openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

drm/i915: fixup sbi_read/write locking 

commit 09153000b8
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date:   Wed Dec 12 14:06:44 2012 +0100

    drm/i915: rework locking for intel_dpio|sbi_read|write

reworked the locking around sbi_read/write functions for 3.8-fixes.
But

commit dde86e2db5
Author: Paulo Zanoni <paulo.r.zanoni@intel.com>
Date:   Sat Dec 1 12:04:25 2012 -0200

    drm/i915: add lpt_init_pch_refcl

Added new use-cases in the -next tree which has not been updated in
the merge. Fix it up.

Reported-by: Ben Widawsky <ben@bwidawsk.net>
Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
Tested-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Daniel Vetter 2013-01-22 15:33:27 +01:00
parent 7b9f35a6dd
commit c00db24639
1 changed files with 4 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/gpu/drm/i915/intel_display.c
View File

@ -4873,6 +4873,8 @@ static void lpt_init_pch_refclk(struct drm_device *dev)
if (!has_vga)
return;
mutex_lock(&dev_priv->dpio_lock);
/* XXX: Rip out SDV support once Haswell ships for real. */
if (IS_HASWELL(dev) && (dev->pci_device & 0xFF00) == 0x0C00)
is_sdv = true;
@ -5015,6 +5017,8 @@ static void lpt_init_pch_refclk(struct drm_device *dev)
tmp = intel_sbi_read(dev_priv, SBI_DBUFF0, SBI_ICLK);
tmp |= SBI_DBUFF0_ENABLE;
intel_sbi_write(dev_priv, SBI_DBUFF0, tmp, SBI_ICLK);
mutex_unlock(&dev_priv->dpio_lock);
}
/*