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gpio: imx_rgpio2p: support one address

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The i.MX8ULP/93 gpio dt-schema have been updated to only have one
address entry, update the driver to support it.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
This commit is contained in:
Peng Fan 2024-04-12 22:24:51 +08:00 • committed by Fabio Estevam
parent b03b49046a
commit 51cfa66f2c
1 changed files with 38 additions and 4 deletions
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42
drivers/gpio/imx_rgpio2p.c
View file

@ -21,6 +21,12 @@ enum imx_rgpio2p_direction {
#define GPIO_PER_BANK 32
struct imx_rgpio2p_soc_data {
bool have_dual_base;
};
#define IMX8ULP_GPIO_BASE_OFF 0x40
struct imx_rgpio2p_data {
struct gpio_regs *regs;
};
@ -165,6 +171,9 @@ static int imx_rgpio2p_probe(struct udevice *dev)
static int imx_rgpio2p_bind(struct udevice *dev)
{
struct imx_rgpio2p_plat *plat = dev_get_plat(dev);
struct imx_rgpio2p_soc_data *data =
(struct imx_rgpio2p_soc_data *)dev_get_driver_data(dev);
bool dual_base = data->have_dual_base;
fdt_addr_t addr;
/*
@ -176,9 +185,26 @@ static int imx_rgpio2p_bind(struct udevice *dev)
if (plat)
return 0;
addr = devfdt_get_addr_index(dev, 1);
if (addr == FDT_ADDR_T_NONE)
return -EINVAL;
/*
* Handle legacy compatible combinations which used two reg values
* for the i.MX8ULP and i.MX93.
*/
if (device_is_compatible(dev, "fsl,imx7ulp-gpio") &&
(device_is_compatible(dev, "fsl,imx93-gpio") ||
(device_is_compatible(dev, "fsl,imx8ulp-gpio"))))
dual_base = true;
if (dual_base) {
addr = devfdt_get_addr_index(dev, 1);
if (addr == FDT_ADDR_T_NONE)
return -EINVAL;
} else {
addr = devfdt_get_addr_index(dev, 0);
if (addr == FDT_ADDR_T_NONE)
return -EINVAL;
addr += IMX8ULP_GPIO_BASE_OFF;
}
/*
* TODO:
@ -202,9 +228,17 @@ static int imx_rgpio2p_bind(struct udevice *dev)
return 0;
}
static struct imx_rgpio2p_soc_data imx7ulp_data = {
.have_dual_base = true,
};
static struct imx_rgpio2p_soc_data imx8ulp_data = {
.have_dual_base = false,
};
static const struct udevice_id imx_rgpio2p_ids[] = {
{ .compatible = "fsl,imx7ulp-gpio" },
{ .compatible = "fsl,imx7ulp-gpio", .data = (ulong)&imx7ulp_data },
{ .compatible = "fsl,imx8ulp-gpio", .data = (ulong)&imx8ulp_data },
{ }
};