linux-kernel - Re: [PATCH v1 10/19] staging: media: tegra-video: tegra20: set correct maximum width and height

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Message-ID: <5434824.LvFx2qVVIh@senjougahara>
Date: Tue, 02 Sep 2025 09:51:41 +0900
From: Mikko Perttunen <mperttunen@...dia.com>
To: Thierry Reding <thierry.reding@...il.com>,
 Thierry Reding <treding@...dia.com>, Jonathan Hunter <jonathanh@...dia.com>,
 Sowjanya Komatineni <skomatineni@...dia.com>,
 Luca Ceresoli <luca.ceresoli@...tlin.com>, David Airlie <airlied@...il.com>,
 Simona Vetter <simona@...ll.ch>,
 Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
 Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>,
 Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
 Conor Dooley <conor+dt@...nel.org>,
 Peter De Schrijver <pdeschrijver@...dia.com>,
 Prashant Gaikwad <pgaikwad@...dia.com>,
 Michael Turquette <mturquette@...libre.com>, Stephen Boyd <sboyd@...nel.org>,
 Mauro Carvalho Chehab <mchehab@...nel.org>,
 Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
 Svyatoslav Ryhel <clamor95@...il.com>, Dmitry Osipenko <digetx@...il.com>,
 Charan Pedumuru <charan.pedumuru@...il.com>,
 Svyatoslav Ryhel <clamor95@...il.com>
Cc: linux-media@...r.kernel.org, linux-tegra@...r.kernel.org,
 dri-devel@...ts.freedesktop.org, devicetree@...r.kernel.org,
 linux-kernel@...r.kernel.org, linux-clk@...r.kernel.org,
 linux-staging@...ts.linux.dev
Subject:
 Re: [PATCH v1 10/19] staging: media: tegra-video: tegra20: set correct
 maximum width and height

On Tuesday, August 19, 2025 9:16 PM Svyatoslav Ryhel wrote:
> Maximum width and height for Tegra20 and Tegra30 is determined by
> respective register field, rounded down to factor of 2, which is 8191U
> rounded down to 8190U.
> 
> Signed-off-by: Svyatoslav Ryhel <clamor95@...il.com>
> ---
>  drivers/staging/media/tegra-video/tegra20.c | 5 ++---
>  1 file changed, 2 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/staging/media/tegra-video/tegra20.c
> b/drivers/staging/media/tegra-video/tegra20.c index
> 7b8f8f810b35..3e2d746638b6 100644
> --- a/drivers/staging/media/tegra-video/tegra20.c
> +++ b/drivers/staging/media/tegra-video/tegra20.c
> @@ -23,11 +23,10 @@
> 
>  #define TEGRA_VI_SYNCPT_WAIT_TIMEOUT			
msecs_to_jiffies(200)
> 
> -/* This are just good-sense numbers. The actual min/max is not documented.
> */ #define TEGRA20_MIN_WIDTH	32U
> +#define TEGRA20_MAX_WIDTH	8190U
>  #define TEGRA20_MIN_HEIGHT	32U
> -#define TEGRA20_MAX_WIDTH	2048U
> -#define TEGRA20_MAX_HEIGHT	2048U
> +#define TEGRA20_MAX_HEIGHT	8190U
> 
>  /*
> --------------------------------------------------------------------------
> * Registers

Reviewed-by: Mikko Perttunen <mperttunen@...dia.com>