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mb/google/poppy/var/nami: Fix stylus runtime detection 

Stylus reset GPIO needs to be held low in romstage, released
in ramstage for runtime i2c detection to pick it up.

TEST=build/boot AKALI360 variant, verify stylus detected in cbmem,
functional in OS.

Change-Id: I2e7f2a28f6b3a71b0c8fc367168cffbe3f064663
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/74234
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Sean Rhodes <sean@starlabs.systems>
This commit is contained in:
Matt DeVillier 2023-03-06 21:41:44 -06:00
parent e22ab053d3
commit 183d90e847
1 changed files with 4 additions and 1 deletions
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5
src/mainboard/google/poppy/variants/nami/gpio.c
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@ -153,7 +153,7 @@ static const struct pad_config gpio_table[] = {
/* D2 : SPI1_MISO ==> PEN_PDCT# */
PAD_CFG_GPI_APIC_HIGH(GPP_D2, NONE, PLTRST),
/* D3 : SPI1_MOSI ==> PEN_RST# */
PAD_CFG_GPO(GPP_D3, 0, DEEP),
PAD_CFG_GPO(GPP_D3, 1, DEEP),
/* D4 : FASHTRIG ==> NC */
PAD_NC(GPP_D4, NONE),
/* D5 : ISH_I2C0_SDA ==> NC */
@ -486,6 +486,9 @@ static const struct pad_config romstage_gpio_table[] = {
PAD_CFG_GPO(GPP_B4, 1, DEEP),
/* B3 : CPU_GP2 ==> TOUCHSCREEN_RST# */
PAD_CFG_GPO(GPP_B3, 0, DEEP),
/* D3 : SPI1_MOSI ==> PEN_RST# */
PAD_CFG_GPO(GPP_D3, 0, DEEP),
};
const struct pad_config *variant_romstage_gpio_table(size_t *num)