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[AUTOSEL,for,4.9,152/190] Bluetooth: hci_qca: Avoid setup failure on missing rampatch

Message ID 20180308045810.8041-152-alexander.levin@microsoft.com
State Superseded
Headers show
Series None | expand

Commit Message

Sasha Levin March 8, 2018, 4:59 a.m. UTC 
From: Loic Poulain <loic.poulain@linaro.org>


[ Upstream commit ba8f3597900291a93604643017fff66a14546015 ]

Assuming that the original code idea was to enable in-band sleeping
only if the setup_rome method returns succes and run in 'standard'
mode otherwise, we should not return setup_rome return value which
makes qca_setup fail if no rampatch/nvm file found.

This fixes BT issue on the dragonboard-820C p4 which includes the
following QCA controller:
hci0: Product:0x00000008
hci0: Patch  :0x00000111
hci0: ROM    :0x00000302
hci0: SOC    :0x00000044

Since there is no rampatch for this controller revision, just make
it work as is.

Signed-off-by: Loic Poulain <loic.poulain@linaro.org>

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>

---
 drivers/bluetooth/hci_qca.c | 3 +++
 1 file changed, 3 insertions(+)

-- 
2.14.1
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Patch

diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c
index 6c867fbc56a7..74b2f4a14643 100644
--- a/drivers/bluetooth/hci_qca.c
+++ b/drivers/bluetooth/hci_qca.c
@@ -936,6 +936,9 @@  static int qca_setup(struct hci_uart *hu)
 	if (!ret) {
 		set_bit(STATE_IN_BAND_SLEEP_ENABLED, &qca->flags);
 		qca_debugfs_init(hdev);
+	} else if (ret == -ENOENT) {
+		/* No patch/nvm-config found, run with original fw/config */
+		ret = 0;
 	}
 
 	/* Setup bdaddr */