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From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: "Greg Kroah-Hartman" <gregkh@linuxfoundation.org>,
	stable@vger.kernel.org, "Pali Rohár" <pali@kernel.org>,
	"Bartosz Golaszewski" <brgl@bgdev.pl>,
	"Sasha Levin" <sashal@kernel.org>
Subject: [PATCH 4.14 02/40] gpio: mpc8xxx: Fix support for IRQ_TYPE_LEVEL_LOW flow_type in mpc85xx
Date: Mon, 26 Sep 2022 12:11:30 +0200	[thread overview]
Message-ID: <20220926100738.285355970@linuxfoundation.org> (raw)
In-Reply-To: <20220926100738.148626940@linuxfoundation.org>

From: Pali Rohár <pali@kernel.org>

[ Upstream commit 279c12df8d2efb28def9d037f288cbfb97c30fe2 ]

Commit e39d5ef67804 ("powerpc/5xxx: extend mpc8xxx_gpio driver to support
mpc512x gpios") implemented support for IRQ_TYPE_LEVEL_LOW flow type in
mpc512x via falling edge type. Do same for mpc85xx which support was added
in commit 345e5c8a1cc3 ("powerpc: Add interrupt support to mpc8xxx_gpio").

Fixes probing of lm90 hwmon driver on mpc85xx based board which use level
interrupt. Without it kernel prints error and refuse lm90 to work:

    [   15.258370] genirq: Setting trigger mode 8 for irq 49 failed (mpc8xxx_irq_set_type+0x0/0xf8)
    [   15.267168] lm90 0-004c: cannot request IRQ 49
    [   15.272708] lm90: probe of 0-004c failed with error -22

Fixes: 345e5c8a1cc3 ("powerpc: Add interrupt support to mpc8xxx_gpio")
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpio/gpio-mpc8xxx.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpio/gpio-mpc8xxx.c b/drivers/gpio/gpio-mpc8xxx.c
index d5f735ce0dd4..1b213c49ec0f 100644
--- a/drivers/gpio/gpio-mpc8xxx.c
+++ b/drivers/gpio/gpio-mpc8xxx.c
@@ -157,6 +157,7 @@ static int mpc8xxx_irq_set_type(struct irq_data *d, unsigned int flow_type)
 
 	switch (flow_type) {
 	case IRQ_TYPE_EDGE_FALLING:
+	case IRQ_TYPE_LEVEL_LOW:
 		raw_spin_lock_irqsave(&mpc8xxx_gc->lock, flags);
 		gc->write_reg(mpc8xxx_gc->regs + GPIO_ICR,
 			gc->read_reg(mpc8xxx_gc->regs + GPIO_ICR)
-- 
2.35.1




  parent reply	other threads:[~2022-09-26 10:21 UTC|newest]

Thread overview: 46+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-09-26 10:11 [PATCH 4.14 00/40] 4.14.295-rc1 review Greg Kroah-Hartman
2022-09-26 10:11 ` [PATCH 4.14 01/40] of: fdt: fix off-by-one error in unflatten_dt_nodes() Greg Kroah-Hartman
2022-09-26 10:11 ` Greg Kroah-Hartman [this message]
2022-09-26 10:11 ` [PATCH 4.14 03/40] drm/meson: Correct OSD1 global alpha value Greg Kroah-Hartman
2022-09-26 10:11 ` [PATCH 4.14 04/40] parisc: ccio-dma: Add missing iounmap in error path in ccio_probe() Greg Kroah-Hartman
2022-09-26 10:11 ` [PATCH 4.14 05/40] efi/libstub: Disable Shadow Call Stack Greg Kroah-Hartman
2022-09-26 11:14   ` Pavel Machek
2022-09-26 15:56     ` Greg Kroah-Hartman
2022-09-26 10:11 ` [PATCH 4.14 06/40] efi: libstub: Disable struct randomization Greg Kroah-Hartman
2022-09-26 11:08   ` Pavel Machek
2022-09-26 14:16     ` Ard Biesheuvel
2022-09-26 15:53       ` Greg Kroah-Hartman
2022-09-26 10:11 ` [PATCH 4.14 07/40] cifs: dont send down the destination address to sendmsg for a SOCK_STREAM Greg Kroah-Hartman
2022-09-26 10:11 ` [PATCH 4.14 08/40] ASoC: nau8824: Fix semaphore unbalance at error paths Greg Kroah-Hartman
2022-09-26 10:11 ` [PATCH 4.14 09/40] regulator: pfuze100: Fix the global-out-of-bounds access in pfuze100_regulator_probe() Greg Kroah-Hartman
2022-09-26 10:11 ` [PATCH 4.14 10/40] ALSA: hda/sigmatel: Keep power up while beep is enabled Greg Kroah-Hartman
2022-09-26 10:11 ` [PATCH 4.14 11/40] net: usb: qmi_wwan: add Quectel RM520N Greg Kroah-Hartman
2022-09-26 10:11 ` [PATCH 4.14 12/40] MIPS: OCTEON: irq: Fix octeon_irq_force_ciu_mapping() Greg Kroah-Hartman
2022-09-26 10:11 ` [PATCH 4.14 13/40] mksysmap: Fix the mismatch of L0 symbols in System.map Greg Kroah-Hartman
2022-09-26 10:11 ` [PATCH 4.14 14/40] video: fbdev: pxa3xx-gcu: Fix integer overflow in pxa3xx_gcu_write Greg Kroah-Hartman
2022-09-26 10:11 ` [PATCH 4.14 15/40] ALSA: hda/sigmatel: Fix unused variable warning for beep power change Greg Kroah-Hartman
2022-09-26 10:11 ` [PATCH 4.14 16/40] wifi: mac80211: Fix UAF in ieee80211_scan_rx() Greg Kroah-Hartman
2022-09-26 10:11 ` [PATCH 4.14 17/40] USB: core: Fix RST error in hub.c Greg Kroah-Hartman
2022-09-26 10:11 ` [PATCH 4.14 18/40] USB: serial: option: add Quectel BG95 0x0203 composition Greg Kroah-Hartman
2022-09-26 10:11 ` [PATCH 4.14 19/40] USB: serial: option: add Quectel RM520N Greg Kroah-Hartman
2022-09-26 10:11 ` [PATCH 4.14 20/40] ALSA: hda/tegra: set depop delay for tegra Greg Kroah-Hartman
2022-09-26 10:11 ` [PATCH 4.14 21/40] ALSA: hda: add Intel 5 Series / 3400 PCI DID Greg Kroah-Hartman
2022-09-26 10:11 ` [PATCH 4.14 22/40] mm/slub: fix to return errno if kmalloc() fails Greg Kroah-Hartman
2022-09-26 10:11 ` [PATCH 4.14 23/40] arm64: dts: rockchip: Remove enable-active-low from rk3399-puma Greg Kroah-Hartman
2022-09-26 10:11 ` [PATCH 4.14 24/40] netfilter: nf_conntrack_sip: fix ct_sip_walk_headers Greg Kroah-Hartman
2022-09-26 10:11 ` [PATCH 4.14 25/40] netfilter: nf_conntrack_irc: Tighten matching on DCC message Greg Kroah-Hartman
2022-09-26 10:11 ` [PATCH 4.14 26/40] iavf: Fix cached head and tail value for iavf_get_tx_pending Greg Kroah-Hartman
2022-09-26 10:11 ` [PATCH 4.14 27/40] ipvlan: Fix out-of-bound bugs caused by unset skb->mac_header Greg Kroah-Hartman
2022-09-26 10:11 ` [PATCH 4.14 28/40] net: team: Unsync device addresses on ndo_stop Greg Kroah-Hartman
2022-09-26 10:11 ` [PATCH 4.14 29/40] MIPS: lantiq: export clk_get_io() for lantiq_wdt.ko Greg Kroah-Hartman
2022-09-26 10:11 ` [PATCH 4.14 30/40] of: mdio: Add of_node_put() when breaking out of for_each_xx Greg Kroah-Hartman
2022-09-26 10:11 ` [PATCH 4.14 31/40] netfilter: ebtables: fix memory leak when blob is malformed Greg Kroah-Hartman
2022-09-26 10:12 ` [PATCH 4.14 32/40] can: gs_usb: gs_can_open(): fix race dev->can.state condition Greg Kroah-Hartman
2022-09-26 10:12 ` [PATCH 4.14 33/40] perf kcore_copy: Do not check /proc/modules is unchanged Greg Kroah-Hartman
2022-09-26 10:12 ` [PATCH 4.14 34/40] net: sunhme: Fix packet reception for len < RX_COPY_THRESHOLD Greg Kroah-Hartman
2022-09-26 10:12 ` [PATCH 4.14 35/40] serial: Create uart_xmit_advance() Greg Kroah-Hartman
2022-09-26 10:12 ` [PATCH 4.14 36/40] serial: tegra: Use uart_xmit_advance(), fixes icount.tx accounting Greg Kroah-Hartman
2022-09-26 10:12 ` [PATCH 4.14 37/40] s390/dasd: fix Oops in dasd_alias_get_start_dev due to missing pavgroup Greg Kroah-Hartman
2022-09-26 10:12 ` [PATCH 4.14 38/40] Drivers: hv: Never allocate anything besides framebuffer from framebuffer memory region Greg Kroah-Hartman
2022-09-26 10:12 ` [PATCH 4.14 39/40] ext4: make directory inode spreading reflect flexbg size Greg Kroah-Hartman
2022-09-26 10:12 ` [PATCH 4.14 40/40] media: em28xx: initialize refcount before kref_get Greg Kroah-Hartman

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