kernel/include/linux/mfd/rtsx_pci.h, branch linux-3.17.y

mfd: rtsx: Add dma transfer function

2014-07-09T13:14:58Z

rtsx driver using a single function for transfer data, dma map/unmap are placed in one fix function. We need map/unmap dma in different place(for mmc async driver), so add three function for dma map, dma transfer and dma unmap. Signed-off-by: Micky Ching Signed-off-by: Lee Jones

mmc: rtsx: Revert "mmc: rtsx: add support for pre_req and post_req"

2014-05-08T07:44:50Z

This reverts commit c42deffd5b53c9e583d83c7964854ede2f12410d. commit did use mutex_unlock() in tasklet, but mutex_unlock() can't be used in tasklet(atomic context). The driver needs to use mutex to avoid concurrency, so we can't use tasklet here, the patch need to be removed. The spinlock host->lock and pcr->lock may deadlock, one way to solve the deadlock is remove host->lock in sd_isr_done_transfer(), but if using workqueue the we can avoid using the spinlock and also avoid the problem. Signed-off-by: Micky Ching Acked-by: Ulf Hansson Signed-off-by: Lee Jones

mmc: rtsx: add support for pre_req and post_req

2014-02-22T18:34:20Z

Add support for non-blocking request, pre_req() runs dma_map_sg() and post_req() runs dma_unmap_sg(). This patch can increase card read/write speed, especially for high speed card and slow CPU(for some embedded platform). Users can get a great benefit from this patch. if CPU frequency is 800MHz, SDR104 or DDR50 card read/write speed may increase more than 15%. test results: intel i3(800MHz - 2.3GHz), SD card clock 208MHz performance mode(2.3GHz): Before: dd if=/dev/mmcblk0p1 of=/dev/null bs=64k count=1024 67108864 bytes (67 MB) copied, 1.18191 s, 56.8 MB/s After: dd if=/dev/mmcblk0p1 of=/dev/null bs=64k count=1024 67108864 bytes (67 MB) copied, 1.09276 s, 61.4 MB/s powersave mode(800MHz): Before: dd if=/dev/mmcblk0p1 of=/dev/null bs=64k count=1024 67108864 bytes (67 MB) copied, 1.29569 s, 51.8 MB/s After: dd if=/dev/mmcblk0p1 of=/dev/null bs=64k count=1024 67108864 bytes (67 MB) copied, 1.11218 s, 60.3 MB/s Signed-off-by: Micky Ching Signed-off-by: Chris Ball

mmc: rtsx: modify phase searching method for tuning

2014-02-22T18:34:18Z

The new phase searching method is more concise and easier to understand. Signed-off-by: Micky Ching Signed-off-by: Chris Ball

mfd: rtsx: Modify rts5249_optimize_phy

2013-10-23T15:20:59Z

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 Signed-off-by: Lee Jones

mfd: mmc: rtsx: Change default tx phase

2013-08-30T12:24:07Z

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 Acked-by: Lee Jones Acked-by: Chris Ball Signed-off-by: Samuel Ortiz

mfd: rtsx: Copyright modifications

2013-08-20T08:22:01Z

Update copyright date, remove author address and add Roger Tseng. Signed-off-by: Wei WANG Signed-off-by: Samuel Ortiz

mfd: rtsx: Configure to enter a deeper power-saving mode in S3

2013-08-20T08:22:01Z

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 Signed-off-by: Samuel Ortiz

mfd: rtsx: Clear hardware PFM mode in rtl8411b

2013-08-20T08:22:00Z

Clear hw_pfm_en to disable hardware PFM mode, to fix a bug that in some situation registers in 0xFDxx domain can't be accessed. Signed-off-by: Wei WANG Signed-off-by: Samuel Ortiz

mfd: rtsx: Add shutdown callback in rtsx_pci_driver

2013-08-20T08:22:00Z

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 Signed-off-by: Samuel Ortiz