From mboxrd@z Thu Jan 1 00:00:00 1970 From: Joachim Eastwood Subject: [net-next PATCH 5/7] stmmac: dwmac-sti: move clk_prepare_enable out of init and add error handling Date: Sun, 30 Oct 2016 21:05:05 +0100 Message-ID: <20161030200507.851-6-manabian@gmail.com> References: <20161030200507.851-1-manabian@gmail.com> Cc: Joachim Eastwood , peppe.cavallaro@st.com, alexandre.torgue@st.com, netdev@vger.kernel.org To: davem@davemloft.net Return-path: Received: from mail-lf0-f65.google.com ([209.85.215.65]:36445 "EHLO mail-lf0-f65.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757326AbcJ3UGi (ORCPT ); Sun, 30 Oct 2016 16:06:38 -0400 Received: by mail-lf0-f65.google.com with SMTP id o20so433780lfg.3 for ; Sun, 30 Oct 2016 13:06:38 -0700 (PDT) In-Reply-To: <20161030200507.851-1-manabian@gmail.com> Sender: netdev-owner@vger.kernel.org List-ID: Add clock error handling to probe and in the process move clock enabling out of sti_dwmac_init() to make this easier. Signed-off-by: Joachim Eastwood --- drivers/net/ethernet/stmicro/stmmac/dwmac-sti.c | 19 +++++++++++++++---- 1 file changed, 15 insertions(+), 4 deletions(-) diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-sti.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-sti.c index e814b68..aa75a27 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-sti.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-sti.c @@ -237,8 +237,6 @@ static int sti_dwmac_init(struct platform_device *pdev, void *priv) u32 reg = dwmac->ctrl_reg; u32 val; - clk_prepare_enable(dwmac->clk); - if (dwmac->gmac_en) regmap_update_bits(regmap, reg, EN_MASK, EN); @@ -348,11 +346,23 @@ static int sti_dwmac_probe(struct platform_device *pdev) plat_dat->bsp_priv = dwmac; plat_dat->fix_mac_speed = data->fix_retime_src; - ret = sti_dwmac_init(pdev, plat_dat->bsp_priv); + ret = clk_prepare_enable(dwmac->clk); if (ret) return ret; - return stmmac_dvr_probe(&pdev->dev, plat_dat, &stmmac_res); + ret = sti_dwmac_init(pdev, plat_dat->bsp_priv); + if (ret) + goto disable_clk; + + ret = stmmac_dvr_probe(&pdev->dev, plat_dat, &stmmac_res); + if (ret) + goto disable_clk; + + return 0; + +disable_clk: + clk_disable_unprepare(dwmac->clk); + return ret; } static int sti_dwmac_remove(struct platform_device *pdev) @@ -381,6 +391,7 @@ static int sti_dwmac_resume(struct device *dev) struct sti_dwmac *dwmac = get_stmmac_bsp_priv(dev); struct platform_device *pdev = to_platform_device(dev); + clk_prepare_enable(dwmac->clk); sti_dwmac_init(pdev, dwmac); return stmmac_resume(dev); -- 2.10.1