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From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To: Matti Vaittinen <mazziesaccount@gmail.com>
Cc: "Matti Vaittinen" <matti.vaittinen@fi.rohmeurope.com>,
	"Matti Vaittinen" <matti.vaittinen@linux.dev>,
	"Andreas Kemnade" <andreas@kemnade.info>,
	"Sebastian Reichel" <sre@kernel.org>,
	linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org,
	"Kalle Niemi" <kaleposti@gmail.com>,
	"Topi Sonkajärvi" <sonkajarvi@hotmail.com>,
	"Mikko Mutanen" <mikko.mutanen@fi.rohmeurope.com>,
	"Markus Laine" <markus.laine@fi.rohmeurope.com>
Subject: Re: [PATCH 2/5] power: supply: bd71828: Fix current direction
Date: Mon, 10 Aug 2026 20:18:36 +0300	[thread overview]
Message-ID: <anoH7BweSt-ZPAe0@ashevche-desk.local> (raw)
In-Reply-To: <22c6816204b3f2a8b50df8171e384937822d195b.1786356145.git.mazziesaccount@gmail.com>

On Mon, Aug 10, 2026 at 01:09:07PM +0300, Matti Vaittinen wrote:

> Both the current and the average current registers contain same
> 'direction' -bit to denote the direction of the current. The code
> reading these registers incorrectly caches the direction read from the
> first register, and uses it also for the second.
> 
> Fix this by initializing the direction bit for both register reads.

...

> static int bd71828_get_current_ds_adc(struct bd71828_power *pwr, int *curr, int

>  {
>  	__be16 tmp_curr;
>  	char *tmp = (char *)&tmp_curr;
> -	int dir = 1;
>  	int regs[] = { pwr->regs->ibat, pwr->regs->ibat_avg };
>  	int *vals[] = { curr, curr_avg };
>  	int ret, i;

> -	for (dir = 1, i = 0; i < ARRAY_SIZE(regs); i++) {
> +	for (i = 0; i < ARRAY_SIZE(regs); i++) {


While at it

	for (unsigned int i = 0; i < ARRAY_SIZE(regs); i++) {

> +		int dir = 1;


...and drop it from the top declaration.

-- 
With Best Regards,
Andy Shevchenko



  reply	other threads:[~2026-08-10 17:18 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-08-10 10:08 [PATCH 0/5] ROHM bd71828 power-supply fixes Matti Vaittinen
2026-08-10 10:08 ` [PATCH 1/5] power: supply: bd71815: Fix temperature reading Matti Vaittinen
2026-08-10 10:09 ` [PATCH 2/5] power: supply: bd71828: Fix current direction Matti Vaittinen
2026-08-10 17:18   ` Andy Shevchenko [this message]
2026-08-10 10:09 ` [PATCH 3/5] power: supply: bd71828: Drop duplicate power-supply property Matti Vaittinen
2026-08-10 18:01   ` Andy Shevchenko
2026-08-10 10:09 ` [PATCH 4/5] power: supply: bd71828: Do not hide errors Matti Vaittinen
2026-08-10 10:10 ` [PATCH 5/5] power: supply: bd99954: Drop bad register fields Matti Vaittinen
2026-08-10 18:03   ` Andy Shevchenko

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