BPI-CM5 Pro cam resolution

alx1 · November 26, 2025, 5:56pm

Hello! Is it possible to get 4k30fps(i looking for 4k fully or 4k2k res) on ov13850 how can this be achieved? When i try to set 4k fps is dropping, is this camera limitations or software?

itlhd · November 28, 2025, 7:37am

github.com

ArmSoM/rk3576_linux_rkr5_sdk/blob/main/kernel-6.1/drivers/media/i2c/ov13850.c

// SPDX-License-Identifier: GPL-2.0
/*
 * ov13850 driver
 *
 * Copyright (C) 2017 Fuzhou Rockchip Electronics Co., Ltd.
 *
 * V0.0X01.0X01 add poweron function.
 * V0.0X01.0X02 fix mclk issue when probe multiple camera.
 * V0.0X01.0X03 add enum_frame_interval function.
 * V0.0X01.0X04 add quick stream on/off
 * V0.0X01.0X05 add function g_mbus_config
 */

#include <linux/clk.h>
#include <linux/device.h>
#include <linux/delay.h>
#include <linux/gpio/consumer.h>
#include <linux/i2c.h>
#include <linux/module.h>
#include <linux/pm_runtime.h>

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OV13850 supports 2K 4K resolution and defaults to 2K, but typically does not reach 30 frames per second, with lower frame rates for 4K resolution

If you want to set the 4K resolution by default, set the content of “supported modes [0]“” to the 4K parameter

alx1 · November 28, 2025, 6:23pm

Thanks! Low fps at 4k is the camera, software or SoC limitation?

And could u please provide information about ISP params, how to set this I looked many another info for rkisp but doesn’t found any comprehensive information on how to work with ISP like set hdr, wdr etc