From: Kate Hsuan <hpa@redhat.com>
To: Mauro Carvalho Chehab <mchehab@kernel.org>,
Hans de Goede <hansg@kernel.org>,
Sakari Ailus <sakari.ailus@linux.intel.com>,
Serin Yeh <serin.yeh@intel.com>
Cc: linux-media@vger.kernel.org, linux-kernel@vger.kernel.org,
Kate Hsuan <hpa@redhat.com>
Subject: [PATCH] media: i2c: imx471: Add line length PCK setting
Date: Tue, 28 Jul 2026 12:20:13 +0800 [thread overview]
Message-ID: <20260728042013.23707-1-hpa@redhat.com> (raw)
Add the line length PCK setting to the IMX471 driver. This parameter
determines the horizontal line scan duration and is used for
controlling the frame rate.
Signed-off-by: Kate Hsuan <hpa@redhat.com>
---
drivers/media/i2c/imx471.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/media/i2c/imx471.c b/drivers/media/i2c/imx471.c
index 6d358b11e96d..e661f5b78dcc 100644
--- a/drivers/media/i2c/imx471.c
+++ b/drivers/media/i2c/imx471.c
@@ -91,6 +91,7 @@
#define IMX471_CSI_2_LANE_MODE 1
#define IMX471_CSI_4_LANE_MODE 3
+#define IMX471_REG_LINE_LENGTH_PCK CCI_REG16(0x0342)
#define IMX471_REG_X_ADD_STA CCI_REG16(0x0344)
#define IMX471_REG_Y_ADD_STA CCI_REG16(0x0346)
#define IMX471_REG_X_ADD_END CCI_REG16(0x0348)
@@ -240,6 +241,7 @@ static const struct cci_reg_sequence mode_1928x1088_regs[] = {
{ CCI_REG8(0x030d), 0x02 },
{ CCI_REG8(0x030e), 0x00 },
{ CCI_REG8(0x030f), 0x53 },
+ { IMX471_REG_LINE_LENGTH_PCK, 5008 },
{ IMX471_REG_PLL_MULT_DRIV, IMX471_PLL_DUAL },
{ CCI_REG8(0x3f4c), 0x81 },
{ CCI_REG8(0x3f4d), 0x81 },
--
2.55.0
next reply other threads:[~2026-07-28 4:20 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-28 4:20 Kate Hsuan [this message]
2026-07-28 5:27 ` Jai Luthra
2026-07-28 6:54 ` Kate Hsuan
2026-07-28 7:51 ` Sakari Ailus
2026-07-28 8:33 ` Kate Hsuan
2026-07-28 12:34 ` Sakari Ailus
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