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mfd: syscon: atmel-smc: Add helper to retrieve register layout

Telusuri Sumber 
For HSMC controller, the register layout depends on the device i.e. the
offset of setup, pulse, cycle, mode and timings registers is not the
same. An helper is added to provide the correct register layout.

Fixes: fe9d7cb22e ("mfd: syscon: atmel-smc: Add new helpers to ease
SMC regs manipulation")
Suggested-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Ludovic Desroches <ludovic.desroches@microchip.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
This commit is contained in:
Ludovic Desroches
2017-07-18 15:22:19 +02:00
committed by Lee Jones
orang tua f446363374
melakukan b0f3ab20e7
4 mengubah file dengan 92 tambahan dan 30 penghapusan
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10
drivers/mtd/nand/atmel/nand-controller.c
Melihat File

@@ -247,6 +247,7 @@ struct atmel_hsmc_nand_controller {
void __iomem *virt;
dma_addr_t dma;
} sram;
const struct atmel_hsmc_reg_layout *hsmc_layout;
struct regmap *io;
struct atmel_nfc_op op;
struct completion complete;
@@ -1442,12 +1443,12 @@ static int atmel_hsmc_nand_setup_data_interface(struct atmel_nand *nand,
int csline,
const struct nand_data_interface *conf)
{
struct atmel_nand_controller *nc;
struct atmel_hsmc_nand_controller *nc;
struct atmel_smc_cs_conf smcconf;
struct atmel_nand_cs *cs;
int ret;
nc = to_nand_controller(nand->base.controller);
nc = to_hsmc_nand_controller(nand->base.controller);
ret = atmel_smc_nand_prepare_smcconf(nand, conf, &smcconf);
if (ret)
@@ -1462,7 +1463,8 @@ static int atmel_hsmc_nand_setup_data_interface(struct atmel_nand *nand,
if (cs->rb.type == ATMEL_NAND_NATIVE_RB)
cs->smcconf.timings |= ATMEL_HSMC_TIMINGS_RBNSEL(cs->rb.id);
atmel_hsmc_cs_conf_apply(nc->smc, cs->id, &cs->smcconf);
atmel_hsmc_cs_conf_apply(nc->base.smc, nc->hsmc_layout, cs->id,
&cs->smcconf);
return 0;
}
@@ -2177,6 +2179,8 @@ atmel_hsmc_nand_controller_init(struct atmel_hsmc_nand_controller *nc)
return -EINVAL;
}
nc->hsmc_layout = atmel_hsmc_get_reg_layout(np);
nc->irq = of_irq_get(np, 0);
of_node_put(np);
if (nc->irq < 0) {