From: Daniil Gnusarev <gnusarevda@basealt.ru> To: devel-kernel@lists.altlinux.org Subject: [d-kernel] [PATCH 38/39] drm: baikal-vdu: disable backlight driver loading Date: Mon, 14 Oct 2024 18:02:19 +0400 Message-ID: <20241014140221.535985-39-gnusarevda@basealt.ru> (raw) In-Reply-To: <20241014140221.535985-1-gnusarevda@basealt.ru> When starting the driver with lvds an error occurs: [ 14.310460] BUG: scheduling while atomic: swapper/3/0/0x00000103 [ 14.322780] Modules linked in: ..... [ 14.395894] CPU: 3 PID: 0 Comm: swapper/3 Tainted: G W 6.6.41+ #87 [ 14.411147] Hardware name: Edelweiss TF307-MB-S-D/BM1BM1-D, BIOS 5.3 01/10/2022 [ 14.418471] Call trace: [ 14.420925] dump_backtrace+0xa4/0x130 [ 14.424693] show_stack+0x20/0x38 [ 14.428018] dump_stack_lvl+0x48/0x60 [ 14.431696] dump_stack+0x18/0x28 [ 14.435022] __schedule_bug+0x58/0x78 [ 14.438698] __schedule+0x1094/0x17d0 [ 14.442373] schedule+0x64/0x108 [ 14.445611] schedule_preempt_disabled+0x2c/0x50 [ 14.450241] rwsem_down_read_slowpath+0x1e0/0x538 [ 14.454958] down_read+0xb8/0xc8 [ 14.458198] kernfs_find_and_get_ns+0x44/0x88 [ 14.462570] sysfs_notify+0xa4/0xc0 [ 14.466068] backlight_force_update+0xb4/0x118 [ 14.470528] baikal_vdu_input_event+0x7c/0x160 [baikal_vdu_drm] Presumably the error occurs when calling sysfs_notify in the event handler. The called function tries to sleep when executed, which is undesirable. Disable the backlight driver until the problem is solved Signed-off-by: Daniil Gnusarev <gnusarevda@basealt.ru> --- drivers/gpu/drm/baikal/baikal_vdu_drv.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/baikal/baikal_vdu_drv.c b/drivers/gpu/drm/baikal/baikal_vdu_drv.c index 63a4916b33e93..bb37939145c32 100644 --- a/drivers/gpu/drm/baikal/baikal_vdu_drv.c +++ b/drivers/gpu/drm/baikal/baikal_vdu_drv.c @@ -457,10 +457,12 @@ static int baikal_vdu_drm_probe(struct platform_device *pdev) dev_info(dev, "No 'lvds-lanes' property found\n"); } if (lvds->ready) { +#if 0 ret = baikal_vdu_backlight_create(drm); if (ret) { dev_err(dev, "LVDS: failed to create backlight\n"); } +#endif if (bridge_is_baikal_lvds_bridge(lvds->bridge)) { panel_bridge = bridge_to_baikal_lvds_bridge(lvds->bridge); panel_bridge->vdu = lvds; -- 2.42.2
next prev parent reply other threads:[~2024-10-14 14:02 UTC|newest] Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top 2024-10-14 14:01 [d-kernel] [PATCH 00/39] Support Baikal-M in un-def in p11 Daniil Gnusarev 2024-10-14 14:01 ` [d-kernel] [PATCH 01/39] Baikal Electronics SoC family Daniil Gnusarev 2024-10-14 14:01 ` [d-kernel] [PATCH 02/39] Clk: Add clock drivers for Baikal BE-M1000 with new firmware Daniil Gnusarev 2024-10-14 14:01 ` [d-kernel] [PATCH 03/39] USB: Add support for Baikal USB PHY Daniil Gnusarev 2024-10-14 14:01 ` [d-kernel] [PATCH 04/39] PCI: Add support for PCIe controller for Baikal BE-M1000 Daniil Gnusarev 2024-10-14 14:01 ` [d-kernel] [PATCH 05/39] AHCI SATA: Add support " Daniil Gnusarev 2024-10-14 14:01 ` [d-kernel] [PATCH 06/39] UART: Add support for UART " Daniil Gnusarev 2024-10-14 14:01 ` [d-kernel] [PATCH 07/39] cpufreq-dt: don't load on Baikal-M SoC Daniil Gnusarev 2024-10-14 14:01 ` [d-kernel] [PATCH 08/39] Sound: add support for Baikal BE-M1000 I2S Daniil Gnusarev 2024-10-14 14:01 ` [d-kernel] [PATCH 09/39] sound: baikal-i2s: paper over RX overrun warnings on Baikal-M Daniil Gnusarev 2024-10-14 14:01 ` [d-kernel] [PATCH 10/39] net: stmmac: support of Baikal-BE1000 SoCs GMAC Daniil Gnusarev 2024-10-14 14:01 ` [d-kernel] [PATCH 11/39] net: fwnode_get_phy_id: consider all compatible strings Daniil Gnusarev 2024-10-14 14:01 ` [d-kernel] [PATCH 12/39] hwmon: bt1-pvt: access registers via pvt_{readl, writel} helpers Daniil Gnusarev 2024-10-14 14:01 ` [d-kernel] [PATCH 13/39] hwmon: bt1-pvt: define pvt_readl/pvt_writel for Baikal-M SoC Daniil Gnusarev 2024-10-14 14:01 ` [d-kernel] [PATCH 14/39] hwmon: bt1-pvt: adjusted probing " Daniil Gnusarev 2024-10-14 14:01 ` [d-kernel] [PATCH 15/39] hwmon: bt1-pvt: added compatible baikal, pvt Daniil Gnusarev 2024-10-14 14:01 ` [d-kernel] [PATCH 16/39] PVT: support register addressing with new firmware Daniil Gnusarev 2024-10-14 14:01 ` [d-kernel] [PATCH 17/39] drm: add Baikal-M SoC video display unit driver Daniil Gnusarev 2024-10-14 14:01 ` [d-kernel] [PATCH 18/39] drm/bridge: dw-hdmi: support ahb audio hw revision 0x2a Daniil Gnusarev 2024-10-14 14:02 ` [d-kernel] [PATCH 19/39] dt-bindings: dw-hdmi: added ahb-audio-regshift Daniil Gnusarev 2024-10-14 14:02 ` [d-kernel] [PATCH 20/39] drm/bridge: dw-hdmi: force ahb audio register offset for Baikal-M Daniil Gnusarev 2024-10-14 14:02 ` [d-kernel] [PATCH 21/39] drm/panfrost: forcibly set dma-coherent on Baikal-M Daniil Gnusarev 2024-10-14 14:02 ` [d-kernel] [PATCH 22/39] drm/panfrost: disable devfreq " Daniil Gnusarev 2024-10-14 14:02 ` [d-kernel] [PATCH 23/39] bmc: add board management controller driver Daniil Gnusarev 2024-10-14 14:02 ` [d-kernel] [PATCH 24/39] pm: disable all sleep states on Baikal-M based boards Daniil Gnusarev 2024-10-14 14:02 ` [d-kernel] [PATCH 25/39] sound: dwc-i2s: paper over RX overrun warnings on Baikal-M Daniil Gnusarev 2024-10-14 14:02 ` [d-kernel] [PATCH 26/39] sound: dwc-i2s: request all IRQs specified in device tree Daniil Gnusarev 2024-10-14 14:02 ` [d-kernel] [PATCH 27/39] usb: dwc3: of-simple: added compatible string for Baikal-M SoC Daniil Gnusarev 2024-10-14 14:02 ` [d-kernel] [PATCH 28/39] serial: 8250_dw: verify clock rate in dw8250_set_termios Daniil Gnusarev 2024-10-14 14:02 ` [d-kernel] [PATCH 29/39] clk: use "cmu-id" if there is no "reg" in devicetree Daniil Gnusarev 2024-10-14 14:02 ` [d-kernel] [PATCH 30/39] pci: baikal-pcie: driver compatibility with SDK earlier than 5.7 Daniil Gnusarev 2024-10-14 14:02 ` [d-kernel] [PATCH 31/39] pci: baikal-pcie: driver compatibility with SDK versions 5.4 Daniil Gnusarev 2024-10-14 14:02 ` [d-kernel] [PATCH 32/39] dw-pcie: refuse to load on Baikal-M with recent firmware Daniil Gnusarev 2024-10-14 14:02 ` [d-kernel] [PATCH 33/39] drm: baikal-vdu: driver compatibility with SDK earlier than 5.9 Daniil Gnusarev 2024-10-14 14:02 ` [d-kernel] [PATCH 34/39] input: new driver - serdev-serio Daniil Gnusarev 2024-10-14 14:02 ` [d-kernel] [PATCH 35/39] input: added TF307 serio PS/2 emulator driver Daniil Gnusarev 2024-10-14 14:02 ` [d-kernel] [PATCH 36/39] input: tp_serio: catch up API changes Daniil Gnusarev 2024-10-14 14:02 ` [d-kernel] [PATCH 37/39] drm: baikal-m: add vblank events, fix mode switching Daniil Gnusarev 2024-10-14 14:02 ` Daniil Gnusarev [this message] 2024-10-14 14:02 ` [d-kernel] [PATCH 39/39] config-aarch64: enable more configs for baikal-m support Daniil Gnusarev 2024-10-14 14:28 ` [d-kernel] [PATCH 00/39] Support Baikal-M in un-def in p11 Vitaly Chikunov
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