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From: Dave Stevenson <dave.stevenson@raspberrypi.com>
To: Michael Turquette <mturquette@baylibre.com>,
	 Stephen Boyd <sboyd@kernel.org>,
	 Florian Fainelli <florian.fainelli@broadcom.com>,
	 Broadcom internal kernel review list
	<bcm-kernel-feedback-list@broadcom.com>,
	 Ray Jui <rjui@broadcom.com>,
	Scott Branden <sbranden@broadcom.com>
Cc: linux-clk@vger.kernel.org, linux-rpi-kernel@lists.infradead.org,
	 linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org,
	 Dave Stevenson <dave.stevenson@raspberrypi.com>,
	 Maxime Ripard <mripard@kernel.org>
Subject: [PATCH 5/5] clk: bcm: rpi: Add disp clock
Date: Thu, 16 Jan 2025 16:24:12 +0000	[thread overview]
Message-ID: <20250116-bcm2712-clk-updates-v1-5-10bc92ffbf41@raspberrypi.com> (raw)
In-Reply-To: <20250116-bcm2712-clk-updates-v1-0-10bc92ffbf41@raspberrypi.com>

From: Maxime Ripard <mripard@kernel.org>

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 <sboyd@kernel.org>
Signed-off-by: Maxime Ripard <mripard@kernel.org>
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
---
 drivers/clk/bcm/clk-raspberrypi.c          | 5 +++++
 include/soc/bcm2835/raspberrypi-firmware.h | 1 +
 2 files changed, 6 insertions(+)

diff --git a/drivers/clk/bcm/clk-raspberrypi.c b/drivers/clk/bcm/clk-raspberrypi.c
index b12d86720207..0e1fe3759530 100644
--- a/drivers/clk/bcm/clk-raspberrypi.c
+++ b/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,
+	},
 };
 
 /*
diff --git a/include/soc/bcm2835/raspberrypi-firmware.h b/include/soc/bcm2835/raspberrypi-firmware.h
index 73cac8d0287e..e1f87fbfe554 100644
--- a/include/soc/bcm2835/raspberrypi-firmware.h
+++ b/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,
 };
 

-- 
2.34.1


  parent reply	other threads:[~2025-01-16 16:24 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-01-16 16:24 [PATCH 0/5] clk: bcm: rpi: Add additional clocks for 2712 Dave Stevenson
2025-01-16 16:24 ` [PATCH 1/5] clk: bcm: rpi: Add ISP to exported clocks Dave Stevenson
2025-01-16 17:44   ` Florian Fainelli
2025-01-16 21:28   ` Stephen Boyd
2025-01-16 16:24 ` [PATCH 2/5] clk: bcm: rpi: Allow cpufreq driver to also adjust gpu clocks Dave Stevenson
2025-01-16 17:44   ` Florian Fainelli
2025-01-16 21:28   ` Stephen Boyd
2025-01-16 16:24 ` [PATCH 3/5] clk: bcm: rpi: Enable minimize for all firmware clocks Dave Stevenson
2025-01-16 17:45   ` Florian Fainelli
2025-01-16 21:28   ` Stephen Boyd
2025-01-16 16:24 ` [PATCH 4/5] clk: bcm: rpi: Create helper to retrieve private data Dave Stevenson
2025-01-16 17:45   ` Florian Fainelli
2025-01-16 21:29   ` Stephen Boyd
2025-01-16 16:24 ` Dave Stevenson [this message]
2025-01-16 17:45   ` [PATCH 5/5] clk: bcm: rpi: Add disp clock Florian Fainelli
2025-01-16 21:29   ` Stephen Boyd
2025-01-16 19:11 ` [PATCH 0/5] clk: bcm: rpi: Add additional clocks for 2712 Stefan Wahren
2025-01-16 19:30   ` Dave Stevenson

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