linux-kernel - Re: [PATCH 3/3] dmaengine: qcom: gpi: Add support for ee

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 for Android: free password hash cracker in your pocket

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

Message-ID: <YlXvpdmBRVaCVBRo@ripper>
Date:   Tue, 12 Apr 2022 14:31:17 -0700
From:   Bjorn Andersson <bjorn.andersson@...aro.org>
To:     Vinod Koul <vkoul@...nel.org>
Cc:     linux-arm-msm@...r.kernel.org, dmaengine@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/3] dmaengine: qcom: gpi: Add support for ee_offset

On Wed 06 Apr 06:25 PDT 2022, Vinod Koul wrote:

> Controller on newer SoCs like SM8450 have registers at at offset. Add
> ee_offset to driver_data and add this compatible for the driver.
> 
> Signed-off-by: Vinod Koul <vkoul@...nel.org>

Reviewed-by: Bjorn Andersson <bjorn.andersson@...aro.org>
Tested-by: Bjorn Andersson <bjorn.andersson@...aro.org>

Regards,
Bjorn

> ---
>  drivers/dma/qcom/gpi.c | 11 ++++++++---
>  1 file changed, 8 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/dma/qcom/gpi.c b/drivers/dma/qcom/gpi.c
> index 3429ceccd13b..0b402d923eae 100644
> --- a/drivers/dma/qcom/gpi.c
> +++ b/drivers/dma/qcom/gpi.c
> @@ -2152,6 +2152,7 @@ static int gpi_probe(struct platform_device *pdev)
>  {
>  	struct gpi_dev *gpi_dev;
>  	unsigned int i;
> +	u32 ee_offset;
>  	int ret;
>  
>  	gpi_dev = devm_kzalloc(&pdev->dev, sizeof(*gpi_dev), GFP_KERNEL);
> @@ -2179,6 +2180,9 @@ static int gpi_probe(struct platform_device *pdev)
>  		return ret;
>  	}
>  
> +	ee_offset = (uintptr_t)device_get_match_data(gpi_dev->dev);
> +	gpi_dev->ee_base = gpi_dev->ee_base - ee_offset;
> +
>  	gpi_dev->ev_factor = EV_FACTOR;
>  
>  	ret = dma_set_mask(gpi_dev->dev, DMA_BIT_MASK(64));
> @@ -2282,9 +2286,10 @@ static int gpi_probe(struct platform_device *pdev)
>  }
>  
>  static const struct of_device_id gpi_of_match[] = {
> -	{ .compatible = "qcom,sdm845-gpi-dma" },
> -	{ .compatible = "qcom,sm8150-gpi-dma" },
> -	{ .compatible = "qcom,sm8250-gpi-dma" },
> +	{ .compatible = "qcom,sdm845-gpi-dma", .data = (void *)0x0 },
> +	{ .compatible = "qcom,sm8150-gpi-dma", .data = (void *)0x0 },
> +	{ .compatible = "qcom,sm8250-gpi-dma", .data = (void *)0x0 },
> +	{ .compatible = "qcom,sm8450-gpi-dma", .data = (void *)0x10000 },
>  	{ },
>  };
>  MODULE_DEVICE_TABLE(of, gpi_of_match);
> -- 
> 2.34.1
>