linux-kernel - Re: [PATCH] mfd: arizona: Update device ordering to allow clean driver removal

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Date:	Mon, 25 Apr 2016 11:59:07 +0100
From:	Lee Jones <lee.jones@...aro.org>
To:	Charles Keepax <ckeepax@...nsource.wolfsonmicro.com>
Cc:	linux-kernel@...r.kernel.org, patches@...nsource.wolfsonmicro.com
Subject: Re: [PATCH] mfd: arizona: Update device ordering to allow clean
 driver removal

On Fri, 15 Apr 2016, Charles Keepax wrote:

> Since this commit:
> 
> commit b9a8a271c38f ("mfd: make mfd_remove_devices() iterate in reverse
> order")
> 
> The order in which the MFD children remove has been reversed, as our
> driver contains some dependencies between the devices we need to make
> some changes to ensure the driver unloads cleanly.
> 
> Signed-off-by: Charles Keepax <ckeepax@...nsource.wolfsonmicro.com>
> ---
>  drivers/mfd/arizona-core.c | 10 +++++-----
>  1 file changed, 5 insertions(+), 5 deletions(-)

Applied, thanks.

> diff --git a/drivers/mfd/arizona-core.c b/drivers/mfd/arizona-core.c
> index 5319f25..bf27179 100644
> --- a/drivers/mfd/arizona-core.c
> +++ b/drivers/mfd/arizona-core.c
> @@ -908,12 +908,12 @@ static const char * const wm5102_supplies[] = {
>  
>  static const struct mfd_cell wm5102_devs[] = {
>  	{ .name = "arizona-micsupp" },
> +	{ .name = "arizona-gpio" },
>  	{
>  		.name = "arizona-extcon",
>  		.parent_supplies = wm5102_supplies,
>  		.num_parent_supplies = 1, /* We only need MICVDD */
>  	},
> -	{ .name = "arizona-gpio" },
>  	{ .name = "arizona-haptics" },
>  	{ .name = "arizona-pwm" },
>  	{
> @@ -925,12 +925,12 @@ static const struct mfd_cell wm5102_devs[] = {
>  
>  static const struct mfd_cell wm5110_devs[] = {
>  	{ .name = "arizona-micsupp" },
> +	{ .name = "arizona-gpio" },
>  	{
>  		.name = "arizona-extcon",
>  		.parent_supplies = wm5102_supplies,
>  		.num_parent_supplies = 1, /* We only need MICVDD */
>  	},
> -	{ .name = "arizona-gpio" },
>  	{ .name = "arizona-haptics" },
>  	{ .name = "arizona-pwm" },
>  	{
> @@ -966,12 +966,12 @@ static const char * const wm8997_supplies[] = {
>  
>  static const struct mfd_cell wm8997_devs[] = {
>  	{ .name = "arizona-micsupp" },
> +	{ .name = "arizona-gpio" },
>  	{
>  		.name = "arizona-extcon",
>  		.parent_supplies = wm8997_supplies,
>  		.num_parent_supplies = 1, /* We only need MICVDD */
>  	},
> -	{ .name = "arizona-gpio" },
>  	{ .name = "arizona-haptics" },
>  	{ .name = "arizona-pwm" },
>  	{
> @@ -982,12 +982,13 @@ static const struct mfd_cell wm8997_devs[] = {
>  };
>  
>  static const struct mfd_cell wm8998_devs[] = {
> +	{ .name = "arizona-micsupp" },
> +	{ .name = "arizona-gpio" },
>  	{
>  		.name = "arizona-extcon",
>  		.parent_supplies = wm5102_supplies,
>  		.num_parent_supplies = 1, /* We only need MICVDD */
>  	},
> -	{ .name = "arizona-gpio" },
>  	{ .name = "arizona-haptics" },
>  	{ .name = "arizona-pwm" },
>  	{
> @@ -995,7 +996,6 @@ static const struct mfd_cell wm8998_devs[] = {
>  		.parent_supplies = wm5102_supplies,
>  		.num_parent_supplies = ARRAY_SIZE(wm5102_supplies),
>  	},
> -	{ .name = "arizona-micsupp" },
>  };
>  
>  int arizona_dev_init(struct arizona *arizona)

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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