From b7d44dfcf59a6d09194f73dd37b79539be0c797a Mon Sep 17 00:00:00 2001 From: Sathyanarayana Nujella Date: Wed, 26 Oct 2016 17:35:39 -0700 Subject: mainboard/google/reef: Add proper DMIC endpoints based on DMIC config pin Reef board uses GPIO_17 as DMIC config pin. This pin distinguishes board with Quad DMIC's or Mono DMIC. This patch adds necessary DMIC endpoints to support either of those configurations. CQ-DEPEND=CL:*304339,CL:409774 BUG=chrome-os-partner:56918 BRANCH=none TEST=Verify Mono and Quad Channel DMIC record Change-Id: I5b2825b5f39f8962985a129f8ec65265fb18f0b2 Signed-off-by: Sathyanarayana Nujella Reviewed-on: https://review.coreboot.org/17158 Reviewed-by: Aaron Durbin Tested-by: build bot (Jenkins) --- src/mainboard/google/reef/Kconfig | 2 ++ .../reef/variants/baseboard/include/baseboard/gpio.h | 3 +++ src/mainboard/google/reef/variants/baseboard/nhlt.c | 16 +++++++++++++--- 3 files changed, 18 insertions(+), 3 deletions(-) (limited to 'src/mainboard') diff --git a/src/mainboard/google/reef/Kconfig b/src/mainboard/google/reef/Kconfig index 4e32b8614f..4d76f3838b 100644 --- a/src/mainboard/google/reef/Kconfig +++ b/src/mainboard/google/reef/Kconfig @@ -91,7 +91,9 @@ config UART_FOR_CONSOLE config INCLUDE_NHLT_BLOBS bool "Include blobs for audio." + select NHLT_DMIC_1CH_16B select NHLT_DMIC_2CH_16B + select NHLT_DMIC_4CH_16B select NHLT_DA7219 select NHLT_MAX98357 diff --git a/src/mainboard/google/reef/variants/baseboard/include/baseboard/gpio.h b/src/mainboard/google/reef/variants/baseboard/include/baseboard/gpio.h index f60bfdc6de..ca6aa31f34 100644 --- a/src/mainboard/google/reef/variants/baseboard/include/baseboard/gpio.h +++ b/src/mainboard/google/reef/variants/baseboard/include/baseboard/gpio.h @@ -45,4 +45,7 @@ #define MEM_CONFIG1 GPIO_102 #define MEM_CONFIG0 GPIO_101 +/* DMIC_CONFIG_PIN: High for 1-DMIC and low for 4-DMIC's */ +#define DMIC_CONFIG_PIN GPIO_17 + #endif /* BASEBOARD_GPIO_H */ diff --git a/src/mainboard/google/reef/variants/baseboard/nhlt.c b/src/mainboard/google/reef/variants/baseboard/nhlt.c index ef9ec6c9c5..86da039d68 100644 --- a/src/mainboard/google/reef/variants/baseboard/nhlt.c +++ b/src/mainboard/google/reef/variants/baseboard/nhlt.c @@ -17,13 +17,23 @@ #include #include #include +#include +#include void __attribute__((weak)) variant_nhlt_init(struct nhlt *nhlt) { - /* 2 Channel DMIC array. */ - if (!nhlt_soc_add_dmic_array(nhlt, 2)) - printk(BIOS_ERR, "Added 2CH DMIC array.\n"); + if (gpio_get(DMIC_CONFIG_PIN) == 1) { + /* 1-dmic configuration */ + if (!nhlt_soc_add_dmic_array(nhlt, 1)) + printk(BIOS_ERR, "Added 1CH DMIC array.\n"); + } else { + /* 4-dmic configuration */ + if (!nhlt_soc_add_dmic_array(nhlt, 2)) + printk(BIOS_ERR, "Added 2CH DMIC array.\n"); + if (!nhlt_soc_add_dmic_array(nhlt, 4)) + printk(BIOS_ERR, "Added 4CH DMIC array.\n"); + } /* Dialog for Headset codec. * Headset codec is bi-directional but uses the same configuration * settings for render and capture endpoints. -- cgit v1.2.3