[PATCH v8 5/9] ARM: dts: am437x/am33xx/da850: Add new ECAP and EPWM bindings
Franklin S Cooper Jr
fcooper at ti.com
Tue May 3 08:56:51 PDT 2016
Switch to a new ECAP and EPWM bindings that doesn't depend on hwmod to
provide the various required clocks.
For AM437 and AM335x, add the required clocks explicitly to DT. The
hwmod entries for ECAP and EPWM will be removed and this will prevent
anything from breaking.
Signed-off-by: Franklin S Cooper Jr <fcooper at ti.com>
Acked-by: Rob Herring <robh at kernel.org>
---
.../devicetree/bindings/pwm/pwm-tiecap.txt | 18 +++++---
.../devicetree/bindings/pwm/pwm-tiehrpwm.txt | 18 +++++---
arch/arm/boot/dts/am33xx.dtsi | 30 +++++++++---
arch/arm/boot/dts/am4372.dtsi | 54 ++++++++++++++++++----
arch/arm/boot/dts/da850.dtsi | 15 ++++--
5 files changed, 103 insertions(+), 32 deletions(-)
diff --git a/Documentation/devicetree/bindings/pwm/pwm-tiecap.txt b/Documentation/devicetree/bindings/pwm/pwm-tiecap.txt
index 0d47354..ee0a8bd 100644
--- a/Documentation/devicetree/bindings/pwm/pwm-tiecap.txt
+++ b/Documentation/devicetree/bindings/pwm/pwm-tiecap.txt
@@ -2,9 +2,9 @@ TI SOC ECAP based APWM controller
Required properties:
- compatible: Must be "ti,<soc>-ecap".
- for am33xx - compatible = "ti,am33xx-ecap";
- for am4372 - compatible = "ti,am4372-ecap", "ti,am33xx-ecap";
- for da850 - compatible = "ti,da850-ecap", "ti,am33xx-ecap";
+ for am33xx - compatible = "ti,am3352-ecap", "ti,am33xx-ecap";
+ for am4372 - compatible = "ti,am4372-ecap", "ti,am3352-ecap", "ti,am33xx-ecap";
+ for da850 - compatible = "ti,da850-ecap", "ti,am3352-ecap", "ti,am33xx-ecap";
- #pwm-cells: should be 3. See pwm.txt in this directory for a description of
the cells format. The PWM channel index ranges from 0 to 4. The only third
cell flag supported by this binding is PWM_POLARITY_INVERTED.
@@ -13,25 +13,31 @@ Required properties:
Optional properties:
- ti,hwmods: Name of the hwmod associated to the ECAP:
"ecap<x>", <x> being the 0-based instance number from the HW spec
+- clocks: Handle to the ECAP's functional clock.
+- clock-names: Must be set to "fck".
Example:
ecap0: ecap at 48300100 { /* ECAP on am33xx */
- compatible = "ti,am33xx-ecap";
+ compatible = "ti,am3352-ecap", "ti,am33xx-ecap";
#pwm-cells = <3>;
reg = <0x48300100 0x80>;
ti,hwmods = "ecap0";
+ clocks = <&l4ls_gclk>;
+ clock-names = "fck";
};
ecap0: ecap at 48300100 { /* ECAP on am4372 */
- compatible = "ti,am4372-ecap", "ti,am33xx-ecap";
+ compatible = "ti,am4372-ecap", "ti,am3352-ecap", "ti,am33xx-ecap";
#pwm-cells = <3>;
reg = <0x48300100 0x80>;
ti,hwmods = "ecap0";
+ clocks = <&l4ls_gclk>;
+ clock-names = "fck";
};
ecap0: ecap at 1f06000 { /* ECAP on da850 */
- compatible = "ti,da850-ecap", "ti,am33xx-ecap";
+ compatible = "ti,da850-ecap", "ti,am3352-ecap", "ti,am33xx-ecap";
#pwm-cells = <3>;
reg = <0x1f06000 0x80>;
};
diff --git a/Documentation/devicetree/bindings/pwm/pwm-tiehrpwm.txt b/Documentation/devicetree/bindings/pwm/pwm-tiehrpwm.txt
index f3bc09e..e9a156b 100644
--- a/Documentation/devicetree/bindings/pwm/pwm-tiehrpwm.txt
+++ b/Documentation/devicetree/bindings/pwm/pwm-tiehrpwm.txt
@@ -2,9 +2,9 @@ TI SOC EHRPWM based PWM controller
Required properties:
- compatible: Must be "ti,<soc>-ehrpwm".
- for am33xx - compatible = "ti,am33xx-ehrpwm";
- for am4372 - compatible = "ti,am4372-ehrpwm", "ti,am33xx-ehrpwm";
- for da850 - compatible = "ti,da850-ehrpwm", "ti,am33xx-ehrpwm";
+ for am33xx - compatible = "ti,am3352-ehrpwm", "ti,am33xx-ehrpwm";
+ for am4372 - compatible = "ti,am4372-ehrpwm", "ti-am3352-ehrpwm", "ti,am33xx-ehrpwm";
+ for da850 - compatible = "ti,da850-ehrpwm", "ti-am3352-ehrpwm", "ti,am33xx-ehrpwm";
- #pwm-cells: should be 3. See pwm.txt in this directory for a description of
the cells format. The only third cell flag supported by this binding is
PWM_POLARITY_INVERTED.
@@ -13,25 +13,31 @@ Required properties:
Optional properties:
- ti,hwmods: Name of the hwmod associated to the EHRPWM:
"ehrpwm<x>", <x> being the 0-based instance number from the HW spec
+- clocks: Handle to the PWM's time-base and functional clock.
+- clock-names: Must be set to "tbclk" and "fck".
Example:
ehrpwm0: pwm at 48300200 { /* EHRPWM on am33xx */
- compatible = "ti,am33xx-ehrpwm";
+ compatible = "ti,am3352-ehrpwm", "ti,am33xx-ehrpwm";
#pwm-cells = <3>;
reg = <0x48300200 0x100>;
+ clocks = <&ehrpwm0_tbclk>, <&l4ls_gclk>;
+ clock-names = "tbclk", "fck";
ti,hwmods = "ehrpwm0";
};
ehrpwm0: pwm at 48300200 { /* EHRPWM on am4372 */
- compatible = "ti,am4372-ehrpwm", "ti,am33xx-ehrpwm";
+ compatible = "ti,am4372-ehrpwm", "ti,am3352-ehrpwm", "ti,am33xx-ehrpwm";
#pwm-cells = <3>;
reg = <0x48300200 0x80>;
+ clocks = <&ehrpwm0_tbclk>, <&l4ls_gclk>;
+ clock-names = "tbclk", "fck";
ti,hwmods = "ehrpwm0";
};
ehrpwm0: pwm at 1f00000 { /* EHRPWM on da850 */
- compatible = "ti,da850-ehrpwm", "ti,am33xx-ehrpwm";
+ compatible = "ti,da850-ehrpwm", "ti,am3352-ehrpwm", "ti,am33xx-ehrpwm";
#pwm-cells = <3>;
reg = <0x1f00000 0x2000>;
};
diff --git a/arch/arm/boot/dts/am33xx.dtsi b/arch/arm/boot/dts/am33xx.dtsi
index 52be48b..999ba2f 100644
--- a/arch/arm/boot/dts/am33xx.dtsi
+++ b/arch/arm/boot/dts/am33xx.dtsi
@@ -679,9 +679,12 @@
0x48300200 0x48300200 0x80>; /* EHRPWM */
ecap0: ecap at 48300100 {
- compatible = "ti,am33xx-ecap";
+ compatible = "ti,am3352-ecap",
+ "ti,am33xx-ecap";
#pwm-cells = <3>;
reg = <0x48300100 0x80>;
+ clocks = <&l4ls_gclk>;
+ clock-names = "fck";
interrupts = <31>;
interrupt-names = "ecap0";
ti,hwmods = "ecap0";
@@ -689,10 +692,13 @@
};
ehrpwm0: pwm at 48300200 {
- compatible = "ti,am33xx-ehrpwm";
+ compatible = "ti,am3352-ehrpwm",
+ "ti,am33xx-ehrpwm";
#pwm-cells = <3>;
reg = <0x48300200 0x80>;
ti,hwmods = "ehrpwm0";
+ clocks = <&ehrpwm0_tbclk>, <&l4ls_gclk>;
+ clock-names = "tbclk", "fck";
status = "disabled";
};
};
@@ -709,9 +715,12 @@
0x48302200 0x48302200 0x80>; /* EHRPWM */
ecap1: ecap at 48302100 {
- compatible = "ti,am33xx-ecap";
+ compatible = "ti,am3352-ecap",
+ "ti,am33xx-ecap";
#pwm-cells = <3>;
reg = <0x48302100 0x80>;
+ clocks = <&l4ls_gclk>;
+ clock-names = "fck";
interrupts = <47>;
interrupt-names = "ecap1";
ti,hwmods = "ecap1";
@@ -719,10 +728,13 @@
};
ehrpwm1: pwm at 48302200 {
- compatible = "ti,am33xx-ehrpwm";
+ compatible = "ti,am3352-ehrpwm",
+ "ti,am33xx-ehrpwm";
#pwm-cells = <3>;
reg = <0x48302200 0x80>;
ti,hwmods = "ehrpwm1";
+ clocks = <&ehrpwm1_tbclk>, <&l4ls_gclk>;
+ clock-names = "tbclk", "fck";
status = "disabled";
};
};
@@ -739,9 +751,12 @@
0x48304200 0x48304200 0x80>; /* EHRPWM */
ecap2: ecap at 48304100 {
- compatible = "ti,am33xx-ecap";
+ compatible = "ti,am3352-ecap",
+ "ti,am33xx-ecap";
#pwm-cells = <3>;
reg = <0x48304100 0x80>;
+ clocks = <&l4ls_gclk>;
+ clock-names = "fck";
interrupts = <61>;
interrupt-names = "ecap2";
ti,hwmods = "ecap2";
@@ -749,10 +764,13 @@
};
ehrpwm2: pwm at 48304200 {
- compatible = "ti,am33xx-ehrpwm";
+ compatible = "ti,am3352-ehrpwm",
+ "ti,am33xx-ehrpwm";
#pwm-cells = <3>;
reg = <0x48304200 0x80>;
ti,hwmods = "ehrpwm2";
+ clocks = <&ehrpwm2_tbclk>, <&l4ls_gclk>;
+ clock-names = "tbclk", "fck";
status = "disabled";
};
};
diff --git a/arch/arm/boot/dts/am4372.dtsi b/arch/arm/boot/dts/am4372.dtsi
index 12fcde4..e858460 100644
--- a/arch/arm/boot/dts/am4372.dtsi
+++ b/arch/arm/boot/dts/am4372.dtsi
@@ -672,18 +672,26 @@
status = "disabled";
ecap0: ecap at 48300100 {
- compatible = "ti,am4372-ecap","ti,am33xx-ecap";
+ compatible = "ti,am4372-ecap",
+ "ti,am3352-ecap",
+ "ti,am33xx-ecap";
#pwm-cells = <3>;
reg = <0x48300100 0x80>;
ti,hwmods = "ecap0";
+ clocks = <&l4ls_gclk>;
+ clock-names = "fck";
status = "disabled";
};
ehrpwm0: pwm at 48300200 {
- compatible = "ti,am4372-ehrpwm","ti,am33xx-ehrpwm";
+ compatible = "ti,am4372-ehrpwm",
+ "ti,am3352-ehrpwm",
+ "ti,am33xx-ehrpwm";
#pwm-cells = <3>;
reg = <0x48300200 0x80>;
ti,hwmods = "ehrpwm0";
+ clocks = <&ehrpwm0_tbclk>, <&l4ls_gclk>;
+ clock-names = "tbclk", "fck";
status = "disabled";
};
};
@@ -698,18 +706,26 @@
status = "disabled";
ecap1: ecap at 48302100 {
- compatible = "ti,am4372-ecap","ti,am33xx-ecap";
+ compatible = "ti,am4372-ecap",
+ "ti,am3352-ecap",
+ "ti,am33xx-ecap";
#pwm-cells = <3>;
reg = <0x48302100 0x80>;
ti,hwmods = "ecap1";
+ clocks = <&l4ls_gclk>;
+ clock-names = "fck";
status = "disabled";
};
ehrpwm1: pwm at 48302200 {
- compatible = "ti,am4372-ehrpwm","ti,am33xx-ehrpwm";
+ compatible = "ti,am4372-ehrpwm",
+ "ti,am3352-ehrpwm",
+ "ti,am33xx-ehrpwm";
#pwm-cells = <3>;
reg = <0x48302200 0x80>;
ti,hwmods = "ehrpwm1";
+ clocks = <&ehrpwm1_tbclk>, <&l4ls_gclk>;
+ clock-names = "tbclk", "fck";
status = "disabled";
};
};
@@ -724,18 +740,26 @@
status = "disabled";
ecap2: ecap at 48304100 {
- compatible = "ti,am4372-ecap","ti,am33xx-ecap";
+ compatible = "ti,am4372-ecap",
+ "ti,am3352-ecap",
+ "ti,am33xx-ecap";
#pwm-cells = <3>;
reg = <0x48304100 0x80>;
+ clocks = <&l4ls_gclk>;
+ clock-names = "fck";
ti,hwmods = "ecap2";
status = "disabled";
};
ehrpwm2: pwm at 48304200 {
- compatible = "ti,am4372-ehrpwm","ti,am33xx-ehrpwm";
+ compatible = "ti,am4372-ehrpwm",
+ "ti,am3352-ehrpwm",
+ "ti,am33xx-ehrpwm";
#pwm-cells = <3>;
reg = <0x48304200 0x80>;
ti,hwmods = "ehrpwm2";
+ clocks = <&ehrpwm2_tbclk>, <&l4ls_gclk>;
+ clock-names = "tbclk", "fck";
status = "disabled";
};
};
@@ -750,10 +774,14 @@
status = "disabled";
ehrpwm3: pwm at 48306200 {
- compatible = "ti,am4372-ehrpwm","ti,am33xx-ehrpwm";
+ compatible = "ti,am4372-ehrpwm",
+ "ti,am3352-ehrpwm",
+ "ti,am33xx-ehrpwm";
#pwm-cells = <3>;
reg = <0x48306200 0x80>;
ti,hwmods = "ehrpwm3";
+ clocks = <&ehrpwm3_tbclk>, <&l4ls_gclk>;
+ clock-names = "tbclk", "fck";
status = "disabled";
};
};
@@ -768,10 +796,14 @@
status = "disabled";
ehrpwm4: pwm at 48308200 {
- compatible = "ti,am4372-ehrpwm","ti,am33xx-ehrpwm";
+ compatible = "ti,am4372-ehrpwm",
+ "ti,am3352-ehrpwm",
+ "ti,am33xx-ehrpwm";
#pwm-cells = <3>;
reg = <0x48308200 0x80>;
ti,hwmods = "ehrpwm4";
+ clocks = <&ehrpwm4_tbclk>, <&l4ls_gclk>;
+ clock-names = "tbclk", "fck";
status = "disabled";
};
};
@@ -786,9 +818,13 @@
status = "disabled";
ehrpwm5: pwm at 4830a200 {
- compatible = "ti,am4372-ehrpwm","ti,am33xx-ehrpwm";
+ compatible = "ti,am4372-ehrpwm",
+ "ti,am3352-ehrpwm",
+ "ti,am33xx-ehrpwm";
#pwm-cells = <3>;
reg = <0x4830a200 0x80>;
+ clocks = <&ehrpwm5_tbclk>, <&l4ls_gclk>;
+ clock-names = "tbclk", "fck";
ti,hwmods = "ehrpwm5";
status = "disabled";
};
diff --git a/arch/arm/boot/dts/da850.dtsi b/arch/arm/boot/dts/da850.dtsi
index c3910e2..28a1064 100644
--- a/arch/arm/boot/dts/da850.dtsi
+++ b/arch/arm/boot/dts/da850.dtsi
@@ -248,31 +248,36 @@
status = "disabled";
};
ehrpwm0: pwm at 01f00000 {
- compatible = "ti,da850-ehrpwm", "ti,am33xx-ehrpwm";
+ compatible = "ti,da850-ehrpwm", "ti,am3352-ehrpwm",
+ "ti,am33xx-ehrpwm";
#pwm-cells = <3>;
reg = <0x300000 0x2000>;
status = "disabled";
};
ehrpwm1: pwm at 01f02000 {
- compatible = "ti,da850-ehrpwm", "ti,am33xx-ehrpwm";
+ compatible = "ti,da850-ehrpwm", "ti,am3352-ehrpwm",
+ "ti,am33xx-ehrpwm";
#pwm-cells = <3>;
reg = <0x302000 0x2000>;
status = "disabled";
};
ecap0: ecap at 01f06000 {
- compatible = "ti,da850-ecap", "ti,am33xx-ecap";
+ compatible = "ti,da850-ecap", "ti,am3352-ecap",
+ "ti,am33xx-ecap";
#pwm-cells = <3>;
reg = <0x306000 0x80>;
status = "disabled";
};
ecap1: ecap at 01f07000 {
- compatible = "ti,da850-ecap", "ti,am33xx-ecap";
+ compatible = "ti,da850-ecap", "ti,am3352-ecap",
+ "ti,am33xx-ecap";
#pwm-cells = <3>;
reg = <0x307000 0x80>;
status = "disabled";
};
ecap2: ecap at 01f08000 {
- compatible = "ti,da850-ecap", "ti,am33xx-ecap";
+ compatible = "ti,da850-ecap", "ti,am3352-ecap",
+ "ti,am33xx-ecap";
#pwm-cells = <3>;
reg = <0x308000 0x80>;
status = "disabled";
--
2.7.0
More information about the linux-arm-kernel
mailing list