diff options
| author | Zidan Wang <zidan.wang@freescale.com> | 2015-09-18 11:09:13 +0800 |
|---|---|---|
| committer | Nitin Garg <nitin.garg@nxp.com> | 2016-01-14 11:02:13 -0600 |
| commit | d424624fa47497f12b76fbcf45713b68c9ec2da2 (patch) | |
| tree | 80ee14792ec88ad54eba7213e1b0bbc3a666a652 /sound | |
| parent | b357c556c97a73f3a1bbf85483cbc64633a8ba41 (diff) | |
ASoC: fsl_esai: Add driver suspend and resume to support MEGA Fast
For i.MX6 SoloX, there is a mode of the SoC to shutdown all power source of
modules during system suspend and resume procedure. Thus, ESAI needs to save
all the values of registers before the system suspend and restore them after
the system resume.
Signed-off-by: Zidan Wang <zidan.wang@freescale.com>
Acked-by: Nicolin Chen <nicoleotsuka@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
(cherry picked from commit c64c60763b4e3c72a3520c8d51be858cd67bacb5)
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/fsl/fsl_esai.c | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/sound/soc/fsl/fsl_esai.c b/sound/soc/fsl/fsl_esai.c index c3b4aba82ce8..24791c0bce11 100644 --- a/sound/soc/fsl/fsl_esai.c +++ b/sound/soc/fsl/fsl_esai.c @@ -668,6 +668,24 @@ static const struct snd_soc_component_driver fsl_esai_component = { .name = "fsl-esai", }; +static const struct reg_default fsl_esai_reg_defaults[] = { + {0x8, 0x00000000}, + {0x10, 0x00000000}, + {0x18, 0x00000000}, + {0x98, 0x00000000}, + {0xd0, 0x00000000}, + {0xd4, 0x00000000}, + {0xd8, 0x00000000}, + {0xdc, 0x00000000}, + {0xe0, 0x00000000}, + {0xe4, 0x0000ffff}, + {0xe8, 0x0000ffff}, + {0xec, 0x0000ffff}, + {0xf0, 0x0000ffff}, + {0xf8, 0x00000000}, + {0xfc, 0x00000000}, +}; + static bool fsl_esai_readable_reg(struct device *dev, unsigned int reg) { switch (reg) { @@ -723,7 +741,6 @@ static bool fsl_esai_volatile_reg(struct device *dev, unsigned int reg) default: return false; } - } static bool fsl_esai_writeable_reg(struct device *dev, unsigned int reg) @@ -763,6 +780,8 @@ static const struct regmap_config fsl_esai_regmap_config = { .val_bits = 32, .max_register = REG_ESAI_PCRC, + .reg_defaults = fsl_esai_reg_defaults, + .num_reg_defaults = ARRAY_SIZE(fsl_esai_reg_defaults), .readable_reg = fsl_esai_readable_reg, .volatile_reg = fsl_esai_volatile_reg, .writeable_reg = fsl_esai_writeable_reg, |