[PATCHv2 1/2] dt-bindings: ath10k: Add new dt entries to identify coex support

[PATCHv2 1/2] dt-bindings: ath10k: Add new dt entries to identify coex support

[Tamizh Chelvam]

This adds new dt entries qcom,coexist-support and qcom,coexist-gpio-pin
which will be used by ath10k driver to identify coex support
of a hardware and notify wifi firmware the gpio pin number.
This pin number information is needed for the hardware QCA4019.

Signed-off-by: Tamizh Chelvam <tamizhr@codeaurora.org>
---
 Documentation/devicetree/bindings/net/wireless/qcom,ath10k.txt | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Documentation/devicetree/bindings/net/wireless/qcom,ath10k.txt b/Documentation/devicetree/bindings/net/wireless/qcom,ath10k.txt
index 616c877..71bf91f 100644
--- a/Documentation/devicetree/bindings/net/wireless/qcom,ath10k.txt
+++ b/Documentation/devicetree/bindings/net/wireless/qcom,ath10k.txt
@@ -91,6 +91,11 @@ Optional properties:
 - qcom,msa-fixed-perm: Boolean context flag to disable SCM call for statically
 		       mapped msa region.
 
+- qcom,coexist-support : should contain eithr "0" or "1" to indicate coex
+			 support by the hardware.
+- qcom,coexist-gpio-pin : gpio pin number  information to support coex
+			  which will be used by wifi firmware.
+
 Example (to supply PCI based wifi block details):
 
 In this example, the node is defined as child node of the PCI controller.
@@ -159,6 +164,8 @@ wifi0: wifi@a000000 {
 	qcom,msi_addr = <0x0b006040>;
 	qcom,msi_base = <0x40>;
 	qcom,ath10k-pre-calibration-data = [ 01 02 03 ... ];
+	qcom,coexist-support = <1>;
+	qcom,coexist-gpio-pin = <0x33>;
 };
 
 Example (to supply wcn3990 SoC wifi block details):
-- 
1.9.1

[PATCHv2 1/2] dt-bindings: ath10k: Add new dt entries to identify coex support

[Tamizh Chelvam]

This adds new dt entries qcom,coexist-support and qcom,coexist-gpio-pin
which will be used by ath10k driver to identify coex support
of a hardware and notify wifi firmware the gpio pin number.
This pin number information is needed for the hardware QCA4019.

Signed-off-by: Tamizh Chelvam <tamizhr@codeaurora.org>
---
 Documentation/devicetree/bindings/net/wireless/qcom,ath10k.txt | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Documentation/devicetree/bindings/net/wireless/qcom,ath10k.txt b/Documentation/devicetree/bindings/net/wireless/qcom,ath10k.txt
index 616c877..71bf91f 100644
--- a/Documentation/devicetree/bindings/net/wireless/qcom,ath10k.txt
+++ b/Documentation/devicetree/bindings/net/wireless/qcom,ath10k.txt
@@ -91,6 +91,11 @@ Optional properties:
 - qcom,msa-fixed-perm: Boolean context flag to disable SCM call for statically
 		       mapped msa region.
 
+- qcom,coexist-support : should contain eithr "0" or "1" to indicate coex
+			 support by the hardware.
+- qcom,coexist-gpio-pin : gpio pin number  information to support coex
+			  which will be used by wifi firmware.
+
 Example (to supply PCI based wifi block details):
 
 In this example, the node is defined as child node of the PCI controller.
@@ -159,6 +164,8 @@ wifi0: wifi@a000000 {
 	qcom,msi_addr = <0x0b006040>;
 	qcom,msi_base = <0x40>;
 	qcom,ath10k-pre-calibration-data = [ 01 02 03 ... ];
+	qcom,coexist-support = <1>;
+	qcom,coexist-gpio-pin = <0x33>;
 };
 
 Example (to supply wcn3990 SoC wifi block details):
-- 
1.9.1

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[PATCHv2 2/2] ath10k: Add support to read btcoex related data from DT

[Tamizh Chelvam]

BTCOEX feature is not supported by all QCA4019 chipsets.
Since btcoex enabled by default in firmware, host needs to
enable COEX support depends on the hardware. Enabling it
by default in unsupported hardware will cause some
feature disabled in hardware.
This patch will read btcoex_support flag and
wlan priority gpio pin number from DT. Depends on the
btcoex_support flag value host will expose BTCOEX support
and wlan priority gpio pin number to target.

Testing:
	* Tested HW : QCA4019
	* Tested FW : 10.4-3.2.1.1-00017

Signed-off-by: Tamizh Chelvam <tamizhr@codeaurora.org>
---
v2:
  * Changed coex_support to bool type

 drivers/net/wireless/ath/ath10k/core.c  | 44 ++++++++++++++++++++++++++++++++-
 drivers/net/wireless/ath/ath10k/core.h  |  3 +++
 drivers/net/wireless/ath/ath10k/debug.c |  3 +++
 drivers/net/wireless/ath/ath10k/mac.c   |  3 ++-
 drivers/net/wireless/ath/ath10k/wmi.c   |  2 +-
 5 files changed, 52 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/core.c b/drivers/net/wireless/ath/ath10k/core.c
index 5ec16ce..5712e28 100644
--- a/drivers/net/wireless/ath/ath10k/core.c
+++ b/drivers/net/wireless/ath/ath10k/core.c
@@ -2119,6 +2119,40 @@ static int ath10k_download_cal_data(struct ath10k *ar)
 	return 0;
 }
 
+static void ath10k_core_fetch_btcoex_dt(struct ath10k *ar)
+{
+	struct device_node *node;
+	u8 coex_support = 0;
+	int ret;
+
+	node = ar->dev->of_node;
+	if (!node)
+		goto out;
+
+	ret = of_property_read_u8(node, "qcom,coexist-support", &coex_support);
+	if (ret) {
+		ar->coex_support = true;
+		goto out;
+	}
+
+	if (coex_support) {
+		ar->coex_support = true;
+	} else {
+		ar->coex_support = false;
+		ar->coex_gpio_pin = -1;
+		goto out;
+	}
+
+	ret = of_property_read_u32(node, "qcom,coexist-gpio-pin",
+				   &ar->coex_gpio_pin);
+	if (ret)
+		ar->coex_gpio_pin = -1;
+
+out:
+	ath10k_dbg(ar, ATH10K_DBG_BOOT, "boot coex_support %d coex_gpio_pin %d\n",
+		   ar->coex_support, ar->coex_gpio_pin);
+}
+
 static int ath10k_init_uart(struct ath10k *ar)
 {
 	int ret;
@@ -2696,14 +2730,22 @@ int ath10k_core_start(struct ath10k *ar, enum ath10k_firmware_mode mode,
 		if (test_bit(WMI_SERVICE_BSS_CHANNEL_INFO_64, ar->wmi.svc_map))
 			val |= WMI_10_4_BSS_CHANNEL_INFO_64;
 
+		ath10k_core_fetch_btcoex_dt(ar);
+
 		/* 10.4 firmware supports BT-Coex without reloading firmware
 		 * via pdev param. To support Bluetooth coexistence pdev param,
 		 * WMI_COEX_GPIO_SUPPORT of extended resource config should be
 		 * enabled always.
+		 *
+		 * We can still enable BTCOEX if firmware has the support
+		 * eventhough btceox_support value is
+		 * ATH10K_DT_BTCOEX_NOT_FOUND
 		 */
+
 		if (test_bit(WMI_SERVICE_COEX_GPIO, ar->wmi.svc_map) &&
 		    test_bit(ATH10K_FW_FEATURE_BTCOEX_PARAM,
-			     ar->running_fw->fw_file.fw_features))
+			     ar->running_fw->fw_file.fw_features) &&
+		    ar->coex_support)
 			val |= WMI_10_4_COEX_GPIO_SUPPORT;
 
 		if (test_bit(WMI_SERVICE_TDLS_EXPLICIT_MODE_ONLY,
diff --git a/drivers/net/wireless/ath/ath10k/core.h b/drivers/net/wireless/ath/ath10k/core.h
index 5101bf2..edf314e 100644
--- a/drivers/net/wireless/ath/ath10k/core.h
+++ b/drivers/net/wireless/ath/ath10k/core.h
@@ -1222,6 +1222,9 @@ struct ath10k {
 	struct ath10k_bus_params bus_param;
 	struct completion peer_delete_done;
 
+	bool coex_support;
+	int coex_gpio_pin;
+
 	/* must be last */
 	u8 drv_priv[0] __aligned(sizeof(void *));
 };
diff --git a/drivers/net/wireless/ath/ath10k/debug.c b/drivers/net/wireless/ath/ath10k/debug.c
index e000677..3894b77 100644
--- a/drivers/net/wireless/ath/ath10k/debug.c
+++ b/drivers/net/wireless/ath/ath10k/debug.c
@@ -1978,6 +1978,9 @@ static ssize_t ath10k_write_btcoex(struct file *file,
 	if (strtobool(buf, &val) != 0)
 		return -EINVAL;
 
+	if (!ar->coex_support)
+		return -EOPNOTSUPP;
+
 	mutex_lock(&ar->conf_mutex);
 
 	if (ar->state != ATH10K_STATE_ON &&
diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index 7fee35f..ac3ad5c 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -4982,7 +4982,8 @@ static int ath10k_start(struct ieee80211_hw *hw)
 	param = ar->wmi.pdev_param->enable_btcoex;
 	if (test_bit(WMI_SERVICE_COEX_GPIO, ar->wmi.svc_map) &&
 	    test_bit(ATH10K_FW_FEATURE_BTCOEX_PARAM,
-		     ar->running_fw->fw_file.fw_features)) {
+		     ar->running_fw->fw_file.fw_features) &&
+	    ar->coex_support) {
 		ret = ath10k_wmi_pdev_set_param(ar, param, 0);
 		if (ret) {
 			ath10k_warn(ar,
diff --git a/drivers/net/wireless/ath/ath10k/wmi.c b/drivers/net/wireless/ath/ath10k/wmi.c
index 61885d4..e76e365 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.c
+++ b/drivers/net/wireless/ath/ath10k/wmi.c
@@ -8787,7 +8787,7 @@ static int ath10k_wmi_10_4_op_get_vdev_subtype(struct ath10k *ar,
 	cmd = (struct wmi_ext_resource_config_10_4_cmd *)skb->data;
 	cmd->host_platform_config = __cpu_to_le32(type);
 	cmd->fw_feature_bitmap = __cpu_to_le32(fw_feature_bitmap);
-	cmd->wlan_gpio_priority = __cpu_to_le32(-1);
+	cmd->wlan_gpio_priority = __cpu_to_le32(ar->coex_gpio_pin);
 	cmd->coex_version = __cpu_to_le32(WMI_NO_COEX_VERSION_SUPPORT);
 	cmd->coex_gpio_pin1 = __cpu_to_le32(-1);
 	cmd->coex_gpio_pin2 = __cpu_to_le32(-1);
-- 
1.9.1

[PATCHv2 2/2] ath10k: Add support to read btcoex related data from DT

[Tamizh Chelvam]

BTCOEX feature is not supported by all QCA4019 chipsets.
Since btcoex enabled by default in firmware, host needs to
enable COEX support depends on the hardware. Enabling it
by default in unsupported hardware will cause some
feature disabled in hardware.
This patch will read btcoex_support flag and
wlan priority gpio pin number from DT. Depends on the
btcoex_support flag value host will expose BTCOEX support
and wlan priority gpio pin number to target.

Testing:
	* Tested HW : QCA4019
	* Tested FW : 10.4-3.2.1.1-00017

Signed-off-by: Tamizh Chelvam <tamizhr@codeaurora.org>
---
v2:
  * Changed coex_support to bool type

 drivers/net/wireless/ath/ath10k/core.c  | 44 ++++++++++++++++++++++++++++++++-
 drivers/net/wireless/ath/ath10k/core.h  |  3 +++
 drivers/net/wireless/ath/ath10k/debug.c |  3 +++
 drivers/net/wireless/ath/ath10k/mac.c   |  3 ++-
 drivers/net/wireless/ath/ath10k/wmi.c   |  2 +-
 5 files changed, 52 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/core.c b/drivers/net/wireless/ath/ath10k/core.c
index 5ec16ce..5712e28 100644
--- a/drivers/net/wireless/ath/ath10k/core.c
+++ b/drivers/net/wireless/ath/ath10k/core.c
@@ -2119,6 +2119,40 @@ static int ath10k_download_cal_data(struct ath10k *ar)
 	return 0;
 }
 
+static void ath10k_core_fetch_btcoex_dt(struct ath10k *ar)
+{
+	struct device_node *node;
+	u8 coex_support = 0;
+	int ret;
+
+	node = ar->dev->of_node;
+	if (!node)
+		goto out;
+
+	ret = of_property_read_u8(node, "qcom,coexist-support", &coex_support);
+	if (ret) {
+		ar->coex_support = true;
+		goto out;
+	}
+
+	if (coex_support) {
+		ar->coex_support = true;
+	} else {
+		ar->coex_support = false;
+		ar->coex_gpio_pin = -1;
+		goto out;
+	}
+
+	ret = of_property_read_u32(node, "qcom,coexist-gpio-pin",
+				   &ar->coex_gpio_pin);
+	if (ret)
+		ar->coex_gpio_pin = -1;
+
+out:
+	ath10k_dbg(ar, ATH10K_DBG_BOOT, "boot coex_support %d coex_gpio_pin %d\n",
+		   ar->coex_support, ar->coex_gpio_pin);
+}
+
 static int ath10k_init_uart(struct ath10k *ar)
 {
 	int ret;
@@ -2696,14 +2730,22 @@ int ath10k_core_start(struct ath10k *ar, enum ath10k_firmware_mode mode,
 		if (test_bit(WMI_SERVICE_BSS_CHANNEL_INFO_64, ar->wmi.svc_map))
 			val |= WMI_10_4_BSS_CHANNEL_INFO_64;
 
+		ath10k_core_fetch_btcoex_dt(ar);
+
 		/* 10.4 firmware supports BT-Coex without reloading firmware
 		 * via pdev param. To support Bluetooth coexistence pdev param,
 		 * WMI_COEX_GPIO_SUPPORT of extended resource config should be
 		 * enabled always.
+		 *
+		 * We can still enable BTCOEX if firmware has the support
+		 * eventhough btceox_support value is
+		 * ATH10K_DT_BTCOEX_NOT_FOUND
 		 */
+
 		if (test_bit(WMI_SERVICE_COEX_GPIO, ar->wmi.svc_map) &&
 		    test_bit(ATH10K_FW_FEATURE_BTCOEX_PARAM,
-			     ar->running_fw->fw_file.fw_features))
+			     ar->running_fw->fw_file.fw_features) &&
+		    ar->coex_support)
 			val |= WMI_10_4_COEX_GPIO_SUPPORT;
 
 		if (test_bit(WMI_SERVICE_TDLS_EXPLICIT_MODE_ONLY,
diff --git a/drivers/net/wireless/ath/ath10k/core.h b/drivers/net/wireless/ath/ath10k/core.h
index 5101bf2..edf314e 100644
--- a/drivers/net/wireless/ath/ath10k/core.h
+++ b/drivers/net/wireless/ath/ath10k/core.h
@@ -1222,6 +1222,9 @@ struct ath10k {
 	struct ath10k_bus_params bus_param;
 	struct completion peer_delete_done;
 
+	bool coex_support;
+	int coex_gpio_pin;
+
 	/* must be last */
 	u8 drv_priv[0] __aligned(sizeof(void *));
 };
diff --git a/drivers/net/wireless/ath/ath10k/debug.c b/drivers/net/wireless/ath/ath10k/debug.c
index e000677..3894b77 100644
--- a/drivers/net/wireless/ath/ath10k/debug.c
+++ b/drivers/net/wireless/ath/ath10k/debug.c
@@ -1978,6 +1978,9 @@ static ssize_t ath10k_write_btcoex(struct file *file,
 	if (strtobool(buf, &val) != 0)
 		return -EINVAL;
 
+	if (!ar->coex_support)
+		return -EOPNOTSUPP;
+
 	mutex_lock(&ar->conf_mutex);
 
 	if (ar->state != ATH10K_STATE_ON &&
diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index 7fee35f..ac3ad5c 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -4982,7 +4982,8 @@ static int ath10k_start(struct ieee80211_hw *hw)
 	param = ar->wmi.pdev_param->enable_btcoex;
 	if (test_bit(WMI_SERVICE_COEX_GPIO, ar->wmi.svc_map) &&
 	    test_bit(ATH10K_FW_FEATURE_BTCOEX_PARAM,
-		     ar->running_fw->fw_file.fw_features)) {
+		     ar->running_fw->fw_file.fw_features) &&
+	    ar->coex_support) {
 		ret = ath10k_wmi_pdev_set_param(ar, param, 0);
 		if (ret) {
 			ath10k_warn(ar,
diff --git a/drivers/net/wireless/ath/ath10k/wmi.c b/drivers/net/wireless/ath/ath10k/wmi.c
index 61885d4..e76e365 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.c
+++ b/drivers/net/wireless/ath/ath10k/wmi.c
@@ -8787,7 +8787,7 @@ static int ath10k_wmi_10_4_op_get_vdev_subtype(struct ath10k *ar,
 	cmd = (struct wmi_ext_resource_config_10_4_cmd *)skb->data;
 	cmd->host_platform_config = __cpu_to_le32(type);
 	cmd->fw_feature_bitmap = __cpu_to_le32(fw_feature_bitmap);
-	cmd->wlan_gpio_priority = __cpu_to_le32(-1);
+	cmd->wlan_gpio_priority = __cpu_to_le32(ar->coex_gpio_pin);
 	cmd->coex_version = __cpu_to_le32(WMI_NO_COEX_VERSION_SUPPORT);
 	cmd->coex_gpio_pin1 = __cpu_to_le32(-1);
 	cmd->coex_gpio_pin2 = __cpu_to_le32(-1);
-- 
1.9.1

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Re: [PATCHv2 1/2] dt-bindings: ath10k: Add new dt entries to identify coex support

[Rob Herring]

On Tue, 28 Jan 2020 00:48:55 +0530, Tamizh Chelvam wrote:
> This adds new dt entries qcom,coexist-support and qcom,coexist-gpio-pin
> which will be used by ath10k driver to identify coex support
> of a hardware and notify wifi firmware the gpio pin number.
> This pin number information is needed for the hardware QCA4019.
> 
> Signed-off-by: Tamizh Chelvam <tamizhr@codeaurora.org>
> ---
>  Documentation/devicetree/bindings/net/wireless/qcom,ath10k.txt | 7 +++++++
>  1 file changed, 7 insertions(+)
> 

Reviewed-by: Rob Herring <robh@kernel.org>

Re: [PATCHv2 1/2] dt-bindings: ath10k: Add new dt entries to identify coex support

[Rob Herring]

On Tue, 28 Jan 2020 00:48:55 +0530, Tamizh Chelvam wrote:
> This adds new dt entries qcom,coexist-support and qcom,coexist-gpio-pin
> which will be used by ath10k driver to identify coex support
> of a hardware and notify wifi firmware the gpio pin number.
> This pin number information is needed for the hardware QCA4019.
> 
> Signed-off-by: Tamizh Chelvam <tamizhr@codeaurora.org>
> ---
>  Documentation/devicetree/bindings/net/wireless/qcom,ath10k.txt | 7 +++++++
>  1 file changed, 7 insertions(+)
> 

Reviewed-by: Rob Herring <robh@kernel.org>

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Re: [PATCHv2 1/2] dt-bindings: ath10k: Add new dt entries to identify coex support

[Kalle Valo]

Tamizh Chelvam <tamizhr@codeaurora.org> wrote:

> This adds new dt entries qcom,coexist-support and qcom,coexist-gpio-pin
> which will be used by ath10k driver to identify coex support
> of a hardware and notify wifi firmware the gpio pin number.
> This pin number information is needed for the hardware QCA4019.
> 
> Signed-off-by: Tamizh Chelvam <tamizhr@codeaurora.org>
> Reviewed-by: Rob Herring <robh@kernel.org>
> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

2 patches applied to ath-next branch of ath.git, thanks.

7354de9c6e2c dt-bindings: ath10k: Add new dt entries to identify coex support
9f83993e1a92 ath10k: Add support to read btcoex related data from DT

-- 
https://patchwork.kernel.org/patch/11353153/

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches

Re: [PATCHv2 1/2] dt-bindings: ath10k: Add new dt entries to identify coex support

[Kalle Valo]

Tamizh Chelvam <tamizhr@codeaurora.org> wrote:

> This adds new dt entries qcom,coexist-support and qcom,coexist-gpio-pin
> which will be used by ath10k driver to identify coex support
> of a hardware and notify wifi firmware the gpio pin number.
> This pin number information is needed for the hardware QCA4019.
> 
> Signed-off-by: Tamizh Chelvam <tamizhr@codeaurora.org>
> Reviewed-by: Rob Herring <robh@kernel.org>
> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

2 patches applied to ath-next branch of ath.git, thanks.

7354de9c6e2c dt-bindings: ath10k: Add new dt entries to identify coex support
9f83993e1a92 ath10k: Add support to read btcoex related data from DT

-- 
https://patchwork.kernel.org/patch/11353153/

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches

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