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drm/i915/display/panel: Make WARN* drm specific where drm_priv ptr is available

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drm specific WARN* calls include device information in the
backtrace, so we know what device the warnings originate from.

Covert all the calls of WARN* with device specific drm_WARN*
variants in functions where drm_i915_private struct pointer is readily
available.

The conversion was done automatically with below coccinelle semantic
patch.

@rule1@
identifier func, T;
@@
func(...) {
...
struct drm_i915_private *T = ...;
<+...
(
-WARN(
+drm_WARN(&T->drm,
...)
|
-WARN_ON(
+drm_WARN_ON(&T->drm,
...)
|
-WARN_ONCE(
+drm_WARN_ONCE(&T->drm,
...)
|
-WARN_ON_ONCE(
+drm_WARN_ON_ONCE(&T->drm,
...)
)
...+>
}

@rule2@
identifier func, T;
@@
func(struct drm_i915_private *T,...) {
<+...
(
-WARN(
+drm_WARN(&T->drm,
...)
|
-WARN_ON(
+drm_WARN_ON(&T->drm,
...)
|
-WARN_ONCE(
+drm_WARN_ONCE(&T->drm,
...)
|
-WARN_ON_ONCE(
+drm_WARN_ON_ONCE(&T->drm,
...)
)
...+>
}

Signed-off-by: Pankaj Bharadiya <pankaj.laxminarayan.bharadiya@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200128181603.27767-16-pankaj.laxminarayan.bharadiya@intel.com
This commit is contained in:
Pankaj Bharadiya 2020-01-28 23:45:57 +05:30 committed by Jani Nikula
parent b0b2ed0c63
commit 48522d3eed
1 changed files with 10 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
drivers/gpu/drm/i915/display/intel_panel.c
View File

@ -423,7 +423,8 @@ void intel_gmch_panel_fitting(struct intel_crtc *intel_crtc,
}
break;
default:
WARN(1, "bad panel fit mode: %d\n", fitting_mode);
drm_WARN(&dev_priv->drm, 1, "bad panel fit mode: %d\n",
fitting_mode);
return;
}
@ -520,7 +521,7 @@ static u32 intel_panel_compute_brightness(struct intel_connector *connector,
struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
struct intel_panel *panel = &connector->panel;
WARN_ON(panel->backlight.max == 0);
drm_WARN_ON(&dev_priv->drm, panel->backlight.max == 0);
if (i915_modparams.invert_brightness < 0)
return val;
@ -569,7 +570,7 @@ static u32 i9xx_get_backlight(struct intel_connector *connector)
static u32 _vlv_get_backlight(struct drm_i915_private *dev_priv, enum pipe pipe)
{
if (WARN_ON(pipe != PIPE_A && pipe != PIPE_B))
if (drm_WARN_ON(&dev_priv->drm, pipe != PIPE_A && pipe != PIPE_B))
return 0;
return intel_de_read(dev_priv, VLV_BLC_PWM_CTL(pipe)) & BACKLIGHT_DUTY_CYCLE_MASK;
@ -627,7 +628,7 @@ static void i9xx_set_backlight(const struct drm_connector_state *conn_state, u32
struct intel_panel *panel = &connector->panel;
u32 tmp, mask;
WARN_ON(panel->backlight.max == 0);
drm_WARN_ON(&dev_priv->drm, panel->backlight.max == 0);
if (panel->backlight.combination_mode) {
u8 lbpc;
@ -711,7 +712,7 @@ void intel_panel_set_backlight_acpi(const struct drm_connector_state *conn_state
mutex_lock(&dev_priv->backlight_lock);
WARN_ON(panel->backlight.max == 0);
drm_WARN_ON(&dev_priv->drm, panel->backlight.max == 0);
hw_level = clamp_user_to_hw(connector, user_level, user_max);
panel->backlight.level = hw_level;
@ -1256,7 +1257,7 @@ static void intel_panel_set_backlight(const struct drm_connector_state *conn_sta
mutex_lock(&dev_priv->backlight_lock);
WARN_ON(panel->backlight.max == 0);
drm_WARN_ON(&dev_priv->drm, panel->backlight.max == 0);
hw_level = scale_user_to_hw(connector, user_level, user_max);
panel->backlight.level = hw_level;
@ -1565,7 +1566,7 @@ static u32 get_backlight_min_vbt(struct intel_connector *connector)
struct intel_panel *panel = &connector->panel;
int min;
WARN_ON(panel->backlight.max == 0);
drm_WARN_ON(&dev_priv->drm, panel->backlight.max == 0);
/*
* XXX: If the vbt value is 255, it makes min equal to max, which leads
@ -1752,7 +1753,7 @@ static int vlv_setup_backlight(struct intel_connector *connector, enum pipe pipe
struct intel_panel *panel = &connector->panel;
u32 ctl, ctl2, val;
if (WARN_ON(pipe != PIPE_A && pipe != PIPE_B))
if (drm_WARN_ON(&dev_priv->drm, pipe != PIPE_A && pipe != PIPE_B))
return -ENODEV;
ctl2 = intel_de_read(dev_priv, VLV_BLC_PWM_CTL2(pipe));
@ -1946,7 +1947,7 @@ int intel_panel_setup_backlight(struct drm_connector *connector, enum pipe pipe)
}
/* ensure intel_panel has been initialized first */
if (WARN_ON(!panel->backlight.setup))
if (drm_WARN_ON(&dev_priv->drm, !panel->backlight.setup))
return -ENODEV;
/* set level and max in panel struct */