[PATCH v2] drm/i915: Consistently use enum pipe for PCH transcoders

From: Matthias Kaehlcke
Date: Mon Jul 17 2017 - 14:14:53 EST

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The current code uses in some instances enum transcoder for PCH
transcoders and enum pipe in others. This is error prone and clang
raises warnings like this:

drivers/gpu/drm/i915/intel_dp.c:3546:51: warning: implicit conversion
from enumeration type 'enum pipe' to different enumeration type
'enum transcoder' [-Wenum-conversion]
intel_set_pch_fifo_underrun_reporting(dev_priv, PIPE_A, false);

Consistently use the type enum pipe for PCH transcoders.

Signed-off-by: Matthias Kaehlcke <mka@xxxxxxxxxxxx>
---
Changes in v2:
- rebased on drm-intel/drm-intel-next-queued

drivers/gpu/drm/i915/i915_irq.c | 10 +++++-----
drivers/gpu/drm/i915/intel_display.c | 24 ++++++++++--------------
drivers/gpu/drm/i915/intel_drv.h | 6 +++---
drivers/gpu/drm/i915/intel_fifo_underrun.c | 6 +++---
4 files changed, 21 insertions(+), 25 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index 1d33cea01a1b..0b6f310101ee 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -2086,10 +2086,10 @@ static void ibx_irq_handler(struct drm_i915_private *dev_priv, u32 pch_iir)
DRM_DEBUG_DRIVER("PCH transcoder CRC error interrupt\n");

if (pch_iir & SDE_TRANSA_FIFO_UNDER)
- intel_pch_fifo_underrun_irq_handler(dev_priv, TRANSCODER_A);
+ intel_pch_fifo_underrun_irq_handler(dev_priv, PIPE_A);

if (pch_iir & SDE_TRANSB_FIFO_UNDER)
- intel_pch_fifo_underrun_irq_handler(dev_priv, TRANSCODER_B);
+ intel_pch_fifo_underrun_irq_handler(dev_priv, PIPE_B);
}

static void ivb_err_int_handler(struct drm_i915_private *dev_priv)
@@ -2123,13 +2123,13 @@ static void cpt_serr_int_handler(struct drm_i915_private *dev_priv)
DRM_ERROR("PCH poison interrupt\n");

if (serr_int & SERR_INT_TRANS_A_FIFO_UNDERRUN)
- intel_pch_fifo_underrun_irq_handler(dev_priv, TRANSCODER_A);
+ intel_pch_fifo_underrun_irq_handler(dev_priv, PIPE_A);

if (serr_int & SERR_INT_TRANS_B_FIFO_UNDERRUN)
- intel_pch_fifo_underrun_irq_handler(dev_priv, TRANSCODER_B);
+ intel_pch_fifo_underrun_irq_handler(dev_priv, PIPE_B);

if (serr_int & SERR_INT_TRANS_C_FIFO_UNDERRUN)
- intel_pch_fifo_underrun_irq_handler(dev_priv, TRANSCODER_C);
+ intel_pch_fifo_underrun_irq_handler(dev_priv, PIPE_C);

I915_WRITE(SERR_INT, serr_int);
}
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index bb9c9c3c391f..5c7054c3be0e 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -1777,7 +1777,7 @@ static void lpt_enable_pch_transcoder(struct drm_i915_private *dev_priv,

/* FDI must be feeding us bits for PCH ports */
assert_fdi_tx_enabled(dev_priv, (enum pipe) cpu_transcoder);
- assert_fdi_rx_enabled(dev_priv, TRANSCODER_A);
+ assert_fdi_rx_enabled(dev_priv, PIPE_A);

/* Workaround: set timing override bit. */
val = I915_READ(TRANS_CHICKEN2(PIPE_A));
@@ -1853,16 +1853,16 @@ void lpt_disable_pch_transcoder(struct drm_i915_private *dev_priv)
I915_WRITE(TRANS_CHICKEN2(PIPE_A), val);
}

-enum transcoder intel_crtc_pch_transcoder(struct intel_crtc *crtc)
+enum pipe intel_crtc_pch_transcoder(struct intel_crtc *crtc)
{
struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);

WARN_ON(!crtc->config->has_pch_encoder);

if (HAS_PCH_LPT(dev_priv))
- return TRANSCODER_A;
+ return PIPE_A;
else
- return (enum transcoder) crtc->pipe;
+ return crtc->pipe;
}

/**
@@ -1901,7 +1901,7 @@ static void intel_enable_pipe(struct intel_crtc *crtc)
if (crtc->config->has_pch_encoder) {
/* if driving the PCH, we need FDI enabled */
assert_fdi_rx_pll_enabled(dev_priv,
- (enum pipe) intel_crtc_pch_transcoder(crtc));
+ intel_crtc_pch_transcoder(crtc));
assert_fdi_tx_pll_enabled(dev_priv,
(enum pipe) cpu_transcoder);
}
@@ -4579,7 +4579,7 @@ static void lpt_pch_enable(const struct intel_crtc_state *crtc_state)
struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
enum transcoder cpu_transcoder = crtc_state->cpu_transcoder;

- assert_pch_transcoder_disabled(dev_priv, TRANSCODER_A);
+ assert_pch_transcoder_disabled(dev_priv, PIPE_A);

lpt_program_iclkip(crtc);

@ -5347,8 +5347,7 @@ static void haswell_crtc_enable(struct intel_crtc_state *pipe_config,
return;

if (intel_crtc->config->has_pch_encoder)
- intel_set_pch_fifo_underrun_reporting(dev_priv, TRANSCODER_A,
- false);
+ intel_set_pch_fifo_underrun_reporting(dev_priv, PIPE_A, false);

intel_encoders_pre_pll_enable(crtc, pipe_config, old_state);

@@ -5433,8 +5432,7 @@ static void haswell_crtc_enable(struct intel_crtc_state *pipe_config,
intel_wait_for_vblank(dev_priv, pipe);
intel_wait_for_vblank(dev_priv, pipe);
intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, true);
- intel_set_pch_fifo_underrun_reporting(dev_priv, TRANSCODER_A,
- true);
+ intel_set_pch_fifo_underrun_reporting(dev_priv, PIPE_A, true);
}

/* If we change the relative order between pipe/planes enabling, we need
@@ -5531,8 +5529,7 @@ static void haswell_crtc_disable(struct intel_crtc_state *old_crtc_state,
enum transcoder cpu_transcoder = intel_crtc->config->cpu_transcoder;

if (intel_crtc->config->has_pch_encoder)
- intel_set_pch_fifo_underrun_reporting(dev_priv, TRANSCODER_A,
- false);
+ intel_set_pch_fifo_underrun_reporting(dev_priv, PIPE_A, false);

intel_encoders_disable(crtc, old_crtc_state, old_state);

@@ -5560,8 +5557,7 @@ static void haswell_crtc_disable(struct intel_crtc_state *old_crtc_state,
intel_encoders_post_disable(crtc, old_crtc_state, old_state);

if (old_crtc_state->has_pch_encoder)
- intel_set_pch_fifo_underrun_reporting(dev_priv, TRANSCODER_A,
- true);
+ intel_set_pch_fifo_underrun_reporting(dev_priv, PIPE_A, true);
}

static void i9xx_pfit_enable(struct intel_crtc *crtc)
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index d17a32437f07..0902d7cb48d9 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -1211,12 +1211,12 @@ hdmi_to_dig_port(struct intel_hdmi *intel_hdmi)
bool intel_set_cpu_fifo_underrun_reporting(struct drm_i915_private *dev_priv,
enum pipe pipe, bool enable);
bool intel_set_pch_fifo_underrun_reporting(struct drm_i915_private *dev_priv,
- enum transcoder pch_transcoder,
+ enum pipe pch_transcoder,
bool enable);
void intel_cpu_fifo_underrun_irq_handler(struct drm_i915_private *dev_priv,
enum pipe pipe);
void intel_pch_fifo_underrun_irq_handler(struct drm_i915_private *dev_priv,
- enum transcoder pch_transcoder);
+ enum pipe pch_transcoder);
void intel_check_cpu_fifo_underruns(struct drm_i915_private *dev_priv);
void intel_check_pch_fifo_underruns(struct drm_i915_private *dev_priv);

@@ -1326,7 +1326,7 @@ void intel_set_cdclk(struct drm_i915_private *dev_priv,
/* intel_display.c */
void i830_enable_pipe(struct drm_i915_private *dev_priv, enum pipe pipe);
void i830_disable_pipe(struct drm_i915_private *dev_priv, enum pipe pipe);
-enum transcoder intel_crtc_pch_transcoder(struct intel_crtc *crtc);
+enum pipe intel_crtc_pch_transcoder(struct intel_crtc *crtc);
void intel_update_rawclk(struct drm_i915_private *dev_priv);
int vlv_get_hpll_vco(struct drm_i915_private *dev_priv);
int vlv_get_cck_clock(struct drm_i915_private *dev_priv,
diff --git a/drivers/gpu/drm/i915/intel_fifo_underrun.c b/drivers/gpu/drm/i915/intel_fifo_underrun.c
index d484862cc7df..5a7cca32c0fa 100644
--- a/drivers/gpu/drm/i915/intel_fifo_underrun.c
+++ b/drivers/gpu/drm/i915/intel_fifo_underrun.c
@@ -313,11 +313,11 @@ bool intel_set_cpu_fifo_underrun_reporting(struct drm_i915_private *dev_priv,
* Returns the previous state of underrun reporting.
*/
bool intel_set_pch_fifo_underrun_reporting(struct drm_i915_private *dev_priv,
- enum transcoder pch_transcoder,
+ enum pipe pch_transcoder,
bool enable)
{
struct intel_crtc *crtc =
- intel_get_crtc_for_pipe(dev_priv, (enum pipe) pch_transcoder);
+ intel_get_crtc_for_pipe(dev_priv, pch_transcoder);
unsigned long flags;
bool old;

@@ -390,7 +390,7 @@ void intel_cpu_fifo_underrun_irq_handler(struct drm_i915_private *dev_priv,
* interrupt to avoid an irq storm.
*/
void intel_pch_fifo_underrun_irq_handler(struct drm_i915_private *dev_priv,
- enum transcoder pch_transcoder)
+ enum pipe pch_transcoder)
{
if (intel_set_pch_fifo_underrun_reporting(dev_priv, pch_transcoder,
false)) {
--
2.13.2.932.g7449e964c-goog

Next message: Arvind Yadav: "[PATCH 11/11] net: brcmfmac: constify pci_device_id."
Previous message: Arvind Yadav: "[PATCH 10/11] net: qtnfmac: constify pci_device_id."
Next in thread: Daniel Vetter: "Re: [PATCH v2] drm/i915: Consistently use enum pipe for PCH transcoders"
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