drm/i915: don't clobber the pipe param in sanitize_modesetting

commit a9dcf84b14ef4e9a609910367576995e6f32f3dc upstream.

... we need it later on in the function to clean up pipe <-> plane
associations. This regression has been introduced in

commit f47166d2b0001fcb752b40c5a2d4db986dfbea68
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date:   Thu Mar 22 15:00:50 2012 +0000

    drm/i915: Sanitize BIOS debugging bits from PIPECONF

Spotted by staring at debug output of an (as it turns out) totally
unrelated bug.

v2: I've totally failed to do the s/pipe/i/ correctly, spotted by
Chris Wilson.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Eugeni Dodonov <eugeni.dodonov@intel.com>
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index af4ac9260dcc34a7d5413fe730ccceb2a545eac6..79a7de1f31b9c3b680d27d3bcbeb593944ffca28 100644 (file)
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -7617,10 +7617,11 @@ static void intel_sanitize_modesetting(struct drm_device *dev,
 {
        struct drm_i915_private *dev_priv = dev->dev_private;
        u32 reg, val;
+       int i;
 
        /* Clear any frame start delays used for debugging left by the BIOS */
-       for_each_pipe(pipe) {
-               reg = PIPECONF(pipe);
+       for_each_pipe(i) {
+               reg = PIPECONF(i);
                I915_WRITE(reg, I915_READ(reg) & ~PIPECONF_FRAME_START_DELAY_MASK);
        }