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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
commit2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch)
tree848558de17fb3008cdf4d861b01ac7781903ce39 /drivers/clk/x86/clk-lpss-atom.c
parentInitial commit. (diff)
downloadlinux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz
linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip
Adding upstream version 6.1.76.upstream/6.1.76upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r--drivers/clk/x86/clk-lpss-atom.c47
1 files changed, 47 insertions, 0 deletions
diff --git a/drivers/clk/x86/clk-lpss-atom.c b/drivers/clk/x86/clk-lpss-atom.c
new file mode 100644
index 000000000..aa9d0bb98
--- /dev/null
+++ b/drivers/clk/x86/clk-lpss-atom.c
@@ -0,0 +1,47 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Intel Low Power Subsystem clocks.
+ *
+ * Copyright (C) 2013, Intel Corporation
+ * Authors: Mika Westerberg <mika.westerberg@linux.intel.com>
+ * Heikki Krogerus <heikki.krogerus@linux.intel.com>
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/err.h>
+#include <linux/module.h>
+#include <linux/platform_data/x86/clk-lpss.h>
+#include <linux/platform_device.h>
+
+static int lpss_atom_clk_probe(struct platform_device *pdev)
+{
+ struct lpss_clk_data *drvdata;
+ struct clk *clk;
+
+ drvdata = devm_kzalloc(&pdev->dev, sizeof(*drvdata), GFP_KERNEL);
+ if (!drvdata)
+ return -ENOMEM;
+
+ /* LPSS free running clock */
+ drvdata->name = "lpss_clk";
+ clk = clk_register_fixed_rate(&pdev->dev, drvdata->name, NULL,
+ 0, 100000000);
+ if (IS_ERR(clk))
+ return PTR_ERR(clk);
+
+ drvdata->clk = clk;
+ platform_set_drvdata(pdev, drvdata);
+ return 0;
+}
+
+static struct platform_driver lpss_atom_clk_driver = {
+ .driver = {
+ .name = "clk-lpss-atom",
+ },
+ .probe = lpss_atom_clk_probe,
+};
+
+int __init lpss_atom_clk_init(void)
+{
+ return platform_driver_register(&lpss_atom_clk_driver);
+}