mfd: cros_ec: Add SCP Core-1 as a new CrOS EC MCU

MT8195 System Companion Processors(SCP) is a dual-core RISC-V MCU.
Add a new CrOS feature ID to represent the SCP's 2nd core.

The 1st core is referred to as 'core 0', and the 2nd core is referred
to as 'core 1'.

Signed-off-by: Tinghan Shen <tinghan.shen@mediatek.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20220601112201.15510-16-tinghan.shen@mediatek.com

diff --git a/drivers/mfd/cros_ec_dev.c b/drivers/mfd/cros_ec_dev.c
index 596731c..07cc31d 100644 (file)
--- a/drivers/mfd/cros_ec_dev.c
+++ b/drivers/mfd/cros_ec_dev.c
@@ -65,6 +65,11 @@ static const struct cros_feature_to_name cros_mcu_devices[] = {
                .desc   = "System Control Processor",
        },
        {
+               .id     = EC_FEATURE_SCP_C1,
+               .name   = CROS_EC_DEV_SCP_C1_NAME,
+               .desc   = "System Control Processor 2nd Core",
+       },
+       {
                .id     = EC_FEATURE_TOUCHPAD,
                .name   = CROS_EC_DEV_TP_NAME,
                .desc   = "Touchpad",

diff --git a/include/linux/platform_data/cros_ec_commands.h b/include/linux/platform_data/cros_ec_commands.h
index 8cfa8cf..9fbf1c5 100644 (file)
--- a/include/linux/platform_data/cros_ec_commands.h
+++ b/include/linux/platform_data/cros_ec_commands.h
@@ -1300,6 +1300,8 @@ enum ec_feature_code {
         * mux.
         */
        EC_FEATURE_TYPEC_MUX_REQUIRE_AP_ACK = 43,
+       /* The MCU is a System Companion Processor (SCP) 2nd Core. */
+       EC_FEATURE_SCP_C1 = 45,
 };
 
 #define EC_FEATURE_MASK_0(event_code) BIT(event_code % 32)

diff --git a/include/linux/platform_data/cros_ec_proto.h b/include/linux/platform_data/cros_ec_proto.h
index 138fd91..da06dc7 100644 (file)
--- a/include/linux/platform_data/cros_ec_proto.h
+++ b/include/linux/platform_data/cros_ec_proto.h
@@ -19,6 +19,7 @@
 #define CROS_EC_DEV_ISH_NAME   "cros_ish"
 #define CROS_EC_DEV_PD_NAME    "cros_pd"
 #define CROS_EC_DEV_SCP_NAME   "cros_scp"
+#define CROS_EC_DEV_SCP_C1_NAME        "cros_scp_c1"
 #define CROS_EC_DEV_TP_NAME    "cros_tp"
 
 /*