From: Krzysztof Kozlowski <k.kozlowski@samsung.com>
To: Chris Lapa <chris@lapa.com.au>,
dwmw2@infradead.org, dbaryshkov@gmail.com, sre@kernel.org,
mark.rutland@arm.com, robh+dt@kernel.org
Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-pm@vger.kernel.org
Subject: Re: [PATCH v3 4/7] max8903: adds requesting of gpios.
Date: Fri, 17 Jun 2016 08:30:15 +0200 [thread overview]
Message-ID: <576398F7.4050704@samsung.com> (raw)
In-Reply-To: <1466139626-51434-5-git-send-email-chris@lapa.com.au>
On 06/17/2016 07:00 AM, Chris Lapa wrote:
> From: Chris Lapa <chris@lapa.com.au>
>
> This change ensures all gpios are available for the driver to use.
>
> Signed-off-by: Chris Lapa <chris@lapa.com.au>
> ---
> drivers/power/max8903_charger.c | 79 ++++++++++++++++++++++++++++++++++++-----
> 1 file changed, 70 insertions(+), 9 deletions(-)
>
> diff --git a/drivers/power/max8903_charger.c b/drivers/power/max8903_charger.c
> index dbd911c4..c068efe 100644
> --- a/drivers/power/max8903_charger.c
> +++ b/drivers/power/max8903_charger.c
> @@ -212,6 +212,16 @@ static int max8903_probe(struct platform_device *pdev)
>
> if (pdata->dc_valid) {
> if (pdata->dok && gpio_is_valid(pdata->dok)) {
> + ret = devm_gpio_request(dev,
> + pdata->dok,
No need to split these two arguments. They fit in 80 chars.
> + data->psy_desc.name);
> + if (ret) {
> + dev_err(dev,
> + "Failed GPIO request for dok: %d err %d\n",
> + pdata->dok, ret);
Indentation here is wrong. These should be aligned to first argument (dev).
> + return -EINVAL;
Return 'ret'.
All these three comments apply also to code below.
Anyway the probe function is getting bigger and more difficult to read.
Consider factoring out some code to a separate function. For example all
the GPIO handling stuff could be factored.
Best regards,
Krzysztof
> + }
> +
> gpio = pdata->dok; /* PULL_UPed Interrupt */
> ta_in = gpio_get_value(gpio) ? 0 : 1;
> } else {
> @@ -223,6 +233,16 @@ static int max8903_probe(struct platform_device *pdev)
>
> if (pdata->dcm) {
> if (gpio_is_valid(pdata->dcm)) {
> + ret = devm_gpio_request(dev,
> + pdata->dcm,
> + data->psy_desc.name);
> + if (ret) {
> + dev_err(dev,
> + "Failed GPIO request for dcm: %d err %d\n",
> + pdata->dcm, ret);
> + return -EINVAL;
> + }
> +
> gpio = pdata->dcm; /* Output */
> gpio_set_value(gpio, ta_in);
> } else {
> @@ -233,6 +253,16 @@ static int max8903_probe(struct platform_device *pdev)
>
> if (pdata->usb_valid) {
> if (pdata->uok && gpio_is_valid(pdata->uok)) {
> + ret = devm_gpio_request(dev,
> + pdata->uok,
> + data->psy_desc.name);
> + if (ret) {
> + dev_err(dev,
> + "Failed GPIO request for uok: %d err %d\n",
> + pdata->uok, ret);
> + return -EINVAL;
> + }
> +
> gpio = pdata->uok;
> usb_in = gpio_get_value(gpio) ? 0 : 1;
> } else {
> @@ -244,6 +274,16 @@ static int max8903_probe(struct platform_device *pdev)
>
> if (pdata->cen) {
> if (gpio_is_valid(pdata->cen)) {
> + ret = devm_gpio_request(dev,
> + pdata->cen,
> + data->psy_desc.name);
> + if (ret) {
> + dev_err(dev,
> + "Failed GPIO request for cen: %d err %d\n",
> + pdata->cen, ret);
> + return -EINVAL;
> + }
> +
> gpio_set_value(pdata->cen, (ta_in || usb_in) ? 0 : 1);
> } else {
> dev_err(dev, "Invalid pin: cen.\n");
> @@ -252,23 +292,44 @@ static int max8903_probe(struct platform_device *pdev)
> }
>
> if (pdata->chg) {
> - if (!gpio_is_valid(pdata->chg)) {
> - dev_err(dev, "Invalid pin: chg.\n");
> - return -EINVAL;
> + if (gpio_is_valid(pdata->chg)) {
> + ret = devm_gpio_request(dev,
> + pdata->chg,
> + data->psy_desc.name);
> + if (ret) {
> + dev_err(dev,
> + "Failed GPIO request for chg: %d err %d\n",
> + pdata->chg, ret);
> + return -EINVAL;
> + }
> }
> }
>
> if (pdata->flt) {
> - if (!gpio_is_valid(pdata->flt)) {
> - dev_err(dev, "Invalid pin: flt.\n");
> - return -EINVAL;
> + if (gpio_is_valid(pdata->flt)) {
> + ret = devm_gpio_request(dev,
> + pdata->flt,
> + data->psy_desc.name);
> + if (ret) {
> + dev_err(dev,
> + "Failed GPIO request for flt: %d err %d\n",
> + pdata->flt, ret);
> + return -EINVAL;
> + }
> }
> }
>
> if (pdata->usus) {
> - if (!gpio_is_valid(pdata->usus)) {
> - dev_err(dev, "Invalid pin: usus.\n");
> - return -EINVAL;
> + if (gpio_is_valid(pdata->usus)) {
> + ret = devm_gpio_request(dev,
> + pdata->usus,
> + data->psy_desc.name);
> + if (ret) {
> + dev_err(dev,
> + "Failed GPIO request for usus: %d err %d\n",
> + pdata->usus, ret);
> + return -EINVAL;
> + }
> }
> }
>
>
next prev parent reply other threads:[~2016-06-17 6:30 UTC|newest]
Thread overview: 68+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-02 6:44 [PATCH 0/2] max8903: Add device tree support and logic fixup chris
2016-06-02 6:44 ` [PATCH 1/2] max8903: adds support for initiation via device tree chris
2016-06-09 10:35 ` Krzysztof Kozlowski
2016-06-10 5:35 ` Chris Lapa
2016-06-10 6:13 ` Krzysztof Kozlowski
2016-06-10 10:23 ` Krzysztof Kozlowski
2016-06-02 6:44 ` [PATCH 2/2] max8903: cleans up confusing relationship between dc_valid, dok and dcm chris
2016-06-10 12:32 ` [PATCH v2 0/4] max8903: Add device tree support and logic fixup Chris Lapa
2016-06-10 12:32 ` [PATCH v2 1/4] max8903: adds documentation for device tree bindings Chris Lapa
2016-06-10 13:51 ` Krzysztof Kozlowski
2016-06-14 1:54 ` Chris Lapa
2016-06-16 6:35 ` Krzysztof Kozlowski
2016-06-16 6:48 ` Chris Lapa
2016-06-10 12:32 ` [PATCH v2 2/4] max8903: adds support for initiation via device tree Chris Lapa
2016-06-10 14:02 ` Krzysztof Kozlowski
2016-06-14 1:50 ` Chris Lapa
2016-06-10 12:32 ` [PATCH v2 3/4] max8903: cleans up confusing relationship between dc_valid, dok and dcm Chris Lapa
2016-06-10 12:32 ` [PATCH v2 4/4] max8903: remove unnecessary malloc failed message print out Chris Lapa
2016-06-10 14:08 ` Krzysztof Kozlowski
2016-06-17 5:00 ` [PATCH v3 0/7] max8903: Add device tree support and misc fixes Chris Lapa
2016-06-17 5:00 ` [PATCH v3 1/7] max8903: adds documentation for device tree bindings Chris Lapa
2016-06-17 6:15 ` Krzysztof Kozlowski
2016-06-20 13:22 ` Rob Herring
2016-06-20 23:43 ` Chris Lapa
2016-06-17 5:00 ` [PATCH v3 2/7] max8903: store pointer to pdata instead of copying it Chris Lapa
2016-06-17 6:14 ` Krzysztof Kozlowski
2016-06-17 5:00 ` [PATCH v3 3/7] max8903: cleans up confusing relationship between dc_valid, dok and dcm Chris Lapa
2016-06-17 6:23 ` Krzysztof Kozlowski
2016-06-17 6:26 ` Krzysztof Kozlowski
2016-06-17 6:28 ` Chris Lapa
2016-06-17 6:42 ` Krzysztof Kozlowski
2016-06-19 13:48 ` Chris Lapa
2016-06-17 5:00 ` [PATCH v3 4/7] max8903: adds requesting of gpios Chris Lapa
2016-06-17 6:30 ` Krzysztof Kozlowski [this message]
2016-06-19 13:51 ` Chris Lapa
2016-06-17 5:00 ` [PATCH v3 5/7] max8903: removes non zero validity checks on gpios Chris Lapa
2016-06-17 6:35 ` Krzysztof Kozlowski
2016-06-17 5:00 ` [PATCH v3 6/7] max8903: remove unnecessary 'out of memory' error message Chris Lapa
2016-06-17 6:35 ` Krzysztof Kozlowski
2016-06-17 5:00 ` [PATCH v3 7/7] max8903: adds support for initiation via device tree Chris Lapa
2016-06-17 6:41 ` Krzysztof Kozlowski
2016-06-19 13:52 ` Chris Lapa
2016-06-19 22:27 ` [PATCH v4 0/7] max8903: Add device tree support and misc fixes Chris Lapa
2016-06-19 22:27 ` [PATCH v4 1/7] max8903: adds documentation for device tree bindings Chris Lapa
2016-06-20 12:17 ` Krzysztof Kozlowski
2016-06-19 22:27 ` [PATCH v4 2/7] max8903: store pointer to pdata instead of copying it Chris Lapa
2016-06-20 12:18 ` Krzysztof Kozlowski
2016-06-19 22:27 ` [PATCH v4 3/7] max8903: cleans up confusing relationship between dc_valid, dok and dcm Chris Lapa
2016-06-20 12:18 ` Krzysztof Kozlowski
2016-06-19 22:27 ` [PATCH v4 4/7] max8903: adds requesting of gpios Chris Lapa
2016-06-20 12:20 ` Krzysztof Kozlowski
2016-06-19 22:27 ` [PATCH v4 5/7] max8903: removes non zero validity checks on gpios Chris Lapa
2016-06-20 12:21 ` Krzysztof Kozlowski
2016-06-19 22:27 ` [PATCH v4 6/7] max8903: remove unnecessary 'out of memory' error message Chris Lapa
2016-06-20 12:22 ` Krzysztof Kozlowski
2016-06-19 22:27 ` [PATCH v4 7/7] max8903: adds support for initiation via device tree Chris Lapa
2016-06-20 12:23 ` Krzysztof Kozlowski
2016-06-24 2:26 ` [PATCH v5 0/7] max8903: Add device tree support and misc fixes Chris Lapa
2016-06-24 2:26 ` [PATCH v5 1/7] max8903: adds documentation for device tree bindings Chris Lapa
2016-06-28 20:55 ` Rob Herring
2016-06-24 2:26 ` [PATCH v5 2/7] max8903: store pointer to pdata instead of copying it Chris Lapa
2016-06-24 2:26 ` [PATCH v5 3/7] max8903: cleans up confusing relationship between dc_valid, dok and dcm Chris Lapa
2016-06-24 2:26 ` [PATCH v5 4/7] max8903: adds requesting of gpios Chris Lapa
2016-06-24 2:26 ` [PATCH v5 5/7] max8903: removes non zero validity checks on gpios Chris Lapa
2016-06-24 2:26 ` [PATCH v5 6/7] max8903: remove unnecessary 'out of memory' error message Chris Lapa
2016-06-24 2:26 ` [PATCH v5 7/7] max8903: adds support for initiation via device tree Chris Lapa
2016-06-28 18:16 ` [PATCH v5 0/7] max8903: Add device tree support and misc fixes Sebastian Reichel
2016-06-28 23:05 ` Chris Lapa
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