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authorLee Jones <lee.jones@linaro.org>2014-03-20 09:20:49 +0000
committerBrian Norris <computersforpeace@gmail.com>2014-03-20 04:17:17 -0700
commit88cccb89117dfe258c5d8abb55db47e0a2a7daec (patch)
treee24fd0b4ef7f42875d5ed5fb90e0e4688738c08d /drivers/mtd
parent6bd2960080bc5842159d89a8d476a9044225788c (diff)
mtd: st_spi_fsm: Prepare read/write sequences according to configuration
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. Acked-by Angus Clark <angus.clark@st.com> Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Diffstat (limited to 'drivers/mtd')
-rw-r--r--drivers/mtd/devices/st_spi_fsm.c17
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/mtd/devices/st_spi_fsm.c b/drivers/mtd/devices/st_spi_fsm.c
index 9d1edf05701a..3e13d579aef8 100644
--- a/drivers/mtd/devices/st_spi_fsm.c
+++ b/drivers/mtd/devices/st_spi_fsm.c
@@ -618,6 +618,23 @@ 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;