ec/google/chromeec: Add option to control reading long battery strings

Older ChromeOS devices (pre-CR50) do not support reading long battery
strings. This commit adds a Kconfig option,
EC_GOOGLE_CHROMEEC_READ_BATTERY_LONG_STRING, to enable or disable this
feature.

This allows devices with TPM_GOOGLE (CR50/TI50) to read and display
long battery strings, while older devices like google/link, wolf, samus,
and chell will continue to display only the first 8 characters.

This change ensures compatibility with older devices while enabling
the display of complete battery information on newer platforms.

BUG=b:366338622
TEST=Verified on google/tivviks_ufs:
     * Long battery string is displayed when
       EC_GOOGLE_CHROMEEC_READ_BATTERY_LONG_STRING is enabled.
     * Short battery string is displayed when
       EC_GOOGLE_CHROMEEC_READ_BATTERY_LONG_STRING=n.

Change-Id: I7859809278b7e926bbe8beb1a0a9e12c7e6c220d
Signed-off-by: Subrata Banik <subratabanik@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/84352
Reviewed-by: Matt DeVillier <matt.devillier@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Caveh Jalali <caveh@chromium.org>

0 files changed, 0 insertions, 0 deletions