78 lines
2.8 KiB
Diff
78 lines
2.8 KiB
Diff
From f4102d30e760482e9f2fc94dcf8ce223afef3230 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Erik=20Bot=C3=B6?= <erik.boto@gmail.com>
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Date: Fri, 9 Feb 2024 18:37:46 +0100
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Subject: [PATCH 1294/1295] imx477: make trigger-mode more configurable
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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Allow trigger-mode to be overridden using device tree so that it can be
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set per camera. Previously the mode could only be changed using a module
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parameter, which would then affect all cameras.
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Signed-off-by: Erik Botö <erik.boto@gmail.com>
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---
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drivers/media/i2c/imx477.c | 19 ++++++++++++++-----
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1 file changed, 14 insertions(+), 5 deletions(-)
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--- a/drivers/media/i2c/imx477.c
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+++ b/drivers/media/i2c/imx477.c
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@@ -1124,6 +1124,9 @@ struct imx477 {
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/* Current mode */
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const struct imx477_mode *mode;
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+ /* Trigger mode */
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+ int trigger_mode_of;
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+
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/*
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* Mutex for serialized access:
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* Protect sensor module set pad format and start/stop streaming safely.
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@@ -1711,7 +1714,7 @@ static int imx477_start_streaming(struct
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struct i2c_client *client = v4l2_get_subdevdata(&imx477->sd);
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const struct imx477_reg_list *reg_list;
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const struct imx477_reg_list *extra_regs;
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- int ret;
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+ int ret, tm;
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if (!imx477->common_regs_written) {
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ret = imx477_write_regs(imx477, mode_common_regs,
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@@ -1748,14 +1751,15 @@ static int imx477_start_streaming(struct
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return ret;
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/* Set vsync trigger mode: 0=standalone, 1=source, 2=sink */
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+ tm = (imx477->trigger_mode_of >= 0) ? imx477->trigger_mode_of : trigger_mode;
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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_REG_VALUE_08BIT, (tm > 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_REG_VALUE_08BIT, (tm <= 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_REG_VALUE_08BIT, (tm == 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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+ IMX477_REG_VALUE_08BIT, (tm == 1) ? 1 : 0);
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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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@@ -2187,6 +2191,7 @@ static int imx477_probe(struct i2c_clien
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struct imx477 *imx477;
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const struct of_device_id *match;
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int ret;
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+ u32 tm_of;
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imx477 = devm_kzalloc(&client->dev, sizeof(*imx477), GFP_KERNEL);
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if (!imx477)
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@@ -2204,6 +2209,10 @@ static int imx477_probe(struct i2c_clien
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if (imx477_check_hwcfg(dev))
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return -EINVAL;
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+ /* Default the trigger mode from OF to -1, which means invalid */
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+ ret = of_property_read_u32(dev->of_node, "trigger-mode", &tm_of);
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+ imx477->trigger_mode_of = (ret == 0) ? tm_of : -1;
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+
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/* Get system clock (xclk) */
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imx477->xclk = devm_clk_get(dev, NULL);
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if (IS_ERR(imx477->xclk)) {
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