linux-kernel - [PATCH 5.12 05/11] mt76: mt7921: introduce mt7921_run

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Date:   Fri,  9 Jul 2021 15:21:42 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Sean Wang <sean.wang@...iatek.com>,
        Lorenzo Bianconi <lorenzo@...nel.org>,
        Felix Fietkau <nbd@....name>, Deren Wu <Deren.Wu@...iatek.com>
Subject: [PATCH 5.12 05/11] mt76: mt7921: introduce mt7921_run_firmware utility routine.

From: Lorenzo Bianconi <lorenzo@...nel.org>

commit d32464e68ffc9cbec4960cd06f05bf48b3b3703f upstream.

This is a preliminary patch to introduce chip reset for mt7921 devices.

Co-developed-by: Sean Wang <sean.wang@...iatek.com>
Signed-off-by: Sean Wang <sean.wang@...iatek.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@...nel.org>
Signed-off-by: Felix Fietkau <nbd@....name>
Cc: Deren Wu <Deren.Wu@...iatek.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/net/wireless/mediatek/mt76/mt7921/mcu.c    |   32 ++++++++++++---------
 drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h |    1 
 2 files changed, 20 insertions(+), 13 deletions(-)

--- a/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/mcu.c
@@ -927,6 +927,24 @@ int mt7921_mcu_fw_log_2_host(struct mt79
 				 sizeof(data), false);
 }
 
+int mt7921_run_firmware(struct mt7921_dev *dev)
+{
+	int err;
+
+	err = mt7921_driver_own(dev);
+	if (err)
+		return err;
+
+	err = mt7921_load_firmware(dev);
+	if (err)
+		return err;
+
+	set_bit(MT76_STATE_MCU_RUNNING, &dev->mphy.state);
+	mt7921_mcu_fw_log_2_host(dev, 1);
+
+	return 0;
+}
+
 int mt7921_mcu_init(struct mt7921_dev *dev)
 {
 	static const struct mt76_mcu_ops mt7921_mcu_ops = {
@@ -935,22 +953,10 @@ int mt7921_mcu_init(struct mt7921_dev *d
 		.mcu_parse_response = mt7921_mcu_parse_response,
 		.mcu_restart = mt7921_mcu_restart,
 	};
-	int ret;
 
 	dev->mt76.mcu_ops = &mt7921_mcu_ops;
 
-	ret = mt7921_driver_own(dev);
-	if (ret)
-		return ret;
-
-	ret = mt7921_load_firmware(dev);
-	if (ret)
-		return ret;
-
-	set_bit(MT76_STATE_MCU_RUNNING, &dev->mphy.state);
-	mt7921_mcu_fw_log_2_host(dev, 1);
-
-	return 0;
+	return mt7921_run_firmware(dev);
 }
 
 void mt7921_mcu_exit(struct mt7921_dev *dev)
--- a/drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h
+++ b/drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h
@@ -220,6 +220,7 @@ void mt7921_eeprom_init_sku(struct mt792
 int mt7921_dma_init(struct mt7921_dev *dev);
 void mt7921_dma_prefetch(struct mt7921_dev *dev);
 void mt7921_dma_cleanup(struct mt7921_dev *dev);
+int mt7921_run_firmware(struct mt7921_dev *dev);
 int mt7921_mcu_init(struct mt7921_dev *dev);
 int mt7921_mcu_add_bss_info(struct mt7921_phy *phy,
 			    struct ieee80211_vif *vif, int enable);