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There are multiple different devicetree setting formats for graphics
panel settings present in coreboot. Replace the ones for the platforms
that already have (mostly) unified gma/graphics setup code by a unified
struct in the gma driver. Hook it up in HSW, BDW, SKL, and APL and adapt
the devicetrees accordingly.
Always ensure that values don't overflow by applying appropriate masks.
The remaining platforms implementing panel settings (GM45, i945, ILK and
SNB) can be migrated later after unifying their gma/graphics setup code.
Signed-off-by: Michael Niewöhner <foss@mniewoehner.de>
Change-Id: I445defe01d5fbf9a69cf05cf1b5bd6c7c2c1725e
Reviewed-on: https://review.coreboot.org/c/coreboot/+/48885
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Nico Huber <nico.h@gmx.de>
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For easier review of the switch to a new register struct in the
follow-up change, the panel delay times get converted from destination
register raw format to milliseconds representation in this change.
Formula for conversion of power cycle delay:
gpu_panel_power_cycle_delay_ms =
(gpu_panel_power_cycle_delay - 1) * 100
Formula for all others:
gpu_panel_power_X_delay_ms = gpu_panel_power_X_delay / 10
The register names gain a suffix `_ms` and calculation of the
destination register raw values gets done in gma code now.
Change-Id: Idf8e076dac2b3048a63a0109263a6e7899f07230
Signed-off-by: Michael Niewöhner <foss@mniewoehner.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/48958
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
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The corresponding bits in PP_ON_DELAYS are reserved MBZ.
Change-Id: Icd2554c928a5908dfb354b81d3e6c5b5f242f1d1
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45034
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
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Since the variants' devicetrees are almost identical, convert to
using an overridetree setup for simplicity.
Test: build all slippy variants, compare generated static.c to ensure
resulting generated contents unchanged (although layout will)
Change-Id: If237fad38a1bccfb8e51edfae3ecb75d05ade240
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39919
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
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