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drm/i915/icp: Add backlight Support for ICP
ICP has two backlight controllers - similar to previous platforms like BXT -, but we only use one controller for now, so we can just reuse the CNP code. v2: Remove the usage of ICP_SECOND_PPS_BACKLIGHT register.(Jani) Reuse CNP code since it is very similar.(Ville) v3 (from Paulo): Rebase. v4 (from Paulo): adjust commit message (James) and comment (Rodrigo). Cc: Jani Nikula <jani.nikula@intel.com> Cc: Ville Syrjala <ville.syrjala@linux.intel.com> Acked-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Acked-by: James Ausmus <james.ausmus@intel.com> Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Signed-off-by: Anusha Srivatsa <anusha.srivatsa@intel.com> Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180119184812.2888-1-paulo.r.zanoni@intel.com Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
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1 changed files with 4 additions and 4 deletions
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@ -1719,9 +1719,9 @@ cnp_setup_backlight(struct intel_connector *connector, enum pipe unused)
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u32 pwm_ctl, val;
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/*
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* CNP has the BXT implementation of backlight, but with only
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* one controller. Future platforms could have multiple controllers
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* so let's make this extensible and prepared for the future.
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* CNP has the BXT implementation of backlight, but with only one
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* controller. TODO: ICP has multiple controllers but we only use
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* controller 0 for now.
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*/
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panel->backlight.controller = 0;
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@ -1865,7 +1865,7 @@ intel_panel_init_backlight_funcs(struct intel_panel *panel)
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panel->backlight.set = bxt_set_backlight;
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panel->backlight.get = bxt_get_backlight;
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panel->backlight.hz_to_pwm = bxt_hz_to_pwm;
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} else if (HAS_PCH_CNP(dev_priv)) {
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} else if (HAS_PCH_CNP(dev_priv) || HAS_PCH_ICP(dev_priv)) {
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panel->backlight.setup = cnp_setup_backlight;
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panel->backlight.enable = cnp_enable_backlight;
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panel->backlight.disable = cnp_disable_backlight;
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