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ASoC: SOF: Intel: hda-mlink: add helpers to enable/check interrupts

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When INTC is set, LCTL exposes INTEN and INTSTS fields.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Link: https://lore.kernel.org/r/20230404104127.5629-12-peter.ujfalusi@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Pierre-Louis Bossart 2023-04-04 13:41:20 +03:00 committed by Mark Brown
parent 6857c7ee20
commit 2e4288319a
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
2 changed files with 70 additions and 0 deletions
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8
include/sound/hda-mlink.h
View File

@ -14,6 +14,8 @@ int hda_bus_ml_init(struct hdac_bus *bus);
void hda_bus_ml_free(struct hdac_bus *bus);
int hdac_bus_eml_get_count(struct hdac_bus *bus, bool alt, int elid);
void hdac_bus_eml_enable_interrupt(struct hdac_bus *bus, bool alt, int elid, bool enable);
bool hdac_bus_eml_check_interrupt(struct hdac_bus *bus, bool alt, int elid);
int hdac_bus_eml_power_up(struct hdac_bus *bus, bool alt, int elid, int sublink);
int hdac_bus_eml_power_up_unlocked(struct hdac_bus *bus, bool alt, int elid, int sublink);
@ -39,6 +41,12 @@ static inline void hda_bus_ml_free(struct hdac_bus *bus) { }
static inline int
hdac_bus_eml_get_count(struct hdac_bus *bus, bool alt, int elid) { return 0; }
static inline void
hdac_bus_eml_enable_interrupt(struct hdac_bus *bus, bool alt, int elid, bool enable) { }
static inline bool
hdac_bus_eml_check_interrupt(struct hdac_bus *bus, bool alt, int elid) { return false; }
static inline int
hdac_bus_eml_power_up(struct hdac_bus *bus, bool alt, int elid, int sublink)
{

62
sound/soc/sof/intel/hda-mlink.c
View File

@ -232,6 +232,28 @@ static int hdaml_link_shutdown(u32 __iomem *lctl, int sublink)
return check_sublink_power(lctl, sublink, false);
}
static void hdaml_link_enable_interrupt(u32 __iomem *lctl, bool enable)
{
u32 val;
val = readl(lctl);
if (enable)
val |= AZX_ML_LCTL_INTEN;
else
val &= ~AZX_ML_LCTL_INTEN;
writel(val, lctl);
}
static bool hdaml_link_check_interrupt(u32 __iomem *lctl)
{
u32 val;
val = readl(lctl);
return val & AZX_ML_LCTL_INTSTS;
}
/* END HDAML section */
static int hda_ml_alloc_h2link(struct hdac_bus *bus, int index)
@ -340,6 +362,46 @@ int hdac_bus_eml_get_count(struct hdac_bus *bus, bool alt, int elid)
}
EXPORT_SYMBOL_NS(hdac_bus_eml_get_count, SND_SOC_SOF_HDA_MLINK);
void hdac_bus_eml_enable_interrupt(struct hdac_bus *bus, bool alt, int elid, bool enable)
{
struct hdac_ext2_link *h2link;
struct hdac_ext_link *hlink;
h2link = find_ext2_link(bus, alt, elid);
if (!h2link)
return;
if (!h2link->intc)
return;
hlink = &h2link->hext_link;
mutex_lock(&h2link->eml_lock);
hdaml_link_enable_interrupt(hlink->ml_addr + AZX_REG_ML_LCTL, enable);
mutex_unlock(&h2link->eml_lock);
}
EXPORT_SYMBOL_NS(hdac_bus_eml_enable_interrupt, SND_SOC_SOF_HDA_MLINK);
bool hdac_bus_eml_check_interrupt(struct hdac_bus *bus, bool alt, int elid)
{
struct hdac_ext2_link *h2link;
struct hdac_ext_link *hlink;
h2link = find_ext2_link(bus, alt, elid);
if (!h2link)
return false;
if (!h2link->intc)
return false;
hlink = &h2link->hext_link;
return hdaml_link_check_interrupt(hlink->ml_addr + AZX_REG_ML_LCTL);
}
EXPORT_SYMBOL_NS(hdac_bus_eml_check_interrupt, SND_SOC_SOF_HDA_MLINK);
static int hdac_bus_eml_power_up_base(struct hdac_bus *bus, bool alt, int elid, int sublink,
bool eml_lock)
{