mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-23 09:19:51 +00:00
6274991254
Move display hti/hdport related members under drm_i915_private display sub-struct. Prefer adding anonymous sub-structs even for single members that aren't our own structs. Signed-off-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221109144209.3624739-2-jani.nikula@intel.com
38 lines
978 B
C
38 lines
978 B
C
// SPDX-License-Identifier: MIT
|
|
/*
|
|
* Copyright © 2022 Intel Corporation
|
|
*/
|
|
|
|
#include "i915_drv.h"
|
|
#include "intel_de.h"
|
|
#include "intel_display.h"
|
|
#include "intel_hti.h"
|
|
#include "intel_hti_regs.h"
|
|
|
|
void intel_hti_init(struct drm_i915_private *i915)
|
|
{
|
|
/*
|
|
* If the platform has HTI, we need to find out whether it has reserved
|
|
* any display resources before we create our display outputs.
|
|
*/
|
|
if (INTEL_INFO(i915)->display.has_hti)
|
|
i915->display.hti.state = intel_de_read(i915, HDPORT_STATE);
|
|
}
|
|
|
|
bool intel_hti_uses_phy(struct drm_i915_private *i915, enum phy phy)
|
|
{
|
|
return i915->display.hti.state & HDPORT_ENABLED &&
|
|
i915->display.hti.state & HDPORT_DDI_USED(phy);
|
|
}
|
|
|
|
u32 intel_hti_dpll_mask(struct drm_i915_private *i915)
|
|
{
|
|
if (!(i915->display.hti.state & HDPORT_ENABLED))
|
|
return 0;
|
|
|
|
/*
|
|
* Note: This is subtle. The values must coincide with what's defined
|
|
* for the platform.
|
|
*/
|
|
return REG_FIELD_GET(HDPORT_DPLL_USED_MASK, i915->display.hti.state);
|
|
}
|