netdev - [PATCH net-next 27/36] can: mcp251xfd: mcp251xfd_register(): prepare to activate PLL after softreset

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Wed, 23 Feb 2022 23:43:23 +0100
From:   Marc Kleine-Budde <mkl@...gutronix.de>
To:     netdev@...r.kernel.org
Cc:     davem@...emloft.net, kuba@...nel.org, linux-can@...r.kernel.org,
        kernel@...gutronix.de, Marc Kleine-Budde <mkl@...gutronix.de>
Subject: [PATCH net-next 27/36] can: mcp251xfd: mcp251xfd_register(): prepare to activate PLL after softreset

If the PLL is needed it must be switched on after chip reset. This
patch adds the required call to mcp251xfd_register().

Link: https://lore.kernel.org/all/20220207131047.282110-15-mkl@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@...gutronix.de>
---
 drivers/net/can/spi/mcp251xfd/mcp251xfd-core.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/net/can/spi/mcp251xfd/mcp251xfd-core.c b/drivers/net/can/spi/mcp251xfd/mcp251xfd-core.c
index 937424e5ac2b..1086c8974f89 100644
--- a/drivers/net/can/spi/mcp251xfd/mcp251xfd-core.c
+++ b/drivers/net/can/spi/mcp251xfd/mcp251xfd-core.c
@@ -1792,6 +1792,12 @@ static int mcp251xfd_register(struct mcp251xfd_priv *priv)
 	if (err)
 		goto out_chip_sleep;
 
+	err = mcp251xfd_chip_clock_init(priv);
+	if (err == -ENODEV)
+		goto out_runtime_disable;
+	if (err)
+		goto out_chip_sleep;
+
 	err = mcp251xfd_register_chip_detect(priv);
 	if (err)
 		goto out_chip_sleep;
-- 
2.34.1