[PATCH AUTOSEL 5.4 01/24] ARM: dts: sun4i-a10: fix cpu_alert temperature

[PATCH AUTOSEL 5.4 01/24] ARM: dts: sun4i-a10: fix cpu_alert temperature

[Sasha Levin]

From: Clément Péron <peron.clem@gmail.com>

[ Upstream commit dea252fa41cd8ce332d148444e4799235a8a03ec ]

When running dtbs_check thermal_zone warn about the
temperature declared.

thermal-zones: cpu-thermal:trips:cpu-alert0:temperature:0:0: 850000 is greater than the maximum of 200000

It's indeed wrong the real value is 85°C and not 850°C.

Signed-off-by: Clément Péron <peron.clem@gmail.com>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://lore.kernel.org/r/20201003100332.431178-1-peron.clem@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/boot/dts/sun4i-a10.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/sun4i-a10.dtsi b/arch/arm/boot/dts/sun4i-a10.dtsi
index e0a9b371c248f..2265ca24c0c71 100644
--- a/arch/arm/boot/dts/sun4i-a10.dtsi
+++ b/arch/arm/boot/dts/sun4i-a10.dtsi
@@ -143,7 +143,7 @@ map0 {
 			trips {
 				cpu_alert0: cpu-alert0 {
 					/* milliCelsius */
-					temperature = <850000>;
+					temperature = <85000>;
 					hysteresis = <2000>;
 					type = "passive";
 				};
-- 
2.27.0


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[PATCH AUTOSEL 5.4 02/24] arm64: dts: meson-axg: add USB nodes

[Sasha Levin]

From: Neil Armstrong <narmstrong@baylibre.com>

[ Upstream commit 1b208bab34dc3f4ef8f408105017d4a7b72b2a2f ]

This adds the USB Glue node, with the USB2 & USB3 controllers along the single
USB2 PHY node.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Kevin Hilman <khilman@baylibre.com>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/boot/dts/amlogic/meson-axg.dtsi | 50 ++++++++++++++++++++++
 1 file changed, 50 insertions(+)

diff --git a/arch/arm64/boot/dts/amlogic/meson-axg.dtsi b/arch/arm64/boot/dts/amlogic/meson-axg.dtsi
index 502c4ac45c29e..af1c50428eb7e 100644
--- a/arch/arm64/boot/dts/amlogic/meson-axg.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-axg.dtsi
@@ -170,6 +170,46 @@ soc {
 		#size-cells = <2>;
 		ranges;
 
+		usb: usb@ffe09080 {
+			compatible = "amlogic,meson-axg-usb-ctrl";
+			reg = <0x0 0xffe09080 0x0 0x20>;
+			interrupts = <GIC_SPI 16 IRQ_TYPE_LEVEL_HIGH>;
+			#address-cells = <2>;
+			#size-cells = <2>;
+			ranges;
+
+			clocks = <&clkc CLKID_USB>, <&clkc CLKID_USB1_DDR_BRIDGE>;
+			clock-names = "usb_ctrl", "ddr";
+			resets = <&reset RESET_USB_OTG>;
+
+			dr_mode = "otg";
+
+			phys = <&usb2_phy1>;
+			phy-names = "usb2-phy1";
+
+			dwc2: usb@ff400000 {
+				compatible = "amlogic,meson-g12a-usb", "snps,dwc2";
+				reg = <0x0 0xff400000 0x0 0x40000>;
+				interrupts = <GIC_SPI 31 IRQ_TYPE_LEVEL_HIGH>;
+				clocks = <&clkc CLKID_USB1>;
+				clock-names = "otg";
+				phys = <&usb2_phy1>;
+				dr_mode = "peripheral";
+				g-rx-fifo-size = <192>;
+				g-np-tx-fifo-size = <128>;
+				g-tx-fifo-size = <128 128 16 16 16>;
+			};
+
+			dwc3: usb@ff500000 {
+				compatible = "snps,dwc3";
+				reg = <0x0 0xff500000 0x0 0x100000>;
+				interrupts = <GIC_SPI 30 IRQ_TYPE_LEVEL_HIGH>;
+				dr_mode = "host";
+				maximum-speed = "high-speed";
+				snps,dis_u2_susphy_quirk;
+			};
+		};
+
 		ethmac: ethernet@ff3f0000 {
 			compatible = "amlogic,meson-axg-dwmac",
 				     "snps,dwmac-3.70a",
@@ -1725,6 +1765,16 @@ sd_emmc_c: mmc@7000 {
 				clock-names = "core", "clkin0", "clkin1";
 				resets = <&reset RESET_SD_EMMC_C>;
 			};
+
+			usb2_phy1: phy@9020 {
+				compatible = "amlogic,meson-gxl-usb2-phy";
+				#phy-cells = <0>;
+				reg = <0x0 0x9020 0x0 0x20>;
+				clocks = <&clkc CLKID_USB>;
+				clock-names = "phy";
+				resets = <&reset RESET_USB_OTG>;
+				reset-names = "phy";
+			};
 		};
 
 		sram: sram@fffc0000 {
-- 
2.27.0


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Re: [PATCH AUTOSEL 5.4 02/24] arm64: dts: meson-axg: add USB nodes

[Neil Armstrong]

On 03/11/2020 02:19, Sasha Levin wrote:
> From: Neil Armstrong <narmstrong@baylibre.com>
> 
> [ Upstream commit 1b208bab34dc3f4ef8f408105017d4a7b72b2a2f ]
> 
> This adds the USB Glue node, with the USB2 & USB3 controllers along the single
> USB2 PHY node.
> 
> Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
> Reviewed-by: Kevin Hilman <khilman@baylibre.com>
> Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
> Signed-off-by: Kevin Hilman <khilman@baylibre.com>
> Signed-off-by: Sasha Levin <sashal@kernel.org>
> ---
>  arch/arm64/boot/dts/amlogic/meson-axg.dtsi | 50 ++++++++++++++++++++++
>  1 file changed, 50 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/amlogic/meson-axg.dtsi b/arch/arm64/boot/dts/amlogic/meson-axg.dtsi
> index 502c4ac45c29e..af1c50428eb7e 100644
> --- a/arch/arm64/boot/dts/amlogic/meson-axg.dtsi
> +++ b/arch/arm64/boot/dts/amlogic/meson-axg.dtsi
> @@ -170,6 +170,46 @@ soc {
>  		#size-cells = <2>;
>  		ranges;
>  
> +		usb: usb@ffe09080 {
> +			compatible = "amlogic,meson-axg-usb-ctrl";
> +			reg = <0x0 0xffe09080 0x0 0x20>;
> +			interrupts = <GIC_SPI 16 IRQ_TYPE_LEVEL_HIGH>;
> +			#address-cells = <2>;
> +			#size-cells = <2>;
> +			ranges;
> +
> +			clocks = <&clkc CLKID_USB>, <&clkc CLKID_USB1_DDR_BRIDGE>;
> +			clock-names = "usb_ctrl", "ddr";
> +			resets = <&reset RESET_USB_OTG>;
> +
> +			dr_mode = "otg";
> +
> +			phys = <&usb2_phy1>;
> +			phy-names = "usb2-phy1";
> +
> +			dwc2: usb@ff400000 {
> +				compatible = "amlogic,meson-g12a-usb", "snps,dwc2";
> +				reg = <0x0 0xff400000 0x0 0x40000>;
> +				interrupts = <GIC_SPI 31 IRQ_TYPE_LEVEL_HIGH>;
> +				clocks = <&clkc CLKID_USB1>;
> +				clock-names = "otg";
> +				phys = <&usb2_phy1>;
> +				dr_mode = "peripheral";
> +				g-rx-fifo-size = <192>;
> +				g-np-tx-fifo-size = <128>;
> +				g-tx-fifo-size = <128 128 16 16 16>;
> +			};
> +
> +			dwc3: usb@ff500000 {
> +				compatible = "snps,dwc3";
> +				reg = <0x0 0xff500000 0x0 0x100000>;
> +				interrupts = <GIC_SPI 30 IRQ_TYPE_LEVEL_HIGH>;
> +				dr_mode = "host";
> +				maximum-speed = "high-speed";
> +				snps,dis_u2_susphy_quirk;
> +			};
> +		};
> +
>  		ethmac: ethernet@ff3f0000 {
>  			compatible = "amlogic,meson-axg-dwmac",
>  				     "snps,dwmac-3.70a",
> @@ -1725,6 +1765,16 @@ sd_emmc_c: mmc@7000 {
>  				clock-names = "core", "clkin0", "clkin1";
>  				resets = <&reset RESET_SD_EMMC_C>;
>  			};
> +
> +			usb2_phy1: phy@9020 {
> +				compatible = "amlogic,meson-gxl-usb2-phy";
> +				#phy-cells = <0>;
> +				reg = <0x0 0x9020 0x0 0x20>;
> +				clocks = <&clkc CLKID_USB>;
> +				clock-names = "phy";
> +				resets = <&reset RESET_USB_OTG>;
> +				reset-names = "phy";
> +			};
>  		};
>  
>  		sram: sram@fffc0000 {
> 


Hi Sasha,

This needs also support in the dwc3-meson-g12a driver, you can drop it from backport.

Neil

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[PATCH AUTOSEL 5.4 03/24] arm64: dts: meson-axg-s400: enable USB OTG

[Sasha Levin]

From: Neil Armstrong <narmstrong@baylibre.com>

[ Upstream commit f450d2c219f6a6b79880c97bf910c3c72725eb70 ]

This enables USB OTG on the S400 board.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/boot/dts/amlogic/meson-axg-s400.dts | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/arm64/boot/dts/amlogic/meson-axg-s400.dts b/arch/arm64/boot/dts/amlogic/meson-axg-s400.dts
index 4cd2d59518228..de4b40d4f48c6 100644
--- a/arch/arm64/boot/dts/amlogic/meson-axg-s400.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-axg-s400.dts
@@ -584,3 +584,9 @@ &uart_AO {
 	pinctrl-0 = <&uart_ao_a_pins>;
 	pinctrl-names = "default";
 };
+
+&usb {
+	status = "okay";
+	dr_mode = "otg";
+	vbus-supply = <&usb_pwr>;
+};
-- 
2.27.0


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Re: [PATCH AUTOSEL 5.4 03/24] arm64: dts: meson-axg-s400: enable USB OTG

[Neil Armstrong]

On 03/11/2020 02:19, Sasha Levin wrote:
> From: Neil Armstrong <narmstrong@baylibre.com>
> 
> [ Upstream commit f450d2c219f6a6b79880c97bf910c3c72725eb70 ]
> 
> This enables USB OTG on the S400 board.
> 
> Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
> Reviewed-by: Kevin Hilman <khilman@baylibre.com>
> Signed-off-by: Kevin Hilman <khilman@baylibre.com>
> Signed-off-by: Sasha Levin <sashal@kernel.org>
> ---
>  arch/arm64/boot/dts/amlogic/meson-axg-s400.dts | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/amlogic/meson-axg-s400.dts b/arch/arm64/boot/dts/amlogic/meson-axg-s400.dts
> index 4cd2d59518228..de4b40d4f48c6 100644
> --- a/arch/arm64/boot/dts/amlogic/meson-axg-s400.dts
> +++ b/arch/arm64/boot/dts/amlogic/meson-axg-s400.dts
> @@ -584,3 +584,9 @@ &uart_AO {
>  	pinctrl-0 = <&uart_ao_a_pins>;
>  	pinctrl-names = "default";
>  };
> +
> +&usb {
> +	status = "okay";
> +	dr_mode = "otg";
> +	vbus-supply = <&usb_pwr>;
> +};
> 

Hi Sasha,

This needs also support in the dwc3-meson-g12a driver, you can drop it from backport.

Neil

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[PATCH AUTOSEL 5.4 04/24] arm64: dts: meson: add missing g12 rng clock

[Sasha Levin]

From: Scott K Logan <logans@cottsay.net>

[ Upstream commit a1afbbb0285797e01313779c71287d936d069245 ]

This adds the missing perpheral clock for the RNG for Amlogic G12. As
stated in amlogic,meson-rng.yaml, this isn't always necessary for the
RNG to function, but is better to have in case the clock is disabled for
some reason prior to loading.

Signed-off-by: Scott K Logan <logans@cottsay.net>
Suggested-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Link: https://lore.kernel.org/r/520a1a8ec7a958b3d918d89563ec7e93a4100a45.camel@cottsay.net
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi b/arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi
index 1234bc7974294..354ef2f3eac67 100644
--- a/arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi
@@ -167,6 +167,8 @@ apb_efuse: bus@30000 {
 				hwrng: rng@218 {
 					compatible = "amlogic,meson-rng";
 					reg = <0x0 0x218 0x0 0x4>;
+					clocks = <&clkc CLKID_RNG0>;
+					clock-names = "core";
 				};
 			};
 
-- 
2.27.0


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[PATCH AUTOSEL 5.4 05/24] arm64: dts: amlogic: meson-g12: use the G12A specific dwmac compatible

[Sasha Levin]

From: Martin Blumenstingl <martin.blumenstingl@googlemail.com>

[ Upstream commit 1fdc97ae450ede2b4911d6737a57e6fca63b5f4a ]

We have a dedicated "amlogic,meson-g12a-dwmac" compatible string for the
Ethernet controller since commit 3efdb92426bf4 ("dt-bindings: net:
dwmac-meson: Add a compatible string for G12A onwards").
Using the AXG compatible string worked fine so far because the
dwmac-meson8b driver doesn't handle the newly introduced register bits
for G12A. However, once that changes the driver must be probed with the
correct compatible string to manage these new register bits.

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Link: https://lore.kernel.org/r/20200925211743.537496-1-martin.blumenstingl@googlemail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi b/arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi
index 354ef2f3eac67..a25fe33baebc2 100644
--- a/arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi
@@ -96,7 +96,7 @@ soc {
 		ranges;
 
 		ethmac: ethernet@ff3f0000 {
-			compatible = "amlogic,meson-axg-dwmac",
+			compatible = "amlogic,meson-g12a-dwmac",
 				     "snps,dwmac-3.70a",
 				     "snps,dwmac";
 			reg = <0x0 0xff3f0000 0x0 0x10000>,
-- 
2.27.0


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Re: [PATCH AUTOSEL 5.4 05/24] arm64: dts: amlogic: meson-g12: use the G12A specific dwmac compatible

[Martin Blumenstingl]

Hi Sasha,

On Tue, Nov 3, 2020 at 2:20 AM Sasha Levin <sashal@kernel.org> wrote:
>
> From: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
>
> [ Upstream commit 1fdc97ae450ede2b4911d6737a57e6fca63b5f4a ]
>
> We have a dedicated "amlogic,meson-g12a-dwmac" compatible string for the
> Ethernet controller since commit 3efdb92426bf4 ("dt-bindings: net:
> dwmac-meson: Add a compatible string for G12A onwards").
> Using the AXG compatible string worked fine so far because the
> dwmac-meson8b driver doesn't handle the newly introduced register bits
> for G12A. However, once that changes the driver must be probed with the
> correct compatible string to manage these new register bits.
>
> Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
> Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
> Signed-off-by: Kevin Hilman <khilman@baylibre.com>
> Link: https://lore.kernel.org/r/20200925211743.537496-1-martin.blumenstingl@googlemail.com
> Signed-off-by: Sasha Levin <sashal@kernel.org>
if this patch will be included in 5.4-stable then please also backport
the following two commits:
- 3efdb92426bf4 ("dt-bindings: net: dwmac-meson: Add a compatible
string for G12A onwards")
- a4f63342d03d2d ("net: stmmac: dwmac-meson8b: add a compatible string
for G12A SoCs")

Without these above two commits we'll lose Ethernet connectivity
because there's no G12A compatible string in 5.4 yet

The quick solution would be to not backport this patch because the
driver in question doesn't do anything with the new compatible string
yet.


Best regards,
Martin

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Re: [PATCH AUTOSEL 5.4 05/24] arm64: dts: amlogic: meson-g12: use the G12A specific dwmac compatible

[Sasha Levin]

On Tue, Nov 03, 2020 at 06:53:17AM +0100, Martin Blumenstingl wrote:
>Hi Sasha,
>
>On Tue, Nov 3, 2020 at 2:20 AM Sasha Levin <sashal@kernel.org> wrote:
>>
>> From: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
>>
>> [ Upstream commit 1fdc97ae450ede2b4911d6737a57e6fca63b5f4a ]
>>
>> We have a dedicated "amlogic,meson-g12a-dwmac" compatible string for the
>> Ethernet controller since commit 3efdb92426bf4 ("dt-bindings: net:
>> dwmac-meson: Add a compatible string for G12A onwards").
>> Using the AXG compatible string worked fine so far because the
>> dwmac-meson8b driver doesn't handle the newly introduced register bits
>> for G12A. However, once that changes the driver must be probed with the
>> correct compatible string to manage these new register bits.
>>
>> Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
>> Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
>> Signed-off-by: Kevin Hilman <khilman@baylibre.com>
>> Link: https://lore.kernel.org/r/20200925211743.537496-1-martin.blumenstingl@googlemail.com
>> Signed-off-by: Sasha Levin <sashal@kernel.org>
>if this patch will be included in 5.4-stable then please also backport
>the following two commits:
>- 3efdb92426bf4 ("dt-bindings: net: dwmac-meson: Add a compatible
>string for G12A onwards")
>- a4f63342d03d2d ("net: stmmac: dwmac-meson8b: add a compatible string
>for G12A SoCs")
>
>Without these above two commits we'll lose Ethernet connectivity
>because there's no G12A compatible string in 5.4 yet
>
>The quick solution would be to not backport this patch because the
>driver in question doesn't do anything with the new compatible string
>yet.

I'll drop it from older branches that don't have those commits, thanks!

-- 
Thanks,
Sasha

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[PATCH AUTOSEL 5.4 08/24] drm/sun4i: frontend: Rework a bit the phase data

[Sasha Levin]

From: Maxime Ripard <maxime@cerno.tech>

[ Upstream commit 84c971b356379c621df595bd00c3114579dfa59f ]

The scaler filter phase setup in the allwinner kernel has two different
cases for setting up the scaler filter, the first one using different phase
parameters for the two channels, and the second one reusing the first
channel parameters on the second channel.

The allwinner kernel has a third option where the horizontal phase of the
second channel will be set to a different value than the vertical one (and
seems like it's the same value than one used on the first channel).
However, that code path seems to never be taken, so we can ignore it for
now, and it's essentially what we're doing so far as well.

Since we will have always the same values across each components of the
filter setup for a given channel, we can simplify a bit our frontend
structure by only storing the phase value we want to apply to a given
channel.

Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Acked-by: Jernej Skrabec <jernej.skrabec@siol.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20201015093642.261440-1-maxime@cerno.tech
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/sun4i/sun4i_frontend.c | 34 ++++++--------------------
 drivers/gpu/drm/sun4i/sun4i_frontend.h |  6 +----
 2 files changed, 9 insertions(+), 31 deletions(-)

diff --git a/drivers/gpu/drm/sun4i/sun4i_frontend.c b/drivers/gpu/drm/sun4i/sun4i_frontend.c
index ec2a032e07b97..7462801b1fa8e 100644
--- a/drivers/gpu/drm/sun4i/sun4i_frontend.c
+++ b/drivers/gpu/drm/sun4i/sun4i_frontend.c
@@ -443,17 +443,17 @@ int sun4i_frontend_update_formats(struct sun4i_frontend *frontend,
 	 * related to the scaler FIR filter phase parameters.
 	 */
 	regmap_write(frontend->regs, SUN4I_FRONTEND_CH0_HORZPHASE_REG,
-		     frontend->data->ch_phase[0].horzphase);
+		     frontend->data->ch_phase[0]);
 	regmap_write(frontend->regs, SUN4I_FRONTEND_CH1_HORZPHASE_REG,
-		     frontend->data->ch_phase[1].horzphase);
+		     frontend->data->ch_phase[1]);
 	regmap_write(frontend->regs, SUN4I_FRONTEND_CH0_VERTPHASE0_REG,
-		     frontend->data->ch_phase[0].vertphase[0]);
+		     frontend->data->ch_phase[0]);
 	regmap_write(frontend->regs, SUN4I_FRONTEND_CH1_VERTPHASE0_REG,
-		     frontend->data->ch_phase[1].vertphase[0]);
+		     frontend->data->ch_phase[1]);
 	regmap_write(frontend->regs, SUN4I_FRONTEND_CH0_VERTPHASE1_REG,
-		     frontend->data->ch_phase[0].vertphase[1]);
+		     frontend->data->ch_phase[0]);
 	regmap_write(frontend->regs, SUN4I_FRONTEND_CH1_VERTPHASE1_REG,
-		     frontend->data->ch_phase[1].vertphase[1]);
+		     frontend->data->ch_phase[1]);
 
 	/*
 	 * Checking the input format is sufficient since we currently only
@@ -687,30 +687,12 @@ static const struct dev_pm_ops sun4i_frontend_pm_ops = {
 };
 
 static const struct sun4i_frontend_data sun4i_a10_frontend = {
-	.ch_phase		= {
-		{
-			.horzphase = 0,
-			.vertphase = { 0, 0 },
-		},
-		{
-			.horzphase = 0xfc000,
-			.vertphase = { 0xfc000, 0xfc000 },
-		},
-	},
+	.ch_phase		= { 0x000, 0xfc000 },
 	.has_coef_rdy		= true,
 };
 
 static const struct sun4i_frontend_data sun8i_a33_frontend = {
-	.ch_phase		= {
-		{
-			.horzphase = 0x400,
-			.vertphase = { 0x400, 0x400 },
-		},
-		{
-			.horzphase = 0x400,
-			.vertphase = { 0x400, 0x400 },
-		},
-	},
+	.ch_phase		= { 0x400, 0x400 },
 	.has_coef_access_ctrl	= true,
 };
 
diff --git a/drivers/gpu/drm/sun4i/sun4i_frontend.h b/drivers/gpu/drm/sun4i/sun4i_frontend.h
index 0c382c1ddb0fe..2e7b76e50c2ba 100644
--- a/drivers/gpu/drm/sun4i/sun4i_frontend.h
+++ b/drivers/gpu/drm/sun4i/sun4i_frontend.h
@@ -115,11 +115,7 @@ struct reset_control;
 struct sun4i_frontend_data {
 	bool	has_coef_access_ctrl;
 	bool	has_coef_rdy;
-
-	struct {
-		u32	horzphase;
-		u32	vertphase[2];
-	} ch_phase[2];
+	u32	ch_phase[2];
 };
 
 struct sun4i_frontend {
-- 
2.27.0


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[PATCH AUTOSEL 5.4 09/24] drm/sun4i: frontend: Reuse the ch0 phase for RGB formats

[Sasha Levin]

From: Maxime Ripard <maxime@cerno.tech>

[ Upstream commit 2db9ef9d9e6ea89a9feb5338f58d1f8f83875577 ]

When using the scaler on the A10-like frontend with single-planar formats,
the current code will setup the channel 0 filter (used for the R or Y
component) with a different phase parameter than the channel 1 filter (used
for the G/B or U/V components).

This creates a bleed out that keeps repeating on of the last line of the
RGB plane across the rest of the display. The Allwinner BSP either applies
the same phase parameter over both channels or use a separate one, the
condition being whether the input format is YUV420 or not.

Since YUV420 is both subsampled and multi-planar, and since YUYV is
subsampled but single-planar, we can rule out the subsampling and assume
that the condition is actually whether the format is single or
multi-planar. And it looks like applying the same phase parameter over both
channels for single-planar formats fixes our issue, while we keep the
multi-planar formats working properly.

Reported-by: Taras Galchenko <tpgalchenko@gmail.com>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Acked-by: Jernej Skrabec <jernej.skrabec@siol.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20201015093642.261440-2-maxime@cerno.tech
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/sun4i/sun4i_frontend.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/sun4i/sun4i_frontend.c b/drivers/gpu/drm/sun4i/sun4i_frontend.c
index 7462801b1fa8e..c4959d9e16391 100644
--- a/drivers/gpu/drm/sun4i/sun4i_frontend.c
+++ b/drivers/gpu/drm/sun4i/sun4i_frontend.c
@@ -407,6 +407,7 @@ int sun4i_frontend_update_formats(struct sun4i_frontend *frontend,
 	struct drm_framebuffer *fb = state->fb;
 	const struct drm_format_info *format = fb->format;
 	uint64_t modifier = fb->modifier;
+	unsigned int ch1_phase_idx;
 	u32 out_fmt_val;
 	u32 in_fmt_val, in_mod_val, in_ps_val;
 	unsigned int i;
@@ -442,18 +443,19 @@ int sun4i_frontend_update_formats(struct sun4i_frontend *frontend,
 	 * I have no idea what this does exactly, but it seems to be
 	 * related to the scaler FIR filter phase parameters.
 	 */
+	ch1_phase_idx = (format->num_planes > 1) ? 1 : 0;
 	regmap_write(frontend->regs, SUN4I_FRONTEND_CH0_HORZPHASE_REG,
 		     frontend->data->ch_phase[0]);
 	regmap_write(frontend->regs, SUN4I_FRONTEND_CH1_HORZPHASE_REG,
-		     frontend->data->ch_phase[1]);
+		     frontend->data->ch_phase[ch1_phase_idx]);
 	regmap_write(frontend->regs, SUN4I_FRONTEND_CH0_VERTPHASE0_REG,
 		     frontend->data->ch_phase[0]);
 	regmap_write(frontend->regs, SUN4I_FRONTEND_CH1_VERTPHASE0_REG,
-		     frontend->data->ch_phase[1]);
+		     frontend->data->ch_phase[ch1_phase_idx]);
 	regmap_write(frontend->regs, SUN4I_FRONTEND_CH0_VERTPHASE1_REG,
 		     frontend->data->ch_phase[0]);
 	regmap_write(frontend->regs, SUN4I_FRONTEND_CH1_VERTPHASE1_REG,
-		     frontend->data->ch_phase[1]);
+		     frontend->data->ch_phase[ch1_phase_idx]);
 
 	/*
 	 * Checking the input format is sufficient since we currently only
-- 
2.27.0


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[PATCH AUTOSEL 5.4 10/24] drm/sun4i: frontend: Fix the scaler phase on A33

[Sasha Levin]

From: Maxime Ripard <maxime@cerno.tech>

[ Upstream commit e3190b5e9462067714d267c40d8c8c1d0463dda3 ]

The A33 has a different phase parameter in the Allwinner BSP on the
channel1 than the one currently applied. Fix this.

Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Acked-by: Jernej Skrabec <jernej.skrabec@siol.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20201015093642.261440-3-maxime@cerno.tech
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/sun4i/sun4i_frontend.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/sun4i/sun4i_frontend.c b/drivers/gpu/drm/sun4i/sun4i_frontend.c
index c4959d9e16391..7186ba73d8e14 100644
--- a/drivers/gpu/drm/sun4i/sun4i_frontend.c
+++ b/drivers/gpu/drm/sun4i/sun4i_frontend.c
@@ -694,7 +694,7 @@ static const struct sun4i_frontend_data sun4i_a10_frontend = {
 };
 
 static const struct sun4i_frontend_data sun8i_a33_frontend = {
-	.ch_phase		= { 0x400, 0x400 },
+	.ch_phase		= { 0x400, 0xfc400 },
 	.has_coef_access_ctrl	= true,
 };
 
-- 
2.27.0


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[PATCH AUTOSEL 5.4 24/24] arm64/smp: Move rcu_cpu_starting() earlier

[Sasha Levin]

From: Qian Cai <cai@redhat.com>

[ Upstream commit ce3d31ad3cac765484463b4f5a0b6b1f8f1a963e ]

The call to rcu_cpu_starting() in secondary_start_kernel() is not early
enough in the CPU-hotplug onlining process, which results in lockdep
splats as follows:

 WARNING: suspicious RCU usage
 -----------------------------
 kernel/locking/lockdep.c:3497 RCU-list traversed in non-reader section!!

 other info that might help us debug this:

 RCU used illegally from offline CPU!
 rcu_scheduler_active = 1, debug_locks = 1
 no locks held by swapper/1/0.

 Call trace:
  dump_backtrace+0x0/0x3c8
  show_stack+0x14/0x60
  dump_stack+0x14c/0x1c4
  lockdep_rcu_suspicious+0x134/0x14c
  __lock_acquire+0x1c30/0x2600
  lock_acquire+0x274/0xc48
  _raw_spin_lock+0xc8/0x140
  vprintk_emit+0x90/0x3d0
  vprintk_default+0x34/0x40
  vprintk_func+0x378/0x590
  printk+0xa8/0xd4
  __cpuinfo_store_cpu+0x71c/0x868
  cpuinfo_store_cpu+0x2c/0xc8
  secondary_start_kernel+0x244/0x318

This is avoided by moving the call to rcu_cpu_starting up near the
beginning of the secondary_start_kernel() function.

Signed-off-by: Qian Cai <cai@redhat.com>
Acked-by: Paul E. McKenney <paulmck@kernel.org>
Link: https://lore.kernel.org/lkml/160223032121.7002.1269740091547117869.tip-bot2@tip-bot2/
Link: https://lore.kernel.org/r/20201028182614.13655-1-cai@redhat.com
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm64/kernel/smp.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c
index 102dc3e7f2e1d..426409e0d0713 100644
--- a/arch/arm64/kernel/smp.c
+++ b/arch/arm64/kernel/smp.c
@@ -215,6 +215,7 @@ asmlinkage notrace void secondary_start_kernel(void)
 	if (system_uses_irq_prio_masking())
 		init_gic_priority_masking();
 
+	rcu_cpu_starting(cpu);
 	preempt_disable();
 	trace_hardirqs_off();
 
-- 
2.27.0


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