drm/i915: convert VLV IOSF SB interface to struct drm_device

With users both in i915 core and display, struct drm_device is the
common denominator for the VLV IOSF SB users. Also use drm_device for
the helpers on the display side to keep the static inlines as simple as
possible.

We can drop a number of dependencies on i915_drv.h with this.

v2,v3: Rebase

Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://lore.kernel.org/r/c1d013ed88ce2e3e5bdc15ce3bf01a3960b1e817.1747061743.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

1 files changed, 12 insertions, 11 deletions

diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index 704ca079980c..e0928f28d711 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -140,46 +140,47 @@ static void bdw_set_pipe_misc(struct intel_dsb *dsb,
 			      const struct intel_crtc_state *crtc_state);
 
 /* returns HPLL frequency in kHz */
-int vlv_get_hpll_vco(struct drm_i915_private *dev_priv)
+int vlv_get_hpll_vco(struct drm_device *drm)
 {
 	int hpll_freq, vco_freq[] = { 800, 1600, 2000, 2400 };
 
 	/* Obtain SKU information */
-	hpll_freq = vlv_cck_read(dev_priv, CCK_FUSE_REG) &
+	hpll_freq = vlv_cck_read(drm, CCK_FUSE_REG) &
 		CCK_FUSE_HPLL_FREQ_MASK;
 
 	return vco_freq[hpll_freq] * 1000;
 }
 
-int vlv_get_cck_clock(struct drm_i915_private *dev_priv,
+int vlv_get_cck_clock(struct drm_device *drm,
 		      const char *name, u32 reg, int ref_freq)
 {
 	u32 val;
 	int divider;
 
-	val = vlv_cck_read(dev_priv, reg);
+	val = vlv_cck_read(drm, reg);
 	divider = val & CCK_FREQUENCY_VALUES;
 
-	drm_WARN(&dev_priv->drm, (val & CCK_FREQUENCY_STATUS) !=
+	drm_WARN(drm, (val & CCK_FREQUENCY_STATUS) !=
 		 (divider << CCK_FREQUENCY_STATUS_SHIFT),
 		 "%s change in progress\n", name);
 
 	return DIV_ROUND_CLOSEST(ref_freq << 1, divider + 1);
 }
 
-int vlv_get_cck_clock_hpll(struct drm_i915_private *dev_priv,
+int vlv_get_cck_clock_hpll(struct drm_device *drm,
 			   const char *name, u32 reg)
 {
+	struct drm_i915_private *dev_priv = to_i915(drm);
 	int hpll;
 
-	vlv_cck_get(dev_priv);
+	vlv_cck_get(drm);
 
 	if (dev_priv->hpll_freq == 0)
-		dev_priv->hpll_freq = vlv_get_hpll_vco(dev_priv);
+		dev_priv->hpll_freq = vlv_get_hpll_vco(drm);
 
-	hpll = vlv_get_cck_clock(dev_priv, name, reg, dev_priv->hpll_freq);
+	hpll = vlv_get_cck_clock(drm, name, reg, dev_priv->hpll_freq);
 
-	vlv_cck_put(dev_priv);
+	vlv_cck_put(drm);
 
 	return hpll;
 }
@@ -191,7 +192,7 @@ void intel_update_czclk(struct intel_display *display)
 	if (!display->platform.valleyview && !display->platform.cherryview)
 		return;
 
-	dev_priv->czclk_freq = vlv_get_cck_clock_hpll(dev_priv, "czclk",
+	dev_priv->czclk_freq = vlv_get_cck_clock_hpll(display->drm, "czclk",
 						      CCK_CZ_CLOCK_CONTROL);
 
 	drm_dbg_kms(display->drm, "CZ clock rate: %d kHz\n", dev_priv->czclk_freq);