target/linux/layerscape/patches-5.4/801-audio-0020-ASoC-fsl_-e-sai-introduce-shared-interrupt-DT-flag-p.patch

   1 From a22b10e2c273308f547c5ad96e3820f312058ae7 Mon Sep 17 00:00:00 2001
   2 From: Viorel Suman <viorel.suman@nxp.com>
   3 Date: Sun, 30 Apr 2017 12:41:33 +0300
   4 Subject: [PATCH] ASoC: fsl_(e)sai: introduce "shared-interrupt" DT flag (part
   5  2)
   6
   7 SAI & ESAI interfaces may share the same interrupt with EDMA,
   8 so that we need a flag to trigger proper shared interrupt
   9 handling. For compatibility the same DT flag, "shared-interrupt",
  10 is introduced as the one used in drivers/dma/fsl-edma-v3.c.
  11
  12 Signed-off-by: Viorel Suman <viorel.suman@nxp.com>
  13 [ Aisheng: split easi changes ]
  14 Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
  15 ---
  16  sound/soc/fsl/fsl_sai.c | 8 +++++++-
  17  1 file changed, 7 insertions(+), 1 deletion(-)
  18
  19 --- a/sound/soc/fsl/fsl_sai.c
  20 +++ b/sound/soc/fsl/fsl_sai.c
  21 @@ -910,6 +910,7 @@ static int fsl_sai_probe(struct platform
  22         char tmp[8];
  23         int irq, ret, i;
  24         int index;
  25 +       unsigned long irqflag = 0;
  26
  27         sai = devm_kzalloc(&pdev->dev, sizeof(*sai), GFP_KERNEL);
  28         if (!sai)
  29 @@ -979,7 +980,12 @@ static int fsl_sai_probe(struct platform
  30                 return irq;
  31         }
  32
  33 -       ret = devm_request_irq(&pdev->dev, irq, fsl_sai_isr, 0, np->name, sai);
  34 +       /* SAI shared interrupt */
  35 +       if (of_property_read_bool(np, "shared-interrupt"))
  36 +               irqflag = IRQF_SHARED;
  37 +
  38 +       ret = devm_request_irq(&pdev->dev, irq, fsl_sai_isr, irqflag,
  39 +                               np->name, sai);
  40         if (ret) {
  41                 dev_err(&pdev->dev, "failed to claim irq %u\n", irq);
  42                 return ret;