From 63b1700b40d63a1369c0bc756d579bc242c658d7 Mon Sep 17 00:00:00 2001 From: Lucas De Marchi Date: Mon, 10 Jun 2019 14:48:34 -0700 Subject: [PATCH] drm/i915/cnl: use ranges for voltage level lookup MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Like was done for ICL, let's convert the voltage level lookup to use frequency ranges rather than individual frequencies. For deciding the voltage, the individual value doesn't really matter. Signed-off-by: Lucas De Marchi Reviewed-by: Ville Syrjälä Link: https://patchwork.freedesktop.org/patch/msgid/20190610214834.9789-1-lucas.demarchi@intel.com --- drivers/gpu/drm/i915/intel_cdclk.c | 13 +++++-------- 1 file changed, 5 insertions(+), 8 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_cdclk.c b/drivers/gpu/drm/i915/intel_cdclk.c index 465a72d185ad..80e22507cd34 100644 --- a/drivers/gpu/drm/i915/intel_cdclk.c +++ b/drivers/gpu/drm/i915/intel_cdclk.c @@ -1531,15 +1531,12 @@ static int cnl_calc_cdclk(int min_cdclk) static u8 cnl_calc_voltage_level(int cdclk) { - switch (cdclk) { - default: - case 168000: - return 0; - case 336000: - return 1; - case 528000: + if (cdclk > 336000) return 2; - } + else if (cdclk > 168000) + return 1; + else + return 0; } static void cnl_cdclk_pll_update(struct drm_i915_private *dev_priv, -- 2.49.0