target/linux/bmips/patches-5.10/022-v5.12-spi-bcm63xx-hsspi-fix-pm_runtime.patch

   1 From 216e8e80057a9f0b6366327881acf88eaf9f1fd4 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 16:18:51 +0100
   4 Subject: [PATCH 2/2] spi: bcm63xx-hsspi: 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/20210223151851.4110-3-noltari@gmail.com
  15 Signed-off-by: Mark Brown <broonie@kernel.org>
  16 ---
  17  drivers/spi/spi-bcm63xx-hsspi.c | 7 ++++++-
  18  1 file changed, 6 insertions(+), 1 deletion(-)
  19
  20 --- a/drivers/spi/spi-bcm63xx-hsspi.c
  21 +++ b/drivers/spi/spi-bcm63xx-hsspi.c
  22 @@ -21,6 +21,7 @@
  23  #include <linux/mutex.h>
  24  #include <linux/of.h>
  25  #include <linux/reset.h>
  26 +#include <linux/pm_runtime.h>
  27
  28  #define HSSPI_GLOBAL_CTRL_REG                  0x0
  29  #define GLOBAL_CTRL_CS_POLARITY_SHIFT          0
  30 @@ -439,13 +440,17 @@ static int bcm63xx_hsspi_probe(struct pl
  31         if (ret)
  32                 goto out_put_master;
  33
  34 +       pm_runtime_enable(&pdev->dev);
  35 +
  36         /* register and we are done */
  37         ret = devm_spi_register_master(dev, master);
  38         if (ret)
  39 -               goto out_put_master;
  40 +               goto out_pm_disable;
  41
  42         return 0;
  43
  44 +out_pm_disable:
  45 +       pm_runtime_disable(&pdev->dev);
  46  out_put_master:
  47         spi_master_put(master);
  48  out_disable_pll_clk: