linux-kernel - [RFC PATCH 1/3] firmware: Move MediaTek ADSP IPC driver to mediatek folder

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Message-ID: <20250701151149.136365-2-angelogioacchino.delregno@collabora.com>
Date: Tue,  1 Jul 2025 17:11:47 +0200
From: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
To: krzk@...nel.org
Cc: robh@...nel.org,
	conor+dt@...nel.org,
	matthias.bgg@...il.com,
	angelogioacchino.delregno@...labora.com,
	ulf.hansson@...aro.org,
	arnd@...db.de,
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	nm@...com,
	khilman@...libre.com,
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	u.kleine-koenig@...libre.com,
	gregkh@...uxfoundation.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-mediatek@...ts.infradead.org,
	laura.nao@...labora.com,
	kernel@...labora.com
Subject: [RFC PATCH 1/3] firmware: Move MediaTek ADSP IPC driver to mediatek folder

In preparation for adding more MediaTek firmware drivers, create a
new `mediatek` folder and move the mtk-adsp-ipc driver into it.

Also move the Kconfig and Makefile entries to the new ones in the
folder.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
---
 drivers/firmware/Kconfig                       | 10 +---------
 drivers/firmware/Makefile                      |  2 +-
 drivers/firmware/mediatek/Kconfig              | 14 ++++++++++++++
 drivers/firmware/mediatek/Makefile             |  3 +++
 drivers/firmware/{ => mediatek}/mtk-adsp-ipc.c |  0
 5 files changed, 19 insertions(+), 10 deletions(-)
 create mode 100644 drivers/firmware/mediatek/Kconfig
 create mode 100644 drivers/firmware/mediatek/Makefile
 rename drivers/firmware/{ => mediatek}/mtk-adsp-ipc.c (100%)

diff --git a/drivers/firmware/Kconfig b/drivers/firmware/Kconfig
index bbd2155d8483..f35648686f91 100644
--- a/drivers/firmware/Kconfig
+++ b/drivers/firmware/Kconfig
@@ -169,15 +169,6 @@ config INTEL_STRATIX10_RSU
 
 	  Say Y here if you want Intel RSU support.
 
-config MTK_ADSP_IPC
-	tristate "MTK ADSP IPC Protocol driver"
-	depends on MTK_ADSP_MBOX
-	help
-	  Say yes here to add support for the MediaTek ADSP IPC
-	  between host AP (Linux) and the firmware running on ADSP.
-	  ADSP exists on some mtk processors.
-	  Client might use shared memory to exchange information with ADSP.
-
 config SYSFB
 	bool
 	select BOOT_VESA_SUPPORT
@@ -290,6 +281,7 @@ source "drivers/firmware/cirrus/Kconfig"
 source "drivers/firmware/google/Kconfig"
 source "drivers/firmware/efi/Kconfig"
 source "drivers/firmware/imx/Kconfig"
+source "drivers/firmware/mediatek/Kconfig"
 source "drivers/firmware/meson/Kconfig"
 source "drivers/firmware/microchip/Kconfig"
 source "drivers/firmware/psci/Kconfig"
diff --git a/drivers/firmware/Makefile b/drivers/firmware/Makefile
index 4ddec2820c96..5bb382344906 100644
--- a/drivers/firmware/Makefile
+++ b/drivers/firmware/Makefile
@@ -13,7 +13,6 @@ obj-$(CONFIG_INTEL_STRATIX10_RSU)     += stratix10-rsu.o
 obj-$(CONFIG_ISCSI_IBFT_FIND)	+= iscsi_ibft_find.o
 obj-$(CONFIG_ISCSI_IBFT)	+= iscsi_ibft.o
 obj-$(CONFIG_FIRMWARE_MEMMAP)	+= memmap.o
-obj-$(CONFIG_MTK_ADSP_IPC)	+= mtk-adsp-ipc.o
 obj-$(CONFIG_RASPBERRYPI_FIRMWARE) += raspberrypi.o
 obj-$(CONFIG_FW_CFG_SYSFS)	+= qemu_fw_cfg.o
 obj-$(CONFIG_SYSFB)		+= sysfb.o
@@ -27,6 +26,7 @@ obj-y				+= arm_ffa/
 obj-y				+= arm_scmi/
 obj-y				+= broadcom/
 obj-y				+= cirrus/
+obj-y				+= mediatek/
 obj-y				+= meson/
 obj-y				+= microchip/
 obj-$(CONFIG_GOOGLE_FIRMWARE)	+= google/
diff --git a/drivers/firmware/mediatek/Kconfig b/drivers/firmware/mediatek/Kconfig
new file mode 100644
index 000000000000..f6f16e71fbda
--- /dev/null
+++ b/drivers/firmware/mediatek/Kconfig
@@ -0,0 +1,14 @@
+# SPDX-License-Identifier: GPL-2.0-only
+
+menu "MediaTek firmware drivers"
+
+config MTK_ADSP_IPC
+	tristate "MTK ADSP IPC Protocol driver"
+	depends on MTK_ADSP_MBOX
+	help
+	  Say yes here to add support for the MediaTek ADSP IPC
+	  between host AP (Linux) and the firmware running on ADSP.
+	  ADSP exists on some mtk processors.
+	  Client might use shared memory to exchange information with ADSP.
+
+endmenu
diff --git a/drivers/firmware/mediatek/Makefile b/drivers/firmware/mediatek/Makefile
new file mode 100644
index 000000000000..3c0d9d67d646
--- /dev/null
+++ b/drivers/firmware/mediatek/Makefile
@@ -0,0 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0-only
+
+obj-$(CONFIG_MTK_ADSP_IPC)		+= mtk-adsp-ipc.o
diff --git a/drivers/firmware/mtk-adsp-ipc.c b/drivers/firmware/mediatek/mtk-adsp-ipc.c
similarity index 100%
rename from drivers/firmware/mtk-adsp-ipc.c
rename to drivers/firmware/mediatek/mtk-adsp-ipc.c
-- 
2.49.0