[coreboot-gerrit] Change in coreboot[master]: drivers/i2c/tpm: Add irq_gpio support to tpm.
Justin TerAvest (Code Review)
gerrit at coreboot.org
Tue Jan 30 03:17:30 CET 2018
Justin TerAvest has uploaded this change for review. ( https://review.coreboot.org/23500
Change subject: drivers/i2c/tpm: Add irq_gpio support to tpm.
......................................................................
drivers/i2c/tpm: Add irq_gpio support to tpm.
Grunt (a amd-stoneyridge based platform) uses a GPIO to interface with
the tpm. This change allows devicetree entries to use a irq_gpio entry
to describe the interface with the TPM.
BUG=b:72655090
Change-Id: I08289891408d7176f68eb9c67f7a417a2448c2de
Signed-off-by: Justin TerAvest <teravest at chromium.org>
---
M src/drivers/i2c/tpm/chip.c
M src/drivers/i2c/tpm/chip.h
2 files changed, 6 insertions(+), 1 deletion(-)
git pull ssh://review.coreboot.org:29418/coreboot refs/changes/00/23500/1
diff --git a/src/drivers/i2c/tpm/chip.c b/src/drivers/i2c/tpm/chip.c
index 6d5c28a..2655b0d 100644
--- a/src/drivers/i2c/tpm/chip.c
+++ b/src/drivers/i2c/tpm/chip.c
@@ -55,7 +55,11 @@
acpigen_write_name("_CRS");
acpigen_write_resourcetemplate_header();
acpi_device_write_i2c(&i2c);
- acpi_device_write_interrupt(&config->irq);
+ if (config->irq_gpio.pin_count)
+ acpi_device_write_gpio(&config->irq_gpio);
+ else
+ acpi_device_write_interrupt(&config->irq);
+
acpigen_write_resourcetemplate_footer();
acpigen_pop_len(); /* Device */
diff --git a/src/drivers/i2c/tpm/chip.h b/src/drivers/i2c/tpm/chip.h
index 5abd3a9..149627f 100644
--- a/src/drivers/i2c/tpm/chip.h
+++ b/src/drivers/i2c/tpm/chip.h
@@ -7,4 +7,5 @@
unsigned int uid; /* ACPI _UID */
enum i2c_speed speed; /* Bus speed in Hz, default is I2C_SPEED_FAST */
struct acpi_irq irq; /* Interrupt */
+ struct acpi_gpio irq_gpio; /* GPIO interrupt */
};
--
To view, visit https://review.coreboot.org/23500
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Gerrit-Project: coreboot
Gerrit-Branch: master
Gerrit-MessageType: newchange
Gerrit-Change-Id: I08289891408d7176f68eb9c67f7a417a2448c2de
Gerrit-Change-Number: 23500
Gerrit-PatchSet: 1
Gerrit-Owner: Justin TerAvest <teravest at chromium.org>
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