* [PATCH v1] riscv: dts: starfive: remove non-existent dac from jh7110
@ 2025-02-13 20:03 Conor Dooley
2025-02-19 13:36 ` Emil Renner Berthing
2025-02-19 17:39 ` Conor Dooley
0 siblings, 2 replies; 3+ messages in thread
From: Conor Dooley @ 2025-02-13 20:03 UTC (permalink / raw)
To: linux-riscv
Cc: conor, Conor Dooley, Emil Renner Berthing, Rob Herring,
Krzysztof Kozlowski, devicetree, linux-kernel
From: Conor Dooley <conor.dooley@microchip.com>
The jh7110 boards do not have a Rohm DAC on them as far as I
can tell, and they certainly do not have a dh2228fv, as this device does
not actually exist! Remove the dac nodes from the devicetrees as it is
not acceptable to pretend to have a device on a board in order to bind
the spidev driver in Linux.
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
---
CC: Emil Renner Berthing <kernel@esmil.dk>
CC: Conor Dooley <conor@kernel.org>
CC: Rob Herring <robh@kernel.org>
CC: Krzysztof Kozlowski <krzk+dt@kernel.org>
CC: linux-riscv@lists.infradead.org
CC: devicetree@vger.kernel.org
CC: linux-kernel@vger.kernel.org
---
arch/riscv/boot/dts/starfive/jh7110-common.dtsi | 6 ------
1 file changed, 6 deletions(-)
diff --git a/arch/riscv/boot/dts/starfive/jh7110-common.dtsi b/arch/riscv/boot/dts/starfive/jh7110-common.dtsi
index dd2eefc295e5..c2f70f5e2918 100644
--- a/arch/riscv/boot/dts/starfive/jh7110-common.dtsi
+++ b/arch/riscv/boot/dts/starfive/jh7110-common.dtsi
@@ -350,12 +350,6 @@ &pwm {
&spi0 {
pinctrl-names = "default";
pinctrl-0 = <&spi0_pins>;
-
- spi_dev0: spi@0 {
- compatible = "rohm,dh2228fv";
- reg = <0>;
- spi-max-frequency = <10000000>;
- };
};
&syscrg {
--
2.45.2
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^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH v1] riscv: dts: starfive: remove non-existent dac from jh7110
2025-02-13 20:03 [PATCH v1] riscv: dts: starfive: remove non-existent dac from jh7110 Conor Dooley
@ 2025-02-19 13:36 ` Emil Renner Berthing
2025-02-19 17:39 ` Conor Dooley
1 sibling, 0 replies; 3+ messages in thread
From: Emil Renner Berthing @ 2025-02-19 13:36 UTC (permalink / raw)
To: Conor Dooley, linux-riscv
Cc: Conor Dooley, Emil Renner Berthing, Rob Herring,
Krzysztof Kozlowski, devicetree, linux-kernel
Conor Dooley wrote:
> From: Conor Dooley <conor.dooley@microchip.com>
>
> The jh7110 boards do not have a Rohm DAC on them as far as I
> can tell, and they certainly do not have a dh2228fv, as this device does
> not actually exist! Remove the dac nodes from the devicetrees as it is
> not acceptable to pretend to have a device on a board in order to bind
> the spidev driver in Linux.
>
> Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Hmm.. I thought we already did this, but it must have been another board.
In any case
Reviewed-by: Emil Renner Berthing <emil.renner.berthing@canonical.com>
Thanks!
/Emil
> ---
> CC: Emil Renner Berthing <kernel@esmil.dk>
> CC: Conor Dooley <conor@kernel.org>
> CC: Rob Herring <robh@kernel.org>
> CC: Krzysztof Kozlowski <krzk+dt@kernel.org>
> CC: linux-riscv@lists.infradead.org
> CC: devicetree@vger.kernel.org
> CC: linux-kernel@vger.kernel.org
> ---
> arch/riscv/boot/dts/starfive/jh7110-common.dtsi | 6 ------
> 1 file changed, 6 deletions(-)
>
> diff --git a/arch/riscv/boot/dts/starfive/jh7110-common.dtsi b/arch/riscv/boot/dts/starfive/jh7110-common.dtsi
> index dd2eefc295e5..c2f70f5e2918 100644
> --- a/arch/riscv/boot/dts/starfive/jh7110-common.dtsi
> +++ b/arch/riscv/boot/dts/starfive/jh7110-common.dtsi
> @@ -350,12 +350,6 @@ &pwm {
> &spi0 {
> pinctrl-names = "default";
> pinctrl-0 = <&spi0_pins>;
> -
> - spi_dev0: spi@0 {
> - compatible = "rohm,dh2228fv";
> - reg = <0>;
> - spi-max-frequency = <10000000>;
> - };
> };
>
> &syscrg {
> --
> 2.45.2
>
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^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH v1] riscv: dts: starfive: remove non-existent dac from jh7110
2025-02-13 20:03 [PATCH v1] riscv: dts: starfive: remove non-existent dac from jh7110 Conor Dooley
2025-02-19 13:36 ` Emil Renner Berthing
@ 2025-02-19 17:39 ` Conor Dooley
1 sibling, 0 replies; 3+ messages in thread
From: Conor Dooley @ 2025-02-19 17:39 UTC (permalink / raw)
To: linux-riscv, Conor Dooley
Cc: Conor Dooley, Emil Renner Berthing, Rob Herring,
Krzysztof Kozlowski, devicetree, linux-kernel
From: Conor Dooley <conor.dooley@microchip.com>
On Thu, 13 Feb 2025 20:03:52 +0000, Conor Dooley wrote:
> The jh7110 boards do not have a Rohm DAC on them as far as I
> can tell, and they certainly do not have a dh2228fv, as this device does
> not actually exist! Remove the dac nodes from the devicetrees as it is
> not acceptable to pretend to have a device on a board in order to bind
> the spidev driver in Linux.
>
>
> [...]
Applied to riscv-dt-for-next, thanks!
[1/1] riscv: dts: starfive: remove non-existent dac from jh7110
https://git.kernel.org/conor/c/4bdea6e33946
Thanks,
Conor.
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2025-02-13 20:03 [PATCH v1] riscv: dts: starfive: remove non-existent dac from jh7110 Conor Dooley
2025-02-19 13:36 ` Emil Renner Berthing
2025-02-19 17:39 ` Conor Dooley
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