diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/memory/atmel-ebi.c | 51 |
1 files changed, 37 insertions, 14 deletions
diff --git a/drivers/memory/atmel-ebi.c b/drivers/memory/atmel-ebi.c index 46657eaaedf6..4e83a8b92665 100644 --- a/drivers/memory/atmel-ebi.c +++ b/drivers/memory/atmel-ebi.c @@ -76,9 +76,11 @@ struct at91_ebi_caps { struct at91_ebi { struct clk *clk; - struct regmap *smc; struct regmap *matrix; - + struct { + struct regmap *regmap; + struct clk *clk; + } smc; struct regmap_field *ebi_csa; struct device *dev; @@ -395,22 +397,26 @@ static int at91sam9_ebi_init(struct at91_ebi *ebi) field.id_offset = AT91SAM9_SMC_GENERIC_BLK_SZ; field.reg = AT91SAM9_SMC_SETUP(AT91SAM9_SMC_GENERIC); - fields->setup = devm_regmap_field_alloc(ebi->dev, ebi->smc, field); + fields->setup = devm_regmap_field_alloc(ebi->dev, ebi->smc.regmap, + field); if (IS_ERR(fields->setup)) return PTR_ERR(fields->setup); field.reg = AT91SAM9_SMC_PULSE(AT91SAM9_SMC_GENERIC); - fields->pulse = devm_regmap_field_alloc(ebi->dev, ebi->smc, field); + fields->pulse = devm_regmap_field_alloc(ebi->dev, ebi->smc.regmap, + field); if (IS_ERR(fields->pulse)) return PTR_ERR(fields->pulse); field.reg = AT91SAM9_SMC_CYCLE(AT91SAM9_SMC_GENERIC); - fields->cycle = devm_regmap_field_alloc(ebi->dev, ebi->smc, field); + fields->cycle = devm_regmap_field_alloc(ebi->dev, ebi->smc.regmap, + field); if (IS_ERR(fields->cycle)) return PTR_ERR(fields->cycle); field.reg = AT91SAM9_SMC_MODE(AT91SAM9_SMC_GENERIC); - fields->mode = devm_regmap_field_alloc(ebi->dev, ebi->smc, field); + fields->mode = devm_regmap_field_alloc(ebi->dev, ebi->smc.regmap, + field); return PTR_ERR_OR_ZERO(fields->mode); } @@ -423,22 +429,26 @@ static int sama5d3_ebi_init(struct at91_ebi *ebi) field.id_offset = SAMA5_SMC_GENERIC_BLK_SZ; field.reg = AT91SAM9_SMC_SETUP(SAMA5_SMC_GENERIC); - fields->setup = devm_regmap_field_alloc(ebi->dev, ebi->smc, field); + fields->setup = devm_regmap_field_alloc(ebi->dev, ebi->smc.regmap, + field); if (IS_ERR(fields->setup)) return PTR_ERR(fields->setup); field.reg = AT91SAM9_SMC_PULSE(SAMA5_SMC_GENERIC); - fields->pulse = devm_regmap_field_alloc(ebi->dev, ebi->smc, field); + fields->pulse = devm_regmap_field_alloc(ebi->dev, ebi->smc.regmap, + field); if (IS_ERR(fields->pulse)) return PTR_ERR(fields->pulse); field.reg = AT91SAM9_SMC_CYCLE(SAMA5_SMC_GENERIC); - fields->cycle = devm_regmap_field_alloc(ebi->dev, ebi->smc, field); + fields->cycle = devm_regmap_field_alloc(ebi->dev, ebi->smc.regmap, + field); if (IS_ERR(fields->cycle)) return PTR_ERR(fields->cycle); field.reg = SAMA5_SMC_MODE(SAMA5_SMC_GENERIC); - fields->mode = devm_regmap_field_alloc(ebi->dev, ebi->smc, field); + fields->mode = devm_regmap_field_alloc(ebi->dev, ebi->smc.regmap, + field); return PTR_ERR_OR_ZERO(fields->mode); } @@ -677,7 +687,7 @@ static int at91_ebi_dev_disable(struct at91_ebi *ebi, struct device_node *np) static int at91_ebi_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; - struct device_node *child, *np = dev->of_node; + struct device_node *child, *np = dev->of_node, *smc_np; const struct of_device_id *match; struct at91_ebi *ebi; int ret, reg_cells; @@ -702,9 +712,22 @@ static int at91_ebi_probe(struct platform_device *pdev) ebi->clk = clk; - ebi->smc = syscon_regmap_lookup_by_phandle(np, "atmel,smc"); - if (IS_ERR(ebi->smc)) - return PTR_ERR(ebi->smc); + smc_np = of_parse_phandle(dev->of_node, "atmel,smc", 0); + + ebi->smc.regmap = syscon_node_to_regmap(smc_np); + if (IS_ERR(ebi->smc.regmap)) + return PTR_ERR(ebi->smc.regmap); + + ebi->smc.clk = of_clk_get(smc_np, 0); + if (IS_ERR(ebi->smc.clk)) { + if (PTR_ERR(ebi->smc.clk) != -ENOENT) + return PTR_ERR(ebi->smc.clk); + + ebi->smc.clk = NULL; + } + ret = clk_prepare_enable(ebi->smc.clk); + if (ret) + return ret; /* * The sama5d3 does not provide an EBICSA register and thus does need |