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fpga: xilinx-core: add new gpio names for prog and init

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Old names (prog_b and init-b) are used as a fallback for hardware
compatible with the "xlnx,fpga-slave-serial" string.

Signed-off-by: Charles Perry <charles.perry@savoirfairelinux.com>
Acked-by: Xu Yilun <yilun.xu@intel.com>
Link: https://lore.kernel.org/r/20240321220447.3260065-5-charles.perry@savoirfairelinux.com
Signed-off-by: Xu Yilun <yilun.xu@linux.intel.com>
This commit is contained in:
Charles Perry 2024-03-21 18:04:36 -04:00 committed by Xu Yilun
parent 104712a086
commit 4a1f12b5b5
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GPG Key ID: FCB70381A4A08CDA
1 changed files with 18 additions and 2 deletions
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20
drivers/fpga/xilinx-core.c
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@ -171,6 +171,20 @@ static int xilinx_core_write_complete(struct fpga_manager *mgr,
return -ETIMEDOUT;
}
static inline struct gpio_desc *
xilinx_core_devm_gpiod_get(struct device *dev, const char *con_id,
const char *legacy_con_id, enum gpiod_flags flags)
{
struct gpio_desc *desc;
desc = devm_gpiod_get(dev, con_id, flags);
if (IS_ERR(desc) && PTR_ERR(desc) == -ENOENT &&
of_device_is_compatible(dev->of_node, "xlnx,fpga-slave-serial"))
desc = devm_gpiod_get(dev, legacy_con_id, flags);
return desc;
}
static const struct fpga_manager_ops xilinx_core_ops = {
.state = xilinx_core_state,
.write_init = xilinx_core_write_init,
@ -186,12 +200,14 @@ int xilinx_core_probe(struct xilinx_fpga_core *core)
return -EINVAL;
/* PROGRAM_B is active low */
core->prog_b = devm_gpiod_get(core->dev, "prog_b", GPIOD_OUT_LOW);
core->prog_b = xilinx_core_devm_gpiod_get(core->dev, "prog", "prog_b",
GPIOD_OUT_LOW);
if (IS_ERR(core->prog_b))
return dev_err_probe(core->dev, PTR_ERR(core->prog_b),
"Failed to get PROGRAM_B gpio\n");
core->init_b = devm_gpiod_get_optional(core->dev, "init-b", GPIOD_IN);
core->init_b = xilinx_core_devm_gpiod_get(core->dev, "init", "init-b",
GPIOD_IN);
if (IS_ERR(core->init_b))
return dev_err_probe(core->dev, PTR_ERR(core->init_b),
"Failed to get INIT_B gpio\n");