drm/i915: move memory frequency detection to intel_dram.c

The memory frequency detection is a bit spread out here and
there. Consolidate to intel_dram.c.

v2:
- Remove inaccurate comment (Ville)
- Call detect_mem_freq() unconditionally (Ville)

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/8a862eeca8b42a98e04b3c52637851d33531abb6.1676317696.git.jani.nikula@intel.com

1 files changed, 0 insertions, 101 deletions

diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index aefac9082533..110f92a2eed5 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -131,101 +131,6 @@ static void glk_init_clock_gating(struct drm_i915_private *dev_priv)
 		   PWM1_GATING_DIS | PWM2_GATING_DIS);
 }
 
-static void pnv_get_mem_freq(struct drm_i915_private *dev_priv)
-{
-	u32 tmp;
-
-	tmp = intel_uncore_read(&dev_priv->uncore, CLKCFG);
-
-	switch (tmp & CLKCFG_FSB_MASK) {
-	case CLKCFG_FSB_533:
-		dev_priv->fsb_freq = 533; /* 133*4 */
-		break;
-	case CLKCFG_FSB_800:
-		dev_priv->fsb_freq = 800; /* 200*4 */
-		break;
-	case CLKCFG_FSB_667:
-		dev_priv->fsb_freq =  667; /* 167*4 */
-		break;
-	case CLKCFG_FSB_400:
-		dev_priv->fsb_freq = 400; /* 100*4 */
-		break;
-	}
-
-	switch (tmp & CLKCFG_MEM_MASK) {
-	case CLKCFG_MEM_533:
-		dev_priv->mem_freq = 533;
-		break;
-	case CLKCFG_MEM_667:
-		dev_priv->mem_freq = 667;
-		break;
-	case CLKCFG_MEM_800:
-		dev_priv->mem_freq = 800;
-		break;
-	}
-
-	/* detect pineview DDR3 setting */
-	tmp = intel_uncore_read(&dev_priv->uncore, CSHRDDR3CTL);
-	dev_priv->is_ddr3 = (tmp & CSHRDDR3CTL_DDR3) ? 1 : 0;
-}
-
-static void ilk_get_mem_freq(struct drm_i915_private *dev_priv)
-{
-	u16 ddrpll, csipll;
-
-	ddrpll = intel_uncore_read16(&dev_priv->uncore, DDRMPLL1);
-	csipll = intel_uncore_read16(&dev_priv->uncore, CSIPLL0);
-
-	switch (ddrpll & 0xff) {
-	case 0xc:
-		dev_priv->mem_freq = 800;
-		break;
-	case 0x10:
-		dev_priv->mem_freq = 1066;
-		break;
-	case 0x14:
-		dev_priv->mem_freq = 1333;
-		break;
-	case 0x18:
-		dev_priv->mem_freq = 1600;
-		break;
-	default:
-		drm_dbg(&dev_priv->drm, "unknown memory frequency 0x%02x\n",
-			ddrpll & 0xff);
-		dev_priv->mem_freq = 0;
-		break;
-	}
-
-	switch (csipll & 0x3ff) {
-	case 0x00c:
-		dev_priv->fsb_freq = 3200;
-		break;
-	case 0x00e:
-		dev_priv->fsb_freq = 3733;
-		break;
-	case 0x010:
-		dev_priv->fsb_freq = 4266;
-		break;
-	case 0x012:
-		dev_priv->fsb_freq = 4800;
-		break;
-	case 0x014:
-		dev_priv->fsb_freq = 5333;
-		break;
-	case 0x016:
-		dev_priv->fsb_freq = 5866;
-		break;
-	case 0x018:
-		dev_priv->fsb_freq = 6400;
-		break;
-	default:
-		drm_dbg(&dev_priv->drm, "unknown fsb frequency 0x%04x\n",
-			csipll & 0x3ff);
-		dev_priv->fsb_freq = 0;
-		break;
-	}
-}
-
 static const struct cxsr_latency cxsr_latency_table[] = {
 	{1, 0, 800, 400, 3382, 33382, 3983, 33983},    /* DDR2-400 SC */
 	{1, 0, 800, 667, 3354, 33354, 3807, 33807},    /* DDR2-667 SC */
@@ -4893,12 +4798,6 @@ void intel_init_pm(struct drm_i915_private *dev_priv)
 		return;
 	}
 
-	/* For cxsr */
-	if (IS_PINEVIEW(dev_priv))
-		pnv_get_mem_freq(dev_priv);
-	else if (GRAPHICS_VER(dev_priv) == 5)
-		ilk_get_mem_freq(dev_priv);
-
 	/* For FIFO watermark updates */
 	if (HAS_PCH_SPLIT(dev_priv)) {
 		ilk_setup_wm_latency(dev_priv);