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authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2016-03-25 03:53:42 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2016-03-25 03:53:42 -0300
commit03dd4cb26d967f9588437b0fc9cc0e8353322bb7 (patch)
treefa581f6dc1c0596391690d1f67eceef3af8246dc /sound/soc/intel/skylake/skl.c
parentd4e493caf788ef44982e131ff9c786546904d934 (diff)
Linux-libre 4.5-gnu
Diffstat (limited to 'sound/soc/intel/skylake/skl.c')
-rw-r--r--sound/soc/intel/skylake/skl.c215
1 files changed, 172 insertions, 43 deletions
diff --git a/sound/soc/intel/skylake/skl.c b/sound/soc/intel/skylake/skl.c
index caa69c459..468e3a226 100644
--- a/sound/soc/intel/skylake/skl.c
+++ b/sound/soc/intel/skylake/skl.c
@@ -27,7 +27,10 @@
#include <linux/platform_device.h>
#include <linux/firmware.h>
#include <sound/pcm.h>
+#include "../common/sst-acpi.h"
#include "skl.h"
+#include "skl-sst-dsp.h"
+#include "skl-sst-ipc.h"
/*
* initialize the PCI registers
@@ -58,6 +61,49 @@ static void skl_init_pci(struct skl *skl)
skl_update_pci_byte(skl->pci, AZX_PCIREG_TCSEL, 0x07, 0);
}
+static void update_pci_dword(struct pci_dev *pci,
+ unsigned int reg, u32 mask, u32 val)
+{
+ u32 data = 0;
+
+ pci_read_config_dword(pci, reg, &data);
+ data &= ~mask;
+ data |= (val & mask);
+ pci_write_config_dword(pci, reg, data);
+}
+
+/*
+ * skl_enable_miscbdcge - enable/dsiable CGCTL.MISCBDCGE bits
+ *
+ * @dev: device pointer
+ * @enable: enable/disable flag
+ */
+static void skl_enable_miscbdcge(struct device *dev, bool enable)
+{
+ struct pci_dev *pci = to_pci_dev(dev);
+ u32 val;
+
+ val = enable ? AZX_CGCTL_MISCBDCGE_MASK : 0;
+
+ update_pci_dword(pci, AZX_PCIREG_CGCTL, AZX_CGCTL_MISCBDCGE_MASK, val);
+}
+
+/*
+ * While performing reset, controller may not come back properly causing
+ * issues, so recommendation is to set CGCTL.MISCBDCGE to 0 then do reset
+ * (init chip) and then again set CGCTL.MISCBDCGE to 1
+ */
+static int skl_init_chip(struct hdac_bus *bus, bool full_reset)
+{
+ int ret;
+
+ skl_enable_miscbdcge(bus->dev, false);
+ ret = snd_hdac_bus_init_chip(bus, full_reset);
+ skl_enable_miscbdcge(bus->dev, true);
+
+ return ret;
+}
+
/* called from IRQ */
static void skl_stream_update(struct hdac_bus *bus, struct hdac_stream *hstr)
{
@@ -130,6 +176,39 @@ static int skl_acquire_irq(struct hdac_ext_bus *ebus, int do_disconnect)
return 0;
}
+#ifdef CONFIG_PM
+static int _skl_suspend(struct hdac_ext_bus *ebus)
+{
+ struct skl *skl = ebus_to_skl(ebus);
+ struct hdac_bus *bus = ebus_to_hbus(ebus);
+ int ret;
+
+ snd_hdac_ext_bus_link_power_down_all(ebus);
+
+ ret = skl_suspend_dsp(skl);
+ if (ret < 0)
+ return ret;
+
+ snd_hdac_bus_stop_chip(bus);
+ skl_enable_miscbdcge(bus->dev, false);
+ snd_hdac_bus_enter_link_reset(bus);
+ skl_enable_miscbdcge(bus->dev, true);
+
+ return 0;
+}
+
+static int _skl_resume(struct hdac_ext_bus *ebus)
+{
+ struct skl *skl = ebus_to_skl(ebus);
+ struct hdac_bus *bus = ebus_to_hbus(ebus);
+
+ skl_init_pci(skl);
+ skl_init_chip(bus, true);
+
+ return skl_resume_dsp(skl);
+}
+#endif
+
#ifdef CONFIG_PM_SLEEP
/*
* power management
@@ -138,26 +217,46 @@ static int skl_suspend(struct device *dev)
{
struct pci_dev *pci = to_pci_dev(dev);
struct hdac_ext_bus *ebus = pci_get_drvdata(pci);
+ struct skl *skl = ebus_to_skl(ebus);
struct hdac_bus *bus = ebus_to_hbus(ebus);
- snd_hdac_bus_stop_chip(bus);
- snd_hdac_bus_enter_link_reset(bus);
-
- return 0;
+ /*
+ * Do not suspend if streams which are marked ignore suspend are
+ * running, we need to save the state for these and continue
+ */
+ if (skl->supend_active) {
+ snd_hdac_ext_bus_link_power_down_all(ebus);
+ enable_irq_wake(bus->irq);
+ pci_save_state(pci);
+ pci_disable_device(pci);
+ return 0;
+ } else {
+ return _skl_suspend(ebus);
+ }
}
static int skl_resume(struct device *dev)
{
struct pci_dev *pci = to_pci_dev(dev);
struct hdac_ext_bus *ebus = pci_get_drvdata(pci);
+ struct skl *skl = ebus_to_skl(ebus);
struct hdac_bus *bus = ebus_to_hbus(ebus);
- struct skl *hda = ebus_to_skl(ebus);
-
- skl_init_pci(hda);
+ int ret;
- snd_hdac_bus_init_chip(bus, 1);
+ /*
+ * resume only when we are not in suspend active, otherwise need to
+ * restore the device
+ */
+ if (skl->supend_active) {
+ pci_restore_state(pci);
+ ret = pci_enable_device(pci);
+ snd_hdac_ext_bus_link_power_up_all(ebus);
+ disable_irq_wake(bus->irq);
+ } else {
+ ret = _skl_resume(ebus);
+ }
- return 0;
+ return ret;
}
#endif /* CONFIG_PM_SLEEP */
@@ -167,24 +266,10 @@ static int skl_runtime_suspend(struct device *dev)
struct pci_dev *pci = to_pci_dev(dev);
struct hdac_ext_bus *ebus = pci_get_drvdata(pci);
struct hdac_bus *bus = ebus_to_hbus(ebus);
- struct skl *skl = ebus_to_skl(ebus);
- int ret;
dev_dbg(bus->dev, "in %s\n", __func__);
- /* enable controller wake up event */
- snd_hdac_chip_updatew(bus, WAKEEN, 0, STATESTS_INT_MASK);
-
- snd_hdac_ext_bus_link_power_down_all(ebus);
-
- ret = skl_suspend_dsp(skl);
- if (ret < 0)
- return ret;
-
- snd_hdac_bus_stop_chip(bus);
- snd_hdac_bus_enter_link_reset(bus);
-
- return 0;
+ return _skl_suspend(ebus);
}
static int skl_runtime_resume(struct device *dev)
@@ -192,20 +277,10 @@ static int skl_runtime_resume(struct device *dev)
struct pci_dev *pci = to_pci_dev(dev);
struct hdac_ext_bus *ebus = pci_get_drvdata(pci);
struct hdac_bus *bus = ebus_to_hbus(ebus);
- struct skl *skl = ebus_to_skl(ebus);
- int status;
dev_dbg(bus->dev, "in %s\n", __func__);
- /* Read STATESTS before controller reset */
- status = snd_hdac_chip_readw(bus, STATESTS);
-
- skl_init_pci(skl);
- snd_hdac_bus_init_chip(bus, true);
- /* disable controller Wake Up event */
- snd_hdac_chip_updatew(bus, WAKEEN, STATESTS_INT_MASK, 0);
-
- return skl_resume_dsp(skl);
+ return _skl_resume(ebus);
}
#endif /* CONFIG_PM */
@@ -242,6 +317,43 @@ static int skl_free(struct hdac_ext_bus *ebus)
return 0;
}
+static int skl_machine_device_register(struct skl *skl, void *driver_data)
+{
+ struct hdac_bus *bus = ebus_to_hbus(&skl->ebus);
+ struct platform_device *pdev;
+ struct sst_acpi_mach *mach = driver_data;
+ int ret;
+
+ mach = sst_acpi_find_machine(mach);
+ if (mach == NULL) {
+ dev_err(bus->dev, "No matching machine driver found\n");
+ return -ENODEV;
+ }
+ skl->fw_name = mach->fw_filename;
+
+ pdev = platform_device_alloc(mach->drv_name, -1);
+ if (pdev == NULL) {
+ dev_err(bus->dev, "platform device alloc failed\n");
+ return -EIO;
+ }
+
+ ret = platform_device_add(pdev);
+ if (ret) {
+ dev_err(bus->dev, "failed to add machine device\n");
+ platform_device_put(pdev);
+ return -EIO;
+ }
+ skl->i2s_dev = pdev;
+
+ return 0;
+}
+
+static void skl_machine_device_unregister(struct skl *skl)
+{
+ if (skl->i2s_dev)
+ platform_device_unregister(skl->i2s_dev);
+}
+
static int skl_dmic_device_register(struct skl *skl)
{
struct hdac_bus *bus = ebus_to_hbus(&skl->ebus);
@@ -321,7 +433,7 @@ static int skl_codec_create(struct hdac_ext_bus *ebus)
* back to the sanity state.
*/
snd_hdac_bus_stop_chip(bus);
- snd_hdac_bus_init_chip(bus, true);
+ skl_init_chip(bus, true);
}
}
}
@@ -431,12 +543,11 @@ static int skl_first_init(struct hdac_ext_bus *ebus)
/* initialize chip */
skl_init_pci(skl);
- snd_hdac_bus_init_chip(bus, true);
+ skl_init_chip(bus, true);
/* codec detection */
if (!bus->codec_mask) {
- dev_err(bus->dev, "no codecs found!\n");
- return -ENODEV;
+ dev_info(bus->dev, "no hda codecs found!\n");
}
return 0;
@@ -471,11 +582,18 @@ static int skl_probe(struct pci_dev *pci,
/* check if dsp is there */
if (ebus->ppcap) {
+ err = skl_machine_device_register(skl,
+ (void *)pci_id->driver_data);
+ if (err < 0)
+ goto out_free;
+
err = skl_init_dsp(skl);
if (err < 0) {
dev_dbg(bus->dev, "error failed to register dsp\n");
- goto out_free;
+ goto out_mach_free;
}
+ skl->skl_sst->enable_miscbdcge = skl_enable_miscbdcge;
+
}
if (ebus->mlcap)
snd_hdac_ext_bus_get_ml_capabilities(ebus);
@@ -496,8 +614,6 @@ static int skl_probe(struct pci_dev *pci,
goto out_unregister;
/*configure PM */
- pm_runtime_set_autosuspend_delay(bus->dev, SKL_SUSPEND_DELAY);
- pm_runtime_use_autosuspend(bus->dev);
pm_runtime_put_noidle(bus->dev);
pm_runtime_allow(bus->dev);
@@ -509,6 +625,8 @@ out_dmic_free:
skl_dmic_device_unregister(skl);
out_dsp_free:
skl_free_dsp(skl);
+out_mach_free:
+ skl_machine_device_unregister(skl);
out_free:
skl->init_failed = 1;
skl_free(ebus);
@@ -529,15 +647,26 @@ static void skl_remove(struct pci_dev *pci)
pci_dev_put(pci);
skl_platform_unregister(&pci->dev);
skl_free_dsp(skl);
+ skl_machine_device_unregister(skl);
skl_dmic_device_unregister(skl);
skl_free(ebus);
dev_set_drvdata(&pci->dev, NULL);
}
+static struct sst_acpi_mach sst_skl_devdata[] = {
+ { "INT343A", "skl_alc286s_i2s", "/*(DEBLOBBED)*/", NULL, NULL, NULL },
+ { "INT343B", "skl_nau88l25_ssm4567_i2s", "/*(DEBLOBBED)*/",
+ NULL, NULL, NULL },
+ { "MX98357A", "skl_nau88l25_max98357a_i2s", "/*(DEBLOBBED)*/",
+ NULL, NULL, NULL },
+ {}
+};
+
/* PCI IDs */
static const struct pci_device_id skl_ids[] = {
/* Sunrise Point-LP */
- { PCI_DEVICE(0x8086, 0x9d70), 0},
+ { PCI_DEVICE(0x8086, 0x9d70),
+ .driver_data = (unsigned long)&sst_skl_devdata},
{ 0, }
};
MODULE_DEVICE_TABLE(pci, skl_ids);