drm/i915/hdmi: prefer to_i915() over drm->dev_private to get at i915

drm->dev_private is to be avoided. Use to_i915() on the struct
drm_device pointer instead. Rename the affected local dev_priv variables
to i915 while at it.

Cc: Wambui Karuga <wambui.karugax@gmail.com>
Reviewed-by: Wambui Karuga <wambui.karugax@gmail.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200211134427.31605-1-jani.nikula@intel.com

diff --git a/drivers/gpu/drm/i915/display/intel_hdmi.c b/drivers/gpu/drm/i915/display/intel_hdmi.c
index e68bafb..bee9c9b 100644 (file)
--- a/drivers/gpu/drm/i915/display/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/display/intel_hdmi.c
@@ -1274,10 +1274,9 @@ void intel_dp_dual_mode_set_tmds_output(struct intel_hdmi *hdmi, bool enable)
 static int intel_hdmi_hdcp_read(struct intel_digital_port *intel_dig_port,
                                unsigned int offset, void *buffer, size_t size)
 {
+       struct drm_i915_private *i915 = to_i915(intel_dig_port->base.base.dev);
        struct intel_hdmi *hdmi = &intel_dig_port->hdmi;
-       struct drm_i915_private *dev_priv =
-               intel_dig_port->base.base.dev->dev_private;
-       struct i2c_adapter *adapter = intel_gmbus_get_adapter(dev_priv,
+       struct i2c_adapter *adapter = intel_gmbus_get_adapter(i915,
                                                              hdmi->ddc_bus);
        int ret;
        u8 start = offset & 0xff;
@@ -1304,10 +1303,9 @@ static int intel_hdmi_hdcp_read(struct intel_digital_port *intel_dig_port,
 static int intel_hdmi_hdcp_write(struct intel_digital_port *intel_dig_port,
                                 unsigned int offset, void *buffer, size_t size)
 {
+       struct drm_i915_private *i915 = to_i915(intel_dig_port->base.base.dev);
        struct intel_hdmi *hdmi = &intel_dig_port->hdmi;
-       struct drm_i915_private *dev_priv =
-               intel_dig_port->base.base.dev->dev_private;
-       struct i2c_adapter *adapter = intel_gmbus_get_adapter(dev_priv,
+       struct i2c_adapter *adapter = intel_gmbus_get_adapter(i915,
                                                              hdmi->ddc_bus);
        int ret;
        u8 *write_buf;
@@ -1339,10 +1337,9 @@ static
 int intel_hdmi_hdcp_write_an_aksv(struct intel_digital_port *intel_dig_port,
                                  u8 *an)
 {
+       struct drm_i915_private *i915 = to_i915(intel_dig_port->base.base.dev);
        struct intel_hdmi *hdmi = &intel_dig_port->hdmi;
-       struct drm_i915_private *dev_priv =
-               intel_dig_port->base.base.dev->dev_private;
-       struct i2c_adapter *adapter = intel_gmbus_get_adapter(dev_priv,
+       struct i2c_adapter *adapter = intel_gmbus_get_adapter(i915,
                                                              hdmi->ddc_bus);
        int ret;
 
@@ -1521,8 +1518,7 @@ int intel_hdmi_hdcp_toggle_signalling(struct intel_digital_port *intel_dig_port,
 static
 bool intel_hdmi_hdcp_check_link(struct intel_digital_port *intel_dig_port)
 {
-       struct drm_i915_private *dev_priv =
-               intel_dig_port->base.base.dev->dev_private;
+       struct drm_i915_private *i915 = to_i915(intel_dig_port->base.base.dev);
        struct intel_connector *connector =
                intel_dig_port->hdmi.attached_connector;
        enum port port = intel_dig_port->base.port;
@@ -1537,14 +1533,13 @@ bool intel_hdmi_hdcp_check_link(struct intel_digital_port *intel_dig_port)
        if (ret)
                return false;
 
-       intel_de_write(dev_priv, HDCP_RPRIME(dev_priv, cpu_transcoder, port),
-                      ri.reg);
+       intel_de_write(i915, HDCP_RPRIME(i915, cpu_transcoder, port), ri.reg);
 
        /* Wait for Ri prime match */
-       if (wait_for(intel_de_read(dev_priv, HDCP_STATUS(dev_priv, cpu_transcoder, port)) &
+       if (wait_for(intel_de_read(i915, HDCP_STATUS(i915, cpu_transcoder, port)) &
                     (HDCP_STATUS_RI_MATCH | HDCP_STATUS_ENC), 1)) {
                DRM_ERROR("Ri' mismatch detected, link check failed (%x)\n",
-                         intel_de_read(dev_priv, HDCP_STATUS(dev_priv, cpu_transcoder, port)));
+                         intel_de_read(i915, HDCP_STATUS(i915, cpu_transcoder, port)));
                return false;
        }
        return true;