From: Yoshihiro Shimoda Date: Tue, 24 Jan 2023 00:02:10 +0000 (+0900) Subject: net: ravb: Fix lack of register setting after system resumed for Gen3 X-Git-Tag: v6.1.9~28 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=4fd88b8d6e040a9b00ae84c6e0979c56a1f6586e;p=platform%2Fkernel%2Flinux-starfive.git net: ravb: Fix lack of register setting after system resumed for Gen3 [ Upstream commit c2b6cdee1d13ffbb24baca3c9b8a572d6b541e4e ] After system entered Suspend to RAM, registers setting of this hardware is reset because the SoC will be turned off. On R-Car Gen3 (info->ccc_gac), ravb_ptp_init() is called in ravb_probe() only. So, after system resumed, it lacks of the initial settings for ptp. So, add ravb_ptp_{init,stop}() into ravb_{resume,suspend}(). Fixes: f5d7837f96e5 ("ravb: ptp: Add CONFIG mode support") Signed-off-by: Yoshihiro Shimoda Reviewed-by: Sergey Shtylyov Signed-off-by: David S. Miller Signed-off-by: Sasha Levin --- diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c index b4e0fc7f65bd..3f61100c02f4 100644 --- a/drivers/net/ethernet/renesas/ravb_main.c +++ b/drivers/net/ethernet/renesas/ravb_main.c @@ -2973,6 +2973,9 @@ static int __maybe_unused ravb_suspend(struct device *dev) else ret = ravb_close(ndev); + if (priv->info->ccc_gac) + ravb_ptp_stop(ndev); + return ret; } @@ -3011,6 +3014,9 @@ static int __maybe_unused ravb_resume(struct device *dev) /* Restore descriptor base address table */ ravb_write(ndev, priv->desc_bat_dma, DBAT); + if (priv->info->ccc_gac) + ravb_ptp_init(ndev, priv->pdev); + if (netif_running(ndev)) { if (priv->wol_enabled) { ret = ravb_wol_restore(ndev);