynos/google/gs101.dtsi b/arch/arm64/boot/dts/exynos/google/gs101.dtsi index f88d45a368af..7326801c9ebf 100644 --- a/arch/arm64/boot/dts/exynos/google/gs101.dtsi +++ b/arch/arm64/boot/dts/exynos/google/gs101.dtsi @@ -7,6 +7,7 @@ */ #include +#include #include #include #include @@ -72,6 +73,7 @@ device_type = "cpu"; compatible = "arm,cortex-a55"; reg = <0x0000>; + clocks = <&acpm_ipc GS101_CLK_ACPM_DVFS_CPUCL0>; enable-method = "psci"; cpu-idle-states = <&ananke_cpu_sleep>; capacity-dmips-mhz = <250>; @@ -82,6 +84,7 @@ device_type = "cpu"; compatible = "arm,cortex-a55"; reg = <0x0100>; + clocks = <&acpm_ipc GS101_CLK_ACPM_DVFS_CPUCL0>; enable-method = "psci"; cpu-idle-states = <&ananke_cpu_sleep>; capacity-dmips-mhz = <250>; @@ -92,6 +95,7 @@ device_type = "cpu"; compatible = "arm,cortex-a55"; reg = <0x0200>; + clocks = <&acpm_ipc GS101_CLK_ACPM_DVFS_CPUCL0>; enable-method = "psci"; cpu-idle-states = <&ananke_cpu_sleep>; capacity-dmips-mhz = <250>; @@ -102,6 +106,7 @@ device_type = "cpu"; compatible = "arm,cortex-a55"; reg = <0x0300>; + clocks = <&acpm_ipc GS101_CLK_ACPM_DVFS_CPUCL0>; enable-method = "psci"; cpu-idle-states = <&ananke_cpu_sleep>; capacity-dmips-mhz = <250>; @@ -112,6 +117,7 @@ device_type = "cpu"; compatible = "arm,cortex-a76"; reg = <0x0400>; + clocks = <&acpm_ipc GS101_CLK_ACPM_DVFS_CPUCL1>; enable-method = "psci"; cpu-idle-states = <&enyo_cpu_sleep>; capacity-dmips-mhz = <620>; @@ -122,6 +128,7 @@ device_type = "cpu"; compatible = "arm,cortex-a76"; reg = <0x0500>; + clocks = <&acpm_ipc GS101_CLK_ACPM_DVFS_CPUCL1>; enable-method = "psci"; cpu-idle-states = <&enyo_cpu_sleep>; capacity-dmips-mhz = <620>; @@ -132,6 +139,7 @@ device_type = "cpu"; compatible = "arm,cortex-x1"; reg = <0x0600>; + clocks = <&acpm_ipc GS101_CLK_ACPM_DVFS_CPUCL2>; enable-method = "psci"; cpu-idle-states = <&hera_cpu_sleep>; capacity-dmips-mhz = <1024>; @@ -142,6 +150,7 @@ device_type = "cpu"; compatible = "arm,cortex-x1"; reg = <0x0700>; + clocks = <&acpm_ipc GS101_CLK_ACPM_DVFS_CPUCL2>; enable-method = "psci"; cpu-idle-states = <&hera_cpu_sleep>; capacity-dmips-mhz = <1024>; From bb103f6c7317bbc9cf4ee3a2482e74483876e412 Mon Sep 17 00:00:00 2001 From: Tudor Ambarus Date: Wed, 24 Sep 2025 15:14:43 +0000 Subject: [PATCH 11/18] arm64: dts: exynos: gs101: add OPPs Add operating performance points (OPPs). Signed-off-by: Tudor Ambarus Reviewed-by: Peter Griffin Tested-by: Peter Griffin # on gs101-oriole Link: https://patch.msgid.link/20250924-acpm-dvfs-dt-v4-3-3106d49e03f5@linaro.org Signed-off-by: Krzysztof Kozlowski --- arch/arm64/boot/dts/exynos/google/gs101.dtsi | 275 +++++++++++++++++++ 1 file changed, 275 insertions(+) diff --git a/arch/arm64/boot/dts/exynos/google/gs101.dtsi b/arch/arm64/boot/dts/exynos/google/gs101.dtsi index 7326801c9ebf..9d0d943fb08c 100644 --- a/arch/arm64/boot/dts/exynos/google/gs101.dtsi +++ b/arch/arm64/boot/dts/exynos/google/gs101.dtsi @@ -78,6 +78,7 @@ cpu-idle-states = <&ananke_cpu_sleep>; capacity-dmips-mhz = <250>; dynamic-power-coefficient = <70>; + operating-points-v2 = <&cpucl0_opp_table>; }; cpu1: cpu@100 { @@ -89,6 +90,7 @@ cpu-idle-states = <&ananke_cpu_sleep>; capacity-dmips-mhz = <250>; dynamic-power-coefficient = <70>; + operating-points-v2 = <&cpucl0_opp_table>; }; cpu2: cpu@200 { @@ -100,6 +102,7 @@ cpu-idle-states = <&ananke_cpu_sleep>; capacity-dmips-mhz = <250>; dynamic-power-coefficient = <70>; + operating-points-v2 = <&cpucl0_opp_table>; }; cpu3: cpu@300 { @@ -111,6 +114,7 @@ cpu-idle-states = <&ananke_cpu_sleep>; capacity-dmips-mhz = <250>; dynamic-power-coefficient = <70>; + operating-points-v2 = <&cpucl0_opp_table>; }; cpu4: cpu@400 { @@ -122,6 +126,7 @@ cpu-idle-states = <&enyo_cpu_sleep>; capacity-dmips-mhz = <620>; dynamic-power-coefficient = <284>; + operating-points-v2 = <&cpucl1_opp_table>; }; cpu5: cpu@500 { @@ -133,6 +138,7 @@ cpu-idle-states = <&enyo_cpu_sleep>; capacity-dmips-mhz = <620>; dynamic-power-coefficient = <284>; + operating-points-v2 = <&cpucl1_opp_table>; }; cpu6: cpu@600 { @@ -144,6 +150,7 @@ cpu-idle-states = <&hera_cpu_sleep>; capacity-dmips-mhz = <1024>; dynamic-power-coefficient = <650>; + operating-points-v2 = <&cpucl2_opp_table>; }; cpu7: cpu@700 { @@ -155,6 +162,7 @@ cpu-idle-states = <&hera_cpu_sleep>; capacity-dmips-mhz = <1024>; dynamic-power-coefficient = <650>; + operating-points-v2 = <&cpucl2_opp_table>; }; idle-states { @@ -192,6 +200,273 @@ }; }; + cpucl0_opp_table: opp-table-0 { + compatible = "operating-points-v2"; + opp-shared; + + opp-300000000 { + opp-hz = /bits/ 64 <300000000>; + opp-microvolt = <537500>; + clock-latency-ns = <500000>; + }; + + opp-574000000 { + opp-hz = /bits/ 64 <574000000>; + opp-microvolt = <600000>; + clock-latency-ns = <500000>; + }; + + opp-738000000 { + opp-hz = /bits/ 64 <738000000>; + opp-microvolt = <618750>; + clock-latency-ns = <500000>; + }; + + opp-930000000 { + opp-hz = /bits/ 64 <930000000>; + opp-microvolt = <668750>; + clock-latency-ns = <500000>; + }; + + opp-1098000000 { + opp-hz = /bits/ 64 <1098000000>; + opp-microvolt = <712500>; + clock-latency-ns = <500000>; + }; + + opp-1197000000 { + opp-hz = /bits/ 64 <1197000000>; + opp-microvolt = <731250>; + clock-latency-ns = <500000>; + }; + + opp-1328000000 { + opp-hz = /bits/ 64 <1328000000>; + opp-microvolt = <762500>; + clock-latency-ns = <500000>; + }; + + opp-1401000000 { + opp-hz = /bits/ 64 <1401000000>; + opp-microvolt = <781250>; + clock-latency-ns = <500000>; + }; + + opp-1598000000 { + opp-hz = /bits/ 64 <1598000000>; + opp-microvolt = <831250>; + clock-latency-ns = <500000>; + }; + + opp-1704000000 { + opp-hz = /bits/ 64 <1704000000>; + opp-microvolt = <862500>; + clock-latency-ns = <500000>; + }; + + opp-1803000000 { + opp-hz = /bits/ 64 <1803000000>; + opp-microvolt = <906250>; + clock-latency-ns = <500000>; + }; + }; + + cpucl1_opp_table: opp-table-1 { + compatible = "operating-points-v2"; + opp-shared; + + opp-400000000 { + opp-hz = /bits/ 64 <400000000>; + opp-microvolt = <506250>; + clock-latency-ns = <500000>; + }; + + opp-553000000 { + opp-hz = /bits/ 64 <553000000>; + opp-microvolt = <537500>; + clock-latency-ns = <500000>; + }; + + opp-696000000 { + opp-hz = /bits/ 64 <696000000>; + opp-microvolt = <562500>; + clock-latency-ns = <500000>; + }; + + opp-799000000 { + opp-hz = /bits/ 64 <799000000>; + opp-microvolt = <581250>; + clock-latency-ns = <500000>; + }; + + opp-910000000 { + opp-hz = /bits/ 64 <910000000>; + opp-microvolt = <606250>; + clock-latency-ns = <500000>; + }; + + opp-1024000000 { + opp-hz = /bits/ 64 <1024000000>; + opp-microvolt = <625000>; + clock-latency-ns = <500000>; + }; + + opp-1197000000 { + opp-hz = /bits/ 64 <1197000000>; + opp-microvolt = <662500>; + clock-latency-ns = <500000>; + }; + + opp-1328000000 { + opp-hz = /bits/ 64 <1328000000>; + opp-microvolt = <687500>; + clock-latency-ns = <500000>; + }; + + opp-1491000000 { + opp-hz = /bits/ 64 <1491000000>; + opp-microvolt = <731250>; + clock-latency-ns = <500000>; + }; + + opp-1663000000 { + opp-hz = /bits/ 64 <1663000000>; + opp-microvolt = <775000>; + clock-latency-ns = <500000>; + }; + + opp-1836000000 { + opp-hz = /bits/ 64 <1836000000>; + opp-microvolt = <818750>; + clock-latency-ns = <500000>; + }; + + opp-1999000000 { + opp-hz = /bits/ 64 <1999000000>; + opp-microvolt = <868750>; + clock-latency-ns = <500000>; + }; + + opp-2130000000 { + opp-hz = /bits/ 64 <2130000000>; + opp-microvolt = <918750>; + clock-latency-ns = <500000>; + }; + + opp-2253000000 { + opp-hz = /bits/ 64 <2253000000>; + opp-microvolt = <968750>; + clock-latency-ns = <500000>; + }; + }; + + cpucl2_opp_table: opp-table-2 { + compatible = "operating-points-v2"; + opp-shared; + + opp-500000000 { + opp-hz = /bits/ 64 <500000000>; + opp-microvolt = <500000>; + clock-latency-ns = <500000>; + }; + + opp-851000000 { + opp-hz = /bits/ 64 <851000000>; + opp-microvolt = <556250>; + clock-latency-ns = <500000>; + }; + + opp-984000000 { + opp-hz = /bits/ 64 <984000000>; + opp-microvolt = <575000>; + clock-latency-ns = <500000>; + }; + + opp-1106000000 { + opp-hz = /bits/ 64 <1106000000>; + opp-microvolt = <606250>; + clock-latency-ns = <500000>; + }; + + opp-1277000000 { + opp-hz = /bits/ 64 <1277000000>; + opp-microvolt = <631250>; + clock-latency-ns = <500000>; + }; + + opp-1426000000 { + opp-hz = /bits/ 64 <1426000000>; + opp-microvolt = <662500>; + clock-latency-ns = <500000>; + }; + + opp-1582000000 { + opp-hz = /bits/ 64 <1582000000>; + opp-microvolt = <693750>; + clock-latency-ns = <500000>; + }; + + opp-1745000000 { + opp-hz = /bits/ 64 <1745000000>; + opp-microvolt = <731250>; + clock-latency-ns = <500000>; + }; + + opp-1826000000 { + opp-hz = /bits/ 64 <1826000000>; + opp-microvolt = <750000>; + clock-latency-ns = <500000>; + }; + + opp-2048000000 { + opp-hz = /bits/ 64 <2048000000>; + opp-microvolt = <793750>; + clock-latency-ns = <500000>; + }; + + opp-2188000000 { + opp-hz = /bits/ 64 <2188000000>; + opp-microvolt = <831250>; + clock-latency-ns = <500000>; + }; + + opp-2252000000 { + opp-hz = /bits/ 64 <2252000000>; + opp-microvolt = <850000>; + clock-latency-ns = <500000>; + }; + + opp-2401000000 { + opp-hz = /bits/ 64 <2401000000>; + opp-microvolt = <887500>; + clock-latency-ns = <500000>; + }; + + opp-2507000000 { + opp-hz = /bits/ 64 <2507000000>; + opp-microvolt = <925000>; + clock-latency-ns = <500000>; + }; + + opp-2630000000 { + opp-hz = /bits/ 64 <2630000000>; + opp-microvolt = <968750>; + clock-latency-ns = <500000>; + }; + + opp-2704000000 { + opp-hz = /bits/ 64 <2704000000>; + opp-microvolt = <1000000>; + clock-latency-ns = <500000>; + }; + + opp-2802000000 { + opp-hz = /bits/ 64 <2802000000>; + opp-microvolt = <1056250>; + clock-latency-ns = <500000>; + }; + }; + /* ect node is required to be present by bootloader */ ect { }; From 08d9d0d9ae6f9f83bc1802a3f8ab2a4801ccd3e6 Mon Sep 17 00:00:00 2001 From: Peter Griffin Date: Mon, 13 Oct 2025 21:51:32 +0100 Subject: [PATCH 12/18] arm64: dts: exynos: gs101: add sysreg_misc and sysreg_hsi0 nodes MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Add syscon DT node for the hsi0 and misc sysreg controllers. These will be referenced by their respective CMU nodes in future patches. Signed-off-by: Peter Griffin Reviewed-by: André Draszik Link: https://patch.msgid.link/20251013-automatic-clocks-v1-3-72851ee00300@linaro.org Signed-off-by: Krzysztof Kozlowski --- arch/arm64/boot/dts/exynos/google/gs101.dtsi | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/arch/arm64/boot/dts/exynos/google/gs101.dtsi b/arch/arm64/boot/dts/exynos/google/gs101.dtsi index 9d0d943fb08c..ba002e88eb0b 100644 --- a/arch/arm64/boot/dts/exynos/google/gs101.dtsi +++ b/arch/arm64/boot/dts/exynos/google/gs101.dtsi @@ -580,6 +580,12 @@ clock-names = "bus", "sss"; }; + sysreg_misc: syscon@10030000 { + compatible = "google,gs101-misc-sysreg", "syscon"; + reg = <0x10030000 0x10000>; + clocks = <&cmu_misc CLK_GOUT_MISC_SYSREG_MISC_PCLK>; + }; + timer@10050000 { compatible = "google,gs101-mct", "samsung,exynos4210-mct"; @@ -1562,6 +1568,12 @@ "usbdpdbg"; }; + sysreg_hsi0: syscon@11020000 { + compatible = "google,gs101-hsi0-sysreg", "syscon"; + reg = <0x11020000 0x10000>; + clocks = <&cmu_hsi0 CLK_GOUT_HSI0_SYSREG_HSI0_PCLK>; + }; + usbdrd31_phy: phy@11100000 { compatible = "google,gs101-usb31drd-phy"; reg = <0x11100000 0x0200>, From ddb2a16804d005a96e8b5ffc0925e2f5bff65767 Mon Sep 17 00:00:00 2001 From: Peter Griffin Date: Mon, 13 Oct 2025 21:51:33 +0100 Subject: [PATCH 13/18] arm64: dts: exynos: gs101: fix clock module unit reg sizes MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The memory map lists each clock module unit as having a size of 0x10000. Additionally there are some undocumented registers in this region that need to be used for automatic clock gating mode. Some of those registers also need to be saved/restored on suspend & resume. Fixes: 86124c76683e ("arm64: dts: exynos: gs101: enable cmu-hsi2 clock controller") Fixes: 4982a4a2092e ("arm64: dts: exynos: gs101: enable cmu-hsi0 clock controller") Fixes: 7d66d98b5bf3 ("arm64: dts: exynos: gs101: enable cmu-peric1 clock controller") Fixes: e62c706f3aa0 ("arm64: dts: exynos: gs101: enable cmu-peric0 clock controller") Fixes: ea89fdf24fd9 ("arm64: dts: exynos: google: Add initial Google gs101 SoC support") Signed-off-by: Peter Griffin Reviewed-by: André Draszik Link: https://patch.msgid.link/20251013-automatic-clocks-v1-4-72851ee00300@linaro.org Signed-off-by: Krzysztof Kozlowski --- arch/arm64/boot/dts/exynos/google/gs101.dtsi | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/arch/arm64/boot/dts/exynos/google/gs101.dtsi b/arch/arm64/boot/dts/exynos/google/gs101.dtsi index ba002e88eb0b..47c900028370 100644 --- a/arch/arm64/boot/dts/exynos/google/gs101.dtsi +++ b/arch/arm64/boot/dts/exynos/google/gs101.dtsi @@ -573,7 +573,7 @@ cmu_misc: clock-controller@10010000 { compatible = "google,gs101-cmu-misc"; - reg = <0x10010000 0x8000>; + reg = <0x10010000 0x10000>; #clock-cells = <1>; clocks = <&cmu_top CLK_DOUT_CMU_MISC_BUS>, <&cmu_top CLK_DOUT_CMU_MISC_SSS>; @@ -656,7 +656,7 @@ cmu_peric0: clock-controller@10800000 { compatible = "google,gs101-cmu-peric0"; - reg = <0x10800000 0x4000>; + reg = <0x10800000 0x10000>; #clock-cells = <1>; clocks = <&ext_24_5m>, <&cmu_top CLK_DOUT_CMU_PERIC0_BUS>, @@ -1202,7 +1202,7 @@ cmu_peric1: clock-controller@10c00000 { compatible = "google,gs101-cmu-peric1"; - reg = <0x10c00000 0x4000>; + reg = <0x10c00000 0x10000>; #clock-cells = <1>; clocks = <&ext_24_5m>, <&cmu_top CLK_DOUT_CMU_PERIC1_BUS>, @@ -1556,7 +1556,7 @@ cmu_hsi0: clock-controller@11000000 { compatible = "google,gs101-cmu-hsi0"; - reg = <0x11000000 0x4000>; + reg = <0x11000000 0x10000>; #clock-cells = <1>; clocks = <&ext_24_5m>, @@ -1629,7 +1629,7 @@ cmu_hsi2: clock-controller@14400000 { compatible = "google,gs101-cmu-hsi2"; - reg = <0x14400000 0x4000>; + reg = <0x14400000 0x10000>; #clock-cells = <1>; clocks = <&ext_24_5m>, <&cmu_top CLK_DOUT_CMU_HSI2_BUS>, @@ -1692,7 +1692,7 @@ cmu_apm: clock-controller@17400000 { compatible = "google,gs101-cmu-apm"; - reg = <0x17400000 0x8000>; + reg = <0x17400000 0x10000>; #clock-cells = <1>; clocks = <&ext_24_5m>; @@ -1794,7 +1794,7 @@ cmu_top: clock-controller@1e080000 { compatible = "google,gs101-cmu-top"; - reg = <0x1e080000 0x8000>; + reg = <0x1e080000 0x10000>; #clock-cells = <1>; clocks = <&ext_24_5m>; From 4348c22a4f15dbef1314f1a353d7f053b24e9ace Mon Sep 17 00:00:00 2001 From: Peter Griffin Date: Mon, 13 Oct 2025 21:51:34 +0100 Subject: [PATCH 14/18] arm64: dts: exynos: gs101: fix sysreg_apm reg property MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Both the start address and size are incorrect for the apm_sysreg DT node. Update to match the TRM (rather than how it was defined downstream). Fixes: ea89fdf24fd9 ("arm64: dts: exynos: google: Add initial Google gs101 SoC support") Signed-off-by: Peter Griffin Reviewed-by: André Draszik Link: https://patch.msgid.link/20251013-automatic-clocks-v1-5-72851ee00300@linaro.org Signed-off-by: Krzysztof Kozlowski --- arch/arm64/boot/dts/exynos/google/gs101.dtsi | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm64/boot/dts/exynos/google/gs101.dtsi b/arch/arm64/boot/dts/exynos/google/gs101.dtsi index 47c900028370..d06d1d05f364 100644 --- a/arch/arm64/boot/dts/exynos/google/gs101.dtsi +++ b/arch/arm64/boot/dts/exynos/google/gs101.dtsi @@ -1699,9 +1699,9 @@ clock-names = "oscclk"; }; - sysreg_apm: syscon@174204e0 { + sysreg_apm: syscon@17420000 { compatible = "google,gs101-apm-sysreg", "syscon"; - reg = <0x174204e0 0x1000>; + reg = <0x17420000 0x10000>; }; pmu_system_controller: system-controller@17460000 { From fe02894a1930c85e542e5dd2044e6a3afcf717a7 Mon Sep 17 00:00:00 2001 From: Kaustabh Chakraborty Date: Fri, 31 Oct 2025 00:50:16 +0530 Subject: [PATCH 15/18] arm64: dts: exynos7870: add DSI support Add devicetree nodes for MIPI PHYs, Samsung's DECON and DSIM blocks, and DECON IOMMU devicetree nodes. Enables SoC support for hardware to be able to drive a MIPI DSI display. Signed-off-by: Kaustabh Chakraborty Link: https://patch.msgid.link/20251031-exynos7870-drm-dts-v4-2-c1f77fb16b87@disroot.org Signed-off-by: Krzysztof Kozlowski --- arch/arm64/boot/dts/exynos/exynos7870.dtsi | 84 ++++++++++++++++++++++ 1 file changed, 84 insertions(+) diff --git a/arch/arm64/boot/dts/exynos/exynos7870.dtsi b/arch/arm64/boot/dts/exynos/exynos7870.dtsi index d5d347623b90..2827e10d6962 100644 --- a/arch/arm64/boot/dts/exynos/exynos7870.dtsi +++ b/arch/arm64/boot/dts/exynos/exynos7870.dtsi @@ -178,6 +178,14 @@ "samsung,exynos7-pmu", "syscon"; reg = <0x10480000 0x10000>; + mipi_phy: mipi-phy { + compatible = "samsung,exynos7870-mipi-video-phy"; + #phy-cells = <1>; + + samsung,cam0-sysreg = <&syscon_cam0>; + samsung,disp-sysreg = <&syscon_disp>; + }; + reboot-mode { compatible = "syscon-reboot-mode"; offset = <0x080c>; @@ -675,6 +683,77 @@ <&cmu_mif CLK_GOUT_MIF_CMU_ISP_VRA>; }; + syscon_cam0: system-controller@144f1040 { + compatible = "samsung,exynos7870-cam0-sysreg", "syscon"; + reg = <0x144f1040 0x04>; + }; + + dsi: dsi@14800000 { + compatible = "samsung,exynos7870-mipi-dsi"; + reg = <0x14800000 0x100>; + interrupts = ; + + clocks = <&cmu_dispaud CLK_GOUT_DISPAUD_BUS_DISP>, + <&cmu_dispaud CLK_GOUT_DISPAUD_APB_DISP>, + <&cmu_dispaud CLK_GOUT_DISPAUD_MUX_MIPIPHY_TXBYTECLKHS_USER>, + <&cmu_dispaud CLK_GOUT_DISPAUD_MUX_MIPIPHY_RXCLKESC0_USER>; + clock-names = "bus", "pll", "byte", "esc"; + + phys = <&mipi_phy 1>; + phy-names = "dsim"; + + status = "disabled"; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + + dsi_to_decon: endpoint { + remote-endpoint = <&decon_to_dsi>; + }; + }; + }; + }; + + decon: display-controller@14830000 { + compatible = "samsung,exynos7870-decon"; + reg = <0x14830000 0x8000>; + interrupts = , + , + ; + interrupt-names = "fifo", "vsync", "lcd_sys"; + + clocks = <&cmu_dispaud CLK_GOUT_DISPAUD_MUX_PLL>, + <&cmu_dispaud CLK_GOUT_DISPAUD_MUX_BUS_USER>, + <&cmu_dispaud CLK_GOUT_DISPAUD_MUX_DECON_ECLK>, + <&cmu_dispaud CLK_GOUT_DISPAUD_MUX_DECON_VCLK>; + clock-names = "pclk_decon0", "aclk_decon0", + "decon0_eclk", "decon0_vclk"; + + iommus = <&sysmmu_decon>; + + status = "disabled"; + + port { + decon_to_dsi: endpoint { + remote-endpoint = <&dsi_to_decon>; + }; + }; + }; + + sysmmu_decon: iommu@14860000 { + compatible = "samsung,exynos-sysmmu"; + reg = <0x14860000 0x1000>; + interrupts = ; + #iommu-cells = <0>; + + clocks = <&cmu_dispaud CLK_GOUT_DISPAUD_MUX_BUS_USER>; + clock-names = "sysmmu"; + }; + pinctrl_dispaud: pinctrl@148c0000 { compatible = "samsung,exynos7870-pinctrl"; reg = <0x148c0000 0x1000>; @@ -692,6 +771,11 @@ <&cmu_mif CLK_GOUT_MIF_CMU_DISPAUD_DECON_ECLK>, <&cmu_mif CLK_GOUT_MIF_CMU_DISPAUD_DECON_VCLK>; }; + + syscon_disp: system-controller@148f100c { + compatible = "samsung,exynos7870-disp-sysreg", "syscon"; + reg = <0x148f100c 0x04>; + }; }; timer { From 35e69cc6bdef74a3c4794bd278a94dfb512abd7a Mon Sep 17 00:00:00 2001 From: Kaustabh Chakraborty Date: Fri, 31 Oct 2025 00:50:17 +0530 Subject: [PATCH 16/18] arm64: dts: exynos7870-on7xelte: enable display panel support Enable DECON and DSI nodes, and add the compatible display panel and appropriate panel timings for this device. Also, remove the simple-framebuffer node in favor of the panel. This device has a 1080x1920 Synaptics TD4300 display panel. Signed-off-by: Kaustabh Chakraborty Link: https://patch.msgid.link/20251031-exynos7870-drm-dts-v4-3-c1f77fb16b87@disroot.org Signed-off-by: Krzysztof Kozlowski --- .../boot/dts/exynos/exynos7870-on7xelte.dts | 57 ++++++++++++++----- 1 file changed, 43 insertions(+), 14 deletions(-) diff --git a/arch/arm64/boot/dts/exynos/exynos7870-on7xelte.dts b/arch/arm64/boot/dts/exynos/exynos7870-on7xelte.dts index 2a3d91d390ec..29e124c72e9d 100644 --- a/arch/arm64/boot/dts/exynos/exynos7870-on7xelte.dts +++ b/arch/arm64/boot/dts/exynos/exynos7870-on7xelte.dts @@ -27,20 +27,7 @@ }; chosen { - #address-cells = <2>; - #size-cells = <1>; - ranges; - stdout-path = &serial2; - - framebuffer@67000000 { - compatible = "simple-framebuffer"; - reg = <0x0 0x67000000 (1080 * 1920 * 4)>; - width = <1080>; - height = <1920>; - stride = <(1080 * 4)>; - format = "a8r8g8b8"; - }; }; gpio-keys { @@ -108,8 +95,9 @@ pmsg-size = <0x4000>; }; - framebuffer@67000000 { + cont_splash_mem: framebuffer@67000000 { reg = <0x0 0x67000000 (1080 * 1920 * 4)>; + iommu-addresses = <&decon 0x67000000 (1080 * 1920 * 4)>; no-map; }; }; @@ -122,6 +110,47 @@ }; }; +&decon { + memory-region = <&cont_splash_mem>; + + status = "okay"; +}; + +&dsi { + #address-cells = <1>; + #size-cells = <0>; + + samsung,burst-clock-frequency = <1001000000>; + samsung,esc-clock-frequency = <16000000>; + samsung,pll-clock-frequency = <26000000>; + + status = "okay"; + + panel@0 { + compatible = "syna,td4300-panel"; + reg = <0>; + + backlight-gpios = <&gpd3 5 GPIO_ACTIVE_LOW>; + + width-mm = <68>; + height-mm = <121>; + + panel-timing { + clock-frequency = <144389520>; + + hactive = <1080>; + hsync-len = <4>; + hfront-porch = <120>; + hback-porch = <32>; + + vactive = <1920>; + vsync-len = <2>; + vfront-porch = <21>; + vback-porch = <4>; + }; + }; +}; + &gpu { status = "okay"; }; From ba2cd209cf8dc6e826f3ede80212911c23ed2076 Mon Sep 17 00:00:00 2001 From: Kaustabh Chakraborty Date: Fri, 31 Oct 2025 00:50:18 +0530 Subject: [PATCH 17/18] arm64: dts: exynos7870-a2corelte: enable display panel support Enable DECON and DSI nodes, and add the compatible display panel and appropriate panel timings for this device. Also, remove the simple-framebuffer node in favor of the panel. This device has a 540x960 Synaptics TD4101 display panel. Signed-off-by: Kaustabh Chakraborty Link: https://patch.msgid.link/20251031-exynos7870-drm-dts-v4-4-c1f77fb16b87@disroot.org Signed-off-by: Krzysztof Kozlowski --- .../boot/dts/exynos/exynos7870-a2corelte.dts | 57 ++++++++++++++----- 1 file changed, 43 insertions(+), 14 deletions(-) diff --git a/arch/arm64/boot/dts/exynos/exynos7870-a2corelte.dts b/arch/arm64/boot/dts/exynos/exynos7870-a2corelte.dts index 07467158ee6a..6f40ca4350ed 100644 --- a/arch/arm64/boot/dts/exynos/exynos7870-a2corelte.dts +++ b/arch/arm64/boot/dts/exynos/exynos7870-a2corelte.dts @@ -27,20 +27,7 @@ }; chosen { - #address-cells = <2>; - #size-cells = <1>; - ranges; - stdout-path = &serial2; - - framebuffer@67000000 { - compatible = "simple-framebuffer"; - reg = <0x0 0x67000000 (540 * 960 * 4)>; - width = <540>; - height = <960>; - stride = <(540 * 4)>; - format = "a8r8g8b8"; - }; }; gpio-keys { @@ -110,8 +97,9 @@ pmsg-size = <0x4000>; }; - framebuffer@67000000 { + cont_splash_mem: framebuffer@67000000 { reg = <0x0 0x67000000 (540 * 960 * 4)>; + iommu-addresses = <&decon 0x67000000 (540 * 960 * 4)>; no-map; }; }; @@ -124,6 +112,47 @@ }; }; +&decon { + memory-region = <&cont_splash_mem>; + + status = "okay"; +}; + +&dsi { + #address-cells = <1>; + #size-cells = <0>; + + samsung,burst-clock-frequency = <836000000>; + samsung,esc-clock-frequency = <16000000>; + samsung,pll-clock-frequency = <26000000>; + + status = "okay"; + + panel@0 { + compatible = "syna,td4101-panel"; + reg = <0>; + + backlight-gpios = <&gpd3 7 GPIO_ACTIVE_LOW>; + + width-mm = <62>; + height-mm = <110>; + + panel-timing { + clock-frequency = <69336720>; + + hactive = <540>; + hsync-len = <4>; + hfront-porch = <364>; + hback-porch = <40>; + + vactive = <960>; + vsync-len = <2>; + vfront-porch = <244>; + vback-porch = <13>; + }; + }; +}; + &gpu { status = "okay"; }; From cad767a9af055c921e29b7b268f99e83c82baab3 Mon Sep 17 00:00:00 2001 From: Kaustabh Chakraborty Date: Fri, 31 Oct 2025 00:50:19 +0530 Subject: [PATCH 18/18] arm64: dts: exynos7870-j6lte: enable display panel support Enable DECON and DSI nodes, and add the compatible display panel and appropriate panel timings for this device. Also, remove the simple-framebuffer node in favor of the panel. This device has a 720x1480 AMOLED Samsung AMS561RA01 panel with S6E8AA5X01 controller. Signed-off-by: Kaustabh Chakraborty Link: https://patch.msgid.link/20251031-exynos7870-drm-dts-v4-5-c1f77fb16b87@disroot.org Signed-off-by: Krzysztof Kozlowski --- .../boot/dts/exynos/exynos7870-j6lte.dts | 38 ++++++++++++------- 1 file changed, 24 insertions(+), 14 deletions(-) diff --git a/arch/arm64/boot/dts/exynos/exynos7870-j6lte.dts b/arch/arm64/boot/dts/exynos/exynos7870-j6lte.dts index eb4701dbafc5..09f2367cfec9 100644 --- a/arch/arm64/boot/dts/exynos/exynos7870-j6lte.dts +++ b/arch/arm64/boot/dts/exynos/exynos7870-j6lte.dts @@ -27,20 +27,7 @@ }; chosen { - #address-cells = <2>; - #size-cells = <1>; - ranges; - stdout-path = &serial2; - - framebuffer@67000000 { - compatible = "simple-framebuffer"; - reg = <0x0 0x67000000 (720 * 1480 * 4)>; - width = <720>; - height = <1480>; - stride = <(720 * 4)>; - format = "a8r8g8b8"; - }; }; gpio-hall-effect-sensor { @@ -119,8 +106,9 @@ pmsg-size = <0x4000>; }; - framebuffer@67000000 { + cont_splash_mem: framebuffer@67000000 { reg = <0x0 0x67000000 (720 * 1480 * 4)>; + iommu-addresses = <&decon 0x67000000 (720 * 1480 * 4)>; no-map; }; }; @@ -133,6 +121,28 @@ }; }; +&decon { + memory-region = <&cont_splash_mem>; + + status = "okay"; +}; + +&dsi { + #address-cells = <1>; + #size-cells = <0>; + + samsung,burst-clock-frequency = <500000000>; + samsung,esc-clock-frequency = <16000000>; + samsung,pll-clock-frequency = <26000000>; + + status = "okay"; + + panel@0 { + compatible = "samsung,s6e8aa5x01-ams561ra01"; + reg = <0>; + }; +}; + &gpu { status = "okay"; };