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path: root/drivers/mfd/rts5209.c
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2015-10-30mfd: rtsx: Simplify function return logicJavier Martinez Canillas
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>
2015-03-03mfd: rtsx: Using pcr_dbg replace dev_dbgMicky Ching
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>
2013-08-30mfd: mmc: rtsx: Change default tx phaseWei WANG
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>
2013-08-20mfd: rtsx: Copyright modificationsWei WANG
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>
2013-08-20mfd: rtsx: Configure to enter a deeper power-saving mode in S3Wei WANG
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>
2013-08-20mfd: rtsx: Move some actions from rtsx_pci_init_hw to individual extra_init_hwWei WANG
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>
2013-08-20mfd: rtsx: Add shutdown callback in rtsx_pci_driverWei WANG
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>
2013-08-20mfd: rtsx: Read vendor setting from config spaceWei WANG
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>
2013-02-14mfd: rtsx: Implement driving adjustment to device-dependent callbacksRoger Tseng
Implement different ways of selecting driving capability(a necessary adjustment along with voltage change). It was origionally in device-independent mmc/host/rtsx_pci_sdmmc.c. Moving it here to support devices which may have a different way of adjustment. Signed-off-by: Roger Tseng <rogerable@realtek.com> Reviewed-by: Wei WANG <wei_wang@realsil.com.cn> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-01-27mfd: rtsx: Add clock divider hookWei WANG
Add callback function conv_clk_and_div_n to convert between SSC clock and its divider N. For rtl8411, the formula to calculate SSC clock divider N is different with the other card reader models. Signed-off-by: Wei WANG <wei_wang@realsil.com.cn> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2013-01-27mfd: rtsx: Add output voltage switch hookWei WANG
Different card reader has different method to switch output voltage, add this callback to let the card reader implement its individual switch function. This is needed as rtl8411 has a specific switch output voltage procedure. Signed-off-by: Wei WANG <wei_wang@realsil.com.cn> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
2012-11-15drivers/mfd: Add realtek pcie card reader driverWei WANG
Realtek PCI-E card reader driver adapts requests from upper-level sdmmc/memstick layer to the real physical card reader. Signed-off-by: Wei WANG <wei_wang@realsil.com.cn> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Tested-by: Borislav Petkov <bp@alien8.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>