qcs405: Add support of GPIO IRQ APIs

Add support of GPIO IRQ APIs.

Change-Id: I11715a93999012622a5e28455731cbe249ba8f2c
Signed-off-by: Shefali Jain <shefjain@codeaurora.org>
Signed-off-by: Taniya Das <tdas@codeaurora.org>
Signed-off-by: Nitheesh Sekar <nsekar@codeaurora.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/32241
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>

1 files changed, 25 insertions, 0 deletions

diff --git a/src/soc/qualcomm/qcs405/gpio.c b/src/soc/qualcomm/qcs405/gpio.c
index 18aacf4ce4..7b2238d77f 100644
--- a/src/soc/qualcomm/qcs405/gpio.c
+++ b/src/soc/qualcomm/qcs405/gpio.c
@@ -71,3 +71,28 @@ void gpio_output(gpio_t gpio, int value)
 	gpio_configure(gpio, GPIO_FUNC_GPIO,
 				GPIO_NO_PULL, GPIO_2MA, GPIO_ENABLE);
 }
+
+void gpio_input_irq(gpio_t gpio, enum gpio_irq_type type, uint32_t pull)
+{
+	struct tlmm_gpio *regs = (void *)(uintptr_t)gpio.addr;
+
+	gpio_configure(gpio, GPIO_FUNC_GPIO,
+				pull, GPIO_2MA, GPIO_DISABLE);
+
+	clrsetbits_le32(&regs->intr_cfg, GPIO_INTR_DECT_CTL_MASK <<
+		GPIO_INTR_DECT_CTL_SHIFT, type << GPIO_INTR_DECT_CTL_SHIFT);
+	clrsetbits_le32(&regs->intr_cfg, GPIO_INTR_RAW_STATUS_ENABLE
+		<< GPIO_INTR_RAW_STATUS_EN_SHIFT, GPIO_INTR_RAW_STATUS_ENABLE
+		<< GPIO_INTR_RAW_STATUS_EN_SHIFT);
+}
+
+int gpio_irq_status(gpio_t gpio)
+{
+	struct tlmm_gpio *regs = (void *)(uintptr_t)gpio.addr;
+
+	if (!(read32(&regs->intr_status) & GPIO_INTR_STATUS_MASK))
+		return 0;
+
+	write32(&regs->intr_status, GPIO_INTR_STATUS_DISABLE);
+	return 1;
+}