Re: [PATCH] soc: qcom: update config dependencies for QCOM_RPMPD

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On 22-01-19, 16:05, Rajendra Nayak wrote:
> Seeing this now during remove
> 
> [   34.008216] ------------[ cut here ]------------
> [   34.012894] Device 'mss' does not have a release() function, it is broken and must be fixed. See Docum.
> [   34.024143] WARNING: CPU: 6 PID: 1600 at drivers/base/core.c:922 device_release+0x84/0x98
> [   34.032379] Modules linked in:
> [   34.035477] CPU: 6 PID: 1600 Comm: sh Not tainted 5.0.0-rc1-00012-g0513915837c5-dirty #34
> [   34.043724] Hardware name: Qualcomm Technologies, Inc. SDM845 MTP (DT)
> [   34.050305] pstate: 60400005 (nZCv daif +PAN -UAO)
> [   34.055141] pc : device_release+0x84/0x98
> [   34.059186] lr : device_release+0x84/0x98
> [   34.063229] sp : ffff0000183c3b40
> [   34.066574] x29: ffff0000183c3b40 x28: ffff800174b55100
> [   34.071930] x27: 0000000000000000 x26: 0000000000000000
> [   34.077285] x25: 0000000056000000 x24: 0000000000000015
> [   34.082640] x23: dead000000000100 x22: dead000000000200
> [   34.087997] x21: 0000000000000000 x20: ffff0000112f9780
> [   34.093352] x19: ffff0000112f9770 x18: ffff0000111dd6c8
> [   34.098719] x17: 0000000000000000 x16: 0000000000000000
> [   34.104072] x15: ffff0000983c3867 x14: 6966206562207473
> [   34.109438] x13: 756d20646e61206e x12: 656b6f7262207369
> [   34.114791] x11: 207469202c6e6f69 x10: 74636e7566202928
> [   34.120147] x9 : 657361656c657220 x8 : 742e7463656a626f
> [   34.125514] x7 : 6b2f6e6f69746174 x6 : 0000000000000149
> [   34.130867] x5 : 0000000000000020 x4 : 000000000001c200
> [   34.136223] x3 : 00000000ffffffff x2 : ffff0000111f5828
> [   34.141579] x1 : bc1d8ed5415ab200 x0 : 0000000000000000
> [   34.146936] Call trace:
> [   34.149413]  device_release+0x84/0x98
> [   34.153116]  kobject_put+0x98/0xe8
> [   34.156551]  put_device+0x14/0x28
> [   34.159899]  genpd_remove+0x108/0x190
> [   34.163598]  of_genpd_remove_last+0xbc/0xf0
> [   34.167828]  rpmhpd_remove+0x2c/0x48
> [   34.171436]  platform_drv_remove+0x24/0x68
> [   34.175574]  device_release_driver_internal+0x184/0x218
> [   34.180845]  device_release_driver+0x14/0x20
> [   34.185152]  unbind_store+0xec/0x138
> [   34.188760]  drv_attr_store+0x20/0x30
> [   34.192465]  sysfs_kf_write+0x48/0x58
> [   34.196163]  kernfs_fop_write+0xcc/0x1c8
> [   34.200129]  __vfs_write+0x34/0x170
> [   34.203654]  vfs_write+0xa8/0x1b8
> [   34.206998]  ksys_write+0x5c/0xc8
> [   34.210345]  __arm64_sys_write+0x14/0x20
> [   34.214318]  el0_svc_common+0xb4/0x118
> [   34.218107]  el0_svc_handler+0x2c/0x80
> [   34.221899]  el0_svc+0x8/0xc
> [   34.224804] ---[ end trace 9cee1458d0b6c175 ]---
> [   34.229490] ------------[ cut here ]------------

This shall fix it:

diff --git a/drivers/base/power/domain.c b/drivers/base/power/domain.c
index 500de1dee967..8a44b1f356d0 100644
--- a/drivers/base/power/domain.c
+++ b/drivers/base/power/domain.c
@@ -1711,6 +1711,15 @@ static void genpd_lock_init(struct generic_pm_domain *genpd)
        }
 }
 
+static void genpd_device_release(struct device *dev)
+{
+}
+
+struct device_type genpd_device_type = {
+       .name =         "genpd_device",
+       .release =      genpd_device_release,
+};
+
 /**
  * pm_genpd_init - Initialize a generic I/O PM domain object.
  * @genpd: PM domain object to initialize.
@@ -1770,6 +1779,7 @@ int pm_genpd_init(struct generic_pm_domain *genpd,
                pr_warn("%s : no governor for states\n", genpd->name);
        }
 
+       genpd->dev.type = &genpd_device_type;
        device_initialize(&genpd->dev);
        dev_set_name(&genpd->dev, "%s", genpd->name);
 

@Ulf: You fine with this ?

-- 
viresh



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