diff mbox series

[v15,mfd,4/9] pinctrl: ocelot: add ability to be used in a non-mmio configuration

Message ID 20220803054728.1541104-5-colin.foster@in-advantage.com (mailing list archive)
State Superseded
Headers show
Series add support for VSC7512 control over SPI | expand

Checks

Context Check Description
netdev/tree_selection success Guessing tree name failed - patch did not apply

Commit Message

Colin Foster Aug. 3, 2022, 5:47 a.m. UTC 
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>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
---

(No changes since v14)

v14
    * Add Reviewed and Acked tags

---
 drivers/pinctrl/pinctrl-ocelot.c | 16 +++++-----------
 1 file changed, 5 insertions(+), 11 deletions(-)

Comments

Andy Shevchenko Aug. 3, 2022, 11:32 a.m. UTC | #1 
On Wed, Aug 3, 2022 at 7:47 AM Colin Foster
<colin.foster@in-advantage.com> wrote:
>
> 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.

FWIW,
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>

> Signed-off-by: Colin Foster <colin.foster@in-advantage.com>
> Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
> Acked-by: Linus Walleij <linus.walleij@linaro.org>
> ---
>
> (No changes since v14)
>
> 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 d18047d2306d..80a3bba520cb 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,
> @@ -1938,20 +1938,14 @@ 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;
>
> --
> 2.25.1
>
diff mbox series

Patch

diff --git a/drivers/pinctrl/pinctrl-ocelot.c b/drivers/pinctrl/pinctrl-ocelot.c
index d18047d2306d..80a3bba520cb 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,
@@ -1938,20 +1938,14 @@  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;