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path: root/drivers/mfd/rtsx_pcr.c
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* mfd: rtsx: Add support for RTL8411BRoger Tseng2013-06-111-0/+5
| | | | | | | | Adding support of model RTL8411B. Since the model is similar to RTL8411, differences are implemented in rtl8411.c. Signed-off-by: Roger Tseng <rogerable@realtek.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* mfd: rtsx: Support RTS5249Wei WANG2013-04-191-0/+5
| | | | | | | | | | | | 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>
* MFD: rtsx_pcr: Fix probe fail pathJiri Slaby2013-04-051-2/+4
| | | | | | | | | | | | | | | | | | | | | When rtsx_pci_acquire_irq fails in rtsx_pci_probe, we forget to disable an MSI (if we enabled it). This results in this warning on the next attempt to load the module: WARNING: at drivers/pci/msi.c:834 pci_enable_msi_block+0x2a4/0x2b0() Hardware name: HP EliteBook 840 G1 Modules linked in: rtsx_pci(+) ... Pid: 4056, comm: modprobe Tainted: G I 3.8.0-9405-gd895cb1-1-vanilla #1 Call Trace: [<ffffffff81045c6a>] warn_slowpath_common+0x7a/0xc0 [<ffffffff81045cc5>] warn_slowpath_null+0x15/0x20 [<ffffffff81302544>] pci_enable_msi_block+0x2a4/0x2b0 [<ffffffffa05e335a>] rtsx_pci_probe+0x55a/0x720 [rtsx_pci] ... So properly disable MSI in that case. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* mfd: convert to idr_alloc()Tejun Heo2013-02-271-7/+6
| | | | | | | | | Convert to the much saner new idr interface. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* mfd: rtsx: Fix issue that booting OS with SD card insertedWei WANG2013-02-141-0/+30
| | | | | | | | | | | | | | | | | | Realtek card reader supports both SD and MS card. According to the settings of rtsx MFD driver, SD host will be probed before MS host. If we boot/reboot Linux with SD card inserted, the resetting flow of SD card will succeed, and the following resetting flow of MS is sure to fail. Then MS upper-level driver will ask rtsx driver to turn power off. This request leads to the result that the following SD commands fail and SD card can't be accessed again. In this commit, Realtek's SD and MS host driver will check whether the card that upper driver requesting is the one existing in the slot. If not, Realtek's host driver will refuse the operation to make sure the exlusive accessing at the same time. Signed-off-by: Wei WANG <wei_wang@realsil.com.cn> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* mfd: rtsx: Support RTS5227Roger Tseng2013-02-141-0/+5
| | | | | | | | Support new model RTS5227. 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>
* mfd: rtsx: Optimize card detect flowWei WANG2013-02-141-12/+19
| | | | | | | | | | | 1. Schedule card detect work at the end of the ISR 2. Callback function ops->cd_deglitch may delay for a period of time. It is not proper to call this callback when local irq disabled. 3. Card detect flow can't be executed in parallel with other card reader operations, so it's better to be protected by mutex. Signed-off-by: Wei WANG <wei_wang@realsil.com.cn> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* mfd: rtsx: Use macros to replace some variablesWei WANG2013-02-141-9/+4
| | | | | | | | | | | In function rtsx_pci_switch_clock, some variables, such as min_n, max_n, and max_div, are not necessary. And those assigned values look very obscure for others. It's more proper to use macro definitions here to replace these variables. Signed-off-by: Wei WANG <wei_wang@realsil.com.cn> Acked-by: Borislav Petkov <bp@alien8.de> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* mfd: rtsx: Fix checkpatch warningWei WANG2013-02-141-13/+13
| | | | | | | | | | | WARNING: Avoid CamelCase: <min_N> + u8 N, min_N, max_N, clk_divider; WARNING: Avoid CamelCase: <max_N> + u8 N, min_N, max_N, clk_divider; Signed-off-by: Wei WANG <wei_wang@realsil.com.cn> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* mfd: rtsx: Declare that the DMA address limitation is 32bit explicitlyWei WANG2013-02-141-0/+4
| | | | | | | | Realtek PCIe card reader only supports 32bit DMA. This declaration can improve the readability. Signed-off-by: Wei WANG <wei_wang@realsil.com.cn> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* mfd: rtsx: Remove redundant codeWei WANG2013-02-141-1/+0
| | | | | | | | In function rtsx_pci_add_sg_tbl, the statement "ptr++" is useless. Signed-off-by: Wei WANG <wei_wang@realsil.com.cn> Acked-by: Borislav Petkov <bp@alien8.de> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* mfd: rtsx: Fix oops when rtsx_pci_sdmmc is not probedWei WANG2013-01-271-2/+2
| | | | | | | | | | If rtsx_pci_sdmmc is not probed, function pointer pcr->slots[].card_event will point to NULL, and thus rtsx_pci_card_detect will reference a NULL pointer. Check card_event pointer before referencing it can avoid kernel panic. Signed-off-by: Wei WANG <wei_wang@realsil.com.cn> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* mfd: rtsx: Add clock divider hookWei WANG2013-01-271-2/+12
| | | | | | | | | | 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>
* mfd: rtsx: Add output voltage switch hookWei WANG2013-01-271-0/+9
| | | | | | | | | | 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>
* Drivers: mfd: remove __dev* attributes.Greg Kroah-Hartman2013-01-031-4/+4
| | | | | | | | | | | | | | | CONFIG_HOTPLUG is going away as an option. As a result, the __dev* markings need to be removed. This change removes the use of __devinit, __devexit_p, __devinitdata, __devinitconst, and __devexit from these drivers. Based on patches originally written by Bill Pemberton, but redone by me in order to handle some of the coding style issues better, by hand. Cc: Bill Pemberton <wfp5p@virginia.edu> Cc: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* mfd: Explicitely include slab.h to rtsxSamuel Ortiz2012-11-091-0/+1
| | | | | | | | | | | | This fixes the following build error on some architectures (parisc at least): drivers/mfd/rtsx_pcr.c: In function 'rtsx_pci_init_chip': drivers/mfd/rtsx_pcr.c:985:2: error: implicit declaration of function 'kcalloc' [-Werror=implicit-function-declaration] drivers/mfd/rtsx_pcr.c:985:13: warning: assignment makes pointer from integer without a cast [enabled by default] Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
* mfd: Add realtek pcie card reader driverWei WANG2012-11-081-0/+1251
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: Samuel Ortiz <sameo@linux.intel.com>
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