soc/amd: remove special GPIO_2 override soc_gpio_hook

This override was added to have the SCI mapping configured if GPIO was
used as WAKE_L pin. This however didn't set up the SCI level and trigger
information, so it likely never worked as intended.

Change-Id: I44661f05c8f517ece88714c625603579731d174b
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/43049
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>

src/soc/amd/cezanne/gpio.c

@@ -1,10 +1,7 @@
 /* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <amdblocks/gpio_banks.h>
-#include <amdblocks/acpimmio.h>
-#include <amdblocks/smi.h>
 #include <soc/gpio.h>
-#include <soc/smi.h>
 #include <types.h>
 
 /* see the IOMUX function table for the mapping from GPIO number to GEVENT number */
@@ -40,10 +37,3 @@ void soc_get_gpio_event_table(const struct soc_amd_event **table, size_t *items)
 	*table = gpio_event_table;
 	*items = ARRAY_SIZE(gpio_event_table);
 }
-
-void soc_gpio_hook(uint8_t gpio, uint8_t mux)
-{
-	/* Always program Gevent when WAKE_L_AGPIO2 is configured as WAKE_L */
-	if ((gpio == 2) && !(mux & AMD_GPIO_MUX_MASK))
-		soc_route_sci(GPIO_2_EVENT);
-}

src/soc/amd/common/block/gpio_banks/gpio.c

@@ -179,8 +179,6 @@ uint16_t gpio_acpi_pin(gpio_t gpio)
 	return gpio;
 }
 
-__weak void soc_gpio_hook(uint8_t gpio, uint8_t mux) {}
-
 static void set_single_gpio(const struct soc_amd_gpio *g,
 			    struct sci_trigger_regs *sci_trigger_cfg)
 {
@@ -193,8 +191,6 @@ static void set_single_gpio(const struct soc_amd_gpio *g,
 	iomux_write8(g->gpio, g->function & AMD_GPIO_MUX_MASK);
 	iomux_read8(g->gpio); /* Flush posted write */
 
-	soc_gpio_hook(g->gpio, g->function);
-
 	gpio_setbits32(g->gpio, PAD_CFG_MASK, g->control);
 	/* Clear interrupt and wake status (write 1-to-clear bits) */
 	gpio_or32(g->gpio, GPIO_INT_STATUS | GPIO_WAKE_STATUS);

src/soc/amd/common/block/include/amdblocks/gpio_banks.h

@@ -85,7 +85,5 @@ void program_gpios(const struct soc_amd_gpio *gpio_list_ptr, size_t size);
 int gpio_interrupt_status(gpio_t gpio);
 /* Implemented by soc, provides table of available GPIO mapping to Gevents */
 void soc_get_gpio_event_table(const struct soc_amd_event **table, size_t *items);
-/* May be implemented by soc to handle special cases */
-void soc_gpio_hook(uint8_t gpio, uint8_t mux);
 
 #endif /* AMD_BLOCK_GPIO_BANKS_H */

src/soc/amd/picasso/gpio.c

@@ -1,10 +1,7 @@
 /* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <amdblocks/gpio_banks.h>
-#include <amdblocks/acpimmio.h>
-#include <amdblocks/smi.h>
 #include <soc/gpio.h>
-#include <soc/smi.h>
 #include <types.h>
 
 static const struct soc_amd_event gpio_event_table[] = {
@@ -39,10 +36,3 @@ void soc_get_gpio_event_table(const struct soc_amd_event **table, size_t *items)
 	*table = gpio_event_table;
 	*items = ARRAY_SIZE(gpio_event_table);
 }
-
-void soc_gpio_hook(uint8_t gpio, uint8_t mux)
-{
-	/* Always program Gevent when WAKE_L_AGPIO2 is configured as WAKE_L */
-	if ((gpio == 2) && !(mux & AMD_GPIO_MUX_MASK))
-		soc_route_sci(GPIO_2_EVENT);
-}

src/soc/amd/stoneyridge/gpio.c

@@ -1,10 +1,7 @@
 /* SPDX-License-Identifier: GPL-2.0-only */
 
 #include <amdblocks/gpio_banks.h>
-#include <amdblocks/acpimmio.h>
-#include <amdblocks/smi.h>
 #include <soc/gpio.h>
-#include <soc/smi.h>
 #include <types.h>
 
 static const struct soc_amd_event gpio_event_table[] = {
@@ -39,10 +36,3 @@ void soc_get_gpio_event_table(const struct soc_amd_event **table, size_t *items)
 	*table = gpio_event_table;
 	*items = ARRAY_SIZE(gpio_event_table);
 }
-
-void soc_gpio_hook(uint8_t gpio, uint8_t mux)
-{
-	/* Always program Gevent when WAKE_L_AGPIO2 is configured as WAKE_L */
-	if ((gpio == 2) && !(mux & AMD_GPIO_MUX_MASK))
-		soc_route_sci(GPIO_2_EVENT);
-}