diff options
| author | Herve Codina <herve.codina@bootlin.com> | 2024-07-01 13:30:35 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2024-07-04 12:24:59 +0100 |
| commit | af8432b2e41abc0a20bdc01a3b144ea7b2f1ee09 (patch) | |
| tree | c90e9f468639b43a4293a69fb439216f58d189cf | |
| parent | 37797c605da33445adc112561695f70bfaa11133 (diff) | |
soc: fsl: cpm1: qmc: Introduce qmc_chan_count_phandles()
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@bootlin.com>
Link: https://patch.msgid.link/20240701113038.55144-9-herve.codina@bootlin.com
Signed-off-by: Mark Brown <broonie@kernel.org>
| -rw-r--r-- | drivers/soc/fsl/qe/qmc.c | 13 | ||||
| -rw-r--r-- | include/soc/fsl/qe/qmc.h | 2 |
2 files changed, 15 insertions, 0 deletions
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); |