linux-kernel - [PATCH v3 06/11] pinctrl: pinmux: Embed struct pinfunction into struct function

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Date: Thu, 30 May 2024 11:55:15 +0300
From: Andy Shevchenko <andy.shevchenko@...il.com>
To: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
	Linus Walleij <linus.walleij@...aro.org>,
	AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>,
	Daniel Golle <daniel@...rotopia.org>,
	linux-gpio@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	imx@...ts.linux.dev,
	linux-arm-kernel@...ts.infradead.org,
	linux-mediatek@...ts.infradead.org,
	linux-mips@...r.kernel.org
Cc: Dong Aisheng <aisheng.dong@....com>,
	Fabio Estevam <festevam@...il.com>,
	Shawn Guo <shawnguo@...nel.org>,
	Jacky Bai <ping.bai@....com>,
	Pengutronix Kernel Team <kernel@...gutronix.de>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Sean Wang <sean.wang@...nel.org>,
	Matthias Brugger <matthias.bgg@...il.com>,
	Paul Cercueil <paul@...pouillou.net>,
	Lakshmi Sowjanya D <lakshmi.sowjanya.d@...el.com>,
	Andy Shevchenko <andy.shevchenko@...il.com>
Subject: [PATCH v3 06/11] pinctrl: pinmux: Embed struct pinfunction into struct function_desc

From: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>

struct function_desc is a particular version of the struct pinfunction
with associated opaque data. Start switching pin control core and
drivers to use it explicitly.

Signed-off-by: Andy Shevchenko <andy.shevchenko@...il.com>
---
 drivers/pinctrl/pinmux.c | 10 +++++-----
 drivers/pinctrl/pinmux.h |  5 ++++-
 2 files changed, 9 insertions(+), 6 deletions(-)

diff --git a/drivers/pinctrl/pinmux.c b/drivers/pinctrl/pinmux.c
index 8d69fa1b0bff..aae71a37219b 100644
--- a/drivers/pinctrl/pinmux.c
+++ b/drivers/pinctrl/pinmux.c
@@ -796,7 +796,7 @@ pinmux_generic_get_function_name(struct pinctrl_dev *pctldev,
 	if (!function)
 		return NULL;
 
-	return function->name;
+	return function->func.name;
 }
 EXPORT_SYMBOL_GPL(pinmux_generic_get_function_name);
 
@@ -805,12 +805,12 @@ EXPORT_SYMBOL_GPL(pinmux_generic_get_function_name);
  * @pctldev: pin controller device
  * @selector: function number
  * @groups: array of pin groups
- * @num_groups: number of pin groups
+ * @ngroups: number of pin groups
  */
 int pinmux_generic_get_function_groups(struct pinctrl_dev *pctldev,
 				       unsigned int selector,
 				       const char * const **groups,
-				       unsigned int * const num_groups)
+				       unsigned int * const ngroups)
 {
 	struct function_desc *function;
 
@@ -821,8 +821,8 @@ int pinmux_generic_get_function_groups(struct pinctrl_dev *pctldev,
 			__func__, selector);
 		return -EINVAL;
 	}
-	*groups = function->group_names;
-	*num_groups = function->num_group_names;
+	*groups = function->func.groups;
+	*ngroups = function->func.ngroups;
 
 	return 0;
 }
diff --git a/drivers/pinctrl/pinmux.h b/drivers/pinctrl/pinmux.h
index 52e6e4db88b4..9b57c1cc9d50 100644
--- a/drivers/pinctrl/pinmux.h
+++ b/drivers/pinctrl/pinmux.h
@@ -133,12 +133,14 @@ static inline void pinmux_init_device_debugfs(struct dentry *devroot,
 
 /**
  * struct function_desc - generic function descriptor
+ * @func: generic data of the pin function (name and groups of pins)
  * @name: name of the function
  * @group_names: array of pin group names
  * @num_group_names: number of pin group names
  * @data: pin controller driver specific data
  */
 struct function_desc {
+	struct pinfunction func;
 	const char *name;
 	const char * const *group_names;
 	int num_group_names;
@@ -148,6 +150,7 @@ struct function_desc {
 /* Convenient macro to define a generic pin function descriptor */
 #define PINCTRL_FUNCTION_DESC(_name, _grps, _num_grps, _data)	\
 (struct function_desc) {					\
+	.func = PINCTRL_PINFUNCTION(_name, _grps, _num_grps),	\
 	.name = _name,						\
 	.group_names = _grps,					\
 	.num_group_names = _num_grps,				\
@@ -163,7 +166,7 @@ pinmux_generic_get_function_name(struct pinctrl_dev *pctldev,
 int pinmux_generic_get_function_groups(struct pinctrl_dev *pctldev,
 				       unsigned int selector,
 				       const char * const **groups,
-				       unsigned int * const num_groups);
+				       unsigned int * const ngroups);
 
 struct function_desc *pinmux_generic_get_function(struct pinctrl_dev *pctldev,
 						  unsigned int selector);
-- 
2.45.1