target/linux/brcm2708/patches-4.4/0254-clk-bcm2835-Add-PWM-clock-support.patch

   1 From 356488d8d56d35fe7316d829d1bfc7a7ec362d6c Mon Sep 17 00:00:00 2001
   2 From: Remi Pommarel <repk@triplefau.lt>
   3 Date: Sun, 6 Dec 2015 17:22:48 +0100
   4 Subject: [PATCH 254/304] clk: bcm2835: Add PWM clock support
   5
   6 Register the pwm clock for bcm2835.
   7
   8 Signed-off-by: Remi Pommarel <repk@triplefau.lt>
   9 Reviewed-by: Eric Anholt <eric@anholt.net>
  10 Signed-off-by: Michael Turquette <mturquette@baylibre.com>
  11 (cherry picked from commit cfbab8fbab9c330aca963095a439c451ac97c0dd)
  12 ---
  13  drivers/clk/bcm/clk-bcm2835.c       | 13 +++++++++++++
  14  include/dt-bindings/clock/bcm2835.h |  3 ++-
  15  2 files changed, 15 insertions(+), 1 deletion(-)
  16
  17 --- a/drivers/clk/bcm/clk-bcm2835.c
  18 +++ b/drivers/clk/bcm/clk-bcm2835.c
  19 @@ -807,6 +807,16 @@ static const struct bcm2835_clock_data b
  20         .frac_bits = 8,
  21  };
  22
  23 +static const struct bcm2835_clock_data bcm2835_clock_pwm_data = {
  24 +       .name = "pwm",
  25 +       .num_mux_parents = ARRAY_SIZE(bcm2835_clock_per_parents),
  26 +       .parents = bcm2835_clock_per_parents,
  27 +       .ctl_reg = CM_PWMCTL,
  28 +       .div_reg = CM_PWMDIV,
  29 +       .int_bits = 12,
  30 +       .frac_bits = 12,
  31 +};
  32 +
  33  struct bcm2835_pll {
  34         struct clk_hw hw;
  35         struct bcm2835_cprman *cprman;
  36 @@ -1586,6 +1596,9 @@ static int bcm2835_clk_probe(struct plat
  37                                   cprman->regs + CM_PERIICTL, CM_GATE_BIT,
  38                                   0, &cprman->regs_lock);
  39
  40 +       clks[BCM2835_CLOCK_PWM] =
  41 +               bcm2835_register_clock(cprman, &bcm2835_clock_pwm_data);
  42 +
  43         return of_clk_add_provider(dev->of_node, of_clk_src_onecell_get,
  44                                    &cprman->onecell);
  45  }
  46 --- a/include/dt-bindings/clock/bcm2835.h
  47 +++ b/include/dt-bindings/clock/bcm2835.h
  48 @@ -43,5 +43,6 @@
  49  #define BCM2835_CLOCK_TSENS            27
  50  #define BCM2835_CLOCK_EMMC             28
  51  #define BCM2835_CLOCK_PERI_IMAGE       29
  52 +#define BCM2835_CLOCK_PWM              30
  53
  54 -#define BCM2835_CLOCK_COUNT            30
  55 +#define BCM2835_CLOCK_COUNT            31