From ac213c1b45f7dcedb71d955c2321cbb4a2b6558e Mon Sep 17 00:00:00 2001 From: Paulo Zanoni Date: Mon, 21 May 2018 17:25:37 -0700 Subject: [PATCH] drm/i915/icl: introduce tc_port Add and enum for TC ports and auxiliary functions to handle them. Icelake brings a lot of registers and other things that only apply to the TC ports and are indexed starting from 0, so having an enum for tc_ports that starts at 0 really helps the indexing. This patch is based on previous patches written by Dhinakaran Pandiyan and Mahesh Kumar. Cc: Dhinakaran Pandiyan Cc: Mahesh Kumar Reviewed-by: Mahesh Kumar Signed-off-by: Paulo Zanoni Link: https://patchwork.freedesktop.org/patch/msgid/20180522002558.29262-4-paulo.r.zanoni@intel.com --- drivers/gpu/drm/i915/intel_display.c | 16 ++++++++++++++++ drivers/gpu/drm/i915/intel_display.h | 11 +++++++++++ drivers/gpu/drm/i915/intel_drv.h | 3 +++ 3 files changed, 30 insertions(+) diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 141ded524482..17c590b42fd7 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -5869,6 +5869,22 @@ static void i9xx_pfit_enable(struct intel_crtc *crtc) I915_WRITE(BCLRPAT(crtc->pipe), 0); } +bool intel_port_is_tc(struct drm_i915_private *dev_priv, enum port port) +{ + if (IS_ICELAKE(dev_priv)) + return port >= PORT_C && port <= PORT_F; + + return false; +} + +enum tc_port intel_port_to_tc(struct drm_i915_private *dev_priv, enum port port) +{ + if (!intel_port_is_tc(dev_priv, port)) + return PORT_TC_NONE; + + return port - PORT_C; +} + enum intel_display_power_domain intel_port_to_power_domain(enum port port) { switch (port) { diff --git a/drivers/gpu/drm/i915/intel_display.h b/drivers/gpu/drm/i915/intel_display.h index 2ef31617614a..c88185ed7594 100644 --- a/drivers/gpu/drm/i915/intel_display.h +++ b/drivers/gpu/drm/i915/intel_display.h @@ -126,6 +126,17 @@ enum port { #define port_name(p) ((p) + 'A') +enum tc_port { + PORT_TC_NONE = -1, + + PORT_TC1 = 0, + PORT_TC2, + PORT_TC3, + PORT_TC4, + + I915_MAX_TC_PORTS +}; + enum dpio_channel { DPIO_CH0, DPIO_CH1 diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h index b1bb1a9d61f8..8641583842be 100644 --- a/drivers/gpu/drm/i915/intel_drv.h +++ b/drivers/gpu/drm/i915/intel_drv.h @@ -1489,6 +1489,9 @@ void intel_connector_attach_encoder(struct intel_connector *connector, struct intel_encoder *encoder); struct drm_display_mode * intel_encoder_current_mode(struct intel_encoder *encoder); +bool intel_port_is_tc(struct drm_i915_private *dev_priv, enum port port); +enum tc_port intel_port_to_tc(struct drm_i915_private *dev_priv, + enum port port); enum pipe intel_get_pipe_from_connector(struct intel_connector *connector); int intel_get_pipe_from_crtc_id_ioctl(struct drm_device *dev, void *data, -- GitLab