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42 lines
1.5 KiB
Diff
42 lines
1.5 KiB
Diff
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From 7109030996578e85610f30dc60c04c952e87fb2a Mon Sep 17 00:00:00 2001
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From: Maxime Ripard <maxime@cerno.tech>
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Date: Thu, 25 Feb 2021 14:42:03 +0100
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Subject: [PATCH] drm/vc4: hvs: Make the HVS bind first
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We'll need to have the HVS binding before the HDMI controllers so that
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we can check whether the firmware allows to run in 4kp60. Reorder a bit
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the component list, and document the current constraints we're aware of.
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Acked-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
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Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
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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_drv.c | 11 ++++++++++-
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1 file changed, 10 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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@@ -354,12 +354,21 @@ static const struct component_master_ops
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.unbind = vc4_drm_unbind,
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};
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+/*
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+ * This list determines the binding order of our components, and we have
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+ * a few constraints:
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+ * - The TXP driver needs to be bound before the PixelValves (CRTC)
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+ * but after the HVS to set the possible_crtc field properly
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+ * - The HDMI driver needs to be bound after the HVS so that we can
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+ * lookup the HVS maximum core clock rate and figure out if we
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+ * support 4kp60 or not.
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+ */
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static struct platform_driver *const component_drivers[] = {
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+ &vc4_hvs_driver,
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&vc4_hdmi_driver,
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&vc4_vec_driver,
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&vc4_dpi_driver,
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&vc4_dsi_driver,
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- &vc4_hvs_driver,
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&vc4_txp_driver,
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&vc4_crtc_driver,
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&vc4_firmware_kms_driver,
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