Re: [PATCH] soundwire: qcom: Check device status before reading devid

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On Sat, 13 Aug 2022 at 19:42, Amit Pundir <amit.pundir@xxxxxxxxxx> wrote:
>
> On Wed, 6 Jul 2022 at 22:15, Vinod Koul <vkoul@xxxxxxxxxx> wrote:
> >
> > On 06-07-22, 10:56, Srinivas Kandagatla wrote:
> > > As per hardware datasheet its recommended that we check the device
> > > status before reading devid assigned by auto-enumeration.
> > >
> > > Without this patch we see SoundWire devices with invalid enumeration
> > > addresses on the bus.
> >
> > Applied, thanks
>
> Hi,
>
> This broke DB845c running AOSP. I see:

Nevermind. I reported this breakage on "soundwire-5.20-rc1" pull
request along with an another soundwire breakage that I see on DB845c.
Please consider this as duplicate.

Regards,
Amit Pundir

>
> [   10.753773][  T234]  regmap_slimbus slimbus regmap_sdw
> soundwire_bus r820t qt1010 qrtr_tun qrtr_smd qrtr_mhi qrtr qnoc_sm8250
> qnoc_sdm845 qm1d1c0042 qm1d1b0004 qcom_usb_vbus_regulator qcom_tsens
> qcom_spmi_regulator qcom_rpm qcom_q6v5_wcss qcom_q6v5_pas
> qcom_q6v5_mss qcom_q6v5_adsp qcom_q6v5 qcom_sysmon qcom_pil_info
> qcom_hwspinlock qcom_glink_rpm qcom_aoss qcom_wdt qcom_spmi_temp_alarm
> qcom_spmi_pmic regmap_spmi qcom_spmi_adc5 qcom_spmi_adc_tm5
> qcom_vadc_common qcom_rpmh_regulator qcom_pon reboot_mode
> qcom_pmic_typec qcom_pdc qcom_ipcc qcom_cpufreq_hw
> qcom_apcs_ipc_mailbox q6prm_clocks q6prm q6asm_dai q6routing q6asm
> q6apm_lpass_dais q6apm_dai snd_q6apm q6afe_dai q6afe_clocks q6adm
> snd_q6dsp_common q6afe q6core pm8941_pwrkey pm8916_wdt
> pinctrl_spmi_mpp pinctrl_spmi_gpio pinctrl_sm8250
> pinctrl_sm8250_lpass_lpi pinctrl_sdm845 pinctrl_msm pinctrl_lpass_lpi
> phy_qcom_usb_hs ulpi phy_qcom_snps_femto_v2 phy_qcom_qusb2
> phy_qcom_qmp_usb phy_qcom_qmp_ufs phy_qcom_qmp_pcie
> [   10.768358][  T234]  phy_qcom_qmp_pcie_msm8996 phy_qcom_qmp_combo
> or51211 or51132 ohci_platform ohci_pci ohci_hcd nxt6000 nxt200x
> nvmem_qfprom mxl692 mxl5xx mxl5007t mxl5005s mxl301rf mt352 mt312
> mt2266 mt2131 mt20xx mt2063 mt2060 msm_serial msm msi001 mn88473
> mn88472 mn88443x michael_mic mdt_loader mcp251xfd mc44s803 mb86a20s
> mb86a16 max2165 m88rs6000t m88rs2000 m88ds3103 lpass_gfm_sm8250
> lontium_lt9611uxc lontium_lt9611 lnbp22 lnbp21 lnbh29 lnbh25 lmh
> llcc_qcom lgs8gxx lgs8gl5 lgdt330x lgdt3306a lgdt3305 lg2160 l64781
> ix2505v itd1000 it913x isl6423 isl6421 isl6405 icc_rpmh icc_osm_l3
> icc_bcm_voter i2c_rk3x i2c_qup i2c_qcom_geni i2c_mux_pca954x i2c_dev
> i2c_designware_platform i2c_designware_core horus3a helene
> gpucc_sm8250 gpucc_sdm845 gpu_sched gpio_wcd934x gpio_regulator
> gcc_sm8250 gcc_sdm845 fc2580 fc0013 fc0012 fc0011 fastrpc
> extcon_usb_gpio ec100 e4000 dvb_pll ds3000 drxk drxd drx39xyj
> drm_dp_aux_bus drm_display_helper display_connector drm_kms_helper
> dispcc_sm8250
> [   10.854247][  T234]  dispcc_sdm845 dib9000 dib8000 dib7000p
> dib7000m dib3000mc dibx000_common dib3000mb dib0090 dib0070 cxd2880
> cxd2880_spi cxd2841er cxd2820r cxd2099 cx24123 cx24120 cx24117 cx24116
> cx24113 cx24110 cx22702 cx22700 cqhci cpr clk_spmi_pmic_div clk_rpmh
> qcom_rpmh cmd_db clk_qcom bcm3510 bam_dma virt_dma ax88179_178a
> au8522_dig au8522_decoder au8522_common ath11k_pci mhi ath11k_ahb
> ath11k ath10k_snoc qcom_common qcom_glink_smem qcom_glink qcom_smd
> smem ath10k_pci ath10k_core ath atbm8830 ascot2e arm_smmu qcom_scm apr
> pdr_interface qmi_helpers rpmsg_core af9033 af9013 i2c_mux a8293
> [   10.993742][  T234] CPU: 0 PID: 234 Comm: irq/178-wcd934x Tainted:
> G        W          5.19.0-mainline-14184-g69dac8e431af #1
> [   11.005126][  T234] Hardware name: Thundercomm Dragonboard 845c (DT)
> [   11.011531][  T234] pstate: 20400005 (nzCv daif +PAN -UAO -TCO -DIT
> -SSBS BTYPE=--)
> [   11.019245][  T234] pc : qcom_swrm_irq_handler+0x5d8/0x7a8 [soundwire_qcom]
> [   11.026265][  T234] lr : qcom_swrm_irq_handler+0x448/0x7a8 [soundwire_qcom]
> [   11.033281][  T234] sp : ffffffc009e73c40
> [   11.037319][  T234] x29: ffffffc009e73c40 x28: 000000000000000b
> x27: ffffff8088144bb8
> [   11.045211][  T234] x26: ffffff8088144898 x25: ffffff8088144880
> x24: ffffff8088147800
> [   11.053101][  T234] x23: ffffff8088141800 x22: 0000000000000002
> x21: 000000000000058c
> [   11.060993][  T234] x20: 000000000000000b x19: 0000000000000001
> x18: 0000000000000000
> [   11.068886][  T234] x17: 000000000005000c x16: 0000000000000000
> x15: 0000000000000001
> [   11.076778][  T234] x14: 0000000000000001 x13: 0000000000000001
> x12: 0000000000000000
> [   11.084669][  T234] x11: 0000000000000000 x10: 0000000000000b00 x9
> : ffffffc009e737d0
> [   11.092560][  T234] x8 : ffffff8088cb58e0 x7 : ffffff80fd69b400 x6
> : 0000000005c94c5d
> [   11.100450][  T234] x5 : 0002000000200000 x4 : ffffff8088cb4d80 x3
> : ffffff80881448b0
> [   11.108340][  T234] x2 : 0000000000000000 x1 : 0000000000000000 x0
> : 000000000000000b
> [   11.116229][  T234] Call trace:
> [   11.119402][  T234]  qcom_swrm_irq_handler+0x5d8/0x7a8 [soundwire_qcom]
> [   11.126066][  T234]  handle_nested_irq+0xb8/0x138
> [   11.130815][  T234]  regmap_irq_thread+0x244/0x698
> [   11.135645][  T234]  irq_thread_fn+0x2c/0x98
> [   11.139952][  T234]  irq_thread+0x17c/0x228
> [   11.144172][  T234]  kthread+0x110/0x120
> [   11.148129][  T234]  ret_from_fork+0x10/0x20
> [   11.152441][  T234] Code: 34ffd400 aa1303e0 950cd906 17fffe9d (d4207d00)
> [   11.159282][  T234] ---[ end trace 0000000000000000 ]---
> [   11.164632][  T234] Kernel panic - not syncing: BRK handler: Fatal exception
> [   11.171730][  T234] SMP: stopping secondary CPUs
> [   11.376443][  T234] Kernel Offset: 0x2fef400000 from 0xffffffc008000000
> [   11.383109][  T234] PHYS_OFFSET: 0x80000000
> [   11.387322][  T234] CPU features: 0x0000,00041021,19801c86
> [   11.392850][  T234] Memory Limit: none
>
> Regards,
> Amit Pundir
>
>
> >
> > --
> > ~Vinod



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