[PATCH] ARM: i.MX: dts: imx93-tqma9352-mba93xxla: add eeprom aliases

[PATCH] ARM: i.MX: dts: imx93-tqma9352-mba93xxla: add eeprom aliases

[Sascha Hauer]

eeprom0 has an alias in the upstream device tree whereas the other
EEPROMs have not. Add aliases for the other EEPROMs. Without it the
other devices will also try to register themselves as eeprom0 which
fails with -EEXIST.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
 arch/arm/dts/imx93-tqma9352-mba93xxla.dts | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/arch/arm/dts/imx93-tqma9352-mba93xxla.dts b/arch/arm/dts/imx93-tqma9352-mba93xxla.dts
index d1d68a55e1..4b1624cdaa 100644
--- a/arch/arm/dts/imx93-tqma9352-mba93xxla.dts
+++ b/arch/arm/dts/imx93-tqma9352-mba93xxla.dts
@@ -3,3 +3,10 @@
 #include <arm64/freescale/imx93-tqma9352-mba93xxla.dts>
 #include "imx93.dtsi"
 #include "imx93-tqma93xx.dtsi"
+
+/ {
+	aliases {
+		eeprom1 = &eeprom1;
+		eeprom2 = &eeprom2;
+	};
+};
-- 
2.47.3

Re: [PATCH] ARM: i.MX: dts: imx93-tqma9352-mba93xxla: add eeprom aliases

[Ahmad Fatoum]

Hi,

On 12/5/25 3:31 PM, Sascha Hauer wrote:
> eeprom0 has an alias in the upstream device tree whereas the other
> EEPROMs have not. Add aliases for the other EEPROMs. Without it the
> other devices will also try to register themselves as eeprom0 which
> fails with -EEXIST.
> 
> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Should we fix the driver to use dynamic IDs in absence of EEPROMs?

We could use of_alias_get_highest_id() to get a start ID.

Cheers,
Ahmad

> ---
>  arch/arm/dts/imx93-tqma9352-mba93xxla.dts | 7 +++++++
>  1 file changed, 7 insertions(+)
> 
> diff --git a/arch/arm/dts/imx93-tqma9352-mba93xxla.dts b/arch/arm/dts/imx93-tqma9352-mba93xxla.dts
> index d1d68a55e1..4b1624cdaa 100644
> --- a/arch/arm/dts/imx93-tqma9352-mba93xxla.dts
> +++ b/arch/arm/dts/imx93-tqma9352-mba93xxla.dts
> @@ -3,3 +3,10 @@
>  #include <arm64/freescale/imx93-tqma9352-mba93xxla.dts>
>  #include "imx93.dtsi"
>  #include "imx93-tqma93xx.dtsi"
> +
> +/ {
> +	aliases {
> +		eeprom1 = &eeprom1;
> +		eeprom2 = &eeprom2;
> +	};
> +};

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Re: [PATCH] ARM: i.MX: dts: imx93-tqma9352-mba93xxla: add eeprom aliases

[Sascha Hauer]

On Fri, Dec 05, 2025 at 03:33:29PM +0100, Ahmad Fatoum wrote:
> Hi,
> 
> On 12/5/25 3:31 PM, Sascha Hauer wrote:
> > eeprom0 has an alias in the upstream device tree whereas the other
> > EEPROMs have not. Add aliases for the other EEPROMs. Without it the
> > other devices will also try to register themselves as eeprom0 which
> > fails with -EEXIST.
> > 
> > Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
> 
> Should we fix the driver to use dynamic IDs in absence of EEPROMs?

Yes, but I needed you to motivate me to jump into this rabbit hole ;)

Sascha

-- 
Pengutronix e.K.                           |                             |
Steuerwalder Str. 21                       | http://www.pengutronix.de/  |
31137 Hildesheim, Germany                  | Phone: +49-5121-206917-0    |
Amtsgericht Hildesheim, HRA 2686           | Fax:   +49-5121-206917-5555 |