From mboxrd@z Thu Jan 1 00:00:00 1970 From: Chunfeng Yun Subject: [v2 PATCH] PCI: mediatek: get optional clock by devm_clk_get_optional() Date: Sun, 31 Mar 2019 20:41:03 +0800 Message-ID: <1554036063-1381-1-git-send-email-chunfeng.yun@mediatek.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: Sender: linux-kernel-owner@vger.kernel.org To: Ryder Lee , Honghui Zhang , Lorenzo Pieralisi Cc: Bjorn Helgaas , Matthias Brugger , linux-pci@vger.kernel.org, linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Chunfeng Yun List-Id: linux-mediatek@lists.infradead.org Use devm_clk_get_optional() to get optional clock Cc: Ryder Lee Cc: Honghui Zhang Signed-off-by: Chunfeng Yun --- v2: 1. cc Ryder and Honghui 2. fix up omitted 'if (IS_ERR())' --- drivers/pci/controller/pcie-mediatek.c | 50 ++++++++------------------ 1 file changed, 15 insertions(+), 35 deletions(-) diff --git a/drivers/pci/controller/pcie-mediatek.c b/drivers/pci/controller/pcie-mediatek.c index 0b6c72804e03..adb6cb15daa2 100644 --- a/drivers/pci/controller/pcie-mediatek.c +++ b/drivers/pci/controller/pcie-mediatek.c @@ -915,49 +915,29 @@ static int mtk_pcie_parse_port(struct mtk_pcie *pcie, /* sys_ck might be divided into the following parts in some chips */ snprintf(name, sizeof(name), "ahb_ck%d", slot); - port->ahb_ck = devm_clk_get(dev, name); - if (IS_ERR(port->ahb_ck)) { - if (PTR_ERR(port->ahb_ck) == -EPROBE_DEFER) - return -EPROBE_DEFER; - - port->ahb_ck = NULL; - } + port->ahb_ck = devm_clk_get_optional(dev, name); + if (IS_ERR(port->ahb_ck)) + return PTR_ERR(port->ahb_ck); snprintf(name, sizeof(name), "axi_ck%d", slot); - port->axi_ck = devm_clk_get(dev, name); - if (IS_ERR(port->axi_ck)) { - if (PTR_ERR(port->axi_ck) == -EPROBE_DEFER) - return -EPROBE_DEFER; - - port->axi_ck = NULL; - } + port->axi_ck = devm_clk_get_optional(dev, name); + if (IS_ERR(port->axi_ck)) + return PTR_ERR(port->axi_ck); snprintf(name, sizeof(name), "aux_ck%d", slot); - port->aux_ck = devm_clk_get(dev, name); - if (IS_ERR(port->aux_ck)) { - if (PTR_ERR(port->aux_ck) == -EPROBE_DEFER) - return -EPROBE_DEFER; - - port->aux_ck = NULL; - } + port->aux_ck = devm_clk_get_optional(dev, name); + if (IS_ERR(port->aux_ck)) + return PTR_ERR(port->aux_ck); snprintf(name, sizeof(name), "obff_ck%d", slot); - port->obff_ck = devm_clk_get(dev, name); - if (IS_ERR(port->obff_ck)) { - if (PTR_ERR(port->obff_ck) == -EPROBE_DEFER) - return -EPROBE_DEFER; - - port->obff_ck = NULL; - } + port->obff_ck = devm_clk_get_optional(dev, name); + if (IS_ERR(port->obff_ck)) + return PTR_ERR(port->obff_ck); snprintf(name, sizeof(name), "pipe_ck%d", slot); - port->pipe_ck = devm_clk_get(dev, name); - if (IS_ERR(port->pipe_ck)) { - if (PTR_ERR(port->pipe_ck) == -EPROBE_DEFER) - return -EPROBE_DEFER; - - port->pipe_ck = NULL; - } + port->pipe_ck = devm_clk_get_optional(dev, name); + if (IS_ERR(port->pipe_ck)) + return PTR_ERR(port->pipe_ck); snprintf(name, sizeof(name), "pcie-rst%d", slot); port->reset = devm_reset_control_get_optional_exclusive(dev, name); -- 2.20.1