From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
stable@vger.kernel.org, Roger Quadros <rogerq@ti.com>,
Bartosz Golaszewski <bgolaszewski@baylibre.com>
Subject: [PATCH 4.14 30/46] gpio: pcf857x: Fix interrupts on multiple instances
Date: Mon, 4 Feb 2019 11:37:01 +0100 [thread overview]
Message-ID: <20190204103613.928121972@linuxfoundation.org> (raw)
In-Reply-To: <20190204103608.651205056@linuxfoundation.org>
4.14-stable review patch. If anyone has any objections, please let me know.
------------------
From: Roger Quadros <rogerq@ti.com>
commit 2486e67374aa8b7854c2de32869642c2873b3d53 upstream.
When multiple instances of pcf857x chips are present, a fix up
message [1] is printed during the probe of the 2nd and later
instances.
The issue is that the driver is using the same irq_chip data
structure between multiple instances.
Fix this by allocating the irq_chip data structure per instance.
[1] fix up message addressed by this patch
[ 1.212100] gpio gpiochip9: (pcf8575): detected irqchip that is shared with multiple gpiochips: please fix the driver.
Cc: Stable <stable@vger.kernel.org>
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/gpio/gpio-pcf857x.c | 26 ++++++++++++--------------
1 file changed, 12 insertions(+), 14 deletions(-)
--- a/drivers/gpio/gpio-pcf857x.c
+++ b/drivers/gpio/gpio-pcf857x.c
@@ -84,6 +84,7 @@ MODULE_DEVICE_TABLE(of, pcf857x_of_table
*/
struct pcf857x {
struct gpio_chip chip;
+ struct irq_chip irqchip;
struct i2c_client *client;
struct mutex lock; /* protect 'out' */
unsigned out; /* software latch */
@@ -252,18 +253,6 @@ static void pcf857x_irq_bus_sync_unlock(
mutex_unlock(&gpio->lock);
}
-static struct irq_chip pcf857x_irq_chip = {
- .name = "pcf857x",
- .irq_enable = pcf857x_irq_enable,
- .irq_disable = pcf857x_irq_disable,
- .irq_ack = noop,
- .irq_mask = noop,
- .irq_unmask = noop,
- .irq_set_wake = pcf857x_irq_set_wake,
- .irq_bus_lock = pcf857x_irq_bus_lock,
- .irq_bus_sync_unlock = pcf857x_irq_bus_sync_unlock,
-};
-
/*-------------------------------------------------------------------------*/
static int pcf857x_probe(struct i2c_client *client,
@@ -376,8 +365,17 @@ static int pcf857x_probe(struct i2c_clie
/* Enable irqchip if we have an interrupt */
if (client->irq) {
+ gpio->irqchip.name = "pcf857x",
+ gpio->irqchip.irq_enable = pcf857x_irq_enable,
+ gpio->irqchip.irq_disable = pcf857x_irq_disable,
+ gpio->irqchip.irq_ack = noop,
+ gpio->irqchip.irq_mask = noop,
+ gpio->irqchip.irq_unmask = noop,
+ gpio->irqchip.irq_set_wake = pcf857x_irq_set_wake,
+ gpio->irqchip.irq_bus_lock = pcf857x_irq_bus_lock,
+ gpio->irqchip.irq_bus_sync_unlock = pcf857x_irq_bus_sync_unlock,
status = gpiochip_irqchip_add_nested(&gpio->chip,
- &pcf857x_irq_chip,
+ &gpio->irqchip,
0, handle_level_irq,
IRQ_TYPE_NONE);
if (status) {
@@ -392,7 +390,7 @@ static int pcf857x_probe(struct i2c_clie
if (status)
goto fail;
- gpiochip_set_nested_irqchip(&gpio->chip, &pcf857x_irq_chip,
+ gpiochip_set_nested_irqchip(&gpio->chip, &gpio->irqchip,
client->irq);
gpio->irq_parent = client->irq;
}
next prev parent reply other threads:[~2019-02-04 11:04 UTC|newest]
Thread overview: 51+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-04 10:36 [PATCH 4.14 00/46] 4.14.98-stable review Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.14 01/46] Fix "net: ipv4: do not handle duplicate fragments as overlapping" Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.14 02/46] ipv6: Consider sk_bound_dev_if when binding a socket to an address Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.14 03/46] ipv6: sr: clear IP6CB(skb) on SRH ip4ip6 encapsulation Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.14 04/46] l2tp: copy 4 more bytes to linear part if necessary Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.14 05/46] net/mlx4_core: Add masking for a few queries on HCA caps Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.14 06/46] netrom: switch to sock timer API Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.14 07/46] net/rose: fix NULL ax25_cb kernel panic Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.14 08/46] net: set default network namespace in init_dummy_netdev() Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.14 09/46] ucc_geth: Reset BQL queue when stopping device Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.14 10/46] net/mlx5e: Allow MAC invalidation while spoofchk is ON Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.14 11/46] Revert "net/mlx5e: E-Switch, Initialize eswitch only if eswitch manager" Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.14 12/46] virtio_net: Dont enable NAPI when interface is down Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.14 13/46] virtio_net: Dont call free_old_xmit_skbs for xdp_frames Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.14 14/46] virtio_net: Fix not restoring real_num_rx_queues Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.14 15/46] sctp: improve the events for sctp stream adding Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.14 16/46] sctp: improve the events for sctp stream reset Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.14 17/46] l2tp: remove l2specific_len dependency in l2tp_core Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.14 18/46] l2tp: fix reading optional fields of L2TPv3 Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.14 19/46] ipvlan, l3mdev: fix broken l3s mode wrt local routes Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.14 20/46] CIFS: Do not count -ENODATA as failure for query directory Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.14 21/46] fs/dcache: Fix incorrect nr_dentry_unused accounting in shrink_dcache_sb() Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.14 22/46] iommu/vt-d: Fix memory leak in intel_iommu_put_resv_regions() Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.14 23/46] selftests/seccomp: Enhance per-arch ptrace syscall skip tests Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.14 24/46] NFS: Fix up return value on fatal errors in nfs_page_async_flush() Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.14 25/46] ARM: cns3xxx: Fix writing to wrong PCI config registers after alignment Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.14 26/46] arm64: kaslr: ensure randomized quantities are clean also when kaslr is off Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.14 27/46] arm64: hyp-stub: Forbid kprobing of the hyp-stub Greg Kroah-Hartman
2019-02-04 10:36 ` [PATCH 4.14 28/46] arm64: hibernate: Clean the __hyp_text to PoC after resume Greg Kroah-Hartman
2019-02-04 10:37 ` [PATCH 4.14 29/46] gpio: altera-a10sr: Set proper output level for direction_output Greg Kroah-Hartman
2019-02-04 10:37 ` Greg Kroah-Hartman [this message]
2019-02-04 10:37 ` [PATCH 4.14 31/46] gfs2: Revert "Fix loop in gfs2_rbm_find" Greg Kroah-Hartman
2019-02-04 10:37 ` [PATCH 4.14 32/46] mmc: bcm2835: Fix DMA channel leak on probe error Greg Kroah-Hartman
2019-02-04 10:37 ` [PATCH 4.14 33/46] ALSA: hda/realtek - Fixed hp_pin no value Greg Kroah-Hartman
2019-02-04 10:37 ` [PATCH 4.14 34/46] IB/hfi1: Remove overly conservative VM_EXEC flag check Greg Kroah-Hartman
2019-02-04 10:37 ` [PATCH 4.14 35/46] platform/x86: asus-nb-wmi: Map 0x35 to KEY_SCREENLOCK Greg Kroah-Hartman
2019-02-04 10:37 ` [PATCH 4.14 36/46] platform/x86: asus-nb-wmi: Drop mapping of 0x33 and 0x34 scan codes Greg Kroah-Hartman
2019-02-04 10:37 ` [PATCH 4.14 37/46] mmc: sdhci-iproc: handle mmc_of_parse() errors during probe Greg Kroah-Hartman
2019-02-04 10:37 ` [PATCH 4.14 38/46] kernel/exit.c: release ptraced tasks before zap_pid_ns_processes Greg Kroah-Hartman
2019-02-04 10:37 ` [PATCH 4.14 39/46] oom, oom_reaper: do not enqueue same task twice Greg Kroah-Hartman
2019-02-04 10:37 ` [PATCH 4.14 40/46] mm, oom: fix use-after-free in oom_kill_process Greg Kroah-Hartman
2019-02-04 10:37 ` [PATCH 4.14 41/46] mm: hwpoison: use do_send_sig_info() instead of force_sig() Greg Kroah-Hartman
2019-02-04 10:37 ` [PATCH 4.14 42/46] mm: migrate: dont rely on __PageMovable() of newpage after unlocking it Greg Kroah-Hartman
2019-02-04 10:37 ` [PATCH 4.14 43/46] md/raid5: fix out of memory during raid cache recovery Greg Kroah-Hartman
2019-02-04 10:37 ` [PATCH 4.14 44/46] cifs: Always resolve hostname before reconnecting Greg Kroah-Hartman
2019-02-04 10:37 ` [PATCH 4.14 45/46] drivers: core: Remove glue dirs from sysfs earlier Greg Kroah-Hartman
2019-02-04 10:37 ` [PATCH 4.14 46/46] fanotify: fix handling of events on child sub-directory Greg Kroah-Hartman
2019-02-04 21:49 ` [PATCH 4.14 00/46] 4.14.98-stable review Guenter Roeck
2019-02-05 6:38 ` Naresh Kamboju
2019-02-05 10:20 ` Jon Hunter
2019-02-05 14:42 ` Greg Kroah-Hartman
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