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leds: Add SN3218 and SN3216 support to the IS31FL32XX driver 

Si-En Technology was acquired by ISSI in 2011, and it appears that
the IS31FL3218/IS31FL3216 are just rebranded SN3218/SN3216 devices.

Add the "si-en,sn3218" and "si-en,sn3216" compatible strings into the
IS31FL32XX driver as aliases for the issi equivalents, and update
binding documentation.

Datasheets:
    IS31FL3218: http://www.issi.com/WW/pdf/31FL3218.pdf
    SN3218:     http://www.si-en.com/uploadpdf/s2011517171720.pdf

    IS31FL3216: http://www.issi.com/WW/pdf/31FL3216.pdf
    SN3216:     http://www.si-en.com/uploadpdf/SN3216201152410148.pdf

Signed-off-by: David Rivshin <drivshin@allworx.com>
Acked-by: Rob Herring <robh@kernel.org>
Tested-by: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
This commit is contained in:
David Rivshin 2016-03-07 19:57:16 -05:00 committed by Jacek Anaszewski
parent 204a70bba9
commit e0442d7def
3 changed files with 14 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
Documentation/devicetree/bindings/leds/leds-is31fl32xx.txt
View File

@ -1,6 +1,6 @@
Binding for ISSI IS31FL32xx LED Drivers Binding for ISSI IS31FL32xx and Si-En SN32xx LED Drivers
The IS31FL32xx family of LED drivers are I2C devices with multiple The IS31FL32xx/SN32xx family of LED drivers are I2C devices with multiple
constant-current channels, each with independent 256-level PWM control. constant-current channels, each with independent 256-level PWM control.
Each LED is represented as a sub-node of the device. Each LED is represented as a sub-node of the device.
@ -10,6 +10,8 @@ Required properties:
issi,is31fl3235 issi,is31fl3235
issi,is31fl3218 issi,is31fl3218
issi,is31fl3216 issi,is31fl3216
si-en,sn3218
si-en,sn3216
- reg: I2C slave address - reg: I2C slave address
- address-cells : must be 1 - address-cells : must be 1
- size-cells : must be 0 - size-cells : must be 0
@ -45,5 +47,6 @@ is31fl3236: led-controller@3c {
}; };
}; };
For more product information please see the link below: For more product information please see the links below:
http://www.issi.com/US/product-analog-fxled-driver.shtml http://www.issi.com/US/product-analog-fxled-driver.shtml
http://www.si-en.com/product.asp?parentid=890

6
drivers/leds/Kconfig
View File

@ -572,9 +572,9 @@ config LEDS_IS31FL32XX
tristate "LED support for ISSI IS31FL32XX I2C LED controller family" tristate "LED support for ISSI IS31FL32XX I2C LED controller family"
depends on LEDS_CLASS && I2C && OF depends on LEDS_CLASS && I2C && OF
help help
Say Y here to include support for ISSI IS31FL32XX LED controllers. Say Y here to include support for ISSI IS31FL32XX and Si-En SN32xx
They are I2C devices with multiple constant-current channels, each LED controllers. They are I2C devices with multiple constant-current
with independent 256-level PWM control. channels, each with independent 256-level PWM control.
comment "LED driver for blink(1) USB RGB LED is under Special HID drivers (HID_THINGM)" comment "LED driver for blink(1) USB RGB LED is under Special HID drivers (HID_THINGM)"

6
drivers/leds/leds-is31fl32xx.c
View File

@ -8,7 +8,9 @@
* it under the terms of the GNU General Public License version 2 as * it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation. * published by the Free Software Foundation.
* *
* Datasheets: http://www.issi.com/US/product-analog-fxled-driver.shtml * Datasheets:
* http://www.issi.com/US/product-analog-fxled-driver.shtml
* http://www.si-en.com/product.asp?parentid=890
*/ */
#include <linux/device.h> #include <linux/device.h>
@ -424,7 +426,9 @@ static const struct of_device_id of_is31fl31xx_match[] = {
{ .compatible = "issi,is31fl3236", .data = &is31fl3236_cdef, }, { .compatible = "issi,is31fl3236", .data = &is31fl3236_cdef, },
{ .compatible = "issi,is31fl3235", .data = &is31fl3235_cdef, }, { .compatible = "issi,is31fl3235", .data = &is31fl3235_cdef, },
{ .compatible = "issi,is31fl3218", .data = &is31fl3218_cdef, }, { .compatible = "issi,is31fl3218", .data = &is31fl3218_cdef, },
{ .compatible = "si-en,sn3218", .data = &is31fl3218_cdef, },
{ .compatible = "issi,is31fl3216", .data = &is31fl3216_cdef, }, { .compatible = "issi,is31fl3216", .data = &is31fl3216_cdef, },
{ .compatible = "si-en,sn3216", .data = &is31fl3216_cdef, },
{}, {},
}; };