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* [PATCH linux dev-5.1 v1] ARM: dts: aspeed: Add SGPM pinmux
From: Linus Walleij @ 2019-06-03 23:07 UTC (permalink / raw)
  To: linux-aspeed
In-Reply-To: <1559601789-27121-1-git-send-email-hongweiz@ami.com>

Hi Hongwei,

On Tue, Jun 4, 2019 at 12:44 AM Hongwei Zhang <hongweiz@ami.com> wrote:
>
> Add SGPM pinmux to ast2500-pinctrl function and group, to prepare for
> supporting SGPIO in AST2500 SoC.
>
> Signed-off-by: Hongwei Zhang <hongweiz@ami.com>
> ---
>  Documentation/devicetree/bindings/pinctrl/pinctrl-aspeed.txt | 2 +-
>  arch/arm/boot/dts/aspeed-g5.dtsi                             | 5 +++++
>  drivers/pinctrl/aspeed/pinctrl-aspeed-g5.c                   | 4 ++++

Please try to separate out the change to arch/arm/boot/dts/aspeed-g5.dtsi
into a separate patch that goes through ARM SoC.

Other than that it looks fine to me.

Yours,
Linus Walleij

^ permalink raw reply

* [PATCH dev-5.1] ARM: dts: aspeed: swift: Add VDD (IR35219) devices
From: Joel Stanley @ 2019-06-03 23:04 UTC (permalink / raw)
  To: linux-aspeed
In-Reply-To: <66ef1d874db0bf4963f3ea80d3436c3f@linux.vnet.ibm.com>

On Mon, 3 Jun 2019 at 19:37, Adriana Kobylak <anoo@linux.ibm.com> wrote:
>
> On 2019-06-03 04:06, Joel Stanley wrote:
> > On Fri, 31 May 2019 at 20:31, Adriana Kobylak <anoo@linux.ibm.com>
> > wrote:
> >>
> >> From: Adriana Kobylak <anoo@us.ibm.com>
> >>
> >> Add the VDD (IR35219) devices to the Swift device tree.
> >>
> >> +       ir35219 at 70 {
> >> +               compatible = "infineon,ir35219";
> >
> > There's no driver for these in our tree. Do you have one coming?
>
> Eddie will be writing one [Swift VDD VRM device driver
> #311](https://github.com/ibm-openbmc/dev/issues/311)
> Should we put this patch on hold until the driver is done?

Yes. We generally don't put things in the device tree if there's no driver.

Cheers,

Joel

^ permalink raw reply

* [PATCH linux dev-5.1 v1] ARM: dts: aspeed: Add SGPM pinmux
From: Hongwei Zhang @ 2019-06-03 22:43 UTC (permalink / raw)
  To: linux-aspeed

Add SGPM pinmux to ast2500-pinctrl function and group, to prepare for
supporting SGPIO in AST2500 SoC.

Signed-off-by: Hongwei Zhang <hongweiz@ami.com>
---
 Documentation/devicetree/bindings/pinctrl/pinctrl-aspeed.txt | 2 +-
 arch/arm/boot/dts/aspeed-g5.dtsi                             | 5 +++++
 drivers/pinctrl/aspeed/pinctrl-aspeed-g5.c                   | 4 ++++
 3 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/pinctrl/pinctrl-aspeed.txt b/Documentation/devicetree/bindings/pinctrl/pinctrl-aspeed.txt
index 3b7266c..8f1c5c4 100644
--- a/Documentation/devicetree/bindings/pinctrl/pinctrl-aspeed.txt
+++ b/Documentation/devicetree/bindings/pinctrl/pinctrl-aspeed.txt
@@ -84,7 +84,7 @@ NDCD2 NDCD3 NDCD4 NDSR1 NDSR2 NDSR3 NDSR4 NDTR1 NDTR2 NDTR3 NDTR4 NRI1 NRI2
 NRI3 NRI4 NRTS1 NRTS2 NRTS3 NRTS4 OSCCLK PEWAKE PNOR PWM0 PWM1 PWM2 PWM3 PWM4
 PWM5 PWM6 PWM7 RGMII1 RGMII2 RMII1 RMII2 RXD1 RXD2 RXD3 RXD4 SALT1 SALT10
 SALT11 SALT12 SALT13 SALT14 SALT2 SALT3 SALT4 SALT5 SALT6 SALT7 SALT8 SALT9
-SCL1 SCL2 SD1 SD2 SDA1 SDA2 SGPS1 SGPS2 SIOONCTRL SIOPBI SIOPBO SIOPWREQ
+SCL1 SCL2 SD1 SD2 SDA1 SDA2 SGPM SGPS1 SGPS2 SIOONCTRL SIOPBI SIOPBO SIOPWREQ
 SIOPWRGD SIOS3 SIOS5 SIOSCI SPI1 SPI1CS1 SPI1DEBUG SPI1PASSTHRU SPI2CK SPI2CS0
 SPI2CS1 SPI2MISO SPI2MOSI TIMER3 TIMER4 TIMER5 TIMER6 TIMER7 TIMER8 TXD1 TXD2
 TXD3 TXD4 UART6 USB11BHID USB2AD USB2AH USB2BD USB2BH USBCKI VGABIOSROM VGAHS
diff --git a/arch/arm/boot/dts/aspeed-g5.dtsi b/arch/arm/boot/dts/aspeed-g5.dtsi
index 383510d..d10c3ea 100644
--- a/arch/arm/boot/dts/aspeed-g5.dtsi
+++ b/arch/arm/boot/dts/aspeed-g5.dtsi
@@ -1394,6 +1394,11 @@
 		groups = "SDA2";
 	};
 
+	pinctrl_sgpm_default: sgpm_default {
+		function = "SGPM";
+		groups = "SGPM";
+	};
+
 	pinctrl_sgps1_default: sgps1_default {
 		function = "SGPS1";
 		groups = "SGPS1";
diff --git a/drivers/pinctrl/aspeed/pinctrl-aspeed-g5.c b/drivers/pinctrl/aspeed/pinctrl-aspeed-g5.c
index 187abd7..0c89647 100644
--- a/drivers/pinctrl/aspeed/pinctrl-aspeed-g5.c
+++ b/drivers/pinctrl/aspeed/pinctrl-aspeed-g5.c
@@ -577,6 +577,8 @@ SS_PIN_DECL(N3, GPIOJ2, SGPMO);
 SIG_EXPR_LIST_DECL_SINGLE(SGPMI, SGPM, SIG_DESC_SET(SCU84, 11));
 SS_PIN_DECL(N4, GPIOJ3, SGPMI);
 
+FUNC_GROUP_DECL(SGPM, R2, L2, N3, N4);
+
 #define N5 76
 SIG_EXPR_LIST_DECL_SINGLE(VGAHS, VGAHS, SIG_DESC_SET(SCU84, 12));
 SIG_EXPR_LIST_DECL_SINGLE(DASHN5, DASHN5, SIG_DESC_SET(SCU94, 8));
@@ -2127,6 +2129,7 @@ static const struct aspeed_pin_group aspeed_g5_groups[] = {
 	ASPEED_PINCTRL_GROUP(SD2),
 	ASPEED_PINCTRL_GROUP(SDA1),
 	ASPEED_PINCTRL_GROUP(SDA2),
+	ASPEED_PINCTRL_GROUP(SGPM),
 	ASPEED_PINCTRL_GROUP(SGPS1),
 	ASPEED_PINCTRL_GROUP(SGPS2),
 	ASPEED_PINCTRL_GROUP(SIOONCTRL),
@@ -2296,6 +2299,7 @@ static const struct aspeed_pin_function aspeed_g5_functions[] = {
 	ASPEED_PINCTRL_FUNC(SD2),
 	ASPEED_PINCTRL_FUNC(SDA1),
 	ASPEED_PINCTRL_FUNC(SDA2),
+	ASPEED_PINCTRL_FUNC(SGPM),
 	ASPEED_PINCTRL_FUNC(SGPS1),
 	ASPEED_PINCTRL_FUNC(SGPS2),
 	ASPEED_PINCTRL_FUNC(SIOONCTRL),
-- 
2.7.4


^ permalink raw reply related

* [PATCH dev-5.1] ARM: dts: aspeed: swift: Add VDD (IR35219) devices
From: Adriana Kobylak @ 2019-06-03 19:38 UTC (permalink / raw)
  To: linux-aspeed
In-Reply-To: <CACPK8Xc8_SAkxQ1_HTFOkCsV8ejWS=MVXazH+bvDcE=9xKLF8A@mail.gmail.com>

On 2019-06-03 04:06, Joel Stanley wrote:
> On Fri, 31 May 2019 at 20:31, Adriana Kobylak <anoo@linux.ibm.com> 
> wrote:
>> 
>> From: Adriana Kobylak <anoo@us.ibm.com>
>> 
>> Add the VDD (IR35219) devices to the Swift device tree.
>> 
>> +       ir35219 at 70 {
>> +               compatible = "infineon,ir35219";
> 
> There's no driver for these in our tree. Do you have one coming?

Eddie will be writing one [Swift VDD VRM device driver 
#311](https://github.com/ibm-openbmc/dev/issues/311)
Should we put this patch on hold until the driver is done?


^ permalink raw reply

* [PATCH dev-5.1] ARM: dts: aspeed: swift: Add VDD (IR35219) devices
From: Joel Stanley @ 2019-06-03  9:06 UTC (permalink / raw)
  To: linux-aspeed
In-Reply-To: <1559334700-51970-1-git-send-email-anoo@linux.ibm.com>

On Fri, 31 May 2019 at 20:31, Adriana Kobylak <anoo@linux.ibm.com> wrote:
>
> From: Adriana Kobylak <anoo@us.ibm.com>
>
> Add the VDD (IR35219) devices to the Swift device tree.
>
> +       ir35219 at 70 {
> +               compatible = "infineon,ir35219";

There's no driver for these in our tree. Do you have one coming?

^ permalink raw reply

* [PATCH v4] ARM: dts: aspeed: Add YADRO VESNIN BMC
From: Joel Stanley @ 2019-06-03  8:04 UTC (permalink / raw)
  To: linux-aspeed
In-Reply-To: <246c9b25-1c05-4c2f-9185-c438c97ebdec@www.fastmail.com>

On Mon, 3 Jun 2019 at 01:28, Andrew Jeffery <andrew@aj.id.au> wrote:
> On Fri, 31 May 2019, at 18:40, Alexander Filippov wrote:
> > VESNIN is an OpenPower machine with an Aspeed 2400 BMC SoC manufactured
> > by YADRO.
> >
> > Signed-off-by: Alexander Filippov <a.filippov@yadro.com>
>
> Reviewed-by: Andrew Jeffery <andrew@aj.id.au>

Thanks. Applied to the aspeed dt-for-5.3 branch.

Cheers,

Joel

^ permalink raw reply

* [PATCH v4] ARM: dts: aspeed: Add YADRO VESNIN BMC
From: Andrew Jeffery @ 2019-06-03  1:28 UTC (permalink / raw)
  To: linux-aspeed
In-Reply-To: <20190531090950.13466-1-a.filippov@yadro.com>



On Fri, 31 May 2019, at 18:40, Alexander Filippov wrote:
> VESNIN is an OpenPower machine with an Aspeed 2400 BMC SoC manufactured
> by YADRO.
> 
> Signed-off-by: Alexander Filippov <a.filippov@yadro.com>

Reviewed-by: Andrew Jeffery <andrew@aj.id.au>

> ---
>  arch/arm/boot/dts/Makefile                  |   1 +
>  arch/arm/boot/dts/aspeed-bmc-opp-vesnin.dts | 224 ++++++++++++++++++++
>  2 files changed, 225 insertions(+)
>  create mode 100644 arch/arm/boot/dts/aspeed-bmc-opp-vesnin.dts
> 
> diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
> index dab2914fa293..64a956372fe1 100644
> --- a/arch/arm/boot/dts/Makefile
> +++ b/arch/arm/boot/dts/Makefile
> @@ -1272,6 +1272,7 @@ dtb-$(CONFIG_ARCH_ASPEED) += \
>  	aspeed-bmc-opp-lanyang.dtb \
>  	aspeed-bmc-opp-palmetto.dtb \
>  	aspeed-bmc-opp-romulus.dtb \
> +	aspeed-bmc-opp-vesnin.dtb \
>  	aspeed-bmc-opp-witherspoon.dtb \
>  	aspeed-bmc-opp-zaius.dtb \
>  	aspeed-bmc-portwell-neptune.dtb \
> diff --git a/arch/arm/boot/dts/aspeed-bmc-opp-vesnin.dts 
> b/arch/arm/boot/dts/aspeed-bmc-opp-vesnin.dts
> new file mode 100644
> index 000000000000..0b9e29c3212e
> --- /dev/null
> +++ b/arch/arm/boot/dts/aspeed-bmc-opp-vesnin.dts
> @@ -0,0 +1,224 @@
> +// SPDX-License-Identifier: GPL-2.0+
> +// Copyright 2019 YADRO
> +/dts-v1/;
> +
> +#include "aspeed-g4.dtsi"
> +#include <dt-bindings/gpio/aspeed-gpio.h>
> +
> +/ {
> +	model = "Vesnin BMC";
> +	compatible = "yadro,vesnin-bmc", "aspeed,ast2400";
> +
> +	chosen {
> +		stdout-path = &uart5;
> +		bootargs = "console=ttyS4,115200 earlyprintk";
> +	};
> +
> +	memory {
> +		reg = <0x40000000 0x20000000>;
> +	};
> +
> +	reserved-memory {
> +		#address-cells = <1>;
> +		#size-cells = <1>;
> +		ranges;
> +
> +		vga_memory: framebuffer at 5f000000 {
> +			no-map;
> +			reg = <0x5f000000 0x01000000>; /* 16MB */
> +		};
> +		flash_memory: region at 5c000000 {
> +			no-map;
> +			reg = <0x5c000000 0x02000000>; /* 32M */
> +		};
> +	};
> +
> +	leds {
> +		compatible = "gpio-leds";
> +
> +		heartbeat {
> +			gpios = <&gpio ASPEED_GPIO(R, 4) GPIO_ACTIVE_LOW>;
> +		};
> +		power_red {
> +			gpios = <&gpio ASPEED_GPIO(N, 1) GPIO_ACTIVE_LOW>;
> +		};
> +
> +		id_blue {
> +			gpios = <&gpio ASPEED_GPIO(O, 0) GPIO_ACTIVE_LOW>;
> +		};
> +
> +		alarm_red {
> +			gpios = <&gpio ASPEED_GPIO(N, 6) GPIO_ACTIVE_LOW>;
> +		};
> +
> +		alarm_yel {
> +			gpios = <&gpio ASPEED_GPIO(N, 7) GPIO_ACTIVE_HIGH>;
> +		};
> +	};
> +
> +	gpio-keys {
> +		compatible = "gpio-keys";
> +
> +		button_checkstop {
> +			label = "checkstop";
> +			linux,code = <74>;
> +			gpios = <&gpio ASPEED_GPIO(P, 5) GPIO_ACTIVE_LOW>;
> +		};
> +
> +		button_identify {
> +			label = "identify";
> +			linux,code = <152>;
> +			gpios = <&gpio ASPEED_GPIO(O, 7) GPIO_ACTIVE_LOW>;
> +		};
> +	};
> +};
> +
> +&fmc {
> +	status = "okay";
> +	flash at 0 {
> +		status = "okay";
> +		m25p,fast-read;
> +        label = "bmc";
> +#include "openbmc-flash-layout.dtsi"
> +	};
> +};
> +
> +&spi {
> +	status = "okay";
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_spi1debug_default>;
> +
> +	flash at 0 {
> +		status = "okay";
> +		label = "pnor";
> +		m25p,fast-read;
> +	};
> +};
> +
> +&mac0 {
> +	status = "okay";
> +
> +	use-ncsi;
> +	no-hw-checksum;
> +
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_rmii1_default>;
> +};
> +
> +
> +&uart5 {
> +	status = "okay";
> +};
> +
> +&lpc_ctrl {
> +	status = "okay";
> +	memory-region = <&flash_memory>;
> +	flash = <&spi>;
> +};
> +
> +&ibt {
> +	status = "okay";
> +};
> +
> +&uart3 {
> +	status = "okay";
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_txd2_default &pinctrl_rxd2_default>;
> +};
> +
> +&i2c0 {
> +	status = "okay";
> +
> +	eeprom at 50 {
> +		compatible = "atmel,24c256";
> +		reg = <0x50>;
> +		pagesize = <64>;
> +	};
> +};
> +
> +&i2c1 {
> +	status = "okay";
> +
> +	tmp75 at 49 {
> +		compatible = "ti,tmp75";
> +		reg = <0x49>;
> +	};
> +};
> +
> +&i2c2 {
> +	status = "okay";
> +};
> +
> +&i2c3 {
> +	status = "okay";
> +};
> +
> +&i2c4 {
> +	status = "okay";
> +
> +	occ-hwmon at 50 {
> +		compatible = "ibm,p8-occ-hwmon";
> +		reg = <0x50>;
> +	};
> +};
> +
> +&i2c5 {
> +	status = "okay";
> +
> +	occ-hwmon at 51 {
> +		compatible = "ibm,p8-occ-hwmon";
> +		reg = <0x51>;
> +	};
> +};
> +
> +&i2c6 {
> +	status = "okay";
> +
> +	w83795g at 2f {
> +		compatible = "nuvoton,w83795g";
> +		reg = <0x2f>;
> +	};
> +};
> +
> +&i2c7 {
> +	status = "okay";
> +
> +	occ-hwmon at 56 {
> +		compatible = "ibm,p8-occ-hwmon";
> +		reg = <0x56>;
> +	};
> +};
> +
> +&i2c9 {
> +	status = "okay";
> +};
> +
> +&i2c10 {
> +	status = "okay";
> +};
> +
> +&i2c11 {
> +	status = "okay";
> +
> +	occ-hwmon at 57 {
> +		compatible = "ibm,p8-occ-hwmon";
> +		reg = <0x57>;
> +	};
> +};
> +
> +&i2c12 {
> +	status = "okay";
> +
> +	rtc at 68 {
> +		compatible = "maxim,ds3231";
> +		reg = <0x68>;
> +	};
> +};
> +
> +&i2c13 {
> +	status = "okay";
> +};
> +
> +&vuart {
> +	status = "okay";
> +};
> -- 
> 2.20.1
> 
>

^ permalink raw reply

* [PATCH v3 10/10] media: aspeed: add a workaround to fix a silicon bug
From: Jae Hyun Yoo @ 2019-05-31 22:15 UTC (permalink / raw)
  To: linux-aspeed
In-Reply-To: <20190531221548.14757-1-jae.hyun.yoo@linux.intel.com>

AST2500 silicon revision A1 and A2 have a silicon bug which causes
extremly long capturing time on specific resolutions (1680 width).
To fix the bug, this commit adjusts the capturing window register
setting to 1728 if detected width is 1680. The compression window
register setting will be kept as the original width so output
result will be the same.

Signed-off-by: Jae Hyun Yoo <jae.hyun.yoo@linux.intel.com>
---
v2 -> v3:
 Added more detail comments why the value 1728 is picked.

v1 -> v2:
 New.

 drivers/media/platform/aspeed-video.c | 28 ++++++++++++++++++++-------
 1 file changed, 21 insertions(+), 7 deletions(-)

diff --git a/drivers/media/platform/aspeed-video.c b/drivers/media/platform/aspeed-video.c
index ba093096a5a7..f899ac3b4a61 100644
--- a/drivers/media/platform/aspeed-video.c
+++ b/drivers/media/platform/aspeed-video.c
@@ -824,8 +824,29 @@ static void aspeed_video_set_resolution(struct aspeed_video *video)
 	struct v4l2_bt_timings *act = &video->active_timings;
 	unsigned int size = act->width * act->height;
 
+	/* Set capture/compression frame sizes */
 	aspeed_video_calc_compressed_size(video, size);
 
+	if (video->active_timings.width == 1680) {
+		/*
+		 * This is a workaround to fix a silicon bug on A1 and A2
+		 * revisions. Since it doesn't break capturing operation of
+		 * other revisions, use it for all revisions without checking
+		 * the revision ID. It picked 1728 which is a very next
+		 * 64-pixels aligned value to 1680 to minimize memory bandwidth
+		 * and to get better access speed from video engine.
+		 */
+		aspeed_video_write(video, VE_CAP_WINDOW,
+				   1728 << 16 | act->height);
+		size += (1728 - 1680) * video->active_timings.height;
+	} else {
+		aspeed_video_write(video, VE_CAP_WINDOW,
+				   act->width << 16 | act->height);
+	}
+	aspeed_video_write(video, VE_COMP_WINDOW,
+			   act->width << 16 | act->height);
+	aspeed_video_write(video, VE_SRC_SCANLINE_OFFSET, act->width * 4);
+
 	/* Don't use direct mode below 1024 x 768 (irqs don't fire) */
 	if (size < DIRECT_FETCH_THRESHOLD) {
 		aspeed_video_write(video, VE_TGS_0,
@@ -842,13 +863,6 @@ static void aspeed_video_set_resolution(struct aspeed_video *video)
 		aspeed_video_update(video, VE_CTRL, 0, VE_CTRL_DIRECT_FETCH);
 	}
 
-	/* Set capture/compression frame sizes */
-	aspeed_video_write(video, VE_CAP_WINDOW,
-			   act->width << 16 | act->height);
-	aspeed_video_write(video, VE_COMP_WINDOW,
-			   act->width << 16 | act->height);
-	aspeed_video_write(video, VE_SRC_SCANLINE_OFFSET, act->width * 4);
-
 	size *= 4;
 
 	if (size != video->srcs[0].size) {
-- 
2.21.0


^ permalink raw reply related

* [PATCH v3 09/10] media: aspeed: use different delays for triggering VE H/W reset
From: Jae Hyun Yoo @ 2019-05-31 22:15 UTC (permalink / raw)
  To: linux-aspeed
In-Reply-To: <20190531221548.14757-1-jae.hyun.yoo@linux.intel.com>

In case of watchdog timeout detected while doing mode detection,
it's better triggering video engine hardware reset immediately so
this commit fixes code for the case. Other than the case, it will
trigger video engine hardware reset after RESOLUTION_CHANGE_DELAY.

Signed-off-by: Jae Hyun Yoo <jae.hyun.yoo@linux.intel.com>
Reviewed-by: Eddie James <eajames@linux.ibm.com>
---
v2 -> v3:
 None.

v1 -> v2:
 New.

 drivers/media/platform/aspeed-video.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/media/platform/aspeed-video.c b/drivers/media/platform/aspeed-video.c
index d6708ddb0391..ba093096a5a7 100644
--- a/drivers/media/platform/aspeed-video.c
+++ b/drivers/media/platform/aspeed-video.c
@@ -522,7 +522,7 @@ static void aspeed_video_bufs_done(struct aspeed_video *video,
 	spin_unlock_irqrestore(&video->lock, flags);
 }
 
-static void aspeed_video_irq_res_change(struct aspeed_video *video)
+static void aspeed_video_irq_res_change(struct aspeed_video *video, ulong delay)
 {
 	dev_dbg(video->dev, "Resolution changed; resetting\n");
 
@@ -532,7 +532,7 @@ static void aspeed_video_irq_res_change(struct aspeed_video *video)
 	aspeed_video_off(video);
 	aspeed_video_bufs_done(video, VB2_BUF_STATE_ERROR);
 
-	schedule_delayed_work(&video->res_work, RESOLUTION_CHANGE_DELAY);
+	schedule_delayed_work(&video->res_work, delay);
 }
 
 static irqreturn_t aspeed_video_irq(int irq, void *arg)
@@ -545,7 +545,7 @@ static irqreturn_t aspeed_video_irq(int irq, void *arg)
 	 * re-initialize
 	 */
 	if (sts & VE_INTERRUPT_MODE_DETECT_WD) {
-		aspeed_video_irq_res_change(video);
+		aspeed_video_irq_res_change(video, 0);
 		return IRQ_HANDLED;
 	}
 
@@ -563,7 +563,8 @@ static irqreturn_t aspeed_video_irq(int irq, void *arg)
 			 * Signal acquired while NOT doing resolution
 			 * detection; reset the engine and re-initialize
 			 */
-			aspeed_video_irq_res_change(video);
+			aspeed_video_irq_res_change(video,
+						    RESOLUTION_CHANGE_DELAY);
 			return IRQ_HANDLED;
 		}
 	}
-- 
2.21.0


^ permalink raw reply related

* [PATCH v3 08/10] media: aspeed: remove source buffer allocation before mode detection
From: Jae Hyun Yoo @ 2019-05-31 22:15 UTC (permalink / raw)
  To: linux-aspeed
In-Reply-To: <20190531221548.14757-1-jae.hyun.yoo@linux.intel.com>

Mode detection doesn't require source buffer allocation so this
commit removes that.

Signed-off-by: Jae Hyun Yoo <jae.hyun.yoo@linux.intel.com>
Reviewed-by: Eddie James <eajames@linux.ibm.com>
---
v2 -> v3:
 Corrected re-allocation logic of source buffers.

v1 -> v2:
 New.

 drivers/media/platform/aspeed-video.c | 37 ++++-----------------------
 1 file changed, 5 insertions(+), 32 deletions(-)

diff --git a/drivers/media/platform/aspeed-video.c b/drivers/media/platform/aspeed-video.c
index c0b889141b8f..d6708ddb0391 100644
--- a/drivers/media/platform/aspeed-video.c
+++ b/drivers/media/platform/aspeed-video.c
@@ -731,27 +731,6 @@ static void aspeed_video_get_resolution(struct aspeed_video *video)
 	det->height = MIN_HEIGHT;
 	video->v4l2_input_status = V4L2_IN_ST_NO_SIGNAL;
 
-	/*
-	 * Since we need max buffer size for detection, free the second source
-	 * buffer first.
-	 */
-	if (video->srcs[1].size)
-		aspeed_video_free_buf(video, &video->srcs[1]);
-
-	if (video->srcs[0].size < VE_MAX_SRC_BUFFER_SIZE) {
-		if (video->srcs[0].size)
-			aspeed_video_free_buf(video, &video->srcs[0]);
-
-		if (!aspeed_video_alloc_buf(video, &video->srcs[0],
-					    VE_MAX_SRC_BUFFER_SIZE)) {
-			dev_err(video->dev,
-				"Failed to allocate source buffers\n");
-			return;
-		}
-	}
-
-	aspeed_video_write(video, VE_SRC0_ADDR, video->srcs[0].dma);
-
 	do {
 		if (tries) {
 			set_current_state(TASK_INTERRUPTIBLE);
@@ -871,20 +850,14 @@ static void aspeed_video_set_resolution(struct aspeed_video *video)
 
 	size *= 4;
 
-	if (size == video->srcs[0].size / 2) {
-		aspeed_video_write(video, VE_SRC1_ADDR,
-				   video->srcs[0].dma + size);
-	} else if (size == video->srcs[0].size) {
-		if (!aspeed_video_alloc_buf(video, &video->srcs[1], size))
-			goto err_mem;
-
-		aspeed_video_write(video, VE_SRC1_ADDR, video->srcs[1].dma);
-	} else {
-		aspeed_video_free_buf(video, &video->srcs[0]);
+	if (size != video->srcs[0].size) {
+		if (video->srcs[0].size)
+			aspeed_video_free_buf(video, &video->srcs[0]);
+		if (video->srcs[1].size)
+			aspeed_video_free_buf(video, &video->srcs[1]);
 
 		if (!aspeed_video_alloc_buf(video, &video->srcs[0], size))
 			goto err_mem;
-
 		if (!aspeed_video_alloc_buf(video, &video->srcs[1], size))
 			goto err_mem;
 
-- 
2.21.0


^ permalink raw reply related

* [PATCH v3 07/10] media: aspeed: refine interrupt handling logic
From: Jae Hyun Yoo @ 2019-05-31 22:15 UTC (permalink / raw)
  To: linux-aspeed
In-Reply-To: <20190531221548.14757-1-jae.hyun.yoo@linux.intel.com>

There are cases that interrupt bits are cleared by a 500ms delayed
work which causes unnecessary irq calls. Also, the current
interrupt handler returns IRQ_HANDLED always but it should return
IRQ_NONE if there is any unhandled interrupt. So this commit
refines the interrupt handling logic to fix these issues.

Signed-off-by: Jae Hyun Yoo <jae.hyun.yoo@linux.intel.com>
Reviewed-by: Andrew Jeffery <andrew@aj.id.au>
Reviewed-by: Eddie James <eajames@linux.ibm.com>
---
v2 -> v3:
 None.

v1 -> v2:
 None.

 drivers/media/platform/aspeed-video.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/media/platform/aspeed-video.c b/drivers/media/platform/aspeed-video.c
index 1cba582918cc..c0b889141b8f 100644
--- a/drivers/media/platform/aspeed-video.c
+++ b/drivers/media/platform/aspeed-video.c
@@ -488,6 +488,7 @@ static void aspeed_video_off(struct aspeed_video *video)
 
 	/* Disable interrupts */
 	aspeed_video_write(video, VE_INTERRUPT_CTRL, 0);
+	aspeed_video_write(video, VE_INTERRUPT_STATUS, 0xffffffff);
 
 	/* Turn off the relevant clocks */
 	clk_disable(video->vclk);
@@ -554,7 +555,7 @@ static irqreturn_t aspeed_video_irq(int irq, void *arg)
 					    VE_INTERRUPT_MODE_DETECT, 0);
 			aspeed_video_write(video, VE_INTERRUPT_STATUS,
 					   VE_INTERRUPT_MODE_DETECT);
-
+			sts &= ~VE_INTERRUPT_MODE_DETECT;
 			set_bit(VIDEO_MODE_DETECT_DONE, &video->flags);
 			wake_up_interruptible_all(&video->wait);
 		} else {
@@ -599,12 +600,12 @@ static irqreturn_t aspeed_video_irq(int irq, void *arg)
 				    VE_INTERRUPT_COMP_COMPLETE, 0);
 		aspeed_video_write(video, VE_INTERRUPT_STATUS,
 				   VE_INTERRUPT_COMP_COMPLETE);
-
+		sts &= ~VE_INTERRUPT_COMP_COMPLETE;
 		if (test_bit(VIDEO_STREAMING, &video->flags) && buf)
 			aspeed_video_start_frame(video);
 	}
 
-	return IRQ_HANDLED;
+	return sts ? IRQ_NONE : IRQ_HANDLED;
 }
 
 static void aspeed_video_check_and_set_polarity(struct aspeed_video *video)
-- 
2.21.0


^ permalink raw reply related

* [PATCH v3 06/10] media: aspeed: remove checking of VE_INTERRUPT_CAPTURE_COMPLETE
From: Jae Hyun Yoo @ 2019-05-31 22:15 UTC (permalink / raw)
  To: linux-aspeed
In-Reply-To: <20190531221548.14757-1-jae.hyun.yoo@linux.intel.com>

VE_INTERRUPT_CAPTURE_COMPLETE and VE_INTERRUPT_COMP_COMPLETE are
not set at the same time but the current interrupt handling
mechanism of this driver doesn't clear the interrupt flag until
both two are set, and this behavior causes unnecessary interrupt
handler calls. In fact, this driver provides JPEG format only so
taking care of the VE_INTERRUPT_COMP_COMPLETE is enough for getting
compressed image frame so this commit gets rid of the
VE_INTERRUPT_CAPTURE_COMPLETE checking logic to simplify the logic.
Handling of VE_INTERRUPT_CAPTURE_COMPLETE could be added back later
when it's actually needed.

Signed-off-by: Jae Hyun Yoo <jae.hyun.yoo@linux.intel.com>
Reviewed-by: Eddie James <eajames@linux.ibm.com>
Reviewed-by: Andrew Jeffery <andrew@aj.id.au>
---
v2 -> v3:
 None.

v1 -> v2:
 None.

 drivers/media/platform/aspeed-video.c | 12 ++++--------
 1 file changed, 4 insertions(+), 8 deletions(-)

diff --git a/drivers/media/platform/aspeed-video.c b/drivers/media/platform/aspeed-video.c
index 92abdfc79e76..1cba582918cc 100644
--- a/drivers/media/platform/aspeed-video.c
+++ b/drivers/media/platform/aspeed-video.c
@@ -463,8 +463,7 @@ static int aspeed_video_start_frame(struct aspeed_video *video)
 	aspeed_video_write(video, VE_COMP_ADDR, addr);
 
 	aspeed_video_update(video, VE_INTERRUPT_CTRL, 0,
-			    VE_INTERRUPT_COMP_COMPLETE |
-			    VE_INTERRUPT_CAPTURE_COMPLETE);
+			    VE_INTERRUPT_COMP_COMPLETE);
 
 	aspeed_video_update(video, VE_SEQ_CTRL, 0,
 			    VE_SEQ_CTRL_TRIG_CAPTURE | VE_SEQ_CTRL_TRIG_COMP);
@@ -568,8 +567,7 @@ static irqreturn_t aspeed_video_irq(int irq, void *arg)
 		}
 	}
 
-	if ((sts & VE_INTERRUPT_COMP_COMPLETE) &&
-	    (sts & VE_INTERRUPT_CAPTURE_COMPLETE)) {
+	if (sts & VE_INTERRUPT_COMP_COMPLETE) {
 		struct aspeed_video_buffer *buf;
 		u32 frame_size = aspeed_video_read(video,
 						   VE_OFFSET_COMP_STREAM);
@@ -598,11 +596,9 @@ static irqreturn_t aspeed_video_irq(int irq, void *arg)
 				    VE_SEQ_CTRL_FORCE_IDLE |
 				    VE_SEQ_CTRL_TRIG_COMP, 0);
 		aspeed_video_update(video, VE_INTERRUPT_CTRL,
-				    VE_INTERRUPT_COMP_COMPLETE |
-				    VE_INTERRUPT_CAPTURE_COMPLETE, 0);
+				    VE_INTERRUPT_COMP_COMPLETE, 0);
 		aspeed_video_write(video, VE_INTERRUPT_STATUS,
-				   VE_INTERRUPT_COMP_COMPLETE |
-				   VE_INTERRUPT_CAPTURE_COMPLETE);
+				   VE_INTERRUPT_COMP_COMPLETE);
 
 		if (test_bit(VIDEO_STREAMING, &video->flags) && buf)
 			aspeed_video_start_frame(video);
-- 
2.21.0


^ permalink raw reply related

* [PATCH v3 05/10] media: aspeed: reduce noisy log printing outs
From: Jae Hyun Yoo @ 2019-05-31 22:15 UTC (permalink / raw)
  To: linux-aspeed
In-Reply-To: <20190531221548.14757-1-jae.hyun.yoo@linux.intel.com>

Currently, this driver prints out too much log messages when a
mode change happens, video turned off by screen saver and etc.
Actually, all cases are reported to user space properly. Also,
these are not critical errors but recoverable things, so this
commit changes the log level of some noisy printing outs.

Signed-off-by: Jae Hyun Yoo <jae.hyun.yoo@linux.intel.com>
Reviewed-by: Eddie James <eajames@linux.ibm.com>
---
v2 -> v3:
 None.

v1 -> v2:
 None.

 drivers/media/platform/aspeed-video.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/media/platform/aspeed-video.c b/drivers/media/platform/aspeed-video.c
index d1b541409544..92abdfc79e76 100644
--- a/drivers/media/platform/aspeed-video.c
+++ b/drivers/media/platform/aspeed-video.c
@@ -441,7 +441,7 @@ static int aspeed_video_start_frame(struct aspeed_video *video)
 
 	if (!(seq_ctrl & VE_SEQ_CTRL_COMP_BUSY) ||
 	    !(seq_ctrl & VE_SEQ_CTRL_CAP_BUSY)) {
-		dev_err(video->dev, "Engine busy; don't start frame\n");
+		dev_dbg(video->dev, "Engine busy; don't start frame\n");
 		return -EBUSY;
 	}
 
@@ -769,7 +769,7 @@ static void aspeed_video_get_resolution(struct aspeed_video *video)
 						      res_check(video),
 						      MODE_DETECT_TIMEOUT);
 		if (!rc) {
-			dev_err(video->dev, "Timed out; first mode detect\n");
+			dev_dbg(video->dev, "Timed out; first mode detect\n");
 			clear_bit(VIDEO_RES_DETECT, &video->flags);
 			return;
 		}
@@ -787,7 +787,7 @@ static void aspeed_video_get_resolution(struct aspeed_video *video)
 						      MODE_DETECT_TIMEOUT);
 		clear_bit(VIDEO_RES_DETECT, &video->flags);
 		if (!rc) {
-			dev_err(video->dev, "Timed out; second mode detect\n");
+			dev_dbg(video->dev, "Timed out; second mode detect\n");
 			return;
 		}
 
@@ -821,7 +821,7 @@ static void aspeed_video_get_resolution(struct aspeed_video *video)
 	} while (invalid_resolution && (tries++ < INVALID_RESOLUTION_RETRIES));
 
 	if (invalid_resolution) {
-		dev_err(video->dev, "Invalid resolution detected\n");
+		dev_dbg(video->dev, "Invalid resolution detected\n");
 		return;
 	}
 
@@ -1456,7 +1456,7 @@ static void aspeed_video_stop_streaming(struct vb2_queue *q)
 				!test_bit(VIDEO_FRAME_INPRG, &video->flags),
 				STOP_TIMEOUT);
 	if (!rc) {
-		dev_err(video->dev, "Timed out when stopping streaming\n");
+		dev_dbg(video->dev, "Timed out when stopping streaming\n");
 
 		/*
 		 * Need to force stop any DMA and try and get HW into a good
-- 
2.21.0


^ permalink raw reply related

* [PATCH v3 04/10] media: aspeed: remove IRQF_SHARED flag
From: Jae Hyun Yoo @ 2019-05-31 22:15 UTC (permalink / raw)
  To: linux-aspeed
In-Reply-To: <20190531221548.14757-1-jae.hyun.yoo@linux.intel.com>

Video Engine has a dedicated interrupt line so this driver doesn't
need to use IRQF_SHARED flag so remove it. Also, it'd be good for
following what Thomas recommended in the IRQF_ONESHOT support
patch like below:

"Note that for now IRQF_ONESHOT cannot be used with IRQF_SHARED to
avoid complex accounting mechanisms."

Signed-off-by: Jae Hyun Yoo <jae.hyun.yoo@linux.intel.com>
Reviewed-by: Eddie James <eajames@linux.ibm.com>
---
v2 -> v3:
 None.

v1 -> v2:
 None.

 drivers/media/platform/aspeed-video.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/media/platform/aspeed-video.c b/drivers/media/platform/aspeed-video.c
index f7db8969c8f2..d1b541409544 100644
--- a/drivers/media/platform/aspeed-video.c
+++ b/drivers/media/platform/aspeed-video.c
@@ -1601,8 +1601,7 @@ static int aspeed_video_init(struct aspeed_video *video)
 	}
 
 	rc = devm_request_threaded_irq(dev, irq, NULL, aspeed_video_irq,
-				       IRQF_ONESHOT | IRQF_SHARED, DEVICE_NAME,
-				       video);
+				       IRQF_ONESHOT, DEVICE_NAME, video);
 	if (rc < 0) {
 		dev_err(dev, "Unable to request IRQ %d\n", irq);
 		return rc;
-- 
2.21.0


^ permalink raw reply related

* [PATCH v3 03/10] media: aspeed: change irq to threaded irq
From: Jae Hyun Yoo @ 2019-05-31 22:15 UTC (permalink / raw)
  To: linux-aspeed
In-Reply-To: <20190531221548.14757-1-jae.hyun.yoo@linux.intel.com>

Differently from other Aspeed drivers, this driver calls clock
control APIs in interrupt context. Since ECLK is coupled with a
reset bit in clk-aspeed module, aspeed_clk_enable will make 10ms of
busy waiting delay for triggering the reset and it will eventually
disturb other drivers' interrupt handling. To fix this issue, this
commit changes this driver's irq to threaded irq so that the delay
can be happened in a thread context.

Signed-off-by: Jae Hyun Yoo <jae.hyun.yoo@linux.intel.com>
Reviewed-by: Eddie James <eajames@linux.ibm.com>
---
v2 -> v3:
 None.

v1 -> v2:
 None.

 drivers/media/platform/aspeed-video.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/media/platform/aspeed-video.c b/drivers/media/platform/aspeed-video.c
index 7982ce634936..f7db8969c8f2 100644
--- a/drivers/media/platform/aspeed-video.c
+++ b/drivers/media/platform/aspeed-video.c
@@ -1600,8 +1600,9 @@ static int aspeed_video_init(struct aspeed_video *video)
 		return -ENODEV;
 	}
 
-	rc = devm_request_irq(dev, irq, aspeed_video_irq, IRQF_SHARED,
-			      DEVICE_NAME, video);
+	rc = devm_request_threaded_irq(dev, irq, NULL, aspeed_video_irq,
+				       IRQF_ONESHOT | IRQF_SHARED, DEVICE_NAME,
+				       video);
 	if (rc < 0) {
 		dev_err(dev, "Unable to request IRQ %d\n", irq);
 		return rc;
-- 
2.21.0


^ permalink raw reply related

* [PATCH v3 02/10] media: aspeed: refine clock control logic
From: Jae Hyun Yoo @ 2019-05-31 22:15 UTC (permalink / raw)
  To: linux-aspeed
In-Reply-To: <20190531221548.14757-1-jae.hyun.yoo@linux.intel.com>

Currently, this driver calls clk_prepare and clk_unprepare from
interrupt context too but these should be called from sleepable
context only. To fix this issue, this commit splits out
clk_enable/disable and clk_prepare/unprepare, and it places
clk_prepare/unprepare calls into the module probe/remove function.

Signed-off-by: Jae Hyun Yoo <jae.hyun.yoo@linux.intel.com>
Reviewed-by: Eddie James <eajames@linux.ibm.com>
---
v2 -> v3:
 None.

v1 -> v2:
 None.

 drivers/media/platform/aspeed-video.c | 38 ++++++++++++++++++++-------
 1 file changed, 29 insertions(+), 9 deletions(-)

diff --git a/drivers/media/platform/aspeed-video.c b/drivers/media/platform/aspeed-video.c
index 562d7c0adc78..7982ce634936 100644
--- a/drivers/media/platform/aspeed-video.c
+++ b/drivers/media/platform/aspeed-video.c
@@ -491,8 +491,8 @@ static void aspeed_video_off(struct aspeed_video *video)
 	aspeed_video_write(video, VE_INTERRUPT_CTRL, 0);
 
 	/* Turn off the relevant clocks */
-	clk_disable_unprepare(video->vclk);
-	clk_disable_unprepare(video->eclk);
+	clk_disable(video->vclk);
+	clk_disable(video->eclk);
 
 	clear_bit(VIDEO_CLOCKS_ON, &video->flags);
 }
@@ -503,8 +503,8 @@ static void aspeed_video_on(struct aspeed_video *video)
 		return;
 
 	/* Turn on the relevant clocks */
-	clk_prepare_enable(video->eclk);
-	clk_prepare_enable(video->vclk);
+	clk_enable(video->eclk);
+	clk_enable(video->vclk);
 
 	set_bit(VIDEO_CLOCKS_ON, &video->flags);
 }
@@ -1613,31 +1613,46 @@ static int aspeed_video_init(struct aspeed_video *video)
 		return PTR_ERR(video->eclk);
 	}
 
+	rc = clk_prepare(video->eclk);
+	if (rc)
+		return rc;
+
 	video->vclk = devm_clk_get(dev, "vclk");
 	if (IS_ERR(video->vclk)) {
 		dev_err(dev, "Unable to get VCLK\n");
-		return PTR_ERR(video->vclk);
+		rc = PTR_ERR(video->vclk);
+		goto err_unprepare_eclk;
 	}
 
+	rc = clk_prepare(video->vclk);
+	if (rc)
+		goto err_unprepare_eclk;
+
 	of_reserved_mem_device_init(dev);
 
 	rc = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(32));
 	if (rc) {
 		dev_err(dev, "Failed to set DMA mask\n");
-		of_reserved_mem_device_release(dev);
-		return rc;
+		goto err_release_reserved_mem;
 	}
 
 	if (!aspeed_video_alloc_buf(video, &video->jpeg,
 				    VE_JPEG_HEADER_SIZE)) {
 		dev_err(dev, "Failed to allocate DMA for JPEG header\n");
-		of_reserved_mem_device_release(dev);
-		return rc;
+		goto err_release_reserved_mem;
 	}
 
 	aspeed_video_init_jpeg_table(video->jpeg.virt, video->yuv420);
 
 	return 0;
+
+err_release_reserved_mem:
+	of_reserved_mem_device_release(dev);
+	clk_unprepare(video->vclk);
+err_unprepare_eclk:
+	clk_unprepare(video->eclk);
+
+	return rc;
 }
 
 static int aspeed_video_probe(struct platform_device *pdev)
@@ -1681,6 +1696,11 @@ static int aspeed_video_remove(struct platform_device *pdev)
 	struct v4l2_device *v4l2_dev = dev_get_drvdata(dev);
 	struct aspeed_video *video = to_aspeed_video(v4l2_dev);
 
+	aspeed_video_off(video);
+
+	clk_unprepare(video->vclk);
+	clk_unprepare(video->eclk);
+
 	video_unregister_device(&video->vdev);
 
 	vb2_queue_release(&video->queue);
-- 
2.21.0


^ permalink raw reply related

* [PATCH v3 01/10] media: aspeed: fix a kernel warning on clk control
From: Jae Hyun Yoo @ 2019-05-31 22:15 UTC (permalink / raw)
  To: linux-aspeed
In-Reply-To: <20190531221548.14757-1-jae.hyun.yoo@linux.intel.com>

Video engine clock control can be double disabled and eventually
it causes a kernel warning with stack dump printing out like below:

[  515.540498] ------------[ cut here ]------------
[  515.545174] WARNING: CPU: 0 PID: 1310 at drivers/clk/clk.c:684 clk_core_unprepare+0x13c/0x170
[  515.553806] vclk-gate already unprepared
[  515.557841] CPU: 0 PID: 1310 Comm: obmc-ikvm Tainted: G        W         5.0.6-df66fbc97853fbba90a0bfa44de32f3d5f7602b4 #1
[  515.568973] Hardware name: Generic DT based system
[  515.573777] Backtrace:
[  515.576272] [<80107cdc>] (dump_backtrace) from [<80107f10>] (show_stack+0x20/0x24)
[  515.583930]  r7:803a5614 r6:00000009 r5:00000000 r4:9d88fe1c
[  515.589712] [<80107ef0>] (show_stack) from [<80690184>] (dump_stack+0x20/0x28)
[  515.597053] [<80690164>] (dump_stack) from [<80116044>] (__warn.part.3+0xb4/0xdc)
[  515.604557] [<80115f90>] (__warn.part.3) from [<801160d8>] (warn_slowpath_fmt+0x6c/0x90)
[  515.612734]  r6:000002ac r5:8080befc r4:80a07008
[  515.617463] [<80116070>] (warn_slowpath_fmt) from [<803a5614>] (clk_core_unprepare+0x13c/0x170)
[  515.626167]  r3:8080cdf4 r2:8080bfc0
[  515.629834]  r7:98d682a8 r6:9d8a9200 r5:9e5151a0 r4:97abd620
[  515.635530] [<803a54d8>] (clk_core_unprepare) from [<803a76a4>] (clk_unprepare+0x34/0x3c)
[  515.643812]  r5:9e5151a0 r4:97abd620
[  515.647529] [<803a7670>] (clk_unprepare) from [<804f36ec>] (aspeed_video_off+0x38/0x50)
[  515.655539]  r5:9e5151a0 r4:9e504000
[  515.659242] [<804f36b4>] (aspeed_video_off) from [<804f4358>] (aspeed_video_release+0x90/0x114)
[  515.668036]  r5:9e5044b0 r4:9e504000
[  515.671643] [<804f42c8>] (aspeed_video_release) from [<804d302c>] (v4l2_release+0xd4/0xe8)
[  515.679999]  r7:98d682a8 r6:9d087810 r5:9d8a9200 r4:9e504318
[  515.685695] [<804d2f58>] (v4l2_release) from [<80236454>] (__fput+0x98/0x1c4)
[  515.692914]  r5:9e51b608 r4:9d8a9200
[  515.696597] [<802363bc>] (__fput) from [<802365e8>] (____fput+0x18/0x1c)
[  515.703315]  r9:80a0700c r8:801011e4 r7:00000000 r6:80a64b9c r5:9d8e35a0 r4:9d8e38dc
[  515.711167] [<802365d0>] (____fput) from [<80131ca4>] (task_work_run+0x7c/0xa0)
[  515.718596] [<80131c28>] (task_work_run) from [<80106884>] (do_work_pending+0x4a8/0x578)
[  515.726777]  r7:801011e4 r6:80a07008 r5:9d88ffb0 r4:ffffe000
[  515.732466] [<801063dc>] (do_work_pending) from [<8010106c>] (slow_work_pending+0xc/0x20)
[  515.740727] Exception stack(0x9d88ffb0 to 0x9d88fff8)
[  515.745840] ffa0:                                     00000000 76f18094 00000000 00000000
[  515.754122] ffc0: 00000007 00176778 7eda4c20 00000006 00000000 00000000 48e20fa4 00000000
[  515.762386] ffe0: 00000002 7eda4b08 00000000 48f91efc 80000010 00000007
[  515.769097]  r10:00000000 r9:9d88e000 r8:801011e4 r7:00000006 r6:7eda4c20 r5:00176778
[  515.777006]  r4:00000007
[  515.779558] ---[ end trace 12c04aadef8afbbb ]---
[  515.784176] ------------[ cut here ]------------
[  515.788817] WARNING: CPU: 0 PID: 1310 at drivers/clk/clk.c:825 clk_core_disable+0x18c/0x204
[  515.797161] eclk-gate already disabled
[  515.800916] CPU: 0 PID: 1310 Comm: obmc-ikvm Tainted: G        W         5.0.6-df66fbc97853fbba90a0bfa44de32f3d5f7602b4 #1
[  515.811945] Hardware name: Generic DT based system
[  515.816730] Backtrace:
[  515.819210] [<80107cdc>] (dump_backtrace) from [<80107f10>] (show_stack+0x20/0x24)
[  515.826782]  r7:803a5900 r6:00000009 r5:00000000 r4:9d88fe04
[  515.832454] [<80107ef0>] (show_stack) from [<80690184>] (dump_stack+0x20/0x28)
[  515.839687] [<80690164>] (dump_stack) from [<80116044>] (__warn.part.3+0xb4/0xdc)
[  515.847170] [<80115f90>] (__warn.part.3) from [<801160d8>] (warn_slowpath_fmt+0x6c/0x90)
[  515.855247]  r6:00000339 r5:8080befc r4:80a07008
[  515.859868] [<80116070>] (warn_slowpath_fmt) from [<803a5900>] (clk_core_disable+0x18c/0x204)
[  515.868385]  r3:8080cdd0 r2:8080c00c
[  515.871957]  r7:98d682a8 r6:9d8a9200 r5:97abd560 r4:97abd560
[  515.877615] [<803a5774>] (clk_core_disable) from [<803a59a0>] (clk_core_disable_lock+0x28/0x34)
[  515.886301]  r7:98d682a8 r6:9d8a9200 r5:97abd560 r4:a0000013
[  515.891960] [<803a5978>] (clk_core_disable_lock) from [<803a7714>] (clk_disable+0x2c/0x30)
[  515.900216]  r5:9e5151a0 r4:9e515f60
[  515.903816] [<803a76e8>] (clk_disable) from [<804f36f8>] (aspeed_video_off+0x44/0x50)
[  515.911656] [<804f36b4>] (aspeed_video_off) from [<804f4358>] (aspeed_video_release+0x90/0x114)
[  515.920341]  r5:9e5044b0 r4:9e504000
[  515.923921] [<804f42c8>] (aspeed_video_release) from [<804d302c>] (v4l2_release+0xd4/0xe8)
[  515.932184]  r7:98d682a8 r6:9d087810 r5:9d8a9200 r4:9e504318
[  515.937851] [<804d2f58>] (v4l2_release) from [<80236454>] (__fput+0x98/0x1c4)
[  515.944980]  r5:9e51b608 r4:9d8a9200
[  515.948559] [<802363bc>] (__fput) from [<802365e8>] (____fput+0x18/0x1c)
[  515.955257]  r9:80a0700c r8:801011e4 r7:00000000 r6:80a64b9c r5:9d8e35a0 r4:9d8e38dc
[  515.963008] [<802365d0>] (____fput) from [<80131ca4>] (task_work_run+0x7c/0xa0)
[  515.970333] [<80131c28>] (task_work_run) from [<80106884>] (do_work_pending+0x4a8/0x578)
[  515.978421]  r7:801011e4 r6:80a07008 r5:9d88ffb0 r4:ffffe000
[  515.984086] [<801063dc>] (do_work_pending) from [<8010106c>] (slow_work_pending+0xc/0x20)
[  515.992247] Exception stack(0x9d88ffb0 to 0x9d88fff8)
[  515.997296] ffa0:                                     00000000 76f18094 00000000 00000000
[  516.005473] ffc0: 00000007 00176778 7eda4c20 00000006 00000000 00000000 48e20fa4 00000000
[  516.013642] ffe0: 00000002 7eda4b08 00000000 48f91efc 80000010 00000007
[  516.020257]  r10:00000000 r9:9d88e000 r8:801011e4 r7:00000006 r6:7eda4c20 r5:00176778
[  516.028072]  r4:00000007
[  516.030606] ---[ end trace 12c04aadef8afbbc ]---

To prevent this issue, this commit adds clock status checking
logic into the Aspeed video engine driver.

Signed-off-by: Jae Hyun Yoo <jae.hyun.yoo@linux.intel.com>
Reviewed-by: Eddie James <eajames@linux.ibm.com>
---
v2 -> v3:
 None.

v1 -> v2:
 Removed spinlock handling code. Actual fix for removing the kernel warning is
 blocking double disabling of video clocks. Refactoring of protection mechanism
 of this driver will be submitted using a seprate patch series.

 drivers/media/platform/aspeed-video.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/media/platform/aspeed-video.c b/drivers/media/platform/aspeed-video.c
index 8144fe36ad48..562d7c0adc78 100644
--- a/drivers/media/platform/aspeed-video.c
+++ b/drivers/media/platform/aspeed-video.c
@@ -187,6 +187,7 @@ enum {
 	VIDEO_STREAMING,
 	VIDEO_FRAME_INPRG,
 	VIDEO_STOPPED,
+	VIDEO_CLOCKS_ON,
 };
 
 struct aspeed_video_addr {
@@ -483,19 +484,29 @@ static void aspeed_video_enable_mode_detect(struct aspeed_video *video)
 
 static void aspeed_video_off(struct aspeed_video *video)
 {
+	if (!test_bit(VIDEO_CLOCKS_ON, &video->flags))
+		return;
+
 	/* Disable interrupts */
 	aspeed_video_write(video, VE_INTERRUPT_CTRL, 0);
 
 	/* Turn off the relevant clocks */
 	clk_disable_unprepare(video->vclk);
 	clk_disable_unprepare(video->eclk);
+
+	clear_bit(VIDEO_CLOCKS_ON, &video->flags);
 }
 
 static void aspeed_video_on(struct aspeed_video *video)
 {
+	if (test_bit(VIDEO_CLOCKS_ON, &video->flags))
+		return;
+
 	/* Turn on the relevant clocks */
 	clk_prepare_enable(video->eclk);
 	clk_prepare_enable(video->vclk);
+
+	set_bit(VIDEO_CLOCKS_ON, &video->flags);
 }
 
 static void aspeed_video_bufs_done(struct aspeed_video *video,
-- 
2.21.0


^ permalink raw reply related

* [PATCH v3 00/10] Improve stability and add bug fixes of Aspeed video engine driver
From: Jae Hyun Yoo @ 2019-05-31 22:15 UTC (permalink / raw)
  To: linux-aspeed

This patch series improves stability of Aspeed video engine driver by fixing
clock control and irq handling logic in the driver. Also, it adds a couple of
bug fixes and a workaroud for a silicon bug.

Changes since v2:
- Corrected re-allocation logic of source buffer.
- Removed an incorrect patch from this series (10/11 in v2).
- Added more details into the silicon bug workaround fix comment.

Changes since v1:
- Removed spinlock handling code from 0001 patch.
- Added 4 more patches.
Jae Hyun Yoo (10):
  media: aspeed: fix a kernel warning on clk control
  media: aspeed: refine clock control logic
  media: aspeed: change irq to threaded irq
  media: aspeed: remove IRQF_SHARED flag
  media: aspeed: reduce noisy log printing outs
  media: aspeed: remove checking of VE_INTERRUPT_CAPTURE_COMPLETE
  media: aspeed: refine interrupt handling logic
  media: aspeed: remove source buffer allocation before mode detection
  media: aspeed: use different delays for triggering VE H/W reset
  media: aspeed: add a workaround to fix a silicon bug

 drivers/media/platform/aspeed-video.c | 156 ++++++++++++++------------
 1 file changed, 86 insertions(+), 70 deletions(-)

-- 
2.21.0


^ permalink raw reply

* [PATCH v2 11/11] media: aspeed: add a workaround to fix a silicon bug
From: Jae Hyun Yoo @ 2019-05-31 20:38 UTC (permalink / raw)
  To: linux-aspeed
In-Reply-To: <004c01d517ce$5fc22b00$1f468100$@aspeedtech.com>

Hi Ryan,

On 5/31/2019 9:32 AM, Ryan Chen wrote:
>>
>> On 5/24/19 6:17 PM, Jae Hyun Yoo wrote:
>>> AST2500 silicon revision A1 and A2 have a silicon bug which causes
>>> extremly long capturing time on specific resolutions (1680 width).
>>> To fix the bug, this commit adjusts the capturing window register
>>> setting to 1728 if detected width is 1680. The compression window
>>> register setting will be kept as the original width so output result
>>> will be the same.
>>
>>
>> This is a bit curious, why 1728 in particular? And what is the
>> behavior of the VE when the capture window is larger than the actual
>> source resolution?
> 
>> For an example, if resolution is 1680x1050, capturing operation takes very long time because VE has the silicon bug. So this patch adjusts the 'Capture Window' register slightly larger than >1680 to avoid the issue. As a result, source buffer will copy 1728x1050 frames from the original screen buffer but the image is still has valid information.
>> As the next step in compression phase, it will set the 'Compression Window' register as '1680x1050' so it will compress using the original image resolution which is a cropped image from the >'1728x1050' source buffer.
> 
>> You can compare results using these shell commands in Ubuntu GUI desktop.
> 
>> $ xrandr --newmode "1680x1050_60.00"  146.25  1680 1784 1960 1240  1050
>> 1053 1059 1089 -hsync +vsync
>> $ xrandr --addmode VGA-1 1680x1050_60.00 $ xrandr --output VGA-1 --mode 1680x1050_60.00
> 
>> I'm also curious about why that is 1728. Actually, this workaround was provided from the chip vendor, Aspeed, and they use this in their SDK code too. Let's check it to Ryan.
> 
> 
>> Hi Ryan,
> 
>> Can you please explain why that is 1728 in particular.
> 
>> Thanks,
>> Jae
> 
> That have two factor, one is data too huge cause the memory bandwidth is too busy.
> The other is vga resolution width is not align to 32 or 64 pixels (32bpp or 16bpp).
> Those will cause engine read latency time too long, maybe engine will hange.

Thanks a lot for the detail. I'll add it as an additional comment in
code.

Thanks,
Jae

> 
> Ryan
> 
>>
>> Thanks,
>>
>> Eddie
>>
>>
>>>
>>> Signed-off-by: Jae Hyun Yoo <jae.hyun.yoo@linux.intel.com>
>>> ---
>>> v1 -> v2:
>>>    New.
>>>
>>>    drivers/media/platform/aspeed-video.c | 26
>>> +++++++++++++++++++-------
>>>    1 file changed, 19 insertions(+), 7 deletions(-)
>>>
>>> diff --git a/drivers/media/platform/aspeed-video.c
>>> b/drivers/media/platform/aspeed-video.c
>>> index b05b073b63bc..f93989f532d6 100644
>>> --- a/drivers/media/platform/aspeed-video.c
>>> +++ b/drivers/media/platform/aspeed-video.c
>>> @@ -824,8 +824,27 @@ static void aspeed_video_set_resolution(struct
>>> aspeed_video *video)
>>>        struct v4l2_bt_timings *act = &video->active_timings;
>>>        unsigned int size = act->width * act->height;
>>> +    /* Set capture/compression frame sizes */
>>>        aspeed_video_calc_compressed_size(video, size);
>>> +    if (video->active_timings.width == 1680) {
>>> +        /*
>>> +         * This is a workaround to fix a silicon bug on A1 and A2
>>> +         * revisions. Since it doesn't break capturing operation on
>>> +A0
>>> +         * revision, use it for all revisions without checking the
>>> +         * revision ID.
>>> +         */
>>> +        aspeed_video_write(video, VE_CAP_WINDOW,
>>> +                   1728 << 16 | act->height);
>>> +        size += (1728 - 1680) * video->active_timings.height;
>>> +    } else {
>>> +        aspeed_video_write(video, VE_CAP_WINDOW,
>>> +                   act->width << 16 | act->height);
>>> +    }
>>> +    aspeed_video_write(video, VE_COMP_WINDOW,
>>> +               act->width << 16 | act->height);
>>> +    aspeed_video_write(video, VE_SRC_SCANLINE_OFFSET, act->width *
>>> +4);
>>> +
>>>        /* Don't use direct mode below 1024 x 768 (irqs don't fire) */
>>>        if (size < DIRECT_FETCH_THRESHOLD) {
>>>            aspeed_video_write(video, VE_TGS_0, @@ -842,13 +861,6 @@
>>> static void aspeed_video_set_resolution(struct
>>> aspeed_video *video)
>>>            aspeed_video_update(video, VE_CTRL, 0,
>>> VE_CTRL_DIRECT_FETCH);
>>>        }
>>> -    /* Set capture/compression frame sizes */
>>> -    aspeed_video_write(video, VE_CAP_WINDOW,
>>> -               act->width << 16 | act->height);
>>> -    aspeed_video_write(video, VE_COMP_WINDOW,
>>> -               act->width << 16 | act->height);
>>> -    aspeed_video_write(video, VE_SRC_SCANLINE_OFFSET, act->width *
>>> 4);
>>> -
>>>        size *= 4;
>>>        if (size == video->srcs[0].size / 2) {
>>
>>

^ permalink raw reply

* [PATCH dev-5.1] ARM: dts: aspeed: swift: Add VDD (IR35219) devices
From: Adriana Kobylak @ 2019-05-31 20:31 UTC (permalink / raw)
  To: linux-aspeed

From: Adriana Kobylak <anoo@us.ibm.com>

Add the VDD (IR35219) devices to the Swift device tree.

Signed-off-by: Adriana Kobylak <anoo@us.ibm.com>
---
 arch/arm/boot/dts/aspeed-bmc-opp-swift.dts | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/arch/arm/boot/dts/aspeed-bmc-opp-swift.dts b/arch/arm/boot/dts/aspeed-bmc-opp-swift.dts
index 270c923..8590e6b 100644
--- a/arch/arm/boot/dts/aspeed-bmc-opp-swift.dts
+++ b/arch/arm/boot/dts/aspeed-bmc-opp-swift.dts
@@ -723,6 +723,11 @@
 		reg = <0x4c>;
 	};
 
+	ir35219 at 70 {
+		compatible = "infineon,ir35219";
+		reg = <0x70>;
+	};
+
 	ir35221 at 71 {
 		compatible = "infineon,ir35221";
 		reg = <0x71>;
@@ -820,6 +825,11 @@
 		reg = <0x4c>;
 	};
 
+	ir35219 at 70 {
+		compatible = "infineon,ir35219";
+		reg = <0x70>;
+	};
+
 	ir35221 at 71 {
 		compatible = "infineon,ir35221";
 		reg = <0x71>;
-- 
1.8.3.1


^ permalink raw reply related

* [PATCH v2 11/11] media: aspeed: add a workaround to fix a silicon bug
From: Ryan Chen @ 2019-05-31 16:32 UTC (permalink / raw)
  To: linux-aspeed
In-Reply-To: <cd1814db-4892-bba0-027a-9f51cd49b9b5@linux.intel.com>

> 
> On 5/24/19 6:17 PM, Jae Hyun Yoo wrote:
>> AST2500 silicon revision A1 and A2 have a silicon bug which causes 
>> extremly long capturing time on specific resolutions (1680 width).
>> To fix the bug, this commit adjusts the capturing window register 
>> setting to 1728 if detected width is 1680. The compression window 
>> register setting will be kept as the original width so output result 
>> will be the same.
> 
> 
> This is a bit curious, why 1728 in particular? And what is the 
> behavior of the VE when the capture window is larger than the actual 
> source resolution?

>For an example, if resolution is 1680x1050, capturing operation takes very long time because VE has the silicon bug. So this patch adjusts the 'Capture Window' register slightly larger than >1680 to avoid the issue. As a result, source buffer will copy 1728x1050 frames from the original screen buffer but the image is still has valid information.
>As the next step in compression phase, it will set the 'Compression Window' register as '1680x1050' so it will compress using the original image resolution which is a cropped image from the >'1728x1050' source buffer.

>You can compare results using these shell commands in Ubuntu GUI desktop.

>$ xrandr --newmode "1680x1050_60.00"  146.25  1680 1784 1960 1240  1050
>1053 1059 1089 -hsync +vsync
>$ xrandr --addmode VGA-1 1680x1050_60.00 $ xrandr --output VGA-1 --mode 1680x1050_60.00

>I'm also curious about why that is 1728. Actually, this workaround was provided from the chip vendor, Aspeed, and they use this in their SDK code too. Let's check it to Ryan.


>Hi Ryan,

>Can you please explain why that is 1728 in particular.

>Thanks,
>Jae

That have two factor, one is data too huge cause the memory bandwidth is too busy.  
The other is vga resolution width is not align to 32 or 64 pixels (32bpp or 16bpp).
Those will cause engine read latency time too long, maybe engine will hange.

Ryan

> 
> Thanks,
> 
> Eddie
> 
> 
>>
>> Signed-off-by: Jae Hyun Yoo <jae.hyun.yoo@linux.intel.com>
>> ---
>> v1 -> v2:
>>   New.
>>
>>   drivers/media/platform/aspeed-video.c | 26 
>> +++++++++++++++++++-------
>>   1 file changed, 19 insertions(+), 7 deletions(-)
>>
>> diff --git a/drivers/media/platform/aspeed-video.c
>> b/drivers/media/platform/aspeed-video.c
>> index b05b073b63bc..f93989f532d6 100644
>> --- a/drivers/media/platform/aspeed-video.c
>> +++ b/drivers/media/platform/aspeed-video.c
>> @@ -824,8 +824,27 @@ static void aspeed_video_set_resolution(struct
>> aspeed_video *video)
>>       struct v4l2_bt_timings *act = &video->active_timings;
>>       unsigned int size = act->width * act->height;
>> +    /* Set capture/compression frame sizes */
>>       aspeed_video_calc_compressed_size(video, size);
>> +    if (video->active_timings.width == 1680) {
>> +        /*
>> +         * This is a workaround to fix a silicon bug on A1 and A2
>> +         * revisions. Since it doesn't break capturing operation on 
>> +A0
>> +         * revision, use it for all revisions without checking the
>> +         * revision ID.
>> +         */
>> +        aspeed_video_write(video, VE_CAP_WINDOW,
>> +                   1728 << 16 | act->height);
>> +        size += (1728 - 1680) * video->active_timings.height;
>> +    } else {
>> +        aspeed_video_write(video, VE_CAP_WINDOW,
>> +                   act->width << 16 | act->height);
>> +    }
>> +    aspeed_video_write(video, VE_COMP_WINDOW,
>> +               act->width << 16 | act->height);
>> +    aspeed_video_write(video, VE_SRC_SCANLINE_OFFSET, act->width * 
>> +4);
>> +
>>       /* Don't use direct mode below 1024 x 768 (irqs don't fire) */
>>       if (size < DIRECT_FETCH_THRESHOLD) {
>>           aspeed_video_write(video, VE_TGS_0, @@ -842,13 +861,6 @@ 
>> static void aspeed_video_set_resolution(struct
>> aspeed_video *video)
>>           aspeed_video_update(video, VE_CTRL, 0, 
>> VE_CTRL_DIRECT_FETCH);
>>       }
>> -    /* Set capture/compression frame sizes */
>> -    aspeed_video_write(video, VE_CAP_WINDOW,
>> -               act->width << 16 | act->height);
>> -    aspeed_video_write(video, VE_COMP_WINDOW,
>> -               act->width << 16 | act->height);
>> -    aspeed_video_write(video, VE_SRC_SCANLINE_OFFSET, act->width * 
>> 4);
>> -
>>       size *= 4;
>>       if (size == video->srcs[0].size / 2) {
> 
> 

^ permalink raw reply

* [PATCH v4] ARM: dts: aspeed: Add YADRO VESNIN BMC
From: Alexander Filippov @ 2019-05-31  9:09 UTC (permalink / raw)
  To: linux-aspeed

VESNIN is an OpenPower machine with an Aspeed 2400 BMC SoC manufactured
by YADRO.

Signed-off-by: Alexander Filippov <a.filippov@yadro.com>
---
 arch/arm/boot/dts/Makefile                  |   1 +
 arch/arm/boot/dts/aspeed-bmc-opp-vesnin.dts | 224 ++++++++++++++++++++
 2 files changed, 225 insertions(+)
 create mode 100644 arch/arm/boot/dts/aspeed-bmc-opp-vesnin.dts

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index dab2914fa293..64a956372fe1 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -1272,6 +1272,7 @@ dtb-$(CONFIG_ARCH_ASPEED) += \
 	aspeed-bmc-opp-lanyang.dtb \
 	aspeed-bmc-opp-palmetto.dtb \
 	aspeed-bmc-opp-romulus.dtb \
+	aspeed-bmc-opp-vesnin.dtb \
 	aspeed-bmc-opp-witherspoon.dtb \
 	aspeed-bmc-opp-zaius.dtb \
 	aspeed-bmc-portwell-neptune.dtb \
diff --git a/arch/arm/boot/dts/aspeed-bmc-opp-vesnin.dts b/arch/arm/boot/dts/aspeed-bmc-opp-vesnin.dts
new file mode 100644
index 000000000000..0b9e29c3212e
--- /dev/null
+++ b/arch/arm/boot/dts/aspeed-bmc-opp-vesnin.dts
@@ -0,0 +1,224 @@
+// SPDX-License-Identifier: GPL-2.0+
+// Copyright 2019 YADRO
+/dts-v1/;
+
+#include "aspeed-g4.dtsi"
+#include <dt-bindings/gpio/aspeed-gpio.h>
+
+/ {
+	model = "Vesnin BMC";
+	compatible = "yadro,vesnin-bmc", "aspeed,ast2400";
+
+	chosen {
+		stdout-path = &uart5;
+		bootargs = "console=ttyS4,115200 earlyprintk";
+	};
+
+	memory {
+		reg = <0x40000000 0x20000000>;
+	};
+
+	reserved-memory {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges;
+
+		vga_memory: framebuffer at 5f000000 {
+			no-map;
+			reg = <0x5f000000 0x01000000>; /* 16MB */
+		};
+		flash_memory: region at 5c000000 {
+			no-map;
+			reg = <0x5c000000 0x02000000>; /* 32M */
+		};
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		heartbeat {
+			gpios = <&gpio ASPEED_GPIO(R, 4) GPIO_ACTIVE_LOW>;
+		};
+		power_red {
+			gpios = <&gpio ASPEED_GPIO(N, 1) GPIO_ACTIVE_LOW>;
+		};
+
+		id_blue {
+			gpios = <&gpio ASPEED_GPIO(O, 0) GPIO_ACTIVE_LOW>;
+		};
+
+		alarm_red {
+			gpios = <&gpio ASPEED_GPIO(N, 6) GPIO_ACTIVE_LOW>;
+		};
+
+		alarm_yel {
+			gpios = <&gpio ASPEED_GPIO(N, 7) GPIO_ACTIVE_HIGH>;
+		};
+	};
+
+	gpio-keys {
+		compatible = "gpio-keys";
+
+		button_checkstop {
+			label = "checkstop";
+			linux,code = <74>;
+			gpios = <&gpio ASPEED_GPIO(P, 5) GPIO_ACTIVE_LOW>;
+		};
+
+		button_identify {
+			label = "identify";
+			linux,code = <152>;
+			gpios = <&gpio ASPEED_GPIO(O, 7) GPIO_ACTIVE_LOW>;
+		};
+	};
+};
+
+&fmc {
+	status = "okay";
+	flash at 0 {
+		status = "okay";
+		m25p,fast-read;
+        label = "bmc";
+#include "openbmc-flash-layout.dtsi"
+	};
+};
+
+&spi {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_spi1debug_default>;
+
+	flash at 0 {
+		status = "okay";
+		label = "pnor";
+		m25p,fast-read;
+	};
+};
+
+&mac0 {
+	status = "okay";
+
+	use-ncsi;
+	no-hw-checksum;
+
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_rmii1_default>;
+};
+
+
+&uart5 {
+	status = "okay";
+};
+
+&lpc_ctrl {
+	status = "okay";
+	memory-region = <&flash_memory>;
+	flash = <&spi>;
+};
+
+&ibt {
+	status = "okay";
+};
+
+&uart3 {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_txd2_default &pinctrl_rxd2_default>;
+};
+
+&i2c0 {
+	status = "okay";
+
+	eeprom at 50 {
+		compatible = "atmel,24c256";
+		reg = <0x50>;
+		pagesize = <64>;
+	};
+};
+
+&i2c1 {
+	status = "okay";
+
+	tmp75 at 49 {
+		compatible = "ti,tmp75";
+		reg = <0x49>;
+	};
+};
+
+&i2c2 {
+	status = "okay";
+};
+
+&i2c3 {
+	status = "okay";
+};
+
+&i2c4 {
+	status = "okay";
+
+	occ-hwmon at 50 {
+		compatible = "ibm,p8-occ-hwmon";
+		reg = <0x50>;
+	};
+};
+
+&i2c5 {
+	status = "okay";
+
+	occ-hwmon at 51 {
+		compatible = "ibm,p8-occ-hwmon";
+		reg = <0x51>;
+	};
+};
+
+&i2c6 {
+	status = "okay";
+
+	w83795g at 2f {
+		compatible = "nuvoton,w83795g";
+		reg = <0x2f>;
+	};
+};
+
+&i2c7 {
+	status = "okay";
+
+	occ-hwmon at 56 {
+		compatible = "ibm,p8-occ-hwmon";
+		reg = <0x56>;
+	};
+};
+
+&i2c9 {
+	status = "okay";
+};
+
+&i2c10 {
+	status = "okay";
+};
+
+&i2c11 {
+	status = "okay";
+
+	occ-hwmon at 57 {
+		compatible = "ibm,p8-occ-hwmon";
+		reg = <0x57>;
+	};
+};
+
+&i2c12 {
+	status = "okay";
+
+	rtc at 68 {
+		compatible = "maxim,ds3231";
+		reg = <0x68>;
+	};
+};
+
+&i2c13 {
+	status = "okay";
+};
+
+&vuart {
+	status = "okay";
+};
-- 
2.20.1


^ permalink raw reply related

* [PATCH v3] ARM: dts: aspeed: Add YADRO VESNIN BMC
From: Alexander A. Filippov @ 2019-05-31  9:07 UTC (permalink / raw)
  To: linux-aspeed
In-Reply-To: <2966b961-77ca-4371-949c-195b623e344b@www.fastmail.com>

On Fri, May 31, 2019 at 04:02:37PM +0930, Andrew Jeffery wrote:
> Hello Alexander,

Hi Andrew,

> 
> On Fri, 31 May 2019, at 15:42, Alexander Filippov wrote:
> > VESNIN is an OpenPower machine with an Aspeed 2400 BMC SoC manufactured
> > by YADRO.
> > 
> > Signed-off-by: Alexander Filippov <a.filippov@yadro.com>
> > ---
> >  arch/arm/boot/dts/Makefile                  |   1 +
> >  arch/arm/boot/dts/aspeed-bmc-opp-vesnin.dts | 234 ++++++++++++++++++++
> >  2 files changed, 235 insertions(+)
> >  create mode 100644 arch/arm/boot/dts/aspeed-bmc-opp-vesnin.dts
> > 
> > diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
> > index 834cce80d1b8..09a851a4705c 100644
> > --- a/arch/arm/boot/dts/Makefile
> > +++ b/arch/arm/boot/dts/Makefile
> > @@ -1261,6 +1261,7 @@ dtb-$(CONFIG_ARCH_ASPEED) += \
> >  	aspeed-bmc-opp-palmetto.dtb \
> >  	aspeed-bmc-opp-romulus.dtb \
> >  	aspeed-bmc-opp-swift.dtb \
> > +	aspeed-bmc-opp-vesnin.dtb \
> 
> The patch doesn't apply to upstream - the Swift machine only exists in the
> OpenBMC kernel tree. Please rebase the patch onto upstream and resend.

Done.

> 
> >  	aspeed-bmc-opp-witherspoon.dtb \
> >  	aspeed-bmc-opp-zaius.dtb \
> >  	aspeed-bmc-portwell-neptune.dtb \
> > diff --git a/arch/arm/boot/dts/aspeed-bmc-opp-vesnin.dts 
> > b/arch/arm/boot/dts/aspeed-bmc-opp-vesnin.dts
> > new file mode 100644
> > index 000000000000..20f07f5bb4f4
> > --- /dev/null
> > +++ b/arch/arm/boot/dts/aspeed-bmc-opp-vesnin.dts
> > @@ -0,0 +1,234 @@
> > +// SPDX-License-Identifier: GPL-2.0+
> > +// Copyright 2019 YADRO
> > +/dts-v1/;
> > +
> > +#include "aspeed-g4.dtsi"
> > +#include <dt-bindings/gpio/aspeed-gpio.h>
> > +
> > +/ {
> > +	model = "Vesnin BMC";
> > +	compatible = "yadro,vesnin-bmc", "aspeed,ast2400";
> > +
> > +	chosen {
> > +		stdout-path = &uart5;
> > +		bootargs = "console=ttyS4,115200 earlyprintk";
> > +	};
> > +
> > +	memory {
> > +		reg = <0x40000000 0x20000000>;
> > +	};
> > +
> > +	reserved-memory {
> > +		#address-cells = <1>;
> > +		#size-cells = <1>;
> > +		ranges;
> > +
> > +		vga_memory: framebuffer at 5f000000 {
> > +			no-map;
> > +			reg = <0x5f000000 0x01000000>; /* 16MB */
> > +		};
> > +		flash_memory: region at 5c000000 {
> > +			no-map;
> > +			reg = <0x5c000000 0x02000000>; /* 32M */
> > +		};
> > +	};
> > +
> > +	leds {
> > +		compatible = "gpio-leds";
> > +
> > +		heartbeat {
> > +			gpios = <&gpio ASPEED_GPIO(R, 4) GPIO_ACTIVE_LOW>;
> > +		};
> > +		power_red {
> > +			gpios = <&gpio ASPEED_GPIO(N, 1) GPIO_ACTIVE_LOW>;
> > +		};
> > +
> > +		id_blue {
> > +			gpios = <&gpio ASPEED_GPIO(O, 0) GPIO_ACTIVE_LOW>;
> > +		};
> > +
> > +		alarm_red {
> > +			gpios = <&gpio ASPEED_GPIO(N, 6) GPIO_ACTIVE_LOW>;
> > +		};
> > +
> > +		alarm_yel {
> > +			gpios = <&gpio ASPEED_GPIO(N, 7) GPIO_ACTIVE_HIGH>;
> > +		};
> > +	};
> > +
> > +	gpio-keys {
> > +		compatible = "gpio-keys";
> > +
> > +		button_checkstop {
> > +			label = "checkstop";
> > +			linux,code = <74>;
> > +			gpios = <&gpio ASPEED_GPIO(P, 5) GPIO_ACTIVE_LOW>;
> > +		};
> > +
> > +		button_identify {
> > +			label = "identify";
> > +			linux,code = <152>;
> > +			gpios = <&gpio ASPEED_GPIO(O, 7) GPIO_ACTIVE_LOW>;
> > +		};
> > +	};
> > +};
> > +
> > +&fmc {
> > +	status = "okay";
> > +	flash at 0 {
> > +		status = "okay";
> > +		m25p,fast-read;
> > +        label = "bmc";
> > +#include "openbmc-flash-layout.dtsi"
> > +	};
> > +};
> > +
> > +&spi {
> > +	status = "okay";
> > +	pinctrl-names = "default";
> > +	pinctrl-0 = <&pinctrl_spi1debug_default>;
> 
> Is this how the board is strapped? I'm asking in case it's just copy/paste
> from Palmetto, which was (unfortunately) strapped this way.

Yes, the board is strapped in such manner.
I guess it was brought from barreleye which was a prototype for vesnin.

Setting this pin to &pinctrl_spi1_default leads to warning:
  kernel: aspeed-smc 1e630000.spi: Error applying setting, reverse things back

> 
> > +
> > +	flash at 0 {
> > +		status = "okay";
> > +		label = "pnor";
> > +		m25p,fast-read;
> > +	};
> > +};
> > +
> > +&mac0 {
> > +	status = "okay";
> > +
> > +	use-ncsi;
> > +	no-hw-checksum;
> > +
> > +	pinctrl-names = "default";
> > +	pinctrl-0 = <&pinctrl_rmii1_default>;
> > +};
> > +
> > +
> > +&uart5 {
> > +	status = "okay";
> > +};
> > +
> > +&lpc_ctrl {
> > +	status = "okay";
> > +	memory-region = <&flash_memory>;
> > +	flash = <&spi>;
> > +};
> > +
> > +&ibt {
> > +	status = "okay";
> > +};
> > +
> > +&lpc_host {
> > +    sio_regs: regs {
> > +        compatible = "aspeed,bmc-misc";
> 
> The patches for this are not upstream, and won't make it in their current
> form. Please drop this node from the patch.
> 

Done.

> > +    };
> > +};
> > +
> > +&mbox {
> > +	status = "okay";
> 
> This driver is not upstream either, and we plan on dropping it from the
> OpenBMC tree too. Please remove this node from the patch.

Done.

> 
> Cheers,
> 
> Andrew
> 
> > +};
> > +
> > +&uart3 {
> > +	status = "okay";
> > +	pinctrl-names = "default";
> > +	pinctrl-0 = <&pinctrl_txd2_default &pinctrl_rxd2_default>;
> > +};
> > +
> > +&i2c0 {
> > +	status = "okay";
> > +
> > +	eeprom at 50 {
> > +		compatible = "atmel,24c256";
> > +		reg = <0x50>;
> > +		pagesize = <64>;
> > +	};
> > +};
> > +
> > +&i2c1 {
> > +	status = "okay";
> > +
> > +	tmp75 at 49 {
> > +		compatible = "ti,tmp75";
> > +		reg = <0x49>;
> > +	};
> > +};
> > +
> > +&i2c2 {
> > +	status = "okay";
> > +};
> > +
> > +&i2c3 {
> > +	status = "okay";
> > +};
> > +
> > +&i2c4 {
> > +	status = "okay";
> > +
> > +	occ-hwmon at 50 {
> > +		compatible = "ibm,p8-occ-hwmon";
> > +		reg = <0x50>;
> > +	};
> > +};
> > +
> > +&i2c5 {
> > +	status = "okay";
> > +
> > +	occ-hwmon at 51 {
> > +		compatible = "ibm,p8-occ-hwmon";
> > +		reg = <0x51>;
> > +	};
> > +};
> > +
> > +&i2c6 {
> > +	status = "okay";
> > +
> > +	w83795g at 2f {
> > +		compatible = "nuvoton,w83795g";
> > +		reg = <0x2f>;
> > +	};
> > +};
> > +
> > +&i2c7 {
> > +	status = "okay";
> > +
> > +	occ-hwmon at 56 {
> > +		compatible = "ibm,p8-occ-hwmon";
> > +		reg = <0x56>;
> > +	};
> > +};
> > +
> > +&i2c9 {
> > +	status = "okay";
> > +};
> > +
> > +&i2c10 {
> > +	status = "okay";
> > +};
> > +
> > +&i2c11 {
> > +	status = "okay";
> > +
> > +	occ-hwmon at 57 {
> > +		compatible = "ibm,p8-occ-hwmon";
> > +		reg = <0x57>;
> > +	};
> > +};
> > +
> > +&i2c12 {
> > +	status = "okay";
> > +
> > +	rtc at 68 {
> > +		compatible = "maxim,ds3231";
> > +		reg = <0x68>;
> > +	};
> > +};
> > +
> > +&i2c13 {
> > +	status = "okay";
> > +};
> > +
> > +&vuart {
> > +	status = "okay";
> > +};
> > -- 
> > 2.20.1
> > 
> >

^ permalink raw reply

* [PATCH v2] ARM: dts: aspeed: g4: add video engine support
From: Andrew Jeffery @ 2019-05-31  7:59 UTC (permalink / raw)
  To: linux-aspeed
In-Reply-To: <20190530093544.12215-1-a.filippov@yadro.com>



On Thu, 30 May 2019, at 19:06, Alexander Filippov wrote:
> Add a node to describe the video engine on AST2400.
> 
> These changes were copied from aspeed-g5.dtsi
> 
> Signed-off-by: Alexander Filippov <a.filippov@yadro.com>

Reviewed-by: Andrew Jeffery <andrew@aj.id.au>

> ---
>  arch/arm/boot/dts/aspeed-g4.dtsi | 10 ++++++++++
>  1 file changed, 10 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/aspeed-g4.dtsi b/arch/arm/boot/dts/aspeed-g4.dtsi
> index 6011692df15a..5a9e3f684359 100644
> --- a/arch/arm/boot/dts/aspeed-g4.dtsi
> +++ b/arch/arm/boot/dts/aspeed-g4.dtsi
> @@ -195,6 +195,16 @@
>  				reg = <0x1e720000 0x8000>;	// 32K
>  			};
>  
> +			video: video at 1e700000 {
> +				compatible = "aspeed,ast2400-video-engine";
> +				reg = <0x1e700000 0x1000>;
> +				clocks = <&syscon ASPEED_CLK_GATE_VCLK>,
> +					 <&syscon ASPEED_CLK_GATE_ECLK>;
> +				clock-names = "vclk", "eclk";
> +				interrupts = <7>;
> +				status = "disabled";
> +			};
> +
>  			gpio: gpio at 1e780000 {
>  				#gpio-cells = <2>;
>  				gpio-controller;
> -- 
> 2.20.1
> 
>

^ permalink raw reply

* [PATCH v3] ARM: dts: aspeed: Add YADRO VESNIN BMC
From: Andrew Jeffery @ 2019-05-31  6:32 UTC (permalink / raw)
  To: linux-aspeed
In-Reply-To: <20190531061207.23079-1-a.filippov@yadro.com>

Hello Alexander,

On Fri, 31 May 2019, at 15:42, Alexander Filippov wrote:
> VESNIN is an OpenPower machine with an Aspeed 2400 BMC SoC manufactured
> by YADRO.
> 
> Signed-off-by: Alexander Filippov <a.filippov@yadro.com>
> ---
>  arch/arm/boot/dts/Makefile                  |   1 +
>  arch/arm/boot/dts/aspeed-bmc-opp-vesnin.dts | 234 ++++++++++++++++++++
>  2 files changed, 235 insertions(+)
>  create mode 100644 arch/arm/boot/dts/aspeed-bmc-opp-vesnin.dts
> 
> diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
> index 834cce80d1b8..09a851a4705c 100644
> --- a/arch/arm/boot/dts/Makefile
> +++ b/arch/arm/boot/dts/Makefile
> @@ -1261,6 +1261,7 @@ dtb-$(CONFIG_ARCH_ASPEED) += \
>  	aspeed-bmc-opp-palmetto.dtb \
>  	aspeed-bmc-opp-romulus.dtb \
>  	aspeed-bmc-opp-swift.dtb \
> +	aspeed-bmc-opp-vesnin.dtb \

The patch doesn't apply to upstream - the Swift machine only exists in the
OpenBMC kernel tree. Please rebase the patch onto upstream and resend.

>  	aspeed-bmc-opp-witherspoon.dtb \
>  	aspeed-bmc-opp-zaius.dtb \
>  	aspeed-bmc-portwell-neptune.dtb \
> diff --git a/arch/arm/boot/dts/aspeed-bmc-opp-vesnin.dts 
> b/arch/arm/boot/dts/aspeed-bmc-opp-vesnin.dts
> new file mode 100644
> index 000000000000..20f07f5bb4f4
> --- /dev/null
> +++ b/arch/arm/boot/dts/aspeed-bmc-opp-vesnin.dts
> @@ -0,0 +1,234 @@
> +// SPDX-License-Identifier: GPL-2.0+
> +// Copyright 2019 YADRO
> +/dts-v1/;
> +
> +#include "aspeed-g4.dtsi"
> +#include <dt-bindings/gpio/aspeed-gpio.h>
> +
> +/ {
> +	model = "Vesnin BMC";
> +	compatible = "yadro,vesnin-bmc", "aspeed,ast2400";
> +
> +	chosen {
> +		stdout-path = &uart5;
> +		bootargs = "console=ttyS4,115200 earlyprintk";
> +	};
> +
> +	memory {
> +		reg = <0x40000000 0x20000000>;
> +	};
> +
> +	reserved-memory {
> +		#address-cells = <1>;
> +		#size-cells = <1>;
> +		ranges;
> +
> +		vga_memory: framebuffer at 5f000000 {
> +			no-map;
> +			reg = <0x5f000000 0x01000000>; /* 16MB */
> +		};
> +		flash_memory: region at 5c000000 {
> +			no-map;
> +			reg = <0x5c000000 0x02000000>; /* 32M */
> +		};
> +	};
> +
> +	leds {
> +		compatible = "gpio-leds";
> +
> +		heartbeat {
> +			gpios = <&gpio ASPEED_GPIO(R, 4) GPIO_ACTIVE_LOW>;
> +		};
> +		power_red {
> +			gpios = <&gpio ASPEED_GPIO(N, 1) GPIO_ACTIVE_LOW>;
> +		};
> +
> +		id_blue {
> +			gpios = <&gpio ASPEED_GPIO(O, 0) GPIO_ACTIVE_LOW>;
> +		};
> +
> +		alarm_red {
> +			gpios = <&gpio ASPEED_GPIO(N, 6) GPIO_ACTIVE_LOW>;
> +		};
> +
> +		alarm_yel {
> +			gpios = <&gpio ASPEED_GPIO(N, 7) GPIO_ACTIVE_HIGH>;
> +		};
> +	};
> +
> +	gpio-keys {
> +		compatible = "gpio-keys";
> +
> +		button_checkstop {
> +			label = "checkstop";
> +			linux,code = <74>;
> +			gpios = <&gpio ASPEED_GPIO(P, 5) GPIO_ACTIVE_LOW>;
> +		};
> +
> +		button_identify {
> +			label = "identify";
> +			linux,code = <152>;
> +			gpios = <&gpio ASPEED_GPIO(O, 7) GPIO_ACTIVE_LOW>;
> +		};
> +	};
> +};
> +
> +&fmc {
> +	status = "okay";
> +	flash at 0 {
> +		status = "okay";
> +		m25p,fast-read;
> +        label = "bmc";
> +#include "openbmc-flash-layout.dtsi"
> +	};
> +};
> +
> +&spi {
> +	status = "okay";
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_spi1debug_default>;

Is this how the board is strapped? I'm asking in case it's just copy/paste
from Palmetto, which was (unfortunately) strapped this way.

> +
> +	flash at 0 {
> +		status = "okay";
> +		label = "pnor";
> +		m25p,fast-read;
> +	};
> +};
> +
> +&mac0 {
> +	status = "okay";
> +
> +	use-ncsi;
> +	no-hw-checksum;
> +
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_rmii1_default>;
> +};
> +
> +
> +&uart5 {
> +	status = "okay";
> +};
> +
> +&lpc_ctrl {
> +	status = "okay";
> +	memory-region = <&flash_memory>;
> +	flash = <&spi>;
> +};
> +
> +&ibt {
> +	status = "okay";
> +};
> +
> +&lpc_host {
> +    sio_regs: regs {
> +        compatible = "aspeed,bmc-misc";

The patches for this are not upstream, and won't make it in their current
form. Please drop this node from the patch.

> +    };
> +};
> +
> +&mbox {
> +	status = "okay";

This driver is not upstream either, and we plan on dropping it from the
OpenBMC tree too. Please remove this node from the patch.

Cheers,

Andrew

> +};
> +
> +&uart3 {
> +	status = "okay";
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_txd2_default &pinctrl_rxd2_default>;
> +};
> +
> +&i2c0 {
> +	status = "okay";
> +
> +	eeprom at 50 {
> +		compatible = "atmel,24c256";
> +		reg = <0x50>;
> +		pagesize = <64>;
> +	};
> +};
> +
> +&i2c1 {
> +	status = "okay";
> +
> +	tmp75 at 49 {
> +		compatible = "ti,tmp75";
> +		reg = <0x49>;
> +	};
> +};
> +
> +&i2c2 {
> +	status = "okay";
> +};
> +
> +&i2c3 {
> +	status = "okay";
> +};
> +
> +&i2c4 {
> +	status = "okay";
> +
> +	occ-hwmon at 50 {
> +		compatible = "ibm,p8-occ-hwmon";
> +		reg = <0x50>;
> +	};
> +};
> +
> +&i2c5 {
> +	status = "okay";
> +
> +	occ-hwmon at 51 {
> +		compatible = "ibm,p8-occ-hwmon";
> +		reg = <0x51>;
> +	};
> +};
> +
> +&i2c6 {
> +	status = "okay";
> +
> +	w83795g at 2f {
> +		compatible = "nuvoton,w83795g";
> +		reg = <0x2f>;
> +	};
> +};
> +
> +&i2c7 {
> +	status = "okay";
> +
> +	occ-hwmon at 56 {
> +		compatible = "ibm,p8-occ-hwmon";
> +		reg = <0x56>;
> +	};
> +};
> +
> +&i2c9 {
> +	status = "okay";
> +};
> +
> +&i2c10 {
> +	status = "okay";
> +};
> +
> +&i2c11 {
> +	status = "okay";
> +
> +	occ-hwmon at 57 {
> +		compatible = "ibm,p8-occ-hwmon";
> +		reg = <0x57>;
> +	};
> +};
> +
> +&i2c12 {
> +	status = "okay";
> +
> +	rtc at 68 {
> +		compatible = "maxim,ds3231";
> +		reg = <0x68>;
> +	};
> +};
> +
> +&i2c13 {
> +	status = "okay";
> +};
> +
> +&vuart {
> +	status = "okay";
> +};
> -- 
> 2.20.1
> 
>

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