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| author | Ayushee <ayushee.shah@intel.com> | 2019-04-05 11:39:51 -0700 |
|---|---|---|
| committer | chrome-bot <chrome-bot@chromium.org> | 2019-05-02 16:12:40 -0700 |
| commit | b7a7ad3ffc436fc074c79b62194c33980e746586 (patch) | |
| tree | 7332a81c666c66db9f6af9fc4422aae105c5f1b5 /include/config.h | |
| parent | 34366869bbab2e7c27a037b4c7d3c15ee5bf151a (diff) | |
| download | chrome-ec-b7a7ad3ffc436fc074c79b62194c33980e746586.tar.gz | |
driver/max695x: Add 7 segment display driver
Port80 information and power sequencing states can be displayed on the
7-segment so that we can observe its information without connecting a
debugger. Adding this CL to initialize and write to the 7-segment display.
For port80, 80(data) gets displayed on the seven segment, for the
power states, EC(state) gets displayed on the seven segment.
The MAX6958/MAX6959 is a compact multiplexed common - cathode display
designed to interface microprocessors with seven - segment numerical LED
digits or to discrete LEDs via a 2-wire serial interface compatible with
SMBusTM and I2C. The 2-wire serial interface uses fixed logic thresholds
of 0.8V/2.1V when the display driver is powered from a 5V supply for
compatibility with 2.5V and 3.3V systems.
BRANCH=None
BUG=b:130738086
TEST=Manually tested on intelrvp, able to write to the 7 segment display
Change-Id: I82ba3aca40640e094463669aa1ff106ce7b99b7b
Signed-off-by: Ayushee <ayushee.shah@intel.com>
Reviewed-on: https://chromium-review.googlesource.com/1574665
Commit-Ready: ChromeOS CL Exonerator Bot <chromiumos-cl-exonerator@appspot.gserviceaccount.com>
Tested-by: Ayushee Shah <ayushee.shah@intel.com>
Reviewed-by: Daisuke Nojiri <dnojiri@chromium.org>
Diffstat (limited to 'include/config.h')
| -rw-r--r-- | include/config.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/config.h b/include/config.h index 171938d9cc..30d3416da0 100644 --- a/include/config.h +++ b/include/config.h @@ -1120,6 +1120,7 @@ #undef CONFIG_CMD_RTC_ALARM #define CONFIG_CMD_RW #undef CONFIG_CMD_SCRATCHPAD +#undef CONFIG_CMD_SEVEN_SEG_DISPLAY #define CONFIG_CMD_SHMEM #undef CONFIG_CMD_SLEEP #define CONFIG_CMD_SLEEPMASK @@ -2650,6 +2651,9 @@ */ #define CONFIG_PORT80_PRINT_IN_INT 0 +/* MAX695x 7 segment driver */ +#undef CONFIG_MAX695X_SEVEN_SEGMENT_DISPLAY + /* Compile common code to support power button debouncing */ #undef CONFIG_POWER_BUTTON |