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| author | Tim Wawrzynczak <twawrzynczak@chromium.org> | 2022-02-28 08:57:09 -0700 |
|---|---|---|
| committer | Felix Held <felix-coreboot@felixheld.de> | 2022-03-07 17:48:44 +0000 |
| commit | 0292703b967f690f1770521804d0a5992941a37e (patch) | |
| tree | 0c3b67491d5b58e040181feb480ba9486979c2da /src | |
| parent | e611905eb3ba2ef9987fc2dad47ef42aa712308e (diff) | |
| download | coreboot-0292703b967f690f1770521804d0a5992941a37e.tar.gz coreboot-0292703b967f690f1770521804d0a5992941a37e.tar.bz2 coreboot-0292703b967f690f1770521804d0a5992941a37e.zip | |
drivers/wwan/fm: Include option to add ACPI _DSD for DmaProperty
Similar to commit 09c047c, the WWAN device might be considered an
untrusted device by some platforms, therefore add an option to add the
same `DmaProperty` to the WWAN _DSD.
BUG=b:215424986
BRANCH=brya
TEST=dump SSDT, see new property
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Change-Id: If485ac5314fae6e6faefac43fcfcea4f4cdd02c0
Reviewed-on: https://review.coreboot.org/c/coreboot/+/62436
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: EricR Lai <ericr_lai@compal.corp-partner.google.com>
Diffstat (limited to 'src')
| -rw-r--r-- | src/drivers/wwan/fm/acpi_fm350gl.c | 9 | ||||
| -rw-r--r-- | src/drivers/wwan/fm/chip.h | 3 |
2 files changed, 12 insertions, 0 deletions
diff --git a/src/drivers/wwan/fm/acpi_fm350gl.c b/src/drivers/wwan/fm/acpi_fm350gl.c index 80370ad4ab9a..dbc4f2429db9 100644 --- a/src/drivers/wwan/fm/acpi_fm350gl.c +++ b/src/drivers/wwan/fm/acpi_fm350gl.c @@ -241,6 +241,14 @@ static void wwan_fm350gl_acpi_fill_ssdt(const struct device *dev) wwan_fm350gl_acpi_method_shrf(parent, config); wwan_fm350gl_acpi_method_rst(parent, config); wwan_fm350gl_acpi_method_dpts(parent, config); + + if (config->add_acpi_dma_property) { + struct acpi_dp *dsd; + dsd = acpi_dp_new_table("_DSD"); + acpi_dp_add_integer(dsd, "DmaProperty", 1); + acpi_dp_write(dsd); + } + /* NOTE: the 5G driver will call MRST._RST to trigger a cold reset * during firmware update. */ @@ -249,6 +257,7 @@ static void wwan_fm350gl_acpi_fill_ssdt(const struct device *dev) acpigen_write_ADR(0); wwan_fm350gl_acpi_method_mrst_rst(parent, config); } + acpigen_write_device_end(); /* Device */ } acpigen_write_device_end(); /* Device */ diff --git a/src/drivers/wwan/fm/chip.h b/src/drivers/wwan/fm/chip.h index 635178bd16e0..19bc4c90083f 100644 --- a/src/drivers/wwan/fm/chip.h +++ b/src/drivers/wwan/fm/chip.h @@ -20,6 +20,9 @@ struct drivers_wwan_fm_config { /* Pointer to the corresponding RTD3 */ DEVTREE_CONST struct device *rtd3dev; + + /* Add `DmaProperty` in _DSD */ + bool add_acpi_dma_property; }; #endif /* __DRIVERS_WWAN_FM_CHIP_H__ */ |