[GIT PULL] SCSI fixes for 4.2-rc7

A couple of major (hang and deadlock) fixes with fortunately fairly rare triggering conditions. The PM oops is only really triggered by people using enclosure services (rare) and the fnic driver is mostly used in enterprise environments. The patch is available here:

[PATCH v3 6/8] scsi: ufs: make the UFS variant a platform device

This change turns the UFS variant (SCSI_UFS_QCOM) into a UFS a platform device. In order to do so a few additional changes are required: 1. The ufshcd-pltfrm is no longer serves as a platform device. Now it only serves as a group of platform APIs such as PM APIs (runtime suspend/resume,

[PATCH v3 1/8] phy: qcom-ufs: fix build error when the component is built as a module

Export the following functions in order to avoid build errors when the component PHY_QCOM_UFS is compiled as a module: ERROR: ufs_qcom_phy_disable_ref_clk [drivers/scsi/ufs/ufs-qcom.ko] undefined! ERROR: ufs_qcom_phy_enable_ref_clk [drivers/scsi/ufs/ufs-qcom.ko] undefined! ERROR:

[PATCH v2 0/8] Fix error message and present UFS variant

V3: fixes a few minor issues. V2: fixes a few issues of unnecessary EXPORT_SYMBOL, types of parameters in routine definition, build errors in case CONFIG_PM is not defined and some other minor fixes. Yaniv Gardi (8): phy: qcom-ufs: fix build error when the component is built as a module

[PATCH v3 4/8] add ufshcd_get_variant ufshcd_set_variant

Signed-off-by: Yaniv Gardi yga...@codeaurora.org --- drivers/scsi/ufs/ufs-qcom.c | 34 +- drivers/scsi/ufs/ufshcd.h | 21 + 2 files changed, 38 insertions(+), 17 deletions(-) diff --git a/drivers/scsi/ufs/ufs-qcom.c

[PATCH v3 8/8] scsi: ufs-qcom: add QUniPro hardware support and power optimizations

New revisions of UFS host controller supports the new UniPro hardware controller (referred as QUniPro). This patch adds the support to enable this new UniPro controller hardware. This change also adds power optimization for bus scaling feature, as well as support for HS-G3 power mode.

[PATCH v3 7/8] scsi: ufs-qcom: add debug prints for test bus

Adds support for configuring and reading the test bus and debug registers. This change also adds another vops in order to print the debug registers. Signed-off-by: Yaniv Gardi yga...@codeaurora.org --- drivers/scsi/ufs/ufs-qcom.c | 165 +++-

[PATCH v3 2/8] scsi: ufs-qcom: fix compilation warning if compiled as a module

This change fixes a compilation warning that happens if SCSI_UFS_QCOM is compiled as a module. Also this patch fixes an error happens when insmod the module: ufs_qcom: module license 'unspecified' taints kernel. Signed-off-by: Yaniv Gardi yga...@codeaurora.org --- drivers/scsi/ufs/ufs-qcom.c |

[PATCH v3 5/8] scsi: ufs: creates wrapper functions for vops

In order to simplify the code a set of wrapper functions is created to test and call each of the variant operations. Signed-off-by: Yaniv Gardi yga...@codeaurora.org --- drivers/scsi/ufs/ufs-qcom.c | 1 - drivers/scsi/ufs/ufshcd.c | 104 +---

[PATCH v3 3/8] scsi: ufs-qcom: update configuration option of SCSI_UFS_QCOM component

This change is required in order to be able to build the component as a module. Signed-off-by: Yaniv Gardi yga...@codeaurora.org --- drivers/scsi/ufs/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/ufs/Kconfig b/drivers/scsi/ufs/Kconfig index

[RFC v6 03/25] m68k/atari: Replace nvram_{read,write}_byte with arch_nvram_ops

By implementing an arch_nvram_ops struct, any platform can re-use the drivers/char/nvram module without needing any arch-specific code in that module. Atari does so here. Atari has one user of nvram_check_checksum() whereas the other platforms (i.e. x86 and ARM platforms) have none at all.

[RFC v6 01/25] scsi/atari_scsi: Dont select CONFIG_NVRAM

On powerpc, setting CONFIG_NVRAM=n builds a kernel with no NVRAM support. Setting CONFIG_NVRAM=m enables the /dev/nvram misc device module without enabling NVRAM support in drivers. Setting CONFIG_NVRAM=y enables the misc device (built-in) and also enables NVRAM support in drivers. m68k shares

Re: [PATCH v1 14/15] scsi: ufs: commit descriptors before setting the doorbell

On Aug 21, 2015 3:10 PM, Yaniv Gardi yga...@codeaurora.org wrote: Add a write memory barrier to make sure descriptors prepared are actually written to memory before ringing the doorbell. We have also added the write memory barrier after ringing the doorbell register so that controller sees

Re: [PATCH v2 6/8] scsi: ufs: make the UFS variant a platform device

O n Aug 20, 2015 6:59 AM, Yaniv Gardi yga...@codeaurora.org wrote: This change turns the UFS variant (SCSI_UFS_QCOM) into a UFS a platform device. In order to do so a few additional changes are required: 1. The ufshcd-pltfrm is no longer serves as a platform device. Now it only serves as

Re: [PATCH v1 15/15] scsi: ufs: add wrapper for retrying sending query attribute

On Aug 21, 2015 3:10 PM, Yaniv Gardi yga...@codeaurora.org wrote: Sometimes queries from the device might return a failure so it is recommended to retry sending the query, before giving up. This change adds a wrapper to retry sending a query attribute, in cases where we need to wait longer,

Re: [PATCH 01/10] phy: exynos-ufs: add UFS PHY driver for EXYNOS SoC

Hi Alim, On Fri, Aug 21, 2015 at 12:27 PM, Alim Akhtar alim.akh...@samsung.com wrote: From: Seungwon Jeon tgih@samsung.com This patch introduces Exynos UFS PHY driver. This driver supports to deal with phy calibration and power control according to UFS host driver's behavior.