mtd: st_spi_fsm: Prepare read/write sequences according to configuration

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Gitweb:     http://git.infradead.org/?p=mtd-2.6.git;a=commit;h=88cccb89117dfe258c5d8abb55db47e0a2a7daec
Commit:     88cccb89117dfe258c5d8abb55db47e0a2a7daec
Parent:     6bd2960080bc5842159d89a8d476a9044225788c
Author:     Lee Jones <lee.jones at linaro.org>
AuthorDate: Thu Mar 20 09:20:49 2014 +0000
Committer:  Brian Norris <computersforpeace at gmail.com>
CommitDate: Thu Mar 20 04:17:17 2014 -0700

    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 at st.com>
    Signed-off-by: Lee Jones <lee.jones at linaro.org>
    Signed-off-by: Brian Norris <computersforpeace at gmail.com>
---
 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 9d1edf0..3e13d57 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;