82 lines
2.0 KiB
Diff
82 lines
2.0 KiB
Diff
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From 6ea422ff3561bc5241527e478884dd64e9caabe6 Mon Sep 17 00:00:00 2001
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From: Ondrej Jirman <megi@xff.cz>
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Date: Thu, 9 Jun 2022 01:04:18 +0200
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Subject: [PATCH 354/389] media: i2c: imx258: Add debug register access
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This is useful during development.
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Signed-off-by: Ondrej Jirman <megi@xff.cz>
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---
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drivers/media/i2c/imx258.c | 48 ++++++++++++++++++++++++++++++++++++++
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1 file changed, 48 insertions(+)
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diff --git a/drivers/media/i2c/imx258.c b/drivers/media/i2c/imx258.c
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index 83068d1033ea..553b4a821563 100644
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--- a/drivers/media/i2c/imx258.c
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+++ b/drivers/media/i2c/imx258.c
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@@ -1275,6 +1275,53 @@ static int imx258_identify_module(struct imx258 *imx258)
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return 0;
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}
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+#ifdef CONFIG_VIDEO_ADV_DEBUG
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+static int imx258_g_register(struct v4l2_subdev *sd,
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+ struct v4l2_dbg_register *reg)
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+{
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+ struct imx258 *imx258 = to_imx258(sd);
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+ u32 val = 0;
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+ int ret;
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+
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+ if (reg->reg > 0xffff)
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+ return -EINVAL;
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+
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+ reg->size = 1;
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+
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+ mutex_lock(&imx258->mutex);
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+ ret = imx258_read_reg(imx258, reg->reg, 1, &val);
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+ mutex_unlock(&imx258->mutex);
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+ if (ret)
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+ return -EIO;
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+
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+ reg->val = val;
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+ return 0;
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+}
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+
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+static int imx258_s_register(struct v4l2_subdev *sd,
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+ const struct v4l2_dbg_register *reg)
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+{
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+ struct imx258 *imx258 = to_imx258(sd);
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+ int ret;
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+
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+ if (reg->reg > 0xffff || reg->val > 0xff)
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+ return -EINVAL;
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+
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+ mutex_lock(&imx258->mutex);
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+ ret = imx258_write_reg(imx258, reg->reg, 1, reg->val);
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+ mutex_unlock(&imx258->mutex);
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+
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+ return ret;
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+}
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+#endif
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+
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+static const struct v4l2_subdev_core_ops imx258_core_ops = {
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+#ifdef CONFIG_VIDEO_ADV_DEBUG
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+ .g_register = imx258_g_register,
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+ .s_register = imx258_s_register,
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+#endif
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+};
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+
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static const struct v4l2_subdev_video_ops imx258_video_ops = {
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.s_stream = imx258_set_stream,
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};
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@@ -1287,6 +1334,7 @@ static const struct v4l2_subdev_pad_ops imx258_pad_ops = {
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};
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static const struct v4l2_subdev_ops imx258_subdev_ops = {
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+ .core = &imx258_core_ops,
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.video = &imx258_video_ops,
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.pad = &imx258_pad_ops,
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};
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--
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2.35.3
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