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mb/system76/lemp9: gpio: add a pull-down for MODEM_CLKREQ / CNVI_CLKREQ 

MODEM_CLKREQ / CNVI_CLKREQ has no external pull-down resistor.
When there is no M.2 card populated, the pin is floating. Thus
enable an internal 20K PD.

Signed-off-by: Michael Niewöhner <foss@mniewoehner.de>
Change-Id: I37e0a9d7e9e0a8c8a7ac198abfd3995b8b0f9e3e
Reviewed-on: https://review.coreboot.org/c/coreboot/+/43651
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by:  Felix Singer <felixsinger@posteo.net>
This commit is contained in:
Michael Niewöhner 2020-07-20 23:27:27 +02:00 committed by Michael Niewöhner
parent 8e2101d438
commit 1c97793b79
1 changed files with 1 additions and 1 deletions
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src/mainboard/system76/lemp9/gpio.h
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@ -467,7 +467,7 @@ static const struct pad_config gpio_table[] = {
// CNV_RF_RESET# / CNVI_RST#
PAD_CFG_NF(GPP_H1, NONE, DEEP, NF3),
// MODEM_CLKREQ / CNVI_CLKREQ
PAD_CFG_NF(GPP_H2, NONE, DEEP, NF3),
PAD_CFG_NF(GPP_H2, DN_20K, DEEP, NF3),
// NC
PAD_NC(GPP_H3, UP_20K),