From 8299d1f057439f94c6a4412e2e5c5082b82a30c9 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=C3=81lvaro=20Fern=C3=A1ndez=20Rojas?= Date: Sat, 21 Aug 2021 10:54:34 +0200 Subject: bcm27xx: add kernel 5.10 support MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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 --- ...35-unicam-change-minimum-number-of-vb2_qu.patch | 28 ++++++++++++++++++++++ 1 file changed, 28 insertions(+) create mode 100644 target/linux/bcm27xx/patches-5.10/950-0254-media-bcm2835-unicam-change-minimum-number-of-vb2_qu.patch (limited to 'target/linux/bcm27xx/patches-5.10/950-0254-media-bcm2835-unicam-change-minimum-number-of-vb2_qu.patch') diff --git a/target/linux/bcm27xx/patches-5.10/950-0254-media-bcm2835-unicam-change-minimum-number-of-vb2_qu.patch b/target/linux/bcm27xx/patches-5.10/950-0254-media-bcm2835-unicam-change-minimum-number-of-vb2_qu.patch new file mode 100644 index 0000000000..6421bcfc76 --- /dev/null +++ b/target/linux/bcm27xx/patches-5.10/950-0254-media-bcm2835-unicam-change-minimum-number-of-vb2_qu.patch @@ -0,0 +1,28 @@ +From f858ff156427e99d5abeebc80c666caab33b3637 Mon Sep 17 00:00:00 2001 +From: David Plowman +Date: Thu, 28 May 2020 11:09:48 +0100 +Subject: [PATCH] media: bcm2835-unicam: change minimum number of + vb2_queue buffers to 1 + +Since the unicam driver was modified to write to a dummy buffer when no +user-supplied buffer is available, it can now write to and return a +buffer even when there's only a single one. Enable this by changing the +min_buffers_needed in the vb2_queue; it will be useful for enabling +still captures without allocating more memory than absolutely necessary. + +Signed-off-by: David Plowman +--- + drivers/media/platform/bcm2835/bcm2835-unicam.c | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +--- a/drivers/media/platform/bcm2835/bcm2835-unicam.c ++++ b/drivers/media/platform/bcm2835/bcm2835-unicam.c +@@ -2404,7 +2404,7 @@ static int register_node(struct unicam_d + q->buf_struct_size = sizeof(struct unicam_buffer); + q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; + q->lock = &node->lock; +- q->min_buffers_needed = 2; ++ q->min_buffers_needed = 1; + q->dev = &unicam->pdev->dev; + + ret = vb2_queue_init(q); -- cgit v1.2.3