linux-kernel - [PATCH v1] media: platform: synopsys: hdmirx: Fix compilation on 32bit arches

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Message-ID: <20250307092113.646831-1-dmitry.osipenko@collabora.com>
Date: Fri,  7 Mar 2025 12:21:13 +0300
From: Dmitry Osipenko <dmitry.osipenko@...labora.com>
To: Shreeya Patel <shreeya.patel@...labora.com>,
	Heiko Stuebner <heiko@...ech.de>,
	Mauro Carvalho Chehab <mchehab@...nel.org>,
	Hans Verkuil <hverkuil@...all.nl>,
	jose.abreu@...opsys.com,
	nelson.costa@...opsys.com,
	shawn.wen@...k-chips.com,
	nicolas.dufresne@...labora.com,
	Sebastian Reichel <sebastian.reichel@...labora.com>
Cc: kernel@...labora.com,
	linux-media@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-rockchip@...ts.infradead.org,
	Tim Surber <me@...surber.de>
Subject: [PATCH v1] media: platform: synopsys: hdmirx: Fix compilation on 32bit arches

The pixelclock is specified as 64bit integer and for this driver it
won't be above 600MHz. Fix the 64bit division of the pixclock for 32bit
kernel builds.

Reported-by: kernel test robot <lkp@...el.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202503070743.WnRxStlk-lkp@intel.com/
Signed-off-by: Dmitry Osipenko <dmitry.osipenko@...labora.com>
---
 drivers/media/platform/synopsys/hdmirx/snps_hdmirx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/platform/synopsys/hdmirx/snps_hdmirx.c b/drivers/media/platform/synopsys/hdmirx/snps_hdmirx.c
index 4d42da7255f3..7e342bbde967 100644
--- a/drivers/media/platform/synopsys/hdmirx/snps_hdmirx.c
+++ b/drivers/media/platform/synopsys/hdmirx/snps_hdmirx.c
@@ -291,7 +291,7 @@ static void hdmirx_get_timings(struct snps_hdmirx_dev *hdmirx_dev,
 	hfp = htotal - hact - hs - hbp;
 	vfp = vtotal - vact - vs - vbp;
 
-	fps = (bt->pixelclock + (htotal * vtotal) / 2) / (htotal * vtotal);
+	fps = ((u32)bt->pixelclock + (htotal * vtotal) / 2) / (htotal * vtotal);
 	bt->width = hact;
 	bt->height = vact;
 	bt->hfrontporch = hfp;
-- 
2.48.1