mirror of
https://git.openwrt.org/openwrt/openwrt.git
synced 2024-06-09 08:16:26 +02:00
8299d1f057
Rebased RPi foundation patches on linux 5.10.59, removed applied and reverted patches, wireless patches and defconfig patches. bcm2708: boot tested on RPi B+ v1.2 bcm2709: boot tested on RPi 4B v1.1 4G bcm2711: boot tested on RPi 4B v1.1 4G Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
57 lines
1.8 KiB
Diff
57 lines
1.8 KiB
Diff
From 80a9aa25edc6144c3d6d3aaf9f731240d8868714 Mon Sep 17 00:00:00 2001
|
|
From: Dave Stevenson <dave.stevenson@raspberrypi.com>
|
|
Date: Tue, 23 Jun 2020 14:32:51 +0100
|
|
Subject: [PATCH] media: bcm2835-unicam: Add support for
|
|
get_mbus_config to set num lanes
|
|
|
|
Use the get_mbus_config pad subdev call to allow a source to use
|
|
fewer than the number of CSI2 lanes defined in device tree.
|
|
|
|
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
|
|
---
|
|
.../media/platform/bcm2835/bcm2835-unicam.c | 31 ++++++++++++++++---
|
|
1 file changed, 27 insertions(+), 4 deletions(-)
|
|
|
|
--- a/drivers/media/platform/bcm2835/bcm2835-unicam.c
|
|
+++ b/drivers/media/platform/bcm2835/bcm2835-unicam.c
|
|
@@ -1639,12 +1639,35 @@ static int unicam_start_streaming(struct
|
|
goto err_streaming;
|
|
}
|
|
|
|
- /*
|
|
- * TODO: Retrieve the number of active data lanes from the connected
|
|
- * subdevice.
|
|
- */
|
|
dev->active_data_lanes = dev->max_data_lanes;
|
|
|
|
+ if (dev->bus_type == V4L2_MBUS_CSI2_DPHY) {
|
|
+ struct v4l2_mbus_config mbus_config = { 0 };
|
|
+
|
|
+ ret = v4l2_subdev_call(dev->sensor, pad, get_mbus_config,
|
|
+ 0, &mbus_config);
|
|
+ if (ret < 0 && ret != -ENOIOCTLCMD) {
|
|
+ unicam_dbg(3, dev, "g_mbus_config failed\n");
|
|
+ goto err_pm_put;
|
|
+ }
|
|
+
|
|
+ dev->active_data_lanes =
|
|
+ (mbus_config.flags & V4L2_MBUS_CSI2_LANE_MASK) >>
|
|
+ __ffs(V4L2_MBUS_CSI2_LANE_MASK);
|
|
+ if (!dev->active_data_lanes)
|
|
+ dev->active_data_lanes = dev->max_data_lanes;
|
|
+ if (dev->active_data_lanes > dev->max_data_lanes) {
|
|
+ unicam_err(dev, "Device has requested %u data lanes, which is >%u configured in DT\n",
|
|
+ dev->active_data_lanes,
|
|
+ dev->max_data_lanes);
|
|
+ ret = -EINVAL;
|
|
+ goto err_pm_put;
|
|
+ }
|
|
+ }
|
|
+
|
|
+ unicam_dbg(1, dev, "Running with %u data lanes\n",
|
|
+ dev->active_data_lanes);
|
|
+
|
|
ret = clk_set_rate(dev->clock, 100 * 1000 * 1000);
|
|
if (ret) {
|
|
unicam_err(dev, "failed to set up clock\n");
|