[PATCH v3 0/2] phy: rockchip-emmc: fixes emmc-phy power on failed with rk3399 SoCs
Kishon Vijay Abraham I
kishon at ti.com
Tue Feb 6 21:31:12 PST 2018
On Wednesday 07 February 2018 06:47 AM, Caesar Wang wrote:
> Can you help merge this in your or next tree? I'm hoping that we can land
> this somewhere.:-)
sure, I'll merge once -rc1 is tagged.
> 在 2018年01月11日 10:40, Caesar Wang 写道:
>> Hi Kishon,
>> Since the Shawn isn't available, I take over this series patches for now.
>> As the original bug had tracked on https://issuetracker.google.com/71561742.
>> In some cases, the mmc phy power on failed during booting up.
>> The log as below:
>> [ 2.375333] rockchip_emmc_phy_power: caldone timeout.
>> [ 2.377815] phy phy-ff770000.syscon:phy at f780.4: phy poweron failed --> -110
>> [ 2.489295] mmc0: mmc_select_hs400es failed, error -110
>> [ 2.489302] mmc0: error -110 whilst initialising MMC card
>> The actual emulate, the wait 5us for calpad busy trimming, that's no enough.
>> We need give the enough margin for it.
>> Verified on url =
>> This series patches can apply and bring up with kernel-next on rk3399
>> Changes in v3:
>> - As Doug commented on both upstream and gerrit.
>> Change "5, 50" to "0, 50", and the message of print.
>> - As Doug commented on https://patchwork.kernel.org/patch/10154797,
>> Change "1, 50" to "0, 50".
>> Changes in v2:
>> - print the return valut with regmap_read_poll_timeout failing.
>> - As Brian commented on https://patchwork.kernel.org/patch/10139891/,
>> changed the note and added to print error value with
>> regmap_read_poll_timeout API.
>> Shawn Lin (2):
>> phy: rockchip-emmc: retry calpad busy trimming
>> phy: rockchip-emmc: use regmap_read_poll_timeout to poll dllrdy
>> drivers/phy/rockchip/phy-rockchip-emmc.c | 60 +++++++++++++++-----------------
>> 1 file changed, 28 insertions(+), 32 deletions(-)
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