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drm/i915/mchbar: Use intel_mchbar_read() instead of intel_de_read()

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We are doing a few accesses to MCHBAR registers with intel_de_read().
Use the dedicated intel_mchbar_read() instead.

Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patch.msgid.link/20260331154259.24600-6-ville.syrjala@linux.intel.com
This commit is contained in:
Ville Syrjälä 2026-03-31 18:42:52 +03:00
parent 84b0366809
commit 1b274a3de2
2 changed files with 5 additions and 3 deletions
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5
drivers/gpu/drm/i915/display/intel_cdclk.c
View File

@ -41,6 +41,7 @@
#include "intel_display_utils.h"
#include "intel_display_wa.h"
#include "intel_dram.h"
#include "intel_mchbar.h"
#include "intel_mchbar_regs.h"
#include "intel_parent.h"
#include "intel_pci_config.h"
@ -376,8 +377,8 @@ static unsigned int intel_hpll_vco(struct intel_display *display)
else
return 0;
tmp = intel_de_read(display, display->platform.pineview ||
display->platform.mobile ? HPLLVCO_MOBILE : HPLLVCO);
tmp = intel_mchbar_read(display, display->platform.pineview ||
display->platform.mobile ? HPLLVCO_MOBILE : HPLLVCO);
vco = vco_table[tmp & 0x7];
if (vco == 0)

3
drivers/gpu/drm/i915/display/intel_display_power.c
View File

@ -24,6 +24,7 @@
#include "intel_display_wa.h"
#include "intel_dmc.h"
#include "intel_dram.h"
#include "intel_mchbar.h"
#include "intel_mchbar_regs.h"
#include "intel_parent.h"
#include "intel_pch_refclk.h"
@ -1252,7 +1253,7 @@ static void assert_can_disable_lcpll(struct intel_display *display)
static u32 hsw_read_dcomp(struct intel_display *display)
{
if (display->platform.haswell)
return intel_de_read(display, D_COMP_HSW);
return intel_mchbar_read(display, D_COMP_HSW);
else
return intel_de_read(display, D_COMP_BDW);
}