From: Sean Wang <sean.wang-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org> To: <john-Pj+rj9U5foFAfugRpC6u6w@public.gmane.org>, <davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org> Cc: netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, nbd-p3rKhJxN3npAfugRpC6u6w@public.gmane.org, Sean Wang <sean.wang-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org>, linux-mediatek-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, keyhaede-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org Subject: [RESEND PATCH net 02/10] net: ethernet: mediatek: fix incorrect return value of devm_clk_get with EPROBE_DEFER Date: Thu, 25 Aug 2016 18:44:53 +0800 [thread overview] Message-ID: <1472121901-15629-3-git-send-email-sean.wang@mediatek.com> (raw) In-Reply-To: <1472121901-15629-1-git-send-email-sean.wang-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org> If the return value of devm_clk_get is EPROBE_DEFER, we should defer probing the driver. The change is verified and works based on 4.8-rc1 staying with the latest clk-next code for MT7623. Signed-off-by: Sean Wang <sean.wang-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org> --- drivers/net/ethernet/mediatek/mtk_eth_soc.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.c b/drivers/net/ethernet/mediatek/mtk_eth_soc.c index 6e4a6ca..02b048f 100644 --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c @@ -1851,8 +1851,15 @@ static int mtk_probe(struct platform_device *pdev) eth->clk_gp1 = devm_clk_get(&pdev->dev, "gp1"); eth->clk_gp2 = devm_clk_get(&pdev->dev, "gp2"); if (IS_ERR(eth->clk_esw) || IS_ERR(eth->clk_gp1) || - IS_ERR(eth->clk_gp2) || IS_ERR(eth->clk_ethif)) - return -ENODEV; + IS_ERR(eth->clk_gp2) || IS_ERR(eth->clk_ethif)) { + if (PTR_ERR(eth->clk_esw) == -EPROBE_DEFER || + PTR_ERR(eth->clk_gp1) == -EPROBE_DEFER || + PTR_ERR(eth->clk_gp1) == -EPROBE_DEFER || + PTR_ERR(eth->clk_gp2) == -EPROBE_DEFER) + return -EPROBE_DEFER; + else + return -ENODEV; + } clk_prepare_enable(eth->clk_ethif); clk_prepare_enable(eth->clk_esw); -- 1.9.1
WARNING: multiple messages have this Message-ID (diff)
From: Sean Wang <sean.wang-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org> To: john-Pj+rj9U5foFAfugRpC6u6w@public.gmane.org, davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org Cc: netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, nbd-p3rKhJxN3npAfugRpC6u6w@public.gmane.org, Sean Wang <sean.wang-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org>, linux-mediatek-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, keyhaede-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org Subject: [RESEND PATCH net 02/10] net: ethernet: mediatek: fix incorrect return value of devm_clk_get with EPROBE_DEFER Date: Thu, 25 Aug 2016 18:44:53 +0800 [thread overview] Message-ID: <1472121901-15629-3-git-send-email-sean.wang@mediatek.com> (raw) In-Reply-To: <1472121901-15629-1-git-send-email-sean.wang-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org> If the return value of devm_clk_get is EPROBE_DEFER, we should defer probing the driver. The change is verified and works based on 4.8-rc1 staying with the latest clk-next code for MT7623. Signed-off-by: Sean Wang <sean.wang-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org> --- drivers/net/ethernet/mediatek/mtk_eth_soc.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.c b/drivers/net/ethernet/mediatek/mtk_eth_soc.c index 6e4a6ca..02b048f 100644 --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c @@ -1851,8 +1851,15 @@ static int mtk_probe(struct platform_device *pdev) eth->clk_gp1 = devm_clk_get(&pdev->dev, "gp1"); eth->clk_gp2 = devm_clk_get(&pdev->dev, "gp2"); if (IS_ERR(eth->clk_esw) || IS_ERR(eth->clk_gp1) || - IS_ERR(eth->clk_gp2) || IS_ERR(eth->clk_ethif)) - return -ENODEV; + IS_ERR(eth->clk_gp2) || IS_ERR(eth->clk_ethif)) { + if (PTR_ERR(eth->clk_esw) == -EPROBE_DEFER || + PTR_ERR(eth->clk_gp1) == -EPROBE_DEFER || + PTR_ERR(eth->clk_gp1) == -EPROBE_DEFER || + PTR_ERR(eth->clk_gp2) == -EPROBE_DEFER) + return -EPROBE_DEFER; + else + return -ENODEV; + } clk_prepare_enable(eth->clk_ethif); clk_prepare_enable(eth->clk_esw); -- 1.9.1
next prev parent reply other threads:[~2016-08-25 10:44 UTC|newest] Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top 2016-08-25 10:44 [RESEND PATCH net 00/10] net: ethernet: mediatek: a couple of fixes Sean Wang 2016-08-25 10:44 ` Sean Wang 2016-08-25 10:44 ` [RESEND PATCH net 01/10] net: ethernet: mediatek: fix fails from TX housekeeping due to incorrect port setup Sean Wang 2016-08-25 10:44 ` Sean Wang 2016-08-25 12:19 ` John Crispin [not found] ` <1472121901-15629-1-git-send-email-sean.wang-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org> 2016-08-25 10:44 ` Sean Wang [this message] 2016-08-25 10:44 ` [RESEND PATCH net 02/10] net: ethernet: mediatek: fix incorrect return value of devm_clk_get with EPROBE_DEFER Sean Wang 2016-08-25 13:49 ` John Crispin [not found] ` <e1e9ca7a-c33b-3a9e-fd47-48f80bb10a32-Pj+rj9U5foFAfugRpC6u6w@public.gmane.org> 2016-08-26 5:22 ` [RESEND PATCH net 02/10] net: ethernet: mediatek: fix incorrect Sean Wang 2016-08-26 5:22 ` Sean Wang 2016-08-25 10:44 ` [RESEND PATCH net 03/10] net: ethernet: mediatek: fix API usage with skb_free_frag Sean Wang 2016-08-25 10:44 ` Sean Wang 2016-08-25 12:20 ` John Crispin 2016-08-25 10:44 ` [RESEND PATCH net 04/10] net: ethernet: mediatek: remove redundant free_irq for devm_request_irq allocated irq Sean Wang 2016-08-25 10:44 ` Sean Wang 2016-08-25 12:20 ` John Crispin 2016-08-25 10:44 ` [RESEND PATCH net 05/10] net: ethernet: mediatek: fix logic unbalance between probe and remove Sean Wang 2016-08-25 10:44 ` Sean Wang 2016-08-25 12:22 ` John Crispin 2016-08-25 10:44 ` [RESEND PATCH net 06/10] net: ethernet: mediatek: fix the loss of pin-mux setting for GMAC2 Sean Wang 2016-08-25 10:44 ` Sean Wang 2016-08-25 13:30 ` Andrew Lunn [not found] ` <20160825133034.GA25046-g2DYL2Zd6BY@public.gmane.org> 2016-08-26 3:33 ` [RESEND PATCH net 06/10] net: ethernet: mediatek: fix the loss Sean Wang 2016-08-26 3:33 ` Sean Wang 2016-08-26 14:17 ` Andrew Lunn 2016-08-29 4:27 ` Sean Wang 2016-08-29 4:27 ` Sean Wang 2016-08-25 10:44 ` [RESEND PATCH net 07/10] net: ethernet: mediatek: fix issue of driver removal with interface is up Sean Wang 2016-08-25 10:44 ` Sean Wang [not found] ` <1472121901-15629-8-git-send-email-sean.wang-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org> 2016-08-25 13:35 ` John Crispin [not found] ` <2203871f-d73d-3a39-928d-39862ba5e367-Pj+rj9U5foFAfugRpC6u6w@public.gmane.org> 2016-08-26 5:50 ` Sean Wang 2016-08-26 5:50 ` Sean Wang 2016-08-25 10:44 ` [RESEND PATCH net 08/10] net: ethernet: mediatek: fix the missing of_node_put() after node is used done inside mtk_mdio_init Sean Wang 2016-08-25 10:44 ` Sean Wang [not found] ` <1472121901-15629-9-git-send-email-sean.wang-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org> 2016-08-25 13:36 ` John Crispin 2016-08-25 10:45 ` [RESEND PATCH net 09/10] net: ethernet: mediatek: use devm_mdiobus_alloc instead of mdiobus_alloc " Sean Wang 2016-08-25 10:45 ` Sean Wang [not found] ` <1472121901-15629-10-git-send-email-sean.wang-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org> 2016-08-25 13:39 ` John Crispin 2016-08-26 6:33 ` sean.wang 2016-08-26 6:33 ` sean.wang 2016-08-25 10:45 ` [RESEND PATCH net 10/10] net: ethernet: mediatek: fix error handling " Sean Wang 2016-08-25 10:45 ` Sean Wang [not found] ` <1472121901-15629-11-git-send-email-sean.wang-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org> 2016-08-25 13:39 ` John Crispin
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