When building kernels for a preliminary hardware target, having to add a
kernel command-line option can prove inconvenient. Add a Kconfig option
that changes the default of this option to 1.
Signed-off-by: Josh Triplett <j...@joshtriplett.org>
---
I dropped the indication of the default in the module parameter
documentation, but I could also change it to show the default for the
current kernel via ifdef.
drivers/gpu/drm/Kconfig | 9 +++++++++
drivers/gpu/drm/i915/i915_drv.c | 4 ++--
2 files changed, 11 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/Kconfig b/drivers/gpu/drm/Kconfig
index a7c54c8..35d57ed 100644
--- a/drivers/gpu/drm/Kconfig
+++ b/drivers/gpu/drm/Kconfig
@@ -168,6 +168,15 @@ config DRM_I915_KMS
the driver to bind to PCI devices, which precludes loading things
like intelfb.
+config DRM_I915_PRELIMINARY_HW_SUPPORT
+ bool "Enable preliminary support for prerelease Intel hardware by
default"
+ depends on DRM_I915
+ help
+ Choose this option if you have prerelease Intel hardware and want the
+ i915 driver to support it by default. You can enable such support at
+ runtime with the module option i915.preliminary_hw_support=1; this
+ option changes the default for that module option.
+
config DRM_MGA
tristate "Matrox g200/g400"
depends on DRM && PCI
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 45b3c03..594e06c 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -118,10 +118,10 @@ module_param_named(i915_enable_ppgtt, i915_enable_ppgtt,
int, 0600);
MODULE_PARM_DESC(i915_enable_ppgtt,
"Enable PPGTT (default: true)");
-unsigned int i915_preliminary_hw_support __read_mostly = 0;
+unsigned int i915_preliminary_hw_support __read_mostly =
IS_ENABLED(CONFIG_DRM_I915_PRELIMINARY_HW_SUPPORT);
module_param_named(preliminary_hw_support, i915_preliminary_hw_support, int,
0600);
MODULE_PARM_DESC(preliminary_hw_support,
- "Enable preliminary hardware support. (default: false)");
+ "Enable preliminary hardware support.");
int i915_disable_power_well __read_mostly = 1;
module_param_named(disable_power_well, i915_disable_power_well, int, 0600);
--
1.8.4.rc2
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