@@ -2051,7 +2051,7 @@ static void bxt_set_cdclk(struct drm_i915_private *dev_priv,
static void bxt_sanitize_cdclk(struct drm_i915_private *dev_priv)
{
u32 cdctl, expected;
- int cdclk, clock, vco;
+ int cdclk, vco;
intel_update_cdclk(dev_priv);
intel_cdclk_dump_config(dev_priv, &dev_priv->display.cdclk.hw, "Current CDCLK");
@@ -2076,6 +2076,7 @@ static void bxt_sanitize_cdclk(struct drm_i915_private *dev_priv)
* so sanitize this register.
*/
cdctl = intel_de_read(dev_priv, CDCLK_CTL);
+ expected = bxt_cdclk_ctl(dev_priv, &dev_priv->display.cdclk.hw, INVALID_PIPE);
/*
* Let's ignore the pipe field, since BIOS could have configured the
@@ -2083,28 +2084,7 @@ static void bxt_sanitize_cdclk(struct drm_i915_private *dev_priv)
* (PIPE_NONE).
*/
cdctl &= ~bxt_cdclk_cd2x_pipe(dev_priv, INVALID_PIPE);
-
- if (DISPLAY_VER(dev_priv) >= 20)
- expected = MDCLK_SOURCE_SEL_CDCLK_PLL;
- else
- expected = skl_cdclk_decimal(cdclk);
-
- /* Figure out what CD2X divider we should be using for this cdclk */
- if (HAS_CDCLK_SQUASH(dev_priv))
- clock = dev_priv->display.cdclk.hw.vco / 2;
- else
- clock = dev_priv->display.cdclk.hw.cdclk;
-
- expected |= bxt_cdclk_cd2x_div_sel(dev_priv, clock,
- dev_priv->display.cdclk.hw.vco);
-
- /*
- * Disable SSA Precharge when CD clock frequency < 500 MHz,
- * enable otherwise.
- */
- if ((IS_GEMINILAKE(dev_priv) || IS_BROXTON(dev_priv)) &&
- dev_priv->display.cdclk.hw.cdclk >= 500000)
- expected |= BXT_CDCLK_SSA_PRECHARGE_ENABLE;
+ expected &= ~bxt_cdclk_cd2x_pipe(dev_priv, INVALID_PIPE);
if (cdctl == expected)
/* All well; nothing to sanitize */
The function bxt_cdclk_ctl() is responsible for deriving the value for CDCLK_CTL; use it instead of repeating the same logic. v2: - Use a better commit message body by making it more self-contained and not referring to stuff from the subject line. (Matt) Reviewed-by: Matt Roper <matthew.d.roper@intel.com> Signed-off-by: Gustavo Sousa <gustavo.sousa@intel.com> --- drivers/gpu/drm/i915/display/intel_cdclk.c | 26 +++------------------- 1 file changed, 3 insertions(+), 23 deletions(-)