[PATCH v16 mfd 3/8] pinctrl: ocelot: add ability to be used in a non-mmio configuration
From: Colin Foster <colin.foster@in-advantage.com>
Date: 2022-08-15 00:56:49
Also in:
linux-devicetree, linux-gpio, lkml, netdev
Subsystem:
pin control subsystem, the rest · Maintainers:
Linus Walleij, Linus Torvalds
There are a few Ocelot chips that contain pinctrl logic, but can be
controlled externally. Specifically the VSC7511, 7512, 7513 and 7514. In
the externally controlled configurations these registers are not
memory-mapped.
Add support for these non-memory-mapped configurations.
Signed-off-by: Colin Foster <colin.foster@in-advantage.com>
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Andy Shevchenko <redacted>
Acked-by: Linus Walleij <redacted>
---
v16
* Add Andy Reviewed-by tag
v15
* No changes
v14
* Add Reviewed and Acked tags
---
drivers/pinctrl/pinctrl-ocelot.c | 16 +++++-----------
1 file changed, 5 insertions(+), 11 deletions(-)
diff --git a/drivers/pinctrl/pinctrl-ocelot.c b/drivers/pinctrl/pinctrl-ocelot.c
index c5fd154990c8..340ca2373429 100644
--- a/drivers/pinctrl/pinctrl-ocelot.c
+++ b/drivers/pinctrl/pinctrl-ocelot.c@@ -10,6 +10,7 @@ #include <linux/gpio/driver.h> #include <linux/interrupt.h> #include <linux/io.h> +#include <linux/mfd/ocelot.h> #include <linux/of_device.h> #include <linux/of_irq.h> #include <linux/of_platform.h>
@@ -1975,7 +1976,6 @@ static int ocelot_pinctrl_probe(struct platform_device *pdev) struct ocelot_pinctrl *info; struct reset_control *reset; struct regmap *pincfg; - void __iomem *base; int ret; struct regmap_config regmap_config = { .reg_bits = 32,
@@ -2004,20 +2004,14 @@ static int ocelot_pinctrl_probe(struct platform_device *pdev) "Failed to get reset\n"); reset_control_reset(reset); - base = devm_ioremap_resource(dev, - platform_get_resource(pdev, IORESOURCE_MEM, 0)); - if (IS_ERR(base)) - return PTR_ERR(base); - info->stride = 1 + (info->desc->npins - 1) / 32; regmap_config.max_register = OCELOT_GPIO_SD_MAP * info->stride + 15 * 4; - info->map = devm_regmap_init_mmio(dev, base, ®map_config); - if (IS_ERR(info->map)) { - dev_err(dev, "Failed to create regmap\n"); - return PTR_ERR(info->map); - } + info->map = ocelot_regmap_from_resource(pdev, 0, ®map_config); + if (IS_ERR(info->map)) + return dev_err_probe(dev, PTR_ERR(info->map), + "Failed to create regmap\n"); dev_set_drvdata(dev, info->map); info->dev = dev;
--
2.25.1
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