linux-kernel - Re: [PATCH 5/6] media: qcom: camss: Add sc8280xp support

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Date:   Thu, 2 Nov 2023 14:35:18 +0100
From:   Konrad Dybcio <konrad.dybcio@...aro.org>
To:     Bryan O'Donoghue <bryan.odonoghue@...aro.org>,
        hverkuil-cisco@...all.nl, laurent.pinchart@...asonboard.com,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Robert Foss <rfoss@...nel.org>,
        Todor Tomov <todor.too@...il.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>, vincent.knecht@...loo.org,
        matti.lehtimaki@...il.com, grosikop@...cinc.com
Cc:     linux-arm-msm@...r.kernel.org, linux-media@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 5/6] media: qcom: camss: Add sc8280xp support



On 02/11/2023 12:41, Bryan O'Donoghue wrote:
> Add in functional logic throughout the code to support the sc8280xp.
> 
> Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@...aro.org>
> ---
>   .../platform/qcom/camss/camss-csiphy-3ph-1-0.c     | 23 +++++++++++++++++---
>   drivers/media/platform/qcom/camss/camss-csiphy.c   |  1 +
>   drivers/media/platform/qcom/camss/camss-vfe.c      | 25 +++++++++++++++++-----
>   drivers/media/platform/qcom/camss/camss-video.c    |  1 +
>   4 files changed, 42 insertions(+), 8 deletions(-)
> 
> diff --git a/drivers/media/platform/qcom/camss/camss-csiphy-3ph-1-0.c b/drivers/media/platform/qcom/camss/camss-csiphy-3ph-1-0.c
> index 2eb3531ffd00b..2810d0fa06c13 100644
> --- a/drivers/media/platform/qcom/camss/camss-csiphy-3ph-1-0.c
> +++ b/drivers/media/platform/qcom/camss/camss-csiphy-3ph-1-0.c
> @@ -513,6 +513,10 @@ static void csiphy_gen2_config_lanes(struct csiphy_device *csiphy,
>   		r = &lane_regs_sm8250[0][0];
>   		array_size = ARRAY_SIZE(lane_regs_sm8250[0]);
>   		break;
> +	case CAMSS_8280XP:
> +		r = &lane_regs_sc8280xp[0][0];
> +		array_size = ARRAY_SIZE(lane_regs_sc8280xp[0]);
> +		break;
>   	default:
>   		WARN(1, "unknown cspi version\n");
>   		return;
> @@ -548,13 +552,26 @@ static u8 csiphy_get_lane_mask(struct csiphy_lanes_cfg *lane_cfg)
>   	return lane_mask;
>   }
>   
> +static bool csiphy_is_gen2(u32 version)
> +{
> +	bool ret = false;
delete

> +
> +	switch (version) {
> +	case CAMSS_845:
> +	case CAMSS_8250:
> +	case CAMSS_8280XP:
> +		ret = true; > +		break;
return true

> +	}
> +
> +	return ret;
return false

> +}
> +
>   static void csiphy_lanes_enable(struct csiphy_device *csiphy,
>   				struct csiphy_config *cfg,
>   				s64 link_freq, u8 lane_mask)
>   {
>   	struct csiphy_lanes_cfg *c = &cfg->csi2->lane_cfg;
> -	bool is_gen2 = (csiphy->camss->res->version == CAMSS_845 ||
> -			csiphy->camss->res->version == CAMSS_8250);
>   	u8 settle_cnt;
>   	u8 val;
>   	int i;
> @@ -576,7 +593,7 @@ static void csiphy_lanes_enable(struct csiphy_device *csiphy,
>   	val = 0x00;
>   	writel_relaxed(val, csiphy->base + CSIPHY_3PH_CMN_CSI_COMMON_CTRLn(0));
>   
> -	if (is_gen2)
> +	if (csiphy_is_gen2(csiphy->camss->res->version))
>   		csiphy_gen2_config_lanes(csiphy, settle_cnt);
>   	else
>   		csiphy_gen1_config_lanes(csiphy, cfg, settle_cnt);
> diff --git a/drivers/media/platform/qcom/camss/camss-csiphy.c b/drivers/media/platform/qcom/camss/camss-csiphy.c
> index edd573606a6ae..8241acf789865 100644
> --- a/drivers/media/platform/qcom/camss/camss-csiphy.c
> +++ b/drivers/media/platform/qcom/camss/camss-csiphy.c
> @@ -579,6 +579,7 @@ int msm_csiphy_subdev_init(struct camss *camss,
>   		break;
>   	case CAMSS_845:
>   	case CAMSS_8250:
> +	case CAMSS_8280XP:
>   		csiphy->formats = csiphy_formats_sdm845;
>   		csiphy->nformats = ARRAY_SIZE(csiphy_formats_sdm845);
>   		break;
> diff --git a/drivers/media/platform/qcom/camss/camss-vfe.c b/drivers/media/platform/qcom/camss/camss-vfe.c
> index 123e5ead7602d..21812d40716f4 100644
> --- a/drivers/media/platform/qcom/camss/camss-vfe.c
> +++ b/drivers/media/platform/qcom/camss/camss-vfe.c
> @@ -225,6 +225,7 @@ static u32 vfe_src_pad_code(struct vfe_line *line, u32 sink_code,
>   	case CAMSS_660:
>   	case CAMSS_845:
>   	case CAMSS_8250:
> +	case CAMSS_8280XP:
>   		switch (sink_code) {
>   		case MEDIA_BUS_FMT_YUYV8_1X16:
>   		{
> @@ -1522,6 +1523,7 @@ int msm_vfe_subdev_init(struct camss *camss, struct vfe_device *vfe,
>   			break;
>   		case CAMSS_845:
>   		case CAMSS_8250:
> +		case CAMSS_8280XP:
>   			l->formats = formats_rdi_845;
>   			l->nformats = ARRAY_SIZE(formats_rdi_845);
>   			break;
> @@ -1600,6 +1602,23 @@ static const struct media_entity_operations vfe_media_ops = {
>   	.link_validate = v4l2_subdev_link_validate,
>   };
>   
> +static int vfe_bpl_align(struct vfe_device *vfe)
> +{
> +	int ret = 8;
return the value directly

> +
> +	switch (vfe->camss->res->version) {
> +	case CAMSS_845:
> +	case CAMSS_8250:
> +	case CAMSS_8280XP:
> +		ret = 16;
> +		break;
> +	default:
> +		break;
> +	}
> +
> +	return ret;
> +}
Konrad