Re: [PATCH v13 04/12] dmaengine: qcom: bam_dma: Add pipe_lock_supported flag support

[Manivannan Sadhasivam]

On Tue, Mar 17, 2026 at 03:02:11PM +0100, Bartosz Golaszewski wrote:
> From: Bartosz Golaszewski <bartosz.golaszewski@xxxxxxxxxx>
> 
> Extend the device match data with a flag indicating whether the IP
> supports the BAM lock/unlock feature. Set it to true on BAM IP versions
> 1.4.0 and above.
> 
> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@xxxxxxxxxx>
> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxxxxxxxx>
> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@xxxxxxxxxxxxxxxx>

Acked-by: Manivannan Sadhasivam <mani@xxxxxxxxxx>

- Mani

> ---
>  drivers/dma/qcom/bam_dma.c | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/drivers/dma/qcom/bam_dma.c b/drivers/dma/qcom/bam_dma.c
> index 8f6d03f6c673b57ed13aeca6c8331c71596d077b..83491e7c2f17d8c9d12a1a055baea7e3a0a75a53 100644
> --- a/drivers/dma/qcom/bam_dma.c
> +++ b/drivers/dma/qcom/bam_dma.c
> @@ -115,6 +115,7 @@ struct reg_offset_data {
>  
>  struct bam_device_data {
>  	const struct reg_offset_data *reg_info;
> +	bool pipe_lock_supported;
>  };
>  
>  static const struct reg_offset_data bam_v1_3_reg_info[] = {
> @@ -181,6 +182,7 @@ static const struct reg_offset_data bam_v1_4_reg_info[] = {
>  
>  static const struct bam_device_data bam_v1_4_data = {
>  	.reg_info = bam_v1_4_reg_info,
> +	.pipe_lock_supported = true,
>  };
>  
>  static const struct reg_offset_data bam_v1_7_reg_info[] = {
> @@ -214,6 +216,7 @@ static const struct reg_offset_data bam_v1_7_reg_info[] = {
>  
>  static const struct bam_device_data bam_v1_7_data = {
>  	.reg_info = bam_v1_7_reg_info,
> +	.pipe_lock_supported = true,
>  };
>  
>  /* BAM CTRL */
> 
> -- 
> 2.47.3
> 

-- 
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