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

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. checkpatch errors/warnings are fixed manually.

@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/20200128181603.27767-19-pankaj.laxminarayan.bharadiya@intel.com

diff --git a/drivers/gpu/drm/i915/display/intel_tc.c b/drivers/gpu/drm/i915/display/intel_tc.c
index 7773169..c47f3a1 100644 (file)
--- a/drivers/gpu/drm/i915/display/intel_tc.c
+++ b/drivers/gpu/drm/i915/display/intel_tc.c
@@ -61,7 +61,7 @@ u32 intel_tc_port_get_lane_mask(struct intel_digital_port *dig_port)
        lane_mask = intel_uncore_read(uncore,
                                      PORT_TX_DFLEXDPSP(dig_port->tc_phy_fia));
 
-       WARN_ON(lane_mask == 0xffffffff);
+       drm_WARN_ON(&i915->drm, lane_mask == 0xffffffff);
 
        lane_mask &= DP_LANE_ASSIGNMENT_MASK(dig_port->tc_phy_fia_idx);
        return lane_mask >> DP_LANE_ASSIGNMENT_SHIFT(dig_port->tc_phy_fia_idx);
@@ -76,7 +76,7 @@ u32 intel_tc_port_get_pin_assignment_mask(struct intel_digital_port *dig_port)
        pin_mask = intel_uncore_read(uncore,
                                     PORT_TX_DFLEXPA1(dig_port->tc_phy_fia));
 
-       WARN_ON(pin_mask == 0xffffffff);
+       drm_WARN_ON(&i915->drm, pin_mask == 0xffffffff);
 
        return (pin_mask & DP_PIN_ASSIGNMENT_MASK(dig_port->tc_phy_fia_idx)) >>
               DP_PIN_ASSIGNMENT_SHIFT(dig_port->tc_phy_fia_idx);
@@ -120,7 +120,8 @@ void intel_tc_port_set_fia_lane_count(struct intel_digital_port *dig_port,
        struct intel_uncore *uncore = &i915->uncore;
        u32 val;
 
-       WARN_ON(lane_reversal && dig_port->tc_mode != TC_PORT_LEGACY);
+       drm_WARN_ON(&i915->drm,
+                   lane_reversal && dig_port->tc_mode != TC_PORT_LEGACY);
 
        val = intel_uncore_read(uncore,
                                PORT_TX_DFLEXDPMLE1(dig_port->tc_phy_fia));
@@ -195,7 +196,7 @@ static u32 tc_port_live_status_mask(struct intel_digital_port *dig_port)
                mask |= BIT(TC_PORT_LEGACY);
 
        /* The sink can be connected only in a single mode. */
-       if (!WARN_ON(hweight32(mask) > 1))
+       if (!drm_WARN_ON(&i915->drm, hweight32(mask) > 1))
                tc_port_fixup_legacy_flag(dig_port, mask);
 
        return mask;
@@ -409,8 +410,9 @@ static void intel_tc_port_reset_mode(struct intel_digital_port *dig_port,
        enum tc_port_mode old_tc_mode = dig_port->tc_mode;
 
        intel_display_power_flush_work(i915);
-       WARN_ON(intel_display_power_is_enabled(i915,
-                                              intel_aux_power_domain(dig_port)));
+       drm_WARN_ON(&i915->drm,
+                   intel_display_power_is_enabled(i915,
+                                       intel_aux_power_domain(dig_port)));
 
        icl_tc_phy_disconnect(dig_port);
        icl_tc_phy_connect(dig_port, required_lanes);
@@ -503,7 +505,7 @@ static void __intel_tc_port_lock(struct intel_digital_port *dig_port,
            intel_tc_port_needs_reset(dig_port))
                intel_tc_port_reset_mode(dig_port, required_lanes);
 
-       WARN_ON(dig_port->tc_lock_wakeref);
+       drm_WARN_ON(&i915->drm, dig_port->tc_lock_wakeref);
        dig_port->tc_lock_wakeref = wakeref;
 }
 
@@ -550,7 +552,7 @@ void intel_tc_port_init(struct intel_digital_port *dig_port, bool is_legacy)
        enum port port = dig_port->base.port;
        enum tc_port tc_port = intel_port_to_tc(i915, port);
 
-       if (WARN_ON(tc_port == PORT_TC_NONE))
+       if (drm_WARN_ON(&i915->drm, tc_port == PORT_TC_NONE))
                return;
 
        snprintf(dig_port->tc_port_name, sizeof(dig_port->tc_port_name),