brcm2708: rename target to bcm27xx
[openwrt/openwrt.git] / target / linux / brcm2708 / patches-4.19 / 950-0187-rpi-wm8804-soundcard-configure-wm8804-clocks-only-on.patch
diff --git a/target/linux/brcm2708/patches-4.19/950-0187-rpi-wm8804-soundcard-configure-wm8804-clocks-only-on.patch b/target/linux/brcm2708/patches-4.19/950-0187-rpi-wm8804-soundcard-configure-wm8804-clocks-only-on.patch
deleted file mode 100644 (file)
index 7edd25f..0000000
+++ /dev/null
@@ -1,46 +0,0 @@
-From f6b133a056e8fde7f4707e2874e204c7d5d671a2 Mon Sep 17 00:00:00 2001
-From: Matthias Reichl <hias@horus.com>
-Date: Sun, 18 Nov 2018 15:32:28 +0100
-Subject: [PATCH] rpi-wm8804-soundcard: configure wm8804 clocks only on
- rate change
-
-This should avoid clicks when stopping and immediately afterwards
-starting a stream with the same samplerate as before.
-
-Signed-off-by: Matthias Reichl <hias@horus.com>
----
- sound/soc/bcm/rpi-wm8804-soundcard.c | 9 +++++++++
- 1 file changed, 9 insertions(+)
-
---- a/sound/soc/bcm/rpi-wm8804-soundcard.c
-+++ b/sound/soc/bcm/rpi-wm8804-soundcard.c
-@@ -64,6 +64,7 @@ struct snd_rpi_wm8804_drvdata {
- static struct gpio_desc *snd_clk44gpio;
- static struct gpio_desc *snd_clk48gpio;
-+static int wm8804_samplerate = 0;
- #define CLK_44EN_RATE 22579200UL
- #define CLK_48EN_RATE 24576000UL
-@@ -117,6 +118,12 @@ static int snd_rpi_wm8804_hw_params(stru
-       struct wm8804_clk_cfg clk_cfg;
-       int samplerate = params_rate(params);
-+      if (samplerate == wm8804_samplerate)
-+              return 0;
-+
-+      /* clear until all clocks are setup properly */
-+      wm8804_samplerate = 0;
-+
-       snd_rpi_wm8804_clk_cfg(samplerate, &clk_cfg);
-       pr_debug("%s samplerate: %d mclk_freq: %u mclk_div: %u sysclk: %u\n",
-@@ -163,6 +170,8 @@ static int snd_rpi_wm8804_hw_params(stru
-               return ret;
-       }
-+      wm8804_samplerate = samplerate;
-+
-       /* set sampling frequency status bits */
-       snd_soc_component_update_bits(component, WM8804_SPDTX4, 0x0f,
-                       sampling_freq);