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Message-ID: <1524000642-23944-12-git-send-email-m-karicheri2@ti.com>
Date: Tue, 17 Apr 2018 17:30:40 -0400
From: Murali Karicheri <m-karicheri2@...com>
To: <robh+dt@...nel.org>, <mark.rutland@....com>,
<ssantosh@...nel.org>, <malat@...ian.org>, <w-kwok2@...com>,
<devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
<linux-arm-kernel@...ts.infradead.org>, <davem@...emloft.net>,
<netdev@...r.kernel.org>, <grygorii.strashko@...com>,
<nsekhar@...com>
Subject: [net-next PATCH v4 11/13] net: netcp: support probe deferral
The netcp driver shouldn't proceed until the knav qmss and dma
devices are ready. So return -EPROBE_DEFER if these devices are not
ready.
Signed-off-by: Murali Karicheri <m-karicheri2@...com>
---
drivers/net/ethernet/ti/netcp_core.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/net/ethernet/ti/netcp_core.c b/drivers/net/ethernet/ti/netcp_core.c
index 9c51b25..736f6f7 100644
--- a/drivers/net/ethernet/ti/netcp_core.c
+++ b/drivers/net/ethernet/ti/netcp_core.c
@@ -2158,6 +2158,10 @@ static int netcp_probe(struct platform_device *pdev)
struct netcp_module *module;
int ret;
+ if (!knav_dma_device_ready() ||
+ !knav_qmss_device_ready())
+ return -EPROBE_DEFER;
+
if (!node) {
dev_err(dev, "could not find device info\n");
return -ENODEV;
--
1.9.1
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