[PATCH RFC 0/2] Internal voltage control for platform drivers

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Certain SDHC controllers may require that voltage switching happen after
sepcial conditions. Added a QUIRK for such controllers to use.

For SDHCI-MSM controllers, power irq is a signal from controller to SW
that it is ready for voltage switch. So added support to register
voltage regulators from the msm driver and use them.
Voltage switching from core layer is causing CRC/cmd timeout errors in
some chipsets.

Tested on: sdm845, db410c
Requies patch series:"[PATCH V3 0/4] Changes for SDCC5 version"

Vijay Viswanath (2):
  mmc: sdhci: Allow platform controlled voltage switching
  mmc: sdhci-msm: Use internal voltage control

 drivers/mmc/host/sdhci-msm.c | 99 ++++++++++++++++++++++++++++++++++++++------
 drivers/mmc/host/sdhci.c     | 20 ++++++---
 drivers/mmc/host/sdhci.h     |  2 +
 3 files changed, 104 insertions(+), 17 deletions(-)

-- 
 Qualcomm India Private Limited, on behalf of Qualcomm Innovation Center, Inc. 
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, a Linux Foundation Collaborative Project.

--
To unsubscribe from this list: send the line "unsubscribe devicetree" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html



[Index of Archives]     [Device Tree Compilter]     [Device Tree Spec]     [Linux Driver Backports]     [Video for Linux]     [Linux USB Devel]     [Linux PCI Devel]     [Linux Audio Users]     [Linux Kernel]     [Linux SCSI]     [XFree86]     [Yosemite Backpacking]


  Powered by Linux