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| author | Takashi Iwai <tiwai@suse.de> | 2017-09-04 14:50:49 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2017-09-04 14:50:49 +0200 |
| commit | b06898d119f6b8dba7b318ad73558ce2d39161e8 (patch) | |
| tree | df85bc0cd9047202faa6b02ee8ce706f155ba896 /drivers/mtd/nand/atmel/nand-controller.c | |
| parent | b24a5f293058b512f1685930f2983a20ee3e15ab (diff) | |
| parent | f5fd4a67bef5f2c5c2c9eb0cb2900e12d192ae23 (diff) | |
| download | op-kernel-dev-b06898d119f6b8dba7b318ad73558ce2d39161e8.zip op-kernel-dev-b06898d119f6b8dba7b318ad73558ce2d39161e8.tar.gz | |
Merge tag 'asoc-v4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Updates for v4.14
This is quite a large release by volume of patches and diff, a lot of
that is mechanical cleanup patches but it's great to also see a range of
vendors actively working on adding new features and fixing issues in
their drivers. Intel and Realtek have been especially active here.
- Continued work towards moving everything to the component model from
Morimoto-san.
- Use of devres for jack detection GPIOs, eliminating some potential
resource leaks.
- Jack detection support for Qualcomm MSM8916.
- Support for Allwinner H3, Cirrus Logic CS43130, Intel Kabylake
systems with RT5663, Realtek RT274, TI TLV320AIC32x6 and Wolfson
WM8523.
Diffstat (limited to 'drivers/mtd/nand/atmel/nand-controller.c')
| -rw-r--r-- | drivers/mtd/nand/atmel/nand-controller.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/drivers/mtd/nand/atmel/nand-controller.c b/drivers/mtd/nand/atmel/nand-controller.c index d922a88..ceec21b 100644 --- a/drivers/mtd/nand/atmel/nand-controller.c +++ b/drivers/mtd/nand/atmel/nand-controller.c @@ -1201,7 +1201,7 @@ static int atmel_smc_nand_prepare_smcconf(struct atmel_nand *nand, * tRC < 30ns implies EDO mode. This controller does not support this * mode. */ - if (conf->timings.sdr.tRC_min < 30) + if (conf->timings.sdr.tRC_min < 30000) return -ENOTSUPP; atmel_smc_cs_conf_init(smcconf); @@ -1364,7 +1364,18 @@ static int atmel_smc_nand_prepare_smcconf(struct atmel_nand *nand, ret = atmel_smc_cs_conf_set_timing(smcconf, ATMEL_HSMC_TIMINGS_TADL_SHIFT, ncycles); - if (ret) + /* + * Version 4 of the ONFI spec mandates that tADL be at least 400 + * nanoseconds, but, depending on the master clock rate, 400 ns may not + * fit in the tADL field of the SMC reg. We need to relax the check and + * accept the -ERANGE return code. + * + * Note that previous versions of the ONFI spec had a lower tADL_min + * (100 or 200 ns). It's not clear why this timing constraint got + * increased but it seems most NANDs are fine with values lower than + * 400ns, so we should be safe. + */ + if (ret && ret != -ERANGE) return ret; ncycles = DIV_ROUND_UP(conf->timings.sdr.tAR_min, mckperiodps); |
