Commit Graph

18 Commits

Author SHA1 Message Date
Rui Feng 8275b77a15 mfd: rts5249: Add support for RTS5250S power saving
Enable power saving for RTS5250S as following steps:
1.Set 0xFE58 to enable clock power management.
2.Check cfg space whether support L1SS or not.
3.If support L1SS, set 0xFF03 to free clkreq.
4.When entering idle status, enable aspm
  and set parameters for L1SS and LTR.
5.Wnen entering run status, disable aspm
  and set parameters for L1SS and LTR.
If entering L1SS mode successfully,
electric current will be below 2mA.

Signed-off-by: Rui Feng <rui_feng@realsil.com.cn>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2017-10-13 10:42:59 +01:00
Javier Martinez Canillas b158b69a37 mfd: rtsx: Simplify function return logic
The invoked functions already return zero on success or a negative
errno code so there is no need to open code the logic in the caller.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2015-10-30 17:19:44 +00:00
Micky Ching 0523b8f414 mfd: rtsx: Using pcr_dbg replace dev_dbg
pcr_dbg is a wrapper of dev_dbg, which can save some code,
and help to enable/disable debug message static.

Signed-off-by: Micky Ching <micky_ching@realsil.com.cn>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2015-03-03 16:41:21 +00:00
Micky Ching 41bc233473 mfd: rtsx: Add support for rts525A
Add support for new chip rts525A.

Signed-off-by: Micky Ching <micky_ching@realsil.com.cn>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2015-03-03 16:41:21 +00:00
Micky Ching 663c425f2c mfd: rtsx: Add support for rts524A
add support for new chip rts524A.

Signed-off-by: Micky Ching <micky_ching@realsil.com.cn>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2015-03-03 16:41:20 +00:00
Micky Ching 19f3bd548f mfd: rtsx: Remove LCTLR defination
To enable/disable ASPM we should find LINK CONTROL register
in PCI config space. All old chip use 0x80 address, but new
chip may use another address, so we using pci_find_capability()
to get LINK CONTROL address.

rtsx_gops.c was removed, we consider to put some common operations
to this file, but the actual thing is, only a group of chips
are in common ops1, and another group of chips in common ops2,
it is hard to decide put which ops into generic ops file.

Signed-off-by: Micky Ching <micky_ching@realsil.com.cn>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2015-03-03 16:41:19 +00:00
Micky Ching b038538104 mfd: rtsx: Update phy register
Update some phy register name and value for rts5249,
the updated value makes chip more stable on some platform.

Signed-off-by: Micky Ching <micky_ching@realsil.com.cn>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2015-03-03 16:41:19 +00:00
Micky Ching e89f231826 mfd: rtsx: Update driving settings
update card drive settings, This setting can be used for rts5249
rts524A and rts525A.

Signed-off-by: Micky Ching <micky_ching@realsil.com.cn>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2015-03-03 16:41:18 +00:00
Micky Ching 9e33ce79f8 mfd: rtsx: Update PETXCFG address
PETXCFG is defined at 0xFF03, the old 0xFE49 not used any more.

Signed-off-by: Micky Ching <micky_ching@realsil.com.cn>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2015-03-03 16:41:17 +00:00
Micky Ching 5cb5d9616a mfd: rtsx: Fix PM suspend for 5227 & 5249
Fix rts5227&5249 failed send buffer cmd after suspend,
PM_CTRL3 should reset before send any buffer cmd after suspend.
Otherwise, buffer cmd will failed, this will lead resume fail.

Signed-off-by: Micky Ching <micky_ching@realsil.com.cn>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2014-11-25 16:18:48 +00:00
Wei WANG 26b818511c mfd: rtsx: Modify rts5249_optimize_phy
In some platforms, specially Thinkpad series, rts5249 won't be
initialized properly. So we need adjust some phy parameters to
improve the compatibility issue.

It is a little different between simulation and real chip. We have
no idea about which configuration is better before tape-out. We set
default settings according to simulation, but need to tune these
parameters after getting the real chip.

I can't explain every change in detail here. The below information is
just a rough description:

PHY_REG_REV: Disable internal clkreq_tx, enable rx_pwst
PHY_BPCR: No change, just turn the magic number to macro definitions
PHY_PCR: Change OOBS sensitivity, from 60mV to 90mV
PHY_RCR2: Control charge-pump current automatically
PHY_FLD4: Use TX cmu reference clock
PHY_RDR: Change RXDSEL from 30nF to 1.9nF
PHY_RCR1: Change the duration between adp_st and asserting cp_en from
0.32 us to 0.64us
PHY_FLD3: Adjust internal timers
PHY_TUNE: Fine tune the regulator12 output voltage

Signed-off-by: Wei WANG <wei_wang@realsil.com.cn>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2013-10-23 16:20:59 +01:00
Wei WANG 84d72f9cc2 mfd: mmc: rtsx: Change default tx phase
The default phase can meet most cards' requirement, but it is not the
optimal one. In some extreme situation, the rx phase point produced by
the following tuning process will drift quite a distance.
Before tuning UHS card, this patch will set a more proper initial tx
phase point, which is calculated from statistic data, and can achieve
a much better tx signal quality.

Signed-off-by: Wei WANG <wei_wang@realsil.com.cn>
Acked-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Chris Ball <cjb@laptop.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-08-30 14:24:07 +02:00
Wei WANG 09fd86780b mfd: rtsx: Copyright modifications
Update copyright date, remove author address and add Roger Tseng.

Signed-off-by: Wei WANG <wei_wang@realsil.com.cn>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-08-20 10:22:01 +02:00
Wei WANG eb891c65c9 mfd: rtsx: Configure to enter a deeper power-saving mode in S3
Set a bit to enable rts5227 and rts5249 to enter a deeper internal
power-saving mode in S3, and recover it after resuming.

Signed-off-by: Wei WANG <wei_wang@realsil.com.cn>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-08-20 10:22:01 +02:00
Wei WANG 7140812c4a mfd: rtsx: Move some actions from rtsx_pci_init_hw to individual extra_init_hw
These actions are individual for each reader model, so should be put in
extra_init_hw instead of rtsx_pci_init_hw.

Signed-off-by: Wei WANG <wei_wang@realsil.com.cn>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-08-20 10:22:00 +02:00
Wei WANG 5947c167d1 mfd: rtsx: Add shutdown callback in rtsx_pci_driver
Some actions to clear power state should be handled in .shutdown
callback in rtsx_pci_driver. This patch adopts the following measures to
catch this goal:
1. Add a function rtsx_pci_power_off to abstract the common ops in
.shutdown and .suspend
2. Add pcr->ops->force_power_down to fulfill the individual action for
each reader model

Signed-off-by: Wei WANG <wei_wang@realsil.com.cn>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-08-20 10:22:00 +02:00
Wei WANG 773ccdfd9c mfd: rtsx: Read vendor setting from config space
Normally OEMs will set vendor setting to the config space of Realtek
card reader in BIOS stage. This patch reads the setting at the first,
and configure the internal registers according to it, to improve card
reader's compatibility condition.

Signed-off-by: Wei WANG <wei_wang@realsil.com.cn>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-08-20 10:22:00 +02:00
Wei WANG 4c4b8c105a mfd: rtsx: Support RTS5249
RTS5249 supports SD UHS-II interface.

In order to support SD UHS-II,the definitions of some internal
registers of RTS5249 have to be modified and are different from its
predecessors. So we need this patch to ensure RTS5249 can work, even
SD/MMC stack doesn't support UHS-II interface.

Signed-off-by: Wei WANG <wei_wang@realsil.com.cn>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-04-19 18:29:18 +02:00