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memory: atmel-ebi: Stop using reg_field objects for simple things 

Turn the ->ebi_csa reg field into a simple offset that can be used with
with the matrix regmap. Using reg fields was overkill for this use case.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
This commit is contained in:
Boris Brezillon 2017-03-16 09:30:30 +01:00 committed by Lee Jones
parent 8eb8c7d844
commit d9f81dad16
1 changed files with 13 additions and 42 deletions
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55
drivers/memory/atmel-ebi.c
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@ -35,7 +35,7 @@ struct at91_ebi_dev {
struct at91_ebi_caps {
unsigned int available_cs;
const struct reg_field *ebi_csa;
unsigned int ebi_csa_offs;
void (*get_config)(struct at91_ebi_dev *ebid,
struct at91_ebi_dev_config *conf);
int (*xlate_config)(struct at91_ebi_dev *ebid,
@ -52,7 +52,6 @@ struct at91_ebi {
struct regmap *regmap;
struct clk *clk;
} smc;
struct regmap_field *ebi_csa;
struct device *dev;
const struct at91_ebi_caps *caps;
@ -355,9 +354,10 @@ static int at91_ebi_dev_setup(struct at91_ebi *ebi, struct device_node *np,
* Attach the EBI device to the generic SMC logic if at least
* one "atmel,smc-" property is present.
*/
if (ebi->ebi_csa && apply)
regmap_field_update_bits(ebi->ebi_csa,
BIT(cs), 0);
if (ebi->caps->ebi_csa_offs && apply)
regmap_update_bits(ebi->matrix,
ebi->caps->ebi_csa_offs,
BIT(cs), 0);
i++;
}
@ -367,73 +367,49 @@ static int at91_ebi_dev_setup(struct at91_ebi *ebi, struct device_node *np,
return 0;
}
static const struct reg_field at91sam9260_ebi_csa =
REG_FIELD(AT91SAM9260_MATRIX_EBICSA, 0,
AT91_MATRIX_EBI_NUM_CS - 1);
static const struct at91_ebi_caps at91sam9260_ebi_caps = {
.available_cs = 0xff,
.ebi_csa = &at91sam9260_ebi_csa,
.ebi_csa_offs = AT91SAM9260_MATRIX_EBICSA,
.get_config = at91sam9_ebi_get_config,
.xlate_config = at91_ebi_xslate_smc_config,
.apply_config = at91sam9_ebi_apply_config,
};
static const struct reg_field at91sam9261_ebi_csa =
REG_FIELD(AT91SAM9261_MATRIX_EBICSA, 0,
AT91_MATRIX_EBI_NUM_CS - 1);
static const struct at91_ebi_caps at91sam9261_ebi_caps = {
.available_cs = 0xff,
.ebi_csa = &at91sam9261_ebi_csa,
.ebi_csa_offs = AT91SAM9261_MATRIX_EBICSA,
.get_config = at91sam9_ebi_get_config,
.xlate_config = at91_ebi_xslate_smc_config,
.apply_config = at91sam9_ebi_apply_config,
};
static const struct reg_field at91sam9263_ebi0_csa =
REG_FIELD(AT91SAM9263_MATRIX_EBI0CSA, 0,
AT91_MATRIX_EBI_NUM_CS - 1);
static const struct at91_ebi_caps at91sam9263_ebi0_caps = {
.available_cs = 0x3f,
.ebi_csa = &at91sam9263_ebi0_csa,
.ebi_csa_offs = AT91SAM9263_MATRIX_EBI0CSA,
.get_config = at91sam9_ebi_get_config,
.xlate_config = at91_ebi_xslate_smc_config,
.apply_config = at91sam9_ebi_apply_config,
};
static const struct reg_field at91sam9263_ebi1_csa =
REG_FIELD(AT91SAM9263_MATRIX_EBI1CSA, 0,
AT91_MATRIX_EBI_NUM_CS - 1);
static const struct at91_ebi_caps at91sam9263_ebi1_caps = {
.available_cs = 0x7,
.ebi_csa = &at91sam9263_ebi1_csa,
.ebi_csa_offs = AT91SAM9263_MATRIX_EBI1CSA,
.get_config = at91sam9_ebi_get_config,
.xlate_config = at91_ebi_xslate_smc_config,
.apply_config = at91sam9_ebi_apply_config,
};
static const struct reg_field at91sam9rl_ebi_csa =
REG_FIELD(AT91SAM9RL_MATRIX_EBICSA, 0,
AT91_MATRIX_EBI_NUM_CS - 1);
static const struct at91_ebi_caps at91sam9rl_ebi_caps = {
.available_cs = 0x3f,
.ebi_csa = &at91sam9rl_ebi_csa,
.ebi_csa_offs = AT91SAM9RL_MATRIX_EBICSA,
.get_config = at91sam9_ebi_get_config,
.xlate_config = at91_ebi_xslate_smc_config,
.apply_config = at91sam9_ebi_apply_config,
};
static const struct reg_field at91sam9g45_ebi_csa =
REG_FIELD(AT91SAM9G45_MATRIX_EBICSA, 0,
AT91_MATRIX_EBI_NUM_CS - 1);
static const struct at91_ebi_caps at91sam9g45_ebi_caps = {
.available_cs = 0x3f,
.ebi_csa = &at91sam9g45_ebi_csa,
.ebi_csa_offs = AT91SAM9G45_MATRIX_EBICSA,
.get_config = at91sam9_ebi_get_config,
.xlate_config = at91_ebi_xslate_smc_config,
.apply_config = at91sam9_ebi_apply_config,
@ -441,7 +417,7 @@ static const struct at91_ebi_caps at91sam9g45_ebi_caps = {
static const struct at91_ebi_caps at91sam9x5_ebi_caps = {
.available_cs = 0x3f,
.ebi_csa = &at91sam9263_ebi0_csa,
.ebi_csa_offs = AT91SAM9X5_MATRIX_EBICSA,
.get_config = at91sam9_ebi_get_config,
.xlate_config = at91_ebi_xslate_smc_config,
.apply_config = at91sam9_ebi_apply_config,
@ -561,16 +537,11 @@ static int at91_ebi_probe(struct platform_device *pdev)
* The sama5d3 does not provide an EBICSA register and thus does need
* to access the matrix registers.
*/
if (ebi->caps->ebi_csa) {
if (ebi->caps->ebi_csa_offs) {
ebi->matrix =
syscon_regmap_lookup_by_phandle(np, "atmel,matrix");
if (IS_ERR(ebi->matrix))
return PTR_ERR(ebi->matrix);
ebi->ebi_csa = regmap_field_alloc(ebi->matrix,
*ebi->caps->ebi_csa);
if (IS_ERR(ebi->ebi_csa))
return PTR_ERR(ebi->ebi_csa);
}
ret = of_property_read_u32(np, "#address-cells", &val);