From: Hans Verkuil <hverkuil-cisco@xs4all.nl> To: dillon.minfei@gmail.com, mchehab@kernel.org, mchehab+huawei@kernel.org, ezequiel@collabora.com, gnurou@gmail.com, pihsun@chromium.org, mcoquelin.stm32@gmail.com, alexandre.torgue@foss.st.com, mturquette@baylibre.com, sboyd@kernel.org, robh+dt@kernel.org Cc: patrice.chotard@foss.st.com, hugues.fruchet@foss.st.com, linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, linux-clk@vger.kernel.org, devicetree@vger.kernel.org Subject: Re: [PATCH v2 7/9] media: docs: add doc for the stm32 dma2d driver Date: Mon, 9 Aug 2021 11:15:59 +0200 [thread overview] Message-ID: <7131ee03-fc81-cb9b-665f-80e4ce8435ab@xs4all.nl> (raw) In-Reply-To: <1626341068-20253-18-git-send-email-dillon.minfei@gmail.com> On 15/07/2021 11:24, dillon.minfei@gmail.com wrote: > From: Dillon Min <dillon.minfei@gmail.com> > > add stm32-uapi.rst for stm32's dma2d driver, explain the details of ioctl > V4L2_CID_DMA2D_R2M_MODE, V4L2_CID_DMA2D_R2M_COLOR. > > Signed-off-by: Dillon Min <dillon.minfei@gmail.com> > --- > v2: introduce the stm32-uapi.rst to explain the detail of dma2d's ioctl. > > .../userspace-api/media/drivers/index.rst | 1 + > .../userspace-api/media/drivers/stm32-uapi.rst | 22 ++++++++++++++++++++++ > 2 files changed, 23 insertions(+) > create mode 100644 Documentation/userspace-api/media/drivers/stm32-uapi.rst > > diff --git a/Documentation/userspace-api/media/drivers/index.rst b/Documentation/userspace-api/media/drivers/index.rst > index 12e3c512d718..ce42915d48f4 100644 > --- a/Documentation/userspace-api/media/drivers/index.rst > +++ b/Documentation/userspace-api/media/drivers/index.rst > @@ -38,4 +38,5 @@ For more details see the file COPYING in the source distribution of Linux. > max2175 > meye-uapi > omap3isp-uapi > + stm32-uapi > uvcvideo > diff --git a/Documentation/userspace-api/media/drivers/stm32-uapi.rst b/Documentation/userspace-api/media/drivers/stm32-uapi.rst > new file mode 100644 > index 000000000000..d7a4f717387d > --- /dev/null > +++ b/Documentation/userspace-api/media/drivers/stm32-uapi.rst > @@ -0,0 +1,22 @@ > +.. SPDX-License-Identifier: GPL-2.0 > + > +STM32 Chrom-Art 2D Graphics Accelerator unit (DMA2D) driver > +================================================ > + > +The DMA2D driver implements the following driver-specific controls: > + > +``V4L2_CID_DMA2D_R2M_MODE`` Please mention the control type as well. > +------------------------- > + Enable/Disable the Register-To-Memory mode, filling a part or the > + whole of a destination image with a specific color. > + > + 1 for enable, 0 for disable. > + > +``V4L2_CID_DMA2D_R2M_COLOR`` Ditto. > +------------------------------- > + Set the color to fill a part or the whole of a destination image. > + only used under Register-To-Memory mode, to set the DMA2D_OCOLR register > + (RED, GREEN, BLUE) which is: Here you mention RGB only, > + > + 31 .. 24 23 .. 16 15 .. 8 7 .. 0 > + ALPHA[7:0] RED[7:0] GREEN[7:0] BLUE[7:0] but here you also mention Alpha. So which is it? See also my review of patch 9/9. > I'm getting some warnings building this doc: Documentation/media/userspace-api/drivers/stm32-uapi.rst:4: WARNING: Title underline too short. STM32 Chrom-Art 2D Graphics Accelerator unit (DMA2D) driver ================================================ Documentation/media/userspace-api/drivers/stm32-uapi.rst:9: WARNING: Title underline too short. ``V4L2_CID_DMA2D_R2M_MODE`` ------------------------- Regards, Hans
WARNING: multiple messages have this Message-ID (diff)
From: Hans Verkuil <hverkuil-cisco@xs4all.nl> To: dillon.minfei@gmail.com, mchehab@kernel.org, mchehab+huawei@kernel.org, ezequiel@collabora.com, gnurou@gmail.com, pihsun@chromium.org, mcoquelin.stm32@gmail.com, alexandre.torgue@foss.st.com, mturquette@baylibre.com, sboyd@kernel.org, robh+dt@kernel.org Cc: patrice.chotard@foss.st.com, hugues.fruchet@foss.st.com, linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, linux-clk@vger.kernel.org, devicetree@vger.kernel.org Subject: Re: [PATCH v2 7/9] media: docs: add doc for the stm32 dma2d driver Date: Mon, 9 Aug 2021 11:15:59 +0200 [thread overview] Message-ID: <7131ee03-fc81-cb9b-665f-80e4ce8435ab@xs4all.nl> (raw) In-Reply-To: <1626341068-20253-18-git-send-email-dillon.minfei@gmail.com> On 15/07/2021 11:24, dillon.minfei@gmail.com wrote: > From: Dillon Min <dillon.minfei@gmail.com> > > add stm32-uapi.rst for stm32's dma2d driver, explain the details of ioctl > V4L2_CID_DMA2D_R2M_MODE, V4L2_CID_DMA2D_R2M_COLOR. > > Signed-off-by: Dillon Min <dillon.minfei@gmail.com> > --- > v2: introduce the stm32-uapi.rst to explain the detail of dma2d's ioctl. > > .../userspace-api/media/drivers/index.rst | 1 + > .../userspace-api/media/drivers/stm32-uapi.rst | 22 ++++++++++++++++++++++ > 2 files changed, 23 insertions(+) > create mode 100644 Documentation/userspace-api/media/drivers/stm32-uapi.rst > > diff --git a/Documentation/userspace-api/media/drivers/index.rst b/Documentation/userspace-api/media/drivers/index.rst > index 12e3c512d718..ce42915d48f4 100644 > --- a/Documentation/userspace-api/media/drivers/index.rst > +++ b/Documentation/userspace-api/media/drivers/index.rst > @@ -38,4 +38,5 @@ For more details see the file COPYING in the source distribution of Linux. > max2175 > meye-uapi > omap3isp-uapi > + stm32-uapi > uvcvideo > diff --git a/Documentation/userspace-api/media/drivers/stm32-uapi.rst b/Documentation/userspace-api/media/drivers/stm32-uapi.rst > new file mode 100644 > index 000000000000..d7a4f717387d > --- /dev/null > +++ b/Documentation/userspace-api/media/drivers/stm32-uapi.rst > @@ -0,0 +1,22 @@ > +.. SPDX-License-Identifier: GPL-2.0 > + > +STM32 Chrom-Art 2D Graphics Accelerator unit (DMA2D) driver > +================================================ > + > +The DMA2D driver implements the following driver-specific controls: > + > +``V4L2_CID_DMA2D_R2M_MODE`` Please mention the control type as well. > +------------------------- > + Enable/Disable the Register-To-Memory mode, filling a part or the > + whole of a destination image with a specific color. > + > + 1 for enable, 0 for disable. > + > +``V4L2_CID_DMA2D_R2M_COLOR`` Ditto. > +------------------------------- > + Set the color to fill a part or the whole of a destination image. > + only used under Register-To-Memory mode, to set the DMA2D_OCOLR register > + (RED, GREEN, BLUE) which is: Here you mention RGB only, > + > + 31 .. 24 23 .. 16 15 .. 8 7 .. 0 > + ALPHA[7:0] RED[7:0] GREEN[7:0] BLUE[7:0] but here you also mention Alpha. So which is it? See also my review of patch 9/9. > I'm getting some warnings building this doc: Documentation/media/userspace-api/drivers/stm32-uapi.rst:4: WARNING: Title underline too short. STM32 Chrom-Art 2D Graphics Accelerator unit (DMA2D) driver ================================================ Documentation/media/userspace-api/drivers/stm32-uapi.rst:9: WARNING: Title underline too short. ``V4L2_CID_DMA2D_R2M_MODE`` ------------------------- Regards, Hans _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2021-08-09 9:16 UTC|newest] Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-07-15 9:24 [PATCH v2 0/9] Add support for DMA2D of STMicroelectronics STM32 Soc series dillon.minfei 2021-07-15 9:24 ` dillon.minfei 2021-07-15 9:24 ` [PATCH v2 1/9] media: admin-guide: add stm32-dma2d description dillon.minfei 2021-07-15 9:24 ` dillon.minfei 2021-07-15 9:24 ` [PATCH v2 2/9] media: dt-bindings: media: add document for STM32 DMA2d bindings dillon.minfei 2021-07-15 9:24 ` dillon.minfei 2021-07-15 9:24 ` [PATCH v2 3/9] clk: stm32: Fix ltdc's clock turn off by clk_disable_unused() after kernel startup dillon.minfei 2021-07-15 9:24 ` dillon.minfei 2021-07-15 9:24 ` [PATCH v2 4/9] ARM: dts: stm32: Enable DMA2D support on STM32F429 MCU dillon.minfei 2021-07-15 9:24 ` dillon.minfei 2021-07-15 9:24 ` [PATCH v2 5/9] ARM: dts: stm32: Enable DMA2D on STM32F469-DISCO board dillon.minfei 2021-07-15 9:24 ` dillon.minfei 2021-07-15 9:24 ` [PATCH v2 6/9] media: v4l2-mem2mem: add v4l2_m2m_get_unmapped_area for no-mmu platform dillon.minfei 2021-07-15 9:24 ` dillon.minfei 2021-07-15 9:24 ` [PATCH v2 7/9] media: docs: add doc for the stm32 dma2d driver dillon.minfei 2021-07-15 9:24 ` dillon.minfei 2021-07-15 9:24 ` [PATCH v2 8/9] media: v4l: uapi: Add user control base for stm32 dma2d controls dillon.minfei 2021-07-15 9:24 ` dillon.minfei 2021-07-15 9:24 ` [PATCH v2 9/9] media: stm32-dma2d: STM32 DMA2D driver dillon.minfei 2021-07-15 9:24 ` dillon.minfei 2021-07-15 9:24 ` [PATCH v2 0/9] Add support for DMA2D of STMicroelectronics STM32 Soc series dillon.minfei 2021-07-15 9:24 ` dillon.minfei 2021-07-15 9:24 ` [PATCH v2 1/9] media: admin-guide: add stm32-dma2d description dillon.minfei 2021-07-15 9:24 ` dillon.minfei 2021-07-15 9:24 ` [PATCH v2 2/9] media: dt-bindings: media: add document for STM32 DMA2d bindings dillon.minfei 2021-07-15 9:24 ` dillon.minfei 2021-07-15 9:24 ` [PATCH v2 3/9] clk: stm32: Fix ltdc's clock turn off by clk_disable_unused() after kernel startup dillon.minfei 2021-07-15 9:24 ` dillon.minfei 2021-07-15 9:24 ` [PATCH v2 4/9] ARM: dts: stm32: Enable DMA2D support on STM32F429 MCU dillon.minfei 2021-07-15 9:24 ` dillon.minfei 2021-07-15 9:24 ` [PATCH v2 5/9] ARM: dts: stm32: Enable DMA2D on STM32F469-DISCO board dillon.minfei 2021-07-15 9:24 ` dillon.minfei 2021-07-15 9:24 ` [PATCH v2 6/9] media: v4l2-mem2mem: add v4l2_m2m_get_unmapped_area for no-mmu platform dillon.minfei 2021-07-15 9:24 ` dillon.minfei 2021-07-15 9:24 ` [PATCH v2 7/9] media: docs: add doc for the stm32 dma2d driver dillon.minfei 2021-07-15 9:24 ` dillon.minfei 2021-08-09 9:15 ` Hans Verkuil [this message] 2021-08-09 9:15 ` Hans Verkuil 2021-08-10 8:52 ` Dillon Min 2021-08-10 8:52 ` Dillon Min 2021-07-15 9:24 ` [PATCH v2 8/9] media: v4l: uapi: Add user control base for stm32 dma2d controls dillon.minfei 2021-07-15 9:24 ` dillon.minfei 2021-07-15 9:24 ` [PATCH v2 9/9] media: stm32-dma2d: STM32 DMA2D driver dillon.minfei 2021-07-15 9:24 ` dillon.minfei 2021-08-09 9:09 ` Hans Verkuil 2021-08-09 9:09 ` Hans Verkuil 2021-08-10 8:51 ` Dillon Min 2021-08-10 8:51 ` Dillon Min 2021-08-05 8:59 ` [PATCH v2 0/9] Add support for DMA2D of STMicroelectronics STM32 Soc series Dillon Min 2021-08-05 8:59 ` Dillon Min
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