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| software:driver:linux:adp5520 [27 Sep 2010 17:00] – make files links to kernel.org hennerich | resources:tools-software:linux-drivers:multifunction-device:adp5520 [03 Jan 2013 20:42] – external edit | ||
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| Line 1: | Line 1: | ||
| - | ====== | + | ====== |
| - | ===== Status | + | ===== Supported Devices |
| - | + | ||
| - | ^ Source | + | |
| - | | [[bf> | + | |
| - | + | ||
| - | ===== Files ===== | + | |
| - | + | ||
| - | ^ Function ^ File ^ | + | |
| - | | MFD-CORE | [[http:// | + | |
| - | | include | [[http:// | + | |
| - | | BACKLIGHT | [[http:// | + | |
| - | | LED | [[http:// | + | |
| - | | GPIO | [[http:// | + | |
| - | | KEYPAD | [[http:// | + | |
| + | * [[adi> | ||
| + | * [[adi> | ||
| - | ====== Driver Overview ====== | + | ===== Evaluation Boards |
| - | More information on the:\\ | + | |
| - | | + | ===== Description ===== |
| - | * ADP5501 can be found here [[: | + | |
| - | The ADP5520/01 utilizes several Linux device-driver subsystems and provides | + | The ADP5520/ |
| various software interfaces. It is therefore implemented as a multifunction device (MFD). | various software interfaces. It is therefore implemented as a multifunction device (MFD). | ||
| In this particular case the ADP5520 backlight driver and I/O expander, concurrently | In this particular case the ADP5520 backlight driver and I/O expander, concurrently | ||
| leverages the Linux backlight, LED, GPIO, and input subsystems for its keypad functionality. | leverages the Linux backlight, LED, GPIO, and input subsystems for its keypad functionality. | ||
| - | < | + | < |
| digraph { | digraph { | ||
| + | | ||
| | | ||
| | | ||
| Line 90: | Line 79: | ||
| * Configurable number of dedicated GPIOs, up to 8 GPIOs | * Configurable number of dedicated GPIOs, up to 8 GPIOs | ||
| * Configurable Pull-Ups | * Configurable Pull-Ups | ||
| + | |||
| + | |||
| + | |||
| + | ====== Source Code ====== | ||
| + | |||
| + | ===== Status ===== | ||
| + | |||
| + | ^ Source | ||
| + | | [[git.linux.org> | ||
| + | |||
| + | |||
| + | ===== Files ===== | ||
| + | |||
| + | ^ Function ^ File ^ | ||
| + | | MFD-CORE | ||
| + | | include | ||
| + | | BACKLIGHT | [[git.linux.org> | ||
| + | | LED | [[git.linux.org> | ||
| + | | GPIO | [[git.linux.org> | ||
| + | | KEYPAD | ||
| ====== Example platform device initialization ====== | ====== Example platform device initialization ====== | ||
| - | <note important> | + | {{page> |
| + | |||
| + | <WRAP important> | ||
| Since Keypad, GPIO and optional LEDs (2, 3) are multiplexed, | Since Keypad, GPIO and optional LEDs (2, 3) are multiplexed, | ||
| - | </note> | + | </WRAP> |
| ^ ADP5520 PIN ^ R3 ^ R2 ^ R1 ^ R0 ^ C0 ^ C1 ^ C2 ^ C3 ^ | ^ ADP5520 PIN ^ R3 ^ R2 ^ R1 ^ R0 ^ C0 ^ C1 ^ C2 ^ C3 ^ | ||
| Line 102: | Line 113: | ||
| | **LED** | LED3 | | | | | | | LED2 | | | **LED** | LED3 | | | | | | | LED2 | | ||
| - | <note tip> | + | <WRAP tip> |
| - | Please refer to include/ | + | Please refer to [[git.linux.org> |
| - | </note> | + | </WRAP> |
| - | + | ||
| - | <source trunk/ | + | |
| ==== Backlight ===== | ==== Backlight ===== | ||
| Line 129: | Line 138: | ||
| ==== ADP5520/ | ==== ADP5520/ | ||
| + | |||
| + | {{page> | ||
| <source trunk/ | <source trunk/ | ||
| <source trunk/ | <source trunk/ | ||
| - | <note tip> | + | <WRAP tip> |
| **ADP5520 IRQ Usage:**\\ | **ADP5520 IRQ Usage:**\\ | ||
| If you aren’t planning to utilize the Keypad interface, you don’t need to specify an IRQ in bfin_i2c_board_info. | If you aren’t planning to utilize the Keypad interface, you don’t need to specify an IRQ in bfin_i2c_board_info. | ||
| - | </note> | + | </WRAP> |
| ====== Adding Linux driver support ====== | ====== Adding Linux driver support ====== | ||
| Line 199: | Line 210: | ||
| ====== Hardware configuration ====== | ====== Hardware configuration ====== | ||
| + | |||
| + | {{: | ||
| There is no dedicated Blackfin STAMP evaluation board for the ADP5520. | There is no dedicated Blackfin STAMP evaluation board for the ADP5520. | ||
| During test and driver development we used the ADP5520 Demo Mother/ | During test and driver development we used the ADP5520 Demo Mother/ | ||
| + | Connect the ADP5520 Demo Mother to an USB port. | ||
| It can be easily wired to the Blackfin STAMP TWI/I2C header. | It can be easily wired to the Blackfin STAMP TWI/I2C header. | ||
| Line 207: | Line 221: | ||
| ^ BF537-STAMP (P10) TWI/I2C header | ^ BF537-STAMP (P10) TWI/I2C header | ||
| ^ PIN ^ Function ^ PIN/ | ^ PIN ^ Function ^ PIN/ | ||
| - | | 2 | (+3.3V) | VCC | | ||
| | 5 | SCL | SCL | | | 5 | SCL | SCL | | ||
| | 6 | SDA| SDA | | | 6 | SDA| SDA | | ||
| Line 243: | Line 256: | ||
| root:/ | root:/ | ||
| </ | </ | ||
| + | |||
| + | __**For more information on Backlight handling in Linux read:**__ [[git.linux.org> | ||
| ==== LED ===== | ==== LED ===== | ||
| Line 270: | Line 285: | ||
| root:/> | root:/> | ||
| </ | </ | ||
| + | |||
| + | __**For more information on LEDs handling in Linux read:**__ [[git.linux.org> | ||
| ==== GPIO ===== | ==== GPIO ===== | ||
| Line 290: | Line 307: | ||
| [*] Input event device test | [*] Input event device test | ||
| </ | </ | ||
| + | |||
| + | __**For more information on GPIO handling in Linux read:**__ [[git.linux.org> | ||
| + | |||
| ==== Keypad ===== | ==== Keypad ===== | ||
| Line 338: | Line 358: | ||
| root:/> | root:/> | ||
| </ | </ | ||
| + | |||
| + | __**For more information on Input handling in Linux read:**__ [[git.linux.org> | ||
| + | |||
| + | ====== More Information ====== | ||
| + | |||
| + | {{page> | ||
| + | |||
resources/tools-software/linux-drivers/multifunction-device/adp5520.txt · Last modified: 16 Feb 2015 11:50 by Lars-Peter Clausen