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* ARM: dts: Fix dm816x pinctrl and syscon so they are children of SCMTony Lindgren2015-01-28
| | | | | | | | | | | | | | Looks like I only got half done with moving pinctrl and syscon to be children of the SCM. I've set up the FAPLL clocks that way already, but did not complete the job as I copied the syscon values from am33xx.dtsi. To make sure the syscon mapping works, I've verfified that we can set up davinci_emac mac address the same way as cpsw already does with the syscon mapping. So let's add that too. Cc: Brian Hutchinson <b.hutchman@gmail.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
* ARM: dts: omap3-gta04: Disable keypadNeilBrown2015-01-26
| | | | | | | | The twl4030 keypad is not wired up in the gta04, so mark it disabled to avoid pointless initialization. Signed-off-by: NeilBrown <neil@brown.name> Signed-off-by: Tony Lindgren <tony@atomide.com>
* ARM: dts: omap3-gta04: only power DSS when necessary.NeilBrown2015-01-26
| | | | | | | | i.e. configure vpll2 as a supply for the dss rather than being always-on. Signed-off-by: NeilBrown <neil@brown.name> Signed-off-by: Tony Lindgren <tony@atomide.com>
* ARM: dts: omap3-gta04: add gyroscopeNeilBrown2015-01-26
| | | | | Signed-off-by: NeilBrown <neil@brown.name> Signed-off-by: Tony Lindgren <tony@atomide.com>
* ARM: dts: omap3-gta04: enable power-off for wifi card.NeilBrown2015-01-26
| | | | | Signed-off-by: NeilBrown <neil@brown.name> Signed-off-by: Tony Lindgren <tony@atomide.com>
* ARM: dts: omap3-gta04: add comments about gpiosNeilBrown2015-01-26
| | | | | | | Add comments to state which GPIO is used for some interrupts. Signed-off-by: NeilBrown <neil@brown.name> Signed-off-by: Tony Lindgren <tony@atomide.com>
* ARM: dts: omap3-gta04: Add ramp value for twl4030 audioMarek Belisko2015-01-26
| | | | | Signed-off-by: Marek Belisko <marek@goldelico.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
* ARM: dts: omap3-gta04: Enable power-off using twl4030H. Nikolaus Schaller2015-01-26
| | | | | | | Enabled poweroff through PMIC on GTA04. Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
* ARM: dts: omap3-gta04: Fix a GPIO line for bma180 nodeMarek Belisko2015-01-26
| | | | | | | GPIO_115 used as irq is in &gpio4, not &gpio3. Signed-off-by: Marek Belisko <marek@goldelico.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
* ARM: dts: omap3-gta04: Enable twl audio vibra supportH. Nikolaus Schaller2015-01-26
| | | | | Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
* ARM: dts: omap3-gta04: Enable mcbps2 necessary for audioH. Nikolaus Schaller2015-01-26
| | | | | | | | mcbsp2 is used in gta04 soundcard config and by default is disabled so enable it for gta04. Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
* ARM: dts: omap3-gta04: Fix audio node malformattingH. Nikolaus Schaller2015-01-26
| | | | | | | Audio should be child of twl node. Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
* ARM: dts: omap3-gta04: Fix backup-battery charging in devicetree file.H. Nikolaus Schaller2015-01-26
| | | | | | | Fix attribute names. Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
* ARM: dts: dra72-evm: Add qspi deviceMugunthan V N2015-01-20
| | | | | | | These add device tree entry for qspi device on dra72-evm. Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
* ARM: dts: Add minimal support for dm8168-evmTony Lindgren2015-01-19
| | | | | | | | | | | | | | | | | This allows booting the device with basic functionality. Note that at least on my revision c board the DDR3 does not seem to work properly and only some of the memory can be reliably used. Also, the mainline u-boot does not seem to properly initialize the ethernet, so I've been using the old TI u-boot at: http://arago-project.org/git/projects/?p=u-boot-omap3.git;a=summary Cc: Brian Hutchinson <b.hutchman@gmail.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
* ARM: dts: Add basic clocks for dm816xTony Lindgren2015-01-19
| | | | | | | | | | | | | The clocks on dm816x are a bit different from the other omap variants. The clocks are sourced from a FAPLL (Flying Adder PLL) unlike on other omaps. Other than that, it's a similar setup to am33xx with extra muxes and dividers that can be defined as existing component clocks. Cc: Brian Hutchinson <b.hutchman@gmail.com> Cc: Paul Walmsley <paul@pwsan.com> Cc: Tero Kristo <t-kristo@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
* ARM: dts: Add basic dm816x device tree configurationTony Lindgren2015-01-19
| | | | | | | | | | | | | | | Similar to other omap variants, let's add dm816x support. Note that this is based on generated data from the TI81XX-LINUX-PSP-04.04.00.02 patches published at: http://downloads.ti.com/dsps/dsps_public_sw/psp/LinuxPSP/TI81XX_04_04/04_04_00_02/index_FDS.html I've verified the basic functionality, but have not been able to test all the devices on dm8168-evm. Cc: Brian Hutchinson <b.hutchman@gmail.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
* ARM: dts: omap3-gta04: Add handling for tv outputMarek Belisko2015-01-13
| | | | | | | | | | | Add handling for gta04 tv out chain: venc -> opa362 -> svideo Use invert-polarity in venc node because opa362 is doing polarity inversion also. Signed-off-by: Marek Belisko <marek@goldelico.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
* ARM: dts: cm-t3x: add NAND supportDmitry Lifshitz2015-01-13
| | | | | | | | | | | | | | | | | | CM-T3517, CM-T3530 and CM-T3730 features NAND storage chip connected to GPMC bus. Add GPMC DT entry into the root DT file omap3-cm-t3x.dtsi, common for all three modules. NAND timings are calculated to be safe for CM-T3x devices as it works now in non DT boot (in this case the timings are updated by U-Boot). Update GPMC ranges in boards DT files to include all connected devices. Signed-off-by: Dmitry Lifshitz <lifshitz@compulab.co.il> Acked-by: Igor Grinberg <grinberg@compulab.co.il> Acked-by: Roger Quadros <rogerq@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
* ARM: dts: am57xx-beagle-x15: Add GPIO controlled fan nodeNishanth Menon2015-01-07
| | | | | | | | | | TPS gpio now controls a 5v 500mA TL5209 regulator which may be supply a fan (such as AFB02505HHB) over J1 connector for various purposes. Provide device tree node to enable the same. Signed-off-by: Nishanth Menon <nm@ti.com> Reviewed-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
* ARM: dts: am437x-idk: add gpio-based power keyFelipe Balbi2015-01-07
| | | | | | | | | | | AM437x IDK board has a User Switch which we can program to whatever we want. Because this board doesn't have a PMIC which can give us power button presses, let's use this user switch as a gpio-keys power button. Signed-off-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
* ARM: dts: N950/N9: add twl_powerAaro Koskinen2015-01-07
| | | | | | | | Add twl_power for N950/N9. Start with the simplest configuration to just enable power off. Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi> Signed-off-by: Tony Lindgren <tony@atomide.com>
* ARM: dts: am437x-sk: add power button bindingFelipe Balbi2015-01-07
| | | | | | | | Let this board report KEY_POWER so upper layers can decide what to do when power button is pressed. Signed-off-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
* ARM: dts: add support for AM437x IDKFelipe Balbi2015-01-07
| | | | | | | | | | | | | | | | | | The AM437x Industrial Development Kit (IDK) is an application development platform targeted at industrial communication and control applications. It comes with a 3-phase motor driver, PROFINET, PROFIBUS and a few other industrial communication interfaces. The board has 1GiB of DDR3 RAM, QSPI NOR flash, a 100% discrete power design (no PMIC) and an on-board 2MP camera (not supported with Linux as of this writing). Signed-off-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
* ARM: dts: am437x-gp-evm: add VPFE device tree dataBenoit Parrot2015-01-07
| | | | | | | | | Add device tree nodes and pinmux entries for Video Processing Front End (VPFE) on am437x gp evm. Signed-off-by: Benoit Parrot <bparrot@ti.com> Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
* ARM: dts: am437x-sk-evm: add VPFE device tree dataDarren Etheridge2015-01-07
| | | | | | | | | | Add device tree nodes and pinmux entries for Video Processing Front End (VPFE) on am437x sk evm. Signed-off-by: Darren Etheridge <detheridge@ti.com> Signed-off-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
* ARM: dts: am43x-epos-evm: add VPFE device tree dataBenoit Parrot2015-01-07
| | | | | | | | | | | Add device tree nodes and pinmux entries for Video Processing Front End (VPFE) on am43x epos evm. Signed-off-by: Benoit Parrot <bparrot@ti.com> Signed-off-by: Darren Etheridge <detheridge@ti.com> Signed-off-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
* ARM: dts: am4372: add VPFE DT node entriesBenoit Parrot2015-01-07
| | | | | | | | | | | Add Video Processing Front End (VPFE) device tree nodes for AM34xx family of devices. Signed-off-by: Benoit Parrot <bparrot@ti.com> Signed-off-by: Darren Etheridge <detheridge@ti.com> Signed-off-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
* ARM: dts: DRA7X: drop id property in pcie_phyVignesh R2015-01-07
| | | | | | | | | Since phyid is no longer used by pcie driver, this field can be dropped from the DT. Signed-off-by: Vignesh R <vigneshr@ti.com> Acked-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
* ARM: dts: omap3-n900: cleanup englishPavel Machek2015-01-07
| | | | | | | This fixes english in comments and removes extra empty newline. Signed-off-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Tony Lindgren <tony@atomide.com>
* ARM: dts: am57xx-beagle-x15: Add dual ethernetFelipe Balbi2015-01-07
| | | | | | | | | | | | | | Add CPSW DT binding to beagle X15 DTS in order to get ethernet working with this board. Note that we're also adding sleep state which will place all pins in mux mode 15 - which means "driver off" - thus conserving power. Signed-off-by: Nishanth Menon <nm@ti.com> Signed-off-by: Sekhar Nori <nsekhar@ti.com> Signed-off-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
* ARM: dts: am437x-sk: remove DSS pullsFelipe Balbi2015-01-07
| | | | | | | | The DSS data lines don't need pulls, it's best to remove them to guarantee signal integrity. Signed-off-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
* ARM: dts: am437x-sk: remove internal i2c pullupsFelipe Balbi2015-01-07
| | | | | | | | | AM437x Starter Kit already has discrete pullups for all I2C buses, so we can (and should) remove internal pulls. Signed-off-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
* ARM: dts: am437x-sk: add explicit pinmux for both USB instancesFelipe Balbi2015-01-07
| | | | | | | | | | This patch just makes USB[01]_DRVVBUS signal explicitly muxed. Note that board already has a discrete pulldown, so we're not adding any pulls here. Signed-off-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
* ARM: dts: am437x-sk: remove ethernet pullsFelipe Balbi2015-01-07
| | | | | | | | | AM437x Starter Kit already has discrete pulls where they are necessary. It's safe (and actually better) to remove internal pulls. Signed-off-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
* ARM: dts: am437x-sk: add explicit MMC0 pinmuxFelipe Balbi2015-01-07
| | | | | | | | | | By don't relying on implicit MMC0 pulldown we make sure that pins are marked busy and even if we have a broken bootloader, MMC0 will remain functional. Signed-off-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
* ARM: dts: am437x-sk: remove internal pulls from QSPIFelipe Balbi2015-01-07
| | | | | | | | QSPI doesn't need any pullups of any sort, let's remove them. Signed-off-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
* ARM: dts: am437x-sk-evm: Hook dcdc2 as the cpu0-supplyDave Gerlach2015-01-07
| | | | | | | | | Hook dcdc2 as the cpu0-supply. Signed-off-by: Dave Gerlach <d-gerlach@ti.com> Tested-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
* Linux 3.19-rc1Linus Torvalds2014-12-20
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* Merge tag 'for-linus' of ↵Linus Torvalds2014-12-20
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/borntraeger/linux Pull ACCESS_ONCE cleanup preparation from Christian Borntraeger: "kernel: Provide READ_ONCE and ASSIGN_ONCE As discussed on LKML http://marc.info/?i=54611D86.4040306%40de.ibm.com ACCESS_ONCE might fail with specific compilers for non-scalar accesses. Here is a set of patches to tackle that problem. The first patch introduce READ_ONCE and ASSIGN_ONCE. If the data structure is larger than the machine word size memcpy is used and a warning is emitted. The next patches fix up several in-tree users of ACCESS_ONCE on non-scalar types. This does not yet contain a patch that forces ACCESS_ONCE to work only on scalar types. This is targetted for the next merge window as Linux next already contains new offenders regarding ACCESS_ONCE vs. non-scalar types" * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/borntraeger/linux: s390/kvm: REPLACE barrier fixup with READ_ONCE arm/spinlock: Replace ACCESS_ONCE with READ_ONCE arm64/spinlock: Replace ACCESS_ONCE READ_ONCE mips/gup: Replace ACCESS_ONCE with READ_ONCE x86/gup: Replace ACCESS_ONCE with READ_ONCE x86/spinlock: Replace ACCESS_ONCE with READ_ONCE mm: replace ACCESS_ONCE with READ_ONCE or barriers kernel: Provide READ_ONCE and ASSIGN_ONCE
| * s390/kvm: REPLACE barrier fixup with READ_ONCEChristian Borntraeger2014-12-18
| | | | | | | | | | | | | | | | | | | | | | | | | | ACCESS_ONCE does not work reliably on non-scalar types. For example gcc 4.6 and 4.7 might remove the volatile tag for such accesses during the SRA (scalar replacement of aggregates) step (https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58145) Commit 1365039d0cb3 ("KVM: s390: Fix ipte locking") replace ACCESS_ONCE with barriers. Lets use READ_ONCE instead. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
| * arm/spinlock: Replace ACCESS_ONCE with READ_ONCEChristian Borntraeger2014-12-18
| | | | | | | | | | | | | | | | | | | | | | | | ACCESS_ONCE does not work reliably on non-scalar types. For example gcc 4.6 and 4.7 might remove the volatile tag for such accesses during the SRA (scalar replacement of aggregates) step (https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58145) Change the spinlock code to replace ACCESS_ONCE with READ_ONCE. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
| * arm64/spinlock: Replace ACCESS_ONCE READ_ONCEChristian Borntraeger2014-12-18
| | | | | | | | | | | | | | | | | | | | | | | | ACCESS_ONCE does not work reliably on non-scalar types. For example gcc 4.6 and 4.7 might remove the volatile tag for such accesses during the SRA (scalar replacement of aggregates) step (https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58145) Change the spinlock code to replace ACCESS_ONCE with READ_ONCE. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
| * mips/gup: Replace ACCESS_ONCE with READ_ONCEChristian Borntraeger2014-12-18
| | | | | | | | | | | | | | | | | | | | | | | | ACCESS_ONCE does not work reliably on non-scalar types. For example gcc 4.6 and 4.7 might remove the volatile tag for such accesses during the SRA (scalar replacement of aggregates) step https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58145) Change the gup code to replace ACCESS_ONCE with READ_ONCE. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
| * x86/gup: Replace ACCESS_ONCE with READ_ONCEChristian Borntraeger2014-12-18
| | | | | | | | | | | | | | | | | | | | | | | | ACCESS_ONCE does not work reliably on non-scalar types. For example gcc 4.6 and 4.7 might remove the volatile tag for such accesses during the SRA (scalar replacement of aggregates) step (https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58145) Change the gup code to replace ACCESS_ONCE with READ_ONCE. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
| * x86/spinlock: Replace ACCESS_ONCE with READ_ONCEChristian Borntraeger2014-12-18
| | | | | | | | | | | | | | | | | | | | | | | | ACCESS_ONCE does not work reliably on non-scalar types. For example gcc 4.6 and 4.7 might remove the volatile tag for such accesses during the SRA (scalar replacement of aggregates) step (https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58145) Change the spinlock code to replace ACCESS_ONCE with READ_ONCE. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
| * mm: replace ACCESS_ONCE with READ_ONCE or barriersChristian Borntraeger2014-12-18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ACCESS_ONCE does not work reliably on non-scalar types. For example gcc 4.6 and 4.7 might remove the volatile tag for such accesses during the SRA (scalar replacement of aggregates) step (https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58145) Let's change the code to access the page table elements with READ_ONCE that does implicit scalar accesses for the gup code. mm_find_pmd is tricky, because m68k and sparc(32bit) define pmd_t as array of longs. This code requires just that the pmd_present and pmd_trans_huge check are done on the same value, so a barrier is sufficent. A similar case is in handle_pte_fault. On ppc44x the word size is 32 bit, but a pte is 64 bit. A barrier is ok as well. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Cc: linux-mm@kvack.org Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
| * kernel: Provide READ_ONCE and ASSIGN_ONCEChristian Borntraeger2014-12-18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | ACCESS_ONCE does not work reliably on non-scalar types. For example gcc 4.6 and 4.7 might remove the volatile tag for such accesses during the SRA (scalar replacement of aggregates) step https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58145) Let's provide READ_ONCE/ASSIGN_ONCE that will do all accesses via scalar types as suggested by Linus Torvalds. Accesses larger than the machines word size cannot be guaranteed to be atomic. These macros will use memcpy and emit a build warning. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
* | Merge tag 'clk-for-linus-3.19' of ↵Linus Torvalds2014-12-20
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.linaro.org/people/mike.turquette/linux Pull clk framework updates from Mike Turquette: "This is much later than usual due to several last minute bugs that had to be addressed. As usual the majority of changes are new drivers and modifications to existing drivers. The core recieved many fixes along with the groundwork for several large changes coming in the future which will better parition clock providers from clock consumers" * tag 'clk-for-linus-3.19' of git://git.linaro.org/people/mike.turquette/linux: (86 commits) clk: samsung: Fix Exynos 5420 pinctrl setup and clock disable failure due to domain being gated ARM: OMAP3: clock: fix boot breakage in legacy mode ARM: OMAP2+: clock: fix DPLL code to use new determine rate APIs clk: Really fix deadlock with mmap_sem clk: mmp: fix sparse non static symbol warning clk: Change clk_ops->determine_rate to return a clk_hw as the best parent clk: change clk_debugfs_add_file to take a struct clk_hw clk: Don't expose __clk_get_accuracy clk: Don't try to use a struct clk* after it could have been freed clk: Remove unused function __clk_get_prepare_count clk: samsung: Fix double add of syscore ops after driver rebind clk: samsung: exynos4: set parent of sclk_hdmiphy to hdmi clk: samsung: exynos4415: Fix build with PM_SLEEP disabled clk: samsung: remove unnecessary inclusion of header files from clk.h clk: samsung: remove unnecessary CONFIG_OF from clk.c clk: samsung: Spelling s/bwtween/between/ clk: rockchip: Add support for the mmc clock phases using the framework clk: rockchip: add bindings for the mmc clocks clk: rockchip: rk3288 export i2s0_clkout for use in DT clk: rockchip: use clock ID for DMC (memory controller) on rk3288 ...
| * | clk: samsung: Fix Exynos 5420 pinctrl setup and clock disable failure due to ↵Krzysztof Kozlowski2014-12-17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | domain being gated Audio subsystem clocks are located in separate block. On Exynos 5420 if clock for this block (from main clock domain) 'mau_epll' is gated then any read or write to audss registers will block. This kind of boot hang was observed on Arndale Octa and Peach Pi/Pit after introducing runtime PM to pl330 DMA driver. After that commit the 'mau_epll' was gated, because the "amba" clock was disabled and there were no more users of mau_epll. The system hang on one of steps: 1. Disabling unused clocks from audss block. 2. During audss GPIO setup (just before probing i2s0 because samsung_pinmux_setup() tried to access memory from audss block which was gated. Add a workaround for this by enabling the 'mau_epll' clock in probe. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Acked-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Tested-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Tested-by: Kevin Hilman <khilman@linaro.org> Signed-off-by: Michael Turquette <mturquette@linaro.org>
generated by cgit v1.2.2 (git 2.25.0) at 2025-08-13 22:43:22 -0400