No function in the QMC API is available to get the number of phandles
present in a phandle list.
Fill this lack introducing qmc_chan_count_phandles().
Signed-off-by: Herve Codina <herve.codina@xxxxxxxxxxx>
---
drivers/soc/fsl/qe/qmc.c | 13 +++++++++++++
include/soc/fsl/qe/qmc.h | 2 ++
2 files changed, 15 insertions(+)
diff --git a/drivers/soc/fsl/qe/qmc.c b/drivers/soc/fsl/qe/qmc.c
index e23d60018400..76bb496305a0 100644
--- a/drivers/soc/fsl/qe/qmc.c
+++ b/drivers/soc/fsl/qe/qmc.c
@@ -1777,6 +1777,19 @@ static struct qmc_chan *qmc_chan_get_from_qmc(struct device_node *qmc_np, unsign
return qmc_chan;
}
+int qmc_chan_count_phandles(struct device_node *np, const char *phandles_name)
+{
+ int count;
+
+ /* phandles are fixed args phandles with one arg */
+ count = of_count_phandle_with_args(np, phandles_name, NULL);
+ if (count < 0)
+ return count;
+
+ return count / 2;
+}
+EXPORT_SYMBOL(qmc_chan_count_phandles);
+
struct qmc_chan *qmc_chan_get_byphandles_index(struct device_node *np,
const char *phandles_name,
int index)
diff --git a/include/soc/fsl/qe/qmc.h b/include/soc/fsl/qe/qmc.h
index 0fa7205145ce..294e42ea8d4c 100644
--- a/include/soc/fsl/qe/qmc.h
+++ b/include/soc/fsl/qe/qmc.h
@@ -16,6 +16,8 @@ struct device_node;
struct device;
struct qmc_chan;
+int qmc_chan_count_phandles(struct device_node *np, const char *phandles_name);
+
struct qmc_chan *qmc_chan_get_byphandles_index(struct device_node *np,
const char *phandles_name,
int index);
--
2.45.0
