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authorStephen Boyd <sboyd@kernel.org>2024-05-09 04:15:23 +0300
committerStephen Boyd <sboyd@kernel.org>2024-05-09 04:15:23 +0300
commitce6896285410bcfe90f8566ff0799e45e7820e52 (patch)
tree195359ac813195ba36490cd5923785e6e9e8d748 /Documentation
parent4cece764965020c22cff7665b18a012006359095 (diff)
parent7c18b0a5aa46cc7e5d3a7ef3f9f8e3aa91bb780f (diff)
downloadlinux-ce6896285410bcfe90f8566ff0799e45e7820e52.tar.xz
Merge tag 'samsung-clk-6.10-2' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into clk-samsung
Pull Samsung clk driver updates from Krzysztof Kozlowski: - Allow choice of manual or firmware-driven control over PLLs, needed to fully implement CPU clock controllers on Exynos850 - Correct PLL clock IDs on ExynosAutov9 - Propagate certain clock rates to allow setting proper SPI clock rates on Google GS101 - Add HSI0 and HSI2 clock controllers for Google GS101 - Mark certain Google GS101 clocks critical - Convert old S3C64xx clock controller bindings to DT schema * tag 'samsung-clk-6.10-2' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux: clk: samsung: gs101: drop unused HSI2 clock parent data clk: samsung: gs101: mark some apm UASC and XIU clocks critical clk: samsung: gs101: add support for cmu_hsi2 clk: samsung: gs101: add support for cmu_hsi0 dt-bindings: clock: google,gs101-clock: add HSI2 clock management unit dt-bindings: clock: google,gs101-clock: add HSI0 clock management unit clk: samsung: gs101: propagate PERIC1 USI SPI clock rate clk: samsung: gs101: propagate PERIC0 USI SPI clock rate clk: samsung: exynosautov9: fix wrong pll clock id value dt-bindings: clock: samsung,s3c6400-clock: convert to DT Schema clk: samsung: exynos850: Add CMU_CPUCL0 and CMU_CPUCL1 clk: samsung: Implement manual PLL control for ARM64 SoCs
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/devicetree/bindings/clock/google,gs101-clock.yaml55
-rw-r--r--Documentation/devicetree/bindings/clock/samsung,s3c6400-clock.yaml57
-rw-r--r--Documentation/devicetree/bindings/clock/samsung,s3c64xx-clock.txt76
3 files changed, 110 insertions, 78 deletions
diff --git a/Documentation/devicetree/bindings/clock/google,gs101-clock.yaml b/Documentation/devicetree/bindings/clock/google,gs101-clock.yaml
index 1d2bcea41c85..caf442ead24b 100644
--- a/Documentation/devicetree/bindings/clock/google,gs101-clock.yaml
+++ b/Documentation/devicetree/bindings/clock/google,gs101-clock.yaml
@@ -30,16 +30,18 @@ properties:
- google,gs101-cmu-top
- google,gs101-cmu-apm
- google,gs101-cmu-misc
+ - google,gs101-cmu-hsi0
+ - google,gs101-cmu-hsi2
- google,gs101-cmu-peric0
- google,gs101-cmu-peric1
clocks:
minItems: 1
- maxItems: 3
+ maxItems: 5
clock-names:
minItems: 1
- maxItems: 3
+ maxItems: 5
"#clock-cells":
const: 1
@@ -76,6 +78,55 @@ allOf:
properties:
compatible:
contains:
+ const: google,gs101-cmu-hsi0
+
+ then:
+ properties:
+ clocks:
+ items:
+ - description: External reference clock (24.576 MHz)
+ - description: HSI0 bus clock (from CMU_TOP)
+ - description: DPGTC (from CMU_TOP)
+ - description: USB DRD controller clock (from CMU_TOP)
+ - description: USB Display Port debug clock (from CMU_TOP)
+
+ clock-names:
+ items:
+ - const: oscclk
+ - const: bus
+ - const: dpgtc
+ - const: usb31drd
+ - const: usbdpdbg
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - google,gs101-cmu-hsi2
+
+ then:
+ properties:
+ clocks:
+ items:
+ - description: External reference clock (24.576 MHz)
+ - description: High Speed Interface bus clock (from CMU_TOP)
+ - description: High Speed Interface pcie clock (from CMU_TOP)
+ - description: High Speed Interface ufs clock (from CMU_TOP)
+ - description: High Speed Interface mmc clock (from CMU_TOP)
+
+ clock-names:
+ items:
+ - const: oscclk
+ - const: bus
+ - const: pcie
+ - const: ufs
+ - const: mmc
+
+ - if:
+ properties:
+ compatible:
+ contains:
const: google,gs101-cmu-misc
then:
diff --git a/Documentation/devicetree/bindings/clock/samsung,s3c6400-clock.yaml b/Documentation/devicetree/bindings/clock/samsung,s3c6400-clock.yaml
new file mode 100644
index 000000000000..0fcc0c963f8f
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/samsung,s3c6400-clock.yaml
@@ -0,0 +1,57 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/samsung,s3c6400-clock.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Samsung S3C6400 SoC clock controller
+
+maintainers:
+ - Krzysztof Kozlowski <krzk@kernel.org>
+
+description: |
+ There are several clocks that are generated outside the SoC. It is expected
+ that they are defined using standard clock bindings with following
+ clock-output-names and/or provided as clock inputs to this clock controller:
+ - "fin_pll" - PLL input clock (xtal/extclk) - required,
+ - "xusbxti" - USB xtal - required,
+ - "iiscdclk0" - I2S0 codec clock - optional,
+ - "iiscdclk1" - I2S1 codec clock - optional,
+ - "iiscdclk2" - I2S2 codec clock - optional,
+ - "pcmcdclk0" - PCM0 codec clock - optional,
+ - "pcmcdclk1" - PCM1 codec clock - optional, only S3C6410.
+
+ All available clocks are defined as preprocessor macros in
+ include/dt-bindings/clock/samsung,s3c64xx-clock.h header.
+
+properties:
+ compatible:
+ enum:
+ - samsung,s3c6400-clock
+ - samsung,s3c6410-clock
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ "#clock-cells":
+ const: 1
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - "#clock-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ clock-controller@7e00f000 {
+ compatible = "samsung,s3c6410-clock";
+ reg = <0x7e00f000 0x1000>;
+ #clock-cells = <1>;
+ clocks = <&fin_pll>;
+ };
diff --git a/Documentation/devicetree/bindings/clock/samsung,s3c64xx-clock.txt b/Documentation/devicetree/bindings/clock/samsung,s3c64xx-clock.txt
deleted file mode 100644
index 872ee8e0f041..000000000000
--- a/Documentation/devicetree/bindings/clock/samsung,s3c64xx-clock.txt
+++ /dev/null
@@ -1,76 +0,0 @@
-* Samsung S3C64xx Clock Controller
-
-The S3C64xx clock controller generates and supplies clock to various controllers
-within the SoC. The clock binding described here is applicable to all SoCs in
-the S3C64xx family.
-
-Required Properties:
-
-- compatible: should be one of the following.
- - "samsung,s3c6400-clock" - controller compatible with S3C6400 SoC.
- - "samsung,s3c6410-clock" - controller compatible with S3C6410 SoC.
-
-- reg: physical base address of the controller and length of memory mapped
- region.
-
-- #clock-cells: should be 1.
-
-Each clock is assigned an identifier and client nodes can use this identifier
-to specify the clock which they consume. Some of the clocks are available only
-on a particular S3C64xx SoC and this is specified where applicable.
-
-All available clocks are defined as preprocessor macros in
-dt-bindings/clock/samsung,s3c64xx-clock.h header and can be used in device
-tree sources.
-
-External clocks:
-
-There are several clocks that are generated outside the SoC. It is expected
-that they are defined using standard clock bindings with following
-clock-output-names:
- - "fin_pll" - PLL input clock (xtal/extclk) - required,
- - "xusbxti" - USB xtal - required,
- - "iiscdclk0" - I2S0 codec clock - optional,
- - "iiscdclk1" - I2S1 codec clock - optional,
- - "iiscdclk2" - I2S2 codec clock - optional,
- - "pcmcdclk0" - PCM0 codec clock - optional,
- - "pcmcdclk1" - PCM1 codec clock - optional, only S3C6410.
-
-Example: Clock controller node:
-
- clock: clock-controller@7e00f000 {
- compatible = "samsung,s3c6410-clock";
- reg = <0x7e00f000 0x1000>;
- #clock-cells = <1>;
- };
-
-Example: Required external clocks:
-
- fin_pll: clock-fin-pll {
- compatible = "fixed-clock";
- clock-output-names = "fin_pll";
- clock-frequency = <12000000>;
- #clock-cells = <0>;
- };
-
- xusbxti: clock-xusbxti {
- compatible = "fixed-clock";
- clock-output-names = "xusbxti";
- clock-frequency = <48000000>;
- #clock-cells = <0>;
- };
-
-Example: UART controller node that consumes the clock generated by the clock
- controller (refer to the standard clock bindings for information about
- "clocks" and "clock-names" properties):
-
- uart0: serial@7f005000 {
- compatible = "samsung,s3c6400-uart";
- reg = <0x7f005000 0x100>;
- interrupt-parent = <&vic1>;
- interrupts = <5>;
- clock-names = "uart", "clk_uart_baud2",
- "clk_uart_baud3";
- clocks = <&clock PCLK_UART0>, <&clocks PCLK_UART0>,
- <&clock SCLK_UART>;
- };