diff options
Diffstat (limited to 'src/drivers/wwan')
| -rw-r--r-- | src/drivers/wwan/fm/acpi_fm350gl.c | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/src/drivers/wwan/fm/acpi_fm350gl.c b/src/drivers/wwan/fm/acpi_fm350gl.c index df91389f22..46f8ecb9af 100644 --- a/src/drivers/wwan/fm/acpi_fm350gl.c +++ b/src/drivers/wwan/fm/acpi_fm350gl.c @@ -3,6 +3,7 @@ #include <acpi/acpigen.h> #include <acpi/acpi_device.h> #include "chip.h" +#include "soc/intel/common/block/include/intelblocks/acpi.h" #include "soc/intel/common/block/pcie/rtd3/chip.h" /* FCPO# to RESET# delay time during WWAN ON */ @@ -56,6 +57,17 @@ static void wwan_fm350gl_acpi_method_fhrf(const struct device *parent_dev, { acpigen_write_method_serialized("FHRF", 1); { + char mutex_path[128]; + const struct soc_intel_common_block_pcie_rtd3_config *rtd3_config; + + rtd3_config = config_of(config->rtd3dev); + if (rtd3_config->use_rp_mutex) { + snprintf(mutex_path, sizeof(mutex_path), acpi_device_path_join(parent_dev, + RP_MUTEX_NAME)); + /* Acquire root port mutex in case FHRF is called directly and not called from _RST */ + acpigen_write_acquire(mutex_path, ACPI_MUTEX_NO_TIMEOUT); + } + /* LOCAL0 = PERST# */ acpigen_get_tx_gpio(&config->perst_gpio); acpigen_write_if_lequal_op_int(LOCAL0_OP, 0); @@ -97,6 +109,9 @@ static void wwan_fm350gl_acpi_method_fhrf(const struct device *parent_dev, acpigen_write_if_end(); /* If */ } acpigen_pop_len(); /* Else */ + + if (rtd3_config->use_rp_mutex) + acpigen_write_release(mutex_path); } acpigen_write_method_end(); /* Method */ } @@ -109,6 +124,17 @@ static void wwan_fm350gl_acpi_method_shrf(const struct device *parent_dev, { acpigen_write_method_serialized("SHRF", 0); { + char mutex_path[128]; + const struct soc_intel_common_block_pcie_rtd3_config *rtd3_config; + + rtd3_config = config_of(config->rtd3dev); + if (rtd3_config->use_rp_mutex) { + snprintf(mutex_path, sizeof(mutex_path), acpi_device_path_join(parent_dev, + RP_MUTEX_NAME)); + /* Acquire root port mutex */ + acpigen_write_acquire(mutex_path, ACPI_MUTEX_NO_TIMEOUT); + } + /* call rtd3 method to Disable ModPHY Power Gating. */ if (wwan_fm350gl_get_rtd3_method_support(config) & ACPI_PCIE_RP_EMIT_PSD0) { @@ -137,6 +163,9 @@ static void wwan_fm350gl_acpi_method_shrf(const struct device *parent_dev, "L23D")); } acpigen_write_sleep(FM350GL_TIME_HW_INIT); + + if (rtd3_config->use_rp_mutex) + acpigen_write_release(mutex_path); } acpigen_write_method_end(); /* Method */ } @@ -150,6 +179,17 @@ static void wwan_fm350gl_acpi_method_rst(const struct device *parent_dev, { acpigen_write_method_serialized("_RST", 0); { + char mutex_path[128]; + const struct soc_intel_common_block_pcie_rtd3_config *rtd3_config; + + rtd3_config = config_of(config->rtd3dev); + if (rtd3_config->use_rp_mutex) { + snprintf(mutex_path, sizeof(mutex_path), acpi_device_path_join(parent_dev, + RP_MUTEX_NAME)); + /* Acquire root port mutex */ + acpigen_write_acquire(mutex_path, ACPI_MUTEX_NO_TIMEOUT); + } + /* Perform 1st Half of FLDR Flow for soft reset: FHRF(0) */ acpigen_emit_namestring("FHRF"); acpigen_emit_byte(RESET_TYPE_WARM); @@ -158,6 +198,9 @@ static void wwan_fm350gl_acpi_method_rst(const struct device *parent_dev, /* Indicates that the following _Off will be skipped. */ acpigen_emit_byte(INCREMENT_OP); acpigen_emit_namestring(acpi_device_path_join(parent_dev, "RTD3.OFSK")); + + if (rtd3_config->use_rp_mutex) + acpigen_write_release(mutex_path); } acpigen_write_method_end(); /* Method */ } @@ -171,6 +214,17 @@ static void wwan_fm350gl_acpi_method_mrst_rst(const struct device *parent_dev, { acpigen_write_method_serialized("_RST", 0); { + char mutex_path[128]; + const struct soc_intel_common_block_pcie_rtd3_config *rtd3_config; + + rtd3_config = config_of(config->rtd3dev); + if (rtd3_config->use_rp_mutex) { + snprintf(mutex_path, sizeof(mutex_path), acpi_device_path_join(parent_dev, + RP_MUTEX_NAME)); + /* Acquire root port mutex */ + acpigen_write_acquire(mutex_path, ACPI_MUTEX_NO_TIMEOUT); + } + /* Perform 1st Half of FLDR Flow for cold reset: FHRF (1) */ acpigen_emit_namestring("FHRF"); acpigen_emit_byte(RESET_TYPE_COLD); @@ -180,6 +234,9 @@ static void wwan_fm350gl_acpi_method_mrst_rst(const struct device *parent_dev, driver removal */ acpigen_emit_byte(INCREMENT_OP); acpigen_emit_namestring(acpi_device_path_join(parent_dev, "RTD3.OFSK")); + + if (rtd3_config->use_rp_mutex) + acpigen_write_release(mutex_path); } acpigen_write_method_end(); /* Method */ } @@ -211,6 +268,7 @@ static void wwan_fm350gl_acpi_fill_ssdt(const struct device *dev) const struct drivers_wwan_fm_config *config = config_of(dev); const struct device *parent = dev->bus->dev; const char *scope = acpi_device_path(parent); + const struct soc_intel_common_block_pcie_rtd3_config *rtd3_config; if (!is_dev_enabled(parent)) { printk(BIOS_ERR, "%s: root port not enabled\n", __func__); @@ -226,6 +284,12 @@ static void wwan_fm350gl_acpi_fill_ssdt(const struct device *dev) __func__, scope); return; } + + rtd3_config = config_of(config->rtd3dev); + if (!rtd3_config->use_rp_mutex) + printk(BIOS_WARNING, "%s: RTD3 must use root port mutex.\n", + __func__); + printk(BIOS_INFO, "%s: Enable WWAN for %s (%s)\n", scope, dev_path(parent), config->desc ?: dev->chip_ops->name); acpigen_write_scope(scope); |