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X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org WiFi modules often require 32kHz clock to function. Add support to enable the clock to PCIe driver. Signed-off-by: Jacobe Zang --- .../net/wireless/broadcom/brcm80211/brcmfmac/pcie.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c index 06698a714b523..f241e1757d7e3 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c @@ -3,6 +3,7 @@ * Copyright (c) 2014 Broadcom Corporation */ +#include #include #include #include @@ -2411,6 +2412,7 @@ brcmf_pcie_probe(struct pci_dev *pdev, const struct pci_device_id *id) struct brcmf_pciedev *pcie_bus_dev; struct brcmf_core *core; struct brcmf_bus *bus; + struct clk *clk; if (!id) { id = pci_match_id(brcmf_pcie_devid_table, pdev); @@ -2422,6 +2424,14 @@ brcmf_pcie_probe(struct pci_dev *pdev, const struct pci_device_id *id) brcmf_dbg(PCIE, "Enter %x:%x\n", pdev->vendor, pdev->device); + clk = devm_clk_get_optional_enabled(&pdev->dev, "32k"); + if (IS_ERR(clk)) + return PTR_ERR(clk); + if (clk) { + dev_info(&pdev->dev, "enabling 32kHz clock\n"); + clk_set_rate(clk, 32768); + } + ret = -ENOMEM; devinfo = kzalloc(sizeof(*devinfo), GFP_KERNEL); if (devinfo == NULL)