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sound fixes for 3.16-rc4

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This contains a few fixes for HD-audio: yet another Dell headset pin
 quirk, a fixup for Thinkpad T540P, and an improved fix for
 Haswell/Broadwell HDMI clock setup.
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Merge tag 'sound-3.16-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "This contains a few fixes for HD-audio: yet another Dell headset pin
  quirk, a fixup for Thinkpad T540P, and an improved fix for
  Haswell/Broadwell HDMI clock setup"

* tag 'sound-3.16-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: hda - restore BCLK M/N value as per CDCLK for HSW/BDW display HDA controller
  drm/i915: provide interface for audio driver to query cdclk
  ALSA: hda - Add a fixup for Thinkpad T540p
  ALSA: hda - Add another headset pin quirk for some Dell machines
This commit is contained in:
Linus Torvalds 2014-07-04 08:56:57 -07:00
commit 88b5a850c8
6 changed files with 101 additions and 41 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

21
drivers/gpu/drm/i915/intel_pm.c
View file

@ -6038,6 +6038,27 @@ int i915_release_power_well(void)
}
EXPORT_SYMBOL_GPL(i915_release_power_well);
/*
* Private interface for the audio driver to get CDCLK in kHz.
*
* Caller must request power well using i915_request_power_well() prior to
* making the call.
*/
int i915_get_cdclk_freq(void)
{
struct drm_i915_private *dev_priv;
if (!hsw_pwr)
return -ENODEV;
dev_priv = container_of(hsw_pwr, struct drm_i915_private,
power_domains);
return intel_ddi_get_cdclk_freq(dev_priv);
}
EXPORT_SYMBOL_GPL(i915_get_cdclk_freq);
#define POWER_DOMAIN_MASK (BIT(POWER_DOMAIN_NUM) - 1)
#define HSW_ALWAYS_ON_POWER_DOMAINS ( \

1
include/drm/i915_powerwell.h
View file

@ -32,5 +32,6 @@
/* For use by hda_i915 driver */
extern int i915_request_power_well(void);
extern int i915_release_power_well(void);
extern int i915_get_cdclk_freq(void);
#endif /* _I915_POWERWELL_H_ */

55
sound/pci/hda/hda_i915.c
View file

@ -20,10 +20,20 @@
#include <linux/module.h>
#include <sound/core.h>
#include <drm/i915_powerwell.h>
#include "hda_priv.h"
#include "hda_i915.h"
/* Intel HSW/BDW display HDA controller Extended Mode registers.
* EM4 (M value) and EM5 (N Value) are used to convert CDClk (Core Display
* Clock) to 24MHz BCLK: BCLK = CDCLK * M / N
* The values will be lost when the display power well is disabled.
*/
#define ICH6_REG_EM4 0x100c
#define ICH6_REG_EM5 0x1010
static int (*get_power)(void);
static int (*put_power)(void);
static int (*get_cdclk)(void);
int hda_display_power(bool enable)
{
@ -38,6 +48,43 @@ int hda_display_power(bool enable)
return put_power();
}
void haswell_set_bclk(struct azx *chip)
{
int cdclk_freq;
unsigned int bclk_m, bclk_n;
if (!get_cdclk)
return;
cdclk_freq = get_cdclk();
switch (cdclk_freq) {
case 337500:
bclk_m = 16;
bclk_n = 225;
break;
case 450000:
default: /* default CDCLK 450MHz */
bclk_m = 4;
bclk_n = 75;
break;
case 540000:
bclk_m = 4;
bclk_n = 90;
break;
case 675000:
bclk_m = 8;
bclk_n = 225;
break;
}
azx_writew(chip, EM4, bclk_m);
azx_writew(chip, EM5, bclk_n);
}
int hda_i915_init(void)
{
int err = 0;
@ -55,6 +102,10 @@ int hda_i915_init(void)
return -ENODEV;
}
get_cdclk = symbol_request(i915_get_cdclk_freq);
if (!get_cdclk) /* may have abnormal BCLK and audio playback rate */
pr_warn("hda-i915: get_cdclk symbol get fail\n");
pr_debug("HDA driver get symbol successfully from i915 module\n");
return err;
@ -70,6 +121,10 @@ int hda_i915_exit(void)
symbol_put(i915_release_power_well);
put_power = NULL;
}
if (get_cdclk) {
symbol_put(i915_get_cdclk_freq);
get_cdclk = NULL;
}
return 0;
}

2
sound/pci/hda/hda_i915.h
View file

@ -18,10 +18,12 @@
#ifdef CONFIG_SND_HDA_I915
int hda_display_power(bool enable);
void haswell_set_bclk(struct azx *chip);
int hda_i915_init(void);
int hda_i915_exit(void);
#else
static inline int hda_display_power(bool enable) { return 0; }
static inline void haswell_set_bclk(struct azx *chip) { return; }
static inline int hda_i915_init(void)
{
return -ENODEV;

50
sound/pci/hda/hda_intel.c
View file

@ -62,9 +62,9 @@
#include <linux/vga_switcheroo.h>
#include <linux/firmware.h>
#include "hda_codec.h"
#include "hda_i915.h"
#include "hda_controller.h"
#include "hda_priv.h"
#include "hda_i915.h"
static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
@ -288,21 +288,8 @@ static char *driver_short_names[] = {
[AZX_DRIVER_GENERIC] = "HD-Audio Generic",
};
/* Intel HSW/BDW display HDA controller Extended Mode registers.
* EM4 (M value) and EM5 (N Value) are used to convert CDClk (Core Display
* Clock) to 24MHz BCLK: BCLK = CDCLK * M / N
* The values will be lost when the display power well is disabled.
*/
#define ICH6_REG_EM4 0x100c
#define ICH6_REG_EM5 0x1010
struct hda_intel {
struct azx chip;
/* HSW/BDW display HDA controller to restore BCLK from CDCLK */
unsigned int bclk_m;
unsigned int bclk_n;
};
@ -598,22 +585,6 @@ static int param_set_xint(const char *val, const struct kernel_param *kp)
#define azx_del_card_list(chip) /* NOP */
#endif /* CONFIG_PM */
static void haswell_save_bclk(struct azx *chip)
{
struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
hda->bclk_m = azx_readw(chip, EM4);
hda->bclk_n = azx_readw(chip, EM5);
}
static void haswell_restore_bclk(struct azx *chip)
{
struct hda_intel *hda = container_of(chip, struct hda_intel, chip);
azx_writew(chip, EM4, hda->bclk_m);
azx_writew(chip, EM5, hda->bclk_n);
}
#if defined(CONFIG_PM_SLEEP) || defined(SUPPORT_VGA_SWITCHEROO)
/*
* power management
@ -641,12 +612,6 @@ static int azx_suspend(struct device *dev)
chip->irq = -1;
}
/* Save BCLK M/N values before they become invalid in D3.
* Will test if display power well can be released now.
*/
if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL)
haswell_save_bclk(chip);
if (chip->msi)
pci_disable_msi(chip->pci);
pci_disable_device(pci);
@ -668,7 +633,7 @@ static int azx_resume(struct device *dev)
if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL) {
hda_display_power(true);
haswell_restore_bclk(chip);
haswell_set_bclk(chip);
}
pci_set_power_state(pci, PCI_D0);
pci_restore_state(pci);
@ -713,10 +678,9 @@ static int azx_runtime_suspend(struct device *dev)
azx_stop_chip(chip);
azx_enter_link_reset(chip);
azx_clear_irq_pending(chip);
if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL) {
haswell_save_bclk(chip);
if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL)
hda_display_power(false);
}
return 0;
}
@ -736,7 +700,7 @@ static int azx_runtime_resume(struct device *dev)
if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL) {
hda_display_power(true);
haswell_restore_bclk(chip);
haswell_set_bclk(chip);
}
/* Read STATESTS before controller reset */
@ -1426,6 +1390,10 @@ static int azx_first_init(struct azx *chip)
/* initialize chip */
azx_init_pci(chip);
if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL)
haswell_set_bclk(chip);
azx_init_chip(chip, (probe_only[dev] & 2) == 0);
/* codec detection */

13
sound/pci/hda/patch_realtek.c
View file

@ -4880,6 +4880,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
SND_PCI_QUIRK(0x17aa, 0x2208, "Thinkpad T431s", ALC269_FIXUP_LENOVO_DOCK),
SND_PCI_QUIRK(0x17aa, 0x220c, "Thinkpad T440s", ALC292_FIXUP_TPT440_DOCK),
SND_PCI_QUIRK(0x17aa, 0x220e, "Thinkpad T440p", ALC292_FIXUP_TPT440_DOCK),
SND_PCI_QUIRK(0x17aa, 0x2210, "Thinkpad T540p", ALC292_FIXUP_TPT440_DOCK),
SND_PCI_QUIRK(0x17aa, 0x2212, "Thinkpad", ALC269_FIXUP_LIMIT_INT_MIC_BOOST),
SND_PCI_QUIRK(0x17aa, 0x2214, "Thinkpad", ALC269_FIXUP_LIMIT_INT_MIC_BOOST),
SND_PCI_QUIRK(0x17aa, 0x2215, "Thinkpad", ALC269_FIXUP_LIMIT_INT_MIC_BOOST),
@ -5085,6 +5086,18 @@ static const struct snd_hda_pin_quirk alc269_pin_fixup_tbl[] = {
{0x1b, 0x411111f0},
{0x1d, 0x40700001},
{0x1e, 0x411111f0}),
SND_HDA_PIN_QUIRK(0x10ec0293, 0x1028, "Dell", ALC293_FIXUP_DELL1_MIC_NO_PRESENCE,
{0x12, 0x40000000},
{0x13, 0x90a60140},
{0x14, 0x90170110},
{0x15, 0x0221401f},
{0x16, 0x411111f0},
{0x18, 0x411111f0},
{0x19, 0x411111f0},
{0x1a, 0x411111f0},
{0x1b, 0x411111f0},
{0x1d, 0x40700001},
{0x1e, 0x411111f0}),
{}
};