* [PATCH v2 0/2] Fix EoTp flag
@ 2021-02-01 3:36 Jitao Shi
2021-02-01 3:36 ` [PATCH v2 1/2] drm/mediatek: dsi: " Jitao Shi
2021-02-01 3:36 ` [PATCH v2 2/2] drm/mediatek: dsi: fine tune the line time cause by EOTp Jitao Shi
0 siblings, 2 replies; 5+ messages in thread
From: Jitao Shi @ 2021-02-01 3:36 UTC (permalink / raw)
To: Rob Herring, Mark Rutland, Matthias Brugger, Daniel Vetter,
David Airlie, dri-devel, linux-kernel
Cc: devicetree, Jitao Shi, srv_heupstream, huijuan.xie, stonea168,
cawa.cheng, linux-mediatek, bibby.hsieh, ck.hu, yingjoe.chen,
eddie.huang, linux-arm-kernel
Changes since v1:
- Seperate the line time as single patch.
Jitao Shi (2):
drm/mediatek: dsi: Fix EoTp flag
drm/mediatek: dsi: fine tune the line time cause by EOTp
drivers/gpu/drm/mediatek/mtk_dsi.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
--
2.12.5
_______________________________________________
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Linux-mediatek@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-mediatek
^ permalink raw reply [flat|nested] 5+ messages in thread
* [PATCH v2 1/2] drm/mediatek: dsi: Fix EoTp flag
2021-02-01 3:36 [PATCH v2 0/2] Fix EoTp flag Jitao Shi
@ 2021-02-01 3:36 ` Jitao Shi
2021-03-07 0:28 ` Chun-Kuang Hu
2021-02-01 3:36 ` [PATCH v2 2/2] drm/mediatek: dsi: fine tune the line time cause by EOTp Jitao Shi
1 sibling, 1 reply; 5+ messages in thread
From: Jitao Shi @ 2021-02-01 3:36 UTC (permalink / raw)
To: Rob Herring, Mark Rutland, Matthias Brugger, Daniel Vetter,
David Airlie, dri-devel, linux-kernel
Cc: devicetree, Jitao Shi, srv_heupstream, huijuan.xie, stonea168,
cawa.cheng, linux-mediatek, bibby.hsieh, ck.hu, yingjoe.chen,
eddie.huang, linux-arm-kernel
SoC will transmit the EoTp (End of Transmission packet) when
MIPI_DSI_MODE_EOT_PACKET flag is set.
Signed-off-by: Jitao Shi <jitao.shi@mediatek.com>
---
drivers/gpu/drm/mediatek/mtk_dsi.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/mediatek/mtk_dsi.c b/drivers/gpu/drm/mediatek/mtk_dsi.c
index 65fd99c528af..2bc46f2350f1 100644
--- a/drivers/gpu/drm/mediatek/mtk_dsi.c
+++ b/drivers/gpu/drm/mediatek/mtk_dsi.c
@@ -401,8 +401,11 @@ static void mtk_dsi_rxtx_control(struct mtk_dsi *dsi)
break;
}
- tmp_reg |= (dsi->mode_flags & MIPI_DSI_CLOCK_NON_CONTINUOUS) << 6;
- tmp_reg |= (dsi->mode_flags & MIPI_DSI_MODE_EOT_PACKET) >> 3;
+ if (dsi->mode_flags & MIPI_DSI_CLOCK_NON_CONTINUOUS)
+ tmp_reg |= HSTX_CKLP_EN;
+
+ if (!(dsi->mode_flags & MIPI_DSI_MODE_EOT_PACKET))
+ tmp_reg |= DIS_EOT;
writel(tmp_reg, dsi->regs + DSI_TXRX_CTRL);
}
--
2.12.5
_______________________________________________
Linux-mediatek mailing list
Linux-mediatek@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-mediatek
^ permalink raw reply related [flat|nested] 5+ messages in thread
* [PATCH v2 2/2] drm/mediatek: dsi: fine tune the line time cause by EOTp
2021-02-01 3:36 [PATCH v2 0/2] Fix EoTp flag Jitao Shi
2021-02-01 3:36 ` [PATCH v2 1/2] drm/mediatek: dsi: " Jitao Shi
@ 2021-02-01 3:36 ` Jitao Shi
2021-03-07 0:30 ` Chun-Kuang Hu
1 sibling, 1 reply; 5+ messages in thread
From: Jitao Shi @ 2021-02-01 3:36 UTC (permalink / raw)
To: Rob Herring, Mark Rutland, Matthias Brugger, Daniel Vetter,
David Airlie, dri-devel, linux-kernel
Cc: devicetree, Jitao Shi, srv_heupstream, huijuan.xie, stonea168,
cawa.cheng, linux-mediatek, bibby.hsieh, ck.hu, yingjoe.chen,
eddie.huang, linux-arm-kernel
Enabling EoTp will make the line time larger, so the hfp and
hbp should be reduced to keep line time.
Signed-off-by: Jitao Shi <jitao.shi@mediatek.com>
---
drivers/gpu/drm/mediatek/mtk_dsi.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/gpu/drm/mediatek/mtk_dsi.c b/drivers/gpu/drm/mediatek/mtk_dsi.c
index 2bc46f2350f1..8c70ec39bfe1 100644
--- a/drivers/gpu/drm/mediatek/mtk_dsi.c
+++ b/drivers/gpu/drm/mediatek/mtk_dsi.c
@@ -481,6 +481,7 @@ static void mtk_dsi_config_vdo_timing(struct mtk_dsi *dsi)
timing->da_hs_zero + timing->da_hs_exit + 3;
delta = dsi->mode_flags & MIPI_DSI_MODE_VIDEO_BURST ? 18 : 12;
+ delta += dsi->mode_flags & MIPI_DSI_MODE_EOT_PACKET ? 2 : 0;
horizontal_frontporch_byte = vm->hfront_porch * dsi_tmp_buf_bpp;
horizontal_front_back_byte = horizontal_frontporch_byte + horizontal_backporch_byte;
--
2.12.5
_______________________________________________
Linux-mediatek mailing list
Linux-mediatek@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-mediatek
^ permalink raw reply related [flat|nested] 5+ messages in thread
* Re: [PATCH v2 1/2] drm/mediatek: dsi: Fix EoTp flag
2021-02-01 3:36 ` [PATCH v2 1/2] drm/mediatek: dsi: " Jitao Shi
@ 2021-03-07 0:28 ` Chun-Kuang Hu
0 siblings, 0 replies; 5+ messages in thread
From: Chun-Kuang Hu @ 2021-03-07 0:28 UTC (permalink / raw)
To: Jitao Shi
Cc: Rob Herring, Mark Rutland, Matthias Brugger, Daniel Vetter,
David Airlie, DRI Development, linux-kernel, DTML,
srv_heupstream, huijuan.xie, stonea168, cawa.cheng,
moderated list:ARM/Mediatek SoC support, yingjoe.chen,
eddie.huang, Linux ARM
Hi, Jitao:
Jitao Shi <jitao.shi@mediatek.com> 於 2021年2月1日 週一 上午11:36寫道:
>
> SoC will transmit the EoTp (End of Transmission packet) when
> MIPI_DSI_MODE_EOT_PACKET flag is set.
I've modified the title and message as:
drm/mediatek: dsi: Use symbolized register definition
For HSTX_CKLP_EN and DIS_EOT, use symbolized register
definition instead of magic number.
And applied to mediatek-drm-next [1], thanks.
https://git.kernel.org/pub/scm/linux/kernel/git/chunkuang.hu/linux.git/log/?h=mediatek-drm-next
Regards,
Chun-Kuang.
>
> Signed-off-by: Jitao Shi <jitao.shi@mediatek.com>
> ---
> drivers/gpu/drm/mediatek/mtk_dsi.c | 7 +++++--
> 1 file changed, 5 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/mediatek/mtk_dsi.c b/drivers/gpu/drm/mediatek/mtk_dsi.c
> index 65fd99c528af..2bc46f2350f1 100644
> --- a/drivers/gpu/drm/mediatek/mtk_dsi.c
> +++ b/drivers/gpu/drm/mediatek/mtk_dsi.c
> @@ -401,8 +401,11 @@ static void mtk_dsi_rxtx_control(struct mtk_dsi *dsi)
> break;
> }
>
> - tmp_reg |= (dsi->mode_flags & MIPI_DSI_CLOCK_NON_CONTINUOUS) << 6;
> - tmp_reg |= (dsi->mode_flags & MIPI_DSI_MODE_EOT_PACKET) >> 3;
> + if (dsi->mode_flags & MIPI_DSI_CLOCK_NON_CONTINUOUS)
> + tmp_reg |= HSTX_CKLP_EN;
> +
> + if (!(dsi->mode_flags & MIPI_DSI_MODE_EOT_PACKET))
> + tmp_reg |= DIS_EOT;
>
> writel(tmp_reg, dsi->regs + DSI_TXRX_CTRL);
> }
> --
> 2.12.5
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
_______________________________________________
Linux-mediatek mailing list
Linux-mediatek@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-mediatek
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH v2 2/2] drm/mediatek: dsi: fine tune the line time cause by EOTp
2021-02-01 3:36 ` [PATCH v2 2/2] drm/mediatek: dsi: fine tune the line time cause by EOTp Jitao Shi
@ 2021-03-07 0:30 ` Chun-Kuang Hu
0 siblings, 0 replies; 5+ messages in thread
From: Chun-Kuang Hu @ 2021-03-07 0:30 UTC (permalink / raw)
To: Jitao Shi
Cc: Rob Herring, Mark Rutland, Matthias Brugger, Daniel Vetter,
David Airlie, DRI Development, linux-kernel, DTML,
srv_heupstream, huijuan.xie, stonea168, cawa.cheng,
moderated list:ARM/Mediatek SoC support, yingjoe.chen,
eddie.huang, Linux ARM
Hi, Jitao:
Jitao Shi <jitao.shi@mediatek.com> 於 2021年2月1日 週一 上午11:36寫道:
>
> Enabling EoTp will make the line time larger, so the hfp and
> hbp should be reduced to keep line time.
Applied to mediatek-drm-next [1], thanks.
[1] https://git.kernel.org/pub/scm/linux/kernel/git/chunkuang.hu/linux.git/log/?h=mediatek-drm-next
Regards,
Chun-Kuang.
>
> Signed-off-by: Jitao Shi <jitao.shi@mediatek.com>
> ---
> drivers/gpu/drm/mediatek/mtk_dsi.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/gpu/drm/mediatek/mtk_dsi.c b/drivers/gpu/drm/mediatek/mtk_dsi.c
> index 2bc46f2350f1..8c70ec39bfe1 100644
> --- a/drivers/gpu/drm/mediatek/mtk_dsi.c
> +++ b/drivers/gpu/drm/mediatek/mtk_dsi.c
> @@ -481,6 +481,7 @@ static void mtk_dsi_config_vdo_timing(struct mtk_dsi *dsi)
> timing->da_hs_zero + timing->da_hs_exit + 3;
>
> delta = dsi->mode_flags & MIPI_DSI_MODE_VIDEO_BURST ? 18 : 12;
> + delta += dsi->mode_flags & MIPI_DSI_MODE_EOT_PACKET ? 2 : 0;
>
> horizontal_frontporch_byte = vm->hfront_porch * dsi_tmp_buf_bpp;
> horizontal_front_back_byte = horizontal_frontporch_byte + horizontal_backporch_byte;
> --
> 2.12.5
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
_______________________________________________
Linux-mediatek mailing list
Linux-mediatek@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-mediatek
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2021-03-07 0:30 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
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2021-02-01 3:36 [PATCH v2 0/2] Fix EoTp flag Jitao Shi
2021-02-01 3:36 ` [PATCH v2 1/2] drm/mediatek: dsi: " Jitao Shi
2021-03-07 0:28 ` Chun-Kuang Hu
2021-02-01 3:36 ` [PATCH v2 2/2] drm/mediatek: dsi: fine tune the line time cause by EOTp Jitao Shi
2021-03-07 0:30 ` Chun-Kuang Hu
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