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62b7f5931c
bcm2708: boot tested on RPi B+ v1.2
bcm2709: boot tested on RPi 3B v1.2 and RPi 4B v1.1 4G
bcm2710: boot tested on RPi 3B v1.2
bcm2711: boot tested on RPi 4B v1.1 4G
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
(cherry-picked from commit f07e572f64)
135 lines
4.3 KiB
Diff
135 lines
4.3 KiB
Diff
From 0dd7e12bb7dc81e09440f3330465c31349497dc3 Mon Sep 17 00:00:00 2001
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From: Jacopo Mondi <jacopo+renesas@jmondi.org>
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Date: Tue, 16 Jun 2020 16:12:38 +0200
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Subject: [PATCH]_mbus_config
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ops
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Upstream https://patchwork.linuxtv.org/patch/64674/
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Use the new get_mbus_config and set_mbus_config pad operations in place
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of the video operations currently in use.
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Compared to other drivers where the same conversion has been performed,
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ov6650 proved to be a bit more tricky, as the existing g_mbus_config
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implementation did not report the currently applied configuration but
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the set of all possible configuration options.
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Adapt the driver to support the semantic of the two newly introduced
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operations:
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- get_mbus_config reports the current media bus configuration
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- set_mbus_config applies only changes explicitly requested and updates
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the provided cfg parameter to report what has actually been applied to
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the hardware.
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Compile-tested only.
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Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
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---
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drivers/media/i2c/ov6650.c | 56 ++++++++++++++++++++++++++------------
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1 file changed, 39 insertions(+), 17 deletions(-)
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--- a/drivers/media/i2c/ov6650.c
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+++ b/drivers/media/i2c/ov6650.c
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@@ -909,46 +909,68 @@ static const struct v4l2_subdev_core_ops
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};
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/* Request bus settings on camera side */
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-static int ov6650_g_mbus_config(struct v4l2_subdev *sd,
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- struct v4l2_mbus_config *cfg)
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+static int ov6650_get_mbus_config(struct v4l2_subdev *sd,
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+ unsigned int pad,
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+ struct v4l2_mbus_config *cfg)
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{
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+ struct i2c_client *client = v4l2_get_subdevdata(sd);
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+ u8 comj, comf;
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+ int ret;
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+
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+ ret = ov6650_reg_read(client, REG_COMJ, &comj);
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+ if (ret)
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+ return ret;
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+
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+ ret = ov6650_reg_read(client, REG_COMF, &comf);
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+ if (ret)
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+ return ret;
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- cfg->flags = V4L2_MBUS_MASTER |
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- V4L2_MBUS_PCLK_SAMPLE_RISING | V4L2_MBUS_PCLK_SAMPLE_FALLING |
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- V4L2_MBUS_HSYNC_ACTIVE_HIGH | V4L2_MBUS_HSYNC_ACTIVE_LOW |
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- V4L2_MBUS_VSYNC_ACTIVE_HIGH | V4L2_MBUS_VSYNC_ACTIVE_LOW |
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- V4L2_MBUS_DATA_ACTIVE_HIGH;
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+ cfg->flags = V4L2_MBUS_MASTER
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+ | ((comj & COMJ_VSYNC_HIGH) ? V4L2_MBUS_VSYNC_ACTIVE_HIGH
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+ : V4L2_MBUS_VSYNC_ACTIVE_LOW)
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+ | ((comf & COMF_HREF_LOW) ? V4L2_MBUS_HSYNC_ACTIVE_LOW
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+ : V4L2_MBUS_HSYNC_ACTIVE_HIGH)
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+ | ((comj & COMJ_PCLK_RISING) ? V4L2_MBUS_PCLK_SAMPLE_RISING
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+ : V4L2_MBUS_PCLK_SAMPLE_FALLING);
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cfg->type = V4L2_MBUS_PARALLEL;
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return 0;
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}
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/* Alter bus settings on camera side */
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-static int ov6650_s_mbus_config(struct v4l2_subdev *sd,
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- const struct v4l2_mbus_config *cfg)
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+static int ov6650_set_mbus_config(struct v4l2_subdev *sd,
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+ unsigned int pad,
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+ struct v4l2_mbus_config *cfg)
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{
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struct i2c_client *client = v4l2_get_subdevdata(sd);
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- int ret;
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+ int ret = 0;
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if (cfg->flags & V4L2_MBUS_PCLK_SAMPLE_RISING)
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ret = ov6650_reg_rmw(client, REG_COMJ, COMJ_PCLK_RISING, 0);
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- else
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+ else if (cfg->flags & V4L2_MBUS_PCLK_SAMPLE_FALLING)
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ret = ov6650_reg_rmw(client, REG_COMJ, 0, COMJ_PCLK_RISING);
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if (ret)
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- return ret;
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+ goto error;
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if (cfg->flags & V4L2_MBUS_HSYNC_ACTIVE_LOW)
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ret = ov6650_reg_rmw(client, REG_COMF, COMF_HREF_LOW, 0);
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- else
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+ else if (cfg->flags & V4L2_MBUS_HSYNC_ACTIVE_HIGH)
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ret = ov6650_reg_rmw(client, REG_COMF, 0, COMF_HREF_LOW);
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if (ret)
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- return ret;
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+ goto error;
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if (cfg->flags & V4L2_MBUS_VSYNC_ACTIVE_HIGH)
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ret = ov6650_reg_rmw(client, REG_COMJ, COMJ_VSYNC_HIGH, 0);
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- else
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+ else if (cfg->flags & V4L2_MBUS_VSYNC_ACTIVE_LOW)
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ret = ov6650_reg_rmw(client, REG_COMJ, 0, COMJ_VSYNC_HIGH);
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+error:
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+ /*
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+ * Update the configuration to report what is actually applied to
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+ * the hardware.
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+ */
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+ ov6650_get_mbus_config(sd, pad, cfg);
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+
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return ret;
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}
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@@ -956,8 +978,6 @@ static const struct v4l2_subdev_video_op
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.s_stream = ov6650_s_stream,
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.g_frame_interval = ov6650_g_frame_interval,
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.s_frame_interval = ov6650_s_frame_interval,
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- .g_mbus_config = ov6650_g_mbus_config,
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- .s_mbus_config = ov6650_s_mbus_config,
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};
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static const struct v4l2_subdev_pad_ops ov6650_pad_ops = {
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@@ -966,6 +986,8 @@ static const struct v4l2_subdev_pad_ops
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.set_selection = ov6650_set_selection,
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.get_fmt = ov6650_get_fmt,
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.set_fmt = ov6650_set_fmt,
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+ .get_mbus_config = ov6650_get_mbus_config,
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+ .set_mbus_config = ov6650_set_mbus_config,
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};
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static const struct v4l2_subdev_ops ov6650_subdev_ops = {
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