public inbox for linux-kernel@vger.kernel.org
 help / color / mirror / Atom feed
From: Avinash Bhatt <avinash.bhatt@intel.com>
To: devicetree@vger.kernel.org, linux-wireless@vger.kernel.org
Cc: robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org,
	johannes@sipsolutions.net, miriam.rachel.korenblit@intel.com,
	linux-kernel@vger.kernel.org, kobi.guetta@intel.com,
	emmanuel.grumbach@intel.com, avinash.bhatt@intel.com
Subject: [PATCH v2 2/3] wifi: iwlwifi: dt: add Device Tree BIOS configuration infrastructure
Date: Mon,  4 May 2026 12:53:26 +0300	[thread overview]
Message-ID: <20260504095327.30892-3-avinash.bhatt@intel.com> (raw)
In-Reply-To: <20260504095327.30892-1-avinash.bhatt@intel.com>

On platforms that use Device Tree and do not provide UEFI variables or
ACPI methods, discrete Intel Wi-Fi adapters have no way to receive BIOS
configuration. Add Device Tree as a supported configuration source for
SAR limits and 6 GHz AP type support, with stub hooks for TAS and
per-platform antenna gain tables.

DT support is gated on CONFIG_OF and is a no-op on x86. BIOS_SOURCE_DT
is added to enum bios_source to track the configuration origin.

Signed-off-by: Avinash Bhatt <avinash.bhatt@intel.com>
---
 drivers/net/wireless/intel/iwlwifi/Makefile   |   1 +
 drivers/net/wireless/intel/iwlwifi/fw/acpi.h  |   5 +-
 .../wireless/intel/iwlwifi/fw/api/nvm-reg.h   |   4 +-
 drivers/net/wireless/intel/iwlwifi/fw/dt.c    | 321 ++++++++++++++++++
 drivers/net/wireless/intel/iwlwifi/fw/dt.h    | 123 +++++++
 .../wireless/intel/iwlwifi/fw/regulatory.h    |   3 +-
 6 files changed, 451 insertions(+), 6 deletions(-)
 create mode 100644 drivers/net/wireless/intel/iwlwifi/fw/dt.c
 create mode 100644 drivers/net/wireless/intel/iwlwifi/fw/dt.h

diff --git a/drivers/net/wireless/intel/iwlwifi/Makefile b/drivers/net/wireless/intel/iwlwifi/Makefile
index 941257b811b4..445c8a26b6bd 100644
--- a/drivers/net/wireless/intel/iwlwifi/Makefile
+++ b/drivers/net/wireless/intel/iwlwifi/Makefile
@@ -38,6 +38,7 @@ iwlwifi-$(CONFIG_IWLMVM) += fw/paging.o fw/smem.o fw/init.o
 iwlwifi-$(CONFIG_IWLMLD) += fw/smem.o fw/init.o
 iwlwifi-$(CONFIG_ACPI) += fw/acpi.o
 iwlwifi-$(CONFIG_EFI)	+= fw/uefi.o
+iwlwifi-$(CONFIG_OF)	+= fw/dt.o
 iwlwifi-$(CONFIG_IWLWIFI_DEBUGFS) += fw/debugfs.o
 
 iwlwifi-objs += $(iwlwifi-m)
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/acpi.h b/drivers/net/wireless/intel/iwlwifi/fw/acpi.h
index 51a57e57de7a..45eb35ffb637 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/acpi.h
+++ b/drivers/net/wireless/intel/iwlwifi/fw/acpi.h
@@ -1,7 +1,7 @@
 /* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */
 /*
  * Copyright (C) 2017 Intel Deutschland GmbH
- * Copyright (C) 2018-2023, 2025 Intel Corporation
+ * Copyright (C) 2018-2023, 2025-2026 Intel Corporation
  */
 #ifndef __iwl_fw_acpi__
 #define __iwl_fw_acpi__
@@ -111,9 +111,6 @@
 #define ACPI_PPAG_WIFI_DATA_SIZE_V3	((ACPI_PPAG_NUM_CHAINS * \
 					  ACPI_PPAG_NUM_BANDS_V3) + 2)
 
-#define IWL_SAR_ENABLE_MSK		BIT(0)
-#define IWL_REDUCE_POWER_FLAGS_POS	1
-
 /* The Inidcator whether UEFI WIFI GUID tables are locked is read from ACPI */
 #define UEFI_WIFI_GUID_UNLOCKED		0
 
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/api/nvm-reg.h b/drivers/net/wireless/intel/iwlwifi/fw/api/nvm-reg.h
index 443a9a416325..39289bf3a193 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/api/nvm-reg.h
+++ b/drivers/net/wireless/intel/iwlwifi/fw/api/nvm-reg.h
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */
 /*
- * Copyright (C) 2012-2014, 2018-2025 Intel Corporation
+ * Copyright (C) 2012-2014, 2018-2026 Intel Corporation
  * Copyright (C) 2013-2015 Intel Mobile Communications GmbH
  * Copyright (C) 2016-2017 Intel Deutschland GmbH
  */
@@ -495,11 +495,13 @@ struct iwl_tas_config_cmd_v2_v4 {
  * @BIOS_SOURCE_NONE: BIOS source is not defined
  * @BIOS_SOURCE_ACPI: BIOS source is ACPI
  * @BIOS_SOURCE_UEFI: BIOS source is UEFI
+ * @BIOS_SOURCE_DT: BIOS source is Device Tree
  */
 enum bios_source {
 	BIOS_SOURCE_NONE,
 	BIOS_SOURCE_ACPI,
 	BIOS_SOURCE_UEFI,
+	BIOS_SOURCE_DT,
 };
 
 /**
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/dt.c b/drivers/net/wireless/intel/iwlwifi/fw/dt.c
new file mode 100644
index 000000000000..4f3d098204f0
--- /dev/null
+++ b/drivers/net/wireless/intel/iwlwifi/fw/dt.c
@@ -0,0 +1,321 @@
+// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
+/*
+ * Copyright (C) 2026 Intel Corporation
+ */
+#include <linux/of.h>
+#include "iwl-drv.h"
+#include "iwl-debug.h"
+#include "fw/runtime.h"
+#include "fw/regulatory.h"
+#include "dt.h"
+
+/* DT property names */
+#define IWL_DT_PROP_WRDS			"intel,wrds"
+#define IWL_DT_PROP_UATS			"intel,uats"
+#define IWL_DT_PROP_SPLC			"intel,splc"
+#define IWL_DT_PROP_WBEM			"intel,wbem"
+#define IWL_DT_PROP_WCPE			"intel,wcpe"
+#define IWL_DT_WCPE_USA_EN			BIT(0)
+#define IWL_DT_WCPE_CANADA_EN			BIT(1)
+#define IWL_DT_WCPE_MASK (IWL_DT_WCPE_USA_EN | \
+			  IWL_DT_WCPE_CANADA_EN)
+#define IWL_DT_PROP_SRD				"intel,srd"
+#define IWL_DT_PROP_6E_UHB			"intel,6e-uhb"
+#define IWL_DT_PROP_REG_SPECIAL			"intel,regulatory-special"
+#define IWL_DT_PROP_ACTIVATE_CH			"intel,activate-channel"
+#define IWL_DT_PROP_FORCE_DISABLE_CH		"intel,force-disable-channels"
+#define IWL_DT_PROP_11BE			"intel,11be"
+
+/* Supported revision values for each DT property */
+#define IWL_DT_WRDS_REVISION		3
+#define IWL_DT_UATS_REVISION		1
+
+/* SAR layout for "intel,wrds" revision 3 (mirrors ACPI_SAR_NUM_CHAINS_REV2
+ * and UEFI_SAR_SUB_BANDS_NUM_REV3): 4 chains x 12 subbands
+ */
+#define IWL_DT_WRDS_NUM_CHAINS		4
+#define IWL_DT_WRDS_NUM_SUBBANDS	12
+/* Total cell count for "intel,wrds" property: 2-cell header + SAR data */
+#define IWL_DT_WRDS_MAX_CELLS \
+	(2 + IWL_DT_WRDS_NUM_CHAINS * IWL_DT_WRDS_NUM_SUBBANDS)
+
+/**
+ * iwl_dt_get_wrds_table - read SAR power limits from DT "intel,wrds" property
+ * @fwrt: firmware runtime context
+ *
+ * Reads per-chain, per-subband SAR power limits from the "intel,wrds"
+ * Device Tree property and populates the SAR profile.
+ *
+ * Return: 0 on success, -ENOENT if the property or DT node is absent,
+ * or a negative error code for malformed data.
+ */
+int iwl_dt_get_wrds_table(struct iwl_fw_runtime *fwrt)
+{
+	struct device_node *node = dev_of_node(fwrt->dev);
+	u32 buf[IWL_DT_WRDS_MAX_CELLS];
+	u8 num_chains, num_subbands;
+	int ret;
+
+	if (!node)
+		return -ENOENT;
+
+	ret = of_property_read_u32_array(node, IWL_DT_PROP_WRDS, buf,
+					 IWL_DT_WRDS_MAX_CELLS);
+	if (ret) {
+		IWL_DEBUG_RADIO(fwrt, "WRDS DT: read failed (%d)\n", ret);
+		return ret;
+	}
+
+	if (buf[0] != IWL_DT_WRDS_REVISION) {
+		IWL_DEBUG_RADIO(fwrt,
+				"WRDS DT: revision %u not supported (only %u)\n",
+				buf[0], IWL_DT_WRDS_REVISION);
+		return -EINVAL;
+	}
+
+	num_chains   = IWL_DT_WRDS_NUM_CHAINS;
+	num_subbands = IWL_DT_WRDS_NUM_SUBBANDS;
+
+	IWL_DEBUG_RADIO(fwrt,
+			"Reading WRDS from Device Tree (revision %u, %u chains, %u subbands)\n",
+			buf[0], num_chains, num_subbands);
+
+	/* buf[1] bit 0 (IWL_SAR_ENABLE_MSK): enable SAR */
+
+	BUILD_BUG_ON(IWL_DT_WRDS_NUM_CHAINS > BIOS_SAR_MAX_CHAINS_PER_PROFILE);
+	BUILD_BUG_ON(IWL_DT_WRDS_NUM_SUBBANDS > BIOS_SAR_MAX_SUB_BANDS_NUM);
+
+	/* buf[2..]: chains[0..N-1] x subbands[0..M-1] in row-major order */
+	for (int i = 0; i < num_chains; i++) {
+		for (int j = 0; j < num_subbands; j++) {
+			u32 val = buf[2 + i * num_subbands + j];
+
+			if (val > U8_MAX) {
+				IWL_DEBUG_RADIO(fwrt,
+						"DT: WRDS OOB [%u][%u]=%u\n",
+						i, j, val);
+				return -EINVAL;
+			}
+			fwrt->sar_profiles[0].chains[i].subbands[j] = (u8)val;
+		}
+	}
+
+	if (buf[1] & IWL_SAR_ENABLE_MSK)
+		fwrt->sar_profiles[0].enabled = true;
+
+	return 0;
+}
+
+/**
+ * iwl_dt_get_uats_table - read UHB AP type support table from DT "intel,uats"
+ * @fwrt: firmware runtime context
+ *
+ * Reads the UHB AP type support table from the "intel,uats" Device Tree
+ * property and stores the MCC-to-AP-type map for use by the firmware command.
+ */
+void iwl_dt_get_uats_table(struct iwl_fw_runtime *fwrt)
+{
+	size_t map_size = sizeof(fwrt->ap_type_cmd.mcc_to_ap_type_map);
+	struct device_node *node = dev_of_node(fwrt->dev);
+	const u8 *prop_data;
+	int len;
+
+	if (!node)
+		return;
+
+	prop_data = of_get_property(node, IWL_DT_PROP_UATS, &len);
+	if (!prop_data) {
+		IWL_DEBUG_FW(fwrt, "UATS DT: property absent\n");
+		return;
+	}
+
+	if (len != (int)(1 + map_size)) {
+		IWL_DEBUG_FW(fwrt, "UATS DT: bad length %d (expected %zu)\n",
+			     len, 1 + map_size);
+		return;
+	}
+
+	if (prop_data[0] != IWL_DT_UATS_REVISION) {
+		IWL_DEBUG_FW(fwrt,
+			     "UATS DT: revision %u not supported (expected %u)\n",
+			     prop_data[0], IWL_DT_UATS_REVISION);
+		return;
+	}
+
+	IWL_DEBUG_FW(fwrt, "Reading UATS table from Device Tree\n");
+
+	/* prop_data[0]=revision, prop_data[1+]=26x13 MCC to AP type map */
+	memcpy(fwrt->ap_type_cmd.mcc_to_ap_type_map, prop_data + 1, map_size);
+	fwrt->ap_type_cmd_valid = true;
+}
+IWL_EXPORT_SYMBOL(iwl_dt_get_uats_table);
+
+/*
+ * Mapping from DSM function index to Device Tree property name.
+ * Returns the DT property name for a given DSM function, or NULL if the
+ * function has no Device Tree representation.
+ */
+static const char *dsm_func_to_prop_name(enum iwl_dsm_funcs func)
+{
+	switch (func) {
+	case DSM_FUNC_DISABLE_SRD:          return IWL_DT_PROP_SRD;
+	case DSM_FUNC_ENABLE_6E:            return IWL_DT_PROP_6E_UHB;
+	case DSM_FUNC_REGULATORY_CONFIG:    return IWL_DT_PROP_REG_SPECIAL;
+	case DSM_FUNC_ACTIVATE_CHANNEL:     return IWL_DT_PROP_ACTIVATE_CH;
+	case DSM_FUNC_FORCE_DISABLE_CHANNELS:
+		return IWL_DT_PROP_FORCE_DISABLE_CH;
+	case DSM_FUNC_ENABLE_11BE:          return IWL_DT_PROP_11BE;
+	default:                            return NULL;
+	}
+}
+
+/**
+ * iwl_dt_get_dsm - read one OEM DSM function value from Device Tree
+ * @fwrt: firmware runtime context
+ * @func: DSM function index (enum iwl_dsm_funcs)
+ * @value: output value
+ *
+ * Reads the DT property for @func on every call without caching.
+ * Unlike the ACPI/UEFI paths, the shared dsm_funcs_valid/dsm_values[]
+ * fields are not used here.
+ *
+ * Return: 0 on success, -ENOENT if no DT node, -EOPNOTSUPP if the function
+ * has no DT representation, -ENODATA if the property is absent,
+ * -EINVAL if the property revision is unsupported.
+ */
+int iwl_dt_get_dsm(struct iwl_fw_runtime *fwrt, enum iwl_dsm_funcs func,
+		   u32 *value)
+{
+	struct device_node *node = dev_of_node(fwrt->dev);
+	const char *prop;
+	u32 buf[2];
+
+	if (!node)
+		return -ENOENT;
+
+	if (func >= DSM_FUNC_NUM_FUNCS)
+		return -EOPNOTSUPP;
+
+	prop = dsm_func_to_prop_name(func);
+	if (!prop)
+		return -EOPNOTSUPP;
+
+	if (of_property_read_u32_array(node, prop, buf, ARRAY_SIZE(buf)))
+		return -ENODATA;
+
+	if (buf[0] != 0) {
+		IWL_DEBUG_RADIO(fwrt,
+				"DT: DSM func %d (%s) unsupported revision %u\n",
+				func, prop, buf[0]);
+		return -EINVAL;
+	}
+
+	if (fwrt->dsm_source == BIOS_SOURCE_NONE) {
+		fwrt->dsm_source = BIOS_SOURCE_DT;
+		fwrt->dsm_revision = 0;
+	}
+
+	*value = buf[1];
+	IWL_DEBUG_RADIO(fwrt, "DT: DSM func=%d (%s) val=%u\n",
+			func, prop, *value);
+	return 0;
+}
+
+/**
+ * iwl_dt_get_pwr_limit - read static platform power limit from DT "intel,splc"
+ * @fwrt: firmware runtime context
+ * @data: output power limit in mW
+ *
+ * Reads the 2-cell "intel,splc" DT property: [revision, power_limit_mw].
+ * Return: 0 on success, -ENOENT if absent, -EINVAL for unsupported revision.
+ */
+int iwl_dt_get_pwr_limit(struct iwl_fw_runtime *fwrt, u64 *data)
+{
+	struct device_node *node = dev_of_node(fwrt->dev);
+	u32 buf[2];
+	int ret;
+
+	if (!node)
+		return -ENOENT;
+
+	ret = of_property_read_u32_array(node, IWL_DT_PROP_SPLC,
+					 buf, ARRAY_SIZE(buf));
+	if (ret)
+		return ret;
+
+	if (buf[0] != 0) {
+		IWL_DEBUG_RADIO(fwrt, "DT: splc unsupported revision %u\n",
+				buf[0]);
+		return -EINVAL;
+	}
+
+	*data = buf[1];
+	IWL_DEBUG_RADIO(fwrt, "DT: Read SPLC power limit %llu mW\n", *data);
+	return 0;
+}
+
+/**
+ * iwl_dt_get_wbem - read 320 MHz per-MCC enablement from DT "intel,wbem"
+ * @fwrt: firmware runtime context
+ * @data: output bitmask (bit 0 = Japan, bit 1 = South Korea)
+ *
+ * Reads the 2-cell "intel,wbem" DT property: [revision, wifi320mhz_mcc].
+ * Return: 0 on success, -ENOENT if absent, -EINVAL for unsupported revision.
+ */
+int iwl_dt_get_wbem(struct iwl_fw_runtime *fwrt, u32 *data)
+{
+	struct device_node *node = dev_of_node(fwrt->dev);
+	u32 buf[2];
+	int ret;
+
+	if (!node)
+		return -ENOENT;
+
+	ret = of_property_read_u32_array(node, IWL_DT_PROP_WBEM,
+					 buf, ARRAY_SIZE(buf));
+	if (ret)
+		return ret;
+
+	if (buf[0] != 0) {
+		IWL_DEBUG_RADIO(fwrt, "DT: wbem unsupported revision %u\n",
+				buf[0]);
+		return -EINVAL;
+	}
+
+	*data = buf[1];
+	IWL_DEBUG_RADIO(fwrt, "DT: Read WBEM config 0x%x\n", *data);
+	return 0;
+}
+
+/**
+ * iwl_dt_get_puncturing - read channel puncturing config from DT "intel,wcpe"
+ * @fwrt: firmware runtime context
+ *
+ * Reads the 2-cell "intel,wcpe" DT property: [revision, puncturing_bitmap].
+ * Return: the bitmask (bit 0 = USA, bit 1 = Canada), or 0 if absent
+ * or revision unsupported.
+ */
+int iwl_dt_get_puncturing(struct iwl_fw_runtime *fwrt)
+{
+	struct device_node *node = dev_of_node(fwrt->dev);
+	u32 buf[2];
+	int ret;
+
+	if (!node)
+		return 0;
+
+	ret = of_property_read_u32_array(node, IWL_DT_PROP_WCPE,
+					 buf, ARRAY_SIZE(buf));
+	if (ret)
+		return 0;
+
+	if (buf[0] != 0) {
+		IWL_DEBUG_RADIO(fwrt, "DT: wcpe unsupported revision %u\n",
+				buf[0]);
+		return 0;
+	}
+
+	IWL_DEBUG_RADIO(fwrt, "DT: Read WCPE puncturing config 0x%x\n", buf[1]);
+	return buf[1] & IWL_DT_WCPE_MASK;
+}
+IWL_EXPORT_SYMBOL(iwl_dt_get_puncturing);
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/dt.h b/drivers/net/wireless/intel/iwlwifi/fw/dt.h
new file mode 100644
index 000000000000..01d8eef2babc
--- /dev/null
+++ b/drivers/net/wireless/intel/iwlwifi/fw/dt.h
@@ -0,0 +1,123 @@
+/* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */
+/*
+ * Copyright (C) 2026 Intel Corporation
+ */
+#ifndef __iwl_fw_dt_h__
+#define __iwl_fw_dt_h__
+
+#include "fw/regulatory.h"
+
+/*
+ * Device Tree property parsing for Intel iwlwifi discrete Wi-Fi devices.
+ *
+ * On platforms without UEFI variables or ACPI methods, regulatory and
+ * power configuration can be supplied via Device Tree properties in the
+ * Wi-Fi PCIe device node. The following properties are supported:
+ *
+ *   intel,wrds                 - SAR power limits (WRDS, revision 3)
+ *   intel,uats                 - UHB AP type support table (UATS, revision 1)
+ *   intel,splc                 - static platform power limit
+ *   intel,wbem                 - 320 MHz per-MCC enablement
+ *   intel,wcpe                 - channel puncturing enablement
+ *   intel,srd                  - ETSI SRD channel configuration
+ *   intel,6e-uhb               - 6 GHz UHB country enable bitmask
+ *   intel,regulatory-special   - regulatory special configuration
+ *   intel,activate-channel     - indoor channel activation bitmask
+ *   intel,force-disable-channels - band force-disable bitmask
+ *   intel,11be                 - 802.11be per-country enable bitmask
+ *
+ * DT is the lowest-priority source: UEFI variables take precedence, then
+ * ACPI methods, and finally these DT properties.
+ */
+
+struct iwl_fw_runtime;
+
+#if IS_ENABLED(CONFIG_OF)
+
+/* Functions implemented in fw/dt.c */
+int iwl_dt_get_wrds_table(struct iwl_fw_runtime *fwrt);
+void iwl_dt_get_uats_table(struct iwl_fw_runtime *fwrt);
+int iwl_dt_get_dsm(struct iwl_fw_runtime *fwrt, enum iwl_dsm_funcs func,
+		   u32 *value);
+int iwl_dt_get_pwr_limit(struct iwl_fw_runtime *fwrt, u64 *data);
+int iwl_dt_get_wbem(struct iwl_fw_runtime *fwrt, u32 *data);
+int iwl_dt_get_puncturing(struct iwl_fw_runtime *fwrt);
+
+#else /* !CONFIG_OF */
+
+static inline int iwl_dt_get_wrds_table(struct iwl_fw_runtime *fwrt)
+{
+	return -ENOENT;
+}
+
+static inline void iwl_dt_get_uats_table(struct iwl_fw_runtime *fwrt) {}
+
+static inline int iwl_dt_get_dsm(struct iwl_fw_runtime *fwrt,
+				 enum iwl_dsm_funcs func, u32 *value)
+{
+	return -ENOENT;
+}
+
+static inline int iwl_dt_get_pwr_limit(struct iwl_fw_runtime *fwrt, u64 *data)
+{
+	return -ENOENT;
+}
+
+static inline int iwl_dt_get_wbem(struct iwl_fw_runtime *fwrt, u32 *data)
+{
+	return -ENOENT;
+}
+
+static inline int iwl_dt_get_puncturing(struct iwl_fw_runtime *fwrt)
+{
+	return 0;
+}
+
+#endif /* CONFIG_OF */
+
+/*
+ * The following tables have no Device Tree implementation regardless of
+ * CONFIG_OF. Callers fall back gracefully when these return -ENOENT.
+ */
+static inline int iwl_dt_get_ppag_table(struct iwl_fw_runtime *fwrt)
+{
+	return -ENOENT;
+}
+
+static inline int iwl_dt_get_tas_table(struct iwl_fw_runtime *fwrt,
+				       struct iwl_tas_data *data)
+{
+	return -ENOENT;
+}
+
+static inline int iwl_dt_get_ewrd_table(struct iwl_fw_runtime *fwrt)
+{
+	return -ENOENT;
+}
+
+static inline int iwl_dt_get_wgds_table(struct iwl_fw_runtime *fwrt)
+{
+	return -ENOENT;
+}
+
+static inline int iwl_dt_get_phy_filters(struct iwl_fw_runtime *fwrt)
+{
+	return -ENOENT;
+}
+
+static inline int iwl_dt_get_mcc(struct iwl_fw_runtime *fwrt, char *data)
+{
+	return -ENOENT;
+}
+
+static inline int iwl_dt_get_eckv(struct iwl_fw_runtime *fwrt, u32 *data)
+{
+	return -ENOENT;
+}
+
+static inline int iwl_dt_get_dsbr(struct iwl_fw_runtime *fwrt, u32 *data)
+{
+	return -ENOENT;
+}
+
+#endif /* __iwl_fw_dt_h__ */
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/regulatory.h b/drivers/net/wireless/intel/iwlwifi/fw/regulatory.h
index 6fffc032efd3..22c97c75b83c 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/regulatory.h
+++ b/drivers/net/wireless/intel/iwlwifi/fw/regulatory.h
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */
 /*
- * Copyright (C) 2023-2025 Intel Corporation
+ * Copyright (C) 2023-2026 Intel Corporation
  */
 
 #ifndef __fw_regulatory_h__
@@ -30,6 +30,7 @@
 #define BIOS_GEO_MIN_PROFILE_NUM	3
 
 #define IWL_SAR_ENABLE_MSK		BIT(0)
+#define IWL_REDUCE_POWER_FLAGS_POS	1
 
 /* PPAG gain value bounds in 1/8 dBm */
 #define IWL_PPAG_MIN_LB	-16
-- 
2.34.1


  parent reply	other threads:[~2026-05-04  9:53 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-05-04  9:53 [PATCH v2 0/3] wifi: iwlwifi: add Device Tree hardware integration information Avinash Bhatt
2026-05-04  9:53 ` [PATCH v2 1/3] dt-bindings: net: wireless: intel,iwlwifi: add binding Avinash Bhatt
2026-05-05  9:15   ` Krzysztof Kozlowski
2026-05-04  9:53 ` Avinash Bhatt [this message]
2026-05-05  9:18   ` [PATCH v2 2/3] wifi: iwlwifi: dt: add Device Tree BIOS configuration infrastructure Krzysztof Kozlowski
2026-05-04  9:53 ` [PATCH v2 3/3] wifi: iwlwifi: dt: use Device Tree as fallback BIOS configuration source Avinash Bhatt
2026-05-05  9:19 ` [PATCH v2 0/3] wifi: iwlwifi: add Device Tree hardware integration information Krzysztof Kozlowski

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20260504095327.30892-3-avinash.bhatt@intel.com \
    --to=avinash.bhatt@intel.com \
    --cc=conor+dt@kernel.org \
    --cc=devicetree@vger.kernel.org \
    --cc=emmanuel.grumbach@intel.com \
    --cc=johannes@sipsolutions.net \
    --cc=kobi.guetta@intel.com \
    --cc=krzk+dt@kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-wireless@vger.kernel.org \
    --cc=miriam.rachel.korenblit@intel.com \
    --cc=robh@kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox