From: Hans de Goede <hansg@kernel.org>
To: Sakari Ailus <sakari.ailus@linux.intel.com>,
Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Hans de Goede <hansg@kernel.org>,
Mathis Foerst <mathis.foerst@mt.com>,
linux-media@vger.kernel.org
Subject: [PATCH v3 04/15] media: mt9m114: Lower minimum vblank value
Date: Sun, 29 Jun 2025 22:56:14 +0200 [thread overview]
Message-ID: <20250629205626.68341-5-hansg@kernel.org> (raw)
In-Reply-To: <20250629205626.68341-1-hansg@kernel.org>
As the comment above the defines says, the minimum values are undocumented
so the lowest values seen in register lists are used.
The version of the mt9m114 driver shipped together with the atomisp code
uses 21 for vblank in its register lists, lower MT9M114_MIN_VBLANK
accordingly.
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans de Goede <hansg@kernel.org>
---
drivers/media/i2c/mt9m114.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/media/i2c/mt9m114.c b/drivers/media/i2c/mt9m114.c
index 9e703012cb0e..25d2b3fd4293 100644
--- a/drivers/media/i2c/mt9m114.c
+++ b/drivers/media/i2c/mt9m114.c
@@ -325,13 +325,13 @@
/*
* The minimum amount of horizontal and vertical blanking is undocumented. The
- * minimum values that have been seen in register lists are 303 and 38, use
+ * 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.
*/
#define MT9M114_MIN_HBLANK 303
-#define MT9M114_MIN_VBLANK 38
+#define MT9M114_MIN_VBLANK 21
#define MT9M114_DEF_HBLANK 323
#define MT9M114_DEF_VBLANK 39
--
2.49.0
next prev parent reply other threads:[~2025-06-29 20:56 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-06-29 20:56 [PATCH v3 00/15] media: mt9m114: Changes to make it work with atomisp devices Hans de Goede
2025-06-29 20:56 ` [PATCH v3 01/15] media: aptina-pll: Debug log p1 min and max values Hans de Goede
2025-06-29 20:56 ` [PATCH v3 02/15] media: mt9m114: Add support for clock-frequency property Hans de Goede
2025-06-29 20:56 ` [PATCH v3 03/15] media: mt9m114: Use aptina-PLL helper to get PLL values Hans de Goede
2025-06-29 20:56 ` Hans de Goede [this message]
2025-06-29 20:56 ` [PATCH v3 05/15] media: mt9m114: Fix default hblank and vblank values Hans de Goede
2025-06-29 20:56 ` [PATCH v3 06/15] media: mt9m114: Tweak default hblank and vblank for more accurate fps Hans de Goede
2025-06-29 20:56 ` [PATCH v3 07/15] media: mt9m114: Avoid a reset low spike during probe() Hans de Goede
2025-06-29 20:56 ` [PATCH v3 08/15] media: mt9m114: Put sensor in reset on power down Hans de Goede
2025-06-29 20:56 ` [PATCH v3 09/15] media: mt9m114: Add and use mt9m114_ifp_get_border() helper function Hans de Goede
2025-07-02 0:17 ` Laurent Pinchart
2025-06-29 20:56 ` [PATCH v3 10/15] media: mt9m114: Adjust IFP selections and src format when src pixelfmt changes to/from RAW10 Hans de Goede
2025-07-02 0:32 ` Laurent Pinchart
2025-12-23 13:33 ` Hans de Goede
2025-06-29 20:56 ` [PATCH v3 11/15] media: mt9m114: Update src pad sel and format when sink pad format changes Hans de Goede
2025-07-02 0:36 ` Laurent Pinchart
2025-06-29 20:56 ` [PATCH v3 12/15] media: mt9m114: Don't allow changing the IFP crop/compose selections when bypassing the scaler Hans de Goede
2025-07-02 0:42 ` Laurent Pinchart
2025-06-29 20:56 ` [PATCH v3 13/15] media: mt9m114: Drop start-, stop-streaming sequence from initialize Hans de Goede
2025-07-02 1:08 ` Laurent Pinchart
2025-12-23 13:37 ` Hans de Goede
2025-12-23 16:50 ` Laurent Pinchart
2025-12-23 16:57 ` Hans de Goede
2025-06-29 20:56 ` [PATCH v3 14/15] media: mt9m114: Return -EPROBE_DEFER if no endpoint is found Hans de Goede
2025-07-02 0:53 ` Laurent Pinchart
2025-12-24 12:12 ` Hans de Goede
2025-12-27 14:54 ` Laurent Pinchart
2025-06-29 20:56 ` [PATCH v3 15/15] media: mt9m114: Add ACPI enumeration support Hans de Goede
[not found] ` <6861b00f.050a0220.379e4a.5185@mx.google.com>
2025-06-30 7:34 ` [v3,00/15] media: mt9m114: Changes to make it work with atomisp devices Hans de Goede
2025-06-30 22:28 ` [PATCH v3 00/15] " Laurent Pinchart
2025-07-01 13:21 ` Hans de Goede
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