[RESEND v4 0/3] clk: bcm: rpi: Add support for three more clocks

[RESEND v4 0/3] clk: bcm: rpi: Add support for three more clocks

[Ivan T. Ivanov]

Add missing clock required by RPiVid video decoder and provide more
reliable and accurate source for HDMI pixel and video encoder clocks.

Changes since v3
- Put back support for VEC clock, which was actually one of
  reasons for this patch-set [1]. I mixed "HEVC" vs. "VEC", sorry.

  [1] https://bugzilla.suse.com/show_bug.cgi?id=1198942

Changes since v2
- Added Acks from Maxime Ripard and Dave Stevenson

Changes since v1
- Drop RPI_FIRMWARE_VEC_CLK_ID clock it doesn't seems to be used.
- Rework downstream changes on top of recent Maxime changes.

Dom Cobley (1):
  clk: bcm: rpi: Add support for VEC clock

Ivan T. Ivanov (2):
  clk: bcm: rpi: Add support HEVC clock
  clk: bcm: rpi: Handle pixel clock in firmware

 drivers/clk/bcm/clk-raspberrypi.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

-- 
2.35.3


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[RESEND v4 1/3] clk: bcm: rpi: Add support HEVC clock

[Ivan T. Ivanov]

Export clock required for RPiVid video decoder hardware.

Cc: Dom Cobley <popcornmix@gmail.com>
Acked-by: Maxime Ripard <maxime@cerno.tech>
Signed-off-by: Ivan T. Ivanov <iivanov@suse.de>
---
 drivers/clk/bcm/clk-raspberrypi.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/clk/bcm/clk-raspberrypi.c b/drivers/clk/bcm/clk-raspberrypi.c
index 73518009a0f2..8f560c6b602d 100644
--- a/drivers/clk/bcm/clk-raspberrypi.c
+++ b/drivers/clk/bcm/clk-raspberrypi.c
@@ -129,6 +129,9 @@ raspberrypi_clk_variants[RPI_FIRMWARE_NUM_CLK_ID] = {
 	[RPI_FIRMWARE_V3D_CLK_ID] = {
 		.export = true,
 	},
+	[RPI_FIRMWARE_HEVC_CLK_ID] = {
+		.export = true,
+	},
 	[RPI_FIRMWARE_PIXEL_BVB_CLK_ID] = {
 		.export = true,
 	},
-- 
2.35.3


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[RESEND v4 2/3] clk: bcm: rpi: Handle pixel clock in firmware

[Ivan T. Ivanov]

The clk-bcm2835 handling of the pixel clock does not function
correctly when the HDMI power domain is disabled.

The firmware supports it correctly, so add it to the
firmware clock driver.

Acked-by: Maxime Ripard <maxime@cerno.tech>
Acked-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Signed-off-by: Ivan T. Ivanov <iivanov@suse.de>
---
 drivers/clk/bcm/clk-raspberrypi.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/clk/bcm/clk-raspberrypi.c b/drivers/clk/bcm/clk-raspberrypi.c
index 8f560c6b602d..1248c0d64eae 100644
--- a/drivers/clk/bcm/clk-raspberrypi.c
+++ b/drivers/clk/bcm/clk-raspberrypi.c
@@ -129,6 +129,9 @@ raspberrypi_clk_variants[RPI_FIRMWARE_NUM_CLK_ID] = {
 	[RPI_FIRMWARE_V3D_CLK_ID] = {
 		.export = true,
 	},
+	[RPI_FIRMWARE_PIXEL_CLK_ID] = {
+		.export = true,
+	},
 	[RPI_FIRMWARE_HEVC_CLK_ID] = {
 		.export = true,
 	},
-- 
2.35.3


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[RESEND v4 3/3] clk: bcm: rpi: Add support for VEC clock

[Ivan T. Ivanov]

From: Dom Cobley <popcornmix@gmail.com>

Platform driver clk-bcm2835 gets an inaccurate clock for VEC (107MHz).
Export VEC clock trough clk-raspberrypi which uses the right PLL to
get an accurate 108MHz.

Signed-off-by: Dom Cobley <popcornmix@gmail.com>
[iivanov: Adapted on top of v5.17-rc6]
Signed-off-by: Ivan T. Ivanov <iivanov@suse.de>
---
 drivers/clk/bcm/clk-raspberrypi.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/clk/bcm/clk-raspberrypi.c b/drivers/clk/bcm/clk-raspberrypi.c
index 1248c0d64eae..d70bb9283af7 100644
--- a/drivers/clk/bcm/clk-raspberrypi.c
+++ b/drivers/clk/bcm/clk-raspberrypi.c
@@ -33,6 +33,7 @@ enum rpi_firmware_clk_id {
 	RPI_FIRMWARE_EMMC2_CLK_ID,
 	RPI_FIRMWARE_M2MC_CLK_ID,
 	RPI_FIRMWARE_PIXEL_BVB_CLK_ID,
+	RPI_FIRMWARE_VEC_CLK_ID,
 	RPI_FIRMWARE_NUM_CLK_ID,
 };
 
@@ -51,6 +52,7 @@ static char *rpi_firmware_clk_names[] = {
 	[RPI_FIRMWARE_EMMC2_CLK_ID]	= "emmc2",
 	[RPI_FIRMWARE_M2MC_CLK_ID]	= "m2mc",
 	[RPI_FIRMWARE_PIXEL_BVB_CLK_ID]	= "pixel-bvb",
+	[RPI_FIRMWARE_VEC_CLK_ID]	= "vec",
 };
 
 #define RPI_FIRMWARE_STATE_ENABLE_BIT	BIT(0)
@@ -138,6 +140,9 @@ raspberrypi_clk_variants[RPI_FIRMWARE_NUM_CLK_ID] = {
 	[RPI_FIRMWARE_PIXEL_BVB_CLK_ID] = {
 		.export = true,
 	},
+	[RPI_FIRMWARE_VEC_CLK_ID] = {
+		.export = true,
+	},
 };
 
 /*
-- 
2.35.3


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Re: [RESEND v4 1/3] clk: bcm: rpi: Add support HEVC clock

[Stephen Boyd]

Quoting Ivan T. Ivanov (2022-08-29 08:21:52)
> Export clock required for RPiVid video decoder hardware.
> 
> Cc: Dom Cobley <popcornmix@gmail.com>
> Acked-by: Maxime Ripard <maxime@cerno.tech>
> Signed-off-by: Ivan T. Ivanov <iivanov@suse.de>
> ---

Applied to clk-next

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Re: [RESEND v4 2/3] clk: bcm: rpi: Handle pixel clock in firmware

[Stephen Boyd]

Quoting Ivan T. Ivanov (2022-08-29 08:21:53)
> The clk-bcm2835 handling of the pixel clock does not function
> correctly when the HDMI power domain is disabled.
> 
> The firmware supports it correctly, so add it to the
> firmware clock driver.
> 
> Acked-by: Maxime Ripard <maxime@cerno.tech>
> Acked-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
> Signed-off-by: Ivan T. Ivanov <iivanov@suse.de>
> ---

Applied to clk-next

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Re: [RESEND v4 3/3] clk: bcm: rpi: Add support for VEC clock

[Stephen Boyd]

Quoting Ivan T. Ivanov (2022-08-29 08:21:54)
> From: Dom Cobley <popcornmix@gmail.com>
> 
> Platform driver clk-bcm2835 gets an inaccurate clock for VEC (107MHz).
> Export VEC clock trough clk-raspberrypi which uses the right PLL to
> get an accurate 108MHz.
> 
> Signed-off-by: Dom Cobley <popcornmix@gmail.com>
> [iivanov: Adapted on top of v5.17-rc6]
> Signed-off-by: Ivan T. Ivanov <iivanov@suse.de>
> ---

Applied to clk-next

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