RP1 DPI: interlaced HSync/VSync alignment (ignore) #6694
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This makes the kernel representation of the clock structure match reality. Signed-off-by: Dave Stevenson <[email protected]>
In the move to the upstream bcm2712.dts, the A76 PMU was omitted from the required downstream additions. Link: raspberrypi#6507 Signed-off-by: Phil Elwell <[email protected]>
Following the merging of [1], it is safe to re-enable DMA to UART0 without fear of losing data. Seen while looking at raspberrypi#6507. [1] dmaengine: dw-axi-dmac: Allow client-chosen width Signed-off-by: Phil Elwell <[email protected]>
gpio-direct mode is a modification of the brcmstb GPIO driver that makes it play nicely with the userspace pinctrl utility. The mode forces the drive to read its state from the hardware each time, rather than relying on cached state. Doing so slightly reduces performance, but this is not a heavily used code path. Signed-off-by: Phil Elwell <[email protected]>
Fractional source co-ordinates can be used to setup the scaling filters, so retain the information. Signed-off-by: Dom Cobley <[email protected]> Reviewed-by: Maxime Ripard <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected] Signed-off-by: Dave Stevenson <[email protected]>
Apply fractional source co-ordinates into the scaling filters. Signed-off-by: Dom Cobley <[email protected]> Reviewed-by: Maxime Ripard <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected] Signed-off-by: Dave Stevenson <[email protected]>
When the margins are changed, the dlist needs to be regenerated with the changed updated dest regions for each of the planes. Setting the zpos_changed flag is sufficient to trigger that without doing a full modeset, therefore set it should the margins be changed. Reviewed-by: Maxime Ripard <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected] Signed-off-by: Dave Stevenson <[email protected]>
Support displaying DRM_FORMAT_YUV444 and DRM_FORMAT_YVU444 formats. Tested with kmstest and kodi. e.g. kmstest -r 1920x1080@60 -f 400x300-YU24 Note: without the shift of width, only half the chroma is fetched, resulting in correct left half of image and corrupt colours on right half. The increase in width shouldn't affect fetching of Y data, as the hardware will clamp at dest width. Signed-off-by: Dom Cobley <[email protected]> Reviewed-by: Maxime Ripard <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected] Signed-off-by: Dave Stevenson <[email protected]>
The VC4 HDMI driver has a bunch of accessors to read from a register. The read accessor was warning when accessing an unknown register, but the write one was just returning silently. Let's make sure we warn also when writing to an unknown register. Signed-off-by: Maxime Ripard <[email protected]> Reviewed-by: Maxime Ripard <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected] Signed-off-by: Dave Stevenson <[email protected]>
DLIST generation can get pretty tricky and there's not a lot of debug in the driver to help. Let's add a few more to track the generated DLIST size. Signed-off-by: Maxime Ripard <[email protected]> Reviewed-by: Maxime Ripard <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected] Signed-off-by: Dave Stevenson <[email protected]>
We need to allocate a few additional structures when checking our atomic_state, especially related to hardware SRAM that will hold the plane descriptors (DLIST) and the current line context (LBM) during composition. Since those allocation can fail, let's add some error message in that case to help debug what goes wrong. Signed-off-by: Maxime Ripard <[email protected]> Reviewed-by: Maxime Ripard <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected] Signed-off-by: Dave Stevenson <[email protected]>
LBM allocations need a different size depending on the line length, format, etc. This can get tricky, and fail. Let's add some more prints to ease the debugging when it does. Signed-off-by: Maxime Ripard <[email protected]> Reviewed-by: Maxime Ripard <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected] Signed-off-by: Dave Stevenson <[email protected]>
The vc4_plane_atomic_check() directly returns the result of the final function it calls. Using the already defined ret variable to check its content on error, and a separate return 0 on success, makes it easier to extend. Signed-off-by: Maxime Ripard <[email protected]> Reviewed-by: Maxime Ripard <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected] Signed-off-by: Dave Stevenson <[email protected]>
We access multiple times the vc4_crtc_state->assigned_channel variable in the vc4_crtc_get_scanout_position() function, so let's store it in a local variable. Signed-off-by: Maxime Ripard <[email protected]> Reviewed-by: Maxime Ripard <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected] Signed-off-by: Dave Stevenson <[email protected]>
It has been observed that a YUV422 unity scaled plane isn't displayed. Enabling vertical scaling on the UV planes solves this. There is already a similar clause to always enable horizontal scaling on the UV planes. Reviewed-by: Maxime Ripard <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected] Signed-off-by: Dave Stevenson <[email protected]>
ABORT_ON_EMPTY chooses whether the HVS abandons the current frame when it experiences an underflow, or attempts to continue. In theory the frame should be black from the point of underflow, compared to a shift of sebsequent pixels to the left. Unfortunately it seems to put the HVS is a bad state where it is not possible to recover simply. This typically requires a reboot following the 'flip done timed out message'. Discussion with Broadcom has suggested we don't use this flag. All their testing is done with it disabled. Additionally setting BLANK_INSERT_EN causes the HDMI to output blank pixels on an underflow which avoids it losing sync. After this change a 'flip done timed out' due to sdram bandwidth starvation or too low a clock is recoverable once the situation improves. Signed-off-by: Dom Cobley <[email protected]> Reviewed-by: Maxime Ripard <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected] Signed-off-by: Dave Stevenson <[email protected]>
The V3D IP has been separate since BCM2711, so let's make sure we issue a WARN if we're running not only on BCM2711, but also anything newer. Signed-off-by: Maxime Ripard <[email protected]> Reviewed-by: Maxime Ripard <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected] Signed-off-by: Dave Stevenson <[email protected]>
…output Since we'll support BCM2712 soon, let's move the logic behind vc4_hvs_get_fifo_from_output() to a switch to extend it more easily. Signed-off-by: Maxime Ripard <[email protected]> Reviewed-by: Maxime Ripard <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected] Signed-off-by: Dave Stevenson <[email protected]>
Since the BCM2712 will feature a significantly different HVS, let's move the hardware initialisation part of our bind function into a separate function. That way, it will be easier to extend in the future. Signed-off-by: Maxime Ripard <[email protected]> Reviewed-by: Maxime Ripard <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected] Signed-off-by: Dave Stevenson <[email protected]>
Just like the HVS itself, the COB parameters will be fairly different in the BCM2712. Let's move the COB parameters computation and its initialisation to a separate function that will be easier to extend in the future. Signed-off-by: Maxime Ripard <[email protected]> Reviewed-by: Maxime Ripard <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected] Signed-off-by: Dave Stevenson <[email protected]>
The HVS register set has been heavily modified in the BCM2712, and we'll thus need a separate debugfs_reg32 array for it. The name hvs_regs is thus a bit too generic, so let's rename it to something more specific. Signed-off-by: Maxime Ripard <[email protected]> Reviewed-by: Maxime Ripard <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected] Signed-off-by: Dave Stevenson <[email protected]>
The BCM2712 will have a fairly different dlist, that will feature one Pointer 0 word for each plane. Let's prepare by changing the ptr0_offset variable that holds the offset in a dlist of the pointer 0 word to an array. Signed-off-by: Maxime Ripard <[email protected]> Reviewed-by: Maxime Ripard <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected] Signed-off-by: Dave Stevenson <[email protected]>
With the introduction of the support for BCM2712, the check of whether we're running on vc5 or not to compute the LBM alignment requirement doesn't work anymore. Moreover, the LBM size will need to be computed in words for the BCM2712, while we've had sizes in bytes so far. Aligning on either 64 or 32 words is thus fairly harmful on BCM2712, so let's just explicitly align the size when needed, and then call drm_mm_insert_node_generic() with an alignment of 1. Signed-off-by: Maxime Ripard <[email protected]> Reviewed-by: Maxime Ripard <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected] Signed-off-by: Dave Stevenson <[email protected]>
The BCM2712 HVS has registers to report the size of the various SRAM the driver uses, and their size actually differ depending on the stepping. The initialisation of the memory pools happen in the __vc4_hvs_alloc() function that also allocates the main HVS structure, that will then hold the pointer to the memory mapping of the registers. This creates some kind of circular dependency that we can break by passing the mapping pointer as an argument for __vc4_hvs_alloc() to use to query to get the SRAM sizes and initialise the memory pools accordingly. Signed-off-by: Maxime Ripard <[email protected]> Reviewed-by: Maxime Ripard <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected] Signed-off-by: Dave Stevenson <[email protected]>
The offset fields in vc4_plane_state are described as being the offset for each buffer in the bo, however it is used to store the complete DMA address that is then written into the register. The DMA address including the fb ofset can be retrieved using drm_fb_dma_get_gem_addr, and the offset adjustment due to clipping is local to vc4_plane_mode_set. Drop the offset field from the state, and compute the complete DMA address in vc4_plane_mode_set. Reviewed-by: Maxime Ripard <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected] Signed-off-by: Dave Stevenson <[email protected]>
Always enable SCALER_CONTROL before attempting other HVS operations. It's safe to write to some parts of the HVS but in general it's dangerous to do this because it can cause bus lockups. Signed-off-by: Tim Gover <[email protected]> Reviewed-by: Maxime Ripard <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected] Signed-off-by: Dave Stevenson <[email protected]>
Similar to commit f2a4bcb ("drm/v3d: Use v3d_perfmon_find()"), replace the open-coded `vc4_perfmon_find()` with the real thing. Cc: Christian Gmeiner <[email protected]> Signed-off-by: Maíra Canal <[email protected]> Reviewed-by: Juan A. Suarez <[email protected]> Reviewed-by: Christian Gmeiner <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
Use of_device_get_match_data to retrieve the generation value as set in the struct of_device_id, rather than manually comparing compatible strings. Reviewed-by: Maxime Ripard <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected] Signed-off-by: Dave Stevenson <[email protected]>
The frame count values moved within registers DISPSTAT1 and DISPSTAT2 with GEN5, so update the accessor function to accommodate that. Fixes: b51cd7a ("drm/vc4: hvs: Fix frame count register readout") Reviewed-by: Maxime Ripard <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected] Signed-off-by: Dave Stevenson <[email protected]>
The BCM2712 has an improved display pipeline, most notably with a different HVS and only HDMI and writeback outputs. Let's introduce it as a new VideoCore generation and compatible. Signed-off-by: Maxime Ripard <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected] Signed-off-by: Dave Stevenson <[email protected]>
Without this, a default of 0 is used which is very suboptimal for timely service. Consistency with Pi 5 is desired. Signed-off-by: Jonathan Bell <[email protected]>
Allows the usage of ADC8x stacked on top of the DAC8x. Activates all I2S pins and uses now the dummy-dai instead of the formerly used pcm5102 to allow the use of a capture device, too. The simple card driver will probe for the ADC8x and may activate the 8 channel capture. Uses GPIO5 for detection. Signed-off-by: j-schambacher <[email protected]>
The driver probes for the ADC8x which can be stacked on top of the DAC8x. It enables a symmetric 8 channel capture using the dummy-dai. Signed-off-by: j-schambacher <[email protected]>
… imx290" This reverts commit 1180b49.
Add pmkid parameter in "brcmf_auth_req_status_le" structure to align the buffer size defined in firmware "wl_auth_req_status" structure. Link: raspberrypi#6130 Signed-off-by: Ting-Ying Li <[email protected]> Signed-off-by: Phil Elwell <[email protected]>
It was noted that if PV1 was in use to drive DSI1, then the writeback connector could not be used as HVS channel 2 was already in use. The HVS allows PV1 (HVS output 2) to be driven by any HVS channel via the DSP3_MUX setting, but that was hardcoded to be either 2 (for PV1) or disabled for TXP. Expand the available channels field for PV1, and configure DSP3_MUX accordingly. Signed-off-by: Dave Stevenson <[email protected]>
The tests on vc4 (BCM2835-7) were checking for DSI1 muxing being to restricted channel 2, and therefore muxing with TXP was impossible. As we no longer have that restriction, update the capabilities defined for DSI1, move the tests that used to be impossible to the valid list, and extend for additional combinations that are now possible. Signed-off-by: Dave Stevenson <[email protected]>
See: raspberrypi#6497 Signed-off-by: Phil Elwell <[email protected]>
…x327 and imx290"" This reverts commit 7e7e824.
If an HDMI connector has no EDID and the mode is set via the kernel command line, then drm_reset_display_info() is the only thing that will have set up any of connector->display_info. With commit 26ff1c3 ("drm/connector: hdmi: Compute bpc and format automatically"), it is now checked that DRM_COLOR_FORMAT_RGB444 is supported. Whilst it doesn't fail the request, it does log dev_warn for every commit, spamming the log. For HDMI connectors initialise the color_format field to say it supports RGB444. Signed-off-by: Dave Stevenson <[email protected]>
6.12 kernel reworked how ZRAM backends were configured. Let's enable the ones we've lost. I've chosen zstd as the default. 6.6 kernel supported: $ cat /sys/block/zram0/comp_algorithm [lzo-rle] lzo lz4 zstd 6.12 currently supports: $ cat /sys/block/zram0/comp_algorithm [lzo-rle] lzo With this PR 6.12 supports: $ cat /sys/block/zram0/comp_algorithm lzo-rle lzo lz4 [zstd] See: https://forums.raspberrypi.com/viewtopic.php?p=2296678#p2296678 Signed-off-by: Dom Cobley <[email protected]>
Signed-off-by: Micke Prag <[email protected]>
Change the standard rate of PLL_AUDIO_SEC from 192MHz to 153.6MHz to suit audio out. Declare audio out hardware and give it a named pin control. Signed-off-by: Nick Hollinghurst <[email protected]>
…rror Connect PLL_AUDIO_SEC to CLK_AUDIO_OUT, which had been commented out to avoid interference with I2S: we expect them never to be enabled at the same time. Work around a rounding error that occurs when the desired rate is exactly the max but not exactly achievable by the PLL. Signed-off-by: Nick Hollinghurst <[email protected]>
Only 48000Hz stereo 16-bit output is currently supported. It requires some additional OF plumbing to connect it to a "dummy" codec and generic sound card. Signed-off-by: Nick Hollinghurst <[email protected]>
Since RP1 Audio Out can only work on GPIOs 12, 13 which would previously have needed dtoverlay=audremap, overload it both to enable and pin-map the block (do not enable for other pinouts). At the same time, generate a default "codec" and "sound card". Signed-off-by: Nick Hollinghurst <[email protected]>
Signed-off-by: Phil Elwell <[email protected]>
The mutex used in arducam-pivariety was not properly initialized, which could lead to undefined behavior. This also caused a NULL pointer dereference under certain conditions. This patch ensures the mutex is correctly initialized during probe and prevents NULL pointer dereferences. Signed-off-by: Yuriy Pasichnyk <[email protected]>
Support for the RP1 firmware mailbox API is rolling out to Pi 5 EEPROM images. For most users, the fact that the PIO is not available is no cause for alarm. Change the message to a warning, so that it does not appear with "quiet" in cmdline.txt. Link: raspberrypi#6642 Signed-off-by: Phil Elwell <[email protected]>
On Pi5 5, GPIOs 46/48 are made available on the 'CAM/DISP 1' connector as 'CD1_IO0_MICCLK'/'CD1_IO1_MICDAT1'. These GPIOs are not connected on CM5. Add hogs for GPIO 46/48 on CM5 to prevent camera drivers from inadvertently using them when connected to 'CAM/DISP 1' Signed-off-by: Richard Oliver <[email protected]>
In some circumstances, devm_gpiod_get_array_optional() can return PTR_ERR rather than NULL to indicate failure. Handle these cases. Signed-off-by: Richard Oliver <[email protected]>
Fast transfer mode requires that the first bit of data is clocked with a rising edge. This can cause extra bits of data to be clocked on hardware where the clock signal uses a pull-up. This change ensures that clk is driven low before fast data transfer mode is entered. Signed-off-by: Richard Oliver <[email protected]>
Acknowledge the fact that bcmrpi3_defconfig is neither used nor supported by us, and avoid a bunch of future merge conflicts since it is already gone from rpi-6.14.y. Signed-off-by: Phil Elwell <[email protected]>
…ed allocations Add iommu_dma_numa_policy= kernel parameter which can be used to modify the NUMA allocation policy of remapped buffer allocations. Policy is only used for devices which are not associated with a NUMA node. Syntax identical to what tmpfs accepts as it's mpol argument is accepted. Some examples: iommu_dma_numa_policy=interleave iommu_dma_numa_policy=interleave=skip-interleave iommu_dma_numa_policy=bind:0-3,5,7,9-15 iommu_dma_numa_policy=bind=static:1-2 Signed-off-by: Tvrtko Ursulin <[email protected]>
To help work around certain memory controller limitations or similar, a random NUMA allocation memory policy is added. Signed-off-by: Tvrtko Ursulin <[email protected]>
The presence of bcm7445 in the gio_aon compatible strings should be cosmetic, but it doesn't match gio and it breaks the pinctrl utility. Standardise on just brcm,bcmstb-gpio, while also making a note to improve pinctrl. Signed-off-by: Phil Elwell <[email protected]>
Instead of trying to minimize the delay between seeing HSYNC edge and asserting VSYNC, try to predict the next HSYNC edge precisely. This eliminates the round-trip delay but introduces mode-dependent rounding error. HSYNC->VSYNC lag reduced from ~30ns to -5ns..+10ns (plus up to 5ns synchronization jitter as before). This may benefit e.g. SCART HATs, particularly those that generate Composite Sync using a XNOR gate. Signed-off-by: Nick Hollinghurst <[email protected]>
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Whoops wrong target branch |
njhollinghurst
changed the title
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Instead of trying to minimize the HSync -> VSync lag, count cycles to predict the next HSync.
It reduces the HSync->VSync offset from about (+30ns .. +35ns), to about (-5ns .. +10ns). There is some mode-dependent rounding error, but for a given video mode the jitter is ~5ns as before.
This is mainly for the benefit of SCART Hats, particularly those that use an XOR gate to generate Composite Sync, which otherwise could produce glitchy output when used in an interlaced mode with Raspberry Pi 5.
Net shortening of the DPI PIO code, leaves all of 5 instructions now free.