gpio.c

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/* SPDX-License-Identifier: GPL-2.0-only */
 
#include <baseboard/gpio.h>
#include <baseboard/variants.h>
#include <gpio.h>
#include <soc/gpio.h>
#include <ec/google/chromeec/ec.h>
 
enum {
        SKU_37_DROID = 37, /* LTE */
        SKU_38_DROID = 38, /* LTE + Touch */
        SKU_39_DROID = 39, /* LTE + KB backlight*/
        SKU_40_DROID = 40, /* LTE + Touch + KB backlight*/
};
 
static const struct pad_config default_override_table[] = {
        PAD_NC(GPIO_104, UP_20K),
 
        /* GPIO_137 -- HP_INT_ODL and would be amend by SSFC. */
        PAD_CFG_GPI_APIC_IOS(GPIO_137, NONE, DEEP, LEVEL, INVERT, HIZCRx1,
                                DISPUPD),
 
        /* EN_PP3300_TOUCHSCREEN */
        PAD_CFG_GPO_IOSSTATE_IOSTERM(GPIO_146, 0, DEEP, NONE, Tx0RxDCRx0,
                                     DISPUPD),
 
        PAD_NC(GPIO_213, DN_20K),
};
 
static const struct pad_config lte_override_table[] = {
        /* Default override table. */
        PAD_NC(GPIO_104, UP_20K),
 
        /* GPIO_137 -- HP_INT_ODL and would be amend by SSFC. */
        PAD_CFG_GPI_APIC_IOS(GPIO_137, NONE, DEEP, LEVEL, INVERT, HIZCRx1,
                                DISPUPD),
 
        /* EN_PP3300_TOUCHSCREEN */
        PAD_CFG_GPO_IOSSTATE_IOSTERM(GPIO_146, 0, DEEP, NONE, Tx0RxDCRx0,
                                     DISPUPD),
 
        PAD_NC(GPIO_213, DN_20K),
 
        /* Be specific to LTE SKU */
        /* UART2-CTS_B -- EN_PP3300_DX_LTE_SOC */
        PAD_CFG_GPO(GPIO_67, 1, PWROK),
 
        /* PCIE_WAKE1_B -- FULL_CARD_POWER_OFF */
        PAD_CFG_GPO(GPIO_117, 1, PWROK),
 
        /* AVS_I2S1_MCLK -- PLT_RST_LTE_L */
        PAD_CFG_GPO(GPIO_161, 1, DEEP),
};
 
const struct pad_config *variant_override_gpio_table(size_t *num)
{
        uint32_t sku_id;
        sku_id = google_chromeec_get_board_sku();
 
        switch (sku_id) {
        case SKU_37_DROID:
        case SKU_38_DROID:
        case SKU_39_DROID:
        case SKU_40_DROID:
                *num = ARRAY_SIZE(lte_override_table);
                return lte_override_table;
        default:
                *num = ARRAY_SIZE(default_override_table);
                return default_override_table;
        }
}
 
static const struct pad_config lte_early_override_table[] = {
        /* UART2-CTS_B -- EN_PP3300_DX_LTE_SOC */
        PAD_CFG_GPO(GPIO_67, 1, PWROK),
 
        /* PCIE_WAKE1_B -- FULL_CARD_POWER_OFF */
        PAD_CFG_GPO(GPIO_117, 1, PWROK),
 
        /* AVS_I2S1_MCLK -- PLT_RST_LTE_L */
        PAD_CFG_GPO(GPIO_161, 0, DEEP),
};
 
const struct pad_config *variant_early_override_gpio_table(size_t *num)
{
        *num = ARRAY_SIZE(lte_early_override_table);
 
        return lte_early_override_table;
}