diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-5.4/950-0795-media-v4l2-subdev-Introduce-get-set-_mbus_config-pad.patch')
-rw-r--r-- | target/linux/bcm27xx/patches-5.4/950-0795-media-v4l2-subdev-Introduce-get-set-_mbus_config-pad.patch | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-5.4/950-0795-media-v4l2-subdev-Introduce-get-set-_mbus_config-pad.patch b/target/linux/bcm27xx/patches-5.4/950-0795-media-v4l2-subdev-Introduce-get-set-_mbus_config-pad.patch new file mode 100644 index 0000000000..910828421b --- /dev/null +++ b/target/linux/bcm27xx/patches-5.4/950-0795-media-v4l2-subdev-Introduce-get-set-_mbus_config-pad.patch @@ -0,0 +1,63 @@ +From 487203abdef24b7d3cdd110f1b1e699fd22aa02c Mon Sep 17 00:00:00 2001 +From: Jacopo Mondi <jacopo+renesas@jmondi.org> +Date: Tue, 16 Jun 2020 16:12:36 +0200 +Subject: [PATCH]_mbus_config + pad ops + +Upstream https://patchwork.linuxtv.org/patch/64669/ + +Introduce two new pad operations to allow retrieving and configuring the +media bus parameters on a subdevice pad. + +The newly introduced operations aims to replace the s/g_mbus_config video +operations, which have been on their way for deprecation since a long +time. + +Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org> +--- + include/media/v4l2-subdev.h | 27 +++++++++++++++++++++++++++ + 1 file changed, 27 insertions(+) + +--- a/include/media/v4l2-subdev.h ++++ b/include/media/v4l2-subdev.h +@@ -670,6 +670,29 @@ struct v4l2_subdev_pad_config { + * + * @set_frame_desc: set the low level media bus frame parameters, @fd array + * may be adjusted by the subdev driver to device capabilities. ++ * ++ * @get_mbus_config: get the media bus configuration of a remote sub-device. ++ * The media bus configuration is usually retrieved from the ++ * firmware interface at sub-device probe time, immediately ++ * applied to the hardware and eventually adjusted by the ++ * driver. Remote sub-devices (usually video receivers) shall ++ * use this operation to query the transmitting end bus ++ * configuration in order to adjust their own one accordingly. ++ * Callers should make sure they get the most up-to-date as ++ * possible configuration from the remote end, likely calling ++ * this operation as close as possible to stream on time. The ++ * operation shall fail if the pad index it has been called on ++ * is not valid. ++ * ++ * @set_mbus_config: set the media bus configuration of a remote sub-device. ++ * This operations is intended to allow, in combination with ++ * the get_mbus_config operation, the negotiation of media bus ++ * configuration parameters between media sub-devices. The ++ * operation shall not fail if the requested configuration is ++ * not supported, but the driver shall update the content of ++ * the %config argument to reflect what has been actually ++ * applied to the hardware. The operation shall fail if the ++ * pad index it has been called on is not valid. + */ + struct v4l2_subdev_pad_ops { + int (*init_cfg)(struct v4l2_subdev *sd, +@@ -710,6 +733,10 @@ struct v4l2_subdev_pad_ops { + struct v4l2_mbus_frame_desc *fd); + int (*set_frame_desc)(struct v4l2_subdev *sd, unsigned int pad, + struct v4l2_mbus_frame_desc *fd); ++ int (*get_mbus_config)(struct v4l2_subdev *sd, unsigned int pad, ++ struct v4l2_mbus_config *config); ++ int (*set_mbus_config)(struct v4l2_subdev *sd, unsigned int pad, ++ struct v4l2_mbus_config *config); + }; + + /** |