From: Pavel Machek <pavel@ucw.cz>
To: NeilBrown <neilb@suse.de>
Cc: Samuel Ortiz <sameo@linux.intel.com>,
Tony Lindgren <tony@atomide.com>,
Lee Jones <lee.jones@linaro.org>,
Sebastian Reichel <sre@kernel.org>,
Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>,
David Woodhouse <dwmw2@infradead.org>,
GTA04 owners <gta04-owner@goldelico.com>,
linux-omap@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-pm@vger.kernel.org
Subject: Re: [PATCH 13/15] twl4030_charger: add ac/mode to match usb/mode
Date: Mon, 2 Mar 2015 22:13:27 +0100 [thread overview]
Message-ID: <20150302211327.GQ13270@amd> (raw)
In-Reply-To: <20150224043352.4243.8071.stgit@notabene.brown>
On Tue 2015-02-24 15:33:53, NeilBrown wrote:
> This allows AC charging to be turned off, much like usb charging.
>
> "continuous" (aka "linear") mode maps to the CVENAC (constant voltage)
> feature of the twl4030.
>
> Signed-off-by: NeilBrown <neilb@suse.de>
Acked-by: Pavel Machek <pavel@ucw.cz>
> --- a/drivers/power/twl4030_charger.c
> +++ b/drivers/power/twl4030_charger.c
> @@ -112,7 +112,7 @@ struct twl4030_bci {
> int ichg_eoc, ichg_lo, ichg_hi;
> int usb_cur, ac_cur;
> bool ac_is_active;
> - int usb_mode; /* charging mode requested */
> + int usb_mode, ac_mode; /* charging mode requested */
> #define CHARGE_OFF 0
> #define CHARGE_AUTO 1
> #define CHARGE_LINEAR 2
> @@ -449,12 +449,18 @@ static int twl4030_charger_enable_usb(struct twl4030_bci *bci, bool enable)
> /*
> * Enable/Disable AC Charge funtionality.
> */
> -static int twl4030_charger_enable_ac(bool enable)
> +static int twl4030_charger_enable_ac(struct twl4030_bci *bci, bool enable)
> {
> int ret;
>
> - if (enable)
> - ret = twl4030_clear_set_boot_bci(0, TWL4030_BCIAUTOAC);
> + if (bci->ac_mode == CHARGE_OFF)
> + enable = false;
> +
> + if (enable && bci->ac_mode == CHARGE_LINEAR)
> + ret = twl4030_clear_set_boot_bci(0, (TWL4030_CVENAC |
> + TWL4030_BCIAUTOAC));
> + else if (enable)
> + ret = twl4030_clear_set_boot_bci(TWL4030_CVENAC, TWL4030_BCIAUTOAC);
> else
> ret = twl4030_clear_set_boot_bci(TWL4030_BCIAUTOAC, 0);
>
> @@ -688,9 +694,15 @@ twl4030_bci_mode_store(struct device *dev, struct device_attribute *attr,
> mode = 2;
> else
> return -EINVAL;
> - twl4030_charger_enable_usb(bci, false);
> - bci->usb_mode = mode;
> - status = twl4030_charger_enable_usb(bci, true);
> + if (dev == bci->ac.dev) {
> + twl4030_charger_enable_ac(bci, false);
> + bci->ac_mode = mode;
> + status = twl4030_charger_enable_ac(bci, true);
> + } else {
> + twl4030_charger_enable_usb(bci, false);
> + bci->usb_mode = mode;
> + status = twl4030_charger_enable_usb(bci, true);
> + }
> return (status == 0) ? n : status;
> }
>
> @@ -704,9 +716,13 @@ twl4030_bci_mode_show(struct device *dev,
> struct twl4030_bci *bci = dev_get_drvdata(dev->parent);
> int len = 0;
> int i;
> + int mode = bci->usb_mode;
> +
> + if (dev == bci->ac.dev)
> + mode = bci->ac_mode;
>
> for (i = 0; i < ARRAY_SIZE(modes); i++)
> - if (bci->usb_mode == i)
> + if (mode == i)
> len += snprintf(buf+len, PAGE_SIZE-len,
> "[%s] ", modes[i]);
> else
> @@ -900,6 +916,7 @@ static int __init twl4030_bci_probe(struct platform_device *pdev)
> else
> bci->usb_cur = 100000; /* 100mA */
> bci->usb_mode = CHARGE_AUTO;
> + bci->ac_mode = CHARGE_AUTO;
>
> bci->dev = &pdev->dev;
> bci->irq_chg = platform_get_irq(pdev, 0);
> @@ -988,10 +1005,12 @@ static int __init twl4030_bci_probe(struct platform_device *pdev)
> dev_warn(&pdev->dev, "could not create sysfs file\n");
> if (device_create_file(bci->usb.dev, &dev_attr_mode))
> dev_warn(&pdev->dev, "could not create sysfs file\n");
> + if (device_create_file(bci->ac.dev, &dev_attr_mode))
> + dev_warn(&pdev->dev, "could not create sysfs file\n");
> if (device_create_file(bci->ac.dev, &dev_attr_max_current))
> dev_warn(&pdev->dev, "could not create sysfs file\n");
>
> - twl4030_charger_enable_ac(true);
> + twl4030_charger_enable_ac(bci, true);
> if (!IS_ERR_OR_NULL(bci->transceiver))
> twl4030_bci_usb_ncb(&bci->usb_nb,
> bci->transceiver->last_event,
> @@ -1014,13 +1033,14 @@ static int __exit twl4030_bci_remove(struct platform_device *pdev)
> {
> struct twl4030_bci *bci = platform_get_drvdata(pdev);
>
> - twl4030_charger_enable_ac(false);
> + twl4030_charger_enable_ac(bci, false);
> twl4030_charger_enable_usb(bci, false);
> twl4030_charger_enable_backup(0, 0);
>
> device_remove_file(bci->usb.dev, &dev_attr_max_current);
> device_remove_file(bci->ac.dev, &dev_attr_max_current);
> device_remove_file(bci->usb.dev, &dev_attr_mode);
> + device_remove_file(bci->ac.dev, &dev_attr_mode);
> /* mask interrupts */
> twl_i2c_write_u8(TWL4030_MODULE_INTERRUPTS, 0xff,
> TWL4030_INTERRUPTS_BCIIMR1A);
>
>
> --
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
> Please read the FAQ at http://www.tux.org/lkml/
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
next prev parent reply other threads:[~2015-03-02 21:13 UTC|newest]
Thread overview: 56+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-02-24 4:33 [PATCH 00/15] Enhance twl4030_charger functionality NeilBrown
2015-02-24 4:33 ` [PATCH 02/15] twl4030_charger: use devm_request_threaded_irq NeilBrown
2015-02-24 4:33 ` [PATCH 03/15] twl4030_charger: use devres for power_supply_register and kzalloc NeilBrown
2015-03-07 20:25 ` Sebastian Reichel
2015-02-24 4:33 ` [PATCH 01/15] power_supply core: support use of devres to register/unregister a power supply NeilBrown
2015-02-26 2:25 ` Sebastian Reichel
2015-02-24 4:33 ` [PATCH 06/15] twl4030_charger: split uA calculation into a function NeilBrown
2015-03-02 21:05 ` Pavel Machek
2015-03-04 9:20 ` NeilBrown
2015-02-24 4:33 ` [PATCH 07/15] twl4030_charger: allow fine control of charger current NeilBrown
2015-03-02 21:05 ` Pavel Machek
2015-03-04 6:47 ` NeilBrown
2015-03-04 10:24 ` Pavel Machek
2015-03-07 20:32 ` Sebastian Reichel
2015-02-24 4:33 ` [PATCH 08/15] twl4030_charger: distinguish between USB current and 'AC' current NeilBrown
2015-03-02 21:05 ` Pavel Machek
2015-03-04 6:53 ` NeilBrown
2015-02-24 4:33 ` [PATCH 05/15] twl4030_charger: trust phy to determine when USB power is available NeilBrown
2015-02-24 4:33 ` [PATCH 04/15] twl4030_charger: use runtime_pm to keep usb phy active while charging NeilBrown
2015-02-25 7:24 ` Lee Jones
2015-03-05 5:48 ` NeilBrown
2015-02-24 4:33 ` [PATCH 11/15] twl4030_charger: enable manual enable/disable of usb charging NeilBrown
2015-03-02 21:03 ` Pavel Machek
2015-03-04 6:15 ` NeilBrown
2015-03-04 10:19 ` Pavel Machek
2015-02-24 4:33 ` [PATCH 12/15] twl4030_charger: add software controlled linear charging mode NeilBrown
2015-03-02 21:09 ` Pavel Machek
2015-03-05 6:33 ` NeilBrown
2015-03-06 21:24 ` twl4030_charger: need changes to get probed? Pavel Machek
2015-03-06 21:57 ` Pali Rohár
2015-03-06 22:12 ` Grazvydas Ignotas
2015-03-06 22:40 ` Pavel Machek
2015-03-06 22:56 ` Pali Rohár
2015-03-07 15:56 ` Grazvydas Ignotas
2015-03-07 16:43 ` Pali Rohár
2015-04-26 10:13 ` Pavel Machek
2015-03-07 21:01 ` Sebastian Reichel
2015-03-09 0:06 ` NeilBrown
2015-03-09 11:14 ` Sebastian Reichel
2015-02-24 4:33 ` [PATCH 09/15] twl4030_charger: allow max_current to be managed via sysfs NeilBrown
2015-03-02 21:05 ` Pavel Machek
2015-03-05 6:26 ` NeilBrown
2015-03-05 8:17 ` Pavel Machek
2015-03-07 20:37 ` Sebastian Reichel
2015-02-24 4:33 ` [PATCH 10/15] twl4030_charger: only draw USB current as negotiated with host NeilBrown
2015-03-02 21:05 ` Pavel Machek
2015-02-24 4:33 ` [PATCH 14/15] twl4030_charger: Increase current carefully while watching voltage NeilBrown
2015-03-02 21:29 ` Pavel Machek
2015-03-05 6:51 ` NeilBrown
2015-02-24 4:33 ` [PATCH 13/15] twl4030_charger: add ac/mode to match usb/mode NeilBrown
2015-03-02 21:13 ` Pavel Machek [this message]
2015-03-06 21:59 ` Grazvydas Ignotas
2015-03-22 23:13 ` NeilBrown
2015-02-24 4:33 ` [PATCH 15/15] twl4030_charger: assume a 'charger' can supply maximum current NeilBrown
2015-03-02 21:29 ` Pavel Machek
2015-03-05 6:45 ` NeilBrown
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20150302211327.GQ13270@amd \
--to=pavel@ucw.cz \
--cc=dbaryshkov@gmail.com \
--cc=dwmw2@infradead.org \
--cc=gta04-owner@goldelico.com \
--cc=lee.jones@linaro.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-omap@vger.kernel.org \
--cc=linux-pm@vger.kernel.org \
--cc=neilb@suse.de \
--cc=sameo@linux.intel.com \
--cc=sre@kernel.org \
--cc=tony@atomide.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).