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authorColin Foster <colin.foster@in-advantage.com>2022-09-05 19:21:27 +0300
committerLee Jones <lee@kernel.org>2022-09-09 09:54:34 +0300
commit181f604b33cd8fce06b2497178c71548db1e1934 (patch)
treeda07ca77d0237c6f7d4142724359b61db28ac2f7 /drivers/pinctrl/pinctrl-ocelot.c
parent43a108c6492232cd2e85fbd4874c0500158b8c8b (diff)
downloadlinux-181f604b33cd8fce06b2497178c71548db1e1934.tar.xz
pinctrl: ocelot: add ability to be used in a non-mmio configuration
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 <andy.shevchenko@gmail.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Lee Jones <lee@kernel.org> Link: https://lore.kernel.org/r/20220905162132.2943088-4-colin.foster@in-advantage.com
Diffstat (limited to 'drivers/pinctrl/pinctrl-ocelot.c')
-rw-r--r--drivers/pinctrl/pinctrl-ocelot.c16
1 files 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, &regmap_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, &regmap_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;