[PATCH v3 18/36] mtd: st_spi_fsm: Prepare read/write sequences according to configuration

Lee Jones
2013-11-29T12:20:14Z

Firstly we search for our preference read/write configuration based on a
given chip's capabilities. Then we actually set up the message sequence
accordingly.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
drivers/mtd/devices/st_spi_fsm.c | 17 +++++++++++++++++
1 file changed, 17 insertions(+)

diff --git a/drivers/mtd/devices/st_spi_fsm.c b/drivers/mtd/devices/st_spi_fsm.c
index 7d690c7..14891ea 100644
--- a/drivers/mtd/devices/st_spi_fsm.c
+++ b/drivers/mtd/devices/st_spi_fsm.c
@@ -267,6 +267,23 @@ static void stfsm_prepare_rw_seq(struct stfsm *fsm,
seq->seq[i++] = STFSM_INST_STOP;
}

+static int stfsm_search_prepare_rw_seq(struct stfsm *fsm,
+ struct stfsm_seq *seq,
+ struct seq_rw_config *cfgs)
+{
+ struct seq_rw_config *config;
+
+ config = stfsm_search_seq_rw_configs(fsm, cfgs);
+ if (!config) {
+ dev_err(fsm->dev, "failed to find suitable config\n");
+ return -EINVAL;
+ }
+
+ stfsm_prepare_rw_seq(fsm, seq, config);
+
+ return 0;
+}
+
static void stfsm_read_jedec(struct stfsm *fsm, uint8_t *const jedec)
{
const struct stfsm_seq *seq = &stfsm_seq_read_jedec;
--
1.8.3.2