44 lines
1.3 KiB
Diff
44 lines
1.3 KiB
Diff
From b14001459c04ec0d4a99c1a422077fbce5a0aebc Mon Sep 17 00:00:00 2001
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From: Dom Cobley <popcornmix@gmail.com>
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Date: Mon, 5 Jul 2021 11:43:12 +0100
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Subject: [PATCH] vc4/drv: Only notify firmware of display done with
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kms
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fkms driver still wants firmware display to be active
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Signed-off-by: Dom Cobley <popcornmix@gmail.com>
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---
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drivers/gpu/drm/vc4/vc4_drv.c | 14 +++++++++++++-
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1 file changed, 13 insertions(+), 1 deletion(-)
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--- a/drivers/gpu/drm/vc4/vc4_drv.c
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+++ b/drivers/gpu/drm/vc4/vc4_drv.c
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@@ -258,6 +258,18 @@ const struct of_device_id vc4_dma_range_
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{}
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};
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+/*
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+ * we need this helper function for determining presence of fkms
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+ * before it's been bound
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+ */
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+static bool firmware_kms(void)
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+{
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+ return of_device_is_available(of_find_compatible_node(NULL, NULL,
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+ "raspberrypi,rpi-firmware-kms")) ||
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+ of_device_is_available(of_find_compatible_node(NULL, NULL,
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+ "raspberrypi,rpi-firmware-kms-2711"));
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+}
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+
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static int vc4_drm_bind(struct device *dev)
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{
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struct platform_device *pdev = to_platform_device(dev);
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@@ -318,7 +330,7 @@ static int vc4_drm_bind(struct device *d
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drm_fb_helper_remove_conflicting_framebuffers(NULL, "vc4drmfb", false);
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- if (vc4->firmware) {
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+ if (vc4->firmware && !firmware_kms()) {
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ret = rpi_firmware_property(vc4->firmware,
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RPI_FIRMWARE_NOTIFY_DISPLAY_DONE,
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NULL, 0);
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