Furquan Shaikh has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/46033 )
Change subject: drivers/wifi: Drop maxsleep parameter from chip config ......................................................................
drivers/wifi: Drop maxsleep parameter from chip config
This change drops maxsleep parameter from chip config and instead hardcodes the deepest sleep state from which the WiFi device can wake the system up from to SLP_TYP_S3. This is similar to how other device drivers in coreboot report _PRW property in ACPI. It relieves the users from adding another register attribute to devicetree since all mainboards configure the same value. If this changes in the future, it should be easy to bring the maxsleep config parameter back.
BUG=b:169802515 BRANCH=zork
Change-Id: I42131fced008da0d51f0f777b7f2d99deaf68827 Signed-off-by: Furquan Shaikh furquan@google.com --- M src/drivers/intel/wifi/wifi.c M src/drivers/wifi/generic/chip.h M src/drivers/wifi/generic/generic.c M src/mainboard/google/dedede/variants/madoo/overridetree.cb M src/mainboard/google/dedede/variants/magolor/overridetree.cb M src/mainboard/google/dedede/variants/waddledee/overridetree.cb 6 files changed, 3 insertions(+), 10 deletions(-)
git pull ssh://review.coreboot.org:29418/coreboot refs/changes/33/46033/1
diff --git a/src/drivers/intel/wifi/wifi.c b/src/drivers/intel/wifi/wifi.c index f768b04..6010673 100644 --- a/src/drivers/intel/wifi/wifi.c +++ b/src/drivers/intel/wifi/wifi.c @@ -49,11 +49,9 @@ struct drivers_intel_wifi_config *config = dev->chip_info; struct drivers_wifi_generic_config generic_config;
- if (config) { + if (config) generic_config.wake = config->wake; - /* By default, all intel wifi chips wake from S3 */ - generic_config.maxsleep = 3; - } + wifi_generic_fill_ssdt(dev, config ? &generic_config : NULL); } #endif diff --git a/src/drivers/wifi/generic/chip.h b/src/drivers/wifi/generic/chip.h index fe3a1d1..02ab504 100644 --- a/src/drivers/wifi/generic/chip.h +++ b/src/drivers/wifi/generic/chip.h @@ -6,11 +6,9 @@ /** * struct drivers_wifi_generic_config - Data structure to contain generic wifi config * @wake: Wake pin for ACPI _PRW - * @maxsleep: Maximum sleep state to wake from */ struct drivers_wifi_generic_config { unsigned int wake; - unsigned int maxsleep; };
/** diff --git a/src/drivers/wifi/generic/generic.c b/src/drivers/wifi/generic/generic.c index 059185d..903afdc 100644 --- a/src/drivers/wifi/generic/generic.c +++ b/src/drivers/wifi/generic/generic.c @@ -189,7 +189,7 @@
/* Wake capabilities */ if (config) - acpigen_write_PRW(config->wake, config->maxsleep); + acpigen_write_PRW(config->wake, SLP_TYP_S3);
/* Fill regulatory domain structure */ if (CONFIG(HAVE_REGULATORY_DOMAIN)) { diff --git a/src/mainboard/google/dedede/variants/madoo/overridetree.cb b/src/mainboard/google/dedede/variants/madoo/overridetree.cb index 039fd10..257f917 100644 --- a/src/mainboard/google/dedede/variants/madoo/overridetree.cb +++ b/src/mainboard/google/dedede/variants/madoo/overridetree.cb @@ -103,7 +103,6 @@ device pci 1c.7 on chip drivers/wifi/generic register "wake" = "GPE0_DW2_03" - register "maxsleep" = "3" device pci 00.0 on end end end # PCI Express Root Port 8 - WLAN diff --git a/src/mainboard/google/dedede/variants/magolor/overridetree.cb b/src/mainboard/google/dedede/variants/magolor/overridetree.cb index 8a83b83..f41e9fa 100644 --- a/src/mainboard/google/dedede/variants/magolor/overridetree.cb +++ b/src/mainboard/google/dedede/variants/magolor/overridetree.cb @@ -287,7 +287,6 @@ device pci 1c.7 on chip drivers/wifi/generic register "wake" = "GPE0_DW2_03" - register "maxsleep" = "3" device pci 00.0 on end end end # PCI Express Root Port 8 - WLAN diff --git a/src/mainboard/google/dedede/variants/waddledee/overridetree.cb b/src/mainboard/google/dedede/variants/waddledee/overridetree.cb index a525a0f..22a08a0 100644 --- a/src/mainboard/google/dedede/variants/waddledee/overridetree.cb +++ b/src/mainboard/google/dedede/variants/waddledee/overridetree.cb @@ -147,7 +147,6 @@ device pci 1c.7 on chip drivers/wifi/generic register "wake" = "GPE0_DW2_03" - register "maxsleep" = "3" device pci 00.0 on end end end # PCI Express Root Port 8 - WLAN