2022-07-01 19:40:45

by Colin Foster

Subject: [PATCH v12 net-next 4/9] 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 <[email protected]>
---
drivers/pinctrl/pinctrl-ocelot.c | 9 ++-------
1 file changed, 2 insertions(+), 7 deletions(-)

diff --git a/drivers/pinctrl/pinctrl-ocelot.c b/drivers/pinctrl/pinctrl-ocelot.c
index d18047d2306d..2e51d313c049 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>
@@ -1918,7 +1919,6 @@ 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,
@@ -1938,16 +1938,11 @@ 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);
+ info->map = ocelot_regmap_from_resource(pdev, 0, &regmap_config);
if (IS_ERR(info->map)) {
dev_err(dev, "Failed to create regmap\n");
return PTR_ERR(info->map);
--
2.25.1