linux-kernel - Re: [PATCH v2 4/7] media: qcom: camss: enable csid 690 for qcs8300

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] [day] [month] [year] [list]

Message-ID: <7e65f9be-275b-4760-82d7-679ba3d7ee83@oss.qualcomm.com>
Date: Mon, 14 Jul 2025 11:35:48 +0200
From: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
To: Vikram Sharma <quic_vikramsa@...cinc.com>, rfoss@...nel.org,
        todor.too@...il.com, bryan.odonoghue@...aro.org, mchehab@...nel.org,
        robh@...nel.org, krzk+dt@...nel.org, conor+dt@...nel.org,
        andersson@...nel.org, konradybcio@...nel.org, hverkuil-cisco@...all.nl,
        cros-qcom-dts-watchers@...omium.org, catalin.marinas@....com,
        will@...nel.org
Cc: linux-arm-kernel@...ts.infradead.org, quic_svankada@...cinc.com,
        linux-media@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 4/7] media: qcom: camss: enable csid 690 for qcs8300

On 7/11/25 3:11 PM, Vikram Sharma wrote:
> The CSID in qcs8300 is version 690, it is same as csid used in
> sa8775p. csid gen3 have support for csid 690.
> 
> Signed-off-by: Vikram Sharma <quic_vikramsa@...cinc.com>
> ---
>  .../platform/qcom/camss/camss-csid-gen3.c     |   5 +-
>  drivers/media/platform/qcom/camss/camss.c     | 136 ++++++++++++++++++
>  2 files changed, 139 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/media/platform/qcom/camss/camss-csid-gen3.c b/drivers/media/platform/qcom/camss/camss-csid-gen3.c
> index f62084fb8287..581399b6a767 100644
> --- a/drivers/media/platform/qcom/camss/camss-csid-gen3.c
> +++ b/drivers/media/platform/qcom/camss/camss-csid-gen3.c
> @@ -47,8 +47,9 @@
>  #define CSID_CSI2_RX_IRQ_CLEAR		0xA4
>  #define CSID_CSI2_RX_IRQ_SET		0xA8
>  
> -#define IS_CSID_690(csid)	(csid->camss->res->version ==\
> -					CAMSS_8775P ? true : false)
> +#define IS_CSID_690(csid)	((csid->camss->res->version == CAMSS_8775P) ||\
> +				(csid->camss->res->version == CAMSS_8300) ?\
> +				true : false)

== tends to return either true or false without the use of the
ternary operator too

>  #define CSID_BUF_DONE_IRQ_STATUS	0x8C
>  #define BUF_DONE_IRQ_STATUS_RDI_OFFSET  (csid_is_lite(csid) ?\
>  						1 : (IS_CSID_690(csid) ?\
> diff --git a/drivers/media/platform/qcom/camss/camss.c b/drivers/media/platform/qcom/camss/camss.c
> index 5211367b535d..b0fd5fd307a1 100644
> --- a/drivers/media/platform/qcom/camss/camss.c
> +++ b/drivers/media/platform/qcom/camss/camss.c
> @@ -2269,6 +2269,10 @@ static const struct camss_subdev_resources csiphy_res_8550[] = {
>  	}
>  };
>  
> +static const struct resources_wrapper csid_wrapper_res_qcs8300 = {
> +	.reg = "csid_wrapper",
> +};
> +
>  static const struct resources_wrapper csid_wrapper_res_sa8775p = {
>  	.reg = "csid_wrapper",
>  };

There is no reason to duplicate this, simply point to the existing
variable

> @@ -2487,6 +2491,138 @@ static const struct resources_icc icc_res_sm8550[] = {
>  	},
>  };
>  
> +static const struct camss_subdev_resources csid_res_8300[] = {
> +	/* CSID0 */
> +	{
> +		.regulators = {},
> +		.clock = { "csid", "csiphy_rx"},
> +		.clock_rate = {
> +			{ 400000000, 400000000},
> +			{ 400000000, 400000000}

Please add a space before } across the board

Konrad