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2e715fb4fc
Add support for BCM2712 (Raspberry Pi 5).
3bb5880ab3
Patches were generated from the diff between linux kernel branch linux-6.1.y
and rpi-6.1.y from raspberry pi kernel source:
- git format-patch linux-6.1.y...rpi-6.1.y
Build system: x86_64
Build-tested: bcm2708, bcm2709, bcm2710, bcm2711
Run-tested: bcm2710/RPi3B, bcm2711/RPi4B
Signed-off-by: Marty Jones <mj8263788@gmail.com>
[Remove applied and reverted patches, squash patches and config commits]
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
86 lines
3.3 KiB
Diff
86 lines
3.3 KiB
Diff
From 083f39e40d980b47ab12b451d40b9f935bb22a5b Mon Sep 17 00:00:00 2001
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From: Nick Hollinghurst <nick.hollinghurst@raspberrypi.com>
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Date: Wed, 6 Dec 2023 14:27:57 +0000
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Subject: [PATCH] drivers: media: i2c: imx296,imx477: Configure tigger_mode
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every time
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Don't assume the camera has been reset each time we start streaming,
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but always write registers relating to trigger_mode, even in mode 0.
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IMX477: Stop driving XVS on stop streaming, to avoid spurious pulses.
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Signed-off-by: Nick Hollinghurst <nick.hollinghurst@raspberrypi.com>
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---
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drivers/media/i2c/imx296.c | 9 +++++----
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drivers/media/i2c/imx477.c | 29 ++++++++++++++---------------
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2 files changed, 19 insertions(+), 19 deletions(-)
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--- a/drivers/media/i2c/imx296.c
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+++ b/drivers/media/i2c/imx296.c
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@@ -650,10 +650,11 @@ static int imx296_stream_on(struct imx29
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imx296_write(sensor, IMX296_CTRL00, 0, &ret);
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usleep_range(2000, 5000);
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- if (trigger_mode == 1) {
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- imx296_write(sensor, IMX296_CTRL0B, IMX296_CTRL0B_TRIGEN, &ret);
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- imx296_write(sensor, IMX296_LOWLAGTRG, IMX296_LOWLAGTRG_FAST, &ret);
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- }
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+ /* external trigger mode: 0=normal, 1=triggered */
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+ imx296_write(sensor, IMX296_CTRL0B,
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+ (trigger_mode == 1) ? IMX296_CTRL0B_TRIGEN : 0, &ret);
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+ imx296_write(sensor, IMX296_LOWLAGTRG,
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+ (trigger_mode == 1) ? IMX296_LOWLAGTRG_FAST : 0, &ret);
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imx296_write(sensor, IMX296_CTRL0A, 0, &ret);
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--- a/drivers/media/i2c/imx477.c
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+++ b/drivers/media/i2c/imx477.c
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@@ -1742,26 +1742,21 @@ static int imx477_start_streaming(struct
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imx477_write_reg(imx477, 0x0b05, IMX477_REG_VALUE_08BIT, !!dpc_enable);
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imx477_write_reg(imx477, 0x0b06, IMX477_REG_VALUE_08BIT, !!dpc_enable);
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- /* Set vsync trigger mode */
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- if (trigger_mode != 0) {
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- /* trigger_mode == 1 for source, 2 for sink */
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- const u32 val = (trigger_mode == 1) ? 1 : 0;
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-
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- imx477_write_reg(imx477, IMX477_REG_MC_MODE,
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- IMX477_REG_VALUE_08BIT, 1);
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- imx477_write_reg(imx477, IMX477_REG_MS_SEL,
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- IMX477_REG_VALUE_08BIT, val);
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- imx477_write_reg(imx477, IMX477_REG_XVS_IO_CTRL,
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- IMX477_REG_VALUE_08BIT, val);
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- imx477_write_reg(imx477, IMX477_REG_EXTOUT_EN,
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- IMX477_REG_VALUE_08BIT, val);
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- }
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-
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/* Apply customized values from user */
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ret = __v4l2_ctrl_handler_setup(imx477->sd.ctrl_handler);
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if (ret)
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return ret;
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+ /* Set vsync trigger mode: 0=standalone, 1=source, 2=sink */
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+ imx477_write_reg(imx477, IMX477_REG_MC_MODE,
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+ IMX477_REG_VALUE_08BIT, (trigger_mode > 0) ? 1 : 0);
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+ imx477_write_reg(imx477, IMX477_REG_MS_SEL,
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+ IMX477_REG_VALUE_08BIT, (trigger_mode <= 1) ? 1 : 0);
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+ imx477_write_reg(imx477, IMX477_REG_XVS_IO_CTRL,
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+ IMX477_REG_VALUE_08BIT, (trigger_mode == 1) ? 1 : 0);
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+ imx477_write_reg(imx477, IMX477_REG_EXTOUT_EN,
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+ IMX477_REG_VALUE_08BIT, (trigger_mode == 1) ? 1 : 0);
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+
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/* set stream on register */
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return imx477_write_reg(imx477, IMX477_REG_MODE_SELECT,
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IMX477_REG_VALUE_08BIT, IMX477_MODE_STREAMING);
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@@ -1778,6 +1773,10 @@ static void imx477_stop_streaming(struct
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IMX477_REG_VALUE_08BIT, IMX477_MODE_STANDBY);
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if (ret)
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dev_err(&client->dev, "%s failed to set stream\n", __func__);
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+
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+ /* Stop driving XVS out (there is still a weak pull-up) */
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+ imx477_write_reg(imx477, IMX477_REG_EXTOUT_EN,
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+ IMX477_REG_VALUE_08BIT, 0);
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}
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static int imx477_set_stream(struct v4l2_subdev *sd, int enable)
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