target/linux/layerscape/patches-5.4/808-i2c-0002-MLK-10893-i2c-imx-add-irqf_no_suspend.patch

   1 From 0d7b6f59e736f6f7389e5346a518f2dc009bbf89 Mon Sep 17 00:00:00 2001
   2 From: gaopan <b54642@freescale.com>
   3 Date: Tue, 12 May 2015 18:25:29 +0800
   4 Subject: [PATCH] MLK-10893: i2c: imx: add irqf_no_suspend
   5
   6 The i2c irq is masked when pcie starts a i2c transfer process
   7 during noirq suspend stage. As a result, i2c transfer fails.
   8 To solve the problem, IRQF_NO_SUSPEND is added to i2c bus.
   9
  10 Signed-off-by: Gao Pan <b54642@freescale.com>
  11 Signed-off-by: Fugang Duan <B38611@freescale.com>
  12 Signed-off-by: Vipul Kumar <vipul_kumar@mentor.com>
  13 (cherry picked from commit d21259d913effcad322e30d389323e72a0f9709d)
  14 ---
  15  drivers/i2c/busses/i2c-imx.c | 3 ++-
  16  1 file changed, 2 insertions(+), 1 deletion(-)
  17
  18 --- a/drivers/i2c/busses/i2c-imx.c
  19 +++ b/drivers/i2c/busses/i2c-imx.c
  20 @@ -1113,7 +1113,8 @@ static int i2c_imx_probe(struct platform
  21         }
  22
  23         /* Request IRQ */
  24 -       ret = devm_request_irq(&pdev->dev, irq, i2c_imx_isr, IRQF_SHARED,
  25 +       ret = devm_request_irq(&pdev->dev, irq, i2c_imx_isr,
  26 +                               IRQF_SHARED | IRQF_NO_SUSPEND,
  27                                 pdev->name, i2c_imx);
  28         if (ret) {
  29                 dev_err(&pdev->dev, "can't claim irq %d\n", irq);