From 074f41ba54c77a607898ee9cba6994215912f640 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Erik=20Bot=C3=B6?= Date: Fri, 9 Feb 2024 18:37:46 +0100 Subject: [PATCH 0969/1085] imx477: make trigger-mode more configurable MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Allow trigger-mode to be overridden using device tree so that it can be set per camera. Previously the mode could only be changed using a module parameter, which would then affect all cameras. Signed-off-by: Erik Botö --- drivers/media/i2c/imx477.c | 19 ++++++++++++++----- 1 file changed, 14 insertions(+), 5 deletions(-) --- a/drivers/media/i2c/imx477.c +++ b/drivers/media/i2c/imx477.c @@ -1124,6 +1124,9 @@ struct imx477 { /* Current mode */ const struct imx477_mode *mode; + /* Trigger mode */ + int trigger_mode_of; + /* * Mutex for serialized access: * Protect sensor module set pad format and start/stop streaming safely. @@ -1711,7 +1714,7 @@ static int imx477_start_streaming(struct struct i2c_client *client = v4l2_get_subdevdata(&imx477->sd); const struct imx477_reg_list *reg_list; const struct imx477_reg_list *extra_regs; - int ret; + int ret, tm; if (!imx477->common_regs_written) { ret = imx477_write_regs(imx477, mode_common_regs, @@ -1748,14 +1751,15 @@ static int imx477_start_streaming(struct return ret; /* Set vsync trigger mode: 0=standalone, 1=source, 2=sink */ + tm = (imx477->trigger_mode_of >= 0) ? imx477->trigger_mode_of : trigger_mode; imx477_write_reg(imx477, IMX477_REG_MC_MODE, - IMX477_REG_VALUE_08BIT, (trigger_mode > 0) ? 1 : 0); + IMX477_REG_VALUE_08BIT, (tm > 0) ? 1 : 0); imx477_write_reg(imx477, IMX477_REG_MS_SEL, - IMX477_REG_VALUE_08BIT, (trigger_mode <= 1) ? 1 : 0); + IMX477_REG_VALUE_08BIT, (tm <= 1) ? 1 : 0); imx477_write_reg(imx477, IMX477_REG_XVS_IO_CTRL, - IMX477_REG_VALUE_08BIT, (trigger_mode == 1) ? 1 : 0); + IMX477_REG_VALUE_08BIT, (tm == 1) ? 1 : 0); imx477_write_reg(imx477, IMX477_REG_EXTOUT_EN, - IMX477_REG_VALUE_08BIT, (trigger_mode == 1) ? 1 : 0); + IMX477_REG_VALUE_08BIT, (tm == 1) ? 1 : 0); /* set stream on register */ return imx477_write_reg(imx477, IMX477_REG_MODE_SELECT, @@ -2187,6 +2191,7 @@ static int imx477_probe(struct i2c_clien struct imx477 *imx477; const struct of_device_id *match; int ret; + u32 tm_of; imx477 = devm_kzalloc(&client->dev, sizeof(*imx477), GFP_KERNEL); if (!imx477) @@ -2204,6 +2209,10 @@ static int imx477_probe(struct i2c_clien if (imx477_check_hwcfg(dev)) return -EINVAL; + /* Default the trigger mode from OF to -1, which means invalid */ + ret = of_property_read_u32(dev->of_node, "trigger-mode", &tm_of); + imx477->trigger_mode_of = (ret == 0) ? tm_of : -1; + /* Get system clock (xclk) */ imx477->xclk = devm_clk_get(dev, NULL); if (IS_ERR(imx477->xclk)) {