linux-kernel - [PATCH v2 3/5] media: i2c: alvium: enable acquisition frame rate

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20240610081034.1195523-4-tomm.merciai@gmail.com>
Date: Mon, 10 Jun 2024 10:10:32 +0200
From: Tommaso Merciai <tomm.merciai@...il.com>
To: 
Cc: linuxfancy@...glegroups.com,
	sakari.ailus@...ux.intel.com,
	martin.hecht@...et.eu,
	tomm.merciai@...il.com,
	michael.roeder@...et.eu,
	Mauro Carvalho Chehab <mchehab@...nel.org>,
	linux-media@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH v2 3/5] media: i2c: alvium: enable acquisition frame rate

Alvium camera by default is in free running mode. Datasheet say that
acquisition frame rate reg can only be used if frame start trigger
mode is set to off.
Enable r/w aquisition frame rate and turn off trigger mode.

Signed-off-by: Tommaso Merciai <tomm.merciai@...il.com>
---
 drivers/media/i2c/alvium-csi2.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/drivers/media/i2c/alvium-csi2.c b/drivers/media/i2c/alvium-csi2.c
index 7a38c424ea48..a88809333e56 100644
--- a/drivers/media/i2c/alvium-csi2.c
+++ b/drivers/media/i2c/alvium-csi2.c
@@ -1189,6 +1189,20 @@ static int alvium_set_frame_rate(struct alvium_dev *alvium, u64 fr)
 	struct device *dev = &alvium->i2c_client->dev;
 	int ret;
 
+	ret = alvium_write_hshake(alvium, REG_BCRM_ACQUISITION_FRAME_RATE_EN_RW,
+				  1);
+	if (ret) {
+		dev_err(dev, "Fail to set acquisition frame rate enable reg\n");
+		return ret;
+	}
+
+	ret = alvium_write_hshake(alvium, REG_BCRM_FRAME_START_TRIGGER_MODE_RW,
+				  0);
+	if (ret) {
+		dev_err(dev, "Fail to set frame start trigger mode reg\n");
+		return ret;
+	}
+
 	ret = alvium_write_hshake(alvium, REG_BCRM_ACQUISITION_FRAME_RATE_RW,
 				  fr);
 	if (ret) {
-- 
2.34.1