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[ Upstream commit 1af468ebe45591651ec3bafc2e9ddc6fdef70ae0 ]
The R in PEK_DBR stands for rising, so it should be mapped to
AXP288_IRQ_POKP where the last P stands for positive edge.
Likewise PEK_DBF should be mapped to the falling edge, aka the
_N_egative edge, so it should be mapped to AXP288_IRQ_POKN.
This fixes the inverted powerbutton status reporting by the
axp20x-pek driver.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit 7e9c40c63933a643908d686bd89dfc2315e8c70a ]
In the current boot, clients making use of the AB8500 sysctrl
may be probed before the ab8500-sysctrl driver. This gives them
-EINVAL, but should rather give -EPROBE_DEFER.
Before this, the abx500 clock driver didn't probe properly,
and as a result the codec driver in turn using the clocks did
not probe properly. After this patch, everything probes
properly.
Also add OF compatible-string probing. This driver is all
device tree, so let's just make a drive-by-fix of that as
well.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 8b8a84c54aff4256d592dc18346c65ecf6811b45 upstream.
Commit 16fa3dc75c22 ("mfd: omap-usb-tll: HOST TLL platform driver")
added support for USB TLL, but uses OMAP_TLL_CHANNEL_CONF_ULPINOBITSTUFF
bit the wrong way. The comments in the code are correct, but the inverted
use of OMAP_TLL_CHANNEL_CONF_ULPINOBITSTUFF causes the register to be
enabled instead of disabled unlike what the comments say.
Without this change the Wrigley 3G LTE modem on droid 4 EHCI bus can
be only pinged few times before it stops responding.
Fixes: 16fa3dc75c22 ("mfd: omap-usb-tll: HOST TLL platform driver")
Signed-off-by: Tony Lindgren <tony@atomide.com>
Acked-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 40a50f8b307de8d08f3fa37c312fc16a7dd233e5 upstream.
TPS65217 IRQ domain should be removed and initialised as NULL when the
module is unloaded for the next use. When tps65217.ko is loaded again,
it causes the page fault. This patch fixes the error below.
root@arm:~# lsmod | grep "tps"
tps65217_charger 3538 0
tps65218_pwrbutton 2974 0
tps65217 6710 1 tps65217_charger
root@arm:~# modprobe -r tps65217_charger
root@arm:~# modprobe tps65217.ko
[ 71.990277] Unable to handle kernel paging request at virtual address bf055944
[ 71.998063] pgd = dd3a4000
[ 72.000904] [bf055944] *pgd=9e6f7811, *pte=00000000, *ppte=00000000
[ 72.007567] Internal error: Oops: 7 [#1] SMP ARM
[ 72.012404] Modules linked in: tps65217(+) evdev musb_dsps musb_hdrc udc_core tps65218_pwrbutton usbcore phy_am335]
[ 72.055700] CPU: 0 PID: 243 Comm: modprobe Not tainted 4.9.0-rc5-next-20161114 #3
[ 72.063531] Hardware name: Generic AM33XX (Flattened Device Tree)
[ 72.069899] task: de714380 task.stack: de7e6000
[ 72.074655] PC is at irq_find_matching_fwspec+0x88/0x100
[ 72.080211] LR is at 0xde7e79d8
[ 72.083496] pc : [<c01a5d88>] lr : [<de7e79d8>] psr: 200e0013
[ 72.083496] sp : de7e7a78 ip : 00000000 fp : dd138a68
[ 72.095506] r10: c0ca04f8 r9 : 00000018 r8 : de7e7ab8
[ 72.100973] r7 : 00000001 r6 : c0c4517c r5 : df963f68 r4 : de321980
[ 72.107797] r3 : bf055940 r2 : de714380 r1 : 00000000 r0 : 00000000
[ 72.114633] Flags: nzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none
[ 72.122084] Control: 10c5387d Table: 9d3a4019 DAC: 00000051
[ 72.128097] Process modprobe (pid: 243, stack limit = 0xde7e6218)
[ 72.134489] Stack: (0xde7e7a78 to 0xde7e8000)
[ 72.139060] 7a60: df963f68 de7e7ab8
[ 72.147643] 7a80: 00000000 dd0e1000 dd491e20 c01a6ea0 600e0013 c01a5dc0 dd138a68 c0c45138
[ 72.156216] 7aa0: df963f68 00000000 df963f68 dd0e1010 00000000 c01a71a4 df963f68 00000001
[ 72.164800] 7ac0: 00000002 de7e7ac0 c80048b8 dd0adf00 df963f68 c0c4517c 00000000 de7e7b50
[ 72.173369] 7ae0: 00000018 c0ca04f8 dd138a68 c01a5dc0 df963f68 dd0e1010 00000000 dd0e1000
[ 72.181942] 7b00: dd491e20 c0653a70 df963f58 00000001 00000002 00000000 00000000 00000000
[ 72.190522] 7b20: 600e0093 c0cbf8f0 c0c0512c c0193674 00000001 00000080 00000000 c0554984
[ 72.199096] 7b40: 00000000 00000000 800e0013 c0553858 df963f68 00000000 00000000 00000000
[ 72.207674] 7b60: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 72.216239] 7b80: 00000000 00000000 00000000 00000000 00000000 00000000 dd0e1000 c0544d24
[ 72.224816] 7ba0: dd491e10 dd0e1010 dd16e800 bf1d517c bf1d5620 dd0e1010 c1497ed4 bf1d5620
[ 72.233398] 7bc0: dd0e1010 fffffdfb bf1d5620 bf1d5620 00000000 c054537c c0545330 dd0e1010
[ 72.241967] 7be0: c1497ed4 00000000 bf1d5620 c05433ac 00000000 00000000 de7e7c28 c0543570
[ 72.250537] 7c00: 00000001 c1497e90 00000000 c0541884 de080cd4 dd44b7d4 dd0e1010 dd0e1010
[ 72.259109] 7c20: dd0e1044 c05430c8 dd0e1010 00000001 dd0e1010 dd0e1018 dd0e1010 c0c9e328
[ 72.267676] 7c40: de5d4020 c0542760 dd0e1018 dd0e1010 00000000 c0540ba8 dd138a40 c048dec4
[ 72.276253] 7c60: 00000000 dd0e1000 00000001 dd0e1000 dd0e1010 dd0e1000 bf233de0 dd138a40
[ 72.284829] 7c80: dd0e1010 c05450a0 000000bf 00000000 dd138a60 00000001 dd0e1000 c0571240
[ 72.293398] 7ca0: 00000000 dd1ce9c0 00000040 dd1ce9cc bf233de0 00000003 de5d4020 ffffffff
[ 72.301969] 7cc0: 00000004 dd0adf00 00000000 c0571408 00000000 00000000 dd0adf00 de5d4020
[ 72.310543] 7ce0: c057146c dd1ce9c0 bf233d14 de5d4020 de7fb3d0 00000004 bf233d14 ffffffff
[ 72.319120] 7d00: 00000018 dd49bf30 c01cedc0 c05714d0 00000000 00000000 dd0adf00 de322810
[ 72.327692] 7d20: de322810 00000000 dd033000 000000f0 00000001 bf2333fc 00000000 00000000
[ 72.336269] 7d40: dd0adf00 de5d4020 000000b6 bf233e40 de5d4020 bf233968 de5d4004 de5d4000
[ 72.344848] 7d60: bf233314 c06148ac de5d4020 c1497ed4 00000000 bf233e40 00000000 c05433ac
[ 72.353422] 7d80: 00000000 de5d4020 bf233e40 de5d4054 00000000 bf236000 00000000 c0543538
[ 72.362002] 7da0: 00000000 bf233e40 c0543484 c05417e4 de1442a4 de5d04d0 bf233e40 de321300
[ 72.370582] 7dc0: c0caa5a4 c05429fc bf233be0 bf233e40 c0cbfa44 bf233e40 c0cbfa44 dd2f7740
[ 72.379148] 7de0: bf233f00 c05442f0 bf233e8c bf233e24 c0cbfa44 c0615ae0 00000000 bf233f00
[ 72.387718] 7e00: c0cbfa44 c010186c 200f0013 c0191650 de714380 00000000 600f0013 00000040
[ 72.396286] 7e20: dd2f7740 c018f1ac 00000001 c0c8356c 024000c0 c01a8854 c0c56e0e c028225c
[ 72.404863] 7e40: dd2f7740 c0191984 de714380 dd2f7740 00000001 bf233f00 bf233f00 c0cbfa44
[ 72.413440] 7e60: dd2f7740 bf233f00 00000001 dd49bf08 dd49bf30 c0230998 00000001 c0c8356c
[ 72.421997] 7e80: c0c4c536 c0cbfa44 c0c0512c c01d2070 bf233f0c 00007fff bf233f00 c01cf5b8
[ 72.430570] 7ea0: 00000000 c1475134 c01cee34 bf23411c bf233f48 bf234054 bf234150 00000000
[ 72.439144] 7ec0: 024002c2 de7fbf40 0009bc20 c02776ac ff800000 00000000 00000000 bf233670
[ 72.447723] 7ee0: 00000004 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 72.456298] 7f00: 00000000 00000000 00000000 00000000 c01d2590 0000aa41 00000000 00000000
[ 72.464862] 7f20: 000b2549 e12c3a41 00000051 de7e6000 0009bc20 c01d2630 00000530 e12b9000
[ 72.473438] 7f40: 0000aa41 e12c1434 e12c1211 e12c336c 00001150 00001620 00000000 00000000
[ 72.482003] 7f60: 00000000 000010fc 00000035 00000036 0000001d 0000001a 00000017 00000000
[ 72.490564] 7f80: de7e6000 3ba39a00 0009b008 0009b718 00000080 c0107704 de7e6000 00000000
[ 72.499141] 7fa0: 0009f609 c0107560 3ba39a00 0009b008 000a7b08 0000aa41 0009bc20 0000aa41
[ 72.507717] 7fc0: 3ba39a00 0009b008 0009b718 00000080 00000001 00000008 0009ab14 0009f609
[ 72.516290] 7fe0: bea31ab8 bea31aa8 0001e5eb b6e83b42 800f0030 000a7b08 0000ffff 0840ffff
[ 72.524883] [<c01a5d88>] (irq_find_matching_fwspec) from [<c01a6ea0>] (irq_create_fwspec_mapping+0x28/0x2e0)
[ 72.535174] [<c01a6ea0>] (irq_create_fwspec_mapping) from [<c01a71a4>] (irq_create_of_mapping+0x4c/0x54)
[ 72.545115] [<c01a71a4>] (irq_create_of_mapping) from [<c0653a70>] (of_irq_get+0x58/0x68)
[ 72.553699] [<c0653a70>] (of_irq_get) from [<c0544d24>] (platform_get_irq+0x1c/0xec)
[ 72.561828] [<c0544d24>] (platform_get_irq) from [<bf1d517c>] (tps6521x_pb_probe+0xd0/0x1a8 [tps65218_pwrbutton])
[ 72.572581] [<bf1d517c>] (tps6521x_pb_probe [tps65218_pwrbutton]) from [<c054537c>] (platform_drv_probe+0x4c/0xac)
[ 72.583426] [<c054537c>] (platform_drv_probe) from [<c05433ac>] (driver_probe_device+0x204/0x2dc)
[ 72.592729] [<c05433ac>] (driver_probe_device) from [<c0541884>] (bus_for_each_drv+0x58/0x8c)
[ 72.601657] [<c0541884>] (bus_for_each_drv) from [<c05430c8>] (__device_attach+0xb0/0x114)
[ 72.610324] [<c05430c8>] (__device_attach) from [<c0542760>] (bus_probe_device+0x88/0x90)
[ 72.618898] [<c0542760>] (bus_probe_device) from [<c0540ba8>] (device_add+0x3b8/0x560)
[ 72.627203] [<c0540ba8>] (device_add) from [<c05450a0>] (platform_device_add+0xa8/0x208)
[ 72.635693] [<c05450a0>] (platform_device_add) from [<c0571240>] (mfd_add_device+0x240/0x338)
[ 72.644634] [<c0571240>] (mfd_add_device) from [<c0571408>] (mfd_add_devices+0xa0/0x104)
[ 72.653120] [<c0571408>] (mfd_add_devices) from [<c05714d0>] (devm_mfd_add_devices+0x60/0xa8)
[ 72.662077] [<c05714d0>] (devm_mfd_add_devices) from [<bf2333fc>] (tps65217_probe+0xe8/0x2ec [tps65217])
[ 72.672026] [<bf2333fc>] (tps65217_probe [tps65217]) from [<c06148ac>] (i2c_device_probe+0x168/0x1f4)
[ 72.681695] [<c06148ac>] (i2c_device_probe) from [<c05433ac>] (driver_probe_device+0x204/0x2dc)
[ 72.690816] [<c05433ac>] (driver_probe_device) from [<c0543538>] (__driver_attach+0xb4/0xb8)
[ 72.699657] [<c0543538>] (__driver_attach) from [<c05417e4>] (bus_for_each_dev+0x60/0x94)
[ 72.708224] [<c05417e4>] (bus_for_each_dev) from [<c05429fc>] (bus_add_driver+0x18c/0x214)
[ 72.716892] [<c05429fc>] (bus_add_driver) from [<c05442f0>] (driver_register+0x78/0xf8)
[ 72.725280] [<c05442f0>] (driver_register) from [<c0615ae0>] (i2c_register_driver+0x38/0x80)
[ 72.734120] [<c0615ae0>] (i2c_register_driver) from [<c010186c>] (do_one_initcall+0x3c/0x178)
[ 72.743055] [<c010186c>] (do_one_initcall) from [<c0230998>] (do_init_module+0x5c/0x1d0)
[ 72.751537] [<c0230998>] (do_init_module) from [<c01d2070>] (load_module+0x1d10/0x21c0)
[ 72.759933] [<c01d2070>] (load_module) from [<c01d2630>] (SyS_init_module+0x110/0x154)
[ 72.768242] [<c01d2630>] (SyS_init_module) from [<c0107560>] (ret_fast_syscall+0x0/0x1c)
[ 72.776725] Code: e5944000 e1540006 0a00001b e594300c (e593c004)
[ 72.783181] ---[ end trace 0278ec325f4689b8 ]---
Fixes: 6556bdacf646 ("mfd: tps65217: Add support for IRQs")
Signed-off-by: Milo Kim <woogyom.kim@gmail.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The kernel WARNs and then crashes today if wm8994_device_init() fails
after calling devm_regulator_bulk_get().
That happens because there are multiple devices involved here and the
order in which managed resources are freed isn't correct.
The regulators are added as children of wm8994->dev. Whereas,
devm_regulator_bulk_get() receives wm8994->dev as the device, though it
gets the same regulators which were added as children of wm8994->dev
earlier.
During failures, the children are removed first and the core eventually
calls regulator_unregister() for them. As regulator_put() was never done
for them (opposite of devm_regulator_bulk_get()), the kernel WARNs at
WARN_ON(rdev->open_count);
And eventually it crashes from debugfs_remove_recursive().
--------x------------------x----------------
wm8994 3-001a: Device is not a WM8994, ID is 0
------------[ cut here ]------------
WARNING: CPU: 0 PID: 1 at /mnt/ssd/all/work/repos/devel/linux/drivers/regulator/core.c:4072 regulator_unregister+0xc8/0xd0
Modules linked in:
CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.8.0-rc6-00154-g54fe84cbd50b #41
Hardware name: SAMSUNG EXYNOS (Flattened Device Tree)
[<c010e24c>] (unwind_backtrace) from [<c010af38>] (show_stack+0x10/0x14)
[<c010af38>] (show_stack) from [<c032a1c4>] (dump_stack+0x88/0x9c)
[<c032a1c4>] (dump_stack) from [<c011a98c>] (__warn+0xe8/0x100)
[<c011a98c>] (__warn) from [<c011aa54>] (warn_slowpath_null+0x20/0x28)
[<c011aa54>] (warn_slowpath_null) from [<c0384a0c>] (regulator_unregister+0xc8/0xd0)
[<c0384a0c>] (regulator_unregister) from [<c0406434>] (release_nodes+0x16c/0x1dc)
[<c0406434>] (release_nodes) from [<c04039c4>] (__device_release_driver+0x8c/0x110)
[<c04039c4>] (__device_release_driver) from [<c0403a64>] (device_release_driver+0x1c/0x28)
[<c0403a64>] (device_release_driver) from [<c0402b24>] (bus_remove_device+0xd8/0x104)
[<c0402b24>] (bus_remove_device) from [<c03ffcd8>] (device_del+0x10c/0x218)
[<c03ffcd8>] (device_del) from [<c0404e4c>] (platform_device_del+0x1c/0x88)
[<c0404e4c>] (platform_device_del) from [<c0404ec4>] (platform_device_unregister+0xc/0x20)
[<c0404ec4>] (platform_device_unregister) from [<c0428bc0>] (mfd_remove_devices_fn+0x5c/0x64)
[<c0428bc0>] (mfd_remove_devices_fn) from [<c03ff9d8>] (device_for_each_child_reverse+0x4c/0x78)
[<c03ff9d8>] (device_for_each_child_reverse) from [<c04288c4>] (mfd_remove_devices+0x20/0x30)
[<c04288c4>] (mfd_remove_devices) from [<c042758c>] (wm8994_device_init+0x2ac/0x7f0)
[<c042758c>] (wm8994_device_init) from [<c04f14a8>] (i2c_device_probe+0x178/0x1fc)
[<c04f14a8>] (i2c_device_probe) from [<c04036fc>] (driver_probe_device+0x214/0x2c0)
[<c04036fc>] (driver_probe_device) from [<c0403854>] (__driver_attach+0xac/0xb0)
[<c0403854>] (__driver_attach) from [<c0401a74>] (bus_for_each_dev+0x68/0x9c)
[<c0401a74>] (bus_for_each_dev) from [<c0402cf0>] (bus_add_driver+0x1a0/0x218)
[<c0402cf0>] (bus_add_driver) from [<c040406c>] (driver_register+0x78/0xf8)
[<c040406c>] (driver_register) from [<c04f20a0>] (i2c_register_driver+0x34/0x84)
[<c04f20a0>] (i2c_register_driver) from [<c01017d0>] (do_one_initcall+0x40/0x170)
[<c01017d0>] (do_one_initcall) from [<c0a00dbc>] (kernel_init_freeable+0x15c/0x1fc)
[<c0a00dbc>] (kernel_init_freeable) from [<c06e07b0>] (kernel_init+0x8/0x114)
[<c06e07b0>] (kernel_init) from [<c0107978>] (ret_from_fork+0x14/0x3c)
---[ end trace 0919d3d0bc998260 ]---
[snip..]
Unable to handle kernel NULL pointer dereference at virtual address 00000078
pgd = c0004000
[00000078] *pgd=00000000
Internal error: Oops: 5 [#1] PREEMPT SMP ARM
Modules linked in:
CPU: 0 PID: 1 Comm: swapper/0 Tainted: G W 4.8.0-rc6-00154-g54fe84cbd50b #41
Hardware name: SAMSUNG EXYNOS (Flattened Device Tree)
task: ee874000 task.stack: ee878000
PC is at down_write+0x14/0x54
LR is at debugfs_remove_recursive+0x30/0x150
[snip..]
[<c06e489c>] (down_write) from [<c02e9954>] (debugfs_remove_recursive+0x30/0x150)
[<c02e9954>] (debugfs_remove_recursive) from [<c0382b78>] (_regulator_put+0x24/0xac)
[<c0382b78>] (_regulator_put) from [<c0382c1c>] (regulator_put+0x1c/0x2c)
[<c0382c1c>] (regulator_put) from [<c0406434>] (release_nodes+0x16c/0x1dc)
[<c0406434>] (release_nodes) from [<c04035d4>] (driver_probe_device+0xec/0x2c0)
[<c04035d4>] (driver_probe_device) from [<c0403854>] (__driver_attach+0xac/0xb0)
[<c0403854>] (__driver_attach) from [<c0401a74>] (bus_for_each_dev+0x68/0x9c)
[<c0401a74>] (bus_for_each_dev) from [<c0402cf0>] (bus_add_driver+0x1a0/0x218)
[<c0402cf0>] (bus_add_driver) from [<c040406c>] (driver_register+0x78/0xf8)
[<c040406c>] (driver_register) from [<c04f20a0>] (i2c_register_driver+0x34/0x84)
[<c04f20a0>] (i2c_register_driver) from [<c01017d0>] (do_one_initcall+0x40/0x170)
[<c01017d0>] (do_one_initcall) from [<c0a00dbc>] (kernel_init_freeable+0x15c/0x1fc)
[<c0a00dbc>] (kernel_init_freeable) from [<c06e07b0>] (kernel_init+0x8/0x114)
[<c06e07b0>] (kernel_init) from [<c0107978>] (ret_from_fork+0x14/0x3c)
Code: e1a04000 f590f000 e3a03001 e34f3fff (e1902f9f)
---[ end trace 0919d3d0bc998262 ]---
--------x------------------x----------------
Fix the kernel warnings and crashes by using regulator_bulk_get()
instead of devm_regulator_bulk_get() and explicitly freeing the supplies
in exit paths.
Tested on Exynos 5250, dual core ARM A15 machine.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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The order in which resources were freed in wm8994_device_exit() isn't
correct. The regulators are removed before they are disabled.
Fix it by reordering code a bit, which makes it exact opposite of
wm8994_device_init() as well.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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The regmap devicetree binding documentation states that a native-endian
property should be supported as well as big-endian & little-endian,
however syscon in its duplication of the parsing of these properties
omits support for native-endian. Fix this by setting
REGMAP_ENDIAN_NATIVE when a native-endian property is found.
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: Lee Jones <lee.jones@linaro.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: linux-mips@linux-mips.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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Make sure to drop the reference taken by bus_find_device_by_name()
before returning from mfd_clone_cell().
Fixes: a9bbba996302 ("mfd: add platform_device sharing support for mfd")
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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Since commit c4dd1ba355aae2bc3d1213da6c66c53e3c31e028
("mfd: stmpe: Add reset support for all STMPE variant")
we're resetting the STMPE expanders before use.
This caused a regression on the STMP2401 on the Nomadik
NHK8815:
stmpe-i2c 0-0043: stmpe2401 detected, chip id: 0x101
nmk-i2c 101f8000.i2c0: write to slave 0x43 timed out
nmk-i2c 101f8000.i2c0: no ack received after address transmission
stmpe-i2c 0-0044: stmpe2401 detected, chip id: 0x101
nmk-i2c 101f8000.i2c0: write to slave 0x44 timed out
nmk-i2c 101f8000.i2c0: no ack received after address transmission
It turns out that we start to poll for the reset bit to
go low again too quickly: the STMPE2401 is not yet online and
ready to be asked for the status of the RESET bit.
By introducing a 10ms delay before starting to hammer
the register for information, we get back to normal:
stmpe-i2c 0-0043: stmpe2401 detected, chip id: 0x101
stmpe-i2c 0-0044: stmpe2401 detected, chip id: 0x101
Cc: stable@vger.kernel.org
Cc: Amelie Delaunay <amelie.delaunay@st.com>
Fixes: c4dd1ba355aa ("mfd: stmpe: Add reset support for all STMPE variant")
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Patrice Chotard <patrice.chotard@st.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
|
|
The wcove USB Type-C driver is currently being flooded with
interrupts that are not targeted to it. The reason for that
is because all CHRG first level interrupts are mapped to it.
This fixes the issue by introducing separate irq for the
usbc device, and mapping only USB Type-C PHY interrupts to
it.
Fixes: 9c6235c86332 ("mfd: intel_soc_pmic_bxtwc: Add bxt_wcove_usbc device")
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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|
Commit 41a3da2b8e163 ("mfd: intel-lpss: Save register context on
suspend") saved the register context while going to suspend and
also put the device in reset state.
Due to the resetting of device, system cannot enter S3/S0ix
states when no_console_suspend flag is enabled. The system
and serial console both hang. The resetting of device is not
needed while going to suspend. Hence remove this code.
Cc: stable@vger.kernel.org
Fixes: 41a3da2b8e163 ("mfd: intel-lpss: Save register context on suspend")
Signed-off-by: Azhar Shaikh <azhar.shaikh@intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
|
|
There are a few issues on Intel Kaby Lake PCH-H properties added by
commit a6a576b78e09 ("mfd: lpss: Add Intel Kaby Lake PCH-H PCI IDs"):
- Input clock of I2C controller on Intel Kaby Lake PCH-H is 120 MHz not
133 MHz. This was probably copy-paste error from Intel Broxton I2C
properties.
- There is no default I2C SDA hold time specified which is used when
ACPI doesn't provide it. I got information from Windows driver team
that Kaby Lake PCH-H can use the same configuration than Intel
Sunrisepoint PCH.
- Common HS-UART properties are not used.
Fix these by reusing the Sunrisepoint properties on Kaby Lake PCH-H.
Fixes: a6a576b78e09 ("mfd: lpss: Add Intel Kaby Lake PCH-H PCI IDs")
Reported-by: Xiang A Wang <xiang.a.wang@intel.com>
Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd
Pull MFD updates from Lee Jones:
"Core framework:
- Add the MFD bindings doc to MAINTAINERS
New drivers:
- X-Powers AC100 Audio CODEC and RTC
- TI LP873x PMIC
- Rockchip RK808 PMIC
- Samsung Exynos Low Power Audio
New device support:
- Add support for STMPE1600 variant to stmpe
- Add support for PM8018 PMIC to pm8921-core
- Add support for AXP806 PMIC in axp20x
- Add support for AXP209 GPIO in axp20x
New functionality:
- Add support for Reset to all STMPE variants
- Add support for MKBP event support to cros_ec
- Add support for USB to intel_soc_pmic_bxtwc
- Add support for IRQs and Power Button to tps65217
Fix-ups:
- Clean-up defunct author emails (da9063, max14577)
- Kconfig fixups (wm8350-i2c, as37220
- Constify (altera-a10sr, sm501)
- Supply PCI IDs (intel-lpss-pci)
- Improve clocking (qcom_rpm)
- Fix IRQ probing (ucb1x00-core)
- Ensure fault log is cleared (da9052)
- Remove NO_IRQ check (ucb1x00-core)
- Supply I2C properties (intel-lpss-acpi, intel-lpss-pci)
- Non standard declaration (tps65217, max8997-irq)
- Remove unused code (lp873x, db8500-prcmu, ab8500-debugfs,
cros_ec_spi)
- Make non-modular (altera-a10sr, intel_msic, smsc-ece1099,
sun6i-prcm, twl-core)
- OF bindings (ac100, stmpe, qcom-pm8xxx, qcom-rpm, rk808, axp20x,
lp873x, exynos5433-lpass, act8945a, aspeed-scu, twl6040, arizona)
Bugfixes:
- Release OF pointer (qcom_rpm)
- Avoid double shifting in suspend/resume (88pm80x)
- Fix 'defined but not used' error (exynos-lpass)
- Fix 'sleeping whilst attomic' (atmel-hlcdc)"
* tag 'mfd-for-linus-4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (69 commits)
mfd: arizona: Handle probe deferral for reset GPIO
mfd: arizona: Remove arizona_of_get_named_gpio helper function
mfd: arizona: Add DT options for max_channels_clocked and PDM speaker config
mfd: twl6040: Register child device for twl6040-pdmclk
mfd: cros_ec_spi: Remove unused variable 'request'
mfd: omap-usb-host: Return value is not 'const int'
mfd: ab8500-debugfs: Remove 'weak' function suspend_test_wake_cause_interrupt_is_mine()
mfd: ab8500-debugfs: Remove ab8500_dump_all_banks_to_mem()
mfd: db8500-prcmu: Remove unused *prcmu_set_ddr_opp() calls
mfd: ab8500-debugfs: Prevent initialised field from being over-written
mfd: max8997-irq: 'inline' should be at the beginning of the declaration
mfd: rk808: Fix RK818_IRQ_DISCHG_ILIM initializer
mfd: tps65217: Fix nonstandard declaration
mfd: lp873x: Remove unused mutex lock from struct lp873x
mfd: atmel-hlcdc: Do not sleep in atomic context
mfd: exynos-lpass: Mark PM functions as __maybe_unused
mfd: intel-lpss: Add default I2C device properties for Apollo Lake
mfd: twl-core: Make it explicitly non-modular
mfd: sun6i-prcm: Make it explicitly non-modular
mfd: smsc-ece1099: Make it explicitly non-modular
...
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git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull GPIO updates from Linus Walleij:
"This is the bulk of GPIO changes for the v4.9 series:
Subsystem improvements:
- do away with the last users of the obsolete Kconfig options
ARCH_REQUIRE_GPIOLIB and ARCH_WANT_OPTIONAL_GPIOLIB (the latter
always sounded like an item on a wishlist to Santa Claus to me). We
can now select GPIOLIB and be done with it, for all archs. After
some struggle it even work on UM. Not that it has GPIO, but if it
wants to, it can select the library.
- continued efforts to make drivers properly either tristate or bool.
- introduce a warning for drivers assigning default triggers to their
irqchip lines when probed from device tree, so we find and fix
these ambigous drivers. It is agreed that in the OF config path,
the device tree defines trigger characteristics.
- the same warning, mutatis mutandis, for ACPI-probed GPIO irqchips.
- we introduce the ability to mark certain IRQ lines as "unusable" as
they can be taken by BIOS/firmware, unrouted in silicon and
generally nasty if you use them, and such things. This is put to
good use in the STMPE driver and also in the Cherryview pin control
driver.
- a new "mockup" virtual GPIO device that can be used for testing.
The plan is to add unit tests under tools/* for exercising this
device and verify that the kernel code paths are working as they
should.
- make memory-mapped I/O-drivers depend on HAS_IOMEM. This was
implicit all the time, but when people started building UM with
allyesconfig or allmodconfig it exploded in their face.
- move some stray bits of device tree and ACPI HW description
callbacks down into their respective implementation silo. These
were causing issues when compiling on !HAS_IOMEM as well, so now
eventually UM compiles the GPIOLIB library if it wants to.
New drivers:
- new driver for the Aspeed GPIO front-end companion to the pin
controller merged through the pin control tree.
- new driver for the LP873x PMIC GPIO portions.
- new driver for Technologic Systems' I2C FPGA GPIO such as TS4900,
TS-7970, TS-7990 and TS-4100.
- new driver for the Broadcom BCM63xx series including BCM6338 and
BCM6345.
- new driver for the Intel WhiskeyCove PMIC GPIO.
- new driver for the Allwinner AXP209 PMIC GPIO portions.
- new driver for Diamond Systems 48 line GPIO-MM, another of these
port-mapped I/O expansion cards.
- support the STMicroelectronics STMPE1600 variant in the STMPE
driver.
Driver improvements:
- the STMPE driver now supports rising/falling edge detection
properly for IRQs.
- the PCA954x will now fetch and enable its VCC regulator properly.
- major rework of the PCA953x driver with the goal of eventually
switching it over to use regmap and thus modernize it even more.
- switch the IOP driver to use the generic MMIO GPIO library.
- move the ages old HTC EGPIO (extended GPIO) GPIO expander driver
over to this subsystem from MFD, achieveing some separation of
concerns"
* tag 'gpio-v4.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (81 commits)
gpio: add missing static inline
gpio: OF: localize some gpiochip init functions
gpio: acpi: separation of concerns
gpio: OF: separation of concerns
gpio: make memory-mapped drivers depend on HAS_IOMEM
gpio: stmpe: use BIT() macro
gpio: stmpe: forbid unused lines to be mapped as IRQs
mfd/gpio: Move HTC GPIO driver to GPIO subsystem
gpio: MAINTAINERS: Add an entry for GPIO mockup driver
gpio/mockup: add virtual gpio device
gpio: Added zynq specific check for special pins on bank zero
gpio: axp209: Implement get_direction
gpio: aspeed: remove redundant return value check
gpio: loongson1: remove redundant return value check
ARM: omap2: fix missing include
gpio: tc3589x: fix up complaints on unsigned
gpio: tc3589x: add .get_direction() and small cleanup
gpio: f7188x: use gpiochip_get_data instead of container_of
gpio: tps65218: use devm_gpiochip_add_data() for gpio registration
gpio: aspeed: fix return value check in aspeed_gpio_probe()
...
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
Pull regulator updates from Mark Brown:
"This is an extremely quiet release for the regulator API, we've got a
small set of bug fixes and minor feature enhancements for drivers plus
a couple of more visible changes:
- add support for ramp times in regulators that don't use selectors.
- new driver for LTC3676"
* tag 'regulator-v4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
regulator: dbx500: remove unused functions in dbx500-prcmu.c
regulator: pv88080: Update regulator for PV88080 BB silicon support
regulator: core: don't return error with inadequate reason
regulator: tps65910: Work around silicon erratum SWCZ010
regulator: core: Add set_voltage_time op
regulator: core: Don't skip set_voltage_time when ramp delay disabled
regulator: core: Simplify error flow in _regulator_do_set_voltage()
regulator: core: Use local ops variable in _regulator_do_set_voltage()
regulator: hi6421: mark hi6421_regulator_ldo_get_optimum_mode() static
regulator: Kconfig: Fix typo
regulator: bindings: Use the correct symbol for second
regulator: Remove support for optional supplies in the bulk API
regulator: Add LTC3676 support
regulator: rk808: Delete owner assignment
regulator: tps65218: do not disable DCDC3 during poweroff on broken PMICs
mfd: tps65218: add version check to the PMIC probe
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The Arizona CODECs will generally function correctly without a reset line
although it is strongly advised to have one, as such we do allow the system
to boot if the reset gpio is missing or incorrectly specified. However
we should fail probe if we get a probe deferral request, this patch adds
handling for this case.
Reported-by: Richard Fitzgerald <rf@opensource.wolfsonmicro.com>
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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This function is only used in a single place and no new users will be
added as all the devices other required GPIOs are already handled. As
such just merge the code back into the calling function.
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
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This patch adds DT settings for the max_channels_clocked, spk_fmt and
spk_mute pdata.
Signed-off-by: Richard Fitzgerald <rf@opensource.wolfsonmicro.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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The McPDM in OMAP4/5 is using the pdmclk from twl6040 as functional clock.
The twl6040-pdmclk driver provides a clock which can be used to make sure
that the pdmclk is active when the McPDM is in use.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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Signed-off-by: Lee Jones <lee.jones@linaro.org>
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Change from 'const int' to just 'int'.
Cc: <robh+dt@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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suspend_test_wake_cause_interrupt_is_mine()
There are no other functions which can over-ride it.
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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Doesn't appear to be used. No call sites exist.
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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There are no call sites for these functions. Strip them out.
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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Due to the lack of parity in the way array fields have been named/
numbered, a mistake was made where more debug fields were declared
than actually existed. In doing so, 2 fields were added, which
although unclear, were already declared in the array. The result
was that the latter declarations trashed the former ones.
This patch places the array back in the correct order and removes
the offending NULL entries.
While we're at it, let's ensure this doesn't happen again by naming
each field properly and add a new *_LAST define to describe how
many fields there should be.
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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Reported by [-Wold-style-declaration].
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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The tps65217 gained a new warning when building with W=1:
drivers/mfd/tps65217.c:85:1: error: 'inline' is not at beginning of declaration [-Werror=old-style-declaration]
This fixes it by putting the 'inline' modifier before 'const'.
Fixes: 262d5cc6ceb2 ("mfd: tps65217: Add support for IRQs")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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The mutex is not used, so remove it.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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readl_poll_timeout() calls usleep_range(), but
regmap_atmel_hlcdc_reg_write() is called in atomic context (regmap
spinlock held).
Replace the readl_poll_timeout() call by readl_poll_timeout_atomic().
Cc: <stable@vger.kernel.org>
Fixes: ea31c0cf9b07 ("mfd: atmel-hlcdc: Implement config synchronization")
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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The newly added exynos lpass driver produces a build warning when
CONFIG_PM is disabled since the only callers of exynos_lpass_disable
are under an #ifdef:
drivers/mfd/exynos-lpass.c:93:13: error: 'exynos_lpass_disable' defined but not used [-Werror=unused-function]
static void exynos_lpass_disable(struct exynos_lpass *lpass)
This removes the #ifdef and replaces it with __maybe_unused annotations
so the compiler can leave out the unused code silently with less
room for mistakes.
Fixes: 36c26760bba8 ("mfd: Add Samsung Exynos Low Power Audio Subsystem driver")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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Default I2C device properties for Intel Broxton, especially SDA hold time
may not be enough on Intel Apollo Lake. These properties are used in case
we don't get timing parameters from ACPI.
The default SDA hold time for Broxton may fail with arbitration lost errors
on Apollo Lake:
i2c_designware i2c_designware.1: i2c_dw_handle_tx_abort: lost arbitration
Fix this by using different default device properties on Apollo Lake than
Broxton.
Reported-by: Paul Liu <paul.liu@canonical.com>
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=156181
Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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The Kconfig currently controlling compilation of this code is:
drivers/mfd/Kconfig:config TWL4030_CORE
drivers/mfd/Kconfig: bool "TI TWL4030/TWL5030/TWL6030/TPS659x0 Support"
...meaning that it currently is not being built as a module by anyone.
Lets remove what modular code that we can, so that when reading the
driver there is less doubt that it is builtin-only. Note that we can't
remove the twl_remove() itself ; it is still used by the probe unwind
routine. So we leave it linked into the .remove as well, even though
it will most likely never be called via that path from an unbind.
Since module_i2c_driver() uses the same init level priority as
builtin_i2c_driver() the init ordering remains unchanged with
this commit.
Also note that MODULE_DEVICE_TABLE is a no-op for non-modular code.
We also delete the MODULE_LICENSE tag etc. since all that information
is already contained at the top of the file in the comments.
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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|
The Kconfig currently controlling compilation of this code is:
drivers/mfd/Kconfig:config MFD_SUN6I_PRCM
drivers/mfd/Kconfig: bool "Allwinner A31 PRCM controller"
...meaning that it currently is not being built as a module by anyone.
Lets remove the couple traces of modularity so that when reading the
driver there is no doubt it is builtin-only.
Since module_platform_driver() uses the same init level priority as
builtin_platform_driver() the init ordering remains unchanged with
this commit.
We also delete the MODULE_LICENSE tag etc. since all that information
is already contained at the top of the file in the comments.
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
|
|
The Kconfig currently controlling compilation of this code is:
drivers/mfd/Kconfig:config MFD_SMSC
drivers/mfd/Kconfig: bool "SMSC ECE1099 series chips"
...meaning that it currently is not being built as a module by anyone.
Lets remove the modular code that is essentially orphaned, so that
when reading the driver there is no doubt it is builtin-only.
Since module_init was not in use by this code, the init ordering
remains unchanged with this commit.
We replace module.h with init.h and delete an unused moduleparam.h
include.
Also note that MODULE_DEVICE_TABLE is a no-op for non-modular code.
We also delete the MODULE_LICENSE tag etc. since all that information
is already contained at the top of the file in the comments.
Cc: Sourav Poddar <sourav.poddar@ti.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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|
The Kconfig currently controlling compilation of this code is:
drivers/mfd/Kconfig:config MFD_INTEL_MSIC
drivers/mfd/Kconfig: bool "Intel MSIC
...meaning that it currently is not being built as a module by anyone.
Lets remove the couple instances of module references, so that
when reading the driver there is no doubt it is builtin-only.
Since module_platform_driver() uses the same init level priority as
builtin_platform_driver() the init ordering remains unchanged with
this commit.
We also delete the MODULE_LICENSE tag etc. since all that information
is already contained at the top of the file in the comments.
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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|
The Kconfig currently controlling compilation of this code is:
drivers/mfd/Kconfig:config MFD_AS3722
drivers/mfd/Kconfig: bool "ams AS3722 Power Management IC"
...meaning that it currently is not being built as a module by anyone.
In response to an earlier patch set suggesting removal of the unused
modular code, Laxman suggested that this driver be instead moved to
tristate.
We do that here, and confirm it can build and modpost as a tristate.
However there remains to be runtime testing in order to ensure this
change is 100% functional for "=m".
Cc: Florian Lobmaier <florian.lobmaier@ams.com>
Cc: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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|
The Kconfig currently controlling compilation of this code is:
drivers/mfd/Kconfig:config MFD_ALTERA_A10SR
drivers/mfd/Kconfig: bool "Altera Arria10 DevKit System Resource chip"
...meaning that it currently is not being built as a module by anyone.
Lets remove the modular code that is essentially orphaned, so that
when reading the driver there is no doubt it is builtin-only.
Since builtin_driver() uses the same init level priority as
module_spi_driver() the init ordering remains unchanged with
this commit. [Note that there is no builtin_spi_driver macro,
so we open-code what it would be via builtin_driver().]
Also note that MODULE_DEVICE_TABLE is a no-op for non-modular code.
We also delete the MODULE_LICENSE tag etc. since all that information
was (or is now) contained at the top of the file in the comments.
Cc: Thor Thayer <tthayer@opensource.altera.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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Add tps65217 power buttor subdevice with assigned IRQ resources.
Signed-off-by: Marcin Niestroj <m.niestroj@grinn-global.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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|
Add support for handling IRQs: power button, AC and USB power state
changes. Mask and interrupt bits are shared within one register, which
prevents us to use regmap_irq implementation. New irq_domain is created in
order to add interrupt handling for each tps65217's subsystem. IRQ
resources have been added for charger subsystem to be able to notify about
AC and USB state changes.
Signed-off-by: Marcin Niestroj <m.niestroj@grinn-global.com>
Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com>
Tested-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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|
These structures are only used to copy into other structures, so declare
them as const.
The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)
// <smpl>
@r disable optional_qualifier@
identifier i;
position p;
@@
static struct gpio_chip i@p = { ... };
@ok@
identifier r.i;
expression e;
position p;
@@
e = i@p;
@bad@
position p != {r.p,ok.p};
identifier r.i;
struct gpio_chip e;
@@
e@i@p
@depends on !bad disable optional_qualifier@
identifier r.i;
@@
static
+const
struct gpio_chip i = { ... };
// </smpl>
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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|
probe_irq_off() returns '0' on failure, not NO_IRQ, so the check
in this driver is clearly wrong. This replaces it with the
regular '!irq' check used in other drivers.
The sa1100 platform that this driver is used on originally numbered
all its interrupts starting at '0', which would have conflicted with
this change, but as of commit 18f3aec ("ARM: 8230/1: sa1100: shift
IRQs by one"), this is not a problem any more.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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Bulk access is not working with twl6040, we need to use single register
access. Bulk access would happen when we try to sync the regcache after
power on.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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|
As runtime PM doesn't function whilst processing system suspend/resume
operations and the Arizona IRQ handlers need runtime PM to function
we must disable IRQs during these operations. Whilst this is
already done in the driver we are using suspend/suspend_late and
resume/resume_noirq to do so which has two problems. Firstly, as
suspend_late is before suspend_noirq that means we still have a
small window where an IRQ can cause issues. Secondly, if another
suspend_late handler fails after ours has run then (as resume_noirq
will not run) we will make unbalanced calls to enable_irq.
This is all simply fixed by using the suspend_noirq callback rather
than suspend_late. Whilst we are doing this tidy the code up a little,
and use the appropriate helper macros.
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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To regard the act8945a-charger as a sub-device, add .of_compatible for
act8945a-charger cell.
Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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There are some cases in arizona_dev_init, such as where we don't
recognise the chip ID, in which we head to the error path without
setting a sensible error code in ret. This would lead to the chip
silently failing probe, as it would still return 0. Fix this up by
adding appropriate sets of the return value.
Whilst adding these update the existing paths that do return an error
when the chip is not recognised to use ENODEV, which seems like a better
fit.
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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This patch adds common driver for the Top block of the Samsung Exynos
SoC Low Power Audio Subsystem. This is a minimal driver which prepares
resources for IP blocks like I2S, audio DMA and UART and exposes
a regmap for the Top block registers. Also system power ops are added
to ensure the Audio Subsystem is operational after system suspend/resume
cycle.
Signed-off-by: Inha Song <ideal.song@samsung.com>
Signed-off-by: Beomho Seo <beomho.seo@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Tested-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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The function da9052_clear_fault_log() is added to mitigate the case of
persistent data being transferred between reboots.
Clearance of any the persistent information within the DA9053 FAULT_LOG
register must be completed during start-up so the fault-log does not
continue with previous values. A clearance function has been added here in
the kernel driver because wiping the fault-log cannot be counted on outside
the Linux kernel.
Signed-off-by: Steve Twiss <stwiss.opensource@diasemi.com>
Reviewed-by: Adam Thomson <adam.thomson.opensource@diasemi.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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Adjust jump targets according to the Linux coding style convention.
Another check for the variable "status" can be omitted then at the end.
Link: https://lkml.kernel.org/g/<20160628163146.GG29166@dell>
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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Member "status" of struct usb_sg_request is managed by usb core. A
spin lock is used to serialize the change of it. The driver could
check the value of req->status, but should avoid changing it without
the hold of the spinlock. Otherwise, it could cause race or error
in usb core.
This patch could be backported to stable kernels with version later
than v3.14.
Cc: stable@vger.kernel.org # 3.14+
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Roger Tseng <rogerable@realtek.com>
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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probe_irq_on() only returns non-zero if it found any interrupts below
IRQ32 which could be probe candidates. If all the probable interrupts
are higher than 32, then this will cause a failure. Fix this.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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