From 373d1f96167aa075c4021de22382eb7d021e2c4a Mon Sep 17 00:00:00 2001
From: Jani Nikula <jani.nikula@intel.com>
Date: Tue, 11 Feb 2020 18:28:01 +0200
Subject: drm/i915: register vga switcheroo later, unregister earlier
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Git-commit: 46edcdbdb6d885971b7b49a040053bd23f331f2c
Patch-mainline: v5.7-rc1
References: jsc#SLE-12680, jsc#SLE-12880, jsc#SLE-12882, jsc#SLE-12883, jsc#SLE-13496, jsc#SLE-15322
Move vga switcheroo and dsm handler register later in
i915_driver_register(), and unregister in i915_driver_unregister(). The
dsm handler unregister is a nop, and is only added for completeness.
My unsubstantiated suspicion is that the vga switcheroo state change
would not work as early as we register the hooks currently. In any case
exposing the interfaces to the world only after we've got everything set
up seems prudent.
Also replace the error handling in vga switcheroo register with a simple
error message. This is done at the same time due to lack of error
propagation from i915_driver_register().
Cc: Lukas Wunner <lukas@wunner.de>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Acked-by: Lukas Wunner <lukas@wunner.de>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200211162802.16180-1-jani.nikula@intel.com
Signed-off-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/i915/i915_drv.c | 19 +++++++++----------
1 file changed, 9 insertions(+), 10 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 9099e6506bdc..4e1a096033e5 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -293,12 +293,6 @@ static int i915_driver_modeset_probe(struct drm_i915_private *i915)
if (ret)
goto out;
- intel_register_dsm_handler();
-
- ret = i915_switcheroo_register(i915);
- if (ret)
- goto cleanup_vga_client;
-
intel_power_domains_init_hw(i915, false);
intel_csr_ucode_init(i915);
@@ -346,8 +340,6 @@ static int i915_driver_modeset_probe(struct drm_i915_private *i915)
cleanup_csr:
intel_csr_ucode_fini(i915);
intel_power_domains_driver_remove(i915);
- i915_switcheroo_unregister(i915);
-cleanup_vga_client:
intel_vga_unregister(i915);
out:
return ret;
@@ -361,8 +353,6 @@ static void i915_driver_modeset_remove(struct drm_i915_private *i915)
intel_bios_driver_remove(i915);
- i915_switcheroo_unregister(i915);
-
intel_vga_unregister(i915);
intel_csr_ucode_fini(i915);
@@ -1367,6 +1357,11 @@ static void i915_driver_register(struct drm_i915_private *dev_priv)
intel_power_domains_enable(dev_priv);
intel_runtime_pm_enable(&dev_priv->runtime_pm);
+
+ intel_register_dsm_handler();
+
+ if (i915_switcheroo_register(dev_priv))
+ drm_err(&dev_priv->drm, "Failed to register vga switcheroo!\n");
}
/**
@@ -1375,6 +1370,10 @@ static void i915_driver_register(struct drm_i915_private *dev_priv)
*/
static void i915_driver_unregister(struct drm_i915_private *dev_priv)
{
+ i915_switcheroo_unregister(dev_priv);
+
+ intel_unregister_dsm_handler();
+
intel_runtime_pm_disable(&dev_priv->runtime_pm);
intel_power_domains_disable(dev_priv);
--
2.28.0