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path: root/drivers/scsi/ufs/ufshcd-pci.c
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2013-08-26[SCSI] ufs: don't disable_irq() if the IRQ can be shared among devicesAkinobu Mita
When removing the UFS driver, disable_irq() is called and the IRQ is not enabled again. Unfortunately, the IRQ is requested with IRQF_SHARED and it can be shared among several devices. So disabling the IRQ in this way is just breaking other devices which are sharing the IRQ. Signed-off-by: Akinobu Mita <mita@fixstars.com> Signed-off-by: Santosh Y <santoshsy@gmail.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-08-26[SCSI] ufshcd-pci: release ioremapped region during removing driverAkinobu Mita
Before commit 2953f850c3b80bdca004967c83733365d8aa0aa2 ("[SCSI] ufs: use devres functions for ufshcd"), UFSHCI register was ioremapped by each glue-driver (ufshcd-pltfrm and ufshcd-pci) during probing and it was iounmapped by core-driver during removing driver. The commit converted ufshcd-pltfrm to use devres functions, but it didn't convert ufshcd-pci. Therefore, the change causes ufshcd-pci driver not to iounmap UFSHCI register region during removing driver. This fixes it by converting ufshcd-pci to use devres functions. Signed-off-by: Akinobu Mita <mita@fixstars.com> Signed-off-by: Santosh Y <santoshsy@gmail.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-08-26[SCSI] ufs: Add runtime PM support for UFS host controller driverSujit Reddy Thumma
Add runtime PM helpers to suspend/resume UFS controller at runtime. Enable runtime PM by default for pci and platform drivers as the initialized hardware can suspend if it is not used after bootup. Signed-off-by: Sujit Reddy Thumma <sthumma@codeaurora.org> Signed-off-by: Santosh Y <santoshsy@gmail.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-06-28[SCSI] ufs: use devres functions for ufshcdSeungwon Jeon
This patch replaces normal calls for resource allocation with devm_*() derivative functions. It makes resource freeing simpler. Signed-off-by: Seungwon Jeon <tgih.jun@samsung.com> Signed-off-by: Santosh Y <santoshsy@gmail.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
2013-02-25[SCSI] ufs: Separate PCI code into glue driverVinayak Holikatti
This patch separates PCI code from ufshcd.c and makes it as a core driver module and adds a new file ufshcd-pci.c as PCI glue driver. [jejb: strip __devinit and devexit_p()] Reviewed-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Namjae Jeon <linkinjeon@gmail.com> Reviewed-by: Subhash Jadavani <subhashj@codeaurora.org> Tested-by: Maya Erez <merez@codeaurora.org> Signed-off-by: Vinayak Holikatti <vinholikatti@gmail.com> Signed-off-by: Santosh Yaraganavi <santoshsy@gmail.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>