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Subject[PATCH 4.9 48/63] drm/i915: Fix enum pipe vs. enum transcoder for the PCH transcoder
Date
4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: "Ville Syrjälä" <ville.syrjala@linux.intel.com>

commit 41c32e5da3ff3922490341a988b2a3ae46d0b6a8 upstream.

Use enum pipe for PCH transcoders also in the FIFO underrun code.

Fixes the following new sparse warnings:
intel_fifo_underrun.c:340:49: warning: mixing different enum types
intel_fifo_underrun.c:340:49: int enum pipe versus
intel_fifo_underrun.c:340:49: int enum transcoder
intel_fifo_underrun.c:344:49: warning: mixing different enum types
intel_fifo_underrun.c:344:49: int enum pipe versus
intel_fifo_underrun.c:344:49: int enum transcoder
intel_fifo_underrun.c:397:57: warning: mixing different enum types
intel_fifo_underrun.c:397:57: int enum pipe versus
intel_fifo_underrun.c:397:57: int enum transcoder
intel_fifo_underrun.c:398:17: warning: mixing different enum types
intel_fifo_underrun.c:398:17: int enum pipe versus
intel_fifo_underrun.c:398:17: int enum transcoder

Cc: Matthias Kaehlcke <mka@chromium.org>
Fixes: a21960339c8c ("drm/i915: Consistently use enum pipe for PCH transcoders")
Signed-off-by: "Ville Syrjälä" <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20170901143123.7590-3-ville.syrjala@linux.intel.com
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
[nc: Backport to 4.9, drop unneeded hunks]
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/gpu/drm/i915/intel_fifo_underrun.c | 20 ++++++++++----------
1 file changed, 10 insertions(+), 10 deletions(-)

--- a/drivers/gpu/drm/i915/intel_fifo_underrun.c
+++ b/drivers/gpu/drm/i915/intel_fifo_underrun.c
@@ -185,11 +185,11 @@ static void broadwell_set_fifo_underrun_
}

static void ibx_set_fifo_underrun_reporting(struct drm_device *dev,
- enum transcoder pch_transcoder,
+ enum pipe pch_transcoder,
bool enable)
{
struct drm_i915_private *dev_priv = to_i915(dev);
- uint32_t bit = (pch_transcoder == TRANSCODER_A) ?
+ uint32_t bit = (pch_transcoder == PIPE_A) ?
SDE_TRANSA_FIFO_UNDER : SDE_TRANSB_FIFO_UNDER;

if (enable)
@@ -201,7 +201,7 @@ static void ibx_set_fifo_underrun_report
static void cpt_check_pch_fifo_underruns(struct intel_crtc *crtc)
{
struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
- enum transcoder pch_transcoder = (enum transcoder) crtc->pipe;
+ enum pipe pch_transcoder = crtc->pipe;
uint32_t serr_int = I915_READ(SERR_INT);

assert_spin_locked(&dev_priv->irq_lock);
@@ -212,12 +212,12 @@ static void cpt_check_pch_fifo_underruns
I915_WRITE(SERR_INT, SERR_INT_TRANS_FIFO_UNDERRUN(pch_transcoder));
POSTING_READ(SERR_INT);

- DRM_ERROR("pch fifo underrun on pch transcoder %s\n",
- transcoder_name(pch_transcoder));
+ DRM_ERROR("pch fifo underrun on pch transcoder %c\n",
+ pipe_name(pch_transcoder));
}

static void cpt_set_fifo_underrun_reporting(struct drm_device *dev,
- enum transcoder pch_transcoder,
+ enum pipe pch_transcoder,
bool enable, bool old)
{
struct drm_i915_private *dev_priv = to_i915(dev);
@@ -235,8 +235,8 @@ static void cpt_set_fifo_underrun_report

if (old && I915_READ(SERR_INT) &
SERR_INT_TRANS_FIFO_UNDERRUN(pch_transcoder)) {
- DRM_ERROR("uncleared pch fifo underrun on pch transcoder %s\n",
- transcoder_name(pch_transcoder));
+ DRM_ERROR("uncleared pch fifo underrun on pch transcoder %c\n",
+ pipe_name(pch_transcoder));
}
}
}
@@ -388,8 +388,8 @@ void intel_pch_fifo_underrun_irq_handler
{
if (intel_set_pch_fifo_underrun_reporting(dev_priv, pch_transcoder,
false))
- DRM_ERROR("PCH transcoder %s FIFO underrun\n",
- transcoder_name(pch_transcoder));
+ DRM_ERROR("PCH transcoder %c FIFO underrun\n",
+ pipe_name(pch_transcoder));
}

/**

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