From: Lucas De Marchi Date: Mon, 10 Jun 2019 21:48:34 +0000 (-0700) Subject: drm/i915/cnl: use ranges for voltage level lookup X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=63b1700b40d63a1369c0bc756d579bc242c658d7;p=openwrt%2Fstaging%2Fblogic.git drm/i915/cnl: use ranges for voltage level lookup 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 --- 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,