Commit e7d0b023 authored by Maxime Ripard's avatar Maxime Ripard Committed by Stephen Boyd
Browse files

clk: bcm: rpi: Add disp clock 



BCM2712 has an extra clock exposed by the firmware called DISP, and used
by (at least) the HVS. Let's add it to the list of clocks to register in
Linux.

Acked-by: default avatarStephen Boyd <sboyd@kernel.org>
Signed-off-by: default avatarMaxime Ripard <mripard@kernel.org>
Signed-off-by: default avatarDave Stevenson <dave.stevenson@raspberrypi.com>
Link: https://lore.kernel.org/r/20250116-bcm2712-clk-updates-v1-5-10bc92ffbf41@raspberrypi.com


Reviewed-by: default avatarFlorian Fainelli <florian.fainelli@broadcom.com>
Signed-off-by: default avatarStephen Boyd <sboyd@kernel.org>
parent 4af2cfc2

drivers/clk/bcm/clk-raspberrypi.c

+5 −0
Original line number Diff line number Diff line
@@ -34,6 +34,7 @@ static char *rpi_firmware_clk_names[] = { 
	[RPI_FIRMWARE_M2MC_CLK_ID]	= "m2mc",

	[RPI_FIRMWARE_PIXEL_BVB_CLK_ID]	= "pixel-bvb",

	[RPI_FIRMWARE_VEC_CLK_ID]	= "vec",

	[RPI_FIRMWARE_DISP_CLK_ID]	= "disp",

};



#define RPI_FIRMWARE_STATE_ENABLE_BIT	BIT(0)
@@ -139,6 +140,10 @@ raspberrypi_clk_variants[RPI_FIRMWARE_NUM_CLK_ID] = { 
		.export = true,

		.minimize = true,

	},

	[RPI_FIRMWARE_DISP_CLK_ID] = {

		.export = true,

		.minimize = true,

	},

};



/*

include/soc/bcm2835/raspberrypi-firmware.h

+1 −0
Original line number Diff line number Diff line
@@ -152,6 +152,7 @@ enum rpi_firmware_clk_id { 
	RPI_FIRMWARE_M2MC_CLK_ID,

	RPI_FIRMWARE_PIXEL_BVB_CLK_ID,

	RPI_FIRMWARE_VEC_CLK_ID,

	RPI_FIRMWARE_DISP_CLK_ID,

	RPI_FIRMWARE_NUM_CLK_ID,

};