ALSA: hda - Cancel probe work instead of flush at remove

[firefly-linux-kernel-4.4.55.git] / sound / pci / hda / hda_intel.c

diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index 3b36582970702219f0e1b28f16093b4de6425b48..2c13298e80b7477a4bef0646319af55f118831e2 100644 (file)
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -90,6 +90,8 @@ enum {
 #define NVIDIA_HDA_ENABLE_COHBIT      0x01
 
 /* Defines for Intel SCH HDA snoop control */
+#define INTEL_HDA_CGCTL         0x48
+#define INTEL_HDA_CGCTL_MISCBDCGE        (0x1 << 6)
 #define INTEL_SCH_HDA_DEVC      0x78
 #define INTEL_SCH_HDA_DEVC_NOSNOOP       (0x1<<11)
 
@@ -528,10 +530,21 @@ static void hda_intel_init_chip(struct azx *chip, bool full_reset)
 {
        struct hdac_bus *bus = azx_bus(chip);
        struct pci_dev *pci = chip->pci;
+       u32 val;
 
        if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL)
                snd_hdac_set_codec_wakeup(bus, true);
+       if (IS_BROXTON(pci)) {
+               pci_read_config_dword(pci, INTEL_HDA_CGCTL, &val);
+               val = val & ~INTEL_HDA_CGCTL_MISCBDCGE;
+               pci_write_config_dword(pci, INTEL_HDA_CGCTL, val);
+       }
        azx_init_chip(chip, full_reset);
+       if (IS_BROXTON(pci)) {
+               pci_read_config_dword(pci, INTEL_HDA_CGCTL, &val);
+               val = val | INTEL_HDA_CGCTL_MISCBDCGE;
+               pci_write_config_dword(pci, INTEL_HDA_CGCTL, val);
+       }
        if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL)
                snd_hdac_set_codec_wakeup(bus, false);
 
@@ -2126,9 +2139,17 @@ i915_power_fail:
 static void azx_remove(struct pci_dev *pci)
 {
        struct snd_card *card = pci_get_drvdata(pci);
+       struct azx *chip;
+       struct hda_intel *hda;
+
+       if (card) {
+               /* cancel the pending probing work */
+               chip = card->private_data;
+               hda = container_of(chip, struct hda_intel, chip);
+               cancel_work_sync(&hda->probe_work);
 
-       if (card)
                snd_card_free(card);
+       }
 }
 
 static void azx_shutdown(struct pci_dev *pci)