linux-kernel - Re: [PATCH RESEND 3/5] mfd: arizona: Add register bits for general purpose switch

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20150812082328.GZ18282@x1>
Date:	Wed, 12 Aug 2015 09:23:28 +0100
From:	Lee Jones <lee.jones@...aro.org>
To:	Charles Keepax <ckeepax@...nsource.wolfsonmicro.com>
Cc:	cw00.choi@...sung.com, patches@...nsource.wolfsonmicro.com,
	devicetree@...r.kernel.org, myungjoo.ham@...sung.com,
	sameo@...ux.intel.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH RESEND 3/5] mfd: arizona: Add register bits for general
 purpose switch

On Tue, 11 Aug 2015, Charles Keepax wrote:

> The switch is typically used in conjunction with the MICDET clamp in
> order to suppress pops and clicks associated with jack insertion.
> 
> Signed-off-by: Charles Keepax <ckeepax@...nsource.wolfsonmicro.com>
> ---
>  drivers/mfd/wm5110-tables.c           |    2 ++
>  include/linux/mfd/arizona/pdata.h     |    3 +++
>  include/linux/mfd/arizona/registers.h |    8 ++++++++
>  3 files changed, 13 insertions(+), 0 deletions(-)

Acked-by: Lee Jones <lee.jones@...aro.org>

> diff --git a/drivers/mfd/wm5110-tables.c b/drivers/mfd/wm5110-tables.c
> index dd27872..acb3bb2 100644
> --- a/drivers/mfd/wm5110-tables.c
> +++ b/drivers/mfd/wm5110-tables.c
> @@ -1472,6 +1472,7 @@ static const struct reg_default wm5110_reg_default[] = {
>  	{ 0x00000C04, 0xA101 },    /* R3076  - GPIO5 CTRL */
>  	{ 0x00000C0F, 0x0400 },    /* R3087  - IRQ CTRL 1 */
>  	{ 0x00000C10, 0x1000 },    /* R3088  - GPIO Debounce Config */
> +	{ 0x00000C18, 0x0000 },    /* R3096  - GP Switch 1 */
>  	{ 0x00000C20, 0x8002 },    /* R3104  - Misc Pad Ctrl 1 */
>  	{ 0x00000C21, 0x8001 },    /* R3105  - Misc Pad Ctrl 2 */
>  	{ 0x00000C22, 0x0000 },    /* R3106  - Misc Pad Ctrl 3 */
> @@ -2524,6 +2525,7 @@ static bool wm5110_readable_register(struct device *dev, unsigned int reg)
>  	case ARIZONA_GPIO5_CTRL:
>  	case ARIZONA_IRQ_CTRL_1:
>  	case ARIZONA_GPIO_DEBOUNCE_CONFIG:
> +	case ARIZONA_GP_SWITCH_1:
>  	case ARIZONA_MISC_PAD_CTRL_1:
>  	case ARIZONA_MISC_PAD_CTRL_2:
>  	case ARIZONA_MISC_PAD_CTRL_3:
> diff --git a/include/linux/mfd/arizona/pdata.h b/include/linux/mfd/arizona/pdata.h
> index f030a32..e76577b 100644
> --- a/include/linux/mfd/arizona/pdata.h
> +++ b/include/linux/mfd/arizona/pdata.h
> @@ -182,6 +182,9 @@ struct arizona_pdata {
>  
>  	/** GPIO for primary IRQ (used for edge triggered emulation) */
>  	int irq_gpio;
> +
> +	/** General purpose switch control */
> +	unsigned int gpsw;
>  };
>  
>  #endif
> diff --git a/include/linux/mfd/arizona/registers.h b/include/linux/mfd/arizona/registers.h
> index 3f3bb2b..e96644c 100644
> --- a/include/linux/mfd/arizona/registers.h
> +++ b/include/linux/mfd/arizona/registers.h
> @@ -869,6 +869,7 @@
>  #define ARIZONA_GPIO5_CTRL                       0xC04
>  #define ARIZONA_IRQ_CTRL_1                       0xC0F
>  #define ARIZONA_GPIO_DEBOUNCE_CONFIG             0xC10
> +#define ARIZONA_GP_SWITCH_1                      0xC18
>  #define ARIZONA_MISC_PAD_CTRL_1                  0xC20
>  #define ARIZONA_MISC_PAD_CTRL_2                  0xC21
>  #define ARIZONA_MISC_PAD_CTRL_3                  0xC22
> @@ -4573,6 +4574,13 @@
>  #define ARIZONA_GP_DBTIME_WIDTH                       4  /* GP_DBTIME - [15:12] */
>  
>  /*
> + * R3096 (0xC18) - GP Switch 1
> + */
> +#define ARIZONA_SW1_MODE_MASK                    0x0003  /* SW1_MODE - [1:0] */
> +#define ARIZONA_SW1_MODE_SHIFT                        0  /* SW1_MODE - [1:0] */
> +#define ARIZONA_SW1_MODE_WIDTH                        2  /* SW1_MODE - [1:0] */
> +
> +/*
>   * R3104 (0xC20) - Misc Pad Ctrl 1
>   */
>  #define ARIZONA_LDO1ENA_PD                       0x8000  /* LDO1ENA_PD */

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/