Commits
Robert Chiras committed cd1a5361f83
MLK-17149-2: arm64: dts: fsl-imx8mq.dtsi: Remove dummy clocks from lcdif Apparently, the CLK_DUMMY implementation is not so reliable, since this can occur when doing a clk_disable_unprepare on a CLK_DUMMY clock: [ 51.197744] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G W 4.9.51-03878-g6c48bec #415 [ 51.206354] Hardware name: Freescale i.MX8MQ EVK (DT) [ 51.211405] Call trace: [ 51.213868] [<ffff0000080884c8>] dump_backtrace+0x0/0x1a0 [ 51.219273] [<ffff00000808867c>] show_stack+0x14/0x20 [ 51.224327] [<ffff0000083dd91c>] dump_stack+0x94/0xb8 [ 51.229383] [<ffff0000080df898>] __schedule_bug+0x50/0x70 [ 51.234786] [<ffff000008c24578>] __schedule+0x4c0/0x580 [ 51.240013] [<ffff000008c24674>] schedule+0x3c/0xa8 [ 51.244893] [<ffff000008c24a70>] schedule_preempt_disabled+0x20/0x38 [ 51.251252] [<ffff0000080f966c>] mutex_optimistic_spin+0x194/0x1d8 [ 51.257434] [<ffff000008c25f28>] __mutex_lock_slowpath+0x38/0x140 [ 51.263529] [<ffff000008c26074>] mutex_lock+0x44/0x60 [ 51.268589] [<ffff0000084d9914>] clk_prepare_lock+0x44/0xd8 [ 51.274163] [<ffff0000084db378>] clk_unprepare+0x20/0x40 [ 51.279478] [<ffff00000860827c>] mxsfb_disable_axi_clk+0x24/0x30 [ 51.285485] [<ffff0000086082d8>] mxsfb_irq_handler+0x50/0x60 [ 51.291144] [<ffff000008102c84>] __handle_irq_event_percpu+0x9c/0x128 [ 51.297584] [<ffff000008102d2c>] handle_irq_event_percpu+0x1c/0x58 [ 51.303762] [<ffff000008102db0>] handle_irq_event+0x48/0x78 [ 51.309334] [<ffff0000081066f0>] handle_fasteoi_irq+0xb8/0x1b0 [ 51.315165] [<ffff000008101d7c>] generic_handle_irq+0x24/0x38 [ 51.320910] [<ffff0000081023ec>] __handle_domain_irq+0x5c/0xb8 [ 51.326742] [<ffff00000808163c>] gic_handle_irq+0xbc/0x168 [ 51.332226] Exception stack(0xffff000009253d90 to 0xffff000009253ec0) Since AXI and DISP_AXI are optional clocks according to the driver, there is no need for dummy clocks in DTS, so remove them. Signed-off-by: Robert Chiras <robert.chiras@nxp.com> Reviewed-by: Laurentiu Palcu <laurentiu.palcu@nxp.com>