diff options
| author | Paul Barker | 2023-10-16 10:25:33 +0100 |
|---|---|---|
| committer | Marek Vasut | 2023-10-16 15:46:18 +0200 |
| commit | 21e4ba153f1f803af58f74eaa5b3778197ffceaf (patch) | |
| tree | 90531793d8aa96f5edccc07167e9ccf60a26b381 /drivers/pinctrl | |
| parent | b378c400e04eab340335a1691a390a93f17f6394 (diff) | |
gpio: Add RZ/G2L GPIO driver
This driver adds support for the gpio features of the GPIO/PFC module in
the Renesas RZ/G2L (R9A07G044) SoC.
The new `rzg2l-pfc-gpio` driver is bound to the same device tree node as
the `rzg2l-pfc-pinctrl` driver as the same hardware block provides both
GPIO and pin multiplexing features.
This patch is based on the corresponding Linux v6.5 driver
(commit 52e12027d50affbf60c6c9c64db8017391b0c22e).
Signed-off-by: Paul Barker <paul.barker.ct@bp.renesas.com>
Reviewed-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Diffstat (limited to 'drivers/pinctrl')
| -rw-r--r-- | drivers/pinctrl/renesas/rzg2l-pfc.c | 24 |
1 files changed, 21 insertions, 3 deletions
diff --git a/drivers/pinctrl/renesas/rzg2l-pfc.c b/drivers/pinctrl/renesas/rzg2l-pfc.c index ce4062ff303..7b045f75d3f 100644 --- a/drivers/pinctrl/renesas/rzg2l-pfc.c +++ b/drivers/pinctrl/renesas/rzg2l-pfc.c @@ -566,8 +566,10 @@ static int rzg2l_pfc_bind(struct udevice *parent) { struct rzg2l_pfc_driver_data *driver_data; struct rzg2l_pfc_data *data; + struct udevice *pinctrl_dev; struct driver *drv; unsigned int i; + int ret; driver_data = (struct rzg2l_pfc_driver_data *)dev_get_driver_data(parent); @@ -594,9 +596,25 @@ static int rzg2l_pfc_bind(struct udevice *parent) if (!drv) return -ENOENT; - return device_bind_with_driver_data(parent, drv, parent->name, - (ulong)data, dev_ofnode(parent), - NULL); + ret = device_bind_with_driver_data(parent, drv, parent->name, + (ulong)data, dev_ofnode(parent), + &pinctrl_dev); + + if (!ret && IS_ENABLED(CONFIG_RZG2L_GPIO)) { + drv = lists_driver_lookup_name("rzg2l-pfc-gpio"); + if (!drv) { + device_unbind(pinctrl_dev); + return -ENOENT; + } + + ret = device_bind_with_driver_data(parent, drv, parent->name, + (ulong)data, + dev_ofnode(parent), NULL); + if (ret) + device_unbind(pinctrl_dev); + } + + return ret; } U_BOOT_DRIVER(rzg2l_pfc) = { |