Openwrt/target/linux/layerscape/patches-5.4/808-i2c-0002-MLK-10893-i2c-imx-add-irqf_no_suspend.patch
John Audia afd4bf08bc kernel: bump 5.4 to 5.4.83
Manually merged:
  layerscape/808-i2c-0011-i2c-imx-support-slave-mode-for-imx-I2C-driver.patch
  layerscape/808-i2c-0012-i2c-imx-correct-code-of-errata-A-010650-for-layersca.patch

Remaining modifications made by update_kernel.sh

Build system: x86_64
Build-tested: ipq806x/R7800, ath79/generic, bcm27xx/bcm2711, x86/64 [*],
              ramips/mt7621 [*], ath79/tiny [*], ipq40xx [*], octeon [*],
              realtek [*]
Run-tested: ipq806x/R7800, ramips/mt7621 [*], octeon [*], realtek [*]

No dmesg regressions, everything functional

Signed-off-by: John Audia <graysky@archlinux.us>
Tested-by: Stijn Segers <foss@volatilesystems.org> [*]
2020-12-15 12:05:26 +01:00

30 lines
1.1 KiB
Diff

From 0d7b6f59e736f6f7389e5346a518f2dc009bbf89 Mon Sep 17 00:00:00 2001
From: gaopan <b54642@freescale.com>
Date: Tue, 12 May 2015 18:25:29 +0800
Subject: [PATCH] MLK-10893: i2c: imx: add irqf_no_suspend
The i2c irq is masked when pcie starts a i2c transfer process
during noirq suspend stage. As a result, i2c transfer fails.
To solve the problem, IRQF_NO_SUSPEND is added to i2c bus.
Signed-off-by: Gao Pan <b54642@freescale.com>
Signed-off-by: Fugang Duan <B38611@freescale.com>
Signed-off-by: Vipul Kumar <vipul_kumar@mentor.com>
(cherry picked from commit d21259d913effcad322e30d389323e72a0f9709d)
---
drivers/i2c/busses/i2c-imx.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/i2c/busses/i2c-imx.c
+++ b/drivers/i2c/busses/i2c-imx.c
@@ -1159,7 +1159,8 @@ static int i2c_imx_probe(struct platform
goto rpm_disable;
/* Request IRQ */
- ret = request_threaded_irq(irq, i2c_imx_isr, NULL, IRQF_SHARED,
+ ret = request_threaded_irq(irq, i2c_imx_isr, NULL,
+ IRQF_SHARED | IRQF_NO_SUSPEND,
pdev->name, i2c_imx);
if (ret) {
dev_err(&pdev->dev, "can't claim irq %d\n", irq);