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Mon, 13 Jan 2020 06:13:58 -0600 Received: from DLEE111.ent.ti.com (157.170.170.22) by DLEE107.ent.ti.com (157.170.170.37) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1847.3; Mon, 13 Jan 2020 06:13:58 -0600 Received: from lelv0327.itg.ti.com (10.180.67.183) by DLEE111.ent.ti.com (157.170.170.22) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1847.3 via Frontend Transport; Mon, 13 Jan 2020 06:13:58 -0600 Received: from [172.24.145.246] (ileax41-snat.itg.ti.com [10.172.224.153]) by lelv0327.itg.ti.com (8.15.2/8.15.2) with ESMTP id 00DCDt2L126167; Mon, 13 Jan 2020 06:13:56 -0600 Subject: Re: [PATCH] ARM: davinci: dm365-evm: Add Fixed regulators needed for tlv320aic3101 To: Peter Ujfalusi , References: <20190830102252.22488-1-peter.ujfalusi@ti.com> <698562e3-6391-f0e3-a7a8-f64794cfa33e@ti.com> <7a6179ab-6ef1-767d-9b19-576aa1c6dcdd@ti.com> <14d31170-82ab-f263-e23d-14835e968ce3@ti.com> From: Sekhar Nori Message-ID: <2f30f543-f96f-e464-03b4-d0160063e5eb@ti.com> Date: Mon, 13 Jan 2020 17:43:55 +0530 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.9.0 MIME-Version: 1.0 In-Reply-To: <14d31170-82ab-f263-e23d-14835e968ce3@ti.com> Content-Language: en-US X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200113_041359_994461_4F4C8578 X-CRM114-Status: GOOD ( 18.49 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 22/10/19 1:12 PM, Peter Ujfalusi wrote: > > > On 21/10/2019 13.40, Peter Ujfalusi wrote: >> >> >> On 17/10/2019 16.49, Sekhar Nori wrote: >>> On 17/10/19 4:39 PM, Sekhar Nori wrote: >>>> On 30/08/19 3:52 PM, Peter Ujfalusi wrote: >>>>> The codec driver needs correct regulators in order to probe. >>>>> Both VCC_3V3 and VCC_1V8 is always on fixed regulators on the board. >>>>> >>>>> Signed-off-by: Peter Ujfalusi >>>> >>>> Applied for v5.4 >>> >>> This is breaking boot on DM365 EVM. >>> >>> Booting Linux on physical CPU 0x0 >>> Linux version 5.4.0-rc1-00001-g927d10a85791-dirty (a0875516@psplinux063) (gcc v9 >>> CPU: ARM926EJ-S [41069265] revision 5 (ARMv5TEJ), cr=0005317f >>> CPU: VIVT data cache, VIVT instruction cache >>> Machine: DaVinci DM365 EVM >>> Memory policy: Data cache writethrough >>> cma: Reserved 16 MiB at 0x86c00000 >>> DaVinci dm365_rev1.1 variant 0x0 >>> On node 0 totalpages: 32768 >>> DMA zone: 256 pages used for memmap >>> DMA zone: 0 pages reserved >>> DMA zone: 32768 pages, LIFO batch:7 >>> pcpu-alloc: s0 r0 d32768 u32768 alloc=1*32768 >>> pcpu-alloc: [0] 0 >>> Built 1 zonelists, mobility grouping on. Total pages: 32512 >>> Kernel command line: console=ttyS0,115200n8 root=/dev/nfs rw nfsroot=172.24.210p >>> Dentry cache hash table entries: 16384 (order: 4, 65536 bytes, linear) >>> Inode-cache hash table entries: 8192 (order: 3, 32768 bytes, linear) >>> mem auto-init: stack:off, heap alloc:off, heap free:off >>> Memory: 106776K/131072K available (4760K kernel code, 253K rwdata, 1160K rodata) >>> SLUB: HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1 >>> rcu: Preemptible hierarchical RCU implementation. >>> Tasks RCU enabled. >>> rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies. >>> NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16 >>> random: get_random_bytes called from start_kernel+0x25c/0x440 with crng_init=0 >>> clocksource: timer0_1: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 79s >>> sched_clock: 32 bits at 24MHz, resolution 41ns, wraps every 89478484971ns >>> Console: colour dummy device 80x30 >>> Calibrating delay loop... 146.84 BogoMIPS (lpj=734208) >>> pid_max: default: 32768 minimum: 301 >>> Mount-cache hash table entries: 1024 (order: 0, 4096 bytes, linear) >>> Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes, linear) >>> CPU: Testing write buffer coherency: ok >>> Setting up static identity map for 0x80008400 - 0x80008458 >>> rcu: Hierarchical SRCU implementation. >>> devtmpfs: initialized >>> clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 191s >>> futex hash table entries: 256 (order: -1, 3072 bytes, linear) >>> pinctrl core: initialized pinctrl subsystem >>> NET: Registered protocol family 16 >>> DMA: preallocated 256 KiB pool for atomic coherent allocations >>> mux: initialized INT_EDMA_CC >>> mux: Setting register INT_EDMA_CC >>> mux: INTMUX (0x00000018) = 0x00000000 -> 0x00000004 >>> cpuidle: using governor menu >>> mux: initialized INT_EMAC_RXTHRESH >>> mux: Setting register INT_EMAC_RXTHRESH >>> mux: INTMUX (0x00000018) = 0x00000004 -> 0x00004004 >>> mux: initialized INT_EMAC_RXPULSE >>> mux: Setting register INT_EMAC_RXPULSE >>> mux: INTMUX (0x00000018) = 0x00004004 -> 0x0000c004 >>> mux: initialized INT_EMAC_TXPULSE >>> mux: Setting register INT_EMAC_TXPULSE >>> mux: INTMUX (0x00000018) = 0x0000c004 -> 0x0001c004 >>> mux: initialized INT_EMAC_MISCPULSE >>> mux: Setting register INT_EMAC_MISCPULSE >>> mux: INTMUX (0x00000018) = 0x0001c004 -> 0x0003c004 >>> EVM: tvp5146 SD video input >>> mux: initialized INT_PRTCSS >>> mux: Setting register INT_PRTCSS >>> mux: INTMUX (0x00000018) = 0x0003c004 -> 0x0003c404 >>> mux: initialized SPI0_SCLK >>> mux: Setting register SPI0_SCLK >>> mux: PINMUX3 (0x0000000c) = 0x015affff -> 0x115affff >>> mux: initialized SPI0_SDI >>> mux: Setting register SPI0_SDI >>> mux: PINMUX3 (0x0000000c) = 0x115affff -> 0x155affff >>> mux: initialized SPI0_SDO >>> mux: Setting register SPI0_SDO >>> mux: PINMUX3 (0x0000000c) = 0x155affff -> 0x175affff >>> mux: initialized SPI0_SDENA0 >>> mux: Setting register SPI0_SDENA0 >>> mux: PINMUX3 (0x0000000c) = 0x175affff -> 0x375affff >>> edma edma.0: Legacy memcpy is enabled, things might not work >>> edma edma.0: TI EDMA DMA engine driver >>> 8<--- cut here --- >>> Unable to handle kernel NULL pointer dereference at virtual address 000000c0 >>> pgd = (ptrval) >>> [000000c0] *pgd=00000000 >>> Internal error: Oops: 5 [#1] PREEMPT ARM >>> Modules linked in: >>> CPU: 0 PID: 1 Comm: swapper Not tainted 5.4.0-rc1-00001-g927d10a85791-dirty #146 >>> Hardware name: DaVinci DM365 EVM >>> PC is at reg_fixed_voltage_probe+0x30/0x2ec >>> LR is at reg_fixed_voltage_probe+0x2c/0x2ec >>> pc : [] lr : [] psr: 60000053 >>> sp : c6837de0 ip : 00000000 fp : c062cfd8 >>> r10: c05f44a8 r9 : 00000000 r8 : c68a24d0 >>> r7 : c0631008 r6 : c68a24e0 r5 : 00000000 r4 : c68a24e0 >>> r3 : 00000000 r2 : c065a854 r1 : 00000000 r0 : 00000000 >>> Flags: nZCv IRQs on FIQs off Mode SVC_32 ISA ARM Segment none >>> Control: 0005317f Table: 80004000 DAC: 00000053 >>> Process swapper (pid: 1, stack limit = 0x(ptrval)) >>> Stack: (0xc6837de0 to 0xc6838000) >>> 7de0: c689be40 c0167044 00000000 c68f4720 c68f4660 c68f4660 c68f4720 c689be40 >>> 7e00: c0575ca4 64d9cb0d 00000000 c68a24e0 00000000 c065a854 c065a854 00000000 >>> 7e20: 00000000 c05f44a8 c062cfd8 c02e0a64 c68a24e0 c0688d00 00000000 c02dec54 >>> 7e40: c68a24e0 c065a854 c065a854 c0631008 ffffe000 c061e828 c05f44a8 c02def44 >>> 7e60: 00000000 ffffff08 ffff0a00 c68a24e0 00000000 c065a854 c0631008 ffffe000 >>> 7e80: c061e828 c05f44a8 c062cfd8 c02df1f8 00000000 c065a854 c68a24e0 c02df258 >>> 7ea0: c68337b0 c065a854 c02df200 c02dced4 c061e828 c681db90 c68337b0 64d9cb0d >>> 7ec0: c062cfd8 c065a854 c682af00 c065ea48 00000000 c02de070 c054f984 c0494cc0 >>> 7ee0: c065a854 c065a854 c0631008 c060b098 00000000 c02dfb04 c066d5c0 c0631008 >>> 7f00: c060b098 c000a624 0000007f c7fffea8 c05d00c4 00000000 c7fffee9 c00372e0 >>> 7f20: c05cf6d8 c0549714 00000000 00000004 00000004 00000000 00000000 c7fffee2 >>> 7f40: c7fffee5 64d9cb0d 00000000 0000007f c061e844 64d9cb0d 0000007f c061e848 >>> 7f60: 00000005 c066d5c0 c066d5c0 c05f4e6c 00000004 00000004 00000000 c05f44a8 >>> 7f80: 00000000 00000000 c04a71bc 00000000 00000000 00000000 00000000 00000000 >>> 7fa0: 00000000 c04a71c4 00000000 c00090e0 00000000 00000000 00000000 00000000 >>> 7fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 >>> 7fe0: 00000000 00000000 00000000 00000000 00000013 00000000 00000000 00000000 >>> [] (reg_fixed_voltage_probe) from [] (platform_drv_probe+0x) >>> [] (platform_drv_probe) from [] (really_probe+0x1e0/0x34c) >>> [] (really_probe) from [] (driver_probe_device+0x5c/0x168) >>> [] (driver_probe_device) from [] (device_driver_attach+0x58) >>> [] (device_driver_attach) from [] (__driver_attach+0x58/0xc) >>> [] (__driver_attach) from [] (bus_for_each_dev+0x70/0xb4) >>> [] (bus_for_each_dev) from [] (bus_add_driver+0x194/0x1cc) >>> [] (bus_add_driver) from [] (driver_register+0x74/0x108) >>> [] (driver_register) from [] (do_one_initcall+0x6c/0x1d8) >>> [] (do_one_initcall) from [] (kernel_init_freeable+0x10c/0x) >>> [] (kernel_init_freeable) from [] (kernel_init+0x8/0xec) >>> [] (kernel_init) from [] (ret_from_fork+0x14/0x34) >>> Exception stack(0xc6837fb0 to 0xc6837ff8) >>> 7fa0: 00000000 00000000 00000000 00000000 >>> 7fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 >>> 7fe0: 00000000 00000000 00000000 00000000 00000013 00000000 >>> Code: e5920018 e58d3024 eb02b71e e3a03000 (e59090c0) >>> ---[ end trace 90e87368a248f7f6 ]--- >>> Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b >> >> Interesting. >> Something has changed in regulators core which causes crash when not >> booted with DT? >> >> It did worked when I have sent the patches. I'll take a look what might >> be the issue. > > can this be the fix: https://lkml.org/lkml/2019/9/21/199 ? It seems like, and I confirm it works now! Queuing for v5.6 Thanks, Sekhar _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel