pinctrl: ralink: move ralink architecture pinmux header into the driver

Ralink architecture is making use of the header located in
'arch/mips/include/asm/mach-ralink/pinmux.h' to stablish the
mechanisms to make derived SoCs to set its pin functions and
groups. In order to move all architecture pinmux into a more
accurate place which is 'drivers/pinctrl/ralink' we have to
first of all move this file also there with a small modification
which creates 'rt2880_pinmux_init' function to allow SoCs pinctrl
drivers to pass its configuration to the common code located in
'pinctrl-rt2880.c' file.

Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Link: https://lore.kernel.org/r/20210604115159.8834-2-sergio.paracuellos@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

diff --git a/arch/mips/ralink/prom.c b/arch/mips/ralink/prom.c
index 25728de..aaac1e6 100644 (file)
--- a/arch/mips/ralink/prom.c
+++ b/arch/mips/ralink/prom.c
@@ -18,7 +18,6 @@
 #include "common.h"
 
 struct ralink_soc_info soc_info;
-struct rt2880_pmx_group *rt2880_pinmux_data = NULL;
 
 enum ralink_soc_type ralink_soc;
 EXPORT_SYMBOL_GPL(ralink_soc);

diff --git a/drivers/pinctrl/ralink/pinctrl-rt2880.c b/drivers/pinctrl/ralink/pinctrl-rt2880.c
index 1f4bca8..abe31d4 100644 (file)
--- a/drivers/pinctrl/ralink/pinctrl-rt2880.c
+++ b/drivers/pinctrl/ralink/pinctrl-rt2880.c
@@ -17,9 +17,9 @@
 #include <linux/pinctrl/machine.h>
 
 #include <asm/mach-ralink/ralink_regs.h>
-#include <asm/mach-ralink/pinmux.h>
 #include <asm/mach-ralink/mt7620.h>
 
+#include "pinmux.h"
 #include "../core.h"
 #include "../pinctrl-utils.h"
 
@@ -311,13 +311,14 @@ static int rt2880_pinmux_pins(struct rt2880_priv *p)
        return 0;
 }
 
-static int rt2880_pinmux_probe(struct platform_device *pdev)
+int rt2880_pinmux_init(struct platform_device *pdev,
+                      struct rt2880_pmx_group *data)
 {
        struct rt2880_priv *p;
        struct pinctrl_dev *dev;
        int err;
 
-       if (!rt2880_pinmux_data)
+       if (!data)
                return -ENOTSUPP;
 
        /* setup the private data */
@@ -327,7 +328,7 @@ static int rt2880_pinmux_probe(struct platform_device *pdev)
 
        p->dev = &pdev->dev;
        p->desc = &rt2880_pctrl_desc;
-       p->groups = rt2880_pinmux_data;
+       p->groups = data;
        platform_set_drvdata(pdev, p);
 
        /* init the device */
@@ -346,24 +347,3 @@ static int rt2880_pinmux_probe(struct platform_device *pdev)
 
        return PTR_ERR_OR_ZERO(dev);
 }
-
-static const struct of_device_id rt2880_pinmux_match[] = {
-       { .compatible = "ralink,rt2880-pinmux" },
-       {},
-};
-MODULE_DEVICE_TABLE(of, rt2880_pinmux_match);
-
-static struct platform_driver rt2880_pinmux_driver = {
-       .probe = rt2880_pinmux_probe,
-       .driver = {
-               .name = "rt2880-pinmux",
-               .of_match_table = rt2880_pinmux_match,
-       },
-};
-
-static int __init rt2880_pinmux_init(void)
-{
-       return platform_driver_register(&rt2880_pinmux_driver);
-}
-
-core_initcall_sync(rt2880_pinmux_init);

diff --git a/arch/mips/include/asm/mach-ralink/pinmux.h b/drivers/pinctrl/ralink/pinmux.h
similarity index 91%
rename from arch/mips/include/asm/mach-ralink/pinmux.h
rename to drivers/pinctrl/ralink/pinmux.h
index 0483093..0046abe 100644 (file)
--- a/arch/mips/include/asm/mach-ralink/pinmux.h
+++ b/drivers/pinctrl/ralink/pinmux.h
@@ -47,6 +47,7 @@ struct rt2880_pmx_group {
        int func_count;
 };
 
-extern struct rt2880_pmx_group *rt2880_pinmux_data;
+int rt2880_pinmux_init(struct platform_device *pdev,
+                      struct rt2880_pmx_group *data);
 
 #endif