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path: root/drivers/pinctrl/pinctrl-falcon.c
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Diffstat (limited to 'drivers/pinctrl/pinctrl-falcon.c')
-rw-r--r--drivers/pinctrl/pinctrl-falcon.c123
1 files changed, 84 insertions, 39 deletions
diff --git a/drivers/pinctrl/pinctrl-falcon.c b/drivers/pinctrl/pinctrl-falcon.c
index 8ed20e84cb0..2e62689b5e9 100644
--- a/drivers/pinctrl/pinctrl-falcon.c
+++ b/drivers/pinctrl/pinctrl-falcon.c
@@ -75,6 +75,7 @@ enum falcon_mux {
FALCON_MUX_GPIO = 0,
FALCON_MUX_RST,
FALCON_MUX_NTR,
+ FALCON_MUX_PPS,
FALCON_MUX_MDIO,
FALCON_MUX_LED,
FALCON_MUX_SPI,
@@ -114,7 +115,7 @@ static struct ltq_mfp_pin falcon_mfp[] = {
MFP_FALCON(GPIO2, GPIO, GPIO, NONE, NONE),
MFP_FALCON(GPIO3, GPIO, GPIO, NONE, NONE),
MFP_FALCON(GPIO4, NTR, GPIO, NONE, NONE),
- MFP_FALCON(GPIO5, NTR, GPIO, NONE, NONE),
+ MFP_FALCON(GPIO5, NTR, GPIO, PPS, NONE),
MFP_FALCON(GPIO6, RST, GPIO, NONE, NONE),
MFP_FALCON(GPIO7, MDIO, GPIO, NONE, NONE),
MFP_FALCON(GPIO8, MDIO, GPIO, NONE, NONE),
@@ -168,9 +169,10 @@ static struct ltq_mfp_pin falcon_mfp[] = {
static const unsigned pins_por[] = {GPIO0};
static const unsigned pins_ntr[] = {GPIO4};
static const unsigned pins_ntr8k[] = {GPIO5};
+static const unsigned pins_pps[] = {GPIO5};
static const unsigned pins_hrst[] = {GPIO6};
static const unsigned pins_mdio[] = {GPIO7, GPIO8};
-static const unsigned pins_bled[] = {GPIO7, GPIO10, GPIO11,
+static const unsigned pins_bled[] = {GPIO9, GPIO10, GPIO11,
GPIO12, GPIO13, GPIO14};
static const unsigned pins_asc0[] = {GPIO32, GPIO33};
static const unsigned pins_spi[] = {GPIO34, GPIO35, GPIO36};
@@ -186,6 +188,7 @@ static struct ltq_pin_group falcon_grps[] = {
GRP_MUX("por", RST, pins_por),
GRP_MUX("ntr", NTR, pins_ntr),
GRP_MUX("ntr8k", NTR, pins_ntr8k),
+ GRP_MUX("pps", PPS, pins_pps),
GRP_MUX("hrst", RST, pins_hrst),
GRP_MUX("mdio", MDIO, pins_mdio),
GRP_MUX("bootled", LED, pins_bled),
@@ -201,7 +204,7 @@ static struct ltq_pin_group falcon_grps[] = {
};
static const char * const ltq_rst_grps[] = {"por", "hrst"};
-static const char * const ltq_ntr_grps[] = {"ntr", "ntr8k"};
+static const char * const ltq_ntr_grps[] = {"ntr", "ntr8k", "pps"};
static const char * const ltq_mdio_grps[] = {"mdio"};
static const char * const ltq_bled_grps[] = {"bootled"};
static const char * const ltq_asc_grps[] = {"asc0", "asc1"};
@@ -235,7 +238,8 @@ static int falcon_pinconf_group_get(struct pinctrl_dev *pctrldev,
}
static int falcon_pinconf_group_set(struct pinctrl_dev *pctrldev,
- unsigned group, unsigned long config)
+ unsigned group, unsigned long *configs,
+ unsigned num_configs)
{
return -ENOTSUPP;
}
@@ -276,45 +280,84 @@ static int falcon_pinconf_get(struct pinctrl_dev *pctrldev,
}
static int falcon_pinconf_set(struct pinctrl_dev *pctrldev,
- unsigned pin, unsigned long config)
+ unsigned pin, unsigned long *configs,
+ unsigned num_configs)
{
- enum ltq_pinconf_param param = LTQ_PINCONF_UNPACK_PARAM(config);
- int arg = LTQ_PINCONF_UNPACK_ARG(config);
+ enum ltq_pinconf_param param;
+ int arg;
struct ltq_pinmux_info *info = pinctrl_dev_get_drvdata(pctrldev);
void __iomem *mem = info->membase[PORT(pin)];
u32 reg;
+ int i;
- switch (param) {
- case LTQ_PINCONF_PARAM_DRIVE_CURRENT:
- reg = LTQ_PADC_DCC;
- break;
-
- case LTQ_PINCONF_PARAM_SLEW_RATE:
- reg = LTQ_PADC_SRC;
- break;
-
- case LTQ_PINCONF_PARAM_PULL:
- if (arg == 1)
- reg = LTQ_PADC_PDEN;
- else
- reg = LTQ_PADC_PUEN;
- break;
+ for (i = 0; i < num_configs; i++) {
+ param = LTQ_PINCONF_UNPACK_PARAM(configs[i]);
+ arg = LTQ_PINCONF_UNPACK_ARG(configs[i]);
+
+ switch (param) {
+ case LTQ_PINCONF_PARAM_DRIVE_CURRENT:
+ reg = LTQ_PADC_DCC;
+ break;
+
+ case LTQ_PINCONF_PARAM_SLEW_RATE:
+ reg = LTQ_PADC_SRC;
+ break;
+
+ case LTQ_PINCONF_PARAM_PULL:
+ if (arg == 1)
+ reg = LTQ_PADC_PDEN;
+ else
+ reg = LTQ_PADC_PUEN;
+ break;
+
+ default:
+ pr_err("%s: Invalid config param %04x\n",
+ pinctrl_dev_get_name(pctrldev), param);
+ return -ENOTSUPP;
+ }
- default:
- pr_err("%s: Invalid config param %04x\n",
- pinctrl_dev_get_name(pctrldev), param);
- return -ENOTSUPP;
- }
+ pad_w32(mem, BIT(PORT_PIN(pin)), reg);
+ if (!(pad_r32(mem, reg) & BIT(PORT_PIN(pin))))
+ return -ENOTSUPP;
+ } /* for each config */
- pad_w32(mem, BIT(PORT_PIN(pin)), reg);
- if (!(pad_r32(mem, reg) & BIT(PORT_PIN(pin))))
- return -ENOTSUPP;
return 0;
}
static void falcon_pinconf_dbg_show(struct pinctrl_dev *pctrldev,
struct seq_file *s, unsigned offset)
{
+ unsigned long config;
+ struct pin_desc *desc;
+
+ struct ltq_pinmux_info *info = pinctrl_dev_get_drvdata(pctrldev);
+ int port = PORT(offset);
+
+ seq_printf(s, " (port %d) mux %d -- ", port,
+ pad_r32(info->membase[port], LTQ_PADC_MUX(PORT_PIN(offset))));
+
+ config = LTQ_PINCONF_PACK(LTQ_PINCONF_PARAM_PULL, 0);
+ if (!falcon_pinconf_get(pctrldev, offset, &config))
+ seq_printf(s, "pull %d ",
+ (int)LTQ_PINCONF_UNPACK_ARG(config));
+
+ config = LTQ_PINCONF_PACK(LTQ_PINCONF_PARAM_DRIVE_CURRENT, 0);
+ if (!falcon_pinconf_get(pctrldev, offset, &config))
+ seq_printf(s, "drive-current %d ",
+ (int)LTQ_PINCONF_UNPACK_ARG(config));
+
+ config = LTQ_PINCONF_PACK(LTQ_PINCONF_PARAM_SLEW_RATE, 0);
+ if (!falcon_pinconf_get(pctrldev, offset, &config))
+ seq_printf(s, "slew-rate %d ",
+ (int)LTQ_PINCONF_UNPACK_ARG(config));
+
+ desc = pin_desc_get(pctrldev, offset);
+ if (desc) {
+ if (desc->gpio_owner)
+ seq_printf(s, " owner: %s", desc->gpio_owner);
+ } else {
+ seq_printf(s, " not registered");
+ }
}
static void falcon_pinconf_group_dbg_show(struct pinctrl_dev *pctrldev,
@@ -322,7 +365,7 @@ static void falcon_pinconf_group_dbg_show(struct pinctrl_dev *pctrldev,
{
}
-static struct pinconf_ops falcon_pinconf_ops = {
+static const struct pinconf_ops falcon_pinconf_ops = {
.pin_config_get = falcon_pinconf_get,
.pin_config_set = falcon_pinconf_set,
.pin_config_group_get = falcon_pinconf_group_get,
@@ -360,6 +403,8 @@ static const struct ltq_cfg_param falcon_cfg_params[] = {
static struct ltq_pinmux_info falcon_info = {
.desc = &falcon_pctrl_desc,
.apply_mux = falcon_mux_apply,
+ .params = falcon_cfg_params,
+ .num_params = ARRAY_SIZE(falcon_cfg_params),
};
@@ -398,6 +443,9 @@ static int pinctrl_falcon_probe(struct platform_device *pdev)
u32 avail;
int pins;
+ if (!of_device_is_available(np))
+ continue;
+
if (!ppdev) {
dev_err(&pdev->dev, "failed to find pad pdev\n");
continue;
@@ -411,14 +459,11 @@ static int pinctrl_falcon_probe(struct platform_device *pdev)
dev_err(&ppdev->dev, "failed to get clock\n");
return PTR_ERR(falcon_info.clk[*bank]);
}
- falcon_info.membase[*bank] =
- devm_request_and_ioremap(&pdev->dev, &res);
- if (!falcon_info.membase[*bank]) {
- dev_err(&pdev->dev,
- "Failed to remap memory for bank %d\n",
- *bank);
- return -ENOMEM;
- }
+ falcon_info.membase[*bank] = devm_ioremap_resource(&pdev->dev,
+ &res);
+ if (IS_ERR(falcon_info.membase[*bank]))
+ return PTR_ERR(falcon_info.membase[*bank]);
+
avail = pad_r32(falcon_info.membase[*bank],
LTQ_PADC_AVAIL);
pins = fls(avail);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-10 00:19:19 +0000