From: Andrew Morton <akpm@linux-foundation.org>
To: "Kim, Milo" <Milo.Kim@ti.com>
Cc: Richard Purdie <rpurdie@rpsys.net>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Samuel Ortiz <sameo@linux.intel.com>,
Thierry Reding <thierry.reding@avionic-design.de>
Subject: Re: [PATCH v2 2/2] backlight: add new lp8788 backlight driver
Date: Fri, 21 Dec 2012 14:28:45 -0800 [thread overview]
Message-ID: <20121221142845.c5d6ebda.akpm@linux-foundation.org> (raw)
In-Reply-To: <A874F61F95741C4A9BA573A70FE3998F69E108D2@DQHE02.ent.ti.com>
On Fri, 21 Dec 2012 07:55:23 +0000
"Kim, Milo" <Milo.Kim@ti.com> wrote:
> TI LP8788 PMU supports regulators, battery charger, RTC, ADC, backlight driver
> and current sinks.
> This patch enables LP8788 backlight module.
>
> (Brightness mode)
> The brightness is controlled by PWM input or I2C register.
> All modes are supported in the driver.
>
> (Platform data)
> Configurable data can be defined in the platform side.
> name : backlight driver name. (default: "lcd-backlight")
> initial_brightness : initial value of backlight brightness
> bl_mode : brightness control by PWM or lp8788 register
> dim_mode : dimming mode selection
> full_scale : full scale current setting
> rise_time : brightness ramp up step time
> fall_time : brightness ramp down step time
> pwm_pol : PWM polarity setting when bl_mode is PWM based
> period_ns : platform specific PWM period value. unit is nano.
There's also
DEVICE_ATTR(bl_ctl_mode, S_IRUGO, lp8788_get_bl_ctl_mode, NULL);
which isn't documented anywhere?
next prev parent reply other threads:[~2012-12-21 22:28 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-12-21 7:55 [PATCH v2 2/2] backlight: add new lp8788 backlight driver Kim, Milo
2012-12-21 22:28 ` Andrew Morton [this message]
2013-01-03 8:08 ` Thierry Reding
2013-01-03 8:54 ` Kim, Milo
2013-01-03 9:05 ` Thierry Reding
2013-01-22 0:32 ` Samuel Ortiz
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