linux-kernel - Re: [v1 3/3] drm/msm/dsi: Add DSI support for SC7280

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Message-ID: <03dd0cb1-433c-2bb8-6859-39e7c679dee2@linaro.org>
Date:   Mon, 31 May 2021 20:57:34 +0300
From:   Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To:     Rajeev Nandan <rajeevny@...eaurora.org>,
        dri-devel@...ts.freedesktop.org, linux-arm-msm@...r.kernel.org,
        freedreno@...ts.freedesktop.org, devicetree@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org, sean@...rly.run, robdclark@...il.com,
        robh+dt@...nel.org, abhinavk@...eaurora.org,
        kalyan_t@...eaurora.org, mkrishn@...eaurora.org, jonathan@...ek.ca
Subject: Re: [v1 3/3] drm/msm/dsi: Add DSI support for SC7280

On 31/05/2021 16:33, Rajeev Nandan wrote:
> Add support for v2.5.0 DSI block in the SC7280 SoC.
> 
> Signed-off-by: Rajeev Nandan <rajeevny@...eaurora.org>

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>


> ---
>   drivers/gpu/drm/msm/dsi/dsi_cfg.c | 20 ++++++++++++++++++++
>   drivers/gpu/drm/msm/dsi/dsi_cfg.h |  1 +
>   2 files changed, 21 insertions(+)
> 
> diff --git a/drivers/gpu/drm/msm/dsi/dsi_cfg.c b/drivers/gpu/drm/msm/dsi/dsi_cfg.c
> index f3f1c03..d76a680 100644
> --- a/drivers/gpu/drm/msm/dsi/dsi_cfg.c
> +++ b/drivers/gpu/drm/msm/dsi/dsi_cfg.c
> @@ -200,6 +200,24 @@ static const struct msm_dsi_config sc7180_dsi_cfg = {
>   	.num_dsi = 1,
>   };
>   
> +static const char * const dsi_sc7280_bus_clk_names[] = {
> +	"iface", "bus",
> +};
> +
> +static const struct msm_dsi_config sc7280_dsi_cfg = {
> +	.io_offset = DSI_6G_REG_SHIFT,
> +	.reg_cfg = {
> +		.num = 1,
> +		.regs = {
> +			{"vdda", 8350, 0 },	/* 1.2 V */
> +		},
> +	},
> +	.bus_clk_names = dsi_sc7280_bus_clk_names,
> +	.num_bus_clks = ARRAY_SIZE(dsi_sc7280_bus_clk_names),
> +	.io_start = { 0xae94000 },
> +	.num_dsi = 1,
> +};
> +
>   static const struct msm_dsi_host_cfg_ops msm_dsi_v2_host_ops = {
>   	.link_clk_set_rate = dsi_link_clk_set_rate_v2,
>   	.link_clk_enable = dsi_link_clk_enable_v2,
> @@ -267,6 +285,8 @@ static const struct msm_dsi_cfg_handler dsi_cfg_handlers[] = {
>   		&sdm845_dsi_cfg, &msm_dsi_6g_v2_host_ops},
>   	{MSM_DSI_VER_MAJOR_6G, MSM_DSI_6G_VER_MINOR_V2_4_1,
>   		&sc7180_dsi_cfg, &msm_dsi_6g_v2_host_ops},
> +	{MSM_DSI_VER_MAJOR_6G, MSM_DSI_6G_VER_MINOR_V2_5_0,
> +		&sc7280_dsi_cfg, &msm_dsi_6g_v2_host_ops},
>   };
>   
>   const struct msm_dsi_cfg_handler *msm_dsi_cfg_get(u32 major, u32 minor)
> diff --git a/drivers/gpu/drm/msm/dsi/dsi_cfg.h b/drivers/gpu/drm/msm/dsi/dsi_cfg.h
> index ade9b60..b2c4d5e 100644
> --- a/drivers/gpu/drm/msm/dsi/dsi_cfg.h
> +++ b/drivers/gpu/drm/msm/dsi/dsi_cfg.h
> @@ -24,6 +24,7 @@
>   #define MSM_DSI_6G_VER_MINOR_V2_3_0	0x20030000
>   #define MSM_DSI_6G_VER_MINOR_V2_4_0	0x20040000
>   #define MSM_DSI_6G_VER_MINOR_V2_4_1	0x20040001
> +#define MSM_DSI_6G_VER_MINOR_V2_5_0	0x20050000
>   
>   #define MSM_DSI_V2_VER_MINOR_8064	0x0
>   
> 


-- 
With best wishes
Dmitry