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authorAnusha Srivatsa <anusha.srivatsa@intel.com>2018-01-19 21:48:12 +0300
committerPaulo Zanoni <paulo.r.zanoni@intel.com>2018-01-19 22:58:28 +0300
commitccf6e0d9774657892e6715d519ea1c48c692158a (patch)
treeaa328c7170a814c227a5f9552c68d6a33540386d /drivers/gpu/drm/i915/intel_panel.c
parentb0d6a0f27e2ce77dc48527404d3a15ebf1b5d26d (diff)
downloadlinux-ccf6e0d9774657892e6715d519ea1c48c692158a.tar.xz
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>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_panel.c')
-rw-r--r--drivers/gpu/drm/i915/intel_panel.c8
1 files 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;