* [PATCH 1/2] ARM: dts: imx6ull-tarragon: fix USB over-current polarity
2024-04-16 19:06 [PATCH 0/2] ARM: dts: imx6ull-tarragon: Minor changes Stefan Wahren
@ 2024-04-16 19:06 ` Stefan Wahren
2024-04-16 19:06 ` [PATCH 2/2] ARM: dts: imx6ull-tarragon: Reduce SPI clock for QCA7000 Stefan Wahren
2024-04-25 6:21 ` [PATCH 0/2] ARM: dts: imx6ull-tarragon: Minor changes Shawn Guo
2 siblings, 0 replies; 6+ messages in thread
From: Stefan Wahren @ 2024-04-16 19:06 UTC (permalink / raw)
To: Rob Herring, Krzysztof Kozlowski, Conor Dooley, Shawn Guo,
Sascha Hauer, Fabio Estevam
Cc: kernel, imx, devicetree, linux-arm-kernel, Michael Heimpold,
Stefan Wahren
From: Michael Heimpold <michael.heimpold@chargebyte.com>
Our Tarragon platform uses a active-low signal to inform
the i.MX6ULL about the over-current detection.
Fixes: 5e4f393ccbf0 ("ARM: dts: imx6ull: Add chargebyte Tarragon support")
Signed-off-by: Michael Heimpold <michael.heimpold@chargebyte.com>
Signed-off-by: Stefan Wahren <wahrenst@gmx.net>
---
arch/arm/boot/dts/nxp/imx/imx6ull-tarragon-common.dtsi | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/arm/boot/dts/nxp/imx/imx6ull-tarragon-common.dtsi b/arch/arm/boot/dts/nxp/imx/imx6ull-tarragon-common.dtsi
index 3fdece5bd31f..5248a058230c 100644
--- a/arch/arm/boot/dts/nxp/imx/imx6ull-tarragon-common.dtsi
+++ b/arch/arm/boot/dts/nxp/imx/imx6ull-tarragon-common.dtsi
@@ -805,6 +805,7 @@ &usbotg1 {
&pinctrl_usb_pwr>;
dr_mode = "host";
power-active-high;
+ over-current-active-low;
disable-over-current;
status = "okay";
};
--
2.34.1
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^ permalink raw reply related [flat|nested] 6+ messages in thread* [PATCH 2/2] ARM: dts: imx6ull-tarragon: Reduce SPI clock for QCA7000
2024-04-16 19:06 [PATCH 0/2] ARM: dts: imx6ull-tarragon: Minor changes Stefan Wahren
2024-04-16 19:06 ` [PATCH 1/2] ARM: dts: imx6ull-tarragon: fix USB over-current polarity Stefan Wahren
@ 2024-04-16 19:06 ` Stefan Wahren
2024-04-17 3:00 ` Fabio Estevam
2024-04-25 6:21 ` [PATCH 0/2] ARM: dts: imx6ull-tarragon: Minor changes Shawn Guo
2 siblings, 1 reply; 6+ messages in thread
From: Stefan Wahren @ 2024-04-16 19:06 UTC (permalink / raw)
To: Rob Herring, Krzysztof Kozlowski, Conor Dooley, Shawn Guo,
Sascha Hauer, Fabio Estevam
Cc: kernel, imx, devicetree, linux-arm-kernel, Stefan Wahren
Our hardware department recently informed us that, according to
the specification, the QCA7000 should be operated with a
maximum SPI clock frequency of 12 MHz. Even if it appears to work
at a higher frequency, we should not take any risks here. A short
performance test showed no measurable loss of speed.
Signed-off-by: Stefan Wahren <wahrenst@gmx.net>
---
arch/arm/boot/dts/nxp/imx/imx6ull-tarragon-master.dts | 4 ++--
arch/arm/boot/dts/nxp/imx/imx6ull-tarragon-slave.dts | 2 +-
arch/arm/boot/dts/nxp/imx/imx6ull-tarragon-slavext.dts | 2 +-
3 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/arch/arm/boot/dts/nxp/imx/imx6ull-tarragon-master.dts b/arch/arm/boot/dts/nxp/imx/imx6ull-tarragon-master.dts
index 67007ce383e3..f9bbd589b66d 100644
--- a/arch/arm/boot/dts/nxp/imx/imx6ull-tarragon-master.dts
+++ b/arch/arm/boot/dts/nxp/imx/imx6ull-tarragon-master.dts
@@ -45,7 +45,7 @@ &pinctrl_qca700x_cp_rst
interrupts = <19 IRQ_TYPE_EDGE_RISING>;
spi-cpha;
spi-cpol;
- spi-max-frequency = <16000000>;
+ spi-max-frequency = <12000000>;
};
};
@@ -63,7 +63,7 @@ &pinctrl_qca700x_mains_rst
interrupts = <9 IRQ_TYPE_EDGE_RISING>;
spi-cpha;
spi-cpol;
- spi-max-frequency = <16000000>;
+ spi-max-frequency = <12000000>;
};
};
diff --git a/arch/arm/boot/dts/nxp/imx/imx6ull-tarragon-slave.dts b/arch/arm/boot/dts/nxp/imx/imx6ull-tarragon-slave.dts
index cee223b5f8e1..ef06619d7c86 100644
--- a/arch/arm/boot/dts/nxp/imx/imx6ull-tarragon-slave.dts
+++ b/arch/arm/boot/dts/nxp/imx/imx6ull-tarragon-slave.dts
@@ -23,7 +23,7 @@ &pinctrl_qca700x_cp_rst
interrupts = <19 IRQ_TYPE_EDGE_RISING>;
spi-cpha;
spi-cpol;
- spi-max-frequency = <16000000>;
+ spi-max-frequency = <12000000>;
};
};
diff --git a/arch/arm/boot/dts/nxp/imx/imx6ull-tarragon-slavext.dts b/arch/arm/boot/dts/nxp/imx/imx6ull-tarragon-slavext.dts
index 7fd53b7a4372..83db65bf630f 100644
--- a/arch/arm/boot/dts/nxp/imx/imx6ull-tarragon-slavext.dts
+++ b/arch/arm/boot/dts/nxp/imx/imx6ull-tarragon-slavext.dts
@@ -45,7 +45,7 @@ &pinctrl_qca700x_cp_rst
interrupts = <19 IRQ_TYPE_EDGE_RISING>;
spi-cpha;
spi-cpol;
- spi-max-frequency = <16000000>;
+ spi-max-frequency = <12000000>;
};
};
--
2.34.1
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^ permalink raw reply related [flat|nested] 6+ messages in thread
* Re: [PATCH 2/2] ARM: dts: imx6ull-tarragon: Reduce SPI clock for QCA7000
2024-04-16 19:06 ` [PATCH 2/2] ARM: dts: imx6ull-tarragon: Reduce SPI clock for QCA7000 Stefan Wahren
@ 2024-04-17 3:00 ` Fabio Estevam
2024-04-17 10:44 ` Stefan Wahren
0 siblings, 1 reply; 6+ messages in thread
From: Fabio Estevam @ 2024-04-17 3:00 UTC (permalink / raw)
To: Stefan Wahren
Cc: Rob Herring, Krzysztof Kozlowski, Conor Dooley, Shawn Guo,
Sascha Hauer, kernel, imx, devicetree, linux-arm-kernel
Hi Stefan,
On Tue, Apr 16, 2024 at 4:07 PM Stefan Wahren <wahrenst@gmx.net> wrote:
>
> Our hardware department recently informed us that, according to
> the specification, the QCA7000 should be operated with a
> maximum SPI clock frequency of 12 MHz. Even if it appears to work
> at a higher frequency, we should not take any risks here. A short
> performance test showed no measurable loss of speed.
Should this one have a Fixes tag?
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^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH 2/2] ARM: dts: imx6ull-tarragon: Reduce SPI clock for QCA7000
2024-04-17 3:00 ` Fabio Estevam
@ 2024-04-17 10:44 ` Stefan Wahren
0 siblings, 0 replies; 6+ messages in thread
From: Stefan Wahren @ 2024-04-17 10:44 UTC (permalink / raw)
To: Fabio Estevam
Cc: Rob Herring, Krzysztof Kozlowski, Conor Dooley, Shawn Guo,
Sascha Hauer, kernel, imx, devicetree, linux-arm-kernel
Hi Fabio,
Am 17.04.24 um 05:00 schrieb Fabio Estevam:
> Hi Stefan,
>
> On Tue, Apr 16, 2024 at 4:07 PM Stefan Wahren <wahrenst@gmx.net> wrote:
>> Our hardware department recently informed us that, according to
>> the specification, the QCA7000 should be operated with a
>> maximum SPI clock frequency of 12 MHz. Even if it appears to work
>> at a higher frequency, we should not take any risks here. A short
>> performance test showed no measurable loss of speed.
> Should this one have a Fixes tag?
i'm undecided about that. On the one hand the the former clock
frequencies are wrong, on the other hand we didn't experience any issues
with these frequencies.
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^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH 0/2] ARM: dts: imx6ull-tarragon: Minor changes
2024-04-16 19:06 [PATCH 0/2] ARM: dts: imx6ull-tarragon: Minor changes Stefan Wahren
2024-04-16 19:06 ` [PATCH 1/2] ARM: dts: imx6ull-tarragon: fix USB over-current polarity Stefan Wahren
2024-04-16 19:06 ` [PATCH 2/2] ARM: dts: imx6ull-tarragon: Reduce SPI clock for QCA7000 Stefan Wahren
@ 2024-04-25 6:21 ` Shawn Guo
2 siblings, 0 replies; 6+ messages in thread
From: Shawn Guo @ 2024-04-25 6:21 UTC (permalink / raw)
To: Stefan Wahren
Cc: Rob Herring, Krzysztof Kozlowski, Conor Dooley, Shawn Guo,
Sascha Hauer, Fabio Estevam, kernel, imx, devicetree,
linux-arm-kernel
On Tue, Apr 16, 2024 at 09:06:57PM +0200, Stefan Wahren wrote:
> This small series contains 2 changes for the chargebyte Tarragon
> boards.
>
> Michael Heimpold (1):
> ARM: dts: imx6ull-tarragon: fix USB over-current polarity
>
> Stefan Wahren (1):
> ARM: dts: imx6ull-tarragon: Reduce SPI clock for QCA7000
Applied both, thanks!
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^ permalink raw reply [flat|nested] 6+ messages in thread