From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 From: Ondrej Jirman Date: Wed, 28 Feb 2024 21:09:51 +0100 Subject: net: wireless: brcmfmac: Add optional 32k clock enable support WiFi modules often require 32kHz clock to function. Add support to enable the clock to pcie driver. Signed-off-by: Ondrej Jirman --- drivers/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 89b9f25f56d4..b2e0b5f0512e 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 @@ -2408,6 +2409,7 @@ 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); @@ -2419,6 +2421,14 @@ 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) -- Armbian