From: Sakari Ailus <sakari.ailus@linux.intel.com>
To: linux-media@vger.kernel.org
Cc: Bingbu Cao <bingbu.cao@intel.com>,
Hans de Goede <hansg@kernel.org>,
mehdi.djait@intel.com
Subject: [PATCH v2 02/23] media: i2c: ov01a10: Fix reported pixel-rate value
Date: Mon, 12 Jan 2026 11:59:28 +0200 [thread overview]
Message-ID: <20260112095949.3851-3-sakari.ailus@linux.intel.com> (raw)
In-Reply-To: <20260112095949.3851-1-sakari.ailus@linux.intel.com>
From: Hans de Goede <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>
Tested-by: Mehdi Djait <mehdi.djait@linux.intel.com> # Dell XPS 9315
Reviewed-by: Mehdi Djait <mehdi.djait@linux.intel.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
---
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
--
2.47.3
next prev parent reply other threads:[~2026-01-12 9:59 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-01-12 9:59 [PATCH v2 00/23] media: i2c: ov01a10: Add crop, ov01a1b support Sakari Ailus
2026-01-12 9:59 ` [PATCH v2 01/23] media: i2c: ov01a10: Fix the horizontal flip control Sakari Ailus
2026-01-12 9:59 ` Sakari Ailus [this message]
2026-01-13 2:43 ` [PATCH v2 02/23] media: i2c: ov01a10: Fix reported pixel-rate value Bingbu Cao
2026-01-12 9:59 ` [PATCH v2 03/23] media: i2c: ov01a10: Fix analogue gain range Sakari Ailus
2026-01-13 2:42 ` Bingbu Cao
2026-01-12 9:59 ` [PATCH v2 04/23] media: i2c: ov01a10: Add missing v4l2_subdev_cleanup() calls Sakari Ailus
2026-01-12 9:59 ` [PATCH v2 05/23] media: i2c: ov01a10: Fix passing stream instead of pad to v4l2_subdev_state_get_format() Sakari Ailus
2026-01-12 9:59 ` [PATCH v2 06/23] media: i2c: ov01a10: Fix test-pattern disabling Sakari Ailus
2026-01-13 2:59 ` Bingbu Cao
2026-01-13 8:14 ` Sakari Ailus
2026-01-13 10:41 ` Hans de Goede
2026-01-13 10:40 ` Hans de Goede
2026-01-12 9:59 ` [PATCH v2 07/23] media: i2c: ov01a10: Change default vblank value to a vblank resulting in 30 fps Sakari Ailus
2026-01-12 9:59 ` [PATCH v2 08/23] media: i2c: ov01a10: Convert to new CCI register access helpers Sakari Ailus
2026-01-12 9:59 ` [PATCH v2 09/23] media: i2c: ov01a10: Remove overly verbose probe() error reporting Sakari Ailus
2026-01-12 9:59 ` [PATCH v2 10/23] media: i2c: ov01a10: Store dev pointer in struct ov01a10 Sakari Ailus
2026-01-12 9:59 ` [PATCH v2 11/23] media: i2c: ov01a10: Add ov01a10_check_hwcfg() function Sakari Ailus
2026-01-12 9:59 ` [PATCH v2 12/23] media: i2c: ov01a10: Add power on/off sequencing support Sakari Ailus
2026-01-12 9:59 ` [PATCH v2 13/23] media: i2c: ov01a10: Don't update pixel_rate and link_freq from set_fmt Sakari Ailus
2026-01-12 9:59 ` [PATCH v2 14/23] media: i2c: ov01a10: Move setting of ctrl->flags to after checking ctrl_hdlr->error Sakari Ailus
2026-01-12 9:59 ` [PATCH v2 15/23] media: i2c: ov01a10: Use native and default for pixel-array size names Sakari Ailus
2026-01-12 9:59 ` [PATCH v2 16/23] media: i2c: ov01a10: Add cropping support / allow arbitrary sizes Sakari Ailus
2026-01-12 9:59 ` [PATCH v2 17/23] media: i2c: ov01a10: Remove struct ov01a10_reg_list Sakari Ailus
2026-01-12 9:59 ` [PATCH v2 18/23] media: i2c: ov01a10: Replace exposure->min/step with direct define use Sakari Ailus
2026-01-12 9:59 ` [PATCH v2 19/23] media: i2c: ov01a10: Only set register 0x0305 once Sakari Ailus
2026-01-12 9:59 ` [PATCH v2 20/23] media: i2c: ov01a10: Remove values set by controls from global_setting[] Sakari Ailus
2026-01-12 9:59 ` [PATCH v2 21/23] media: i2c: ov01a10: Add ov01a10_sensor_cfg struct Sakari Ailus
2026-01-12 9:59 ` [PATCH v2 22/23] media: i2c: ov01a10: Optimize setting h/vflip values Sakari Ailus
2026-01-12 9:59 ` [PATCH v2 23/23] media: i2c: ov01a10: Add ov01a1b support Sakari Ailus
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