hrev56158 adds 1 changeset to branch 'master'
old head: e9e00b80c07ebad2f0a5b1e9365047044c762933
new head: 85344c112ca7a226e2ada0f2887db9d6334292bc
overview:
https://git.haiku-os.org/haiku/log/?qt=range&q=85344c112ca7+%5Ee9e00b80c07e
----------------------------------------------------------------------------
85344c112ca7: intel_extreme: also set hw_cdclk on Broadwell
this needed for dp aux before skylake, only for DP A (eDP).
should help with #17771
Change-Id: I4bdcca1fdc05294fb5b56c5c96164b6936a5881e
Reviewed-on: https://review.haiku-os.org/c/haiku/+/5355
Tested-by: Commit checker robot <no-reply+buildbot@xxxxxxxxxxxx>
Reviewed-by: Adrien Destugues <pulkomandy@xxxxxxxxx>
[ Jérôme Duval <jerome.duval@xxxxxxxxx> ]
----------------------------------------------------------------------------
Revision: hrev56158
Commit: 85344c112ca7a226e2ada0f2887db9d6334292bc
URL: https://git.haiku-os.org/haiku/commit/?id=85344c112ca7
Author: Jérôme Duval <jerome.duval@xxxxxxxxx>
Date: Sat Jun 4 19:31:36 2022 UTC
Ticket: https://dev.haiku-os.org/ticket/17771
----------------------------------------------------------------------------
2 files changed, 15 insertions(+), 1 deletion(-)
headers/private/graphics/intel_extreme/intel_extreme.h | 2 ++
.../drivers/graphics/intel_extreme/intel_extreme.cpp | 14 +++++++++++++-
----------------------------------------------------------------------------
diff --git a/headers/private/graphics/intel_extreme/intel_extreme.h
b/headers/private/graphics/intel_extreme/intel_extreme.h
index 933e239e5a..cad0f7dc3a 100644
--- a/headers/private/graphics/intel_extreme/intel_extreme.h
+++ b/headers/private/graphics/intel_extreme/intel_extreme.h
@@ -923,6 +923,8 @@ struct intel_brightness_legacy {
#define LCPLL_CTL 0x130040
#define LCPLL_CLK_FREQ_MASK (3 << 26)
#define LCPLL_CLK_FREQ_450 (0 << 26)
+#define LCPLL_CLK_FREQ_54O_BDW (1 << 26)
+#define LCPLL_CLK_FREQ_337_5_BDW (2 << 26)
#define LCPLL_CD_SOURCE_FCLK (1 << 21)
// display
diff --git
a/src/add-ons/kernel/drivers/graphics/intel_extreme/intel_extreme.cpp
b/src/add-ons/kernel/drivers/graphics/intel_extreme/intel_extreme.cpp
index 2220305175..1e541a9b86 100644
--- a/src/add-ons/kernel/drivers/graphics/intel_extreme/intel_extreme.cpp
+++ b/src/add-ons/kernel/drivers/graphics/intel_extreme/intel_extreme.cpp
@@ -879,7 +879,19 @@ intel_extreme_init(intel_info &info)
info.shared_info->fdi_link_frequency = 0;
}
- if (info.device_type.InGroup(INTEL_GROUP_HAS)) {
+ if (info.device_type.InGroup(INTEL_GROUP_BDW)) {
+ uint32 lcpll = read32(info, LCPLL_CTL);
+ if ((lcpll & LCPLL_CD_SOURCE_FCLK) != 0)
+ info.shared_info->hw_cdclk = 800000;
+ else if ((lcpll & LCPLL_CLK_FREQ_MASK) == LCPLL_CLK_FREQ_450)
+ info.shared_info->hw_cdclk = 450000;
+ else if ((lcpll & LCPLL_CLK_FREQ_MASK) ==
LCPLL_CLK_FREQ_54O_BDW)
+ info.shared_info->hw_cdclk = 540000;
+ else if ((lcpll & LCPLL_CLK_FREQ_MASK) ==
LCPLL_CLK_FREQ_337_5_BDW)
+ info.shared_info->hw_cdclk = 337500;
+ else
+ info.shared_info->hw_cdclk = 675000;
+ } else if (info.device_type.InGroup(INTEL_GROUP_HAS)) {
uint32 lcpll = read32(info, LCPLL_CTL);
if ((lcpll & LCPLL_CD_SOURCE_FCLK) != 0)
info.shared_info->hw_cdclk = 800000;