kernel/linux.git/drivers/gpu/drm/vc4, branch v5.10.89

drm/vc4: fix error code in vc4_create_object()

2021-12-01T08:19:04+00:00

[ Upstream commit 96c5f82ef0a145d3e56e5b26f2bf6dcd2ffeae1c ] The ->gem_create_object() functions are supposed to return NULL if there is an error. None of the callers expect error pointers so returing one will lead to an Oops. See drm_gem_vram_create(), for example. Fixes: c826a6e10644 ("drm/vc4: Add a BO cache.") Signed-off-by: Dan Carpenter Signed-off-by: Maxime Ripard Link: https://patchwork.freedesktop.org/patch/msgid/20211118111416.GC1147@kili Signed-off-by: Sasha Levin

drm/vc4: hdmi: Set HD_CTL_WHOLSMP and HD_CTL_CHALIGN_SET

2021-09-18T11:40:17+00:00

[ Upstream commit 1698ecb218eb82587dbfc71a2e26ded66e5ecf59 ] Symptom is random switching of speakers when using multichannel. Repeatedly running speakertest -c8 occasionally starts with channels jumbled. This is fixed with HD_CTL_WHOLSMP. The other bit looks beneficial and apears harmless in testing so I'd suggest adding it too. Documentation says: HD_CTL_WHILSMP_SET Wait for whole sample. When this bit is set MAI transmit will start only when there is at least one whole sample available in the fifo. Documentation says: HD_CTL_CHALIGN_SET Channel Align When Overflow. This bit is used to realign the audio channels in case of an overflow. If this bit is set, after the detection of an overflow, equal amount of dummy words to the missing words will be written to fifo, filling up the broken sample and maintaining alignment. Signed-off-by: Dom Cobley Signed-off-by: Maxime Ripard Reviewed-by: Nicolas Saenz Julienne Link: https://patchwork.freedesktop.org/patch/msgid/20210525132354.297468-7-maxime@cerno.tech Signed-off-by: Sasha Levin

drm/vc4: hdmi: Prevent clock unbalance

2021-07-19T07:44:57+00:00

commit 5b006000423667ef0f55721fc93e477b31f22d28 upstream. Since we fixed the hooks to disable the encoder at boot, we now have an unbalanced clk_disable call at boot since we never enabled them in the first place. Let's mimic the state of the hardware and enable the clocks at boot if the controller is enabled to get the use-count right. Cc: # v5.10+ Fixes: 09c438139b8f ("drm/vc4: hdmi: Implement finer-grained hooks") Signed-off-by: Maxime Ripard Reviewed-by: Dave Stevenson Link: https://patchwork.freedesktop.org/patch/msgid/20210507150515.257424-7-maxime@cerno.tech Signed-off-by: Greg Kroah-Hartman

drm/vc4: crtc: Skip the TXP

2021-07-19T07:44:57+00:00

commit 47a50743031ad4138050ae6d266ddd3dfe845ead upstream. The vc4_set_crtc_possible_masks is meant to run over all the encoders and then set their possible_crtcs mask to their associated pixelvalve. However, since the commit 39fcb2808376 ("drm/vc4: txp: Turn the TXP into a CRTC of its own"), the TXP has been turned to a CRTC and encoder of its own, and while it does indeed register an encoder, it no longer has an associated pixelvalve. The code will thus run over the TXP encoder and set a bogus possible_crtcs mask, overriding the one set in the TXP bind function. In order to fix this, let's skip any virtual encoder. Cc: # v5.9+ Fixes: 39fcb2808376 ("drm/vc4: txp: Turn the TXP into a CRTC of its own") Acked-by: Thomas Zimmermann Signed-off-by: Maxime Ripard Link: https://patchwork.freedesktop.org/patch/msgid/20210507150515.257424-3-maxime@cerno.tech Signed-off-by: Greg Kroah-Hartman

drm/vc4: txp: Properly set the possible_crtcs mask

2021-07-19T07:44:57+00:00

commit bf6de8e61509f3c957d7f75f017b18d40a18a950 upstream. The current code does a binary OR on the possible_crtcs variable of the TXP encoder, while we want to set it to that value instead. Cc: # v5.9+ Fixes: 39fcb2808376 ("drm/vc4: txp: Turn the TXP into a CRTC of its own") Acked-by: Thomas Zimmermann Signed-off-by: Maxime Ripard Link: https://patchwork.freedesktop.org/patch/msgid/20210507150515.257424-2-maxime@cerno.tech Signed-off-by: Greg Kroah-Hartman

drm/vc4: hdmi: Fix PM reference leak in vc4_hdmi_encoder_pre_crtc_co()

2021-07-19T07:44:41+00:00

[ Upstream commit 5e4322a8b266bc9f5ee7ea4895f661c01dbd7cb3 ] pm_runtime_get_sync will increment pm usage counter even it failed. Forgetting to putting operation will result in reference leak here. Fix it by replacing it with pm_runtime_resume_and_get to keep usage counter balanced. Reported-by: Hulk Robot Signed-off-by: Zou Wei Signed-off-by: Maxime Ripard Link: https://patchwork.freedesktop.org/patch/msgid/1621840854-105978-1-git-send-email-zou_wei@huawei.com Signed-off-by: Sasha Levin

drm/vc4: Fix clock source for VEC PixelValve on BCM2711

2021-07-19T07:44:41+00:00

[ Upstream commit fc7a8abcee2225d6279ff785d33e24d70c738c6e ] On the BCM2711 (Raspberry Pi 4), the VEC is actually connected to output 2 of pixelvalve3. NOTE: This contradicts the Broadcom docs, but has been empirically tested and confirmed by Raspberry Pi firmware devs. Signed-off-by: Mateusz Kwiatkowski Signed-off-by: Maxime Ripard Reviewed-by: Dave Stevenson Link: https://patchwork.freedesktop.org/patch/msgid/20210520150344.273900-2-maxime@cerno.tech Signed-off-by: Sasha Levin

drm/vc4: fix argument ordering in vc4_crtc_get_margins()

2021-07-19T07:44:37+00:00

[ Upstream commit e590c2b03a6143ba93ddad306bc9eaafa838c020 ] Cppcheck complains that the declaration doesn't match the function definition. Obviously "left" should come before "right". The caller and the function implementation are done this way, it's just the declaration which is wrong so this doesn't affect runtime. Reported-by: kernel test robot Signed-off-by: Dan Carpenter Signed-off-by: Maxime Ripard Link: https://patchwork.freedesktop.org/patch/msgid/YH/720FD978TPhHp@mwanda Signed-off-by: Sasha Levin

drm/vc4: hdmi: Fix error path of hpd-gpios

2021-07-14T14:56:19+00:00

[ Upstream commit e075a7811977ff51c917a65ed1896e08231d2615 ] If the of_get_named_gpio_flags call fails in vc4_hdmi_bind, we jump to the err_unprepare_hsm label. That label will then call pm_runtime_disable and put_device on the DDC device. We just retrieved the DDC device, so the latter is definitely justified. However at that point we still haven't called pm_runtime_enable, so the call to pm_runtime_disable is not supposed to be there. Fixes: 10ee275cb12f ("drm/vc4: prepare for CEC support") Signed-off-by: Maxime Ripard Reviewed-by: Linus Walleij Link: https://patchwork.freedesktop.org/patch/msgid/20210524131852.263883-1-maxime@cerno.tech Signed-off-by: Sasha Levin

drm/vc4: hdmi: Make sure the controller is powered in detect

2021-06-30T12:47:17+00:00

[ Upstream commit 9984d6664ce9dcbbc713962539eaf7636ea246c2 ] If the HPD GPIO is not available and drm_probe_ddc fails, we end up reading the HDMI_HOTPLUG register, but the controller might be powered off resulting in a CPU hang. Make sure we have the power domain and the HSM clock powered during the detect cycle to prevent the hang from happening. Fixes: 4f6e3d66ac52 ("drm/vc4: Add runtime PM support to the HDMI encoder driver") Signed-off-by: Maxime Ripard Reviewed-by: Dave Stevenson Link: https://patchwork.freedesktop.org/patch/msgid/20210525091059.234116-4-maxime@cerno.tech Signed-off-by: Sasha Levin