From mboxrd@z Thu Jan 1 00:00:00 1970 From: Murali Karicheri Subject: [net-next PATCH 5/5] net: netcp: support probe deferral Date: Mon, 26 Mar 2018 16:15:12 -0400 Message-ID: <1522095312-23249-6-git-send-email-m-karicheri2@ti.com> References: <1522095312-23249-1-git-send-email-m-karicheri2@ti.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: In-Reply-To: <1522095312-23249-1-git-send-email-m-karicheri2@ti.com> Sender: linux-kernel-owner@vger.kernel.org To: robh+dt@kernel.org, mark.rutland@arm.com, ssantosh@kernel.org, malat@debian.org, w-kwok2@ti.com, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, davem@davemloft.net, netdev@vger.kernel.org List-Id: devicetree@vger.kernel.org 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 --- 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