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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>
38 lines
1.2 KiB
Diff
38 lines
1.2 KiB
Diff
From 8fb908fe3f80d6bbc0a7f5e7fe14ababe7f87f83 Mon Sep 17 00:00:00 2001
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From: Maxime Ripard <maxime@cerno.tech>
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Date: Mon, 11 Jan 2021 15:23:06 +0100
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Subject: [PATCH] drm/vc4: hdmi: Don't register the CEC adapter if
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there's no interrupts
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We introduced the BCM2711 support to the vc4 HDMI controller with 5.10,
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but this was lacking any of the interrupts of the CEC controller so we
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have to deal with the backward compatibility.
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Do so by simply ignoring the CEC setup if the DT doesn't have the
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interrupts property.
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Reviewed-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
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Signed-off-by: Maxime Ripard <maxime@cerno.tech>
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---
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drivers/gpu/drm/vc4/vc4_hdmi.c | 6 ++++++
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1 file changed, 6 insertions(+)
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--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
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+++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
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@@ -1784,9 +1784,15 @@ static int vc4_hdmi_cec_init(struct vc4_
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{
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struct cec_connector_info conn_info;
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struct platform_device *pdev = vc4_hdmi->pdev;
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+ struct device *dev = &pdev->dev;
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u32 value;
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int ret;
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+ if (!of_find_property(dev->of_node, "interrupts", NULL)) {
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+ dev_warn(dev, "'interrupts' DT property is missing, no CEC\n");
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+ return 0;
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+ }
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+
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vc4_hdmi->cec_adap = cec_allocate_adapter(&vc4_hdmi_cec_adap_ops,
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vc4_hdmi, "vc4",
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CEC_CAP_DEFAULTS |
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