linux-kernel - Re: [PATCH V1 03/10] dt-bindings: memory: Add Tegra234 PCIe memory

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Message-ID: <4e2bec9b-4759-b699-fa7b-974f5f43da9d@canonical.com>
Date:   Sun, 6 Feb 2022 12:33:27 +0100
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>
To:     Vidya Sagar <vidyas@...dia.com>, bhelgaas@...gle.com,
        lorenzo.pieralisi@....com, robh+dt@...nel.org,
        thierry.reding@...il.com, jonathanh@...dia.com
Cc:     kishon@...com, vkoul@...nel.org, kw@...ux.com,
        p.zabel@...gutronix.de, mperttunen@...dia.com,
        linux-pci@...r.kernel.org, devicetree@...r.kernel.org,
        linux-tegra@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-phy@...ts.infradead.org, kthota@...dia.com,
        mmaddireddy@...dia.com, sagar.tv@...il.com
Subject: Re: [PATCH V1 03/10] dt-bindings: memory: Add Tegra234 PCIe memory

On 05/02/2022 17:21, Vidya Sagar wrote:
> Add the memory client and stream ID definitions for the PCIe hardware
> found on Tegra234 SoCs.

I could not find dependencies or merging strategy in cover letter.
Please always describe it, so I don't have to go through all the patches
to figure this out.

> 
> Signed-off-by: Vidya Sagar <vidyas@...dia.com>
> ---
>  include/dt-bindings/memory/tegra234-mc.h | 64 ++++++++++++++++++++++++
>  1 file changed, 64 insertions(+)
> 
> diff --git a/include/dt-bindings/memory/tegra234-mc.h b/include/dt-bindings/memory/tegra234-mc.h
> index 2662f70c15c6..60017684858a 100644
> --- a/include/dt-bindings/memory/tegra234-mc.h
> +++ b/include/dt-bindings/memory/tegra234-mc.h
> @@ -7,15 +7,53 @@
>  #define TEGRA234_SID_INVALID		0x00
>  #define TEGRA234_SID_PASSTHROUGH	0x7f
>  
> +/* NISO0 stream IDs */
> +#define TEGRA234_SID_PCIE0	0x12U
> +#define TEGRA234_SID_PCIE4	0x13U
> +#define TEGRA234_SID_PCIE5	0x14U
> +#define TEGRA234_SID_PCIE6	0x15U
> +#define TEGRA234_SID_PCIE9	0x1FU
>  
>  /* NISO1 stream IDs */
>  #define TEGRA234_SID_SDMMC4	0x02
> +#define TEGRA234_SID_PCIE1	0x5U
> +#define TEGRA234_SID_PCIE2	0x6U
> +#define TEGRA234_SID_PCIE3	0x7U
> +#define TEGRA234_SID_PCIE7	0x8U
> +#define TEGRA234_SID_PCIE8	0x9U
> +#define TEGRA234_SID_PCIE10	0xBU

I don't see usage of these...

>  #define TEGRA234_SID_BPMP	0x10
>  
>  /*
>   * memory client IDs
>   */
>  
> +/* PCIE6 read clients */
> +#define TEGRA234_MEMORY_CLIENT_PCIE6AR 0x28

I see you use them in DTS but not in mc driver. Don't you miss anything
here?

> +/* PCIE6 write clients */
> +#define TEGRA234_MEMORY_CLIENT_PCIE6AW 0x29
> +/* PCIE7 read clients */
> +#define TEGRA234_MEMORY_

Best regards,
Krzysztof