linux-kernel - [PATCH 04/12] platform_data: Add linux/platform

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Date:   Fri,  8 Oct 2021 18:21:13 +0200
From:   Hans de Goede <hdegoede@...hat.com>
To:     "Rafael J . Wysocki" <rjw@...ysocki.net>,
        Mark Gross <markgross@...nel.org>,
        Andy Shevchenko <andy@...radead.org>,
        Daniel Scally <djrscally@...il.com>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>
Cc:     Hans de Goede <hdegoede@...hat.com>, Len Brown <lenb@...nel.org>,
        linux-acpi@...r.kernel.org, platform-driver-x86@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Sakari Ailus <sakari.ailus@...ux.intel.com>,
        Kate Hsuan <hpa@...hat.com>, linux-media@...r.kernel.org,
        linux-clk@...r.kernel.org
Subject: [PATCH 04/12] platform_data: Add linux/platform_data/tps68470.h file

The clk and regulator frameworks expect clk/regulator consumer-devices
to have info about the consumed clks/regulators described in the device's
fw_node.

To work around cases where this info is not present in the firmware tables,
which is often the case on x86/ACPI devices, both frameworks allow the
provider-driver to attach info about consumers to the provider-device
during probe/registration of the provider device.

The TI TPS68470 PMIC is used x86/ACPI devices with the consumer-info
missing from the ACPI tables. Thus the tps68470-clk and tps68470-regulator
drivers must provide the consumer-info at probe time.

Define tps68470_clk_platform_data and tps68470_regulator_platform_data
structs to allow the x86 platform code to pass the necessary consumer info
to these drivers.

Signed-off-by: Hans de Goede <hdegoede@...hat.com>
---
 include/linux/platform_data/tps68470.h | 35 ++++++++++++++++++++++++++
 1 file changed, 35 insertions(+)
 create mode 100644 include/linux/platform_data/tps68470.h

diff --git a/include/linux/platform_data/tps68470.h b/include/linux/platform_data/tps68470.h
new file mode 100644
index 000000000000..126d082c3f2e
--- /dev/null
+++ b/include/linux/platform_data/tps68470.h
@@ -0,0 +1,35 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * TI TPS68470 PMIC platform data definition.
+ *
+ * Copyright (c) 2021 Red Hat Inc.
+ *
+ * Red Hat authors:
+ * Hans de Goede <hdegoede@...hat.com>
+ */
+#ifndef __PDATA_TPS68470_H
+#define __PDATA_TPS68470_H
+
+enum tps68470_regulators {
+	TPS68470_CORE,
+	TPS68470_ANA,
+	TPS68470_VCM,
+	TPS68470_VIO,
+	TPS68470_VSIO,
+	TPS68470_AUX1,
+	TPS68470_AUX2,
+	TPS68470_NUM_REGULATORS
+};
+
+struct regulator_init_data;
+
+struct tps68470_regulator_platform_data {
+	const struct regulator_init_data *reg_init_data[TPS68470_NUM_REGULATORS];
+};
+
+struct tps68470_clk_platform_data {
+	const char *consumer_dev_name;
+	const char *consumer_con_id;
+};
+
+#endif
-- 
2.31.1