From ccf6e0d9774657892e6715d519ea1c48c692158a Mon Sep 17 00:00:00 2001 From: Anusha Srivatsa Date: Fri, 19 Jan 2018 16:48:12 -0200 Subject: [PATCH] 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 Cc: Ville Syrjala Acked-by: Rodrigo Vivi Acked-by: James Ausmus Reviewed-by: Paulo Zanoni Signed-off-by: Anusha Srivatsa Signed-off-by: Paulo Zanoni Link: https://patchwork.freedesktop.org/patch/msgid/20180119184812.2888-1-paulo.r.zanoni@intel.com Signed-off-by: Paulo Zanoni --- drivers/gpu/drm/i915/intel_panel.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_panel.c b/drivers/gpu/drm/i915/intel_panel.c index fa6831f8c004..e702a6487aa9 100644 --- a/drivers/gpu/drm/i915/intel_panel.c +++ b/drivers/gpu/drm/i915/intel_panel.c @@ -1719,9 +1719,9 @@ cnp_setup_backlight(struct intel_connector *connector, enum pipe unused) u32 pwm_ctl, val; /* - * CNP has the BXT implementation of backlight, but with only - * one controller. Future platforms could have multiple controllers - * so let's make this extensible and prepared for the future. + * CNP has the BXT implementation of backlight, but with only one + * controller. TODO: ICP has multiple controllers but we only use + * controller 0 for now. */ panel->backlight.controller = 0; @@ -1865,7 +1865,7 @@ intel_panel_init_backlight_funcs(struct intel_panel *panel) panel->backlight.set = bxt_set_backlight; panel->backlight.get = bxt_get_backlight; panel->backlight.hz_to_pwm = bxt_hz_to_pwm; - } else if (HAS_PCH_CNP(dev_priv)) { + } else if (HAS_PCH_CNP(dev_priv) || HAS_PCH_ICP(dev_priv)) { panel->backlight.setup = cnp_setup_backlight; panel->backlight.enable = cnp_enable_backlight; panel->backlight.disable = cnp_disable_backlight; -- 2.30.2