2022-07-05 21:54:39

by Conor Dooley

[permalink] [raw]
Subject: [PATCH v5 00/13] Canaan devicetree fixes

From: Conor Dooley <[email protected]>

Hey all,
This series should rid us of dtbs_check errors for the RISC-V Canaan k210
based boards. To make keeping it that way a little easier, I changed the
Canaan devicetree Makefile so that it would build all of the devicetrees
in the directory if SOC_CANAAN.

I *DO NOT* have any Canaan hardware so I have not tested any of this in
action. Since I sent v1, I tried to buy some since it's cheap - but could
out of the limited stockists none seemed to want to deliver to Ireland :(
I based the series on next-20220617.

Thanks,
Conor.

Changes since v4:
- add Rob's tags from v3
- sram: rephrase the binding description
- ASoC: dropped the applied binding

Changes since v3:
- dts: drop the bogus "regs" property pointed out by Niklas
- dma/timer: add Serge's reviews (and expand on the dma interrupt
description)
- dts: add Niklas' T-b where I felt it was suitable. lmk if you think it
applies more broadly
- spi: drop the applied spi dt-binding change. Thanks Mark.

Changes since v2:
- i2s: added clocks maxItems
- dma: unconditionally extended the interrupts & dropped canaan
compatible
- timer: as per Sergey, split the timer dts nodes in 2 & drop the
binding patch
- ili9341: add a canaan specific compatible to the binding and dts

Changes since v1:
- I added a new dt node & compatible for the SRAM memory controller due
Damien's wish to preserve the inter-op with U-Boot.
- The dw-apb-ssi binding now uses the default rx/tx widths
- A new patch fixes bus {ranges,reg} warnings
- Rearranged the patches in a slightly more logical order

Conor Dooley (13):
dt-bindings: display: convert ilitek,ili9341.txt to dt-schema
dt-bindings: display: ili9341: document canaan kd233's lcd
dt-bindings: dma: dw-axi-dmac: extend the number of interrupts
dt-bindings: memory-controllers: add canaan k210 sram controller
riscv: dts: canaan: fix the k210's memory node
riscv: dts: canaan: fix the k210's timer nodes
riscv: dts: canaan: fix mmc node names
riscv: dts: canaan: fix kd233 display spi frequency
riscv: dts: canaan: use custom compatible for k210 i2s
riscv: dts: canaan: remove spi-max-frequency from controllers
riscv: dts: canaan: fix bus {ranges,reg} warnings
riscv: dts: canaan: add specific compatible for kd233's LCD
riscv: dts: canaan: build all devicetress if SOC_CANAAN

.../bindings/display/ilitek,ili9341.txt | 27 -------
.../display/panel/ilitek,ili9341.yaml | 49 +++++++++----
.../bindings/dma/snps,dw-axi-dmac.yaml | 7 +-
.../memory-controllers/canaan,k210-sram.yaml | 52 +++++++++++++
arch/riscv/boot/dts/canaan/Makefile | 10 ++-
arch/riscv/boot/dts/canaan/canaan_kd233.dts | 6 +-
arch/riscv/boot/dts/canaan/k210.dtsi | 73 +++++++++++++------
.../riscv/boot/dts/canaan/sipeed_maix_bit.dts | 2 +-
.../boot/dts/canaan/sipeed_maix_dock.dts | 2 +-
arch/riscv/boot/dts/canaan/sipeed_maix_go.dts | 2 +-
.../boot/dts/canaan/sipeed_maixduino.dts | 2 +-
11 files changed, 159 insertions(+), 73 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/display/ilitek,ili9341.txt
create mode 100644 Documentation/devicetree/bindings/memory-controllers/canaan,k210-sram.yaml


base-commit: b6f1f2fa2bddd69ff46a190b8120bd440fd50563
--
2.37.0


2022-07-05 21:54:44

by Conor Dooley

[permalink] [raw]
Subject: [PATCH v5 02/13] dt-bindings: display: ili9341: document canaan kd233's lcd

From: Conor Dooley <[email protected]>

The Canaan KD233 development board has a built in LCD.
Add a specific compatible for it.

Reviewed-by: Rob Herring <[email protected]>
Signed-off-by: Conor Dooley <[email protected]>
---
.../devicetree/bindings/display/panel/ilitek,ili9341.yaml | 1 +
1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/display/panel/ilitek,ili9341.yaml b/Documentation/devicetree/bindings/display/panel/ilitek,ili9341.yaml
index c5571391ca28..99e0cb9440cf 100644
--- a/Documentation/devicetree/bindings/display/panel/ilitek,ili9341.yaml
+++ b/Documentation/devicetree/bindings/display/panel/ilitek,ili9341.yaml
@@ -24,6 +24,7 @@ properties:
- adafruit,yx240qv29
# ili9341 240*320 Color on stm32f429-disco board
- st,sf-tc240t-9370-t
+ - canaan,kd233-tft
- const: ilitek,ili9341

reg: true
--
2.37.0

2022-07-05 21:54:53

by Conor Dooley

[permalink] [raw]
Subject: [PATCH v5 03/13] dt-bindings: dma: dw-axi-dmac: extend the number of interrupts

From: Conor Dooley <[email protected]>

The Canaan k210 apparently has a Sysnopsys Designware AXI DMA
controller, but according to the documentation & devicetree it has 6
interrupts rather than the standard one. Support the 6 interrupt
configuration by unconditionally extending the binding to a maximum of
8 per-channel interrupts thereby matching the number of possible
channels.

Link: https://canaan-creative.com/wp-content/uploads/2020/03/kendryte_standalone_programming_guide_20190311144158_en.pdf #Page 51
Reviewed-by: Serge Semin <[email protected]>
Reviewed-by: Rob Herring <[email protected]>
Signed-off-by: Conor Dooley <[email protected]>
---
.../devicetree/bindings/dma/snps,dw-axi-dmac.yaml | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/dma/snps,dw-axi-dmac.yaml b/Documentation/devicetree/bindings/dma/snps,dw-axi-dmac.yaml
index 4324a94b26b2..67aa7bb6d36a 100644
--- a/Documentation/devicetree/bindings/dma/snps,dw-axi-dmac.yaml
+++ b/Documentation/devicetree/bindings/dma/snps,dw-axi-dmac.yaml
@@ -34,7 +34,12 @@ properties:
- const: axidma_apb_regs

interrupts:
- maxItems: 1
+ description:
+ If the IP-core synthesis parameter DMAX_INTR_IO_TYPE is set to 1, this
+ will be per-channel interrupts. Otherwise, this is a single combined IRQ
+ for all channels.
+ minItems: 1
+ maxItems: 8

clocks:
items:
--
2.37.0

2022-07-05 21:55:11

by Conor Dooley

[permalink] [raw]
Subject: [PATCH v5 07/13] riscv: dts: canaan: fix mmc node names

From: Conor Dooley <[email protected]>

The newly-converted-to-dt-schema binding expects the mmc node name to be
'^mmc(@.*)?$' so align the devicetree with the schema.

Tested-by: Niklas Cassel <[email protected]>
Signed-off-by: Conor Dooley <[email protected]>
---
arch/riscv/boot/dts/canaan/canaan_kd233.dts | 2 +-
arch/riscv/boot/dts/canaan/sipeed_maix_bit.dts | 2 +-
arch/riscv/boot/dts/canaan/sipeed_maix_dock.dts | 2 +-
arch/riscv/boot/dts/canaan/sipeed_maix_go.dts | 2 +-
arch/riscv/boot/dts/canaan/sipeed_maixduino.dts | 2 +-
5 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/arch/riscv/boot/dts/canaan/canaan_kd233.dts b/arch/riscv/boot/dts/canaan/canaan_kd233.dts
index 039b92abf046..40992d495aa8 100644
--- a/arch/riscv/boot/dts/canaan/canaan_kd233.dts
+++ b/arch/riscv/boot/dts/canaan/canaan_kd233.dts
@@ -142,7 +142,7 @@ &spi1 {
cs-gpios = <&gpio0 16 GPIO_ACTIVE_LOW>;
status = "okay";

- slot@0 {
+ mmc@0 {
compatible = "mmc-spi-slot";
reg = <0>;
voltage-ranges = <3300 3300>;
diff --git a/arch/riscv/boot/dts/canaan/sipeed_maix_bit.dts b/arch/riscv/boot/dts/canaan/sipeed_maix_bit.dts
index b9e30df127fe..5e809d0e11fb 100644
--- a/arch/riscv/boot/dts/canaan/sipeed_maix_bit.dts
+++ b/arch/riscv/boot/dts/canaan/sipeed_maix_bit.dts
@@ -189,7 +189,7 @@ &spi1 {
cs-gpios = <&gpio0 13 GPIO_ACTIVE_LOW>;
status = "okay";

- slot@0 {
+ mmc@0 {
compatible = "mmc-spi-slot";
reg = <0>;
voltage-ranges = <3300 3300>;
diff --git a/arch/riscv/boot/dts/canaan/sipeed_maix_dock.dts b/arch/riscv/boot/dts/canaan/sipeed_maix_dock.dts
index 8d23401b0bbb..4be5ffac6b4a 100644
--- a/arch/riscv/boot/dts/canaan/sipeed_maix_dock.dts
+++ b/arch/riscv/boot/dts/canaan/sipeed_maix_dock.dts
@@ -191,7 +191,7 @@ &spi1 {
cs-gpios = <&gpio0 13 GPIO_ACTIVE_LOW>;
status = "okay";

- slot@0 {
+ mmc@0 {
compatible = "mmc-spi-slot";
reg = <0>;
voltage-ranges = <3300 3300>;
diff --git a/arch/riscv/boot/dts/canaan/sipeed_maix_go.dts b/arch/riscv/boot/dts/canaan/sipeed_maix_go.dts
index 24fd83b43d9d..5c63f79b18ec 100644
--- a/arch/riscv/boot/dts/canaan/sipeed_maix_go.dts
+++ b/arch/riscv/boot/dts/canaan/sipeed_maix_go.dts
@@ -199,7 +199,7 @@ &spi1 {
cs-gpios = <&gpio0 13 GPIO_ACTIVE_LOW>;
status = "okay";

- slot@0 {
+ mmc@0 {
compatible = "mmc-spi-slot";
reg = <0>;
voltage-ranges = <3300 3300>;
diff --git a/arch/riscv/boot/dts/canaan/sipeed_maixduino.dts b/arch/riscv/boot/dts/canaan/sipeed_maixduino.dts
index 25341f38292a..59f7eaf74655 100644
--- a/arch/riscv/boot/dts/canaan/sipeed_maixduino.dts
+++ b/arch/riscv/boot/dts/canaan/sipeed_maixduino.dts
@@ -164,7 +164,7 @@ &spi1 {
cs-gpios = <&gpio1_0 2 GPIO_ACTIVE_LOW>;
status = "okay";

- slot@0 {
+ mmc@0 {
compatible = "mmc-spi-slot";
reg = <0>;
voltage-ranges = <3300 3300>;
--
2.37.0

2022-07-05 21:55:12

by Conor Dooley

[permalink] [raw]
Subject: [PATCH v5 06/13] riscv: dts: canaan: fix the k210's timer nodes

From: Conor Dooley <[email protected]>

The timers on the k210 have non standard interrupt configurations,
which leads to dtbs_check warnings:

k210_generic.dtb: timer@502d0000: interrupts: [[14], [15]] is too long
From schema: Documentation/devicetree/bindings/timer/snps,dw-apb-timer.yaml

Split the timer nodes in two, so that the second timer in the IP block
can actually be accessed & in the process solve the dtbs_check warning.

Reviewed-by: Serge Semin <[email protected]>
Signed-off-by: Conor Dooley <[email protected]>
---
arch/riscv/boot/dts/canaan/k210.dtsi | 46 +++++++++++++++++++++++-----
1 file changed, 38 insertions(+), 8 deletions(-)

diff --git a/arch/riscv/boot/dts/canaan/k210.dtsi b/arch/riscv/boot/dts/canaan/k210.dtsi
index cd4eae82d8b2..72f70128d751 100644
--- a/arch/riscv/boot/dts/canaan/k210.dtsi
+++ b/arch/riscv/boot/dts/canaan/k210.dtsi
@@ -319,28 +319,58 @@ fpioa: pinmux@502b0000 {

timer0: timer@502d0000 {
compatible = "snps,dw-apb-timer";
- reg = <0x502D0000 0x100>;
- interrupts = <14>, <15>;
+ reg = <0x502D0000 0x14>;
+ interrupts = <14>;
clocks = <&sysclk K210_CLK_TIMER0>,
<&sysclk K210_CLK_APB0>;
clock-names = "timer", "pclk";
resets = <&sysrst K210_RST_TIMER0>;
};

- timer1: timer@502e0000 {
+ timer1: timer@502d0014 {
compatible = "snps,dw-apb-timer";
- reg = <0x502E0000 0x100>;
- interrupts = <16>, <17>;
+ reg = <0x502D0014 0x14>;
+ interrupts = <15>;
+ clocks = <&sysclk K210_CLK_TIMER0>,
+ <&sysclk K210_CLK_APB0>;
+ clock-names = "timer", "pclk";
+ resets = <&sysrst K210_RST_TIMER0>;
+ };
+
+ timer2: timer@502e0000 {
+ compatible = "snps,dw-apb-timer";
+ reg = <0x502E0000 0x14>;
+ interrupts = <16>;
clocks = <&sysclk K210_CLK_TIMER1>,
<&sysclk K210_CLK_APB0>;
clock-names = "timer", "pclk";
resets = <&sysrst K210_RST_TIMER1>;
};

- timer2: timer@502f0000 {
+ timer3: timer@502e0014 {
+ compatible = "snps,dw-apb-timer";
+ reg = <0x502E0014 0x114>;
+ interrupts = <17>;
+ clocks = <&sysclk K210_CLK_TIMER1>,
+ <&sysclk K210_CLK_APB0>;
+ clock-names = "timer", "pclk";
+ resets = <&sysrst K210_RST_TIMER1>;
+ };
+
+ timer4: timer@502f0000 {
+ compatible = "snps,dw-apb-timer";
+ reg = <0x502F0000 0x14>;
+ interrupts = <18>;
+ clocks = <&sysclk K210_CLK_TIMER2>,
+ <&sysclk K210_CLK_APB0>;
+ clock-names = "timer", "pclk";
+ resets = <&sysrst K210_RST_TIMER2>;
+ };
+
+ timer5: timer@502f0014 {
compatible = "snps,dw-apb-timer";
- reg = <0x502F0000 0x100>;
- interrupts = <18>, <19>;
+ reg = <0x502F0014 0x14>;
+ interrupts = <19>;
clocks = <&sysclk K210_CLK_TIMER2>,
<&sysclk K210_CLK_APB0>;
clock-names = "timer", "pclk";
--
2.37.0

2022-07-05 21:55:15

by Conor Dooley

[permalink] [raw]
Subject: [PATCH v5 08/13] riscv: dts: canaan: fix kd233 display spi frequency

From: Conor Dooley <[email protected]>

The binding for the ili9341 specifies a const spi-max-frequency of 10
MHz but the kd233 devicetree entry has it listed at 15 Mhz.
Align the devicetree with the value in the binding.

Signed-off-by: Conor Dooley <[email protected]>
---
arch/riscv/boot/dts/canaan/canaan_kd233.dts | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/riscv/boot/dts/canaan/canaan_kd233.dts b/arch/riscv/boot/dts/canaan/canaan_kd233.dts
index 40992d495aa8..4a540158f287 100644
--- a/arch/riscv/boot/dts/canaan/canaan_kd233.dts
+++ b/arch/riscv/boot/dts/canaan/canaan_kd233.dts
@@ -130,7 +130,7 @@ panel@0 {
compatible = "ilitek,ili9341";
reg = <0>;
dc-gpios = <&gpio0 21 GPIO_ACTIVE_HIGH>;
- spi-max-frequency = <15000000>;
+ spi-max-frequency = <10000000>;
status = "disabled";
};
};
--
2.37.0

2022-07-05 21:57:47

by Conor Dooley

[permalink] [raw]
Subject: [PATCH v5 12/13] riscv: dts: canaan: add specific compatible for kd233's LCD

From: Conor Dooley <[email protected]>

Add the recently introduced compatible for the LCD on the Canaan KD233.

Signed-off-by: Conor Dooley <[email protected]>
---
arch/riscv/boot/dts/canaan/canaan_kd233.dts | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/riscv/boot/dts/canaan/canaan_kd233.dts b/arch/riscv/boot/dts/canaan/canaan_kd233.dts
index 4a540158f287..b0cd0105a5bd 100644
--- a/arch/riscv/boot/dts/canaan/canaan_kd233.dts
+++ b/arch/riscv/boot/dts/canaan/canaan_kd233.dts
@@ -127,7 +127,7 @@ &spi0 {
cs-gpios = <&gpio0 20 GPIO_ACTIVE_HIGH>;

panel@0 {
- compatible = "ilitek,ili9341";
+ compatible = "canaan,kd233-tft", "ilitek,ili9341";
reg = <0>;
dc-gpios = <&gpio0 21 GPIO_ACTIVE_HIGH>;
spi-max-frequency = <10000000>;
--
2.37.0

2022-07-05 21:58:06

by Conor Dooley

[permalink] [raw]
Subject: [PATCH v5 13/13] riscv: dts: canaan: build all devicetress if SOC_CANAAN

From: Conor Dooley <[email protected]>

Testing & checking the Canaan devicetrees is inconvenient as only the
devicetree corresponding to SOC_CANAAN_K210_DTB_BUILTIN will be built.
Change the Makefile so that all devicetrees are built by default if
SOC_CANAAN but only the one specified by SOC_CANAAN_K210_DTB_BUILTIN
gets built as an object.

Signed-off-by: Conor Dooley <[email protected]>
---
arch/riscv/boot/dts/canaan/Makefile | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/arch/riscv/boot/dts/canaan/Makefile b/arch/riscv/boot/dts/canaan/Makefile
index c61b08ac8554..befe4eb7527b 100644
--- a/arch/riscv/boot/dts/canaan/Makefile
+++ b/arch/riscv/boot/dts/canaan/Makefile
@@ -1,3 +1,9 @@
# SPDX-License-Identifier: GPL-2.0
-dtb-$(CONFIG_SOC_CANAAN_K210_DTB_BUILTIN) += $(addsuffix .dtb, $(CONFIG_SOC_CANAAN_K210_DTB_SOURCE))
-obj-$(CONFIG_SOC_CANAAN_K210_DTB_BUILTIN) += $(addsuffix .o, $(dtb-y))
+dtb-$(CONFIG_SOC_CANAAN) += canaan_kd233.dtb
+dtb-$(CONFIG_SOC_CANAAN) += k210_generic.dtb
+dtb-$(CONFIG_SOC_CANAAN) += sipeed_maix_bit.dtb
+dtb-$(CONFIG_SOC_CANAAN) += sipeed_maix_dock.dtb
+dtb-$(CONFIG_SOC_CANAAN) += sipeed_maix_go.dtb
+dtb-$(CONFIG_SOC_CANAAN) += sipeed_maixduino.dtb
+
+obj-$(CONFIG_SOC_CANAAN_K210_DTB_BUILTIN) += $(addsuffix .dtb.o, $(CONFIG_SOC_CANAAN_K210_DTB_SOURCE))
--
2.37.0

2022-07-05 22:00:51

by Conor Dooley

[permalink] [raw]
Subject: [PATCH v5 09/13] riscv: dts: canaan: use custom compatible for k210 i2s

From: Conor Dooley <[email protected]>

The devicetrees using the Canaan k210 all have a sound-dai-cells value
of 1, whereas the standard binding example for the DesignWare i2s and
other use cases suggest 0. Use a k210 specific compatible which
supports this difference.

Signed-off-by: Conor Dooley <[email protected]>
---
arch/riscv/boot/dts/canaan/k210.dtsi | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/riscv/boot/dts/canaan/k210.dtsi b/arch/riscv/boot/dts/canaan/k210.dtsi
index 72f70128d751..900dc629a945 100644
--- a/arch/riscv/boot/dts/canaan/k210.dtsi
+++ b/arch/riscv/boot/dts/canaan/k210.dtsi
@@ -251,7 +251,7 @@ spi2: spi@50240000 {
};

i2s0: i2s@50250000 {
- compatible = "snps,designware-i2s";
+ compatible = "canaan,k210-i2s", "snps,designware-i2s";
reg = <0x50250000 0x200>;
interrupts = <5>;
clocks = <&sysclk K210_CLK_I2S0>;
@@ -260,7 +260,7 @@ i2s0: i2s@50250000 {
};

i2s1: i2s@50260000 {
- compatible = "snps,designware-i2s";
+ compatible = "canaan,k210-i2s", "snps,designware-i2s";
reg = <0x50260000 0x200>;
interrupts = <6>;
clocks = <&sysclk K210_CLK_I2S1>;
@@ -269,7 +269,7 @@ i2s1: i2s@50260000 {
};

i2s2: i2s@50270000 {
- compatible = "snps,designware-i2s";
+ compatible = "canaan,k210-i2s", "snps,designware-i2s";
reg = <0x50270000 0x200>;
interrupts = <7>;
clocks = <&sysclk K210_CLK_I2S2>;
--
2.37.0

2022-07-05 22:00:52

by Conor Dooley

[permalink] [raw]
Subject: [PATCH v5 10/13] riscv: dts: canaan: remove spi-max-frequency from controllers

From: Conor Dooley <[email protected]>

spi-max-frequency is a device, not a controller property and should be
removed.

Link: https://lore.kernel.org/lkml/[email protected]/
Tested-by: Niklas Cassel <[email protected]>
Signed-off-by: Conor Dooley <[email protected]>
---
arch/riscv/boot/dts/canaan/k210.dtsi | 5 +----
1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/arch/riscv/boot/dts/canaan/k210.dtsi b/arch/riscv/boot/dts/canaan/k210.dtsi
index 900dc629a945..948dc235e39d 100644
--- a/arch/riscv/boot/dts/canaan/k210.dtsi
+++ b/arch/riscv/boot/dts/canaan/k210.dtsi
@@ -451,7 +451,6 @@ spi0: spi@52000000 {
clock-names = "ssi_clk", "pclk";
resets = <&sysrst K210_RST_SPI0>;
reset-names = "spi";
- spi-max-frequency = <25000000>;
num-cs = <4>;
reg-io-width = <4>;
};
@@ -467,7 +466,6 @@ spi1: spi@53000000 {
clock-names = "ssi_clk", "pclk";
resets = <&sysrst K210_RST_SPI1>;
reset-names = "spi";
- spi-max-frequency = <25000000>;
num-cs = <4>;
reg-io-width = <4>;
};
@@ -483,8 +481,7 @@ spi3: spi@54000000 {
clock-names = "ssi_clk", "pclk";
resets = <&sysrst K210_RST_SPI3>;
reset-names = "spi";
- /* Could possibly go up to 200 MHz */
- spi-max-frequency = <100000000>;
+
num-cs = <4>;
reg-io-width = <4>;
};
--
2.37.0

2022-07-05 22:04:23

by Conor Dooley

[permalink] [raw]
Subject: [PATCH v5 04/13] dt-bindings: memory-controllers: add canaan k210 sram controller

From: Conor Dooley <[email protected]>

The k210 U-Boot port has been using the clocks defined in the
devicetree to bring up the board's SRAM, but this violates the
dt-schema. As such, move the clocks to a dedicated node with
the same compatible string & document it.

Signed-off-by: Conor Dooley <[email protected]>
---
.../memory-controllers/canaan,k210-sram.yaml | 52 +++++++++++++++++++
1 file changed, 52 insertions(+)
create mode 100644 Documentation/devicetree/bindings/memory-controllers/canaan,k210-sram.yaml

diff --git a/Documentation/devicetree/bindings/memory-controllers/canaan,k210-sram.yaml b/Documentation/devicetree/bindings/memory-controllers/canaan,k210-sram.yaml
new file mode 100644
index 000000000000..f81fb866e319
--- /dev/null
+++ b/Documentation/devicetree/bindings/memory-controllers/canaan,k210-sram.yaml
@@ -0,0 +1,52 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/memory-controllers/canaan,k210-sram.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Canaan K210 SRAM memory controller
+
+description:
+ The Canaan K210 SRAM memory controller is responsible for the system's 8 MiB
+ of SRAM. The controller is initialised by the bootloader, which configures
+ its clocks, before OS bringup.
+
+maintainers:
+ - Conor Dooley <[email protected]>
+
+properties:
+ compatible:
+ enum:
+ - canaan,k210-sram
+
+ clocks:
+ minItems: 1
+ items:
+ - description: sram0 clock
+ - description: sram1 clock
+ - description: aisram clock
+
+ clock-names:
+ minItems: 1
+ items:
+ - const: sram0
+ - const: sram1
+ - const: aisram
+
+required:
+ - compatible
+ - clocks
+ - clock-names
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/k210-clk.h>
+ memory-controller {
+ compatible = "canaan,k210-sram";
+ clocks = <&sysclk K210_CLK_SRAM0>,
+ <&sysclk K210_CLK_SRAM1>,
+ <&sysclk K210_CLK_AI>;
+ clock-names = "sram0", "sram1", "aisram";
+ };
--
2.37.0

2022-07-05 22:04:38

by Conor Dooley

[permalink] [raw]
Subject: [PATCH v5 11/13] riscv: dts: canaan: fix bus {ranges,reg} warnings

From: Conor Dooley <[email protected]>

The k210 devicetrees warn about missing/empty reg and/or ranges
properties:
arch/riscv/boot/dts/canaan/k210.dtsi:408.22-460.5: Warning (unit_address_vs_reg): /soc/bus@52000000: node has a unit name, but no reg or ranges property
arch/riscv/boot/dts/canaan/k210.dtsi:352.22-406.5: Warning (simple_bus_reg): /soc/bus@50400000: missing or empty reg/ranges property

Add a ranges properties that naively caps the buses after the
allocation of their last devices.

Tested-by: Niklas Cassel <[email protected]>
Signed-off-by: Conor Dooley <[email protected]>
---
arch/riscv/boot/dts/canaan/k210.dtsi | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/riscv/boot/dts/canaan/k210.dtsi b/arch/riscv/boot/dts/canaan/k210.dtsi
index 948dc235e39d..a515e5fb1af3 100644
--- a/arch/riscv/boot/dts/canaan/k210.dtsi
+++ b/arch/riscv/boot/dts/canaan/k210.dtsi
@@ -163,7 +163,7 @@ apb0: bus@50200000 {
#address-cells = <1>;
#size-cells = <1>;
compatible = "simple-pm-bus";
- ranges;
+ ranges = <0x50200000 0x50200000 0x200000>;
clocks = <&sysclk K210_CLK_APB0>;

gpio1: gpio@50200000 {
@@ -382,7 +382,7 @@ apb1: bus@50400000 {
#address-cells = <1>;
#size-cells = <1>;
compatible = "simple-pm-bus";
- ranges;
+ ranges = <0x50400000 0x50400000 0x40100>;
clocks = <&sysclk K210_CLK_APB1>;

wdt0: watchdog@50400000 {
@@ -437,7 +437,7 @@ apb2: bus@52000000 {
#address-cells = <1>;
#size-cells = <1>;
compatible = "simple-pm-bus";
- ranges;
+ ranges = <0x52000000 0x52000000 0x2000200>;
clocks = <&sysclk K210_CLK_APB2>;

spi0: spi@52000000 {
--
2.37.0

2022-07-05 22:04:40

by Conor Dooley

[permalink] [raw]
Subject: [PATCH v5 01/13] dt-bindings: display: convert ilitek,ili9341.txt to dt-schema

From: Conor Dooley <[email protected]>

A dt-schema binding for the Ilitek ili9341 was created as
panel/ilitek,ili9341.yaml but the txt binding was ignored in the
process. Move the remaining items in the txt binding to the yaml one &
delete it.

The example in the txt binding has a spi-max-frequency which disagrees
with the yaml replacement (and its own documentation) so change that to
conform with the binding. There are no users in tree of the Adafruit
yx240qv29 to check against.

Link: https://cdn-learn.adafruit.com/assets/assets/000/046/879/original/SPEC-YX240QV29-T_Rev.A__1_.pdf
Reviewed-by: Rob Herring <[email protected]>
Signed-off-by: Conor Dooley <[email protected]>
---
.../bindings/display/ilitek,ili9341.txt | 27 -----------
.../display/panel/ilitek,ili9341.yaml | 48 +++++++++++++------
2 files changed, 34 insertions(+), 41 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/display/ilitek,ili9341.txt

diff --git a/Documentation/devicetree/bindings/display/ilitek,ili9341.txt b/Documentation/devicetree/bindings/display/ilitek,ili9341.txt
deleted file mode 100644
index 169b32e4ee4e..000000000000
--- a/Documentation/devicetree/bindings/display/ilitek,ili9341.txt
+++ /dev/null
@@ -1,27 +0,0 @@
-Ilitek ILI9341 display panels
-
-This binding is for display panels using an Ilitek ILI9341 controller in SPI
-mode.
-
-Required properties:
-- compatible: "adafruit,yx240qv29", "ilitek,ili9341"
-- dc-gpios: D/C pin
-- reset-gpios: Reset pin
-
-The node for this driver must be a child node of a SPI controller, hence
-all mandatory properties described in ../spi/spi-bus.txt must be specified.
-
-Optional properties:
-- rotation: panel rotation in degrees counter clockwise (0,90,180,270)
-- backlight: phandle of the backlight device attached to the panel
-
-Example:
- display@0{
- compatible = "adafruit,yx240qv29", "ilitek,ili9341";
- reg = <0>;
- spi-max-frequency = <32000000>;
- dc-gpios = <&gpio0 9 GPIO_ACTIVE_HIGH>;
- reset-gpios = <&gpio0 8 GPIO_ACTIVE_HIGH>;
- rotation = <270>;
- backlight = <&backlight>;
- };
diff --git a/Documentation/devicetree/bindings/display/panel/ilitek,ili9341.yaml b/Documentation/devicetree/bindings/display/panel/ilitek,ili9341.yaml
index 6058948a9764..c5571391ca28 100644
--- a/Documentation/devicetree/bindings/display/panel/ilitek,ili9341.yaml
+++ b/Documentation/devicetree/bindings/display/panel/ilitek,ili9341.yaml
@@ -21,6 +21,7 @@ properties:
compatible:
items:
- enum:
+ - adafruit,yx240qv29
# ili9341 240*320 Color on stm32f429-disco board
- st,sf-tc240t-9370-t
- const: ilitek,ili9341
@@ -47,31 +48,50 @@ properties:
vddi-led-supply:
description: Voltage supply for the LED driver (1.65 .. 3.3 V)

-additionalProperties: false
+unevaluatedProperties: false

required:
- compatible
- reg
- dc-gpios
- - port
+
+if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - st,sf-tc240t-9370-t
+then:
+ required:
+ - port

examples:
- |+
+ #include <dt-bindings/gpio/gpio.h>
spi {
#address-cells = <1>;
#size-cells = <0>;
panel: display@0 {
- compatible = "st,sf-tc240t-9370-t",
- "ilitek,ili9341";
- reg = <0>;
- spi-3wire;
- spi-max-frequency = <10000000>;
- dc-gpios = <&gpiod 13 0>;
- port {
- panel_in: endpoint {
- remote-endpoint = <&display_out>;
- };
- };
- };
+ compatible = "st,sf-tc240t-9370-t",
+ "ilitek,ili9341";
+ reg = <0>;
+ spi-3wire;
+ spi-max-frequency = <10000000>;
+ dc-gpios = <&gpiod 13 0>;
+ port {
+ panel_in: endpoint {
+ remote-endpoint = <&display_out>;
+ };
+ };
+ };
+ display@1{
+ compatible = "adafruit,yx240qv29", "ilitek,ili9341";
+ reg = <1>;
+ spi-max-frequency = <10000000>;
+ dc-gpios = <&gpio0 9 GPIO_ACTIVE_HIGH>;
+ reset-gpios = <&gpio0 8 GPIO_ACTIVE_HIGH>;
+ rotation = <270>;
+ backlight = <&backlight>;
};
+ };
...
--
2.37.0

2022-07-05 22:17:11

by Conor Dooley

[permalink] [raw]
Subject: [PATCH v5 05/13] riscv: dts: canaan: fix the k210's memory node

From: Conor Dooley <[email protected]>

The k210 U-Boot port has been using the clocks defined in the
devicetree to bring up the board's SRAM, but this violates the
dt-schema. As such, move the clocks to a dedicated node with
the same compatible string. The regs property does not fit in
either node, so is replaced by comments.

Tested-by: Niklas Cassel <[email protected]>
Signed-off-by: Conor Dooley <[email protected]>
---
arch/riscv/boot/dts/canaan/k210.dtsi | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/arch/riscv/boot/dts/canaan/k210.dtsi b/arch/riscv/boot/dts/canaan/k210.dtsi
index 44d338514761..cd4eae82d8b2 100644
--- a/arch/riscv/boot/dts/canaan/k210.dtsi
+++ b/arch/riscv/boot/dts/canaan/k210.dtsi
@@ -69,11 +69,13 @@ cpu1_intc: interrupt-controller {

sram: memory@80000000 {
device_type = "memory";
+ reg = <0x80000000 0x400000>, /* sram0 4 MiB */
+ <0x80400000 0x200000>, /* sram1 2 MiB */
+ <0x80600000 0x200000>; /* aisram 2 MiB */
+ };
+
+ sram_controller: memory-controller {
compatible = "canaan,k210-sram";
- reg = <0x80000000 0x400000>,
- <0x80400000 0x200000>,
- <0x80600000 0x200000>;
- reg-names = "sram0", "sram1", "aisram";
clocks = <&sysclk K210_CLK_SRAM0>,
<&sysclk K210_CLK_SRAM1>,
<&sysclk K210_CLK_AI>;
--
2.37.0

2022-07-06 06:35:59

by Vinod Koul

[permalink] [raw]
Subject: Re: [PATCH v5 03/13] dt-bindings: dma: dw-axi-dmac: extend the number of interrupts

On 05-07-22, 22:52, Conor Dooley wrote:
> From: Conor Dooley <[email protected]>
>
> The Canaan k210 apparently has a Sysnopsys Designware AXI DMA
> controller, but according to the documentation & devicetree it has 6
> interrupts rather than the standard one. Support the 6 interrupt
> configuration by unconditionally extending the binding to a maximum of
> 8 per-channel interrupts thereby matching the number of possible
> channels.

Applied, thanks

--
~Vinod

2022-07-06 08:24:00

by Geert Uytterhoeven

[permalink] [raw]
Subject: Re: [PATCH v5 00/13] Canaan devicetree fixes

Hi Conor,

On Tue, Jul 5, 2022 at 11:52 PM Conor Dooley <[email protected]> wrote:
> This series should rid us of dtbs_check errors for the RISC-V Canaan k210
> based boards. To make keeping it that way a little easier, I changed the
> Canaan devicetree Makefile so that it would build all of the devicetrees
> in the directory if SOC_CANAAN.
>
> I *DO NOT* have any Canaan hardware so I have not tested any of this in
> action. Since I sent v1, I tried to buy some since it's cheap - but could
> out of the limited stockists none seemed to want to deliver to Ireland :(
> I based the series on next-20220617.

Boots fine on SiPEED MAiX BiT, so
Tested-by: Geert Uytterhoeven <[email protected]>

Gr{oetje,eeting}s,

Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- [email protected]

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds

2022-07-06 08:33:46

by Geert Uytterhoeven

[permalink] [raw]
Subject: Re: [PATCH v5 00/13] Canaan devicetree fixes

Hi Conor,

On Tue, Jul 5, 2022 at 11:52 PM Conor Dooley <[email protected]> wrote:
> I *DO NOT* have any Canaan hardware so I have not tested any of this in
> action. Since I sent v1, I tried to buy some since it's cheap - but could
> out of the limited stockists none seemed to want to deliver to Ireland :(
> I based the series on next-20220617.

Digi-Key does not want to ship to IRL?
The plain MAiX BiT is out-of-stock, but the kit incl. a display is
available (97 in stock).

Gr{oetje,eeting}s,

Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- [email protected]

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds

2022-07-06 12:04:09

by Damien Le Moal

[permalink] [raw]
Subject: Re: [PATCH v5 00/13] Canaan devicetree fixes

On 7/6/22 17:03, Geert Uytterhoeven wrote:
> Hi Conor,
>
> On Tue, Jul 5, 2022 at 11:52 PM Conor Dooley <[email protected]> wrote:
>> I *DO NOT* have any Canaan hardware so I have not tested any of this in
>> action. Since I sent v1, I tried to buy some since it's cheap - but could
>> out of the limited stockists none seemed to want to deliver to Ireland :(
>> I based the series on next-20220617.
>
> Digi-Key does not want to ship to IRL?
> The plain MAiX BiT is out-of-stock, but the kit incl. a display is
> available (97 in stock).

Seedstudio is out of stock on the MAIX bit, but they have maixduino, which
is the same, almost (pin wiring differs, everything else is the same).

https://www.seeedstudio.com/Sipeed-Maixduino-Kit-for-RISC-V-AI-IoT-p-4047.html

And you can still find plenty of MAIX bit on Aliexpress too.

>
> Gr{oetje,eeting}s,
>
> Geert
>
> --
> Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- [email protected]
>
> In personal conversations with technical people, I call myself a hacker. But
> when I'm talking to journalists I just say "programmer" or something like that.
> -- Linus Torvalds
>
> _______________________________________________
> linux-riscv mailing list
> [email protected]
> http://lists.infradead.org/mailman/listinfo/linux-riscv


--
Damien Le Moal
Western Digital Research

2022-07-06 14:59:31

by Rob Herring

[permalink] [raw]
Subject: Re: [PATCH v5 04/13] dt-bindings: memory-controllers: add canaan k210 sram controller

On Tue, 05 Jul 2022 22:52:05 +0100, Conor Dooley wrote:
> From: Conor Dooley <[email protected]>
>
> The k210 U-Boot port has been using the clocks defined in the
> devicetree to bring up the board's SRAM, but this violates the
> dt-schema. As such, move the clocks to a dedicated node with
> the same compatible string & document it.
>
> Signed-off-by: Conor Dooley <[email protected]>
> ---
> .../memory-controllers/canaan,k210-sram.yaml | 52 +++++++++++++++++++
> 1 file changed, 52 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/memory-controllers/canaan,k210-sram.yaml
>

Reviewed-by: Rob Herring <[email protected]>

2022-07-10 23:49:03

by Damien Le Moal

[permalink] [raw]
Subject: Re: [PATCH v5 04/13] dt-bindings: memory-controllers: add canaan k210 sram controller

On 7/11/22 04:39, [email protected] wrote:
> Damien, Krzysztof,
>
> I know this particular version has not been posted for all that
> long, but this binding is (functionally) unchanged for a few
> versions now. Are you happy with this approach Damien?
> U-Boot only cares about the compatible & the clocks property,
> not the regs etc.
>
> I (lazily) tested it in U-Boot with the following diff:

If both the kernel and u-boot still work as expected with this change, I
am OK with it.

>
> diff --git a/arch/riscv/dts/k210.dtsi b/arch/riscv/dts/k210.dtsi
> index 3cc8379133..314db88340 100644
> --- a/arch/riscv/dts/k210.dtsi
> +++ b/arch/riscv/dts/k210.dtsi
> @@ -82,11 +82,14 @@
>
> sram: memory@80000000 {
> device_type = "memory";
> + reg = <0x80000000 0x400000>, /* sram0 4 MiB */
> + <0x80400000 0x200000>, /* sram1 2 MiB */
> + <0x80600000 0x200000>; /* aisram 2 MiB */
> + u-boot,dm-pre-reloc;
> + };
> +
> + sram_controller: memory-controller {
> compatible = "canaan,k210-sram";
> - reg = <0x80000000 0x400000>,
> - <0x80400000 0x200000>,
> - <0x80600000 0x200000>;
> - reg-names = "sram0", "sram1", "aisram";
> clocks = <&sysclk K210_CLK_SRAM0>,
> <&sysclk K210_CLK_SRAM1>,
> <&sysclk K210_CLK_AI>;
>
> If so, could you queue this for 5.20 please Krzysztof, unless
> you've got concerns about it?
>
> Thanks,
> Conor.
>
> On 05/07/2022 22:52, Conor Dooley wrote:
>> EXTERNAL EMAIL: Do not click links or open attachments unless you know the content is safe
>>
>> From: Conor Dooley <[email protected]>
>>
>> The k210 U-Boot port has been using the clocks defined in the
>> devicetree to bring up the board's SRAM, but this violates the
>> dt-schema. As such, move the clocks to a dedicated node with
>> the same compatible string & document it.
>>
>> Signed-off-by: Conor Dooley <[email protected]>
>> ---
>> .../memory-controllers/canaan,k210-sram.yaml | 52 +++++++++++++++++++
>> 1 file changed, 52 insertions(+)
>> create mode 100644 Documentation/devicetree/bindings/memory-controllers/canaan,k210-sram.yaml
>>
>> diff --git a/Documentation/devicetree/bindings/memory-controllers/canaan,k210-sram.yaml b/Documentation/devicetree/bindings/memory-controllers/canaan,k210-sram.yaml
>> new file mode 100644
>> index 000000000000..f81fb866e319
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/memory-controllers/canaan,k210-sram.yaml
>> @@ -0,0 +1,52 @@
>> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
>> +%YAML 1.2
>> +---
>> +$id: http://devicetree.org/schemas/memory-controllers/canaan,k210-sram.yaml#
>> +$schema: http://devicetree.org/meta-schemas/core.yaml#
>> +
>> +title: Canaan K210 SRAM memory controller
>> +
>> +description:
>> + The Canaan K210 SRAM memory controller is responsible for the system's 8 MiB
>> + of SRAM. The controller is initialised by the bootloader, which configures
>> + its clocks, before OS bringup.
>> +
>> +maintainers:
>> + - Conor Dooley <[email protected]>
>> +
>> +properties:
>> + compatible:
>> + enum:
>> + - canaan,k210-sram
>> +
>> + clocks:
>> + minItems: 1
>> + items:
>> + - description: sram0 clock
>> + - description: sram1 clock
>> + - description: aisram clock
>> +
>> + clock-names:
>> + minItems: 1
>> + items:
>> + - const: sram0
>> + - const: sram1
>> + - const: aisram
>> +
>> +required:
>> + - compatible
>> + - clocks
>> + - clock-names
>> +
>> +additionalProperties: false
>> +
>> +examples:
>> + - |
>> + #include <dt-bindings/clock/k210-clk.h>
>> + memory-controller {
>> + compatible = "canaan,k210-sram";
>> + clocks = <&sysclk K210_CLK_SRAM0>,
>> + <&sysclk K210_CLK_SRAM1>,
>> + <&sysclk K210_CLK_AI>;
>> + clock-names = "sram0", "sram1", "aisram";
>> + };
>> --
>> 2.37.0
>>
>


--
Damien Le Moal
Western Digital Research

2022-07-12 16:26:52

by Krzysztof Kozlowski

[permalink] [raw]
Subject: Re: [PATCH v5 04/13] dt-bindings: memory-controllers: add canaan k210 sram controller

On 12/07/2022 17:54, [email protected] wrote:
> On 11/07/2022 00:21, Damien Le Moal wrote:
>> On 7/11/22 04:39, [email protected] wrote:
>>> Damien, Krzysztof,
>>>
>>> I know this particular version has not been posted for all that
>>> long, but this binding is (functionally) unchanged for a few
>>> versions now. Are you happy with this approach Damien?
>>> U-Boot only cares about the compatible & the clocks property,
>>> not the regs etc.
>>>
>>> I (lazily) tested it in U-Boot with the following diff:
>>
>> If both the kernel and u-boot still work as expected with this change, I
>> am OK with it.
>
> It's all yours so Krzysztof :)

It's too late in the cycle for me to pick it up. If you have alternate
tree to take it through, go ahead with:

Reviewed-by: Krzysztof Kozlowski <[email protected]>

Otherwise, I'll take it after the merge window of v5.20, so in ~1 month
according to crystal ball.

Best regards,
Krzysztof

2022-07-14 22:12:01

by Palmer Dabbelt

[permalink] [raw]
Subject: Re: [PATCH v5 00/13] Canaan devicetree fixes

On Tue, 05 Jul 2022 14:52:01 PDT (-0700), [email protected] wrote:
> From: Conor Dooley <[email protected]>
>
> Hey all,
> This series should rid us of dtbs_check errors for the RISC-V Canaan k210
> based boards. To make keeping it that way a little easier, I changed the
> Canaan devicetree Makefile so that it would build all of the devicetrees
> in the directory if SOC_CANAAN.
>
> I *DO NOT* have any Canaan hardware so I have not tested any of this in
> action. Since I sent v1, I tried to buy some since it's cheap - but could
> out of the limited stockists none seemed to want to deliver to Ireland :(
> I based the series on next-20220617.
>
> Thanks,
> Conor.
>
> Changes since v4:
> - add Rob's tags from v3
> - sram: rephrase the binding description
> - ASoC: dropped the applied binding
>
> Changes since v3:
> - dts: drop the bogus "regs" property pointed out by Niklas
> - dma/timer: add Serge's reviews (and expand on the dma interrupt
> description)
> - dts: add Niklas' T-b where I felt it was suitable. lmk if you think it
> applies more broadly
> - spi: drop the applied spi dt-binding change. Thanks Mark.
>
> Changes since v2:
> - i2s: added clocks maxItems
> - dma: unconditionally extended the interrupts & dropped canaan
> compatible
> - timer: as per Sergey, split the timer dts nodes in 2 & drop the
> binding patch
> - ili9341: add a canaan specific compatible to the binding and dts
>
> Changes since v1:
> - I added a new dt node & compatible for the SRAM memory controller due
> Damien's wish to preserve the inter-op with U-Boot.
> - The dw-apb-ssi binding now uses the default rx/tx widths
> - A new patch fixes bus {ranges,reg} warnings
> - Rearranged the patches in a slightly more logical order
>
> Conor Dooley (13):
> dt-bindings: display: convert ilitek,ili9341.txt to dt-schema
> dt-bindings: display: ili9341: document canaan kd233's lcd
> dt-bindings: dma: dw-axi-dmac: extend the number of interrupts
> dt-bindings: memory-controllers: add canaan k210 sram controller
> riscv: dts: canaan: fix the k210's memory node
> riscv: dts: canaan: fix the k210's timer nodes
> riscv: dts: canaan: fix mmc node names
> riscv: dts: canaan: fix kd233 display spi frequency
> riscv: dts: canaan: use custom compatible for k210 i2s
> riscv: dts: canaan: remove spi-max-frequency from controllers
> riscv: dts: canaan: fix bus {ranges,reg} warnings
> riscv: dts: canaan: add specific compatible for kd233's LCD
> riscv: dts: canaan: build all devicetress if SOC_CANAAN
>
> .../bindings/display/ilitek,ili9341.txt | 27 -------
> .../display/panel/ilitek,ili9341.yaml | 49 +++++++++----
> .../bindings/dma/snps,dw-axi-dmac.yaml | 7 +-
> .../memory-controllers/canaan,k210-sram.yaml | 52 +++++++++++++
> arch/riscv/boot/dts/canaan/Makefile | 10 ++-
> arch/riscv/boot/dts/canaan/canaan_kd233.dts | 6 +-
> arch/riscv/boot/dts/canaan/k210.dtsi | 73 +++++++++++++------
> .../riscv/boot/dts/canaan/sipeed_maix_bit.dts | 2 +-
> .../boot/dts/canaan/sipeed_maix_dock.dts | 2 +-
> arch/riscv/boot/dts/canaan/sipeed_maix_go.dts | 2 +-
> .../boot/dts/canaan/sipeed_maixduino.dts | 2 +-
> 11 files changed, 159 insertions(+), 73 deletions(-)
> delete mode 100644 Documentation/devicetree/bindings/display/ilitek,ili9341.txt
> create mode 100644 Documentation/devicetree/bindings/memory-controllers/canaan,k210-sram.yaml

I'm trying to sort out how to merge this one. I'm not opposed to taking
it through the RISC-V tree as Rob's reviewed/acked the bindings, but
just figured I'd say something before putting anything on for-next to
try and minimize confusion.

Unless I'm missing something it's just patch 3 that's been taken so far,
via Vinod's tree. I've dropped that one and put the rest on
palmer/riscv-canaan_dt_schema, if that looks good then I'll take it into
riscv/for-next when this loops back to the top of my queue.

Thanks!

2022-07-14 22:25:55

by Conor Dooley

[permalink] [raw]
Subject: Re: [PATCH v5 00/13] Canaan devicetree fixes



On 14/07/2022 23:04, Palmer Dabbelt wrote:
> On Tue, 05 Jul 2022 14:52:01 PDT (-0700), [email protected] wrote:
>> From: Conor Dooley <[email protected]>
>>
>> Hey all,
>> This series should rid us of dtbs_check errors for the RISC-V Canaan k210
>> based boards. To make keeping it that way a little easier, I changed the
>> Canaan devicetree Makefile so that it would build all of the devicetrees
>> in the directory if SOC_CANAAN.
>>
>> I *DO NOT* have any Canaan hardware so I have not tested any of this in
>> action. Since I sent v1, I tried to buy some since it's cheap - but could
>> out of the limited stockists none seemed to want to deliver to Ireland :(
>> I based the series on next-20220617.
>>
>> Thanks,
>> Conor.
>>
>> Changes since v4:
>> - add Rob's tags from v3
>> - sram: rephrase the binding description
>> - ASoC: dropped the applied binding
>>
>> Changes since v3:
>> - dts: drop the bogus "regs" property pointed out by Niklas
>> - dma/timer: add Serge's reviews (and expand on the dma interrupt
>>   description)
>> - dts: add Niklas' T-b where I felt it was suitable. lmk if you think it
>>   applies more broadly
>> - spi: drop the applied spi dt-binding change. Thanks Mark.
>>
>> Changes since v2:
>> - i2s: added clocks maxItems
>> - dma: unconditionally extended the interrupts & dropped canaan
>>   compatible
>> - timer: as per Sergey, split the timer dts nodes in 2 & drop the
>>   binding patch
>> - ili9341: add a canaan specific compatible to the binding and dts
>>
>> Changes since v1:
>> - I added a new dt node & compatible for the SRAM memory controller due
>>   Damien's wish to preserve the inter-op with U-Boot.
>> - The dw-apb-ssi binding now uses the default rx/tx widths
>> - A new patch fixes bus {ranges,reg} warnings
>> - Rearranged the patches in a slightly more logical order
>>
>> Conor Dooley (13):
>>   dt-bindings: display: convert ilitek,ili9341.txt to dt-schema
>>   dt-bindings: display: ili9341: document canaan kd233's lcd
>>   dt-bindings: dma: dw-axi-dmac: extend the number of interrupts
>>   dt-bindings: memory-controllers: add canaan k210 sram controller
>>   riscv: dts: canaan: fix the k210's memory node
>>   riscv: dts: canaan: fix the k210's timer nodes
>>   riscv: dts: canaan: fix mmc node names
>>   riscv: dts: canaan: fix kd233 display spi frequency
>>   riscv: dts: canaan: use custom compatible for k210 i2s
>>   riscv: dts: canaan: remove spi-max-frequency from controllers
>>   riscv: dts: canaan: fix bus {ranges,reg} warnings
>>   riscv: dts: canaan: add specific compatible for kd233's LCD
>>   riscv: dts: canaan: build all devicetress if SOC_CANAAN
>>
>>  .../bindings/display/ilitek,ili9341.txt       | 27 -------
>>  .../display/panel/ilitek,ili9341.yaml         | 49 +++++++++----
>>  .../bindings/dma/snps,dw-axi-dmac.yaml        |  7 +-
>>  .../memory-controllers/canaan,k210-sram.yaml  | 52 +++++++++++++
>>  arch/riscv/boot/dts/canaan/Makefile           | 10 ++-
>>  arch/riscv/boot/dts/canaan/canaan_kd233.dts   |  6 +-
>>  arch/riscv/boot/dts/canaan/k210.dtsi          | 73 +++++++++++++------
>>  .../riscv/boot/dts/canaan/sipeed_maix_bit.dts |  2 +-
>>  .../boot/dts/canaan/sipeed_maix_dock.dts      |  2 +-
>>  arch/riscv/boot/dts/canaan/sipeed_maix_go.dts |  2 +-
>>  .../boot/dts/canaan/sipeed_maixduino.dts      |  2 +-
>>  11 files changed, 159 insertions(+), 73 deletions(-)
>>  delete mode 100644 Documentation/devicetree/bindings/display/ilitek,ili9341.txt
>>  create mode 100644 Documentation/devicetree/bindings/memory-controllers/canaan,k210-sram.yaml
>
> I'm trying to sort out how to merge this one.  I'm not opposed to taking it through the RISC-V tree as Rob's reviewed/acked the bindings, but just figured I'd say something before putting anything on for-next to try and minimize confusion.
>
> Unless I'm missing something it's just patch 3 that's been taken so far, via Vinod's tree.  I've dropped that one and put the rest on palmer/riscv-canaan_dt_schema, if that looks good then I'll take it into riscv/for-next when this loops back to the top of my queue.
>
> Thanks!

Patches 1 & 2 never got review from the DRM side and patch 12
depends on those. If it comes to it, you could drop those three
(and patch 3 that Vinod took). The only other one is patch 4,
which has Krzysztof's ack as memory-controller maintainer, so
that one should be okay.
Thanks,
Conor.

2022-07-18 15:27:46

by Ben Dooks

[permalink] [raw]
Subject: Re: [PATCH v5 03/13] dt-bindings: dma: dw-axi-dmac: extend the number of interrupts

On 05/07/2022 22:52, Conor Dooley wrote:
> From: Conor Dooley <[email protected]>
>
> The Canaan k210 apparently has a Sysnopsys Designware AXI DMA
> controller, but according to the documentation & devicetree it has 6
> interrupts rather than the standard one. Support the 6 interrupt
> configuration by unconditionally extending the binding to a maximum of
> 8 per-channel interrupts thereby matching the number of possible
> channels.

I think you can still configure it to produce a single interrupt
even if there are per-channel interrupts available. This is from
my reading of the driver a little while ago so may not be totally
correct now.

Having per-channel irqs might be useful in the future, but as above
I think it'll require the driver to be updated to do it (and possibly
some sort of detection)


> Link: https://canaan-creative.com/wp-content/uploads/2020/03/kendryte_standalone_programming_guide_20190311144158_en.pdf #Page 51
> Reviewed-by: Serge Semin <[email protected]>
> Reviewed-by: Rob Herring <[email protected]>
> Signed-off-by: Conor Dooley <[email protected]>
> ---
> .../devicetree/bindings/dma/snps,dw-axi-dmac.yaml | 7 ++++++-
> 1 file changed, 6 insertions(+), 1 deletion(-)
>
> diff --git a/Documentation/devicetree/bindings/dma/snps,dw-axi-dmac.yaml b/Documentation/devicetree/bindings/dma/snps,dw-axi-dmac.yaml
> index 4324a94b26b2..67aa7bb6d36a 100644
> --- a/Documentation/devicetree/bindings/dma/snps,dw-axi-dmac.yaml
> +++ b/Documentation/devicetree/bindings/dma/snps,dw-axi-dmac.yaml
> @@ -34,7 +34,12 @@ properties:
> - const: axidma_apb_regs
>
> interrupts:
> - maxItems: 1
> + description:
> + If the IP-core synthesis parameter DMAX_INTR_IO_TYPE is set to 1, this
> + will be per-channel interrupts. Otherwise, this is a single combined IRQ
> + for all channels.
> + minItems: 1
> + maxItems: 8
>
> clocks:
> items:


--
Ben Dooks http://www.codethink.co.uk/
Senior Engineer Codethink - Providing Genius

https://www.codethink.co.uk/privacy.html

2022-07-18 15:28:18

by Conor Dooley

[permalink] [raw]
Subject: Re: [PATCH v5 03/13] dt-bindings: dma: dw-axi-dmac: extend the number of interrupts

On 18/07/2022 16:12, Ben Dooks wrote:
> On 05/07/2022 22:52, Conor Dooley wrote:
>> From: Conor Dooley <[email protected]>
>>
>> The Canaan k210 apparently has a Sysnopsys Designware AXI DMA
>> controller, but according to the documentation & devicetree it has 6
>> interrupts rather than the standard one. Support the 6 interrupt
>> configuration by unconditionally extending the binding to a maximum of
>> 8 per-channel interrupts thereby matching the number of possible
>> channels.
>
> I think you can still configure it to produce a single interrupt
> even if there are per-channel interrupts available. This is from
> my reading of the driver a little while ago so may not be totally
> correct now.
>
> Having per-channel irqs might be useful in the future, but as above
> I think it'll require the driver to be updated to do it (and possibly
> some sort of detection)
>

Yah, driver would need an update. But happily that does not matter for
the validity of the binding.

2022-08-05 18:00:11

by Conor Dooley

[permalink] [raw]
Subject: Re: [PATCH v5 00/13] Canaan devicetree fixes

On 14/07/2022 23:11, Conor Dooley - M52691 wrote:
> On 14/07/2022 23:04, Palmer Dabbelt wrote:
>> I'm trying to sort out how to merge this one.  I'm not opposed to taking it through the RISC-V tree as Rob's reviewed/acked the bindings, but just figured I'd say something before putting anything on for-next to try and minimize confusion.
>>
>> Unless I'm missing something it's just patch 3 that's been taken so far, via Vinod's tree.  I've dropped that one and put the rest on palmer/riscv-canaan_dt_schema, if that looks good then I'll take it into riscv/for-next when this loops back to the top of my queue.
>>
>> Thanks!
>
> Patches 1 & 2 never got review from the DRM side and patch 12
> depends on those. If it comes to it, you could drop those three
> (and patch 3 that Vinod took). The only other one is patch 4,
> which has Krzysztof's ack as memory-controller maintainer, so
> that one should be okay.

Hey Palmer,
These fixes have been sitting on palmer/riscv-canaan_dt_schema for
a few weeks now, without an autobuilder complaint etc. Could you
move it onto for-next?
Would be nice to clear these up for 6.0 :)
Thanks,
Conor.

2022-08-10 22:09:07

by Palmer Dabbelt

[permalink] [raw]
Subject: Re: [PATCH v5 00/13] Canaan devicetree fixes

On Fri, 05 Aug 2022 10:51:00 PDT (-0700), [email protected] wrote:
> On 14/07/2022 23:11, Conor Dooley - M52691 wrote:
>> On 14/07/2022 23:04, Palmer Dabbelt wrote:
>>> I'm trying to sort out how to merge this one.  I'm not opposed to taking it through the RISC-V tree as Rob's reviewed/acked the bindings, but just figured I'd say something before putting anything on for-next to try and minimize confusion.
>>>
>>> Unless I'm missing something it's just patch 3 that's been taken so far, via Vinod's tree.  I've dropped that one and put the rest on palmer/riscv-canaan_dt_schema, if that looks good then I'll take it into riscv/for-next when this loops back to the top of my queue.
>>>
>>> Thanks!
>>
>> Patches 1 & 2 never got review from the DRM side and patch 12
>> depends on those. If it comes to it, you could drop those three
>> (and patch 3 that Vinod took). The only other one is patch 4,
>> which has Krzysztof's ack as memory-controller maintainer, so
>> that one should be okay.
>
> Hey Palmer,
> These fixes have been sitting on palmer/riscv-canaan_dt_schema for
> a few weeks now, without an autobuilder complaint etc. Could you
> move it onto for-next?

These are on for-next.

2022-08-11 07:08:49

by Conor Dooley

[permalink] [raw]
Subject: Re: [PATCH v5 00/13] Canaan devicetree fixes

On 10/08/2022 23:01, Palmer Dabbelt wrote:
> EXTERNAL EMAIL: Do not click links or open attachments unless you know the content is safe
>
> On Fri, 05 Aug 2022 10:51:00 PDT (-0700), [email protected] wrote:
>> On 14/07/2022 23:11, Conor Dooley - M52691 wrote:
>>> On 14/07/2022 23:04, Palmer Dabbelt wrote:
>>>> I'm trying to sort out how to merge this one.  I'm not opposed to taking it through the RISC-V tree as Rob's reviewed/acked the bindings, but just figured I'd say something before putting anything on for-next to try and minimize confusion.
>>>>
>>>> Unless I'm missing something it's just patch 3 that's been taken so far, via Vinod's tree.  I've dropped that one and put the rest on palmer/riscv-canaan_dt_schema, if that looks good then I'll take it into riscv/for-next when this loops back to the top of my queue.
>>>>
>>>> Thanks!
>>>
>>> Patches 1 & 2 never got review from the DRM side and patch 12
>>> depends on those. If it comes to it, you could drop those three
>>> (and patch 3 that Vinod took). The only other one is patch 4,
>>> which has Krzysztof's ack as memory-controller maintainer, so
>>> that one should be okay.
>>
>> Hey Palmer,
>> These fixes have been sitting on palmer/riscv-canaan_dt_schema for
>> a few weeks now, without an autobuilder complaint etc. Could you
>> move it onto for-next?
>
> These are on for-next.

Sweet, nearly clear of dtbs_check problems now :)
Thanks!

2022-08-16 10:48:05

by Krzysztof Kozlowski

[permalink] [raw]
Subject: Re: [PATCH v5 04/13] dt-bindings: memory-controllers: add canaan k210 sram controller

On 06/07/2022 00:52, Conor Dooley wrote:
> From: Conor Dooley <[email protected]>
>
> The k210 U-Boot port has been using the clocks defined in the
> devicetree to bring up the board's SRAM, but this violates the
> dt-schema. As such, move the clocks to a dedicated node with
> the same compatible string & document it.
>
> Signed-off-by: Conor Dooley <[email protected]>
> ---

Does not apply to my tree. Please rebase and resend.

Best regards,
Krzysztof

2022-08-16 11:28:53

by Conor Dooley

[permalink] [raw]
Subject: Re: [PATCH v5 04/13] dt-bindings: memory-controllers: add canaan k210 sram controller

On 16/08/2022 10:27, Krzysztof Kozlowski wrote:
> EXTERNAL EMAIL: Do not click links or open attachments unless you know the content is safe
>
> On 06/07/2022 00:52, Conor Dooley wrote:
>> From: Conor Dooley <[email protected]>
>>
>> The k210 U-Boot port has been using the clocks defined in the
>> devicetree to bring up the board's SRAM, but this violates the
>> dt-schema. As such, move the clocks to a dedicated node with
>> the same compatible string & document it.
>>
>> Signed-off-by: Conor Dooley <[email protected]>
>> ---
>
> Does not apply to my tree. Please rebase and resend.

Palmer took it with the rest of the canaan stuff as per:
https://lore.kernel.org/all/[email protected]/

It is now in v6.0-rc1:
commit 727b05e46cffd74adca96ca13e57352339875586
Author: Conor Dooley <[email protected]>
Date: Tue Jul 5 22:52:05 2022 +0100

dt-bindings: memory-controllers: add canaan k210 sram controller

The k210 U-Boot port has been using the clocks defined in the
devicetree to bring up the board's SRAM, but this violates the
dt-schema. As such, move the clocks to a dedicated node with
the same compatible string & document it.

Signed-off-by: Conor Dooley <[email protected]>
Reviewed-by: Rob Herring <[email protected]>
Reviewed-by: Krzysztof Kozlowski <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Palmer Dabbelt <[email protected]>