bcm27xx: remove linux 5.10 compatibility

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>

1 files changed, 0 insertions, 325 deletions

diff --git a/target/linux/bcm27xx/patches-5.10/950-0723-ASoC-bcm-Add-chipdip-dac-driver.patch b/target/linux/bcm27xx/patches-5.10/950-0723-ASoC-bcm-Add-chipdip-dac-driver.patch
deleted file mode 100644
index 25dbc74d20..0000000000
--- a/target/linux/bcm27xx/patches-5.10/950-0723-ASoC-bcm-Add-chipdip-dac-driver.patch
+++ /dev/null
@@ -1,325 +0,0 @@
-From e17c3e2ccb04657ca00984477854a6a700fef01d Mon Sep 17 00:00:00 2001
-From: "chipdip.lab" <43340836+chipdipru@users.noreply.github.com>
-Date: Mon, 26 Jul 2021 14:45:59 +0300
-Subject: [PATCH] ASoC: bcm: Add chipdip-dac driver
-
-Driver chipdip-dac.c added into sound/soc/bcm/, files
-sound/soc/bcm/Kconfig and sound/soc/bcm/Makefile updated.
-
-Signed-off-by: Evgenij Sapunov <evgenij.sapunov@chipdip.ru>
----
- sound/soc/bcm/Kconfig       |   6 +
- sound/soc/bcm/Makefile      |   3 +-
- sound/soc/bcm/chipdip-dac.c | 275 ++++++++++++++++++++++++++++++++++++
- 3 files changed, 283 insertions(+), 1 deletion(-)
- create mode 100644 sound/soc/bcm/chipdip-dac.c
-
---- a/sound/soc/bcm/Kconfig
-+++ b/sound/soc/bcm/Kconfig
-@@ -27,6 +27,12 @@ config SND_BCM63XX_I2S_WHISTLER
- 
- 	  If you don't know what to do here, say N
- 
-+config SND_BCM2708_SOC_CHIPDIP_DAC
-+         tristate "Support for the ChipDip DAC"
-+         depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
-+         help
-+          Say Y or M if you want to add support for the ChipDip DAC soundcard
-+
- config SND_BCM2708_SOC_GOOGLEVOICEHAT_SOUNDCARD
- 	tristate "Support for Google voiceHAT soundcard"
- 	depends on SND_BCM2708_SOC_I2S || SND_BCM2835_SOC_I2S
---- a/sound/soc/bcm/Makefile
-+++ b/sound/soc/bcm/Makefile
-@@ -47,6 +47,7 @@ snd-soc-fe-pi-audio-objs := fe-pi-audio.
- snd-soc-rpi-simple-soundcard-objs := rpi-simple-soundcard.o
- snd-soc-rpi-wm8804-soundcard-objs := rpi-wm8804-soundcard.o
- snd-soc-pifi-40-objs := pifi-40.o
-+snd-soc-chipdip-dac-objs := chipdip-dac.o
- 
- obj-$(CONFIG_SND_BCM2708_SOC_GOOGLEVOICEHAT_SOUNDCARD)  += snd-soc-googlevoicehat-codec.o
- obj-$(CONFIG_SND_BCM2708_SOC_HIFIBERRY_DACPLUS) += snd-soc-hifiberry-dacplus.o
-@@ -78,4 +79,4 @@ obj-$(CONFIG_SND_BCM2708_SOC_FE_PI_AUDIO
- obj-$(CONFIG_SND_RPI_SIMPLE_SOUNDCARD) += snd-soc-rpi-simple-soundcard.o
- obj-$(CONFIG_SND_RPI_WM8804_SOUNDCARD) += snd-soc-rpi-wm8804-soundcard.o
- obj-$(CONFIG_SND_BCM2708_SOC_PIFI_40) += snd-soc-pifi-40.o
--
-+obj-$(CONFIG_SND_BCM2708_SOC_CHIPDIP_DAC) += snd-soc-chipdip-dac.o
---- /dev/null
-+++ b/sound/soc/bcm/chipdip-dac.c
-@@ -0,0 +1,275 @@
-+/*
-+ * ASoC Driver for ChipDip DAC
-+ *
-+ * Author:	Evgenij Sapunov
-+ *		Copyright 2021
-+ *		based on code by Milan Neskovic <info@justboom.co>
-+ *		based on code by Jaikumar <jaikumar@cem-solutions.net>
-+ *
-+ * Thanks to Phil Elwell (pelwell) for help.
-+ *
-+ * This program is free software; you can redistribute it and/or
-+ * modify it under the terms of the GNU General Public License
-+ * version 2 as published by the Free Software Foundation.
-+ *
-+ * This program is distributed in the hope that it will be useful, but
-+ * WITHOUT ANY WARRANTY; without even the implied warranty of
-+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-+ * General Public License for more details.
-+ */
-+
-+#include <linux/module.h>
-+#include <linux/gpio/consumer.h>
-+#include <linux/platform_device.h>
-+#include <linux/delay.h>
-+
-+#include <sound/core.h>
-+#include <sound/pcm.h>
-+#include <sound/pcm_params.h>
-+#include <sound/soc.h>
-+#include <sound/jack.h>
-+
-+#define SR_BIT_0                  0 //sample rate bits
-+#define SR_BIT_1                  1
-+#define SR_BIT_2                  2
-+#define BD_BIT_0                  3 //bit depth bits
-+#define BD_BIT_1                  4
-+
-+#define SAMPLE_RATE_MASK_44_1     0
-+#define SAMPLE_RATE_MASK_48       (1 << SR_BIT_0)
-+#define SAMPLE_RATE_MASK_88_2     ((1 << SR_BIT_2) | (1 << SR_BIT_1))
-+#define SAMPLE_RATE_MASK_96       (1 << SR_BIT_1)
-+#define SAMPLE_RATE_MASK_176_4    ((1 << SR_BIT_2) | (1 << SR_BIT_1) | (1 << SR_BIT_0))
-+#define SAMPLE_RATE_MASK_192      ((1 << SR_BIT_1) | (1 << SR_BIT_0))
-+#define SAMPLE_RATE_MASK          ((1 << SR_BIT_2) | (1 << SR_BIT_1) | (1 << SR_BIT_0))
-+
-+#define BIT_DEPTH_MASK_16         0
-+#define BIT_DEPTH_MASK_24         (1 << BD_BIT_0)
-+#define BIT_DEPTH_MASK_32         (1 << BD_BIT_1)
-+#define BIT_DEPTH_MASK            ((1 << BD_BIT_1) | (1 << BD_BIT_0))
-+
-+#define MUTE_ACTIVE               0
-+#define MUTE_NOT_ACTIVE           1
-+
-+#define HW_PARAMS_GPIO_COUNT      5
-+
-+static struct gpio_desc *mute_gpio;
-+static struct gpio_desc *sdwn_gpio;
-+static struct gpio_desc *hw_params_gpios[HW_PARAMS_GPIO_COUNT];
-+static int current_width;
-+static int current_rate;
-+
-+static void snd_rpi_chipdip_dac_gpio_array_set(int value);
-+static void snd_rpi_chipdip_dac_gpio_set(struct gpio_desc *gpio_item, int value);
-+
-+static void snd_rpi_chipdip_dac_gpio_array_set(int value)
-+{
-+	int i = 0;
-+
-+	for (i = 0; i < HW_PARAMS_GPIO_COUNT; i++)
-+		snd_rpi_chipdip_dac_gpio_set(hw_params_gpios[i], ((value >> i) & 1));
-+}
-+
-+static void snd_rpi_chipdip_dac_gpio_set(struct gpio_desc *gpio_item, int value)
-+{
-+	if (gpio_item)
-+		gpiod_set_value_cansleep(gpio_item, value);
-+}
-+
-+static int snd_rpi_chipdip_dac_init(struct snd_soc_pcm_runtime *rtd)
-+{
-+	return 0;
-+}
-+
-+static int snd_rpi_chipdip_dac_hw_params(struct snd_pcm_substream *substream,
-+					 struct snd_pcm_hw_params *params)
-+{
-+	int ret = 0;
-+	int gpio_change_pending = 0;
-+	int sample_rate_state = 0;
-+	int bit_depth_state = 0;
-+	int param_value = params_width(params);
-+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
-+
-+	ret = snd_soc_dai_set_bclk_ratio(asoc_rtd_to_cpu(rtd, 0), 2 * 32);
-+
-+	if (current_width != param_value) {
-+		current_width = param_value;
-+		gpio_change_pending = 1;
-+
-+		switch (param_value) {
-+		case 16:
-+			bit_depth_state = BIT_DEPTH_MASK_16;
-+			break;
-+		case 24:
-+			bit_depth_state = BIT_DEPTH_MASK_24;
-+			break;
-+		case 32:
-+			bit_depth_state = BIT_DEPTH_MASK_32;
-+			break;
-+		default:
-+			return -EINVAL;
-+		}
-+	}
-+
-+	param_value = params_rate(params);
-+	if (current_rate != param_value) {
-+		current_rate = param_value;
-+		gpio_change_pending = 1;
-+
-+		switch (param_value) {
-+		case 44100:
-+			sample_rate_state = SAMPLE_RATE_MASK_44_1;
-+			break;
-+		case 48000:
-+			sample_rate_state = SAMPLE_RATE_MASK_48;
-+			break;
-+		case 88200:
-+			sample_rate_state = SAMPLE_RATE_MASK_88_2;
-+			break;
-+		case 96000:
-+			sample_rate_state = SAMPLE_RATE_MASK_96;
-+			break;
-+		case 176400:
-+			sample_rate_state = SAMPLE_RATE_MASK_176_4;
-+			break;
-+		case 192000:
-+			sample_rate_state = SAMPLE_RATE_MASK_192;
-+			break;
-+		default:
-+			return -EINVAL;
-+		}
-+	}
-+
-+	if (gpio_change_pending) {
-+		snd_rpi_chipdip_dac_gpio_set(mute_gpio, MUTE_ACTIVE);
-+		snd_rpi_chipdip_dac_gpio_array_set(bit_depth_state | sample_rate_state);
-+		msleep(300);
-+		snd_rpi_chipdip_dac_gpio_set(mute_gpio, MUTE_NOT_ACTIVE);
-+	}
-+
-+	return ret;
-+}
-+
-+static int snd_rpi_chipdip_dac_startup(struct snd_pcm_substream *substream)
-+{
-+	return 0;
-+}
-+
-+static void snd_rpi_chipdip_dac_shutdown(struct snd_pcm_substream *substream)
-+{
-+
-+}
-+
-+/* machine stream operations */
-+static struct snd_soc_ops snd_rpi_chipdip_dac_ops = {
-+	.hw_params = snd_rpi_chipdip_dac_hw_params,
-+	.startup = snd_rpi_chipdip_dac_startup,
-+	.shutdown = snd_rpi_chipdip_dac_shutdown,
-+};
-+
-+SND_SOC_DAILINK_DEFS(hifi,
-+	DAILINK_COMP_ARRAY(COMP_CPU("bcm2708-i2s.0")),
-+	DAILINK_COMP_ARRAY(COMP_CODEC("spdif-transmitter", "dit-hifi")),
-+	DAILINK_COMP_ARRAY(COMP_PLATFORM("bcm2708-i2s.0")));
-+
-+static struct snd_soc_dai_link snd_rpi_chipdip_dac_dai[] = {
-+{
-+	.name		= "ChipDip DAC",
-+	.stream_name	= "ChipDip DAC HiFi",
-+	.dai_fmt	= SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
-+				SND_SOC_DAIFMT_CBM_CFM,
-+	.ops		= &snd_rpi_chipdip_dac_ops,
-+	.init		= snd_rpi_chipdip_dac_init,
-+	SND_SOC_DAILINK_REG(hifi),
-+},
-+};
-+
-+/* audio machine driver */
-+static struct snd_soc_card snd_rpi_chipdip_dac = {
-+	.name         = "ChipDipDAC",
-+	.driver_name  = "ChipdipDac",
-+	.owner        = THIS_MODULE,
-+	.dai_link     = snd_rpi_chipdip_dac_dai,
-+	.num_links    = ARRAY_SIZE(snd_rpi_chipdip_dac_dai),
-+};
-+
-+static int snd_rpi_chipdip_dac_probe(struct platform_device *pdev)
-+{
-+	int ret = 0;
-+	int i = 0;
-+
-+	snd_rpi_chipdip_dac.dev = &pdev->dev;
-+
-+	if (pdev->dev.of_node) {
-+		struct device_node *i2s_node;
-+		struct snd_soc_dai_link *dai = &snd_rpi_chipdip_dac_dai[0];
-+		i2s_node = of_parse_phandle(pdev->dev.of_node,
-+					"i2s-controller", 0);
-+
-+		if (i2s_node) {
-+			dai->cpus->dai_name = NULL;
-+			dai->cpus->of_node = i2s_node;
-+			dai->platforms->name = NULL;
-+			dai->platforms->of_node = i2s_node;
-+		}
-+	}
-+
-+	hw_params_gpios[SR_BIT_0] = devm_gpiod_get_optional(&pdev->dev, "sr0", GPIOD_OUT_LOW);
-+	hw_params_gpios[SR_BIT_1] = devm_gpiod_get_optional(&pdev->dev, "sr1", GPIOD_OUT_LOW);
-+	hw_params_gpios[SR_BIT_2] = devm_gpiod_get_optional(&pdev->dev, "sr2", GPIOD_OUT_LOW);
-+	hw_params_gpios[BD_BIT_0] = devm_gpiod_get_optional(&pdev->dev, "res0", GPIOD_OUT_LOW);
-+	hw_params_gpios[BD_BIT_1] = devm_gpiod_get_optional(&pdev->dev, "res1", GPIOD_OUT_LOW);
-+	mute_gpio = devm_gpiod_get_optional(&pdev->dev, "mute", GPIOD_OUT_LOW);
-+	sdwn_gpio = devm_gpiod_get_optional(&pdev->dev, "sdwn", GPIOD_OUT_HIGH);
-+
-+	for (i = 0; i < HW_PARAMS_GPIO_COUNT; i++) {
-+		if (IS_ERR(hw_params_gpios[i])) {
-+			ret = PTR_ERR(hw_params_gpios[i]);
-+			dev_err(&pdev->dev, "failed to get hw_params gpio: %d\n", ret);
-+			return ret;
-+		}
-+	}
-+
-+	if (IS_ERR(mute_gpio)) {
-+		ret = PTR_ERR(mute_gpio);
-+		dev_err(&pdev->dev, "failed to get mute gpio: %d\n", ret);
-+		return ret;
-+	}
-+
-+	if (IS_ERR(sdwn_gpio)) {
-+		ret = PTR_ERR(sdwn_gpio);
-+		dev_err(&pdev->dev, "failed to get sdwn gpio: %d\n", ret);
-+		return ret;
-+	}
-+
-+	snd_rpi_chipdip_dac_gpio_set(sdwn_gpio, 1);
-+
-+	ret = devm_snd_soc_register_card(&pdev->dev, &snd_rpi_chipdip_dac);
-+	if (ret && ret != -EPROBE_DEFER)
-+		dev_err(&pdev->dev,
-+			"snd_soc_register_card() failed: %d\n", ret);
-+
-+	return ret;
-+}
-+
-+static const struct of_device_id snd_rpi_chipdip_dac_of_match[] = {
-+	{ .compatible = "chipdip,chipdip-dac", },
-+	{},
-+};
-+MODULE_DEVICE_TABLE(of, snd_rpi_chipdip_dac_of_match);
-+
-+static struct platform_driver snd_rpi_chipdip_dac_driver = {
-+	.driver = {
-+		.name   = "snd-rpi-chipdip-dac",
-+		.owner  = THIS_MODULE,
-+		.of_match_table = snd_rpi_chipdip_dac_of_match,
-+	},
-+	.probe          = snd_rpi_chipdip_dac_probe,
-+};
-+
-+module_platform_driver(snd_rpi_chipdip_dac_driver);
-+
-+MODULE_AUTHOR("Evgenij Sapunov <evgenij.sapunov@chipdip.ru>");
-+MODULE_DESCRIPTION("ASoC Driver for ChipDip DAC");
-+MODULE_LICENSE("GPL v2");