fw_config.c

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/* SPDX-License-Identifier: GPL-2.0-only */
 
#include <bootstate.h>
#include <console/console.h>
#include <fw_config.h>
#include <gpio.h>
 
static const struct pad_config i2s_enable_pads[] = {
        /* Audio Codec INT N */
        PAD_CFG_GPI_APIC(GPP_H3, NONE, PLTRST, EDGE_BOTH, INVERT),
 
        /* I2S0_SCLK */
        PAD_CFG_NF(GPP_R0, NONE, DEEP, NF2),
        /* I2S0_SFRM */
        PAD_CFG_NF(GPP_R1, NONE, DEEP, NF2),
        /* I2S0_TXD */
        PAD_CFG_NF(GPP_R2, NONE, DEEP, NF2),
        /* I2S0_RXD */
        PAD_CFG_NF(GPP_R3, NONE, DEEP, NF2),
 
        /* I2S2_SCLK */
        PAD_CFG_NF(GPP_R4, NONE, DEEP, NF2),
        /* I2S2_SFRM */
        PAD_CFG_NF(GPP_R5, NONE, DEEP, NF2),
        /* I2S2_TXD */
        PAD_CFG_NF(GPP_R6, NONE, DEEP, NF2),
        /* I2S2_RXD */
        PAD_CFG_NF(GPP_R7, NONE, DEEP, NF2),
 
        /* I2S_MCLK1_OUT */
        PAD_CFG_NF(GPP_D19, NONE, DEEP, NF1),
};
 
static void fw_config_handle(void *unused)
{
        if (fw_config_probe(FW_CONFIG(AUDIO, ADL_MAX98373_ALC5682I_I2S))) {
                printk(BIOS_INFO, "Configure GPIOs for I2S audio.\n");
                gpio_configure_pads(i2s_enable_pads, ARRAY_SIZE(i2s_enable_pads));
        }
}
BOOT_STATE_INIT_ENTRY(BS_DEV_ENABLE, BS_ON_ENTRY, fw_config_handle, NULL);