2024-04-03 09:20:44

by Jun Nie

Subject: [PATCH v3 2/6] drm/msm/dsi: set video mode widebus enable bit when widebus is enabled

From: Jonathan Marek <[email protected]>

The value returned by msm_dsi_wide_bus_enabled() doesn't match what the
driver is doing in video mode. Fix that by actually enabling widebus for
video mode.

Fixes: efcbd6f9cdeb ("drm/msm/dsi: Enable widebus for DSI")
Signed-off-by: Jonathan Marek <[email protected]>
Signed-off-by: Jun Nie <[email protected]>
---
drivers/gpu/drm/msm/dsi/dsi.xml.h | 1 +
drivers/gpu/drm/msm/dsi/dsi_host.c | 2 ++
2 files changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/msm/dsi/dsi.xml.h b/drivers/gpu/drm/msm/dsi/dsi.xml.h
index 2a7d980e12c3..f0b3cdc020a1 100644
--- a/drivers/gpu/drm/msm/dsi/dsi.xml.h
+++ b/drivers/gpu/drm/msm/dsi/dsi.xml.h
@@ -231,6 +231,7 @@ static inline uint32_t DSI_VID_CFG0_TRAFFIC_MODE(enum dsi_traffic_mode val)
#define DSI_VID_CFG0_HSA_POWER_STOP 0x00010000
#define DSI_VID_CFG0_HBP_POWER_STOP 0x00100000
#define DSI_VID_CFG0_HFP_POWER_STOP 0x01000000
+#define DSI_VID_CFG0_DATABUS_WIDEN 0x02000000
#define DSI_VID_CFG0_PULSE_MODE_HSA_HE 0x10000000

#define REG_DSI_VID_CFG1 0x0000001c
diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c b/drivers/gpu/drm/msm/dsi/dsi_host.c
index 9d86a6aca6f2..2a0422cad6de 100644
--- a/drivers/gpu/drm/msm/dsi/dsi_host.c
+++ b/drivers/gpu/drm/msm/dsi/dsi_host.c
@@ -754,6 +754,8 @@ static void dsi_ctrl_enable(struct msm_dsi_host *msm_host,
data |= DSI_VID_CFG0_TRAFFIC_MODE(dsi_get_traffic_mode(flags));
data |= DSI_VID_CFG0_DST_FORMAT(dsi_get_vid_fmt(mipi_fmt));
data |= DSI_VID_CFG0_VIRT_CHANNEL(msm_host->channel);
+ if (msm_dsi_host_is_wide_bus_enabled(&msm_host->base))
+ data |= DSI_VID_CFG0_DATABUS_WIDEN;
dsi_write(msm_host, REG_DSI_VID_CFG0, data);

/* Do not swap RGB colors */

--
2.34.1

2024-04-03 10:11:00

by Dmitry Baryshkov

Subject: Re: [PATCH v3 2/6] drm/msm/dsi: set video mode widebus enable bit when widebus is enabled

On Wed, 3 Apr 2024 at 12:11, Jun Nie <[email protected]> wrote:
>
> From: Jonathan Marek <[email protected]>
>
> The value returned by msm_dsi_wide_bus_enabled() doesn't match what the
> driver is doing in video mode. Fix that by actually enabling widebus for
> video mode.
>
> Fixes: efcbd6f9cdeb ("drm/msm/dsi: Enable widebus for DSI")
> Signed-off-by: Jonathan Marek <[email protected]>
> Signed-off-by: Jun Nie <[email protected]>

You have ignored all the review comments that were provided for v1.
None of the tags were picked up either.

Have you posted this for internal review like I have explicitly asked you?

> ---
> drivers/gpu/drm/msm/dsi/dsi.xml.h | 1 +
> drivers/gpu/drm/msm/dsi/dsi_host.c | 2 ++
> 2 files changed, 3 insertions(+)
>
> diff --git a/drivers/gpu/drm/msm/dsi/dsi.xml.h b/drivers/gpu/drm/msm/dsi/dsi.xml.h
> index 2a7d980e12c3..f0b3cdc020a1 100644
> --- a/drivers/gpu/drm/msm/dsi/dsi.xml.h
> +++ b/drivers/gpu/drm/msm/dsi/dsi.xml.h
> @@ -231,6 +231,7 @@ static inline uint32_t DSI_VID_CFG0_TRAFFIC_MODE(enum dsi_traffic_mode val)
> #define DSI_VID_CFG0_HSA_POWER_STOP 0x00010000
> #define DSI_VID_CFG0_HBP_POWER_STOP 0x00100000
> #define DSI_VID_CFG0_HFP_POWER_STOP 0x01000000
> +#define DSI_VID_CFG0_DATABUS_WIDEN 0x02000000
> #define DSI_VID_CFG0_PULSE_MODE_HSA_HE 0x10000000

From the top of the file:

/* Autogenerated file, DO NOT EDIT manually!

>
> #define REG_DSI_VID_CFG1 0x0000001c
> diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c b/drivers/gpu/drm/msm/dsi/dsi_host.c
> index 9d86a6aca6f2..2a0422cad6de 100644
> --- a/drivers/gpu/drm/msm/dsi/dsi_host.c
> +++ b/drivers/gpu/drm/msm/dsi/dsi_host.c
> @@ -754,6 +754,8 @@ static void dsi_ctrl_enable(struct msm_dsi_host *msm_host,
> data |= DSI_VID_CFG0_TRAFFIC_MODE(dsi_get_traffic_mode(flags));
> data |= DSI_VID_CFG0_DST_FORMAT(dsi_get_vid_fmt(mipi_fmt));
> data |= DSI_VID_CFG0_VIRT_CHANNEL(msm_host->channel);
> + if (msm_dsi_host_is_wide_bus_enabled(&msm_host->base))
> + data |= DSI_VID_CFG0_DATABUS_WIDEN;
> dsi_write(msm_host, REG_DSI_VID_CFG0, data);
>
> /* Do not swap RGB colors */
>
> --
> 2.34.1
>


--
With best wishes
Dmitry

2024-04-08 09:43:55

by Jun Nie

Subject: Re: [PATCH v3 2/6] drm/msm/dsi: set video mode widebus enable bit when widebus is enabled

Dmitry Baryshkov <[email protected]> 于2024年4月3日周三 18:10写道：
>
> On Wed, 3 Apr 2024 at 12:11, Jun Nie <[email protected]> wrote:
> >
> > From: Jonathan Marek <[email protected]>
> >
> > The value returned by msm_dsi_wide_bus_enabled() doesn't match what the
> > driver is doing in video mode. Fix that by actually enabling widebus for
> > video mode.
> >
> > Fixes: efcbd6f9cdeb ("drm/msm/dsi: Enable widebus for DSI")
> > Signed-off-by: Jonathan Marek <[email protected]>
> > Signed-off-by: Jun Nie <[email protected]>
>
> You have ignored all the review comments that were provided for v1.
> None of the tags were picked up either.
Just find that It was an accident that I cherry-picked wrong patch.
>
> Have you posted this for internal review like I have explicitly asked you?
Sorry, I guess I skipped your word in depression when I read the email.
>
> > ---
> > drivers/gpu/drm/msm/dsi/dsi.xml.h | 1 +
> > drivers/gpu/drm/msm/dsi/dsi_host.c | 2 ++
> > 2 files changed, 3 insertions(+)
> >
> > diff --git a/drivers/gpu/drm/msm/dsi/dsi.xml.h b/drivers/gpu/drm/msm/dsi/dsi.xml.h
> > index 2a7d980e12c3..f0b3cdc020a1 100644
> > --- a/drivers/gpu/drm/msm/dsi/dsi.xml.h
> > +++ b/drivers/gpu/drm/msm/dsi/dsi.xml.h
> > @@ -231,6 +231,7 @@ static inline uint32_t DSI_VID_CFG0_TRAFFIC_MODE(enum dsi_traffic_mode val)
> > #define DSI_VID_CFG0_HSA_POWER_STOP 0x00010000
> > #define DSI_VID_CFG0_HBP_POWER_STOP 0x00100000
> > #define DSI_VID_CFG0_HFP_POWER_STOP 0x01000000
> > +#define DSI_VID_CFG0_DATABUS_WIDEN 0x02000000
> > #define DSI_VID_CFG0_PULSE_MODE_HSA_HE 0x10000000
>
> From the top of the file:
>
> /* Autogenerated file, DO NOT EDIT manually!
This is my fault, I did not notice the top of this file totally. Will
fix it in next version.

>
> >
> > #define REG_DSI_VID_CFG1 0x0000001c
> > diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c b/drivers/gpu/drm/msm/dsi/dsi_host.c
> > index 9d86a6aca6f2..2a0422cad6de 100644
> > --- a/drivers/gpu/drm/msm/dsi/dsi_host.c
> > +++ b/drivers/gpu/drm/msm/dsi/dsi_host.c
> > @@ -754,6 +754,8 @@ static void dsi_ctrl_enable(struct msm_dsi_host *msm_host,
> > data |= DSI_VID_CFG0_TRAFFIC_MODE(dsi_get_traffic_mode(flags));
> > data |= DSI_VID_CFG0_DST_FORMAT(dsi_get_vid_fmt(mipi_fmt));
> > data |= DSI_VID_CFG0_VIRT_CHANNEL(msm_host->channel);
> > + if (msm_dsi_host_is_wide_bus_enabled(&msm_host->base))
> > + data |= DSI_VID_CFG0_DATABUS_WIDEN;
> > dsi_write(msm_host, REG_DSI_VID_CFG0, data);
> >
> > /* Do not swap RGB colors */
> >
> > --
> > 2.34.1
> >
>
>
> --
> With best wishes
> Dmitry