Commit 3c4d77b6 authored by Nick Crews's avatar Nick Crews Committed by Enric Balletbo i Serra
Browse files

platform/chrome: wilco_ec: Add charging config driver 



Add a device to control the charging algorithm used on Wilco devices,
which will be picked up by the drivers/power/supply/wilco-charger.c
driver. See Documentation/ABI/testing/sysfs-class-power-wilco for the
userspace interface and other info.

Signed-off-by: default avatarNick Crews <ncrews@chromium.org>
Signed-off-by: default avatarEnric Balletbo i Serra <enric.balletbo@collabora.com>
parent fdf0fe2d

drivers/platform/chrome/wilco_ec/core.c

+14 −1
Original line number Diff line number Diff line
@@ -93,6 +93,16 @@ static int wilco_ec_probe(struct platform_device *pdev) 
		goto unregister_rtc;

	}



	/* Register child device to be found by charger config driver. */

	ec->charger_pdev = platform_device_register_data(dev, "wilco-charger",

							 PLATFORM_DEVID_AUTO,

							 NULL, 0);

	if (IS_ERR(ec->charger_pdev)) {

		dev_err(dev, "Failed to create charger platform device\n");

		ret = PTR_ERR(ec->charger_pdev);

		goto remove_sysfs;

	}



	/* Register child device that will be found by the telemetry driver. */

	ec->telem_pdev = platform_device_register_data(dev, "wilco_telem",

						       PLATFORM_DEVID_AUTO,
@@ -100,11 +110,13 @@ static int wilco_ec_probe(struct platform_device *pdev) 
	if (IS_ERR(ec->telem_pdev)) {

		dev_err(dev, "Failed to create telemetry platform device\n");

		ret = PTR_ERR(ec->telem_pdev);

		goto remove_sysfs;

		goto unregister_charge_config;

	}



	return 0;



unregister_charge_config:

	platform_device_unregister(ec->charger_pdev);

remove_sysfs:

	wilco_ec_remove_sysfs(ec);

unregister_rtc:
@@ -120,6 +132,7 @@ static int wilco_ec_remove(struct platform_device *pdev) 
{

	struct wilco_ec_device *ec = platform_get_drvdata(pdev);



	platform_device_unregister(ec->charger_pdev);

	wilco_ec_remove_sysfs(ec);

	platform_device_unregister(ec->telem_pdev);

	platform_device_unregister(ec->rtc_pdev);

include/linux/platform_data/wilco-ec.h

+2 −0
Original line number Diff line number Diff line
@@ -29,6 +29,7 @@ 
 * @data_size: Size of the data buffer used for EC communication.

 * @debugfs_pdev: The child platform_device used by the debugfs sub-driver.

 * @rtc_pdev: The child platform_device used by the RTC sub-driver.

 * @charger_pdev: Child platform_device used by the charger config sub-driver.

 * @telem_pdev: The child platform_device used by the telemetry sub-driver.

 */

struct wilco_ec_device {
@@ -41,6 +42,7 @@ struct wilco_ec_device { 
	size_t data_size;

	struct platform_device *debugfs_pdev;

	struct platform_device *rtc_pdev;

	struct platform_device *charger_pdev;

	struct platform_device *telem_pdev;

};

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