Hi,
After 918f4cbd4340 ("mmc: sdhci: restore behavior when setting VDD via
external regulator") On Trats2 board I see warnings for invalid VDD
value (2.8V):
[ 3.119656] ------------[ cut here ]------------
[ 3.119666] WARNING: CPU: 3 PID: 90 at
../drivers/mmc/host/sdhci.c:1234 sdhci_do_set_ios+0x4cc/0x5e0
[ 3.119669] mmc0: Invalid vdd 0x10
[ 3.119673] Modules linked in:
[ 3.119679] CPU: 3 PID: 90 Comm: kworker/3:1 Tainted: G W
4.5.0-next-20160324 #23
[ 3.119681] Hardware name: SAMSUNG EXYNOS (Flattened Device Tree)
[ 3.119690] Workqueue: events_freezable mmc_rescan
[ 3.119708] [<c010e0ac>] (unwind_backtrace) from [<c010ae10>]
(show_stack+0x10/0x14)
[ 3.119719] [<c010ae10>] (show_stack) from [<c0323260>]
(dump_stack+0x88/0x9c)
[ 3.119728] [<c0323260>] (dump_stack) from [<c011b754>] (__warn+0xe8/0x100)
[ 3.119734] [<c011b754>] (__warn) from [<c011b7a4>]
(warn_slowpath_fmt+0x38/0x48)
[ 3.119740] [<c011b7a4>] (warn_slowpath_fmt) from [<c0527d28>]
(sdhci_do_set_ios+0x4cc/0x5e0)
[ 3.119748] [<c0527d28>] (sdhci_do_set_ios) from [<c0528018>]
(sdhci_runtime_resume_host+0x60/0x114)
[ 3.119758] [<c0528018>] (sdhci_runtime_resume_host) from
[<c0402570>] (__rpm_callback+0x2c/0x60)
[ 3.119767] [<c0402570>] (__rpm_callback) from [<c04025c4>]
(rpm_callback+0x20/0x80)
[ 3.119773] [<c04025c4>] (rpm_callback) from [<c04034b8>]
(rpm_resume+0x36c/0x558)
[ 3.119780] [<c04034b8>] (rpm_resume) from [<c04036f0>]
(__pm_runtime_resume+0x4c/0x64)
[ 3.119788] [<c04036f0>] (__pm_runtime_resume) from [<c0512728>]
(__mmc_claim_host+0x170/0x1b0)
[ 3.119795] [<c0512728>] (__mmc_claim_host) from [<c0514e2c>]
(mmc_rescan+0x54/0x348)
[ 3.119807] [<c0514e2c>] (mmc_rescan) from [<c0130dac>]
(process_one_work+0x120/0x3f4)
[ 3.119815] [<c0130dac>] (process_one_work) from [<c01310b8>]
(worker_thread+0x38/0x554)
[ 3.119823] [<c01310b8>] (worker_thread) from [<c01365a4>]
(kthread+0xdc/0xf4)
[ 3.119831] [<c01365a4>] (kthread) from [<c0107878>]
(ret_from_fork+0x14/0x3c)
[ 3.119834] ---[ end trace a22d652aa3276886 ]---
The device seems to work correctly but I suppose the patch still has
an effect - the mmc_regulator_set_ocr() is not called.
Any ideas for fixing this?
The board is Trats2 (Exynos4412).
Best regards,
Krzysztof
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