Message ID | 20230605125411.60378-1-andriy.shevchenko@linux.intel.com (mailing list archive) |
---|---|
State | Handled Elsewhere |
Headers | show |
Series | [v2,1/1] gpiolib: Remove unused gpio_cansleep() | expand |
在 2023/6/5 20:54, Andy Shevchenko 写道: > There is not a single user in the entire kernel of this deprecated API, > kill it for good. > > Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Yanteng Si <siyanteng@loongson.cn> Thanks, Yanteng > --- > v2: amended Chinese translation (thanks to Yanteng Si) > Documentation/driver-api/gpio/legacy.rst | 12 +----------- > .../translations/zh_CN/driver-api/gpio/legacy.rst | 14 +++----------- > Documentation/translations/zh_TW/gpio.txt | 14 +++----------- > arch/m68k/include/asm/mcfgpio.h | 8 -------- > arch/mips/include/asm/mach-au1x00/gpio-au1000.h | 5 ----- > arch/mips/include/asm/mach-au1x00/gpio-au1300.h | 5 ----- > include/linux/gpio.h | 12 ------------ > 7 files changed, 7 insertions(+), 63 deletions(-) > > diff --git a/Documentation/driver-api/gpio/legacy.rst b/Documentation/driver-api/gpio/legacy.rst > index 9eda54811faa..b6505914791c 100644 > --- a/Documentation/driver-api/gpio/legacy.rst > +++ b/Documentation/driver-api/gpio/legacy.rst > @@ -165,8 +165,7 @@ Most GPIO controllers can be accessed with memory read/write instructions. > Those don't need to sleep, and can safely be done from inside hard > (nonthreaded) IRQ handlers and similar contexts. > > -Use the following calls to access such GPIOs, > -for which gpio_cansleep() will always return false (see below):: > +Use the following calls to access such GPIOs:: > > /* GPIO INPUT: return zero or nonzero */ > int gpio_get_value(unsigned gpio); > @@ -200,13 +199,6 @@ Some GPIO controllers must be accessed using message based busses like I2C > or SPI. Commands to read or write those GPIO values require waiting to > get to the head of a queue to transmit a command and get its response. > This requires sleeping, which can't be done from inside IRQ handlers. > - > -Platforms that support this type of GPIO distinguish them from other GPIOs > -by returning nonzero from this call (which requires a valid GPIO number, > -which should have been previously allocated with gpio_request):: > - > - int gpio_cansleep(unsigned gpio); > - > To access such GPIOs, a different set of accessors is defined:: > > /* GPIO INPUT: return zero or nonzero, might sleep */ > @@ -215,7 +207,6 @@ To access such GPIOs, a different set of accessors is defined:: > /* GPIO OUTPUT, might sleep */ > void gpio_set_value_cansleep(unsigned gpio, int value); > > - > Accessing such GPIOs requires a context which may sleep, for example > a threaded IRQ handler, and those accessors must be used instead of > spinlock-safe accessors without the cansleep() name suffix. > @@ -537,7 +528,6 @@ code, which always dispatches through the gpio_chip:: > > #define gpio_get_value __gpio_get_value > #define gpio_set_value __gpio_set_value > - #define gpio_cansleep __gpio_cansleep > > Fancier implementations could instead define those as inline functions with > logic optimizing access to specific SOC-based GPIOs. For example, if the > diff --git a/Documentation/translations/zh_CN/driver-api/gpio/legacy.rst b/Documentation/translations/zh_CN/driver-api/gpio/legacy.rst > index 1bddecf73670..aeccff777170 100644 > --- a/Documentation/translations/zh_CN/driver-api/gpio/legacy.rst > +++ b/Documentation/translations/zh_CN/driver-api/gpio/legacy.rst > @@ -153,8 +153,7 @@ get/set(获取/设置)函数调用没法返回错误,且有可能是配置错误 > 大多数 GPIO 控制器可以通过内存读/写指令来访问。这些指令不会休眠,可以 > 安全地在硬(非线程)中断例程和类似的上下文中完成。 > > -对于那些用 gpio_cansleep()测试总是返回失败的 GPIO(见下文),使用 > -以下的函数访问:: > +对于那些 GPIO,使用以下的函数访问:: > > /* GPIO 输入:返回零或非零 */ > int gpio_get_value(unsigned gpio); > @@ -186,11 +185,6 @@ GPIO值是布尔值,零表示低电平,非零表示高电平。当读取一 > GPIO 值的命令需要等待其信息排到队首才发送命令,再获得其反馈。期间需要 > 休眠,这不能在 IRQ 例程(中断上下文)中执行。 > > -支持此类 GPIO 的平台通过以下函数返回非零值来区分出这种 GPIO。(此函数需要 > -一个之前通过 gpio_request 分配到的有效 GPIO 编号):: > - > - int gpio_cansleep(unsigned gpio); > - > 为了访问这种 GPIO,内核定义了一套不同的函数:: > > /* GPIO 输入:返回零或非零 ,可能会休眠 */ > @@ -199,7 +193,6 @@ GPIO 值的命令需要等待其信息排到队首才发送命令,再获得其 > /* GPIO 输出,可能会休眠 */ > void gpio_set_value_cansleep(unsigned gpio, int value); > > - > 访问这样的 GPIO 需要一个允许休眠的上下文,例如线程 IRQ 处理例程,并用以上的 > 访问函数替换那些没有 cansleep()后缀的自旋锁安全访问函数。 > > @@ -483,8 +476,8 @@ GPIO 实现者的框架(可选) > > 为了支持这个框架,一个平台的 Kconfig 文件将会 "select"(选择) > ARCH_REQUIRE_GPIOLIB 或 ARCH_WANT_OPTIONAL_GPIOLIB,并让它的 > -<asm/gpio.h> 包含 <asm-generic/gpio.h>,同时定义三个方法: > -gpio_get_value()、gpio_set_value()和 gpio_cansleep()。 > +<asm/gpio.h> 包含 <asm-generic/gpio.h>,同时定义两个方法: > +gpio_get_value()、gpio_set_value()。 > > 它也应提供一个 ARCH_NR_GPIOS 的定义值,这样可以更好地反映该平台 GPIO > 的实际数量,节省静态表的空间。(这个定义值应该包含片上系统内建 GPIO 和 > @@ -502,7 +495,6 @@ ARCH_WANT_OPTIONAL_GPIOLIB 意味着 gpiolib 核心默认关闭,且用户可以 > > #define gpio_get_value __gpio_get_value > #define gpio_set_value __gpio_set_value > - #define gpio_cansleep __gpio_cansleep > > 这些定义可以用更理想的实现方法替代,那就是使用经过逻辑优化的内联函数来访问 > 基于特定片上系统的 GPIO。例如,若引用的 GPIO (寄存器位偏移)是常量“12”, > diff --git a/Documentation/translations/zh_TW/gpio.txt b/Documentation/translations/zh_TW/gpio.txt > index 66bc7f2bbe53..b93788a2628b 100644 > --- a/Documentation/translations/zh_TW/gpio.txt > +++ b/Documentation/translations/zh_TW/gpio.txt > @@ -161,8 +161,7 @@ get/set(獲取/設置)函數調用沒法返回錯誤,且有可能是配置錯誤 > 大多數 GPIO 控制器可以通過內存讀/寫指令來訪問。這些指令不會休眠,可以 > 安全地在硬(非線程)中斷例程和類似的上下文中完成。 > > -對於那些用 gpio_cansleep()測試總是返回失敗的 GPIO(見下文),使用 > -以下的函數訪問: > +對於那些 GPIO,使用以下的函數訪問: > > /* GPIO 輸入:返回零或非零 */ > int gpio_get_value(unsigned gpio); > @@ -193,11 +192,6 @@ GPIO值是布爾值,零表示低電平,非零表示高電平。當讀取一 > GPIO 值的命令需要等待其信息排到隊首才發送命令,再獲得其反饋。期間需要 > 休眠,這不能在 IRQ 例程(中斷上下文)中執行。 > > -支持此類 GPIO 的平台通過以下函數返回非零值來區分出這種 GPIO。(此函數需要 > -一個之前通過 gpio_request 分配到的有效 GPIO 編號): > - > - int gpio_cansleep(unsigned gpio); > - > 爲了訪問這種 GPIO,內核定義了一套不同的函數: > > /* GPIO 輸入:返回零或非零 ,可能會休眠 */ > @@ -206,7 +200,6 @@ GPIO 值的命令需要等待其信息排到隊首才發送命令,再獲得其 > /* GPIO 輸出,可能會休眠 */ > void gpio_set_value_cansleep(unsigned gpio, int value); > > - > 訪問這樣的 GPIO 需要一個允許休眠的上下文,例如線程 IRQ 處理例程,並用以上的 > 訪問函數替換那些沒有 cansleep()後綴的自旋鎖安全訪問函數。 > > @@ -449,8 +442,8 @@ GPIO 實現者的框架 (可選) > ------- > 爲了支持這個框架,一個平台的 Kconfig 文件將會 "select"(選擇) > ARCH_REQUIRE_GPIOLIB 或 ARCH_WANT_OPTIONAL_GPIOLIB,並讓它的 > -<asm/gpio.h> 包含 <asm-generic/gpio.h>,同時定義三個方法: > -gpio_get_value()、gpio_set_value()和 gpio_cansleep()。 > +<asm/gpio.h> 包含 <asm-generic/gpio.h>,同時定義二個方法: > +gpio_get_value()、gpio_set_value()。 > > 它也應提供一個 ARCH_NR_GPIOS 的定義值,這樣可以更好地反映該平台 GPIO > 的實際數量,節省靜態表的空間。(這個定義值應該包含片上系統內建 GPIO 和 > @@ -468,7 +461,6 @@ ARCH_WANT_OPTIONAL_GPIOLIB 意味著 gpiolib 核心默認關閉,且用戶可以 > > #define gpio_get_value __gpio_get_value > #define gpio_set_value __gpio_set_value > - #define gpio_cansleep __gpio_cansleep > > 這些定義可以用更理想的實現方法替代,那就是使用經過邏輯優化的內聯函數來訪問 > 基於特定片上系統的 GPIO。例如,若引用的 GPIO (寄存器位偏移)是常量「12」, > diff --git a/arch/m68k/include/asm/mcfgpio.h b/arch/m68k/include/asm/mcfgpio.h > index 2cefe8445980..7abd322c019f 100644 > --- a/arch/m68k/include/asm/mcfgpio.h > +++ b/arch/m68k/include/asm/mcfgpio.h > @@ -34,14 +34,6 @@ static inline void __gpio_set_value(unsigned gpio, int value) > __mcfgpio_set_value(gpio, value); > } > > -static inline int __gpio_cansleep(unsigned gpio) > -{ > - if (gpio < MCFGPIO_PIN_MAX) > - return 0; > - else > - return -EINVAL; > -} > - > static inline int __gpio_to_irq(unsigned gpio) > { > return -EINVAL; > diff --git a/arch/mips/include/asm/mach-au1x00/gpio-au1000.h b/arch/mips/include/asm/mach-au1x00/gpio-au1000.h > index adde1fa5097e..82bc2766e2ec 100644 > --- a/arch/mips/include/asm/mach-au1x00/gpio-au1000.h > +++ b/arch/mips/include/asm/mach-au1x00/gpio-au1000.h > @@ -500,11 +500,6 @@ static inline int alchemy_gpio_is_valid(int gpio) > alchemy_gpio1_is_valid(gpio); > } > > -static inline int alchemy_gpio_cansleep(int gpio) > -{ > - return 0; /* Alchemy never gets tired */ > -} > - > static inline int alchemy_gpio_to_irq(int gpio) > { > return (gpio >= ALCHEMY_GPIO2_BASE) ? > diff --git a/arch/mips/include/asm/mach-au1x00/gpio-au1300.h b/arch/mips/include/asm/mach-au1x00/gpio-au1300.h > index d16add7ba49d..43d44f384f97 100644 > --- a/arch/mips/include/asm/mach-au1x00/gpio-au1300.h > +++ b/arch/mips/include/asm/mach-au1x00/gpio-au1300.h > @@ -98,11 +98,6 @@ static inline int au1300_gpio_is_valid(unsigned int gpio) > return ret; > } > > -static inline int au1300_gpio_cansleep(unsigned int gpio) > -{ > - return 0; > -} > - > /* hardware remembers gpio 0-63 levels on powerup */ > static inline int au1300_gpio_getinitlvl(unsigned int gpio) > { > diff --git a/include/linux/gpio.h b/include/linux/gpio.h > index 88efac969754..7ecc25c543ce 100644 > --- a/include/linux/gpio.h > +++ b/include/linux/gpio.h > @@ -108,11 +108,6 @@ static inline void gpio_set_value(unsigned gpio, int value) > return gpiod_set_raw_value(gpio_to_desc(gpio), value); > } > > -static inline int gpio_cansleep(unsigned gpio) > -{ > - return gpiod_cansleep(gpio_to_desc(gpio)); > -} > - > static inline int gpio_to_irq(unsigned gpio) > { > return gpiod_to_irq(gpio_to_desc(gpio)); > @@ -195,13 +190,6 @@ static inline void gpio_set_value(unsigned gpio, int value) > WARN_ON(1); > } > > -static inline int gpio_cansleep(unsigned gpio) > -{ > - /* GPIO can never have been requested or set as {in,out}put */ > - WARN_ON(1); > - return 0; > -} > - > static inline int gpio_get_value_cansleep(unsigned gpio) > { > /* GPIO can never have been requested or set as {in,out}put */
On Mon, Jun 5, 2023 at 2:54 PM Andy Shevchenko <andriy.shevchenko@linux.intel.com> wrote: > There is not a single user in the entire kernel of this deprecated API, > kill it for good. > > Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Thanks for working on this! Yours, Linus Walleij
On Mon, Jun 5, 2023 at 2:54 PM Andy Shevchenko <andriy.shevchenko@linux.intel.com> wrote: > > There is not a single user in the entire kernel of this deprecated API, > kill it for good. > > Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> > --- Applied, thanks! Bart
diff --git a/Documentation/driver-api/gpio/legacy.rst b/Documentation/driver-api/gpio/legacy.rst index 9eda54811faa..b6505914791c 100644 --- a/Documentation/driver-api/gpio/legacy.rst +++ b/Documentation/driver-api/gpio/legacy.rst @@ -165,8 +165,7 @@ Most GPIO controllers can be accessed with memory read/write instructions. Those don't need to sleep, and can safely be done from inside hard (nonthreaded) IRQ handlers and similar contexts. -Use the following calls to access such GPIOs, -for which gpio_cansleep() will always return false (see below):: +Use the following calls to access such GPIOs:: /* GPIO INPUT: return zero or nonzero */ int gpio_get_value(unsigned gpio); @@ -200,13 +199,6 @@ Some GPIO controllers must be accessed using message based busses like I2C or SPI. Commands to read or write those GPIO values require waiting to get to the head of a queue to transmit a command and get its response. This requires sleeping, which can't be done from inside IRQ handlers. - -Platforms that support this type of GPIO distinguish them from other GPIOs -by returning nonzero from this call (which requires a valid GPIO number, -which should have been previously allocated with gpio_request):: - - int gpio_cansleep(unsigned gpio); - To access such GPIOs, a different set of accessors is defined:: /* GPIO INPUT: return zero or nonzero, might sleep */ @@ -215,7 +207,6 @@ To access such GPIOs, a different set of accessors is defined:: /* GPIO OUTPUT, might sleep */ void gpio_set_value_cansleep(unsigned gpio, int value); - Accessing such GPIOs requires a context which may sleep, for example a threaded IRQ handler, and those accessors must be used instead of spinlock-safe accessors without the cansleep() name suffix. @@ -537,7 +528,6 @@ code, which always dispatches through the gpio_chip:: #define gpio_get_value __gpio_get_value #define gpio_set_value __gpio_set_value - #define gpio_cansleep __gpio_cansleep Fancier implementations could instead define those as inline functions with logic optimizing access to specific SOC-based GPIOs. For example, if the diff --git a/Documentation/translations/zh_CN/driver-api/gpio/legacy.rst b/Documentation/translations/zh_CN/driver-api/gpio/legacy.rst index 1bddecf73670..aeccff777170 100644 --- a/Documentation/translations/zh_CN/driver-api/gpio/legacy.rst +++ b/Documentation/translations/zh_CN/driver-api/gpio/legacy.rst @@ -153,8 +153,7 @@ get/set(获取/设置)函数调用没法返回错误,且有可能是配置错误 大多数 GPIO 控制器可以通过内存读/写指令来访问。这些指令不会休眠,可以 安全地在硬(非线程)中断例程和类似的上下文中完成。 -对于那些用 gpio_cansleep()测试总是返回失败的 GPIO(见下文),使用 -以下的函数访问:: +对于那些 GPIO,使用以下的函数访问:: /* GPIO 输入:返回零或非零 */ int gpio_get_value(unsigned gpio); @@ -186,11 +185,6 @@ GPIO值是布尔值,零表示低电平,非零表示高电平。当读取一 GPIO 值的命令需要等待其信息排到队首才发送命令,再获得其反馈。期间需要 休眠,这不能在 IRQ 例程(中断上下文)中执行。 -支持此类 GPIO 的平台通过以下函数返回非零值来区分出这种 GPIO。(此函数需要 -一个之前通过 gpio_request 分配到的有效 GPIO 编号):: - - int gpio_cansleep(unsigned gpio); - 为了访问这种 GPIO,内核定义了一套不同的函数:: /* GPIO 输入:返回零或非零 ,可能会休眠 */ @@ -199,7 +193,6 @@ GPIO 值的命令需要等待其信息排到队首才发送命令,再获得其 /* GPIO 输出,可能会休眠 */ void gpio_set_value_cansleep(unsigned gpio, int value); - 访问这样的 GPIO 需要一个允许休眠的上下文,例如线程 IRQ 处理例程,并用以上的 访问函数替换那些没有 cansleep()后缀的自旋锁安全访问函数。 @@ -483,8 +476,8 @@ GPIO 实现者的框架(可选) 为了支持这个框架,一个平台的 Kconfig 文件将会 "select"(选择) ARCH_REQUIRE_GPIOLIB 或 ARCH_WANT_OPTIONAL_GPIOLIB,并让它的 -<asm/gpio.h> 包含 <asm-generic/gpio.h>,同时定义三个方法: -gpio_get_value()、gpio_set_value()和 gpio_cansleep()。 +<asm/gpio.h> 包含 <asm-generic/gpio.h>,同时定义两个方法: +gpio_get_value()、gpio_set_value()。 它也应提供一个 ARCH_NR_GPIOS 的定义值,这样可以更好地反映该平台 GPIO 的实际数量,节省静态表的空间。(这个定义值应该包含片上系统内建 GPIO 和 @@ -502,7 +495,6 @@ ARCH_WANT_OPTIONAL_GPIOLIB 意味着 gpiolib 核心默认关闭,且用户可以 #define gpio_get_value __gpio_get_value #define gpio_set_value __gpio_set_value - #define gpio_cansleep __gpio_cansleep 这些定义可以用更理想的实现方法替代,那就是使用经过逻辑优化的内联函数来访问 基于特定片上系统的 GPIO。例如,若引用的 GPIO (寄存器位偏移)是常量“12”, diff --git a/Documentation/translations/zh_TW/gpio.txt b/Documentation/translations/zh_TW/gpio.txt index 66bc7f2bbe53..b93788a2628b 100644 --- a/Documentation/translations/zh_TW/gpio.txt +++ b/Documentation/translations/zh_TW/gpio.txt @@ -161,8 +161,7 @@ get/set(獲取/設置)函數調用沒法返回錯誤,且有可能是配置錯誤 大多數 GPIO 控制器可以通過內存讀/寫指令來訪問。這些指令不會休眠,可以 安全地在硬(非線程)中斷例程和類似的上下文中完成。 -對於那些用 gpio_cansleep()測試總是返回失敗的 GPIO(見下文),使用 -以下的函數訪問: +對於那些 GPIO,使用以下的函數訪問: /* GPIO 輸入:返回零或非零 */ int gpio_get_value(unsigned gpio); @@ -193,11 +192,6 @@ GPIO值是布爾值,零表示低電平,非零表示高電平。當讀取一 GPIO 值的命令需要等待其信息排到隊首才發送命令,再獲得其反饋。期間需要 休眠,這不能在 IRQ 例程(中斷上下文)中執行。 -支持此類 GPIO 的平台通過以下函數返回非零值來區分出這種 GPIO。(此函數需要 -一個之前通過 gpio_request 分配到的有效 GPIO 編號): - - int gpio_cansleep(unsigned gpio); - 爲了訪問這種 GPIO,內核定義了一套不同的函數: /* GPIO 輸入:返回零或非零 ,可能會休眠 */ @@ -206,7 +200,6 @@ GPIO 值的命令需要等待其信息排到隊首才發送命令,再獲得其 /* GPIO 輸出,可能會休眠 */ void gpio_set_value_cansleep(unsigned gpio, int value); - 訪問這樣的 GPIO 需要一個允許休眠的上下文,例如線程 IRQ 處理例程,並用以上的 訪問函數替換那些沒有 cansleep()後綴的自旋鎖安全訪問函數。 @@ -449,8 +442,8 @@ GPIO 實現者的框架 (可選) ------- 爲了支持這個框架,一個平台的 Kconfig 文件將會 "select"(選擇) ARCH_REQUIRE_GPIOLIB 或 ARCH_WANT_OPTIONAL_GPIOLIB,並讓它的 -<asm/gpio.h> 包含 <asm-generic/gpio.h>,同時定義三個方法: -gpio_get_value()、gpio_set_value()和 gpio_cansleep()。 +<asm/gpio.h> 包含 <asm-generic/gpio.h>,同時定義二個方法: +gpio_get_value()、gpio_set_value()。 它也應提供一個 ARCH_NR_GPIOS 的定義值,這樣可以更好地反映該平台 GPIO 的實際數量,節省靜態表的空間。(這個定義值應該包含片上系統內建 GPIO 和 @@ -468,7 +461,6 @@ ARCH_WANT_OPTIONAL_GPIOLIB 意味著 gpiolib 核心默認關閉,且用戶可以 #define gpio_get_value __gpio_get_value #define gpio_set_value __gpio_set_value - #define gpio_cansleep __gpio_cansleep 這些定義可以用更理想的實現方法替代,那就是使用經過邏輯優化的內聯函數來訪問 基於特定片上系統的 GPIO。例如,若引用的 GPIO (寄存器位偏移)是常量「12」, diff --git a/arch/m68k/include/asm/mcfgpio.h b/arch/m68k/include/asm/mcfgpio.h index 2cefe8445980..7abd322c019f 100644 --- a/arch/m68k/include/asm/mcfgpio.h +++ b/arch/m68k/include/asm/mcfgpio.h @@ -34,14 +34,6 @@ static inline void __gpio_set_value(unsigned gpio, int value) __mcfgpio_set_value(gpio, value); } -static inline int __gpio_cansleep(unsigned gpio) -{ - if (gpio < MCFGPIO_PIN_MAX) - return 0; - else - return -EINVAL; -} - static inline int __gpio_to_irq(unsigned gpio) { return -EINVAL; diff --git a/arch/mips/include/asm/mach-au1x00/gpio-au1000.h b/arch/mips/include/asm/mach-au1x00/gpio-au1000.h index adde1fa5097e..82bc2766e2ec 100644 --- a/arch/mips/include/asm/mach-au1x00/gpio-au1000.h +++ b/arch/mips/include/asm/mach-au1x00/gpio-au1000.h @@ -500,11 +500,6 @@ static inline int alchemy_gpio_is_valid(int gpio) alchemy_gpio1_is_valid(gpio); } -static inline int alchemy_gpio_cansleep(int gpio) -{ - return 0; /* Alchemy never gets tired */ -} - static inline int alchemy_gpio_to_irq(int gpio) { return (gpio >= ALCHEMY_GPIO2_BASE) ? diff --git a/arch/mips/include/asm/mach-au1x00/gpio-au1300.h b/arch/mips/include/asm/mach-au1x00/gpio-au1300.h index d16add7ba49d..43d44f384f97 100644 --- a/arch/mips/include/asm/mach-au1x00/gpio-au1300.h +++ b/arch/mips/include/asm/mach-au1x00/gpio-au1300.h @@ -98,11 +98,6 @@ static inline int au1300_gpio_is_valid(unsigned int gpio) return ret; } -static inline int au1300_gpio_cansleep(unsigned int gpio) -{ - return 0; -} - /* hardware remembers gpio 0-63 levels on powerup */ static inline int au1300_gpio_getinitlvl(unsigned int gpio) { diff --git a/include/linux/gpio.h b/include/linux/gpio.h index 88efac969754..7ecc25c543ce 100644 --- a/include/linux/gpio.h +++ b/include/linux/gpio.h @@ -108,11 +108,6 @@ static inline void gpio_set_value(unsigned gpio, int value) return gpiod_set_raw_value(gpio_to_desc(gpio), value); } -static inline int gpio_cansleep(unsigned gpio) -{ - return gpiod_cansleep(gpio_to_desc(gpio)); -} - static inline int gpio_to_irq(unsigned gpio) { return gpiod_to_irq(gpio_to_desc(gpio)); @@ -195,13 +190,6 @@ static inline void gpio_set_value(unsigned gpio, int value) WARN_ON(1); } -static inline int gpio_cansleep(unsigned gpio) -{ - /* GPIO can never have been requested or set as {in,out}put */ - WARN_ON(1); - return 0; -} - static inline int gpio_get_value_cansleep(unsigned gpio) { /* GPIO can never have been requested or set as {in,out}put */
There is not a single user in the entire kernel of this deprecated API, kill it for good. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> --- v2: amended Chinese translation (thanks to Yanteng Si) Documentation/driver-api/gpio/legacy.rst | 12 +----------- .../translations/zh_CN/driver-api/gpio/legacy.rst | 14 +++----------- Documentation/translations/zh_TW/gpio.txt | 14 +++----------- arch/m68k/include/asm/mcfgpio.h | 8 -------- arch/mips/include/asm/mach-au1x00/gpio-au1000.h | 5 ----- arch/mips/include/asm/mach-au1x00/gpio-au1300.h | 5 ----- include/linux/gpio.h | 12 ------------ 7 files changed, 7 insertions(+), 63 deletions(-)