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Date: Fri, 15 Apr 2016 16:20:53 +0200
From: Sebastian Reichel <sre@...nel.org>
To: Chanwoo Choi <cw00.choi@...sung.com>
Cc: dbaryshkov@...il.com, dwmw2@...radead.org,
linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org,
devicetree@...r.kernel.org
Subject: Re: [RESEND PATCH 2/3] power: axp288_charger: Replace deprecatd API
of extcon
Hi,
On Fri, Apr 15, 2016 at 09:43:35AM +0900, Chanwoo Choi wrote:
> This patch removes the deprecated notifier API of extcon framework and then use
> the new extcon API[2] with the unique id[1] to indicate the each external
> connector. Alter deprecated API as following:
> - extcon_register_interest() -> extcon_register_notifier()
> - extcon_unregister_interest() -> extcon_unregister_notifier()
> - extcon_get_cable_state() -> extcon_get_cable_state_()
>
> And, extcon alters the name of USB charger connector in patch[3] as following:
> - EXTCON_CHG_USB_SDP /* Standard Downstream Port */
> - EXTCON_CHG_USB_DCP /* Dedicated Charging Port */
> - EXTCON_CHG_USB_CDP /* Charging Downstream Port */
> - EXTCON_CHG_USB_ACA /* Accessory Charger Adapter */
>
> [1] Commit 2a9de9c0f08d61
> - ("extcon: Use the unique id for external connector instead of string)
> [2] Commit 046050f6e623e4
> - ("extcon: Update the prototype of extcon_register_notifier() with enum extcon
> [3] Commit 11eecf910bd81d
> - ("extcon: Modify the id and name of external connector")
>
> Signed-off-by: Chanwoo Choi <cw00.choi@...sung.com>
> ---
> drivers/power/axp288_charger.c | 77 +++++++++++++++++++++++++++++-------------
> 1 file changed, 53 insertions(+), 24 deletions(-)
>
> diff --git a/drivers/power/axp288_charger.c b/drivers/power/axp288_charger.c
> index e4d569f57acc..e5c2569befa6 100644
> --- a/drivers/power/axp288_charger.c
> +++ b/drivers/power/axp288_charger.c
> @@ -129,10 +129,6 @@
>
> #define AXP288_EXTCON_DEV_NAME "axp288_extcon"
>
> -#define AXP288_EXTCON_SLOW_CHARGER "SLOW-CHARGER"
> -#define AXP288_EXTCON_DOWNSTREAM_CHARGER "CHARGE-DOWNSTREAM"
> -#define AXP288_EXTCON_FAST_CHARGER "FAST-CHARGER"
> -
> enum {
> VBUS_OV_IRQ = 0,
> CHARGE_DONE_IRQ,
> @@ -158,7 +154,7 @@ struct axp288_chrg_info {
> /* OTG/Host mode */
> struct {
> struct work_struct work;
> - struct extcon_specific_cable_nb cable;
> + struct extcon_dev *cable;
> struct notifier_block id_nb;
> bool id_short;
> } otg;
> @@ -586,17 +582,15 @@ static void axp288_charger_extcon_evt_worker(struct work_struct *work)
> bool old_connected = info->cable.connected;
>
> /* Determine cable/charger type */
> - if (extcon_get_cable_state(edev, AXP288_EXTCON_SLOW_CHARGER) > 0) {
> + if (extcon_get_cable_state_(edev, EXTCON_CHG_USB_SDP) > 0) {
> dev_dbg(&info->pdev->dev, "USB SDP charger is connected");
> info->cable.connected = true;
> info->cable.chg_type = POWER_SUPPLY_TYPE_USB;
> - } else if (extcon_get_cable_state(edev,
> - AXP288_EXTCON_DOWNSTREAM_CHARGER) > 0) {
> + } else if (extcon_get_cable_state_(edev, EXTCON_CHG_USB_CDP) > 0) {
> dev_dbg(&info->pdev->dev, "USB CDP charger is connected");
> info->cable.connected = true;
> info->cable.chg_type = POWER_SUPPLY_TYPE_USB_CDP;
> - } else if (extcon_get_cable_state(edev,
> - AXP288_EXTCON_FAST_CHARGER) > 0) {
> + } else if (extcon_get_cable_state_(edev, EXTCON_CHG_USB_DCP) > 0) {
> dev_dbg(&info->pdev->dev, "USB DCP charger is connected");
> info->cable.connected = true;
> info->cable.chg_type = POWER_SUPPLY_TYPE_USB_DCP;
> @@ -692,8 +686,8 @@ static int axp288_charger_handle_otg_evt(struct notifier_block *nb,
> {
> struct axp288_chrg_info *info =
> container_of(nb, struct axp288_chrg_info, otg.id_nb);
> - struct extcon_dev *edev = param;
> - int usb_host = extcon_get_cable_state(edev, "USB-Host");
> + struct extcon_dev *edev = info->otg.cable;
> + int usb_host = extcon_get_cable_state_(edev, EXTCON_USB_HOST);
>
> dev_dbg(&info->pdev->dev, "external connector USB-Host is %s\n",
> usb_host ? "attached" : "detached");
> @@ -848,10 +842,33 @@ static int axp288_charger_probe(struct platform_device *pdev)
> /* Register for extcon notification */
> INIT_WORK(&info->cable.work, axp288_charger_extcon_evt_worker);
> info->cable.nb.notifier_call = axp288_charger_handle_cable_evt;
> - ret = extcon_register_notifier(info->cable.edev, EXTCON_NONE, &info->cable.nb);
> + ret = extcon_register_notifier(info->cable.edev, EXTCON_CHG_USB_SDP,
> + &info->cable.nb);
> + if (ret) {
> + dev_err(&info->pdev->dev,
> + "failed to register extcon notifier for SDP %d\n", ret);
> + return ret;
> + }
> +
> + ret = extcon_register_notifier(info->cable.edev, EXTCON_CHG_USB_CDP,
> + &info->cable.nb);
> + if (ret) {
> + dev_err(&info->pdev->dev,
> + "failed to register extcon notifier for CDP %d\n", ret);
> + extcon_unregister_notifier(info->cable.edev,
> + EXTCON_CHG_USB_SDP, &info->cable.nb);
> + return ret;
> + }
> +
> + ret = extcon_register_notifier(info->cable.edev, EXTCON_CHG_USB_DCP,
> + &info->cable.nb);
> if (ret) {
> dev_err(&info->pdev->dev,
> - "failed to register extcon notifier %d\n", ret);
> + "failed to register extcon notifier for DCP %d\n", ret);
> + extcon_unregister_notifier(info->cable.edev,
> + EXTCON_CHG_USB_SDP, &info->cable.nb);
> + extcon_unregister_notifier(info->cable.edev,
> + EXTCON_CHG_USB_CDP, &info->cable.nb);
> return ret;
> }
>
> @@ -871,14 +888,14 @@ static int axp288_charger_probe(struct platform_device *pdev)
> /* Register for OTG notification */
> INIT_WORK(&info->otg.work, axp288_charger_otg_evt_worker);
> info->otg.id_nb.notifier_call = axp288_charger_handle_otg_evt;
> - ret = extcon_register_interest(&info->otg.cable, NULL, "USB-Host",
> + ret = extcon_register_notifier(info->otg.cable, EXTCON_USB_HOST,
> &info->otg.id_nb);
> if (ret)
> dev_warn(&pdev->dev, "failed to register otg notifier\n");
>
> - if (info->otg.cable.edev)
> - info->otg.id_short = extcon_get_cable_state(
> - info->otg.cable.edev, "USB-Host");
> + if (info->otg.cable)
> + info->otg.id_short = extcon_get_cable_state_(
> + info->otg.cable, EXTCON_USB_HOST);
>
> /* Register charger interrupts */
> for (i = 0; i < CHRG_INTR_END; i++) {
> @@ -905,11 +922,17 @@ static int axp288_charger_probe(struct platform_device *pdev)
> return 0;
>
> intr_reg_failed:
> - if (info->otg.cable.edev)
> - extcon_unregister_interest(&info->otg.cable);
> + if (info->otg.cable)
> + extcon_unregister_notifier(info->otg.cable, EXTCON_USB_HOST,
> + &info->otg.id_nb);
> power_supply_unregister(info->psy_usb);
> psy_reg_failed:
> - extcon_unregister_notifier(info->cable.edev, EXTCON_NONE, &info->cable.nb);
> + extcon_unregister_notifier(info->cable.edev, EXTCON_CHG_USB_SDP,
> + &info->cable.nb);
> + extcon_unregister_notifier(info->cable.edev, EXTCON_CHG_USB_SDP,
> + &info->cable.nb);
EXTCON_CHG_USB_SDP -> EXTCON_CHG_USB_CDP?
> + extcon_unregister_notifier(info->cable.edev, EXTCON_CHG_USB_DCP,
> + &info->cable.nb);
> return ret;
> }
>
> @@ -917,10 +940,16 @@ static int axp288_charger_remove(struct platform_device *pdev)
> {
> struct axp288_chrg_info *info = dev_get_drvdata(&pdev->dev);
>
> - if (info->otg.cable.edev)
> - extcon_unregister_interest(&info->otg.cable);
> + if (info->otg.cable)
> + extcon_unregister_notifier(info->otg.cable, EXTCON_USB_HOST,
> + &info->otg.id_nb);
>
> - extcon_unregister_notifier(info->cable.edev, EXTCON_NONE, &info->cable.nb);
> + extcon_unregister_notifier(info->cable.edev, EXTCON_CHG_USB_SDP,
> + &info->cable.nb);
> + extcon_unregister_notifier(info->cable.edev, EXTCON_CHG_USB_SDP,
> + &info->cable.nb);
EXTCON_CHG_USB_SDP -> EXTCON_CHG_USB_CDP?
> + extcon_unregister_notifier(info->cable.edev, EXTCON_CHG_USB_DCP,
> + &info->cable.nb);
> power_supply_unregister(info->psy_usb);
>
> return 0;
Has this dependencies to your tree or are all dependencies already
in torvalds tree?
-- Sebastian
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