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

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

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: Add clock divider hook

2013-01-27T00:30:20Z

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 Signed-off-by: Samuel Ortiz

drivers/mfd: Add realtek pcie card reader driver

2012-11-16T01:30:14Z

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 Reviewed-by: Arnd Bergmann Tested-by: Borislav Petkov Signed-off-by: Greg Kroah-Hartman