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| author | Matt DeVillier <matt.devillier@gmail.com> | 2020-03-29 16:58:48 -0500 |
|---|---|---|
| committer | Matt DeVillier <matt.devillier@gmail.com> | 2020-04-02 20:45:20 +0000 |
| commit | 8ff2ecd3448fa47dfad3753bd5a50917e2b86f61 (patch) | |
| tree | bdb64592f3bbb798461339e7a80cd25b5e152b06 | |
| parent | c72f5f74a890ddd20e7849fce7d693a1fdd6da66 (diff) | |
soc/intel/braswell: add ACPI backlight support
Add hook to generate ACPI methods in SSDT for screen backlight control.
To make use of this, individual boards will need to
include default_brightness_levels.asl in their dsdt, as
well as add 'register "gfx" = "GMA_STATIC_DISPLAYS(0)"' to
their devicetree.
Change-Id: I0adccc6c8bee71d3c1b7840518308c8dc8ea2d81
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39943
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
| -rw-r--r-- | src/soc/intel/braswell/chip.h | 3 | ||||
| -rw-r--r-- | src/soc/intel/braswell/gfx.c | 9 |
2 files changed, 12 insertions, 0 deletions
diff --git a/src/soc/intel/braswell/chip.h b/src/soc/intel/braswell/chip.h index 026e491006..5f1aaee3be 100644 --- a/src/soc/intel/braswell/chip.h +++ b/src/soc/intel/braswell/chip.h @@ -21,6 +21,7 @@ #define _SOC_CHIP_H_ #include <stdint.h> +#include <drivers/intel/gma/i915.h> #include <fsp/util.h> #include <intelblocks/lpc_lib.h> #include <soc/pci_devs.h> @@ -169,6 +170,8 @@ struct soc_intel_braswell_config { uint8_t I2C4Frequency; uint8_t I2C5Frequency; uint8_t I2C6Frequency; + + struct i915_gpu_controller_info gfx; }; #endif /* _SOC_CHIP_H_ */ diff --git a/src/soc/intel/braswell/gfx.c b/src/soc/intel/braswell/gfx.c index ff73955d7a..12fe6427f0 100644 --- a/src/soc/intel/braswell/gfx.c +++ b/src/soc/intel/braswell/gfx.c @@ -18,6 +18,7 @@ #include <device/pci.h> #include <device/pci_ids.h> #include <drivers/intel/gma/opregion.h> +#include <drivers/intel/gma/i915.h> #include <reg_script.h> #include <soc/gfx.h> #include <soc/nvs.h> @@ -87,12 +88,20 @@ void gma_set_gnvs_aslb(void *gnvs, uintptr_t aslb) gnvs_ptr->aslb = aslb; } +static void gma_generate_ssdt(struct device *dev) +{ + const struct soc_intel_braswell_config *chip = dev->chip_info; + + drivers_intel_gma_displays_ssdt_generate(&chip->gfx); +} + static struct device_operations gfx_device_ops = { .read_resources = pci_dev_read_resources, .set_resources = pci_dev_set_resources, .enable_resources = pci_dev_enable_resources, .init = gfx_init, .ops_pci = &soc_pci_ops, + .acpi_fill_ssdt = gma_generate_ssdt, }; static const struct pci_driver gfx_driver __pci_driver = { |