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88 lines
3 KiB
Diff
88 lines
3 KiB
Diff
From ee0528fe0cbd15bfa0583543879e4753e4104409 Mon Sep 17 00:00:00 2001
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From: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
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Date: Wed, 27 Sep 2023 16:00:39 +0300
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Subject: [PATCH] media: rp1: cfe: Fix width & height in cfe_start_channel()
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The logic for handling width & height in cfe_start_channel() is somewhat
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odd and, afaics, broken. The code reads:
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bool start_fe = is_fe_enabled(cfe) &&
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test_all_nodes(cfe, NODE_ENABLED, NODE_STREAMING);
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if (start_fe || is_image_output_node(node)) {
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width = node->fmt.fmt.pix.width;
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height = node->fmt.fmt.pix.height;
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}
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cfe_start_channel() is called for all video nodes that will be used. So
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this means that if, say, fe_stats is enabled as the last node, start_fe
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will be true, and width and height will be taken from fe_stats' node.
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The width and height will thus contain garbage, which then gets
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programmed to the csi2 registers.
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It seems that this often still works fine, though, probably if the width
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& height are large enough.
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Drop the above code, and instead get the width & height from the csi2
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subdev's sink pad for the csi2 channel that is used. For metadata the
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width & height will be 0 as before.
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Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
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---
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drivers/media/platform/raspberrypi/rp1_cfe/cfe.c | 16 ++++++++++------
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1 file changed, 10 insertions(+), 6 deletions(-)
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--- a/drivers/media/platform/raspberrypi/rp1_cfe/cfe.c
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+++ b/drivers/media/platform/raspberrypi/rp1_cfe/cfe.c
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@@ -763,20 +763,16 @@ static void cfe_start_channel(struct cfe
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struct v4l2_mbus_framefmt *source_fmt;
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const struct cfe_fmt *fmt;
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unsigned long flags;
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- unsigned int width = 0, height = 0;
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bool start_fe = is_fe_enabled(cfe) &&
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test_all_nodes(cfe, NODE_ENABLED, NODE_STREAMING);
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cfe_dbg("%s: [%s]\n", __func__, node_desc[node->id].name);
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- if (start_fe || is_image_output_node(node)) {
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- width = node->fmt.fmt.pix.width;
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- height = node->fmt.fmt.pix.height;
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- }
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-
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state = v4l2_subdev_lock_and_get_active_state(&cfe->csi2.sd);
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if (start_fe) {
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+ unsigned int width, height;
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+
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WARN_ON(!is_fe_enabled(cfe));
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cfe_dbg("%s: %s using csi2 channel %d\n",
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__func__, node_desc[FE_OUT0].name,
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@@ -785,6 +781,9 @@ static void cfe_start_channel(struct cfe
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source_fmt = v4l2_subdev_get_pad_format(&cfe->csi2.sd, state, cfe->fe_csi2_channel);
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fmt = find_format_by_code(source_fmt->code);
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+ width = source_fmt->width;
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+ height = source_fmt->height;
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+
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/*
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* Start the associated CSI2 Channel as well.
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*
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@@ -800,6 +799,8 @@ static void cfe_start_channel(struct cfe
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}
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if (is_csi2_node(node)) {
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+ unsigned int width = 0, height = 0;
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+
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u32 mode = CSI2_MODE_NORMAL;
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source_fmt = v4l2_subdev_get_pad_format(&cfe->csi2.sd, state,
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@@ -807,6 +808,9 @@ static void cfe_start_channel(struct cfe
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fmt = find_format_by_code(source_fmt->code);
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if (is_image_output_node(node)) {
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+ width = source_fmt->width;
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+ height = source_fmt->height;
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+
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if (node->fmt.fmt.pix.pixelformat ==
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fmt->remap[CFE_REMAP_16BIT])
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mode = CSI2_MODE_REMAP;
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