target/linux/bmips/patches-5.10/041-v5.12-spi-bcm63xx-spi-fix-pm_runtime.patch

   1 From 73ae625da5c36300fccd809738e7c68f49ebce35 Mon Sep 17 00:00:00 2001
   2 From: =?UTF-8?q?=C3=81lvaro=20Fern=C3=A1ndez=20Rojas?= <noltari@gmail.com>
   3 Date: Tue, 23 Feb 2021 16:18:50 +0100
   4 Subject: [PATCH 1/2] spi: bcm63xx-spi: fix pm_runtime
   5 MIME-Version: 1.0
   6 Content-Type: text/plain; charset=UTF-8
   7 Content-Transfer-Encoding: 8bit
   8
   9 The driver sets auto_runtime_pm to true, but it doesn't call
  10 pm_runtime_enable(), which results in "Failed to power device" when PM support
  11 is enabled.
  12
  13 Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
  14 Link: https://lore.kernel.org/r/20210223151851.4110-2-noltari@gmail.com
  15 Signed-off-by: Mark Brown <broonie@kernel.org>
  16 ---
  17  drivers/spi/spi-bcm63xx.c | 6 +++++-
  18  1 file changed, 5 insertions(+), 1 deletion(-)
  19
  20 --- a/drivers/spi/spi-bcm63xx.c
  21 +++ b/drivers/spi/spi-bcm63xx.c
  22 @@ -593,11 +593,13 @@ static int bcm63xx_spi_probe(struct plat
  23
  24         bcm_spi_writeb(bs, SPI_INTR_CLEAR_ALL, SPI_INT_STATUS);
  25
  26 +       pm_runtime_enable(&pdev->dev);
  27 +
  28         /* register and we are done */
  29         ret = devm_spi_register_master(dev, master);
  30         if (ret) {
  31                 dev_err(dev, "spi register failed\n");
  32 -               goto out_clk_disable;
  33 +               goto out_pm_disable;
  34         }
  35
  36         dev_info(dev, "at %pr (irq %d, FIFOs size %d)\n",
  37 @@ -605,6 +607,8 @@ static int bcm63xx_spi_probe(struct plat
  38
  39         return 0;
  40
  41 +out_pm_disable:
  42 +       pm_runtime_disable(&pdev->dev);
  43  out_clk_disable:
  44         clk_disable_unprepare(clk);
  45  out_err: