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authorDaniel Kurtz <djkurtz@chromium.org>2018-07-23 17:26:59 -0600
committerPatrick Georgi <pgeorgi@google.com>2018-07-30 18:45:44 +0000
commitcd62cac9e1f76d4086dc757701ad724a79654b1b (patch)
treeeb59635226f0dd711ec973cd7700b480506152eb /src/drivers/i2c
parent791ba97d1d1f5923303f159ac0da154e082a12f2 (diff)
downloadcoreboot-cd62cac9e1f76d4086dc757701ad724a79654b1b.tar.xz
drivers/i2c/da7219: Allow disabling micbias-pulse feature
These two da7219_aad properties are optional: - dlg,micbias-pulse-lvl : Mic bias higher voltage pulse level (mV). [<2800>, <2900>] - dlg,micbias-pulse-time : Mic bias higher voltage pulse duration (ms) When the Mic Bias Higher Voltage feature is not required, firmware should just not provide the dlg,micbias-pulse-lvl and dlg,micbias-pulse-time properties. Signed-off-by: Daniel Kurtz <djkurtz@chromium.org> BUG=b:111700809 TEST=On grunt: No "Invalid micbias pulse level" in dmesg Change-Id: Ie99a8962e78c68b3f6927d0de34168f265d4efa9 Reviewed-on: https://review.coreboot.org/27613 Reviewed-by: Furquan Shaikh <furquan@google.com> Reviewed-by: Akshu Agrawal <akshu.agrawal@amd.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/drivers/i2c')
-rw-r--r--src/drivers/i2c/da7219/da7219.c10
1 files changed, 6 insertions, 4 deletions
diff --git a/src/drivers/i2c/da7219/da7219.c b/src/drivers/i2c/da7219/da7219.c
index b8af689312..43e6076b73 100644
--- a/src/drivers/i2c/da7219/da7219.c
+++ b/src/drivers/i2c/da7219/da7219.c
@@ -77,10 +77,12 @@ static void da7219_fill_ssdt(struct device *dev)
acpi_dp_add_integer(aad, "dlg,c-mic-btn-thr", config->c_mic_btn_thr);
acpi_dp_add_integer(aad, "dlg,btn-avg", config->btn_avg);
acpi_dp_add_integer(aad, "dlg,adc-1bit-rpt", config->adc_1bit_rpt);
- acpi_dp_add_integer(aad, "dlg,micbias-pulse-lvl",
- config->micbias_pulse_lvl);
- acpi_dp_add_integer(aad, "dlg,micbias-pulse-time",
- config->micbias_pulse_time);
+ if (config->micbias_pulse_lvl > 0) {
+ acpi_dp_add_integer(aad, "dlg,micbias-pulse-lvl",
+ config->micbias_pulse_lvl);
+ acpi_dp_add_integer(aad, "dlg,micbias-pulse-time",
+ config->micbias_pulse_time);
+ }
/* DA7219 Properties */
dsd = acpi_dp_new_table("_DSD");