brcm2708: update to latest patches from RPi foundation

[openwrt/staging/dedeckeh.git] / target / linux / brcm2708 / patches-4.19 / 950-0800-adds-LED-OFF-feature-to-HiFiBerry-DAC-DAC-PRO-sound-.patch

diff --git a/target/linux/brcm2708/patches-4.19/950-0800-adds-LED-OFF-feature-to-HiFiBerry-DAC-DAC-PRO-sound-.patch b/target/linux/brcm2708/patches-4.19/950-0800-adds-LED-OFF-feature-to-HiFiBerry-DAC-DAC-PRO-sound-.patch
new file mode 100644 (file)
index 0000000..68763fe
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.19/950-0800-adds-LED-OFF-feature-to-HiFiBerry-DAC-DAC-PRO-sound-.patch
@@ -0,0 +1,77 @@
+From 5eccee0e620b799558d89ebee29280116ad37e4f Mon Sep 17 00:00:00 2001
+From: j-schambacher <joerg@i2audio.com>
+Date: Mon, 27 Jan 2020 20:58:24 +0100
+Subject: [PATCH] adds LED OFF feature to HiFiBerry DAC+/DAC+PRO sound
+ cards
+
+This adds a DT overlay parameter 'leds_off' which allows
+to switch off the onboard activity LEDs at all times
+which has been requested by some users.
+
+Signed-off-by: Joerg Schambacher <joerg@i2audio.com>
+---
+ arch/arm/boot/dts/overlays/README                      |  2 ++
+ .../boot/dts/overlays/hifiberry-dacplus-overlay.dts    |  1 +
+ sound/soc/bcm/hifiberry_dacplus.c                      | 10 +++++++++-
+ 3 files changed, 12 insertions(+), 1 deletion(-)
+
+--- a/arch/arm/boot/dts/overlays/README
++++ b/arch/arm/boot/dts/overlays/README
+@@ -906,6 +906,8 @@ Params: 24db_digital_gain       Allow ga
+                                 that does not result in clipping/distortion!)
+         slave                   Force DAC+ Pro into slave mode, using Pi as
+                                 master for bit clock and frame clock.
++        leds_off                If set to 'true' the onboard indicator LEDs
++                                are switched off at all times.
+ 
+ 
+ Name:   hifiberry-dacplusadc
+--- a/arch/arm/boot/dts/overlays/hifiberry-dacplus-overlay.dts
++++ b/arch/arm/boot/dts/overlays/hifiberry-dacplus-overlay.dts
+@@ -55,5 +55,6 @@
+               24db_digital_gain =
+                       <&hifiberry_dacplus>,"hifiberry,24db_digital_gain?";
+               slave = <&hifiberry_dacplus>,"hifiberry-dacplus,slave?";
++              leds_off = <&hifiberry_dacplus>,"hifiberry-dacplus,leds_off?";
+       };
+ };
+--- a/sound/soc/bcm/hifiberry_dacplus.c
++++ b/sound/soc/bcm/hifiberry_dacplus.c
+@@ -50,6 +50,7 @@ struct pcm512x_priv {
+ static bool slave;
+ static bool snd_rpi_hifiberry_is_dacpro;
+ static bool digital_gain_0db_limit = true;
++static bool leds_off;
+ 
+ static void snd_rpi_hifiberry_dacplus_select_clk(struct snd_soc_component *component,
+       int clk_id)
+@@ -171,7 +172,10 @@ static int snd_rpi_hifiberry_dacplus_ini
+ 
+       snd_soc_component_update_bits(component, PCM512x_GPIO_EN, 0x08, 0x08);
+       snd_soc_component_update_bits(component, PCM512x_GPIO_OUTPUT_4, 0x0f, 0x02);
+-      snd_soc_component_update_bits(component, PCM512x_GPIO_CONTROL_1, 0x08, 0x08);
++      if (leds_off)
++              snd_soc_component_update_bits(component, PCM512x_GPIO_CONTROL_1, 0x08, 0x00);
++      else
++              snd_soc_component_update_bits(component, PCM512x_GPIO_CONTROL_1, 0x08, 0x08);
+ 
+       if (digital_gain_0db_limit)
+       {
+@@ -251,6 +255,8 @@ static int snd_rpi_hifiberry_dacplus_sta
+       struct snd_soc_pcm_runtime *rtd = substream->private_data;
+       struct snd_soc_component *component = rtd->codec_dai->component;
+ 
++      if (leds_off)
++              return 0;
+       snd_soc_component_update_bits(component, PCM512x_GPIO_CONTROL_1, 0x08, 0x08);
+       return 0;
+ }
+@@ -319,6 +325,8 @@ static int snd_rpi_hifiberry_dacplus_pro
+                       pdev->dev.of_node, "hifiberry,24db_digital_gain");
+               slave = of_property_read_bool(pdev->dev.of_node,
+                                               "hifiberry-dacplus,slave");
++              leds_off = of_property_read_bool(pdev->dev.of_node,
++                                              "hifiberry-dacplus,leds_off");
+       }
+ 
+       ret = devm_snd_soc_register_card(&pdev->dev,