brcm2708: organize kernel patches

[openwrt/staging/dedeckeh.git] / target / linux / brcm2708 / patches-4.19 / 950-0234-staging-bcm2835-audio-Drop-DT-dependency.patch

diff --git a/target/linux/brcm2708/patches-4.19/950-0234-staging-bcm2835-audio-Drop-DT-dependency.patch b/target/linux/brcm2708/patches-4.19/950-0234-staging-bcm2835-audio-Drop-DT-dependency.patch
deleted file mode 100644 (file)
index 62b4282..0000000
--- a/target/linux/brcm2708/patches-4.19/950-0234-staging-bcm2835-audio-Drop-DT-dependency.patch
+++ /dev/null
@@ -1,116 +0,0 @@
-From ba833c9b912d2ca6fe23d700c4bd6f61742d5e04 Mon Sep 17 00:00:00 2001
-From: Stefan Wahren <stefan.wahren@i2se.com>
-Date: Thu, 18 Oct 2018 19:54:01 +0200
-Subject: [PATCH 234/806] staging: bcm2835-audio: Drop DT dependency
-
-Just like the bcm2835-video make this a platform driver which is probed
-by vchiq. In order to change the number of channels use a module
-parameter instead, but use the maximum as default.
-
-Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
----
- .../vc04_services/bcm2835-audio/bcm2835.c     | 41 +++++++++----------
- 1 file changed, 19 insertions(+), 22 deletions(-)
-
---- a/drivers/staging/vc04_services/bcm2835-audio/bcm2835.c
-+++ b/drivers/staging/vc04_services/bcm2835-audio/bcm2835.c
-@@ -4,15 +4,17 @@
- #include <linux/platform_device.h>
- 
- #include <linux/init.h>
-+#include <linux/dma-mapping.h>
-+#include <linux/of_device.h>
- #include <linux/slab.h>
- #include <linux/module.h>
--#include <linux/of.h>
- 
- #include "bcm2835.h"
- 
- static bool enable_hdmi;
- static bool enable_headphones;
- static bool enable_compat_alsa = true;
-+static int num_channels = MAX_SUBSTREAMS;
- 
- module_param(enable_hdmi, bool, 0444);
- MODULE_PARM_DESC(enable_hdmi, "Enables HDMI virtual audio device");
-@@ -21,6 +23,8 @@ MODULE_PARM_DESC(enable_headphones, "Ena
- module_param(enable_compat_alsa, bool, 0444);
- MODULE_PARM_DESC(enable_compat_alsa,
-                "Enables ALSA compatibility virtual audio device");
-+module_param(num_channels, int, 0644);
-+MODULE_PARM_DESC(num_channels, "Number of audio channels (default: 8)");
- 
- static void snd_devm_unregister_child(struct device *dev, void *res)
- {
-@@ -407,31 +411,30 @@ static int snd_add_child_devices(struct
-       return 0;
- }
- 
--static int snd_bcm2835_alsa_probe_dt(struct platform_device *pdev)
-+static int snd_bcm2835_alsa_probe(struct platform_device *pdev)
- {
-       struct device *dev = &pdev->dev;
--      u32 numchans;
-       int err;
- 
--      err = of_property_read_u32(dev->of_node, "brcm,pwm-channels",
--                                 &numchans);
--      if (err) {
--              dev_err(dev, "Failed to get DT property 'brcm,pwm-channels'");
--              return err;
-+      if (num_channels <= 0 || num_channels > MAX_SUBSTREAMS) {
-+              num_channels = MAX_SUBSTREAMS;
-+              dev_warn(dev, "Illegal num_channels value, will use %u\n",
-+                       num_channels);
-       }
- 
--      if (numchans == 0 || numchans > MAX_SUBSTREAMS) {
--              numchans = MAX_SUBSTREAMS;
--              dev_warn(dev,
--                       "Illegal 'brcm,pwm-channels' value, will use %u\n",
--                       numchans);
-+      dev->coherent_dma_mask = DMA_BIT_MASK(32);
-+      dev->dma_mask = &dev->coherent_dma_mask;
-+      err = of_dma_configure(dev, NULL, true);
-+      if (err) {
-+              dev_err(dev, "Unable to setup DMA: %d\n", err);
-+              return err;
-       }
- 
-       err = bcm2835_devm_add_vchi_ctx(dev);
-       if (err)
-               return err;
- 
--      err = snd_add_child_devices(dev, numchans);
-+      err = snd_add_child_devices(dev, num_channels);
-       if (err)
-               return err;
- 
-@@ -453,21 +456,14 @@ static int snd_bcm2835_alsa_resume(struc
- 
- #endif
- 
--static const struct of_device_id snd_bcm2835_of_match_table[] = {
--      { .compatible = "brcm,bcm2835-audio",},
--      {},
--};
--MODULE_DEVICE_TABLE(of, snd_bcm2835_of_match_table);
--
- static struct platform_driver bcm2835_alsa0_driver = {
--      .probe = snd_bcm2835_alsa_probe_dt,
-+      .probe = snd_bcm2835_alsa_probe,
- #ifdef CONFIG_PM
-       .suspend = snd_bcm2835_alsa_suspend,
-       .resume = snd_bcm2835_alsa_resume,
- #endif
-       .driver = {
-               .name = "bcm2835_audio",
--              .of_match_table = snd_bcm2835_of_match_table,
-       },
- };
- module_platform_driver(bcm2835_alsa0_driver);
-@@ -475,3 +471,4 @@ module_platform_driver(bcm2835_alsa0_dri
- MODULE_AUTHOR("Dom Cobley");
- MODULE_DESCRIPTION("Alsa driver for BCM2835 chip");
- MODULE_LICENSE("GPL");
-+MODULE_ALIAS("platform:bcm2835_audio");