diff options
| -rw-r--r-- | src/drivers/wwan/fm/acpi_fm350gl.c | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/src/drivers/wwan/fm/acpi_fm350gl.c b/src/drivers/wwan/fm/acpi_fm350gl.c index 67bd4a14e6..80370ad4ab 100644 --- a/src/drivers/wwan/fm/acpi_fm350gl.c +++ b/src/drivers/wwan/fm/acpi_fm350gl.c @@ -184,6 +184,22 @@ static void wwan_fm350gl_acpi_method_mrst_rst(const struct device *parent_dev, acpigen_write_method_end(); /* Method */ } +/* + * Generate DPTS (Device Prepare To Seep) Method. This is called in + * \.SB.MPTS Method. + */ +static void wwan_fm350gl_acpi_method_dpts(const struct device *parent_dev, + const struct drivers_wwan_fm_config *config) +{ + acpigen_write_method_serialized("DPTS", 1); + { + /* Perform 1st Half of FLDR Flow for cold reset: FHRF (1) */ + acpigen_emit_namestring("FHRF"); + acpigen_emit_byte(RESET_TYPE_COLD); + } + acpigen_write_method_end(); /* Method */ +} + static const char *wwan_fm350gl_acpi_name(const struct device *dev) { /* Attached device name must be "PXSX" for the Linux Kernel to recognize it. */ @@ -224,6 +240,7 @@ static void wwan_fm350gl_acpi_fill_ssdt(const struct device *dev) wwan_fm350gl_acpi_method_fhrf(parent, config); wwan_fm350gl_acpi_method_shrf(parent, config); wwan_fm350gl_acpi_method_rst(parent, config); + wwan_fm350gl_acpi_method_dpts(parent, config); /* NOTE: the 5G driver will call MRST._RST to trigger a cold reset * during firmware update. */ @@ -243,7 +260,7 @@ static struct device_operations wwan_fm350gl_ops = { .read_resources = noop_read_resources, .set_resources = noop_set_resources, .acpi_fill_ssdt = wwan_fm350gl_acpi_fill_ssdt, - .acpi_name = wwan_fm350gl_acpi_name, + .acpi_name = wwan_fm350gl_acpi_name }; static void wwan_fm350gl_acpi_enable(struct device *dev) |