mb/google/octopus: Clean up LTE power off function

All octopus board share the same power off sequence.
Move to smihandler.c instead variant.c.

BUG=b:168075958
BRANCH=octopus
TEST=build image and verify on the DUT with LTE DB.

Signed-off-by: Eric Lai <ericr_lai@compal.corp-partner.google.com>
Change-Id: I2be5a656fb42fff99c56d21aaa73ed9140caad37
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45436
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/mainboard/google/octopus/smihandler.c

@@ -3,15 +3,22 @@
 #include <acpi/acpi.h>
 #include <baseboard/variants.h>
 #include <cpu/x86/smm.h>
+#include <delay.h>
 #include <ec/google/chromeec/ec.h>
 #include <ec/google/chromeec/smm.h>
 #include <elog.h>
+#include <gpio.h>
 #include <intelblocks/smihandler.h>
 #include <soc/pm.h>
 #include <soc/gpio.h>
 #include <variant/ec.h>
 #include <variant/gpio.h>
 
+struct gpio_with_delay {
+	gpio_t gpio;
+	unsigned int delay_msecs;
+};
+
 void mainboard_smi_gpi_handler(const struct gpi_status *sts)
 {
 	if (gpi_status_get(sts, EC_SMI_GPI))
@@ -54,3 +61,27 @@ void __weak variant_smi_sleep(u8 slp_typ)
 {
 	/* Leave for the variant to implement if necessary. */
 }
+
+void power_off_lte_module(void)
+{
+
+	const struct gpio_with_delay lte_power_off_gpios[] = {
+		{
+			GPIO_161, /* AVS_I2S1_MCLK -- PLT_RST_LTE_L */
+			30,
+		},
+		{
+			GPIO_117, /* PCIE_WAKE1_B -- FULL_CARD_POWER_OFF */
+			100
+		},
+		{
+			GPIO_67, /* UART2-CTS_B -- EN_PP3300_DX_LTE_SOC */
+			0
+		}
+	};
+
+	for (int i = 0; i < ARRAY_SIZE(lte_power_off_gpios); i++) {
+		gpio_output(lte_power_off_gpios[i].gpio, 0);
+		mdelay(lte_power_off_gpios[i].delay_msecs);
+	}
+}

src/mainboard/google/octopus/variants/baseboard/include/baseboard/variants.h

@@ -50,4 +50,8 @@ bool no_touchscreen_sku(uint32_t sku_id);
 /* allow each variants to customize smi sleep flow. */
 void variant_smi_sleep(u8 slp_typ);
 
+/* LTE power off sequence:
+ * GPIO_161 -> 30ms -> GPIO_117 -> 100ms -> GPIO_67 */
+void power_off_lte_module(void);
+
 #endif /* BASEBOARD_VARIANTS_H */

src/mainboard/google/octopus/variants/bobba/variant.c

@@ -16,34 +16,6 @@ enum {
 	SKU_40_DROID = 40, /* LTE + Touch + KB backlight*/
 };
 
-struct gpio_with_delay {
-	gpio_t gpio;
-	unsigned int delay_msecs;
-};
-
-static void power_off_lte_module(u8 slp_typ)
-{
-	const struct gpio_with_delay lte_power_off_gpios[] = {
-		{
-			GPIO_161, /* AVS_I2S1_MCLK -- PLT_RST_LTE_L */
-			30,
-		},
-		{
-			GPIO_117, /* PCIE_WAKE1_B -- FULL_CARD_POWER_OFF */
-			100
-		},
-		{
-			GPIO_67, /* UART2-CTS_B -- EN_PP3300_DX_LTE_SOC */
-			0
-		}
-	};
-
-	for (int i = 0; i < ARRAY_SIZE(lte_power_off_gpios); i++) {
-		gpio_output(lte_power_off_gpios[i].gpio, 0);
-		mdelay(lte_power_off_gpios[i].delay_msecs);
-	}
-}
-
 const char *get_wifi_sar_cbfs_filename(void)
 {
 	const char *filename = NULL;
@@ -68,7 +40,7 @@ void variant_smi_sleep(u8 slp_typ)
 	case SKU_38_DROID:
 	case SKU_39_DROID:
 	case SKU_40_DROID:
-		power_off_lte_module(slp_typ);
+		power_off_lte_module();
 		return;
 	default:
 		return;

src/mainboard/google/octopus/variants/dood/variant.c

@@ -16,35 +16,6 @@ enum {
 	SKU_4_WIFI_2CAM = 4, /* Wifi + dual camera */
 };
 
-struct gpio_with_delay {
-	gpio_t gpio;
-	unsigned int delay_msecs;
-};
-
-static void power_off_lte_module(u8 slp_typ)
-{
-	const struct gpio_with_delay lte_power_off_gpios[] = {
-		{
-			GPIO_161, /* AVS_I2S1_MCLK -- PLT_RST_LTE_L */
-			30,
-		},
-		{
-			GPIO_117, /* PCIE_WAKE1_B -- FULL_CARD_POWER_OFF */
-			100
-		},
-		{
-			GPIO_67, /* UART2-CTS_B -- EN_PP3300_DX_LTE_SOC */
-			0
-		}
-	};
-
-	for (int i = 0; i < ARRAY_SIZE(lte_power_off_gpios); i++) {
-		gpio_output(lte_power_off_gpios[i].gpio, 0);
-		mdelay(lte_power_off_gpios[i].delay_msecs);
-	}
-}
-
-
 void variant_smi_sleep(u8 slp_typ)
 {
 	/* Currently use cases here all target to S5 therefore we do early return
@@ -55,7 +26,7 @@ void variant_smi_sleep(u8 slp_typ)
 	switch (google_chromeec_get_board_sku()) {
 	case SKU_1_LTE:
 	case SKU_3_LTE_2CAM:
-		power_off_lte_module(slp_typ);
+		power_off_lte_module();
 		return;
 	default:
 		return;

src/mainboard/google/octopus/variants/fleex/variant.c

@@ -6,34 +6,6 @@
 #include <delay.h>
 #include <gpio.h>
 
-struct gpio_with_delay {
-	gpio_t gpio;
-	unsigned int delay_msecs;
-};
-
-static void power_off_lte_module(u8 slp_typ)
-{
-	const struct gpio_with_delay lte_power_off_gpios[] = {
-		{
-			GPIO_161, /* AVS_I2S1_MCLK -- PLT_RST_LTE_L */
-			30,
-		},
-		{
-			GPIO_117, /* PCIE_WAKE1_B -- FULL_CARD_POWER_OFF */
-			100
-		},
-		{
-			GPIO_67, /* UART2-CTS_B -- EN_PP3300_DX_LTE_SOC */
-			0
-		}
-	};
-
-	for (int i = 0; i < ARRAY_SIZE(lte_power_off_gpios); i++) {
-		gpio_output(lte_power_off_gpios[i].gpio, 0);
-		mdelay(lte_power_off_gpios[i].delay_msecs);
-	}
-}
-
 void variant_smi_sleep(u8 slp_typ)
 {
 	/* Currently use cases here all target to S5 therefore we do early return
@@ -41,5 +13,5 @@ void variant_smi_sleep(u8 slp_typ)
 	if (slp_typ != ACPI_S5)
 		return;
 
-	power_off_lte_module(slp_typ);
+	power_off_lte_module();
 }

src/mainboard/google/octopus/variants/garg/variant.c

@@ -9,34 +9,6 @@
 #include <gpio.h>
 #include <variant/sku.h>
 
-struct gpio_with_delay {
-	gpio_t gpio;
-	unsigned int delay_msecs;
-};
-
-static void power_off_lte_module(u8 slp_typ)
-{
-	const struct gpio_with_delay lte_power_off_gpios[] = {
-		{
-			GPIO_161, /* AVS_I2S1_MCLK -- PLT_RST_LTE_L */
-			30,
-		},
-		{
-			GPIO_117, /* PCIE_WAKE1_B -- FULL_CARD_POWER_OFF */
-			100
-		},
-		{
-			GPIO_67, /* UART2-CTS_B -- EN_PP3300_DX_LTE_SOC */
-			0
-		}
-	};
-
-	for (int i = 0; i < ARRAY_SIZE(lte_power_off_gpios); i++) {
-		gpio_output(lte_power_off_gpios[i].gpio, 0);
-		mdelay(lte_power_off_gpios[i].delay_msecs);
-	}
-}
-
 const char *mainboard_vbt_filename(void)
 {
 	uint32_t sku_id;
@@ -64,7 +36,7 @@ void variant_smi_sleep(u8 slp_typ)
 	switch (google_chromeec_get_board_sku()) {
 	case SKU_17_LTE:
 	case SKU_18_LTE_TS:
-		power_off_lte_module(slp_typ);
+		power_off_lte_module();
 		return;
 	default:
 		return;