Reviewed-by: Juha-Pekka Heikkila <[email protected]>

On 4.12.2019 20.05, Ville Syrjala wrote:
From: Ville Syrjälä <[email protected]>

It's easy to confuse the drm_connector->encoder (legacy state
adjusted during modeset) and intel_connector->encoder (the statically
(sans. MST) attached encoder of the connector). For the latter
let's use intel_attached_encoder() consistently.

@@
identifier F !~ "^intel_attached_encoder$";
struct intel_connector *C;
expression E;
@@
F(...)
{
<...
(
   C->encoder = E
|
- C->encoder
+ intel_attached_encoder(C)
)
...>
}

@@
identifier F !~ "^intel_attached_encoder$";
struct drm_connector *C;
expression E;
@@
F(...)
{
<...
(
   to_intel_connector(C)->encoder = E
|
- to_intel_connector(C)->encoder
+ intel_attached_encoder(to_intel_connector(C))
)
...>
}

Signed-off-by: Ville Syrjälä <[email protected]>
---
  drivers/gpu/drm/i915/display/intel_connector.c       |  2 +-
  drivers/gpu/drm/i915/display/intel_ddi.c             |  2 +-
  drivers/gpu/drm/i915/display/intel_display.c         |  4 ++--
  .../gpu/drm/i915/display/intel_dp_aux_backlight.c    | 12 ++++++------
  drivers/gpu/drm/i915/display/intel_dp_mst.c          |  4 ++--
  .../gpu/drm/i915/display/intel_dsi_dcs_backlight.c   |  4 ++--
  drivers/gpu/drm/i915/display/intel_hdcp.c            |  8 ++++----
  drivers/gpu/drm/i915/display/intel_hotplug.c         | 10 +++++-----
  drivers/gpu/drm/i915/display/vlv_dsi.c               |  2 +-
  drivers/gpu/drm/i915/i915_debugfs.c                  |  6 +++---
  10 files changed, 27 insertions(+), 27 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_connector.c 
b/drivers/gpu/drm/i915/display/intel_connector.c
index 1133c4e97bb4..54891a4ed2f3 100644
--- a/drivers/gpu/drm/i915/display/intel_connector.c
+++ b/drivers/gpu/drm/i915/display/intel_connector.c
@@ -153,7 +153,7 @@ void intel_connector_attach_encoder(struct intel_connector 
*connector,
  bool intel_connector_get_hw_state(struct intel_connector *connector)
  {
        enum pipe pipe = 0;
-       struct intel_encoder *encoder = connector->encoder;
+       struct intel_encoder *encoder = intel_attached_encoder(connector);
return encoder->get_hw_state(encoder, &pipe);
  }
diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c 
b/drivers/gpu/drm/i915/display/intel_ddi.c
index 52d187db320f..3e46017150b4 100644
--- a/drivers/gpu/drm/i915/display/intel_ddi.c
+++ b/drivers/gpu/drm/i915/display/intel_ddi.c
@@ -2003,7 +2003,7 @@ bool intel_ddi_connector_get_hw_state(struct 
intel_connector *intel_connector)
  {
        struct drm_device *dev = intel_connector->base.dev;
        struct drm_i915_private *dev_priv = to_i915(dev);
-       struct intel_encoder *encoder = intel_connector->encoder;
+       struct intel_encoder *encoder = intel_attached_encoder(intel_connector);
        int type = intel_connector->base.connector_type;
        enum port port = encoder->port;
        enum transcoder cpu_transcoder;
diff --git a/drivers/gpu/drm/i915/display/intel_display.c 
b/drivers/gpu/drm/i915/display/intel_display.c
index 45568a7c6579..df1b80387106 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -7279,7 +7279,7 @@ static void intel_connector_verify_state(struct 
intel_crtc_state *crtc_state,
                      connector->base.name);
if (connector->get_hw_state(connector)) {
-               struct intel_encoder *encoder = connector->encoder;
+               struct intel_encoder *encoder = 
intel_attached_encoder(connector);
I915_STATE_WARN(!crtc_state,
                         "connector enabled without attached crtc\n");
@@ -17529,7 +17529,7 @@ static void intel_modeset_readout_hw_state(struct 
drm_device *dev)
connector->base.dpms = DRM_MODE_DPMS_ON; - encoder = connector->encoder;
+                       encoder = intel_attached_encoder(connector);
                        connector->base.encoder = &encoder->base;
crtc = to_intel_crtc(encoder->base.crtc);
diff --git a/drivers/gpu/drm/i915/display/intel_dp_aux_backlight.c 
b/drivers/gpu/drm/i915/display/intel_dp_aux_backlight.c
index 7c653f8c307f..771e22a0b2a4 100644
--- a/drivers/gpu/drm/i915/display/intel_dp_aux_backlight.c
+++ b/drivers/gpu/drm/i915/display/intel_dp_aux_backlight.c
@@ -57,7 +57,7 @@ static void set_aux_backlight_enable(struct intel_dp 
*intel_dp, bool enable)
   */
  static u32 intel_dp_aux_get_backlight(struct intel_connector *connector)
  {
-       struct intel_dp *intel_dp = enc_to_intel_dp(connector->encoder);
+       struct intel_dp *intel_dp = 
enc_to_intel_dp(intel_attached_encoder(connector));
        u8 read_val[2] = { 0x0 };
        u16 level = 0;
@@ -82,7 +82,7 @@ static void
  intel_dp_aux_set_backlight(const struct drm_connector_state *conn_state, u32 
level)
  {
        struct intel_connector *connector = 
to_intel_connector(conn_state->connector);
-       struct intel_dp *intel_dp = enc_to_intel_dp(connector->encoder);
+       struct intel_dp *intel_dp = 
enc_to_intel_dp(intel_attached_encoder(connector));
        u8 vals[2] = { 0x0 };
vals[0] = level;
@@ -110,7 +110,7 @@ intel_dp_aux_set_backlight(const struct drm_connector_state 
*conn_state, u32 lev
  static bool intel_dp_aux_set_pwm_freq(struct intel_connector *connector)
  {
        struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
-       struct intel_dp *intel_dp = enc_to_intel_dp(connector->encoder);
+       struct intel_dp *intel_dp = 
enc_to_intel_dp(intel_attached_encoder(connector));
        int freq, fxp, fxp_min, fxp_max, fxp_actual, f = 1;
        u8 pn, pn_min, pn_max;
@@ -178,7 +178,7 @@ static void intel_dp_aux_enable_backlight(const struct intel_crtc_state *crtc_st
                                          const struct drm_connector_state 
*conn_state)
  {
        struct intel_connector *connector = 
to_intel_connector(conn_state->connector);
-       struct intel_dp *intel_dp = enc_to_intel_dp(connector->encoder);
+       struct intel_dp *intel_dp = 
enc_to_intel_dp(intel_attached_encoder(connector));
        u8 dpcd_buf, new_dpcd_buf, edp_backlight_mode;
if (drm_dp_dpcd_readb(&intel_dp->aux,
@@ -229,7 +229,7 @@ static void intel_dp_aux_disable_backlight(const struct 
drm_connector_state *old
  static int intel_dp_aux_setup_backlight(struct intel_connector *connector,
                                        enum pipe pipe)
  {
-       struct intel_dp *intel_dp = enc_to_intel_dp(connector->encoder);
+       struct intel_dp *intel_dp = 
enc_to_intel_dp(intel_attached_encoder(connector));
        struct intel_panel *panel = &connector->panel;
if (intel_dp->edp_dpcd[2] & DP_EDP_BACKLIGHT_BRIGHTNESS_BYTE_COUNT)
@@ -248,7 +248,7 @@ static int intel_dp_aux_setup_backlight(struct 
intel_connector *connector,
  static bool
  intel_dp_aux_display_control_capable(struct intel_connector *connector)
  {
-       struct intel_dp *intel_dp = enc_to_intel_dp(connector->encoder);
+       struct intel_dp *intel_dp = 
enc_to_intel_dp(intel_attached_encoder(connector));
/* Check the eDP Display control capabilities registers to determine if
         * the panel can support backlight control over the aux channel
diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c 
b/drivers/gpu/drm/i915/display/intel_dp_mst.c
index af7f6d670e07..1a7d69843c12 100644
--- a/drivers/gpu/drm/i915/display/intel_dp_mst.c
+++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c
@@ -503,9 +503,9 @@ static const struct drm_encoder_funcs 
intel_dp_mst_enc_funcs = {
static bool intel_dp_mst_get_hw_state(struct intel_connector *connector)
  {
-       if (connector->encoder && connector->base.state->crtc) {
+       if (intel_attached_encoder(connector) && connector->base.state->crtc) {
                enum pipe pipe;
-               if (!connector->encoder->get_hw_state(connector->encoder, 
&pipe))
+               if 
(!intel_attached_encoder(connector)->get_hw_state(intel_attached_encoder(connector),
 &pipe))
                        return false;
                return true;
        }
diff --git a/drivers/gpu/drm/i915/display/intel_dsi_dcs_backlight.c 
b/drivers/gpu/drm/i915/display/intel_dsi_dcs_backlight.c
index c87838843d0b..ac3eff26df12 100644
--- a/drivers/gpu/drm/i915/display/intel_dsi_dcs_backlight.c
+++ b/drivers/gpu/drm/i915/display/intel_dsi_dcs_backlight.c
@@ -45,7 +45,7 @@
static u32 dcs_get_backlight(struct intel_connector *connector)
  {
-       struct intel_encoder *encoder = connector->encoder;
+       struct intel_encoder *encoder = intel_attached_encoder(connector);
        struct intel_dsi *intel_dsi = enc_to_intel_dsi(encoder);
        struct mipi_dsi_device *dsi_device;
        u8 data = 0;
@@ -160,7 +160,7 @@ int intel_dsi_dcs_init_backlight_funcs(struct 
intel_connector *intel_connector)
  {
        struct drm_device *dev = intel_connector->base.dev;
        struct drm_i915_private *dev_priv = to_i915(dev);
-       struct intel_encoder *encoder = intel_connector->encoder;
+       struct intel_encoder *encoder = intel_attached_encoder(intel_connector);
        struct intel_panel *panel = &intel_connector->panel;
if (dev_priv->vbt.backlight.type != INTEL_BACKLIGHT_DSI_DCS)
diff --git a/drivers/gpu/drm/i915/display/intel_hdcp.c 
b/drivers/gpu/drm/i915/display/intel_hdcp.c
index 0fdbd39f6641..2859230671ae 100644
--- a/drivers/gpu/drm/i915/display/intel_hdcp.c
+++ b/drivers/gpu/drm/i915/display/intel_hdcp.c
@@ -1527,7 +1527,7 @@ static int hdcp2_enable_encryption(struct intel_connector 
*connector)
        struct intel_digital_port *intel_dig_port = conn_to_dig_port(connector);
        struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
        struct intel_hdcp *hdcp = &connector->hdcp;
-       enum port port = connector->encoder->port;
+       enum port port = intel_attached_encoder(connector)->port;
        enum transcoder cpu_transcoder = hdcp->cpu_transcoder;
        int ret;
@@ -1565,7 +1565,7 @@ static int hdcp2_disable_encryption(struct intel_connector *connector)
        struct intel_digital_port *intel_dig_port = conn_to_dig_port(connector);
        struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
        struct intel_hdcp *hdcp = &connector->hdcp;
-       enum port port = connector->encoder->port;
+       enum port port = intel_attached_encoder(connector)->port;
        enum transcoder cpu_transcoder = hdcp->cpu_transcoder;
        int ret;
@@ -1676,7 +1676,7 @@ static int intel_hdcp2_check_link(struct intel_connector *connector)
        struct intel_digital_port *intel_dig_port = conn_to_dig_port(connector);
        struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
        struct intel_hdcp *hdcp = &connector->hdcp;
-       enum port port = connector->encoder->port;
+       enum port port = intel_attached_encoder(connector)->port;
        enum transcoder cpu_transcoder;
        int ret = 0;
@@ -1830,7 +1830,7 @@ static inline int initialize_hdcp_port_data(struct intel_connector *connector, if (INTEL_GEN(dev_priv) < 12)
                data->fw_ddi =
-                       intel_get_mei_fw_ddi_index(connector->encoder->port);
+                       
intel_get_mei_fw_ddi_index(intel_attached_encoder(connector)->port);
        else
                /*
                 * As per ME FW API expectation, for GEN 12+, fw_ddi is filled
diff --git a/drivers/gpu/drm/i915/display/intel_hotplug.c 
b/drivers/gpu/drm/i915/display/intel_hotplug.c
index 99d3a3c7989e..c3a48af35997 100644
--- a/drivers/gpu/drm/i915/display/intel_hotplug.c
+++ b/drivers/gpu/drm/i915/display/intel_hotplug.c
@@ -200,7 +200,7 @@ intel_hpd_irq_storm_switch_to_polling(struct 
drm_i915_private *dev_priv)
                        continue;
intel_connector = to_intel_connector(connector);
-               intel_encoder = intel_connector->encoder;
+               intel_encoder = intel_attached_encoder(intel_connector);
                if (!intel_encoder)
                        continue;
@@ -255,7 +255,7 @@ static void intel_hpd_irq_storm_reenable_work(struct work_struct *work) /* Don't check MST ports, they don't have pins */
                        if (!intel_connector->mst_port &&
-                           intel_connector->encoder->hpd_pin == pin) {
+                           intel_attached_encoder(intel_connector)->hpd_pin == 
pin) {
                                if (connector->polled != 
intel_connector->polled)
                                        DRM_DEBUG_DRIVER("Reenabling HPD on 
connector %s\n",
                                                         connector->name);
@@ -389,9 +389,9 @@ static void i915_hotplug_work_func(struct work_struct *work)
                u32 hpd_bit;
intel_connector = to_intel_connector(connector);
-               if (!intel_connector->encoder)
+               if (!intel_attached_encoder(intel_connector))
                        continue;
-               intel_encoder = intel_connector->encoder;
+               intel_encoder = intel_attached_encoder(intel_connector);
                hpd_bit = BIT(intel_encoder->hpd_pin);
                if ((hpd_event_bits | hpd_retry_bits) & hpd_bit) {
                        DRM_DEBUG_KMS("Connector %s (pin %i) received hotplug 
event.\n",
@@ -621,7 +621,7 @@ static void i915_hpd_poll_init_work(struct work_struct 
*work)
                        continue;
if (!connector->polled && I915_HAS_HOTPLUG(dev_priv) &&
-                   intel_connector->encoder->hpd_pin > HPD_NONE) {
+                   intel_attached_encoder(intel_connector)->hpd_pin > 
HPD_NONE) {
                        connector->polled = enabled ?
                                DRM_CONNECTOR_POLL_CONNECT |
                                DRM_CONNECTOR_POLL_DISCONNECT :
diff --git a/drivers/gpu/drm/i915/display/vlv_dsi.c 
b/drivers/gpu/drm/i915/display/vlv_dsi.c
index 0c19064e42e0..535b332b067d 100644
--- a/drivers/gpu/drm/i915/display/vlv_dsi.c
+++ b/drivers/gpu/drm/i915/display/vlv_dsi.c
@@ -1567,7 +1567,7 @@ static enum drm_panel_orientation
  vlv_dsi_get_hw_panel_orientation(struct intel_connector *connector)
  {
        struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
-       struct intel_encoder *encoder = connector->encoder;
+       struct intel_encoder *encoder = intel_attached_encoder(connector);
        enum intel_display_power_domain power_domain;
        enum drm_panel_orientation orientation;
        struct intel_plane *plane;
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c 
b/drivers/gpu/drm/i915/i915_debugfs.c
index 3bc8d5c0e88a..d8c2fa2672b5 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -2431,7 +2431,7 @@ static void intel_hdcp_info(struct seq_file *m,
  static void intel_dp_info(struct seq_file *m,
                          struct intel_connector *intel_connector)
  {
-       struct intel_encoder *intel_encoder = intel_connector->encoder;
+       struct intel_encoder *intel_encoder = 
intel_attached_encoder(intel_connector);
        struct intel_dp *intel_dp = enc_to_intel_dp(intel_encoder);
seq_printf(m, "\tDPCD rev: %x\n", intel_dp->dpcd[DP_DPCD_REV]);
@@ -2450,7 +2450,7 @@ static void intel_dp_info(struct seq_file *m,
  static void intel_dp_mst_info(struct seq_file *m,
                          struct intel_connector *intel_connector)
  {
-       struct intel_encoder *intel_encoder = intel_connector->encoder;
+       struct intel_encoder *intel_encoder = 
intel_attached_encoder(intel_connector);
        struct intel_dp_mst_encoder *intel_mst =
                enc_to_mst(intel_encoder);
        struct intel_digital_port *intel_dig_port = intel_mst->primary;
@@ -2464,7 +2464,7 @@ static void intel_dp_mst_info(struct seq_file *m,
  static void intel_hdmi_info(struct seq_file *m,
                            struct intel_connector *intel_connector)
  {
-       struct intel_encoder *intel_encoder = intel_connector->encoder;
+       struct intel_encoder *intel_encoder = 
intel_attached_encoder(intel_connector);
        struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(intel_encoder);
seq_printf(m, "\taudio support: %s\n", yesno(intel_hdmi->has_audio));


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