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Commit bb03ffb9 authored by Todd Broch's avatar Todd Broch Committed by Lee Jones
Browse files

mfd: cros_ec: Instantiate sub-devices from device tree 



If the EC device tree node has sub-nodes, try to instantiate them as
MFD sub-devices.  We can configure the EC features provided by the board.

Signed-off-by: default avatarTodd Broch <tbroch@chromium.org>
Signed-off-by: default avatarJavier Martinez Canillas <javier.martinez@collabora.co.uk>
Reviewed-by: default avatarGwendal Grignou <gwendal@chromium.org>
Tested-by: default avatarHeiko Stuebner <heiko@sntech.de>
Signed-off-by: default avatarLee Jones <lee.jones@linaro.org>
parent e7b707f9

drivers/mfd/cros_ec.c

+11 −11
Original line number Diff line number Diff line
@@ -17,6 +17,7 @@ 
 * battery charging and regulator control, firmware update.

 */



#include <linux/of_platform.h>

#include <linux/interrupt.h>

#include <linux/slab.h>

#include <linux/module.h>
@@ -108,19 +109,9 @@ int cros_ec_cmd_xfer(struct cros_ec_device *ec_dev, 
EXPORT_SYMBOL(cros_ec_cmd_xfer);



static const struct mfd_cell cros_devs[] = {

	{

		.name = "cros-ec-keyb",

		.id = 1,

		.of_compatible = "google,cros-ec-keyb",

	},

	{

		.name = "cros-ec-i2c-tunnel",

		.id = 2,

		.of_compatible = "google,cros-ec-i2c-tunnel",

	},

	{

		.name = "cros-ec-ctl",

		.id = 3,

		.id = PLATFORM_DEVID_AUTO,

	},

};
@@ -150,6 +141,15 @@ int cros_ec_register(struct cros_ec_device *ec_dev) 
		return err;

	}



	if (IS_ENABLED(CONFIG_OF) && dev->of_node) {

		err = of_platform_populate(dev->of_node, NULL, NULL, dev);

		if (err) {

			mfd_remove_devices(dev);

			dev_err(dev, "Failed to register sub-devices\n");

			return err;

		}

	}



	dev_info(dev, "Chrome EC device registered\n");



	return 0;