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Message-Id: <20250724-pinctrl-gpio-pinfuncs-v3-9-af4db9302de4@linaro.org>
Date: Thu, 24 Jul 2025 11:24:37 +0200
From: Bartosz Golaszewski <brgl@...ev.pl>
To: Linus Walleij <linus.walleij@...aro.org>,
Bjorn Andersson <andersson@...nel.org>,
Konrad Dybcio <konradybcio@...nel.org>,
Alexey Klimov <alexey.klimov@...aro.org>,
Lorenzo Bianconi <lorenzo@...nel.org>, Sean Wang <sean.wang@...nel.org>,
Matthias Brugger <matthias.bgg@...il.com>,
AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>,
Paul Cercueil <paul@...pouillou.net>, Kees Cook <kees@...nel.org>,
Andy Shevchenko <andy@...nel.org>,
Andrew Morton <akpm@...ux-foundation.org>,
David Hildenbrand <david@...hat.com>,
Lorenzo Stoakes <lorenzo.stoakes@...cle.com>,
"Liam R. Howlett" <Liam.Howlett@...cle.com>,
Vlastimil Babka <vbabka@...e.cz>, Mike Rapoport <rppt@...nel.org>,
Suren Baghdasaryan <surenb@...gle.com>, Michal Hocko <mhocko@...e.com>,
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>,
NXP S32 Linux Team <s32@....com>, Sascha Hauer <s.hauer@...gutronix.de>,
Tony Lindgren <tony@...mide.com>,
Haojian Zhuang <haojian.zhuang@...aro.org>,
Geert Uytterhoeven <geert+renesas@...der.be>
Cc: linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-arm-msm@...r.kernel.org, linux-mediatek@...ts.infradead.org,
linux-arm-kernel@...ts.infradead.org, linux-mips@...r.kernel.org,
linux-hardening@...r.kernel.org, linux-mm@...ck.org, imx@...ts.linux.dev,
linux-omap@...r.kernel.org, linux-renesas-soc@...r.kernel.org,
Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Subject: [PATCH v3 09/15] pinctrl: constify pinmux_generic_get_function()
From: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
With all users of struct function_desc limited to only accessing it using
the dedicated function and never modifying it, we can now constify the
return value of pinmux_generic_get_function() treewide.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
---
drivers/pinctrl/freescale/pinctrl-imx.c | 2 +-
drivers/pinctrl/mediatek/pinctrl-airoha.c | 2 +-
drivers/pinctrl/mediatek/pinctrl-moore.c | 2 +-
drivers/pinctrl/pinctrl-equilibrium.c | 2 +-
drivers/pinctrl/pinctrl-ingenic.c | 2 +-
drivers/pinctrl/pinctrl-keembay.c | 2 +-
drivers/pinctrl/pinctrl-single.c | 4 ++--
drivers/pinctrl/pinmux.c | 4 ++--
drivers/pinctrl/pinmux.h | 4 ++--
drivers/pinctrl/renesas/pinctrl-rza1.c | 2 +-
drivers/pinctrl/renesas/pinctrl-rza2.c | 2 +-
drivers/pinctrl/renesas/pinctrl-rzg2l.c | 2 +-
drivers/pinctrl/renesas/pinctrl-rzv2m.c | 2 +-
13 files changed, 16 insertions(+), 16 deletions(-)
diff --git a/drivers/pinctrl/freescale/pinctrl-imx.c b/drivers/pinctrl/freescale/pinctrl-imx.c
index d5d42c9ad5fe9dcf7c25ad393688e714b02db678..9ed84479a5b43871861f46fe1326f1dfadc7f63c 100644
--- a/drivers/pinctrl/freescale/pinctrl-imx.c
+++ b/drivers/pinctrl/freescale/pinctrl-imx.c
@@ -245,7 +245,7 @@ static int imx_pmx_set(struct pinctrl_dev *pctldev, unsigned selector,
{
struct imx_pinctrl *ipctl = pinctrl_dev_get_drvdata(pctldev);
const struct imx_pinctrl_soc_info *info = ipctl->info;
- struct function_desc *func;
+ const struct function_desc *func;
struct group_desc *grp;
struct imx_pin *pin;
unsigned int npins;
diff --git a/drivers/pinctrl/mediatek/pinctrl-airoha.c b/drivers/pinctrl/mediatek/pinctrl-airoha.c
index aa71e02b661c992c117418af910ae157c4f75fff..9a95577439a1b50607427756a713c8122c7c4af1 100644
--- a/drivers/pinctrl/mediatek/pinctrl-airoha.c
+++ b/drivers/pinctrl/mediatek/pinctrl-airoha.c
@@ -2446,7 +2446,7 @@ static int airoha_pinmux_set_mux(struct pinctrl_dev *pctrl_dev,
{
struct airoha_pinctrl *pinctrl = pinctrl_dev_get_drvdata(pctrl_dev);
const struct airoha_pinctrl_func *func;
- struct function_desc *desc;
+ const struct function_desc *desc;
struct group_desc *grp;
int i;
diff --git a/drivers/pinctrl/mediatek/pinctrl-moore.c b/drivers/pinctrl/mediatek/pinctrl-moore.c
index 68710dab2aa3ff649bb0cf579122ecaa0c257fdf..ec0005246c19a156079807acddc93bcb767d1222 100644
--- a/drivers/pinctrl/mediatek/pinctrl-moore.c
+++ b/drivers/pinctrl/mediatek/pinctrl-moore.c
@@ -43,7 +43,7 @@ static int mtk_pinmux_set_mux(struct pinctrl_dev *pctldev,
unsigned int selector, unsigned int group)
{
struct mtk_pinctrl *hw = pinctrl_dev_get_drvdata(pctldev);
- struct function_desc *func;
+ const struct function_desc *func;
struct group_desc *grp;
int i, err;
diff --git a/drivers/pinctrl/pinctrl-equilibrium.c b/drivers/pinctrl/pinctrl-equilibrium.c
index fce804d42e7d7f9233b2da0fb26e482170629424..18f0da58c96d4f0fad6535fd88e69fc8acf96a94 100644
--- a/drivers/pinctrl/pinctrl-equilibrium.c
+++ b/drivers/pinctrl/pinctrl-equilibrium.c
@@ -319,7 +319,7 @@ static int eqbr_pinmux_set_mux(struct pinctrl_dev *pctldev,
unsigned int selector, unsigned int group)
{
struct eqbr_pinctrl_drv_data *pctl = pinctrl_dev_get_drvdata(pctldev);
- struct function_desc *func;
+ const struct function_desc *func;
struct group_desc *grp;
unsigned int *pinmux;
int i;
diff --git a/drivers/pinctrl/pinctrl-ingenic.c b/drivers/pinctrl/pinctrl-ingenic.c
index 0ee8554c5446c4167c9b0e6b9397a2507ca57419..f89f8ec06ac63227930a38dbc80f00333cc15b48 100644
--- a/drivers/pinctrl/pinctrl-ingenic.c
+++ b/drivers/pinctrl/pinctrl-ingenic.c
@@ -4000,7 +4000,7 @@ static int ingenic_pinmux_set_mux(struct pinctrl_dev *pctldev,
unsigned int selector, unsigned int group)
{
struct ingenic_pinctrl *jzpc = pinctrl_dev_get_drvdata(pctldev);
- struct function_desc *func;
+ const struct function_desc *func;
struct group_desc *grp;
unsigned int i;
uintptr_t mode;
diff --git a/drivers/pinctrl/pinctrl-keembay.c b/drivers/pinctrl/pinctrl-keembay.c
index 060d64ff3d9f01ecd3374935af66b55c38f60d67..87d081226f45467d9c92cc9e8ea63d41fd2f0fcb 100644
--- a/drivers/pinctrl/pinctrl-keembay.c
+++ b/drivers/pinctrl/pinctrl-keembay.c
@@ -935,7 +935,7 @@ static int keembay_set_mux(struct pinctrl_dev *pctldev, unsigned int fun_sel,
unsigned int grp_sel)
{
struct keembay_pinctrl *kpc = pinctrl_dev_get_drvdata(pctldev);
- struct function_desc *func;
+ const struct function_desc *func;
struct group_desc *grp;
unsigned int val;
u8 pin_mode;
diff --git a/drivers/pinctrl/pinctrl-single.c b/drivers/pinctrl/pinctrl-single.c
index 5cda6201b60f53e62f3f50b8641ec894106111e0..c9adf5fcb1c76445d4812de449edf09878771a46 100644
--- a/drivers/pinctrl/pinctrl-single.c
+++ b/drivers/pinctrl/pinctrl-single.c
@@ -336,7 +336,7 @@ static int pcs_get_function(struct pinctrl_dev *pctldev, unsigned pin,
struct pcs_device *pcs = pinctrl_dev_get_drvdata(pctldev);
struct pin_desc *pdesc = pin_desc_get(pctldev, pin);
const struct pinctrl_setting_mux *setting;
- struct function_desc *function;
+ const struct function_desc *function;
unsigned fselector;
/* If pin is not described in DTS & enabled, mux_setting is NULL. */
@@ -360,7 +360,7 @@ static int pcs_set_mux(struct pinctrl_dev *pctldev, unsigned fselector,
unsigned group)
{
struct pcs_device *pcs;
- struct function_desc *function;
+ const struct function_desc *function;
struct pcs_function *func;
int i;
diff --git a/drivers/pinctrl/pinmux.c b/drivers/pinctrl/pinmux.c
index 79814758a084570adea0ea1a3151d186f65d1d1f..62bd4aa53b2b22cb09eacfb05398205f2fe391b9 100644
--- a/drivers/pinctrl/pinmux.c
+++ b/drivers/pinctrl/pinmux.c
@@ -847,8 +847,8 @@ EXPORT_SYMBOL_GPL(pinmux_generic_get_function_groups);
* @pctldev: pin controller device
* @selector: function number
*/
-struct function_desc *pinmux_generic_get_function(struct pinctrl_dev *pctldev,
- unsigned int selector)
+const struct function_desc *
+pinmux_generic_get_function(struct pinctrl_dev *pctldev, unsigned int selector)
{
struct function_desc *function;
diff --git a/drivers/pinctrl/pinmux.h b/drivers/pinctrl/pinmux.h
index bdb5be1a636ead9695410824b5557937c5baa89a..549ab10f7afbda32fadf4ad151401180bed2064f 100644
--- a/drivers/pinctrl/pinmux.h
+++ b/drivers/pinctrl/pinmux.h
@@ -152,8 +152,8 @@ int pinmux_generic_get_function_groups(struct pinctrl_dev *pctldev,
const char * const **groups,
unsigned int * const ngroups);
-struct function_desc *pinmux_generic_get_function(struct pinctrl_dev *pctldev,
- unsigned int selector);
+const struct function_desc *
+pinmux_generic_get_function(struct pinctrl_dev *pctldev, unsigned int selector);
int pinmux_generic_add_function(struct pinctrl_dev *pctldev,
const char *name,
diff --git a/drivers/pinctrl/renesas/pinctrl-rza1.c b/drivers/pinctrl/renesas/pinctrl-rza1.c
index 3d8492c917104afbf15c8f697ba4afabafa3a5cf..26826c8b5441b1a056900fdfc1d68c0c5cd3e6ba 100644
--- a/drivers/pinctrl/renesas/pinctrl-rza1.c
+++ b/drivers/pinctrl/renesas/pinctrl-rza1.c
@@ -1120,7 +1120,7 @@ static int rza1_set_mux(struct pinctrl_dev *pctldev, unsigned int selector,
{
struct rza1_pinctrl *rza1_pctl = pinctrl_dev_get_drvdata(pctldev);
struct rza1_mux_conf *mux_confs;
- struct function_desc *func;
+ const struct function_desc *func;
struct group_desc *grp;
int i;
diff --git a/drivers/pinctrl/renesas/pinctrl-rza2.c b/drivers/pinctrl/renesas/pinctrl-rza2.c
index 7a0b268d3eb91a42911f372e66805291344f8750..7e9eff522204413c83779932cd702edc02ec2686 100644
--- a/drivers/pinctrl/renesas/pinctrl-rza2.c
+++ b/drivers/pinctrl/renesas/pinctrl-rza2.c
@@ -442,7 +442,7 @@ static int rza2_set_mux(struct pinctrl_dev *pctldev, unsigned int selector,
unsigned int group)
{
struct rza2_pinctrl_priv *priv = pinctrl_dev_get_drvdata(pctldev);
- struct function_desc *func;
+ const struct function_desc *func;
unsigned int i, *psel_val;
struct group_desc *grp;
diff --git a/drivers/pinctrl/renesas/pinctrl-rzg2l.c b/drivers/pinctrl/renesas/pinctrl-rzg2l.c
index 2a10ae0bf5bdd97c10ff4fe4b890a70744a97578..76d4ce78d0dece3bb95779d60f235ce85df25403 100644
--- a/drivers/pinctrl/renesas/pinctrl-rzg2l.c
+++ b/drivers/pinctrl/renesas/pinctrl-rzg2l.c
@@ -549,7 +549,7 @@ static int rzg2l_pinctrl_set_mux(struct pinctrl_dev *pctldev,
{
struct rzg2l_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev);
const struct rzg2l_hwcfg *hwcfg = pctrl->data->hwcfg;
- struct function_desc *func;
+ const struct function_desc *func;
unsigned int i, *psel_val;
struct group_desc *group;
const unsigned int *pins;
diff --git a/drivers/pinctrl/renesas/pinctrl-rzv2m.c b/drivers/pinctrl/renesas/pinctrl-rzv2m.c
index a17b68b4c466e2ca91cb26a713a088e309d5e167..a60cdf8f3eef6e3f14e3fe19e7d57515d6b455fa 100644
--- a/drivers/pinctrl/renesas/pinctrl-rzv2m.c
+++ b/drivers/pinctrl/renesas/pinctrl-rzv2m.c
@@ -162,7 +162,7 @@ static int rzv2m_pinctrl_set_mux(struct pinctrl_dev *pctldev,
unsigned int group_selector)
{
struct rzv2m_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev);
- struct function_desc *func;
+ const struct function_desc *func;
unsigned int i, *psel_val;
struct group_desc *group;
const unsigned int *pins;
--
2.48.1
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