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: Stephen Boyd <[email protected]>
Signed-off-by: Maxime Ripard <[email protected]>
Signed-off-by: Dave Stevenson <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Reviewed-by: Florian Fainelli <[email protected]>
Signed-off-by: Stephen Boyd <[email protected]>

Author: mripard

drivers/clk/bcm/clk-raspberrypi.c

@@ -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

@@ -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,
 };