linux-kernel - [PATCH] drm/i915: set i915 driver probe to asynchronous

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Date:   Wed, 19 Sep 2018 15:37:12 +0800
From:   ning.a.zhang@...el.com
To:     jani.nikula@...ux.intel.com, joonas.lahtinen@...ux.intel.com,
        rodrigo.vivi@...el.com, airlied@...ux.ie
Cc:     intel-gfx@...ts.freedesktop.org, dri-devel@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org, Zhang Ning <ning.a.zhang@...el.com>
Subject: [PATCH] drm/i915: set i915 driver probe to asynchronous

From: Zhang Ning <ning.a.zhang@...el.com>

when i915 is built in module, and system has built-in display, eg. eDP,
i915 will detect and active it during driver probe. it will take long
time.

set i915 driver probe to asynchrous can save kernel initial time.

Signed-off-by: Zhang Ning <ning.a.zhang@...el.com>
---
 drivers/gpu/drm/i915/i915_pci.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/i915/i915_pci.c b/drivers/gpu/drm/i915/i915_pci.c
index 6a4d1388ad2d..0f57d71d0abb 100644
--- a/drivers/gpu/drm/i915/i915_pci.c
+++ b/drivers/gpu/drm/i915/i915_pci.c
@@ -738,6 +738,7 @@ static struct pci_driver i915_pci_driver = {
 	.probe = i915_pci_probe,
 	.remove = i915_pci_remove,
 	.driver.pm = &i915_pm_ops,
+	.driver.probe_type = PROBE_PREFER_ASYNCHRONOUS,
 };
 
 static int __init i915_init(void)
-- 
2.18.0