* [U-Boot] [PATCH] i2c: mxc: add CONFIG_CLK support
@ 2019-08-06 10:09 Peng Fan
2019-08-07 10:09 ` Ye Li
` (2 more replies)
0 siblings, 3 replies; 6+ messages in thread
From: Peng Fan @ 2019-08-06 10:09 UTC (permalink / raw)
To: u-boot
When CONFIG_CLK enabled, use CLK UCLASS for clk related settings.
Signed-off-by: Peng Fan <peng.fan@nxp.com>
---
arch/arm/include/asm/mach-imx/mxc_i2c.h | 6 ++++++
drivers/i2c/mxc_i2c.c | 17 +++++++++++++++++
2 files changed, 23 insertions(+)
diff --git a/arch/arm/include/asm/mach-imx/mxc_i2c.h b/arch/arm/include/asm/mach-imx/mxc_i2c.h
index 8e1ea9af19..81fd981444 100644
--- a/arch/arm/include/asm/mach-imx/mxc_i2c.h
+++ b/arch/arm/include/asm/mach-imx/mxc_i2c.h
@@ -6,6 +6,9 @@
#define __ASM_ARCH_MXC_MXC_I2C_H__
#include <asm-generic/gpio.h>
#include <asm/mach-imx/iomux-v3.h>
+#if CONFIG_IS_ENABLED(CLK)
+#include <clk.h>
+#endif
struct i2c_pin_ctrl {
iomux_v3_cfg_t i2c_mode;
@@ -47,6 +50,9 @@ struct mxc_i2c_bus {
ulong driver_data;
int speed;
struct i2c_pads_info *pads_info;
+#if CONFIG_IS_ENABLED(CLK)
+ struct clk per_clk;
+#endif
#ifndef CONFIG_DM_I2C
int (*idle_bus_fn)(void *p);
void *idle_bus_data;
diff --git a/drivers/i2c/mxc_i2c.c b/drivers/i2c/mxc_i2c.c
index 23119cce65..2e157bca58 100644
--- a/drivers/i2c/mxc_i2c.c
+++ b/drivers/i2c/mxc_i2c.c
@@ -890,9 +890,22 @@ static int mxc_i2c_probe(struct udevice *bus)
i2c_bus->bus = bus;
/* Enable clk */
+#if CONFIG_IS_ENABLED(CLK)
+ ret = clk_get_by_index(bus, 0, &i2c_bus->per_clk);
+ if (ret) {
+ printf("Failed to get i2c clk\n");
+ return ret;
+ }
+ ret = clk_enable(&i2c_bus->per_clk);
+ if (ret) {
+ printf("Failed to enable i2c clk\n");
+ return ret;
+ }
+#else
ret = enable_i2c_clk(1, bus->seq);
if (ret < 0)
return ret;
+#endif
/*
* See Documentation/devicetree/bindings/i2c/i2c-imx.txt
@@ -919,7 +932,11 @@ static int mxc_i2c_probe(struct udevice *bus)
ret = i2c_idle_bus(i2c_bus);
if (ret < 0) {
/* Disable clk */
+#if CONFIG_IS_ENABLED(CLK)
+ clk_disable(&i2c_bus->per_clk);
+#else
enable_i2c_clk(0, bus->seq);
+#endif
return ret;
}
--
2.16.4
^ permalink raw reply related [flat|nested] 6+ messages in thread
* [U-Boot] [PATCH] i2c: mxc: add CONFIG_CLK support
2019-08-06 10:09 [U-Boot] [PATCH] i2c: mxc: add CONFIG_CLK support Peng Fan
@ 2019-08-07 10:09 ` Ye Li
2019-08-07 13:49 ` Schrempf Frieder
2019-08-08 7:04 ` Lukasz Majewski
2 siblings, 0 replies; 6+ messages in thread
From: Ye Li @ 2019-08-07 10:09 UTC (permalink / raw)
To: u-boot
> When CONFIG_CLK enabled, use CLK UCLASS for clk related settings.
>
> Signed-off-by: Peng Fan <peng.fan@nxp.com>
> ---
> arch/arm/include/asm/mach-imx/mxc_i2c.h | 6 ++++++
> drivers/i2c/mxc_i2c.c | 17 +++++++++++++++++
> 2 files changed, 23 insertions(+)
>
> diff --git a/arch/arm/include/asm/mach-imx/mxc_i2c.h b/arch/arm/include/asm/mach-imx/mxc_i2c.h
> index 8e1ea9af19..81fd981444 100644
> --- a/arch/arm/include/asm/mach-imx/mxc_i2c.h
> +++ b/arch/arm/include/asm/mach-imx/mxc_i2c.h
> @@ -6,6 +6,9 @@
> #define __ASM_ARCH_MXC_MXC_I2C_H__
> #include <asm-generic/gpio.h>
> #include <asm/mach-imx/iomux-v3.h>
> +#if CONFIG_IS_ENABLED(CLK)
> +#include <clk.h>
> +#endif
>
> struct i2c_pin_ctrl {
> iomux_v3_cfg_t i2c_mode;
> @@ -47,6 +50,9 @@ struct mxc_i2c_bus {
> ulong driver_data;
> int speed;
> struct i2c_pads_info *pads_info;
> +#if CONFIG_IS_ENABLED(CLK)
> + struct clk per_clk;
> +#endif
> #ifndef CONFIG_DM_I2C
> int (*idle_bus_fn)(void *p);
> void *idle_bus_data;
> diff --git a/drivers/i2c/mxc_i2c.c b/drivers/i2c/mxc_i2c.c
> index 23119cce65..2e157bca58 100644
> --- a/drivers/i2c/mxc_i2c.c
> +++ b/drivers/i2c/mxc_i2c.c
> @@ -890,9 +890,22 @@ static int mxc_i2c_probe(struct udevice *bus)
> i2c_bus->bus = bus;
>
> /* Enable clk */
> +#if CONFIG_IS_ENABLED(CLK)
> + ret = clk_get_by_index(bus, 0, &i2c_bus->per_clk);
> + if (ret) {
> + printf("Failed to get i2c clk\n");
> + return ret;
> + }
> + ret = clk_enable(&i2c_bus->per_clk);
> + if (ret) {
> + printf("Failed to enable i2c clk\n");
> + return ret;
> + }
> +#else
> ret = enable_i2c_clk(1, bus->seq);
> if (ret < 0)
> return ret;
> +#endif
>
> /*
> * See Documentation/devicetree/bindings/i2c/i2c-imx.txt
> @@ -919,7 +932,11 @@ static int mxc_i2c_probe(struct udevice *bus)
> ret = i2c_idle_bus(i2c_bus);
> if (ret < 0) {
> /* Disable clk */
> +#if CONFIG_IS_ENABLED(CLK)
> + clk_disable(&i2c_bus->per_clk);
> +#else
> enable_i2c_clk(0, bus->seq);
> +#endif
> return ret;
> }
Reviewed-by: Ye Li <ye.li@nxp.com>
Best regards,
Ye Li
>
>
^ permalink raw reply [flat|nested] 6+ messages in thread
* [U-Boot] [PATCH] i2c: mxc: add CONFIG_CLK support
2019-08-06 10:09 [U-Boot] [PATCH] i2c: mxc: add CONFIG_CLK support Peng Fan
2019-08-07 10:09 ` Ye Li
@ 2019-08-07 13:49 ` Schrempf Frieder
2019-08-08 1:44 ` Peng Fan
2019-08-08 7:04 ` Lukasz Majewski
2 siblings, 1 reply; 6+ messages in thread
From: Schrempf Frieder @ 2019-08-07 13:49 UTC (permalink / raw)
To: u-boot
Hi Peng,
On 06.08.19 12:09, Peng Fan wrote:
> When CONFIG_CLK enabled, use CLK UCLASS for clk related settings.
>
> Signed-off-by: Peng Fan <peng.fan@nxp.com>
> ---
> arch/arm/include/asm/mach-imx/mxc_i2c.h | 6 ++++++
> drivers/i2c/mxc_i2c.c | 17 +++++++++++++++++
> 2 files changed, 23 insertions(+)
>
> diff --git a/arch/arm/include/asm/mach-imx/mxc_i2c.h b/arch/arm/include/asm/mach-imx/mxc_i2c.h
> index 8e1ea9af19..81fd981444 100644
> --- a/arch/arm/include/asm/mach-imx/mxc_i2c.h
> +++ b/arch/arm/include/asm/mach-imx/mxc_i2c.h
> @@ -6,6 +6,9 @@
> #define __ASM_ARCH_MXC_MXC_I2C_H__
> #include <asm-generic/gpio.h>
> #include <asm/mach-imx/iomux-v3.h>
> +#if CONFIG_IS_ENABLED(CLK)
> +#include <clk.h>
> +#endif
>
> struct i2c_pin_ctrl {
> iomux_v3_cfg_t i2c_mode;
> @@ -47,6 +50,9 @@ struct mxc_i2c_bus {
> ulong driver_data;
> int speed;
> struct i2c_pads_info *pads_info;
> +#if CONFIG_IS_ENABLED(CLK)
> + struct clk per_clk;
> +#endif
> #ifndef CONFIG_DM_I2C
> int (*idle_bus_fn)(void *p);
> void *idle_bus_data;
> diff --git a/drivers/i2c/mxc_i2c.c b/drivers/i2c/mxc_i2c.c
> index 23119cce65..2e157bca58 100644
> --- a/drivers/i2c/mxc_i2c.c
> +++ b/drivers/i2c/mxc_i2c.c
I already commented on a previous version of this patch and the
following change is still missing here:
@@ -149,7 +149,11 @@ static uint8_t i2c_imx_get_clk(struct mxc_i2c_bus
*i2c_bus, unsigned int rate)
#endif
/* Divider value calculation */
+#if CONFIG_IS_ENABLED(CLK)
+ i2c_clk_rate = clk_get_rate(&i2c_bus->per_clk);
+#else
i2c_clk_rate = mxc_get_clock(MXC_I2C_CLK);
+#endif
div = (i2c_clk_rate + rate - 1) / rate;
if (div < i2c_clk_div[0][0])
clk_div = 0;
Regards,
Frieder
> @@ -890,9 +890,22 @@ static int mxc_i2c_probe(struct udevice *bus)
> i2c_bus->bus = bus;
>
> /* Enable clk */
> +#if CONFIG_IS_ENABLED(CLK)
> + ret = clk_get_by_index(bus, 0, &i2c_bus->per_clk);
> + if (ret) {
> + printf("Failed to get i2c clk\n");
> + return ret;
> + }
> + ret = clk_enable(&i2c_bus->per_clk);
> + if (ret) {
> + printf("Failed to enable i2c clk\n");
> + return ret;
> + }
> +#else
> ret = enable_i2c_clk(1, bus->seq);
> if (ret < 0)
> return ret;
> +#endif
>
> /*
> * See Documentation/devicetree/bindings/i2c/i2c-imx.txt
> @@ -919,7 +932,11 @@ static int mxc_i2c_probe(struct udevice *bus)
> ret = i2c_idle_bus(i2c_bus);
> if (ret < 0) {
> /* Disable clk */
> +#if CONFIG_IS_ENABLED(CLK)
> + clk_disable(&i2c_bus->per_clk);
> +#else
> enable_i2c_clk(0, bus->seq);
> +#endif
> return ret;
> }
>
>
^ permalink raw reply [flat|nested] 6+ messages in thread
* [U-Boot] [PATCH] i2c: mxc: add CONFIG_CLK support
2019-08-07 13:49 ` Schrempf Frieder
@ 2019-08-08 1:44 ` Peng Fan
0 siblings, 0 replies; 6+ messages in thread
From: Peng Fan @ 2019-08-08 1:44 UTC (permalink / raw)
To: u-boot
Hi Schrempf,
> Subject: Re: [U-Boot] [PATCH] i2c: mxc: add CONFIG_CLK support
>
> Hi Peng,
>
> On 06.08.19 12:09, Peng Fan wrote:
> > When CONFIG_CLK enabled, use CLK UCLASS for clk related settings.
> >
> > Signed-off-by: Peng Fan <peng.fan@nxp.com>
> > ---
> > arch/arm/include/asm/mach-imx/mxc_i2c.h | 6 ++++++
> > drivers/i2c/mxc_i2c.c | 17 +++++++++++++++++
> > 2 files changed, 23 insertions(+)
> >
> > diff --git a/arch/arm/include/asm/mach-imx/mxc_i2c.h
> > b/arch/arm/include/asm/mach-imx/mxc_i2c.h
> > index 8e1ea9af19..81fd981444 100644
> > --- a/arch/arm/include/asm/mach-imx/mxc_i2c.h
> > +++ b/arch/arm/include/asm/mach-imx/mxc_i2c.h
> > @@ -6,6 +6,9 @@
> > #define __ASM_ARCH_MXC_MXC_I2C_H__
> > #include <asm-generic/gpio.h>
> > #include <asm/mach-imx/iomux-v3.h>
> > +#if CONFIG_IS_ENABLED(CLK)
> > +#include <clk.h>
> > +#endif
> >
> > struct i2c_pin_ctrl {
> > iomux_v3_cfg_t i2c_mode;
> > @@ -47,6 +50,9 @@ struct mxc_i2c_bus {
> > ulong driver_data;
> > int speed;
> > struct i2c_pads_info *pads_info;
> > +#if CONFIG_IS_ENABLED(CLK)
> > + struct clk per_clk;
> > +#endif
> > #ifndef CONFIG_DM_I2C
> > int (*idle_bus_fn)(void *p);
> > void *idle_bus_data;
> > diff --git a/drivers/i2c/mxc_i2c.c b/drivers/i2c/mxc_i2c.c index
> > 23119cce65..2e157bca58 100644
> > --- a/drivers/i2c/mxc_i2c.c
> > +++ b/drivers/i2c/mxc_i2c.c
>
> I already commented on a previous version of this patch and the following
> change is still missing here:
Thanks, I forgot to addressed your comments. Sent out v2, please help review.
Thanks,
Peng.
>
> @@ -149,7 +149,11 @@ static uint8_t i2c_imx_get_clk(struct mxc_i2c_bus
> *i2c_bus, unsigned int rate)
> #endif
>
> /* Divider value calculation */
> +#if CONFIG_IS_ENABLED(CLK)
> + i2c_clk_rate = clk_get_rate(&i2c_bus->per_clk); #else
> i2c_clk_rate = mxc_get_clock(MXC_I2C_CLK);
> +#endif
> div = (i2c_clk_rate + rate - 1) / rate;
> if (div < i2c_clk_div[0][0])
> clk_div = 0;
>
> Regards,
> Frieder
>
> > @@ -890,9 +890,22 @@ static int mxc_i2c_probe(struct udevice *bus)
> > i2c_bus->bus = bus;
> >
> > /* Enable clk */
> > +#if CONFIG_IS_ENABLED(CLK)
> > + ret = clk_get_by_index(bus, 0, &i2c_bus->per_clk);
> > + if (ret) {
> > + printf("Failed to get i2c clk\n");
> > + return ret;
> > + }
> > + ret = clk_enable(&i2c_bus->per_clk);
> > + if (ret) {
> > + printf("Failed to enable i2c clk\n");
> > + return ret;
> > + }
> > +#else
> > ret = enable_i2c_clk(1, bus->seq);
> > if (ret < 0)
> > return ret;
> > +#endif
> >
> > /*
> > * See Documentation/devicetree/bindings/i2c/i2c-imx.txt
> > @@ -919,7 +932,11 @@ static int mxc_i2c_probe(struct udevice *bus)
> > ret = i2c_idle_bus(i2c_bus);
> > if (ret < 0) {
> > /* Disable clk */
> > +#if CONFIG_IS_ENABLED(CLK)
> > + clk_disable(&i2c_bus->per_clk);
> > +#else
> > enable_i2c_clk(0, bus->seq);
> > +#endif
> > return ret;
> > }
> >
> >
^ permalink raw reply [flat|nested] 6+ messages in thread
* [U-Boot] [PATCH] i2c: mxc: add CONFIG_CLK support
2019-08-06 10:09 [U-Boot] [PATCH] i2c: mxc: add CONFIG_CLK support Peng Fan
2019-08-07 10:09 ` Ye Li
2019-08-07 13:49 ` Schrempf Frieder
@ 2019-08-08 7:04 ` Lukasz Majewski
2019-08-08 7:05 ` Peng Fan
2 siblings, 1 reply; 6+ messages in thread
From: Lukasz Majewski @ 2019-08-08 7:04 UTC (permalink / raw)
To: u-boot
On Tue, 6 Aug 2019 10:09:12 +0000
Peng Fan <peng.fan@nxp.com> wrote:
> When CONFIG_CLK enabled, use CLK UCLASS for clk related settings.
>
> Signed-off-by: Peng Fan <peng.fan@nxp.com>
> ---
> arch/arm/include/asm/mach-imx/mxc_i2c.h | 6 ++++++
> drivers/i2c/mxc_i2c.c | 17 +++++++++++++++++
> 2 files changed, 23 insertions(+)
>
> diff --git a/arch/arm/include/asm/mach-imx/mxc_i2c.h
> b/arch/arm/include/asm/mach-imx/mxc_i2c.h index
> 8e1ea9af19..81fd981444 100644 ---
> a/arch/arm/include/asm/mach-imx/mxc_i2c.h +++
> b/arch/arm/include/asm/mach-imx/mxc_i2c.h @@ -6,6 +6,9 @@
> #define __ASM_ARCH_MXC_MXC_I2C_H__
> #include <asm-generic/gpio.h>
> #include <asm/mach-imx/iomux-v3.h>
> +#if CONFIG_IS_ENABLED(CLK)
> +#include <clk.h>
> +#endif
>
> struct i2c_pin_ctrl {
> iomux_v3_cfg_t i2c_mode;
> @@ -47,6 +50,9 @@ struct mxc_i2c_bus {
> ulong driver_data;
> int speed;
> struct i2c_pads_info *pads_info;
> +#if CONFIG_IS_ENABLED(CLK)
> + struct clk per_clk;
> +#endif
> #ifndef CONFIG_DM_I2C
> int (*idle_bus_fn)(void *p);
> void *idle_bus_data;
> diff --git a/drivers/i2c/mxc_i2c.c b/drivers/i2c/mxc_i2c.c
> index 23119cce65..2e157bca58 100644
> --- a/drivers/i2c/mxc_i2c.c
> +++ b/drivers/i2c/mxc_i2c.c
> @@ -890,9 +890,22 @@ static int mxc_i2c_probe(struct udevice *bus)
> i2c_bus->bus = bus;
>
> /* Enable clk */
> +#if CONFIG_IS_ENABLED(CLK)
> + ret = clk_get_by_index(bus, 0, &i2c_bus->per_clk);
> + if (ret) {
> + printf("Failed to get i2c clk\n");
> + return ret;
> + }
> + ret = clk_enable(&i2c_bus->per_clk);
> + if (ret) {
> + printf("Failed to enable i2c clk\n");
> + return ret;
> + }
> +#else
> ret = enable_i2c_clk(1, bus->seq);
> if (ret < 0)
> return ret;
> +#endif
>
> /*
> * See Documentation/devicetree/bindings/i2c/i2c-imx.txt
> @@ -919,7 +932,11 @@ static int mxc_i2c_probe(struct udevice *bus)
> ret = i2c_idle_bus(i2c_bus);
> if (ret < 0) {
> /* Disable clk */
> +#if CONFIG_IS_ENABLED(CLK)
> + clk_disable(&i2c_bus->per_clk);
> +#else
> enable_i2c_clk(0, bus->seq);
> +#endif
> return ret;
> }
>
Reviewed-by: Lukasz Majewski <lukma@denx.de>
Best regards,
Lukasz Majewski
--
DENX Software Engineering GmbH, Managing Director: Wolfgang Denk
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-59 Fax: (+49)-8142-66989-80 Email: lukma at denx.de
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^ permalink raw reply [flat|nested] 6+ messages in thread
* [U-Boot] [PATCH] i2c: mxc: add CONFIG_CLK support
2019-08-08 7:04 ` Lukasz Majewski
@ 2019-08-08 7:05 ` Peng Fan
0 siblings, 0 replies; 6+ messages in thread
From: Peng Fan @ 2019-08-08 7:05 UTC (permalink / raw)
To: u-boot
Hi Lukasz,
> Subject: Re: [PATCH] i2c: mxc: add CONFIG_CLK support
>
> On Tue, 6 Aug 2019 10:09:12 +0000
> Peng Fan <peng.fan@nxp.com> wrote:
>
> > When CONFIG_CLK enabled, use CLK UCLASS for clk related settings.
> >
> > Signed-off-by: Peng Fan <peng.fan@nxp.com>
> > ---
> > arch/arm/include/asm/mach-imx/mxc_i2c.h | 6 ++++++
> > drivers/i2c/mxc_i2c.c | 17 +++++++++++++++++
> > 2 files changed, 23 insertions(+)
> >
> > diff --git a/arch/arm/include/asm/mach-imx/mxc_i2c.h
> > b/arch/arm/include/asm/mach-imx/mxc_i2c.h index
> > 8e1ea9af19..81fd981444 100644 ---
> > a/arch/arm/include/asm/mach-imx/mxc_i2c.h +++
> > b/arch/arm/include/asm/mach-imx/mxc_i2c.h @@ -6,6 +6,9 @@
> #define
> > __ASM_ARCH_MXC_MXC_I2C_H__ #include <asm-generic/gpio.h>
> #include
> > <asm/mach-imx/iomux-v3.h>
> > +#if CONFIG_IS_ENABLED(CLK)
> > +#include <clk.h>
> > +#endif
> >
> > struct i2c_pin_ctrl {
> > iomux_v3_cfg_t i2c_mode;
> > @@ -47,6 +50,9 @@ struct mxc_i2c_bus {
> > ulong driver_data;
> > int speed;
> > struct i2c_pads_info *pads_info;
> > +#if CONFIG_IS_ENABLED(CLK)
> > + struct clk per_clk;
> > +#endif
> > #ifndef CONFIG_DM_I2C
> > int (*idle_bus_fn)(void *p);
> > void *idle_bus_data;
> > diff --git a/drivers/i2c/mxc_i2c.c b/drivers/i2c/mxc_i2c.c index
> > 23119cce65..2e157bca58 100644
> > --- a/drivers/i2c/mxc_i2c.c
> > +++ b/drivers/i2c/mxc_i2c.c
> > @@ -890,9 +890,22 @@ static int mxc_i2c_probe(struct udevice *bus)
> > i2c_bus->bus = bus;
> >
> > /* Enable clk */
> > +#if CONFIG_IS_ENABLED(CLK)
> > + ret = clk_get_by_index(bus, 0, &i2c_bus->per_clk);
> > + if (ret) {
> > + printf("Failed to get i2c clk\n");
> > + return ret;
> > + }
> > + ret = clk_enable(&i2c_bus->per_clk);
> > + if (ret) {
> > + printf("Failed to enable i2c clk\n");
> > + return ret;
> > + }
> > +#else
> > ret = enable_i2c_clk(1, bus->seq);
> > if (ret < 0)
> > return ret;
> > +#endif
> >
> > /*
> > * See Documentation/devicetree/bindings/i2c/i2c-imx.txt
> > @@ -919,7 +932,11 @@ static int mxc_i2c_probe(struct udevice *bus)
> > ret = i2c_idle_bus(i2c_bus);
> > if (ret < 0) {
> > /* Disable clk */
> > +#if CONFIG_IS_ENABLED(CLK)
> > + clk_disable(&i2c_bus->per_clk);
> > +#else
> > enable_i2c_clk(0, bus->seq);
> > +#endif
> > return ret;
> > }
> >
>
> Reviewed-by: Lukasz Majewski <lukma@denx.de>
There is a v2 patch to fix an issue. Please help review there.
Thanks,
Peng.
>
>
> Best regards,
>
> Lukasz Majewski
>
> --
>
> DENX Software Engineering GmbH, Managing Director: Wolfgang Denk
> HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
> Phone: (+49)-8142-66989-59 Fax: (+49)-8142-66989-80 Email:
> lukma at denx.de
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end of thread, other threads:[~2019-08-08 7:05 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz follow: Atom feed
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2019-08-06 10:09 [U-Boot] [PATCH] i2c: mxc: add CONFIG_CLK support Peng Fan
2019-08-07 10:09 ` Ye Li
2019-08-07 13:49 ` Schrempf Frieder
2019-08-08 1:44 ` Peng Fan
2019-08-08 7:04 ` Lukasz Majewski
2019-08-08 7:05 ` Peng Fan
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