From: Hans de Goede <johannes.goede@oss.qualcomm.com>
To: Laurent Pinchart <Laurent.pinchart@ideasonboard.com>,
Mauro Carvalho Chehab <mchehab@kernel.org>,
Sakari Ailus <sakari.ailus@linux.intel.com>
Cc: linux-media@vger.kernel.org, linux-kernel@vger.kernel.org,
Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
Hans de Goede <johannes.goede@oss.qualcomm.com>
Subject: [PATCH v5 04/14] media: mt9m114: Fix default hblank and vblank values
Date: Tue, 30 Dec 2025 18:03:01 +0100 [thread overview]
Message-ID: <20251230-mt9m114-atomisp-v5-4-763539e76094@oss.qualcomm.com> (raw)
In-Reply-To: <20251230-mt9m114-atomisp-v5-0-763539e76094@oss.qualcomm.com>
The current default hblank and vblank values are based on reaching 30 fps
with the pixel-array outputting 1280x960, but the default format for
the pixel-array source pad and the isp sink pad is 1296x976, correct
the default hblank and vblank values to take this into account.
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans de Goede <johannes.goede@oss.qualcomm.com>
---
Changes in v2:
- Update comment about resolution / pixrate / FPS to:
* Set the default to achieve full resolution (1296x976 analog crop
* rectangle, 1280x960 output size) at 30fps with a 48 MHz pixclock.
---
drivers/media/i2c/mt9m114.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/drivers/media/i2c/mt9m114.c b/drivers/media/i2c/mt9m114.c
index d9cc260a13bd9f7dc76b69696ce18b953f43e3d0..3cb00e69623fa422bdecbe3eb36f911d92405341 100644
--- a/drivers/media/i2c/mt9m114.c
+++ b/drivers/media/i2c/mt9m114.c
@@ -332,12 +332,13 @@
* minimum values that have been seen in register lists are 303 and 21, use
* them.
*
- * Set the default to achieve 1280x960 at 30fps with a 48 MHz pixclock.
+ * Set the default to achieve full resolution (1296x976 analog crop
+ * rectangle, 1280x960 output size) at 30fps with a 48 MHz pixclock.
*/
#define MT9M114_MIN_HBLANK 303
#define MT9M114_MIN_VBLANK 21
-#define MT9M114_DEF_HBLANK 323
-#define MT9M114_DEF_VBLANK 39
+#define MT9M114_DEF_HBLANK 307
+#define MT9M114_DEF_VBLANK 23
#define MT9M114_DEF_FRAME_RATE 30
#define MT9M114_MAX_FRAME_RATE 120
--
2.52.0
next prev parent reply other threads:[~2025-12-30 17:03 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-12-30 17:02 [PATCH v5 00/14] media: mt9m114: Changes to make it work with atomisp devices Hans de Goede
2025-12-30 17:02 ` [PATCH v5 01/14] media: aptina-pll: Debug log p1 min and max values Hans de Goede
2025-12-30 17:02 ` [PATCH v5 02/14] media: mt9m114: Use aptina-PLL helper to get PLL values Hans de Goede
2025-12-31 0:29 ` Laurent Pinchart
2025-12-30 17:03 ` [PATCH v5 03/14] media: mt9m114: Lower minimum vblank value Hans de Goede
2025-12-30 17:03 ` Hans de Goede [this message]
2025-12-30 17:03 ` [PATCH v5 05/14] media: mt9m114: Tweak default hblank and vblank for more accurate fps Hans de Goede
2025-12-30 17:03 ` [PATCH v5 06/14] media: mt9m114: Avoid a reset low spike during probe() Hans de Goede
2025-12-30 17:03 ` [PATCH v5 07/14] media: mt9m114: Put sensor in reset on power down Hans de Goede
2025-12-30 17:03 ` [PATCH v5 08/14] media: mt9m114: Add and use mt9m114_ifp_get_border() helper function Hans de Goede
2025-12-30 17:03 ` [PATCH v5 09/14] media: mt9m114: Adjust IFP selections and source format when source format changes to/from RAW10 Hans de Goede
2025-12-30 17:03 ` [PATCH v5 10/14] media: mt9m114: Update source pad selection and format when sink pad format changes Hans de Goede
2025-12-30 17:03 ` [PATCH v5 11/14] media: mt9m114: Don't allow changing the IFP crop/compose selections when bypassing the scaler Hans de Goede
2025-12-30 17:03 ` [PATCH v5 12/14] media: mt9m114: Drop start-, stop-streaming sequence from initialize Hans de Goede
2025-12-30 17:03 ` [PATCH v5 13/14] media: mt9m114: Return -EPROBE_DEFER if no endpoint is found Hans de Goede
2025-12-30 17:03 ` [PATCH v5 14/14] media: mt9m114: Add ACPI enumeration support Hans de Goede
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