52 lines
1.6 KiB
Diff
52 lines
1.6 KiB
Diff
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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Ondrej Jirman <unknown-email@domain.tld>
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Date: Wed, 28 Feb 2024 21:09:51 +0100
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Subject: net: wireless: brcmfmac: Add optional 32k clock enable support
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WiFi modules often require 32kHz clock to function. Add support to
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enable the clock to pcie driver.
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Signed-off-by: Ondrej Jirman <megi@xff.cz>
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---
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drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c | 10 ++++++++++
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1 file changed, 10 insertions(+)
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diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c
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index 111111111111..222222222222 100644
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--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c
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+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c
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@@ -3,6 +3,7 @@
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* Copyright (c) 2014 Broadcom Corporation
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*/
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+#include <linux/clk.h>
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/firmware.h>
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@@ -2413,6 +2414,7 @@ brcmf_pcie_probe(struct pci_dev *pdev, const struct pci_device_id *id)
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struct brcmf_pciedev *pcie_bus_dev;
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struct brcmf_core *core;
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struct brcmf_bus *bus;
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+ struct clk *clk;
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if (!id) {
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id = pci_match_id(brcmf_pcie_devid_table, pdev);
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@@ -2424,6 +2426,14 @@ brcmf_pcie_probe(struct pci_dev *pdev, const struct pci_device_id *id)
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brcmf_dbg(PCIE, "Enter %x:%x\n", pdev->vendor, pdev->device);
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+ clk = devm_clk_get_optional_enabled(&pdev->dev, "32k");
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+ if (IS_ERR(clk))
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+ return PTR_ERR(clk);
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+ if (clk) {
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+ dev_info(&pdev->dev, "enabling 32kHz clock\n");
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+ clk_set_rate(clk, 32768);
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+ }
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+
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ret = -ENOMEM;
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devinfo = kzalloc(sizeof(*devinfo), GFP_KERNEL);
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if (devinfo == NULL)
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--
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Armbian
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