linux-kernel - [PATCH 01/19] serdev: Add id_table to serdev_device

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Message-Id: <20180529131014.18641-2-ricardo.ribalda@gmail.com>
Date:   Tue, 29 May 2018 15:09:56 +0200
From:   Ricardo Ribalda Delgado <ricardo.ribalda@...il.com>
To:     linux-kernel@...r.kernel.org, linux-serial@...r.kernel.org
Cc:     Ricardo Ribalda Delgado <ricardo.ribalda@...il.com>,
        Rob Herring <robh@...nel.org>, Johan Hovold <johan@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: [PATCH 01/19] serdev: Add id_table to serdev_device_driver

Currently, serdev device driver can only be used with devices that are
nodes of a device tree, or are part of the ACPI table.

Id_table will be used for devices that are created at runtime or that
are not part of the device tree nor the ACPI table.

Cc: Rob Herring <robh@...nel.org>
Cc: Johan Hovold <johan@...nel.org>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@...il.com>
---
 include/linux/mod_devicetable.h | 10 ++++++++++
 include/linux/serdev.h          |  2 ++
 2 files changed, 12 insertions(+)

diff --git a/include/linux/mod_devicetable.h b/include/linux/mod_devicetable.h
index 7d361be2e24f..1877a4e43f1b 100644
--- a/include/linux/mod_devicetable.h
+++ b/include/linux/mod_devicetable.h
@@ -448,6 +448,16 @@ struct pci_epf_device_id {
 	kernel_ulong_t driver_data;
 };
 
+/* serdev */
+
+#define SERDEV_NAME_SIZE	32
+#define SERDEV_MODULE_PREFIX	"serdev:"
+
+struct serdev_device_id {
+	char name[SERDEV_NAME_SIZE];
+	kernel_ulong_t driver_data;	/* Data private to the driver */
+};
+
 /* spi */
 
 #define SPI_NAME_SIZE	32
diff --git a/include/linux/serdev.h b/include/linux/serdev.h
index f153b2c7f0cd..62f1b085a794 100644
--- a/include/linux/serdev.h
+++ b/include/linux/serdev.h
@@ -15,6 +15,7 @@
 
 #include <linux/types.h>
 #include <linux/device.h>
+#include <linux/mod_devicetable.h>
 #include <linux/termios.h>
 #include <linux/delay.h>
 
@@ -68,6 +69,7 @@ static inline struct serdev_device *to_serdev_device(struct device *d)
  * @remove:	unbinds this driver from the serdev device.
  */
 struct serdev_device_driver {
+	const struct serdev_device_id *id_table;
 	struct device_driver driver;
 	int	(*probe)(struct serdev_device *);
 	void	(*remove)(struct serdev_device *);
-- 
2.17.0