<p>Daniel Kurtz would like Daniel Kurtz to <strong>review</strong> this change.</p><p><a href="https://review.coreboot.org/23659">View Change</a></p><pre style="font-family: monospace,monospace; white-space: pre-wrap;">drivers/adau7002: Add driver for handling ADAU7002<br><br>The ADAU7002 is a family of Stereo PDM-to-I2S/TDM conversion ICs from<br>Analog Devices. On some boards they are a used to convert a PDM audio<br>data stream from a DMIC to an I2S signal.<br><br>Add a driver for populating ACPI table entries for this part.<br><br>BUG=b:72121803<br>TEST=With grunt audio kernel patches, "aplay -l" shows playback devices:<br> **** List of PLAYBACK Hardware Devices ****<br> card 0: acpd7219m98357 [acpd7219m98357], device 0: Playback da7219-hifi-0 []<br> Subdevices: 1/1<br> Subdevice #0: subdevice #0<br> card 0: acpd7219m98357 [acpd7219m98357], device 2: HiFi Playback HiFi-2 []<br> Subdevices: 1/1<br> Subdevice #0: subdevice #0<br><br>Change-Id: I2b64c8e1cbc0a68984482a7d496f8c4498cb6cbe<br>Signed-off-by: Daniel Kurtz <djkurtz@chromium.org><br>---<br>A src/drivers/generic/adau7002/Kconfig<br>A src/drivers/generic/adau7002/Makefile.inc<br>A src/drivers/generic/adau7002/adau7002.c<br>A src/drivers/generic/adau7002/chip.h<br>4 files changed, 83 insertions(+), 0 deletions(-)<br><br></pre><pre style="font-family: monospace,monospace; white-space: pre-wrap;">git pull ssh://review.coreboot.org:29418/coreboot refs/changes/59/23659/1</pre><pre style="font-family: monospace,monospace; white-space: pre-wrap;"><span>diff --git a/src/drivers/generic/adau7002/Kconfig b/src/drivers/generic/adau7002/Kconfig</span><br><span>new file mode 100644</span><br><span>index 0000000..b981a30</span><br><span>--- /dev/null</span><br><span>+++ b/src/drivers/generic/adau7002/Kconfig</span><br><span>@@ -0,0 +1,2 @@</span><br><span style="color: hsl(120, 100%, 40%);">+config DRIVERS_GENERIC_ADAU7002</span><br><span style="color: hsl(120, 100%, 40%);">+ bool</span><br><span>diff --git a/src/drivers/generic/adau7002/Makefile.inc b/src/drivers/generic/adau7002/Makefile.inc</span><br><span>new file mode 100644</span><br><span>index 0000000..b2f7dfe</span><br><span>--- /dev/null</span><br><span>+++ b/src/drivers/generic/adau7002/Makefile.inc</span><br><span>@@ -0,0 +1 @@</span><br><span style="color: hsl(120, 100%, 40%);">+ramstage-$(CONFIG_DRIVERS_GENERIC_ADAU7002) += adau7002.c</span><br><span>diff --git a/src/drivers/generic/adau7002/adau7002.c b/src/drivers/generic/adau7002/adau7002.c</span><br><span>new file mode 100644</span><br><span>index 0000000..17950f0</span><br><span>--- /dev/null</span><br><span>+++ b/src/drivers/generic/adau7002/adau7002.c</span><br><span>@@ -0,0 +1,76 @@</span><br><span style="color: hsl(120, 100%, 40%);">+/*</span><br><span style="color: hsl(120, 100%, 40%);">+ * This file is part of the coreboot project.</span><br><span style="color: hsl(120, 100%, 40%);">+ *</span><br><span style="color: hsl(120, 100%, 40%);">+ * Copyright 2018 Google Inc.</span><br><span style="color: hsl(120, 100%, 40%);">+ *</span><br><span style="color: hsl(120, 100%, 40%);">+ * This program is free software; you can redistribute it and/or modify</span><br><span style="color: hsl(120, 100%, 40%);">+ * it under the terms of the GNU General Public License as published by</span><br><span style="color: hsl(120, 100%, 40%);">+ * the Free Software Foundation; version 2 of the License.</span><br><span style="color: hsl(120, 100%, 40%);">+ *</span><br><span style="color: hsl(120, 100%, 40%);">+ * This program is distributed in the hope that it will be useful,</span><br><span style="color: hsl(120, 100%, 40%);">+ * but WITHOUT ANY WARRANTY; without even the implied warranty of</span><br><span style="color: hsl(120, 100%, 40%);">+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span><br><span style="color: hsl(120, 100%, 40%);">+ * GNU General Public License for more details.</span><br><span style="color: hsl(120, 100%, 40%);">+ */</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+#include <arch/acpi_device.h></span><br><span style="color: hsl(120, 100%, 40%);">+#include <arch/acpigen.h></span><br><span style="color: hsl(120, 100%, 40%);">+#include <console/console.h></span><br><span style="color: hsl(120, 100%, 40%);">+#include <device/device.h></span><br><span style="color: hsl(120, 100%, 40%);">+#include <device/path.h></span><br><span style="color: hsl(120, 100%, 40%);">+#include <stdint.h></span><br><span style="color: hsl(120, 100%, 40%);">+#include <string.h></span><br><span style="color: hsl(120, 100%, 40%);">+#include "chip.h"</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+#if IS_ENABLED(CONFIG_HAVE_ACPI_TABLES)</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+#define ADAU7002_ACPI_NAME "ADAU"</span><br><span style="color: hsl(120, 100%, 40%);">+#define ADAU7002_ACPI_HID "ADAU7002"</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+static void adau7002_fill_ssdt(struct device *dev)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ struct drivers_generic_adau7002_config *config = dev->chip_info;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ if (!dev->enabled || !config)</span><br><span style="color: hsl(120, 100%, 40%);">+ return;</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ /* Device */</span><br><span style="color: hsl(120, 100%, 40%);">+ acpigen_write_scope(acpi_device_scope(dev));</span><br><span style="color: hsl(120, 100%, 40%);">+ acpigen_write_device(acpi_device_name(dev));</span><br><span style="color: hsl(120, 100%, 40%);">+ acpigen_write_name_string("_HID", ADAU7002_ACPI_HID);</span><br><span style="color: hsl(120, 100%, 40%);">+ acpigen_write_name_integer("_UID", 0);</span><br><span style="color: hsl(120, 100%, 40%);">+ acpigen_write_name_string("_DDN", dev->chip_ops->name);</span><br><span style="color: hsl(120, 100%, 40%);">+ acpigen_write_STA(ACPI_STATUS_DEVICE_ALL_ON);</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ acpigen_pop_len(); /* Device */</span><br><span style="color: hsl(120, 100%, 40%);">+ acpigen_pop_len(); /* Scope */</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+ printk(BIOS_INFO, "%s: %s\n", acpi_device_path(dev),</span><br><span style="color: hsl(120, 100%, 40%);">+ dev->chip_ops->name);</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+static const char *adau7002_acpi_name(const struct device *dev)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ return ADAU7002_ACPI_NAME;</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+#endif</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+static struct device_operations adau7002_ops = {</span><br><span style="color: hsl(120, 100%, 40%);">+ .read_resources = DEVICE_NOOP,</span><br><span style="color: hsl(120, 100%, 40%);">+ .set_resources = DEVICE_NOOP,</span><br><span style="color: hsl(120, 100%, 40%);">+ .enable_resources = DEVICE_NOOP,</span><br><span style="color: hsl(120, 100%, 40%);">+#if IS_ENABLED(CONFIG_HAVE_ACPI_TABLES)</span><br><span style="color: hsl(120, 100%, 40%);">+ .acpi_name = &adau7002_acpi_name,</span><br><span style="color: hsl(120, 100%, 40%);">+ .acpi_fill_ssdt_generator = &adau7002_fill_ssdt,</span><br><span style="color: hsl(120, 100%, 40%);">+#endif</span><br><span style="color: hsl(120, 100%, 40%);">+};</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+static void adau7002_enable(struct device *dev)</span><br><span style="color: hsl(120, 100%, 40%);">+{</span><br><span style="color: hsl(120, 100%, 40%);">+ dev->ops = &adau7002_ops;</span><br><span style="color: hsl(120, 100%, 40%);">+}</span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+struct chip_operations drivers_generic_adau7002_ops = {</span><br><span style="color: hsl(120, 100%, 40%);">+ CHIP_NAME("Analog Digital DMIC")</span><br><span style="color: hsl(120, 100%, 40%);">+ .enable_dev = &adau7002_enable</span><br><span style="color: hsl(120, 100%, 40%);">+};</span><br><span>diff --git a/src/drivers/generic/adau7002/chip.h b/src/drivers/generic/adau7002/chip.h</span><br><span>new file mode 100644</span><br><span>index 0000000..809a680</span><br><span>--- /dev/null</span><br><span>+++ b/src/drivers/generic/adau7002/chip.h</span><br><span>@@ -0,0 +1,4 @@</span><br><span style="color: hsl(120, 100%, 40%);">+#include <arch/acpi_device.h></span><br><span style="color: hsl(120, 100%, 40%);">+</span><br><span style="color: hsl(120, 100%, 40%);">+struct drivers_generic_adau7002_config {</span><br><span style="color: hsl(120, 100%, 40%);">+};</span><br><span></span><br></pre><p>To view, visit <a href="https://review.coreboot.org/23659">change 23659</a>. To unsubscribe, or for help writing mail filters, visit <a href="https://review.coreboot.org/settings">settings</a>.</p><div itemscope itemtype="http://schema.org/EmailMessage"><div itemscope itemprop="action" itemtype="http://schema.org/ViewAction"><link itemprop="url" href="https://review.coreboot.org/23659"/><meta itemprop="name" content="View Change"/></div></div>
<div style="display:none"> Gerrit-Project: coreboot </div>
<div style="display:none"> Gerrit-Branch: master </div>
<div style="display:none"> Gerrit-MessageType: newchange </div>
<div style="display:none"> Gerrit-Change-Id: I2b64c8e1cbc0a68984482a7d496f8c4498cb6cbe </div>
<div style="display:none"> Gerrit-Change-Number: 23659 </div>
<div style="display:none"> Gerrit-PatchSet: 1 </div>
<div style="display:none"> Gerrit-Owner: Daniel Kurtz <djkurtz@google.com> </div>
<div style="display:none"> Gerrit-Reviewer: Daniel Kurtz <djkurtz@chromium.org> </div>