diff mbox

[4/4] mfd: 88pm800: Add support for clk subdevice

Message ID 1437476823-3358-5-git-send-email-vaibhav.hiremath@linaro.org (mailing list archive)
State New, archived
Headers show

Commit Message

Vaibhav Hiremath July 21, 2015, 11:07 a.m. UTC
This patch adds mfd_cell/clk-subdevice for 88PM800 MFD
(and family of devices).

Signed-off-by: Vaibhav Hiremath <vaibhav.hiremath@linaro.org>
---
 drivers/mfd/88pm800.c | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

Comments

Krzysztof Kozlowski July 23, 2015, 4:58 a.m. UTC | #1
2015-07-21 20:07 GMT+09:00 Vaibhav Hiremath <vaibhav.hiremath@linaro.org>:
> This patch adds mfd_cell/clk-subdevice for 88PM800 MFD
> (and family of devices).
>
> Signed-off-by: Vaibhav Hiremath <vaibhav.hiremath@linaro.org>
> ---
>  drivers/mfd/88pm800.c | 25 +++++++++++++++++++++++++
>  1 file changed, 25 insertions(+)
>

Looks OK:
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>

Best regards,
Krzysztof
Lee Jones July 23, 2015, 3:50 p.m. UTC | #2
On Tue, 21 Jul 2015, Vaibhav Hiremath wrote:

> This patch adds mfd_cell/clk-subdevice for 88PM800 MFD
> (and family of devices).
> 
> Signed-off-by: Vaibhav Hiremath <vaibhav.hiremath@linaro.org>
> ---
>  drivers/mfd/88pm800.c | 25 +++++++++++++++++++++++++
>  1 file changed, 25 insertions(+)
> 
> diff --git a/drivers/mfd/88pm800.c b/drivers/mfd/88pm800.c
> index f104a32..9723eac 100644
> --- a/drivers/mfd/88pm800.c
> +++ b/drivers/mfd/88pm800.c
> @@ -173,6 +173,14 @@ static const struct mfd_cell regulator_devs[] = {
>  	},
>  };
>  
> +static struct mfd_cell clk_devs[] = {
> +	{
> +	 .name = "88pm80x-clk",
> +	 .of_compatible = "marvell,88pm800-clk",
> +	 .id = -1,
> +	},
> +};

Why does each device in 88pm800.c have it's own mfd_cell?

Take the opportunity to correct the tabbing in the remainder of the
file.  Make that fix-up patch 1 of this set.  Then fixup this patch.

>  static const struct regmap_irq pm800_irqs[] = {
>  	/* INT0 */
>  	[PM800_IRQ_ONKEY] = {
> @@ -344,6 +352,17 @@ static int device_regulator_init(struct pm80x_chip *chip)
>  			      ARRAY_SIZE(regulator_devs), NULL, 0, NULL);
>  }
>  
> +static int device_clk_init(struct pm80x_chip *chip)
> +{
> +	if (chip->type == CHIP_PM800)
> +		clk_devs[0].name = "88pm800-clk";
> +	else if (chip->type == CHIP_PM860)
> +		clk_devs[0].name = "88pm860-clk";
> +
> +	return mfd_add_devices(chip->dev, 0, &clk_devs[0],
> +			      ARRAY_SIZE(clk_devs), NULL, 0, NULL);
> +}
> +
>  static int device_irq_init_800(struct pm80x_chip *chip)
>  {
>  	struct regmap *map = chip->regmap;
> @@ -513,6 +532,12 @@ static int device_800_init(struct pm80x_chip *chip)
>  		goto out;
>  	}
>  
> +	ret = device_clk_init(chip);
> +	if (ret) {
> +		dev_err(chip->dev, "Failed to add clk subdev\n");
> +		goto out;
> +	}

Why do these have to be seperate?

>  	return 0;
>  out_dev:
>  	mfd_remove_devices(chip->dev);
Vaibhav Hiremath Aug. 5, 2015, 9:07 a.m. UTC | #3
On Thursday 23 July 2015 09:20 PM, Lee Jones wrote:
> On Tue, 21 Jul 2015, Vaibhav Hiremath wrote:
>
>> This patch adds mfd_cell/clk-subdevice for 88PM800 MFD
>> (and family of devices).
>>
>> Signed-off-by: Vaibhav Hiremath <vaibhav.hiremath@linaro.org>
>> ---
>>   drivers/mfd/88pm800.c | 25 +++++++++++++++++++++++++
>>   1 file changed, 25 insertions(+)
>>
>> diff --git a/drivers/mfd/88pm800.c b/drivers/mfd/88pm800.c
>> index f104a32..9723eac 100644
>> --- a/drivers/mfd/88pm800.c
>> +++ b/drivers/mfd/88pm800.c
>> @@ -173,6 +173,14 @@ static const struct mfd_cell regulator_devs[] = {
>>   	},
>>   };
>>
>> +static struct mfd_cell clk_devs[] = {
>> +	{
>> +	 .name = "88pm80x-clk",
>> +	 .of_compatible = "marvell,88pm800-clk",
>> +	 .id = -1,
>> +	},
>> +};
>
> Why does each device in 88pm800.c have it's own mfd_cell?
>

Probably, the author of the driver can comment on this. I have cc'ed
all of them.

But looking at the driver it looks like, except onkey and regulator all
other devices need per-initialization. For example,

in case of clock,

static int device_clk_init(struct pm80x_chip *chip)
{
         if (chip->type == CHIP_PM800)
                 clk_devs[0].name = "88pm800-clk";
         else if (chip->type == CHIP_PM860)
                 clk_devs[0].name = "88pm860-clk";

         return mfd_add_devices(chip->dev, 0, &clk_devs[0],
                               ARRAY_SIZE(clk_devs), NULL, 0, NULL);
}



> Take the opportunity to correct the tabbing in the remainder of the
> file.  Make that fix-up patch 1 of this set.  Then fixup this patch.
>

Ok, I will.

Thanks,
Vaibhav
diff mbox

Patch

diff --git a/drivers/mfd/88pm800.c b/drivers/mfd/88pm800.c
index f104a32..9723eac 100644
--- a/drivers/mfd/88pm800.c
+++ b/drivers/mfd/88pm800.c
@@ -173,6 +173,14 @@  static const struct mfd_cell regulator_devs[] = {
 	},
 };
 
+static struct mfd_cell clk_devs[] = {
+	{
+	 .name = "88pm80x-clk",
+	 .of_compatible = "marvell,88pm800-clk",
+	 .id = -1,
+	},
+};
+
 static const struct regmap_irq pm800_irqs[] = {
 	/* INT0 */
 	[PM800_IRQ_ONKEY] = {
@@ -344,6 +352,17 @@  static int device_regulator_init(struct pm80x_chip *chip)
 			      ARRAY_SIZE(regulator_devs), NULL, 0, NULL);
 }
 
+static int device_clk_init(struct pm80x_chip *chip)
+{
+	if (chip->type == CHIP_PM800)
+		clk_devs[0].name = "88pm800-clk";
+	else if (chip->type == CHIP_PM860)
+		clk_devs[0].name = "88pm860-clk";
+
+	return mfd_add_devices(chip->dev, 0, &clk_devs[0],
+			      ARRAY_SIZE(clk_devs), NULL, 0, NULL);
+}
+
 static int device_irq_init_800(struct pm80x_chip *chip)
 {
 	struct regmap *map = chip->regmap;
@@ -513,6 +532,12 @@  static int device_800_init(struct pm80x_chip *chip)
 		goto out;
 	}
 
+	ret = device_clk_init(chip);
+	if (ret) {
+		dev_err(chip->dev, "Failed to add clk subdev\n");
+		goto out;
+	}
+
 	return 0;
 out_dev:
 	mfd_remove_devices(chip->dev);