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authorAaron Durbin <adurbin@chromium.org>2017-07-14 16:53:49 -0600
committerAaron Durbin <adurbin@chromium.org>2017-07-17 15:00:07 +0000
commitaa2504a10e1106368cf5ec2e54e0083ee62057fb (patch)
tree72a5e895fbe62a3d9712cf7595a5db1c2c8d8320 /src
parent2c628f1652fb0ca28a1fc6c43225475362b50fc7 (diff)
downloadcoreboot-aa2504a10e1106368cf5ec2e54e0083ee62057fb.tar.xz
soc/intel/common/gpio: distingiush single vs multi acpi devices
Sadly, small core and big core are not aligned with the OS driver's expectation on the number of ACPI devices used for each community. Big core uses a single device while small cores use one ACPI device per community. Allow for this distinction within the common gpio implementation and ensure apollolake is utilizing the new option to retain the correct behavior. Change-Id: I7c7535c36221139ad6c9adde2df10b80eb5c596a Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://review.coreboot.org/20588 Reviewed-by: Furquan Shaikh <furquan@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Subrata Banik <subrata.banik@intel.com>
Diffstat (limited to 'src')
-rw-r--r--src/soc/intel/apollolake/Kconfig1
-rw-r--r--src/soc/intel/common/block/gpio/Kconfig6
-rw-r--r--src/soc/intel/common/block/gpio/gpio.c7
3 files changed, 13 insertions, 1 deletions
diff --git a/src/soc/intel/apollolake/Kconfig b/src/soc/intel/apollolake/Kconfig
index 68291e5a28..fdbd6d7622 100644
--- a/src/soc/intel/apollolake/Kconfig
+++ b/src/soc/intel/apollolake/Kconfig
@@ -58,6 +58,7 @@ config CPU_SPECIFIC_OPTIONS
select SOC_INTEL_COMMON_BLOCK_CPU
select SOC_INTEL_COMMON_BLOCK_FAST_SPI
select SOC_INTEL_COMMON_BLOCK_GPIO
+ select SOC_INTEL_COMMON_BLOCK_GPIO_MULTI_ACPI_DEVICES
select SOC_INTEL_COMMON_BLOCK_GPIO_ITSS_POL_CFG
select SOC_INTEL_COMMON_BLOCK_GPIO_IOSTANDBY
select SOC_INTEL_COMMON_BLOCK_ITSS
diff --git a/src/soc/intel/common/block/gpio/Kconfig b/src/soc/intel/common/block/gpio/Kconfig
index bd2651f637..6d712e9585 100644
--- a/src/soc/intel/common/block/gpio/Kconfig
+++ b/src/soc/intel/common/block/gpio/Kconfig
@@ -34,3 +34,9 @@ config SOC_INTEL_COMMON_BLOCK_GPIO_LEGACY_MACROS
depends on SOC_INTEL_COMMON_BLOCK_GPIO
bool
default n
+
+# Indicate if multiple ACPI devices are used for each gpio community.
+config SOC_INTEL_COMMON_BLOCK_GPIO_MULTI_ACPI_DEVICES
+ depends on SOC_INTEL_COMMON_BLOCK_GPIO
+ bool
+ default n
diff --git a/src/soc/intel/common/block/gpio/gpio.c b/src/soc/intel/common/block/gpio/gpio.c
index 9b4f8f0247..58bc6d9a81 100644
--- a/src/soc/intel/common/block/gpio/gpio.c
+++ b/src/soc/intel/common/block/gpio/gpio.c
@@ -306,7 +306,12 @@ void gpio_set(gpio_t gpio_num, int value)
uint16_t gpio_acpi_pin(gpio_t gpio_num)
{
- const struct pad_community *comm = gpio_get_community(gpio_num);
+ const struct pad_community *comm;
+
+ if (!IS_ENABLED(CONFIG_SOC_INTEL_COMMON_BLOCK_GPIO_MULTI_ACPI_DEVICES))
+ return gpio_num;
+
+ comm = gpio_get_community(gpio_num);
return gpio_num - comm->first_pad;
}