[PATCH 4.9 219/271] net: qca_spi: Move reset_count to struct qcaspi

[Greg Kroah-Hartman]

From: Stefan Wahren <stefan.wahren@xxxxxxxxxxx>

[ Upstream commit bc19c32904e36548335b35fdce6ce734e20afc0a ]

The reset counter is specific for every QCA700x chip. So move this
into the private driver struct. Otherwise we get unpredictable reset
behavior in setups with multiple QCA700x chips.

Fixes: 291ab06ecf67 (net: qualcomm: new Ethernet over SPI driver for QCA7000)
Signed-off-by: Stefan Wahren <stefan.wahren@xxxxxxxxxxx>
Signed-off-by: Stefan Wahren <wahrenst@xxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 drivers/net/ethernet/qualcomm/qca_spi.c | 9 ++++-----
 drivers/net/ethernet/qualcomm/qca_spi.h | 1 +
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/qualcomm/qca_spi.c b/drivers/net/ethernet/qualcomm/qca_spi.c
index 21f546587e3d5..31583d6f044f4 100644
--- a/drivers/net/ethernet/qualcomm/qca_spi.c
+++ b/drivers/net/ethernet/qualcomm/qca_spi.c
@@ -438,7 +438,6 @@ qcaspi_qca7k_sync(struct qcaspi *qca, int event)
 	u16 signature = 0;
 	u16 spi_config;
 	u16 wrbuf_space = 0;
-	static u16 reset_count;
 
 	if (event == QCASPI_EVENT_CPUON) {
 		/* Read signature twice, if not valid
@@ -491,13 +490,13 @@ qcaspi_qca7k_sync(struct qcaspi *qca, int event)
 
 		qca->sync = QCASPI_SYNC_RESET;
 		qca->stats.trig_reset++;
-		reset_count = 0;
+		qca->reset_count = 0;
 		break;
 	case QCASPI_SYNC_RESET:
-		reset_count++;
+		qca->reset_count++;
 		netdev_dbg(qca->net_dev, "sync: waiting for CPU on, count %u.\n",
-			   reset_count);
-		if (reset_count >= QCASPI_RESET_TIMEOUT) {
+			   qca->reset_count);
+		if (qca->reset_count >= QCASPI_RESET_TIMEOUT) {
 			/* reset did not seem to take place, try again */
 			qca->sync = QCASPI_SYNC_UNKNOWN;
 			qca->stats.reset_timeout++;
diff --git a/drivers/net/ethernet/qualcomm/qca_spi.h b/drivers/net/ethernet/qualcomm/qca_spi.h
index 6e31a0e744a45..c48c314ca4dfa 100644
--- a/drivers/net/ethernet/qualcomm/qca_spi.h
+++ b/drivers/net/ethernet/qualcomm/qca_spi.h
@@ -97,6 +97,7 @@ struct qcaspi {
 
 	unsigned int intr_req;
 	unsigned int intr_svc;
+	u16 reset_count;
 
 #ifdef CONFIG_DEBUG_FS
 	struct dentry *device_root;
-- 
2.20.1