linux-kernel - Re: [PATCH 3/5] arm64: dts: ti: k3-am62a7-sk: Drop i2c-1 to 100Khz

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <ee725687-1b1a-3fdb-8aee-5ca49f59a874@ti.com>
Date:   Wed, 2 Aug 2023 13:09:12 +0530
From:   Devarsh Thakkar <devarsht@...com>
To:     Jai Luthra <j-luthra@...com>, Nishanth Menon <nm@...com>,
        Vignesh Raghavendra <vigneshr@...com>,
        Tero Kristo <kristo@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>
CC:     <linux-arm-kernel@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 3/5] arm64: dts: ti: k3-am62a7-sk: Drop i2c-1 to 100Khz



On 31/07/23 18:14, Jai Luthra wrote:
> The TLV320AIC3106 audio codec is interfaced on the i2c-1 bus. With the
> default rate of 400Khz the i2c register writes fail to sync:
> 
> [   36.026387] tlv320aic3x 1-001b: Unable to sync registers 0x16-0x16. -110
> [   38.101130] omap_i2c 20010000.i2c: controller timed out
> 
> Dropping the rate to 100Khz fixes the issue.
> 
> Signed-off-by: Jai Luthra <j-luthra@...com>

Reviewed-by: Devarsh Thakkar <devarsht@...com>

> ---
>  arch/arm64/boot/dts/ti/k3-am62a7-sk.dts | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts b/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
> index 9d34b8fe4ecb..752c2f640f63 100644
> --- a/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
> +++ b/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
> @@ -338,7 +338,7 @@ &main_i2c1 {
>  	status = "okay";
>  	pinctrl-names = "default";
>  	pinctrl-0 = <&main_i2c1_pins_default>;
> -	clock-frequency = <400000>;
> +	clock-frequency = <100000>;
>  
>  	exp1: gpio@22 {
>  		compatible = "ti,tca6424";