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linux/Documentation/devicetree/bindings/pwm/pwm-tiehrpwm.txt

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pwm: tiehrpwm: Add device-tree binding This patch 1. Add support for device-tree binding for EHRWPM driver. 2. Set size of pwm-cells set to 3 to support PWM channel number, PWM period & polarity configuration from device tree. 3. Add enable/disable clock gating in PWM subsystem common config space. 4. When here set .owner member in platform_driver structure to THIS_MODULE. Signed-off-by: Philip, Avinash <avinashphilip@ti.com> Cc: Grant Likely <grant.likely@secretlab.ca> Cc: Rob Herring <rob.herring@calxeda.com> Cc: Rob Landley <rob@landley.net> Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
2012-11-27 08:48:13 +00:00
TI SOC EHRPWM based PWM controller
Required properties:
pwm: pwm-tiehrpwm: Update device-tree binding document Update binding document of pwm-tiehrpwm to reflect the usage of similar modules in da850 and am3xx SOCs. Signed-off-by: Philip Avinash <avinashphilip@ti.com> Cc: Grant Likely <grant.likely@secretlab.ca> Cc: Rob Herring <rob.herring@calxeda.com> Cc: Rob Landley <rob@landley.net> Acked-by: Peter Korsgaard <jacmet@sunsite.dk> Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
2013-03-25 07:04:53 +00:00
- compatible: Must be "ti,<soc>-ehrpwm".
ARM: dts: am437x/am33xx/da850: Add new ECAP and EPWM bindings 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@ti.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-05-03 15:56:51 +00:00
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";
ARM: dts: DRA7: Add dt nodes for PWMSS Add PWMSS device tree nodes for DRA7 SoC family and add documentation for dt bindings. Signed-off-by: Vignesh R <vigneshr@ti.com> [fcooper@ti.com: Add eCAP and use updated bindings for PWMSS and ePWM] Signed-off-by: Franklin S Cooper Jr <fcooper@ti.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-05-03 15:56:55 +00:00
for dra746 - compatible = "ti,dra746-ehrpwm", "ti-am3352-ehrpwm";
pwm: Update DT bindings to reference pwm.txt for cells documentation The PWM client cells format is documented in the generic pwm.txt documentation and duplicated in all PWM driver bindings. Remove duplicate information and reference pwm.txt instead. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Reviewed-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2013-07-17 22:54:23 +00:00
- #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.
pwm: tiehrpwm: Add device-tree binding This patch 1. Add support for device-tree binding for EHRWPM driver. 2. Set size of pwm-cells set to 3 to support PWM channel number, PWM period & polarity configuration from device tree. 3. Add enable/disable clock gating in PWM subsystem common config space. 4. When here set .owner member in platform_driver structure to THIS_MODULE. Signed-off-by: Philip, Avinash <avinashphilip@ti.com> Cc: Grant Likely <grant.likely@secretlab.ca> Cc: Rob Herring <rob.herring@calxeda.com> Cc: Rob Landley <rob@landley.net> Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
2012-11-27 08:48:13 +00:00
- reg: physical base address and size of the registers map.
Optional properties:
ARM: dts: am437x/am33xx/da850: Add new ECAP and EPWM bindings 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@ti.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-05-03 15:56:51 +00:00
- clocks: Handle to the PWM's time-base and functional clock.
- clock-names: Must be set to "tbclk" and "fck".
pwm: tiehrpwm: Add device-tree binding This patch 1. Add support for device-tree binding for EHRWPM driver. 2. Set size of pwm-cells set to 3 to support PWM channel number, PWM period & polarity configuration from device tree. 3. Add enable/disable clock gating in PWM subsystem common config space. 4. When here set .owner member in platform_driver structure to THIS_MODULE. Signed-off-by: Philip, Avinash <avinashphilip@ti.com> Cc: Grant Likely <grant.likely@secretlab.ca> Cc: Rob Herring <rob.herring@calxeda.com> Cc: Rob Landley <rob@landley.net> Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
2012-11-27 08:48:13 +00:00
Example:
pwm: pwm-tiehrpwm: Update dt binding document to use generic node name Now that the node name has been changed from ehrpwm to pwm the document should show this proper usage. Change the unit address in the example from 0 to the proper physical address value that should be used. Also insure that the unit address matches to the reg property. Signed-off-by: Franklin S Cooper Jr <fcooper@ti.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-05-03 15:56:49 +00:00
ehrpwm0: pwm@48300200 { /* EHRPWM on am33xx */
ARM: dts: am437x/am33xx/da850: Add new ECAP and EPWM bindings 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@ti.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-05-03 15:56:51 +00:00
compatible = "ti,am3352-ehrpwm", "ti,am33xx-ehrpwm";
pwm: tiehrpwm: Add device-tree binding This patch 1. Add support for device-tree binding for EHRWPM driver. 2. Set size of pwm-cells set to 3 to support PWM channel number, PWM period & polarity configuration from device tree. 3. Add enable/disable clock gating in PWM subsystem common config space. 4. When here set .owner member in platform_driver structure to THIS_MODULE. Signed-off-by: Philip, Avinash <avinashphilip@ti.com> Cc: Grant Likely <grant.likely@secretlab.ca> Cc: Rob Herring <rob.herring@calxeda.com> Cc: Rob Landley <rob@landley.net> Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
2012-11-27 08:48:13 +00:00
#pwm-cells = <3>;
reg = <0x48300200 0x100>;
ARM: dts: am437x/am33xx/da850: Add new ECAP and EPWM bindings 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@ti.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-05-03 15:56:51 +00:00
clocks = <&ehrpwm0_tbclk>, <&l4ls_gclk>;
clock-names = "tbclk", "fck";
pwm: tiehrpwm: Add device-tree binding This patch 1. Add support for device-tree binding for EHRWPM driver. 2. Set size of pwm-cells set to 3 to support PWM channel number, PWM period & polarity configuration from device tree. 3. Add enable/disable clock gating in PWM subsystem common config space. 4. When here set .owner member in platform_driver structure to THIS_MODULE. Signed-off-by: Philip, Avinash <avinashphilip@ti.com> Cc: Grant Likely <grant.likely@secretlab.ca> Cc: Rob Herring <rob.herring@calxeda.com> Cc: Rob Landley <rob@landley.net> Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
2012-11-27 08:48:13 +00:00
};
pwm: pwm-tiehrpwm: Update device-tree binding document Update binding document of pwm-tiehrpwm to reflect the usage of similar modules in da850 and am3xx SOCs. Signed-off-by: Philip Avinash <avinashphilip@ti.com> Cc: Grant Likely <grant.likely@secretlab.ca> Cc: Rob Herring <rob.herring@calxeda.com> Cc: Rob Landley <rob@landley.net> Acked-by: Peter Korsgaard <jacmet@sunsite.dk> Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
2013-03-25 07:04:53 +00:00
pwm: pwm-tiehrpwm: Update dt binding document to use generic node name Now that the node name has been changed from ehrpwm to pwm the document should show this proper usage. Change the unit address in the example from 0 to the proper physical address value that should be used. Also insure that the unit address matches to the reg property. Signed-off-by: Franklin S Cooper Jr <fcooper@ti.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-05-03 15:56:49 +00:00
ehrpwm0: pwm@48300200 { /* EHRPWM on am4372 */
ARM: dts: am437x/am33xx/da850: Add new ECAP and EPWM bindings 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@ti.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-05-03 15:56:51 +00:00
compatible = "ti,am4372-ehrpwm", "ti,am3352-ehrpwm", "ti,am33xx-ehrpwm";
ARM: dts: am437x: Add missing compatibles to PWM binding documents There are several SOC specific compatibles for ECAP, EHRPWM and PWMMS that are in use but aren't properly documented. Therefore, fix this by adding the compatibles to the appropriate binding documents. While at it make minor corrections to the binding document. Signed-off-by: Franklin S Cooper Jr <fcooper@ti.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-05-03 15:56:48 +00:00
#pwm-cells = <3>;
reg = <0x48300200 0x80>;
ARM: dts: am437x/am33xx/da850: Add new ECAP and EPWM bindings 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@ti.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-05-03 15:56:51 +00:00
clocks = <&ehrpwm0_tbclk>, <&l4ls_gclk>;
clock-names = "tbclk", "fck";
ARM: dts: am437x: Add missing compatibles to PWM binding documents There are several SOC specific compatibles for ECAP, EHRPWM and PWMMS that are in use but aren't properly documented. Therefore, fix this by adding the compatibles to the appropriate binding documents. While at it make minor corrections to the binding document. Signed-off-by: Franklin S Cooper Jr <fcooper@ti.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-05-03 15:56:48 +00:00
ti,hwmods = "ehrpwm0";
};
pwm: pwm-tiehrpwm: Update dt binding document to use generic node name Now that the node name has been changed from ehrpwm to pwm the document should show this proper usage. Change the unit address in the example from 0 to the proper physical address value that should be used. Also insure that the unit address matches to the reg property. Signed-off-by: Franklin S Cooper Jr <fcooper@ti.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-05-03 15:56:49 +00:00
ehrpwm0: pwm@1f00000 { /* EHRPWM on da850 */
ARM: dts: am437x/am33xx/da850: Add new ECAP and EPWM bindings 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@ti.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-05-03 15:56:51 +00:00
compatible = "ti,da850-ehrpwm", "ti,am3352-ehrpwm", "ti,am33xx-ehrpwm";
pwm: pwm-tiehrpwm: Update device-tree binding document Update binding document of pwm-tiehrpwm to reflect the usage of similar modules in da850 and am3xx SOCs. Signed-off-by: Philip Avinash <avinashphilip@ti.com> Cc: Grant Likely <grant.likely@secretlab.ca> Cc: Rob Herring <rob.herring@calxeda.com> Cc: Rob Landley <rob@landley.net> Acked-by: Peter Korsgaard <jacmet@sunsite.dk> Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
2013-03-25 07:04:53 +00:00
#pwm-cells = <3>;
pwm: pwm-tiehrpwm: Update dt binding document to use generic node name Now that the node name has been changed from ehrpwm to pwm the document should show this proper usage. Change the unit address in the example from 0 to the proper physical address value that should be used. Also insure that the unit address matches to the reg property. Signed-off-by: Franklin S Cooper Jr <fcooper@ti.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-05-03 15:56:49 +00:00
reg = <0x1f00000 0x2000>;
pwm: pwm-tiehrpwm: Update device-tree binding document Update binding document of pwm-tiehrpwm to reflect the usage of similar modules in da850 and am3xx SOCs. Signed-off-by: Philip Avinash <avinashphilip@ti.com> Cc: Grant Likely <grant.likely@secretlab.ca> Cc: Rob Herring <rob.herring@calxeda.com> Cc: Rob Landley <rob@landley.net> Acked-by: Peter Korsgaard <jacmet@sunsite.dk> Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
2013-03-25 07:04:53 +00:00
};
ARM: dts: DRA7: Add dt nodes for PWMSS Add PWMSS device tree nodes for DRA7 SoC family and add documentation for dt bindings. Signed-off-by: Vignesh R <vigneshr@ti.com> [fcooper@ti.com: Add eCAP and use updated bindings for PWMSS and ePWM] Signed-off-by: Franklin S Cooper Jr <fcooper@ti.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-05-03 15:56:55 +00:00
ehrpwm0: pwm@4843e200 { /* EHRPWM on dra746 */
compatible = "ti,dra746-ehrpwm", "ti,am3352-ehrpwm";
#pwm-cells = <3>;
reg = <0x4843e200 0x80>;
clocks = <&ehrpwm0_tbclk>, <&l4_root_clk_div>;
clock-names = "tbclk", "fck";
};
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