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(60-250-196-139.hinet-ip.hinet.net. [60.250.196.139]) by smtp.gmail.com with ESMTPSA id 41be03b00d2f7-aee7dee0ba3sm11433768a12.68.2025.03.05.00.45.25 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 05 Mar 2025 00:45:26 -0800 (PST) From: Michael Chang To: kwliu@nuvoton.com, kflin@nuvoton.com, mchehab@kernel.org, zhang971090220@gmail.com Cc: linux-media@vger.kernel.org, openbmc@lists.ozlabs.org, linux-kernel@vger.kernel.org Subject: [PATCH] media: nuvoton: npcm-video: Prevent returning unsupported resolutions Date: Wed, 5 Mar 2025 16:45:17 +0800 Message-Id: <20250305084517.1301054-1-zhang971090220@gmail.com> X-Mailer: git-send-email 2.34.1 Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 To restrict the returned resolution due to Nuvoton SoC hardware limitations. Signed-off-by: Michael Chang --- drivers/media/platform/nuvoton/npcm-video.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/media/platform/nuvoton/npcm-video.c b/drivers/media/platform/nuvoton/npcm-video.c index 234fdec04f74..8d6d51a674a3 100644 --- a/drivers/media/platform/nuvoton/npcm-video.c +++ b/drivers/media/platform/nuvoton/npcm-video.c @@ -578,7 +578,7 @@ static unsigned int npcm_video_hres(struct npcm_video *video) regmap_read(gfxi, HVCNTL, &hvcntl); apb_hor_res = (((hvcnth & HVCNTH_MASK) << 8) + (hvcntl & HVCNTL_MASK) + 1); - return apb_hor_res; + return (apb_hor_res > MAX_WIDTH) ? MAX_WIDTH : apb_hor_res; } static unsigned int npcm_video_vres(struct npcm_video *video) @@ -591,7 +591,7 @@ static unsigned int npcm_video_vres(struct npcm_video *video) apb_ver_res = (((vvcnth & VVCNTH_MASK) << 8) + (vvcntl & VVCNTL_MASK)); - return apb_ver_res; + return (apb_ver_res > MAX_HEIGHT) ? MAX_HEIGHT : apb_ver_res; } static int npcm_video_capres(struct npcm_video *video, unsigned int hor_res,