From: Ryder Lee <ryder.lee@mediatek.com>
To: Chunfeng Yun <chunfeng.yun@mediatek.com>
Cc: Honghui Zhang <honghui.zhang@mediatek.com>,
Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
Bjorn Helgaas <bhelgaas@google.com>,
"Matthias Brugger" <matthias.bgg@gmail.com>,
<linux-pci@vger.kernel.org>, <linux-mediatek@lists.infradead.org>,
<linux-kernel@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>
Subject: Re: [v2 PATCH] PCI: mediatek: get optional clock by devm_clk_get_optional()
Date: Tue, 2 Apr 2019 14:54:58 +0800 [thread overview]
Message-ID: <1554188098.2219.0.camel@mtkswgap22> (raw)
In-Reply-To: <1554036063-1381-1-git-send-email-chunfeng.yun@mediatek.com>
On Sun, 2019-03-31 at 20:41 +0800, Chunfeng Yun wrote:
> Use devm_clk_get_optional() to get optional clock
>
> Cc: Ryder Lee <ryder.lee@mediatek.com>
> Cc: Honghui Zhang <honghui.zhang@mediatek.com>
> Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Acked-by: Ryder Lee <ryder.lee@mediatek.com>
> ---
> 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);
prev parent reply other threads:[~2019-04-02 6:55 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-31 12:41 [v2 PATCH] PCI: mediatek: get optional clock by devm_clk_get_optional() Chunfeng Yun
2019-04-02 6:54 ` Ryder Lee [this message]
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