linux-kernel - Re: [PATCH 5/5] i2c: geni: sdm845: dont perform DMA for the oneplus6

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Message-ID: <bf04cb91-5b2a-c30e-ac85-0437b2aaad23@codeaurora.org>
Date:   Fri, 9 Oct 2020 10:56:15 +0530
From:   Akash Asthana <akashast@...eaurora.org>
To:     Caleb Connolly <caleb@...nolly.tech>,
        linux-arm-msm@...r.kernel.org, Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Mukesh Savaliya <msavaliy@...eaurora.org>
Cc:     ~postmarketos/upstreaming@...ts.sr.ht, linux-i2c@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 5/5] i2c: geni: sdm845: dont perform DMA for the oneplus6

On 10/7/2020 11:19 PM, Caleb Connolly wrote:
> The OnePlus 6/T has the same issues as the c630 causing a crash when DMA
> is used for i2c, so disable it.
>
> https://patchwork.kernel.org/patch/11133827

Reviewed-by: Akash Asthana <akashast@...eaurora.org>

> Signed-off-by: Caleb Connolly <caleb@...nolly.tech>
> ---
>   drivers/i2c/busses/i2c-qcom-geni.c | 6 ++++--
>   1 file changed, 4 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/i2c/busses/i2c-qcom-geni.c b/drivers/i2c/busses/i2c-qcom-geni.c
> index dead5db3315a..50a0674a6553 100644
> --- a/drivers/i2c/busses/i2c-qcom-geni.c
> +++ b/drivers/i2c/busses/i2c-qcom-geni.c
> @@ -358,7 +358,8 @@ static int geni_i2c_rx_one_msg(struct geni_i2c_dev *gi2c, struct i2c_msg *msg,
>   	struct geni_se *se = &gi2c->se;
>   	size_t len = msg->len;
>   
> -	if (!of_machine_is_compatible("lenovo,yoga-c630"))
> +	if (!of_machine_is_compatible("lenovo,yoga-c630") &&
> +	    !of_machine_is_compatible("oneplus,oneplus6"))
>   		dma_buf = i2c_get_dma_safe_msg_buf(msg, 32);
>   
>   	if (dma_buf)
> @@ -400,7 +401,8 @@ static int geni_i2c_tx_one_msg(struct geni_i2c_dev *gi2c, struct i2c_msg *msg,
>   	struct geni_se *se = &gi2c->se;
>   	size_t len = msg->len;
>   
> -	if (!of_machine_is_compatible("lenovo,yoga-c630"))
> +	if (!of_machine_is_compatible("lenovo,yoga-c630") &&
> +	    !of_machine_is_compatible("oneplus,oneplus6"))
>   		dma_buf = i2c_get_dma_safe_msg_buf(msg, 32);
>   
>   	if (dma_buf)

-- 
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