diff options
| author | Eddie James <eajames@linux.ibm.com> | 2020-06-09 16:39:27 -0500 |
|---|---|---|
| committer | Joel Stanley <joel@jms.id.au> | 2020-09-10 12:22:47 +0930 |
| commit | 04635a30dd53890fac4e926f91c4ec8619c9227b (patch) | |
| tree | a20f60529a37c5f26180f0fe6e3e3dad401eef3e /drivers/fsi/fsi-master-ast-cf.c | |
| parent | 3c3c484850bcb4b28f2377e3d641a32c42af949c (diff) | |
| download | lwn-04635a30dd53890fac4e926f91c4ec8619c9227b.tar.gz lwn-04635a30dd53890fac4e926f91c4ec8619c9227b.zip | |
fsi: master: Add boolean parameter to link_enable function
Add the ability to disable a link with a boolean parameter to the
link_enable function. This is necessary so that the master can disable
links that it isn't using; for example, links to slaves that fail
initialization.
Signed-off-by: Eddie James <eajames@linux.ibm.com>
Signed-off-by: Joel Stanley <joel@jms.id.au>
Diffstat (limited to 'drivers/fsi/fsi-master-ast-cf.c')
| -rw-r--r-- | drivers/fsi/fsi-master-ast-cf.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/fsi/fsi-master-ast-cf.c b/drivers/fsi/fsi-master-ast-cf.c index 85d9be38b32b..57a779a89b07 100644 --- a/drivers/fsi/fsi-master-ast-cf.c +++ b/drivers/fsi/fsi-master-ast-cf.c @@ -1039,7 +1039,8 @@ static void fsi_master_acf_setup_external(struct fsi_master_acf *master) gpiod_direction_input(master->gpio_data); } -static int fsi_master_acf_link_enable(struct fsi_master *_master, int link) +static int fsi_master_acf_link_enable(struct fsi_master *_master, int link, + bool enable) { struct fsi_master_acf *master = to_fsi_master_acf(_master); int rc = -EBUSY; @@ -1049,7 +1050,7 @@ static int fsi_master_acf_link_enable(struct fsi_master *_master, int link) mutex_lock(&master->lock); if (!master->external_mode) { - gpiod_set_value(master->gpio_enable, 1); + gpiod_set_value(master->gpio_enable, enable ? 1 : 0); rc = 0; } mutex_unlock(&master->lock); |