The patch below does not apply to the 6.6-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to stable@vger.kernel.org.
To reproduce the conflict and resubmit, you may use the following commands:
git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.6.y git checkout FETCH_HEAD git cherry-pick -x 47b412c1ea77112f1148b4edd71700a388c7c80f # <resolve conflicts, build, test, etc.> git commit -s git send-email --to 'stable@vger.kernel.org' --in-reply-to '2024032728-showplace-outpour-6ee0@gregkh' --subject-prefix 'PATCH 6.6.y' HEAD^..
Possible dependencies:
47b412c1ea77 ("phy: qcom-qmp-combo: fix type-c switch registration") d2d7b8e88023 ("phy: qcom-qmp-combo: fix drm bridge registration") 35921910bbd0 ("phy: qcom: qmp-combo: switch to DRM_AUX_BRIDGE")
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From 47b412c1ea77112f1148b4edd71700a388c7c80f Mon Sep 17 00:00:00 2001 From: Johan Hovold johan+linaro@kernel.org Date: Sat, 17 Feb 2024 16:02:28 +0100 Subject: [PATCH] phy: qcom-qmp-combo: fix type-c switch registration
Due to a long-standing issue in driver core, drivers may not probe defer after having registered child devices to avoid triggering a probe deferral loop (see fbc35b45f9f6 ("Add documentation on meaning of -EPROBE_DEFER")).
Move registration of the typec switch to after looking up clocks and other resources.
Note that PHY creation can in theory also trigger a probe deferral when a 'phy' supply is used. This does not seem to affect the QMP PHY driver but the PHY subsystem should be reworked to address this (i.e. by separating initialisation and registration of the PHY).
Fixes: 2851117f8f42 ("phy: qcom-qmp-combo: Introduce orientation switching") Cc: stable@vger.kernel.org # 6.5 Cc: Bjorn Andersson quic_bjorande@quicinc.com Signed-off-by: Johan Hovold johan+linaro@kernel.org Reviewed-by: Bjorn Andersson andersson@kernel.org Reviewed-by: Dmitry Baryshkov dmitry.baryshkov@linaro.org Acked-by: Vinod Koul vkoul@kernel.org Acked-by: Neil Armstrong neil.armstrong@linaro.org Link: https://lore.kernel.org/r/20240217150228.5788-7-johan+linaro@kernel.org Signed-off-by: Vinod Koul vkoul@kernel.org
diff --git a/drivers/phy/qualcomm/phy-qcom-qmp-combo.c b/drivers/phy/qualcomm/phy-qcom-qmp-combo.c index e19d6a084f10..17c4ad7553a5 100644 --- a/drivers/phy/qualcomm/phy-qcom-qmp-combo.c +++ b/drivers/phy/qualcomm/phy-qcom-qmp-combo.c @@ -3562,10 +3562,6 @@ static int qmp_combo_probe(struct platform_device *pdev) if (ret) return ret;
- ret = qmp_combo_typec_switch_register(qmp); - if (ret) - return ret; - /* Check for legacy binding with child nodes. */ usb_np = of_get_child_by_name(dev->of_node, "usb3-phy"); if (usb_np) { @@ -3585,6 +3581,10 @@ static int qmp_combo_probe(struct platform_device *pdev) if (ret) goto err_node_put;
+ ret = qmp_combo_typec_switch_register(qmp); + if (ret) + goto err_node_put; + ret = drm_aux_bridge_register(dev); if (ret) goto err_node_put;