clk: x86: Rename clk-lpt to more specific clk-lpss-atom

The LPT stands for Lynxpoint PCH. However the driver is used on a few
Intel Atom SoCs. Rename it to reflect this in a way how another clock
driver, i.e. clk-pmc-atom, is called.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20210722193450.35321-1-andriy.shevchenko@linux.intel.com
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

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 000000000000..aa9d0bb98f8b
--- /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);
+}