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2018-12-14ASoC: audio-graph-card: tidyup convert_rate/channel methodKuninori Morimoto
Current audio-graph-card is handling "convert_rate/channel" by many ways. But, it is not useful and readable. We want to do is that allow having it everywere. This patch support it. It will be overwrote if lower node has it. sound { convert-channels = <xxx>; // initial }; codec { audio-graph-card,convert-channels = <xxx>; // overwrite ports { convert_channels = <xxx>; // overwrite port { convert_channels = <xxx>; // overwrite endpoint { convert_channels = <xxx>; // overwrite }; }; }; }; Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-12-14ASoC: audio-graph-card: tidyup mclk-fs methodKuninori Morimoto
Current audio-graph-card is handling "mclk-fs" by many way. But, it is not useful and readable. We want to do is that allow having mclk-fs everywere. This patch support it. It will be overwrote if lower node has it. sound { mclk-fs = <xxx>; // initial }; codec { ports { mclk-fs = <xxx>; // overwrite port { mclk-fs = <xxx>; // overwrite endpoint { mclk-fs = <xxx>; // overwrite }; }; }; }; Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-12-14ASoC: audio-graph-card: merge audio-graph-scu-cardKuninori Morimoto
audio-graph-card and audio-graph-scu-card are very similar driver, but the former is supporting normal sound card, the latter is supporting DPCM sound card. We couldn't use normal sound and DPCM sound in same sound card by audio-graph-card. This patch merges both sound card into it. Now we can use both feature on same driver. audio-grap-card is now supporting .compatible = "audio-graph-scu-card". Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Tested-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-12-14ASoC: audio-graph-card: merge audio-graph-scu-card on DocKuninori Morimoto
audio-graph-card and audio-graph-scu-card are very similar driver, but the former is supporting normal sound card, the latter is supporting DPCM sound card. We couldn't use normal sound and DPCM sound in same sound card by audio-graph-card. This patch merges both feature into it on Documentation. Now we can use both feature on same driver. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-12-14ASoC: simple-card-utils: fixup asoc_simple_card_get_dai_id() ID methodKuninori Morimoto
commit b6f3fc005a2c8 ("ASoC: simple-card-utils: fixup asoc_simple_card_get_dai_id() counting") fixuped getting DAI ID method. It will get DAI ID from OF graph "port", but, we want to consider about "endpoint", too. And, we also want to keep compatibility. This patch fixup it as if (driver has specified DAI ID) use it as DAI ID else if (OF graph endpoint has reg) use it as DAI ID else if (OF graph port has reg) use it as DAI ID else use endpoint count as DAI ID Fixes: commit b6f3fc005a2c8 ("ASoC: simple-card-utils: fixup asoc_simple_card_get_dai_id() counting") Reported-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Tested-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-12-14regulator: mcp16502: add support for suspendAndrei.Stefanescu@microchip.com
This patch adds support for entering/resuming suspend states. It does this by setting the LPM pin of the PMIC. When suspending the PMIC will enter the Low-power mode when the LPM pin will be set to high. If the suspend target state is suspend-to-mem, the PMIC will transition to Hibernate mode, otherwise, if it is standby, it will remain in Low-power mode. Signed-off-by: Andrei Stefanescu <andrei.stefanescu@microchip.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-12-14KVM: nVMX: Move vmcs12 code to dedicated filesSean Christopherson
vmcs12 is the KVM-defined struct used to track a nested VMCS, e.g. a VMCS created by L1 for L2. Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-12-14KVM: VMX: Move VMCS definitions to dedicated fileSean Christopherson
This isn't intended to be a pure reflection of hardware, e.g. struct loaded_vmcs and struct vmcs_host_state are KVM-defined constructs. Similar to capabilities.h, this is a standalone file to avoid circular dependencies between yet-to-be-created vmx.h and nested.h files. Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-12-14KVM: VMX: Expose various module param vars via capabilities.hSean Christopherson
Expose the variables associated with various module params that are needed by the nested VMX code. There is no ulterior logic for what variables are/aren't exposed, this is purely "what's needed by the nested code". Note that @nested is intentionally not exposed. Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-12-14KVM: VMX: Move capabilities structs and helpers to dedicated fileSean Christopherson
Defining a separate capabilities.h as opposed to putting this code in e.g. vmx.h avoids circular dependencies between (the yet-to-be-added) vmx.h and nested.h. The aforementioned circular dependencies are why struct nested_vmx_msrs also resides in capabilities instead of e.g. nested.h. Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-12-14KVM: VMX: Pass vmx_capability struct to setup_vmcs_config()Sean Christopherson
...instead of referencing the global struct. This will allow moving setup_vmcs_config() to a separate file that may not have access to the global variable. Modify nested_vmx_setup_ctls_msrs() appropriately since vmx_capability.ept may not be accurate when called by vmx_check_processor_compat(). No functional change intended. Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-12-14KVM: VMX: Properly handle dynamic VM Entry/Exit controlsSean Christopherson
EFER and PERF_GLOBAL_CTRL MSRs have dedicated VM Entry/Exit controls that KVM dynamically toggles based on whether or not the guest's value for each MSRs differs from the host. Handle the dynamic behavior by adding a helper that clears the dynamic bits so the bits aren't set when initializing the VMCS field outside of the dynamic toggling flow. This makes the handling consistent with similar behavior for other controls, e.g. pin, exec and sec_exec. More importantly, it eliminates two global bools that are stealthily modified by setup_vmcs_config. Opportunistically clean up a comment and print related to errata for IA32_PERF_GLOBAL_CTRL. Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-12-14KVM: VMX: Move caching of MSR_IA32_XSS to hardware_setup()Sean Christopherson
MSR_IA32_XSS has no relation to the VMCS whatsoever, it doesn't belong in setup_vmcs_config() and its reference to host_xss prevents moving setup_vmcs_config() to a dedicated file. Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-12-14KVM: VMX: Drop the "vmx" prefix from vmx_evmcs.hSean Christopherson
VMX specific files now reside in a dedicated subdirectory, i.e. the file name prefix is redundant. Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-12-14KVM: VMX: rename vmx_shadow_fields.h to vmcs_shadow_fields.hSean Christopherson
VMX specific files now reside in a dedicated subdirectory. Drop the "vmx" prefix, which is redundant, and add a "vmcs" prefix to clarify that the file is referring to VMCS shadow fields. Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-12-14KVM: VMX: Move VMX specific files to a "vmx" subdirectorySean Christopherson
...to prepare for shattering vmx.c into multiple files without having to prepend "vmx_" to all new files. Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-12-14KVM: x86: Add requisite includes to hyperv.hSean Christopherson
Until this point vmx.c has been the only consumer and included the file after many others. Prepare for multiple consumers, i.e. the shattering of vmx.c Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-12-14KVM: x86: Add requisite includes to kvm_cache_regs.hSean Christopherson
Until this point vmx.c has been the only consumer and included the file after many others. Prepare for multiple consumers, i.e. the shattering of vmx.c Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-12-14KVM: VMX: Alphabetize the includes in vmx.cSean Christopherson
...to prepare for the creation of a "vmx" subdirectory that will contain a variety of headers. Clean things up now to avoid making a bigger mess in the future. Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-12-14KVM: nVMX: Allocate and configure VM{READ,WRITE} bitmaps iff enable_shadow_vmcsSean Christopherson
...and make enable_shadow_vmcs depend on nested. Aside from the obvious memory savings, this will allow moving the relevant code out of vmx.c in the future, e.g. to a nested specific file. Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-12-14KVM: nVMX: Free the VMREAD/VMWRITE bitmaps if alloc_kvm_area() failsSean Christopherson
Fixes: 34a1cd60d17f ("kvm: x86: vmx: move some vmx setting from vmx_init() to hardware_setup()") Cc: stable@vger.kernel.org Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-12-14kvm: introduce manual dirty log reprotectPaolo Bonzini
There are two problems with KVM_GET_DIRTY_LOG. First, and less important, it can take kvm->mmu_lock for an extended period of time. Second, its user can actually see many false positives in some cases. The latter is due to a benign race like this: 1. KVM_GET_DIRTY_LOG returns a set of dirty pages and write protects them. 2. The guest modifies the pages, causing them to be marked ditry. 3. Userspace actually copies the pages. 4. KVM_GET_DIRTY_LOG returns those pages as dirty again, even though they were not written to since (3). This is especially a problem for large guests, where the time between (1) and (3) can be substantial. This patch introduces a new capability which, when enabled, makes KVM_GET_DIRTY_LOG not write-protect the pages it returns. Instead, userspace has to explicitly clear the dirty log bits just before using the content of the page. The new KVM_CLEAR_DIRTY_LOG ioctl can also operate on a 64-page granularity rather than requiring to sync a full memslot; this way, the mmu_lock is taken for small amounts of time, and only a small amount of time will pass between write protection of pages and the sending of their content. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-12-14kvm: rename last argument to kvm_get_dirty_log_protectPaolo Bonzini
When manual dirty log reprotect will be enabled, kvm_get_dirty_log_protect's pointer argument will always be false on exit, because no TLB flush is needed until the manual re-protection operation. Rename it from "is_dirty" to "flush", which more accurately tells the caller what they have to do with it. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-12-14kvm: make KVM_CAP_ENABLE_CAP_VM architecture agnosticPaolo Bonzini
The first such capability to be handled in virt/kvm/ will be manual dirty page reprotection. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-12-14Merge branch 'khdr_fix' of ↵Paolo Bonzini
git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest into HEAD Merge topic branch from Shuah.
2018-12-14iwlwifi: mvm: don't check if a pointer is set if it can't be unsetEmmanuel Grumbach
We used to have many versions of statistics notification coming from the firmware. In one of the cleanup patches, we forgot to clean the code that checks if data->general is set. Since it is always set, remove the check. Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2018-12-14iwlwifi: pcie: set cmd_len in the correct placeSara Sharon
command len is set too early in the code, since when building AMSDU, the size changes. This causes the byte count table to have the wrong size. Fixes: a0ec0169b7a9 ("iwlwifi: support new tx api") Signed-off-by: Sara Sharon <sara.sharon@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2018-12-14iwlwifi: mvm: radiotap: remove UL_DL bit in HE TRIG_BASEDShaul Triebitz
UL_DL is irrelevant to HE TRIG_BASED PPDU. Signed-off-by: Shaul Triebitz <shaul.triebitz@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2018-12-14iwlwifi: mvm: add L-SIG length to radiotapShaul Triebitz
We may have the L-SIG length depending on the phy_data info type; add it to radiotap when we do. Move getting the phy_data out one layer up and the info type into it so we can use this data more generically. We need to call the iwl_mvm_rx_he() function for other reasons as well, so can't just combine all of that into something like iwl_mvm_parse_phy_data(). Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Shaul Triebitz <shaul.triebitz@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2018-12-14iwlwifi: mvm: change PHY data RX for HE radiotapShaul Triebitz
The firmware changed the PHY data API, so follow suit. Some data is now available even for HT/VHT frames, so the info type in the metadata was changed. This change isn't backwards compatible, but 1) the firmware with the old API was never released; 2) the only overlap in the info type field is from the old type of TB to the new of HT, so this basically just means that with older FW and newer driver the data will be considered missing. While at it, remove the extra code to set the LTF syms corresponding to the streams and use the data from the device instead - we don't really need this in any case other than when we have it from the device. As the new API gives use the spatial reuse 1-4 fields for trigger-based PPDUs, also expose that to radiotap. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Shaul Triebitz <shaul.triebitz@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2018-12-14iwlwifi: pcie: fix erroneous printSara Sharon
When removing the driver, the following flow can happen: 1. host command is in progress, for example at index 68. 2. RX interrupt is received with the response. 3. Before it is processed, the remove flow kicks in, and calls iwl_pcie_txq_unmap. The function cleans all DMA, and promotes the read pointer to 69. 4. RX thread proceeds with the processing, and is calling iwl_pcie_cmdq_reclaim, which will print this error: iwl_pcie_cmdq_reclaim: Read index for DMA queue txq id (0), index 4 is out of range [0-256] 69 69. Detect this situation, and avoid the print. Change it to warning while at it, to make such issues more noticeable in the future. Signed-off-by: Sara Sharon <sara.sharon@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2018-12-14iwlwifi: mvm: force TCM re-evaluation on TCM resumeAvraham Stern
When traffic load is not low or low latency is active, TCM schedules re-evaluation work so in case traffic stops TCM will detect that traffic load has become low or that low latency is no longer active. However, if TCM is paused when the re-evaluation work runs, it does not re-evaluate and the re-evaluation work is no longer scheduled. As a result, TCM will not indicate that low latency is no longer active or that traffic load is low when traffic stops. Fix this by forcing TCM re-evaluation when TCM is resumed in case low latency is active or traffic load is not low. Signed-off-by: Avraham Stern <avraham.stern@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2018-12-14iwlwifi: remove all unnecessary occurrences of nvm_calib_verLuca Coelho
Now that nvm_calib_ver is not checked in opmodes other than dvm, we can remove it from all irrelevant configurations. Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2018-12-14iwlwifi: move iwl_nvm_check_version() into dvmLuca Coelho
This function is only half-used by mvm (i.e. only the nvm_version part matters, since the calibration version is irrelevant), so it's pointless to export it from iwlwifi. If mvm uses this function, it has the additional complexity of setting the calib version to a bogus value on all cfg structs. To avoid this, move the function to dvm and make a simple comparison of the nvm_version in mvm instead. Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2018-12-14iwlwifi: remove useless NVM_HW_SECTION_NUM_FAMILY_* macrosLuca Coelho
These macros are useless because each one of them is used only once and the element they are assigned to is already pretty clear about what they mean, "nvm_hw_section_num". Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2018-12-14iwlwifi: don't define OTP_LOW_IMAGE_SIZE per family, but per sizeLuca Coelho
Using OTP_LOW_IMAGE_SIZE_FAMILY_8000/9000/22000 only obfuscates the actual values, since these 3 are the same. Redefine the values per size so it's easier to understand and compare the different configurations. Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2018-12-14iwlwifi: mvm: activate apply pointsSara Sharon
Call the previously introduced apply points entry point when reaching an apply point. Signed-off-by: Sara Sharon <sara.sharon@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2018-12-14iwlwifi: add support for triggering ini triggersSara Sharon
Add support for ini triggers. Signed-off-by: Sara Sharon <sara.sharon@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2018-12-14iwlwifi: dbg: dump data according to the new ini TLVsSara Sharon
When ini TLVs are loaded, dump data according to the stored configuration. Signed-off-by: Sara Sharon <sara.sharon@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2018-12-14iwlwifi: move common 9000 cfg parameters to common macroLuca Coelho
The ht_params, nvm_ver, nvm_calib_ver and max_ht_ampdu_exponent elements in 9000 devices are always the same. Move them to the common macro. Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
2018-12-14Merge branch 'opp/genpd/propagation' into opp/linux-nextViresh Kumar
2018-12-14PM / Domains: Propagate performance state updatesViresh Kumar
Currently a genpd only handles the performance state requirements from the devices under its control. This commit extends that to also handle the performance state requirement(s) put on the master genpd by its sub-domains. There is a separate value required for each master that the genpd has and so a new field is added to the struct gpd_link (link->performance_state), which represents the link between a genpd and its master. The struct gpd_link also got another field prev_performance_state, which is used by genpd core as a temporary variable during transitions. On a call to dev_pm_genpd_set_performance_state(), the genpd core first updates the performance state of the masters of the device's genpd and then updates the performance state of the genpd. The masters do the same and propagate performance state updates to their masters before updating their own. The performance state transition from genpd to its master is done with the help of dev_pm_opp_xlate_performance_state(), which looks at the OPP tables of both the domains to translate the state. Tested-by: Rajendra Nayak <rnayak@codeaurora.org> Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2018-12-14PM / Domains: Factorize dev_pm_genpd_set_performance_state()Viresh Kumar
Separate out _genpd_set_performance_state() and _genpd_reeval_performance_state() from dev_pm_genpd_set_performance_state() to handle performance state update related stuff. This will be used by a later commit. Tested-by: Rajendra Nayak <rnayak@codeaurora.org> Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2018-12-14PM / Domains: Save OPP table pointer in genpdViresh Kumar
dev_pm_genpd_set_performance_state() will be required to call dev_pm_opp_xlate_performance_state() going forward to translate from performance state of a sub-domain to performance state of its master. And dev_pm_opp_xlate_performance_state() needs pointers to the OPP tables of both genpd and its master. Lets fetch and save them while the OPP tables are added. Fetching the OPP tables should never fail as we just added the OPP tables and so add a WARN_ON() for such a bug instead of full error paths. Tested-by: Rajendra Nayak <rnayak@codeaurora.org> Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2018-12-14OPP: Don't return 0 on error from of_get_required_opp_performance_state()Viresh Kumar
of_get_required_opp_performance_state() returns 0 on errors currently and a positive performance state otherwise. Since 0 is a valid performance state (representing off), it would be better if this routine returns negative values on error. That will also make it behave similar to dev_pm_opp_xlate_performance_state(), which also returns performance states and returns negative values on error. Change the return type of the function to "int" in order to return negative values. This doesn't have any users for now and so no other part of the kernel will be impacted with this change. Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2018-12-14OPP: Add dev_pm_opp_xlate_performance_state() helperViresh Kumar
dev_pm_genpd_set_performance_state() needs to handle performance state propagation going forward. Currently this routine only gets the required performance state of the device's genpd as an argument, but it doesn't know how to translate that to master genpd(s) of the device's genpd. Introduce a new helper dev_pm_opp_xlate_performance_state() which will be used to translate from performance state of a device (or genpd sub-domain) to another device (or master genpd). Normally the src_table (of genpd sub-domain) will have the "required_opps" property set to point to one of the OPPs in the dst_table (of master genpd), but in some cases the genpd and its master have one to one mapping of performance states and so none of them have the "required-opps" property set. Return the performance state of the src_table as it is in such cases. Tested-by: Rajendra Nayak <rnayak@codeaurora.org> Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2018-12-14OPP: Improve _find_table_of_opp_np()Viresh Kumar
Make _find_table_of_opp_np() more efficient by using of_get_parent() to find the parent OPP table node. Tested-by: Rajendra Nayak <rnayak@codeaurora.org> Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2018-12-14media: staging/intel-ipu3: Add Intel IPU3 meta data uAPIYong Zhi
These meta formats are used on Intel IPU3 ImgU video queues to carry 3A statistics and ISP pipeline parameters. V4L2_META_FMT_IPU3_3A V4L2_META_FMT_IPU3_PARAMS Signed-off-by: Yong Zhi <yong.zhi@intel.com> Signed-off-by: Chao C Li <chao.c.li@intel.com> Signed-off-by: Rajmohan Mani <rajmohan.mani@intel.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-12-14PM / Domains: Make genpd performance states orthogonal to the idlestatesUlf Hansson
It's quite questionable whether genpd internally should care about if the corresponding PM domain for a device is powered on, as to allow setting a new performance state for it. The assumptions creates an unnecessary limitation at this point, for both consumers and providers, but more importantly it also makes the code more complicated. Therefore, let's simplify the code to allow setting a performance state, by invoking the ->set_performance_state() callback, no matter whether the PM domain is powered on or off. Do note, this change means genpd providers needs to restore the performance state themselves during power on, via the ->power_on() callback. Moreover, they may also need to check that the PM domain is powered on, from their ->set_performance_state() callback, before deciding to update the state. Tested-by: Rajendra Nayak <rnayak@codeaurora.org> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2018-12-14media: staging/intel-ipu3: Add imgu top level pci device driverYong Zhi
This patch adds support for the Intel IPU v3 as found on Skylake and Kaby Lake SoCs. The driver glues v4l2, css(camera sub system) and other pieces together to perform its functions, it also loads the IPU3 firmware binary as part of its initialization. Signed-off-by: Yong Zhi <yong.zhi@intel.com> Signed-off-by: Tomasz Figa <tfiga@chromium.org> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>