From: Hans de Goede <hansg@kernel.org>
To: Bingbu Cao <bingbu.cao@intel.com>,
Sakari Ailus <sakari.ailus@linux.intel.com>
Cc: Hans de Goede <hansg@kernel.org>,
linux-media@vger.kernel.org, stable@vger.kernel.org
Subject: [PATCH 02/25] media: i2c: ov01a10: Fix reported pixel-rate value
Date: Tue, 14 Oct 2025 19:40:10 +0200 [thread overview]
Message-ID: <20251014174033.20534-3-hansg@kernel.org> (raw)
In-Reply-To: <20251014174033.20534-1-hansg@kernel.org>
CSI lanes are double-clocked so with a single lane at 400MHZ the resulting
pixel-rate for 10-bits pixels is 400 MHz * 2 / 10 = 80 MHz, not 40 MHz.
This also matches with the observed frame-rate of 60 fps with the default
vblank setting: 80000000 / (1488 * 896) = 60.
Fixes: 0827b58dabff ("media: i2c: add ov01a10 image sensor driver")
Cc: stable@vger.kernel.org
Signed-off-by: Hans de Goede <hansg@kernel.org>
---
drivers/media/i2c/ov01a10.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/media/i2c/ov01a10.c b/drivers/media/i2c/ov01a10.c
index e5df01f97978..0b1a1ecfffd0 100644
--- a/drivers/media/i2c/ov01a10.c
+++ b/drivers/media/i2c/ov01a10.c
@@ -16,7 +16,7 @@
#include <media/v4l2-fwnode.h>
#define OV01A10_LINK_FREQ_400MHZ 400000000ULL
-#define OV01A10_SCLK 40000000LL
+#define OV01A10_SCLK 80000000LL
#define OV01A10_DATA_LANES 1
#define OV01A10_REG_CHIP_ID 0x300a
--
2.51.0
next prev parent reply other threads:[~2025-10-14 17:40 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20251014174033.20534-1-hansg@kernel.org>
2025-10-14 17:40 ` [PATCH 01/25] media: i2c: ov01a10: Fix the horizontal flip control Hans de Goede
2025-10-27 19:00 ` Mehdi Djait
2025-10-14 17:40 ` Hans de Goede [this message]
2025-10-27 19:03 ` [PATCH 02/25] media: i2c: ov01a10: Fix reported pixel-rate value Mehdi Djait
2025-10-14 17:40 ` [PATCH 03/25] media: i2c: ov01a10: Fix gain range Hans de Goede
2025-10-27 19:14 ` Mehdi Djait
2025-10-14 17:40 ` [PATCH 04/25] media: i2c: ov01a10: Add missing v4l2_subdev_cleanup() calls Hans de Goede
2025-10-15 2:37 ` Bingbu Cao
2025-10-15 2:46 ` Bingbu Cao
2025-10-28 11:24 ` Mehdi Djait
2025-10-14 17:40 ` [PATCH 05/25] media: i2c: ov01a10: Fix passing stream instead of pad to v4l2_subdev_state_get_format() Hans de Goede
2025-10-28 11:40 ` Mehdi Djait
2025-10-14 17:40 ` [PATCH 06/25] media: i2c: ov01a10: Fix test-pattern disabling Hans de Goede
2025-10-15 2:34 ` Bingbu Cao
2025-10-28 12:08 ` Mehdi Djait
2025-10-28 14:38 ` Hans de Goede
2025-10-28 15:38 ` Mehdi Djait
2025-10-28 15:52 ` Hans de Goede
2025-10-29 17:44 ` Mehdi Djait
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