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drivers/wwan/fm: Add support for _PTS for Fibocom 5G WWAN 

Add DPTS (device prepare to sleep) method that is to be called in
mainboard's \_SB.MPTS, which is called in _PTS.

Signed-off-by: Cliff Huang <cliff.huang@intel.com>
Change-Id: Ie308f74940a33711a398bc11d0550cb06b55cdcf
Reviewed-on: https://review.coreboot.org/c/coreboot/+/61886
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
This commit is contained in:
Cliff Huang 2022-02-11 17:46:00 -08:00 committed by Felix Held
parent f514b8ae82
commit 96bb0ba9e7
1 changed files with 18 additions and 1 deletions
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19
src/drivers/wwan/fm/acpi_fm350gl.c
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@ -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)