linux-stable.git/drivers/gpu/drm/meson, branch v5.7

drm/meson: pm resume add return errno branch

2020-05-13T10:00:37+00:00

pm_resump api did not handle drm_mode_config_helper_resume error.
This change add handle to return drm_mode_config_helper_resume`s
error number. This code logic is aligned with api pm_suspend.
After this change, the code maybe a bit readable.

Signed-off-by: Bernard Zhao 
Signed-off-by: Neil Armstrong 
Link: https://patchwork.freedesktop.org/patch/msgid/20200428131747.2099-1-bernard@vivo.com

drm/meson: Delete an error message in meson_dw_hdmi_bind()

2020-04-15T08:20:01+00:00

The function “platform_get_irq” can log an error already.
Thus omit a redundant message for the exception handling in the
calling function.

This issue was detected by using the Coccinelle software.

Fixes: 3f68be7d8e96 ("drm/meson: Add support for HDMI encoder and DW-HDMI bridge + PHY")
Signed-off-by: Markus Elfring 
Reviewed-by: Neil Armstrong 
Signed-off-by: Neil Armstrong 
Link: https://patchwork.freedesktop.org/patch/msgid/76f24122-4d3f-7670-9f06-edb4731a0661@web.de

drm/meson: Add YUV420 output support

2020-03-10T09:51:24+00:00

This patch adds support for the YUV420 output from the Amlogic Meson SoCs
Video Processing Unit to the HDMI Controller.

The YUV420 is obtained by generating a YUV444 pixel stream like
the classic HDMI display modes, but then the Video Encoder output
can be configured to down-sample the YUV444 pixel stream to a YUV420
stream.
In addition if pixel stream down-sampling, the Y Cb Cr components must
also be mapped differently to align with the HDMI2.0 specifications.

This mode needs a different clock generation scheme since the TMDS PHY
clock must match the 10x ratio with the YUV420 pixel clock, but
the video encoder must run at 2x the pixel clock.

This patch enables the bridge bus format negociation, and handles
the YUV420 case if selected by the negociation.

Signed-off-by: Neil Armstrong 
Reviewed-by: Jernej Škrabec 
Link: https://patchwork.freedesktop.org/patch/msgid/20200304104052.17196-12-narmstrong@baylibre.com

drm/meson: vclk: add support for YUV420 setup

2020-03-10T09:51:24+00:00

This patch adds clocking support for the YUV420 output from the
Amlogic Meson SoCs Video Processing Unit to the HDMI Controller.

The YUV420 is obtained by generating a YUV444 pixel stream like
the classic HDMI display modes, but then the Video Encoder output
can be configured to down-sample the YUV444 pixel stream to a YUV420
stream.

This mode needs a different clock generation scheme since the TMDS PHY
clock must match the 10x ratio with the YUV420 pixel clock, but
the video encoder must run at 2x the pixel clock.

This patch adds the TMDS PHY clock value in all the video clock setup
in order to better support these specific uses cases and switch
to the Common Clock framework for clocks handling in the future.

Signed-off-by: Neil Armstrong 
Reviewed-by: Jernej Škrabec 
Link: https://patchwork.freedesktop.org/patch/msgid/20200304104052.17196-11-narmstrong@baylibre.com

drm/meson: venc: add support for YUV420 setup

2020-03-10T09:51:24+00:00

This patch adds encoding support for the YUV420 output from the
Amlogic Meson SoCs Video Processing Unit to the HDMI Controller.

The YUV420 is obtained by generating a YUV444 pixel stream like
the classic HDMI display modes, but then the Video Encoder output
can be configured to down-sample the YUV444 pixel stream to a YUV420
stream.

In addition if pixel stream down-sampling, the Y Cb Cr components must
also be mapped differently to align with the HDMI2.0 specifications.

Signed-off-by: Neil Armstrong 
Reviewed-by: Jernej Škrabec 
Link: https://patchwork.freedesktop.org/patch/msgid/20200304104052.17196-10-narmstrong@baylibre.com

drm/meson: dw-hdmi: stop enforcing input_bus_format

2020-03-10T09:51:24+00:00

To allow using formats from negotiation, stop enforcing input_bus_format
in the private dw-plat-data struct.

Signed-off-by: Neil Armstrong 
Reviewed-by: Boris Brezillon 
Reviewed-by: Jernej Škrabec 
Link: https://patchwork.freedesktop.org/patch/msgid/20200304104052.17196-9-narmstrong@baylibre.com

drm/meson: meson_dw_hdmi: add bridge and switch to drm_bridge_funcs

2020-03-10T09:51:24+00:00

Switch the dw-hdmi driver to drm_bridge_funcs by implementing a new local
bridge, connecting it to the dw-hdmi bridge, then implement the
atomic_get_input_bus_fmts/atomic_get_output_bus_fmts.

Signed-off-by: Neil Armstrong 
Reviewed-by: Jernej Škrabec 
Link: https://patchwork.freedesktop.org/patch/msgid/20200304104052.17196-8-narmstrong@baylibre.com

drm/meson: venc: make drm_display_mode const

2020-03-10T09:51:24+00:00

Before switching to bridge funcs, make sure drm_display_mode is passed
as const to the venc functions.

Signed-off-by: Neil Armstrong 
Reviewed-by: Boris Brezillon 
Acked-by: Laurent Pinchart 
Reviewed-by: Jernej Škrabec 
Link: https://patchwork.freedesktop.org/patch/msgid/20200304104052.17196-7-narmstrong@baylibre.com

drm: meson: fix address type confusion

2020-01-08T12:51:56+00:00

Casting a pointer to dma_addr_t produces a warning:

drivers/gpu/drm/meson/meson_rdma.c: In function 'meson_rdma_free':
drivers/gpu/drm/meson/meson_rdma.c:59:25: error: cast from pointer to integer of different size [-Werror=pointer-to-int-cast]
  priv->rdma.addr_phys = (dma_addr_t)NULL;

In this case, it's worse because the variable name has the suffix
'_phys', which often indicates a phys_addr_t rather than dma_addr_t,
i.e. yet another incompatible type.

Change it to use consistent naming and avoid NULL.

Fixes: 63fba242c464 ("drm/meson: add RDMA module driver")
Signed-off-by: Arnd Bergmann 
Acked-by: Neil Armstrong 
Signed-off-by: Neil Armstrong 
Link: https://patchwork.freedesktop.org/patch/msgid/20200107214653.1173199-1-arnd@arndb.de

drm: meson: Remove unneeded semicolon

2020-01-06T14:56:23+00:00

Fixes coccicheck warning:

drivers/gpu/drm/meson/meson_crtc.c:360:3-4: Unneeded semicolon
drivers/gpu/drm/meson/meson_plane.c:181:2-3: Unneeded semicolon

Reported-by: Hulk Robot 
Signed-off-by: zhengbin 
Reviewed-by: Neil Armstrong 
Signed-off-by: Neil Armstrong 
Link: https://patchwork.freedesktop.org/patch/msgid/1576468701-69717-1-git-send-email-zhengbin13@huawei.com