This is a note to let you know that I've just added the patch titled drm/vc4: txp: Properly set the possible_crtcs mask to the 5.10-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: drm-vc4-txp-properly-set-the-possible_crtcs-mask.patch and it can be found in the queue-5.10 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From bf6de8e61509f3c957d7f75f017b18d40a18a950 Mon Sep 17 00:00:00 2001 From: Maxime Ripard <maxime@xxxxxxxxxx> Date: Fri, 7 May 2021 17:05:04 +0200 Subject: drm/vc4: txp: Properly set the possible_crtcs mask From: Maxime Ripard <maxime@xxxxxxxxxx> commit bf6de8e61509f3c957d7f75f017b18d40a18a950 upstream. The current code does a binary OR on the possible_crtcs variable of the TXP encoder, while we want to set it to that value instead. Cc: <stable@xxxxxxxxxxxxxxx> # v5.9+ Fixes: 39fcb2808376 ("drm/vc4: txp: Turn the TXP into a CRTC of its own") Acked-by: Thomas Zimmermann <tzimmermann@xxxxxxx> Signed-off-by: Maxime Ripard <maxime@xxxxxxxxxx> Link: https://patchwork.freedesktop.org/patch/msgid/20210507150515.257424-2-maxime@xxxxxxxxxx Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/gpu/drm/vc4/vc4_txp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/gpu/drm/vc4/vc4_txp.c +++ b/drivers/gpu/drm/vc4/vc4_txp.c @@ -503,7 +503,7 @@ static int vc4_txp_bind(struct device *d return ret; encoder = &txp->connector.encoder; - encoder->possible_crtcs |= drm_crtc_mask(crtc); + encoder->possible_crtcs = drm_crtc_mask(crtc); ret = devm_request_irq(dev, irq, vc4_txp_interrupt, 0, dev_name(dev), txp); Patches currently in stable-queue which might be from maxime@xxxxxxxxxx are queue-5.10/drm-vc4-fix-clock-source-for-vec-pixelvalve-on-bcm27.patch queue-5.10/drm-vc4-fix-argument-ordering-in-vc4_crtc_get_margin.patch queue-5.10/drm-vc4-crtc-skip-the-txp.patch queue-5.10/drm-vc4-hdmi-prevent-clock-unbalance.patch queue-5.10/drm-vc4-hdmi-fix-pm-reference-leak-in-vc4_hdmi_encod.patch queue-5.10/drm-vc4-txp-properly-set-the-possible_crtcs-mask.patch