From: Mikko Perttunen <cyndis-/1wQRMveznE@public.gmane.org>
To: swarren-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org,
thierry.reding-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org
Cc: linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
wni-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org,
Mikko Perttunen
<mperttunen-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
Subject: [PATCH v3 1/5] of: Add descriptions of thermtrip properties to Tegra PMC bindings
Date: Sat, 6 Sep 2014 11:54:41 +0300 [thread overview]
Message-ID: <1409993685-21911-2-git-send-email-cyndis@kapsi.fi> (raw)
In-Reply-To: <1409993685-21911-1-git-send-email-cyndis-/1wQRMveznE@public.gmane.org>
From: Mikko Perttunen <mperttunen-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
Hardware-triggered thermal reset requires configuring the I2C
reset procedure. This configuration is read from the device tree,
so document the relevant properties in the binding documentation.
Signed-off-by: Mikko Perttunen <mperttunen-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
Reviewed-by: Wei Ni <wni-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
Tested-by: Wei Ni <wni-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
---
v3
- replaced nvidia,pmu with nvidia,{i2c-bus,bus-addr}
- documented nvidia,pinmux-id
.../bindings/arm/tegra/nvidia,tegra20-pmc.txt | 23 ++++++++++++++++++++++
1 file changed, 23 insertions(+)
diff --git a/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-pmc.txt b/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-pmc.txt
index 68ac65f..1d4e94a 100644
--- a/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-pmc.txt
+++ b/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-pmc.txt
@@ -47,6 +47,21 @@ Required properties when nvidia,suspend-mode=<0>:
sleep mode, the warm boot code will restore some PLLs, clocks and then
bring up CPU0 for resuming the system.
+Hardware-triggered thermal reset:
+On Tegra30, Tegra114 and Tegra124, if the 'i2c-thermtrip' subnode exists,
+hardware-triggered thermal reset will be enabled.
+
+Required properties for hardware-triggered thermal reset (inside 'i2c-thermtrip'):
+- nvidia,i2c-bus : Phandle to I2C bus containing the PMU
+- nvidia,bus-addr : Bus address of the PMU on the I2C bus
+- nvidia,reg-addr : I2C register address to write poweroff command to
+- nvidia,reg-data : Poweroff command to write to PMU
+
+Optional properties for hardware-triggered thermal reset (inside 'i2c-thermtrip'):
+- nvidia,pinmux-id : Pinmux used by the hardware when issuing poweroff command.
+ Defaults to 0. Valid values are described in section 12.5.2
+ "Pinmux Support" of the Tegra4 Technical Reference Manual.
+
Example:
/ SoC dts including file
@@ -69,6 +84,14 @@ pmc@7000f400 {
/ Tegra board dts file
{
...
+ pmc@7000f400 {
+ i2c-thermtrip {
+ nvidia,pmu = <&pmic>;
+ nvidia,reg-addr = <0x36>;
+ nvidia,reg-data = <0x2>;
+ };
+ };
+ ...
clocks {
compatible = "simple-bus";
#address-cells = <1>;
--
2.1.0
WARNING: multiple messages have this Message-ID (diff)
From: Mikko Perttunen <cyndis@kapsi.fi>
To: swarren@wwwdotorg.org, thierry.reding@gmail.com
Cc: linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-tegra@vger.kernel.org, wni@nvidia.com,
Mikko Perttunen <mperttunen@nvidia.com>
Subject: [PATCH v3 1/5] of: Add descriptions of thermtrip properties to Tegra PMC bindings
Date: Sat, 6 Sep 2014 11:54:41 +0300 [thread overview]
Message-ID: <1409993685-21911-2-git-send-email-cyndis@kapsi.fi> (raw)
In-Reply-To: <1409993685-21911-1-git-send-email-cyndis@kapsi.fi>
From: Mikko Perttunen <mperttunen@nvidia.com>
Hardware-triggered thermal reset requires configuring the I2C
reset procedure. This configuration is read from the device tree,
so document the relevant properties in the binding documentation.
Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Reviewed-by: Wei Ni <wni@nvidia.com>
Tested-by: Wei Ni <wni@nvidia.com>
---
v3
- replaced nvidia,pmu with nvidia,{i2c-bus,bus-addr}
- documented nvidia,pinmux-id
.../bindings/arm/tegra/nvidia,tegra20-pmc.txt | 23 ++++++++++++++++++++++
1 file changed, 23 insertions(+)
diff --git a/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-pmc.txt b/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-pmc.txt
index 68ac65f..1d4e94a 100644
--- a/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-pmc.txt
+++ b/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-pmc.txt
@@ -47,6 +47,21 @@ Required properties when nvidia,suspend-mode=<0>:
sleep mode, the warm boot code will restore some PLLs, clocks and then
bring up CPU0 for resuming the system.
+Hardware-triggered thermal reset:
+On Tegra30, Tegra114 and Tegra124, if the 'i2c-thermtrip' subnode exists,
+hardware-triggered thermal reset will be enabled.
+
+Required properties for hardware-triggered thermal reset (inside 'i2c-thermtrip'):
+- nvidia,i2c-bus : Phandle to I2C bus containing the PMU
+- nvidia,bus-addr : Bus address of the PMU on the I2C bus
+- nvidia,reg-addr : I2C register address to write poweroff command to
+- nvidia,reg-data : Poweroff command to write to PMU
+
+Optional properties for hardware-triggered thermal reset (inside 'i2c-thermtrip'):
+- nvidia,pinmux-id : Pinmux used by the hardware when issuing poweroff command.
+ Defaults to 0. Valid values are described in section 12.5.2
+ "Pinmux Support" of the Tegra4 Technical Reference Manual.
+
Example:
/ SoC dts including file
@@ -69,6 +84,14 @@ pmc@7000f400 {
/ Tegra board dts file
{
...
+ pmc@7000f400 {
+ i2c-thermtrip {
+ nvidia,pmu = <&pmic>;
+ nvidia,reg-addr = <0x36>;
+ nvidia,reg-data = <0x2>;
+ };
+ };
+ ...
clocks {
compatible = "simple-bus";
#address-cells = <1>;
--
2.1.0
WARNING: multiple messages have this Message-ID (diff)
From: cyndis@kapsi.fi (Mikko Perttunen)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v3 1/5] of: Add descriptions of thermtrip properties to Tegra PMC bindings
Date: Sat, 6 Sep 2014 11:54:41 +0300 [thread overview]
Message-ID: <1409993685-21911-2-git-send-email-cyndis@kapsi.fi> (raw)
In-Reply-To: <1409993685-21911-1-git-send-email-cyndis@kapsi.fi>
From: Mikko Perttunen <mperttunen@nvidia.com>
Hardware-triggered thermal reset requires configuring the I2C
reset procedure. This configuration is read from the device tree,
so document the relevant properties in the binding documentation.
Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Reviewed-by: Wei Ni <wni@nvidia.com>
Tested-by: Wei Ni <wni@nvidia.com>
---
v3
- replaced nvidia,pmu with nvidia,{i2c-bus,bus-addr}
- documented nvidia,pinmux-id
.../bindings/arm/tegra/nvidia,tegra20-pmc.txt | 23 ++++++++++++++++++++++
1 file changed, 23 insertions(+)
diff --git a/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-pmc.txt b/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-pmc.txt
index 68ac65f..1d4e94a 100644
--- a/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-pmc.txt
+++ b/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra20-pmc.txt
@@ -47,6 +47,21 @@ Required properties when nvidia,suspend-mode=<0>:
sleep mode, the warm boot code will restore some PLLs, clocks and then
bring up CPU0 for resuming the system.
+Hardware-triggered thermal reset:
+On Tegra30, Tegra114 and Tegra124, if the 'i2c-thermtrip' subnode exists,
+hardware-triggered thermal reset will be enabled.
+
+Required properties for hardware-triggered thermal reset (inside 'i2c-thermtrip'):
+- nvidia,i2c-bus : Phandle to I2C bus containing the PMU
+- nvidia,bus-addr : Bus address of the PMU on the I2C bus
+- nvidia,reg-addr : I2C register address to write poweroff command to
+- nvidia,reg-data : Poweroff command to write to PMU
+
+Optional properties for hardware-triggered thermal reset (inside 'i2c-thermtrip'):
+- nvidia,pinmux-id : Pinmux used by the hardware when issuing poweroff command.
+ Defaults to 0. Valid values are described in section 12.5.2
+ "Pinmux Support" of the Tegra4 Technical Reference Manual.
+
Example:
/ SoC dts including file
@@ -69,6 +84,14 @@ pmc at 7000f400 {
/ Tegra board dts file
{
...
+ pmc at 7000f400 {
+ i2c-thermtrip {
+ nvidia,pmu = <&pmic>;
+ nvidia,reg-addr = <0x36>;
+ nvidia,reg-data = <0x2>;
+ };
+ };
+ ...
clocks {
compatible = "simple-bus";
#address-cells = <1>;
--
2.1.0
next prev parent reply other threads:[~2014-09-06 8:54 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-06 8:54 [PATCH v3 0/5] Thermal reset support in PMC Mikko Perttunen
2014-09-06 8:54 ` Mikko Perttunen
[not found] ` <1409993685-21911-1-git-send-email-cyndis-/1wQRMveznE@public.gmane.org>
2014-09-06 8:54 ` Mikko Perttunen [this message]
2014-09-06 8:54 ` [PATCH v3 1/5] of: Add descriptions of thermtrip properties to Tegra PMC bindings Mikko Perttunen
2014-09-06 8:54 ` Mikko Perttunen
[not found] ` <1409993685-21911-2-git-send-email-cyndis-/1wQRMveznE@public.gmane.org>
2014-09-06 9:03 ` [PATCH v4 " Mikko Perttunen
2014-09-06 9:03 ` Mikko Perttunen
2014-09-06 9:03 ` Mikko Perttunen
2014-09-06 8:54 ` [PATCH v3 2/5] of: Add nvidia,controller-id property to Tegra I2C bindings Mikko Perttunen
2014-09-06 8:54 ` [PATCH v3 2/5] of: Add nvidia, controller-id " Mikko Perttunen
2014-09-06 8:54 ` [PATCH v3 2/5] of: Add nvidia,controller-id " Mikko Perttunen
2014-09-06 8:54 ` [PATCH v3 4/5] ARM: tegra: Add PMC thermtrip programming to Jetson TK1 device tree Mikko Perttunen
2014-09-06 8:54 ` Mikko Perttunen
2014-09-06 8:54 ` Mikko Perttunen
2014-09-06 8:54 ` [PATCH v3 3/5] ARM: tegra124: Add I2C controller ids to " Mikko Perttunen
2014-09-06 8:54 ` Mikko Perttunen
2014-09-06 8:54 ` [PATCH v3 5/5] ARM: tegra: Add thermal reset (thermtrip) support to PMC Mikko Perttunen
2014-09-06 8:54 ` Mikko Perttunen
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