From 9df8c63c2b814be8c40d44d21dabaf074058c98b Mon Sep 17 00:00:00 2001 From: Andy Shevchenko Date: Tue, 30 May 2023 01:14:46 +0300 Subject: gpiolib: Kill unused GPIOF_OPEN_* There is no use of the GPIOF_OPEN_* in the kernel. Kill it for good. Signed-off-by: Andy Shevchenko Reviewed-by: Linus Walleij Signed-off-by: Bartosz Golaszewski --- Documentation/driver-api/gpio/legacy.rst | 16 ---------------- .../translations/zh_CN/driver-api/gpio/legacy.rst | 14 -------------- Documentation/translations/zh_TW/gpio.txt | 14 -------------- 3 files changed, 44 deletions(-) (limited to 'Documentation') diff --git a/Documentation/driver-api/gpio/legacy.rst b/Documentation/driver-api/gpio/legacy.rst index c5f98a78499f..9eda54811faa 100644 --- a/Documentation/driver-api/gpio/legacy.rst +++ b/Documentation/driver-api/gpio/legacy.rst @@ -319,8 +319,6 @@ where 'flags' is currently defined to specify the following properties: * GPIOF_INIT_LOW - as output, set initial level to LOW * GPIOF_INIT_HIGH - as output, set initial level to HIGH - * GPIOF_OPEN_DRAIN - gpio pin is open drain type. - * GPIOF_OPEN_SOURCE - gpio pin is open source type. since GPIOF_INIT_* are only valid when configured as output, so group valid combinations as: @@ -329,20 +327,6 @@ combinations as: * GPIOF_OUT_INIT_LOW - configured as output, initial level LOW * GPIOF_OUT_INIT_HIGH - configured as output, initial level HIGH -When setting the flag as GPIOF_OPEN_DRAIN then it will assume that pins is -open drain type. Such pins will not be driven to 1 in output mode. It is -require to connect pull-up on such pins. By enabling this flag, gpio lib will -make the direction to input when it is asked to set value of 1 in output mode -to make the pin HIGH. The pin is make to LOW by driving value 0 in output mode. - -When setting the flag as GPIOF_OPEN_SOURCE then it will assume that pins is -open source type. Such pins will not be driven to 0 in output mode. It is -require to connect pull-down on such pin. By enabling this flag, gpio lib will -make the direction to input when it is asked to set value of 0 in output mode -to make the pin LOW. The pin is make to HIGH by driving value 1 in output mode. - -In the future, these flags can be extended to support more properties. - Further more, to ease the claim/release of multiple GPIOs, 'struct gpio' is introduced to encapsulate all three fields as:: diff --git a/Documentation/translations/zh_CN/driver-api/gpio/legacy.rst b/Documentation/translations/zh_CN/driver-api/gpio/legacy.rst index 8720970393fb..1bddecf73670 100644 --- a/Documentation/translations/zh_CN/driver-api/gpio/legacy.rst +++ b/Documentation/translations/zh_CN/driver-api/gpio/legacy.rst @@ -294,8 +294,6 @@ gpio_request()前将这类细节配置好，例如使用引脚控制子系统的 * GPIOF_INIT_LOW - 在作为输出时,初始值为低电平 * GPIOF_INIT_HIGH - 在作为输出时,初始值为高电平 - * GPIOF_OPEN_DRAIN - gpio引脚为开漏信号 - * GPIOF_OPEN_SOURCE - gpio引脚为源极开路信号 因为 GPIOF_INIT_* 仅有在配置为输出的时候才存在,所以有效的组合为: @@ -303,18 +301,6 @@ gpio_request()前将这类细节配置好，例如使用引脚控制子系统的 * GPIOF_OUT_INIT_LOW - 配置为输出,并初始化为低电平 * GPIOF_OUT_INIT_HIGH - 配置为输出,并初始化为高电平 -当设置 flag 为 GPIOF_OPEN_DRAIN 时，则假设引脚是开漏信号。这样的引脚 -将不会在输出模式下置1。这样的引脚需要连接上拉电阻。通过使能这个标志，gpio库 -将会在被要求输出模式下置1时将引脚变为输入状态来使引脚置高。引脚在输出模式下 -通过置0使其输出低电平。 - -当设置 flag 为 GPIOF_OPEN_SOURCE 时，则假设引脚为源极开路信号。这样的引脚 -将不会在输出模式下置0。这样的引脚需要连接下拉电阻。通过使能这个标志，gpio库 -将会在被要求输出模式下置0时将引脚变为输入状态来使引脚置低。引脚在输出模式下 -通过置1使其输出高电平。 - -将来这些标志可能扩展到支持更多的属性。 - 更进一步,为了更简单地声明/释放多个 GPIO,'struct gpio'被引进来封装所有 这三个领域:: diff --git a/Documentation/translations/zh_TW/gpio.txt b/Documentation/translations/zh_TW/gpio.txt index e0b96d897fa7..66bc7f2bbe53 100644 --- a/Documentation/translations/zh_TW/gpio.txt +++ b/Documentation/translations/zh_TW/gpio.txt @@ -300,8 +300,6 @@ gpio_request()前將這類細節配置好，例如使用 pinctrl 子系統的映 * GPIOF_INIT_LOW - 在作爲輸出時,初始值爲低電平 * GPIOF_INIT_HIGH - 在作爲輸出時,初始值爲高電平 - * GPIOF_OPEN_DRAIN - gpio引腳爲開漏信號 - * GPIOF_OPEN_SOURCE - gpio引腳爲源極開路信號 因爲 GPIOF_INIT_* 僅有在配置爲輸出的時候才存在,所以有效的組合爲: @@ -309,18 +307,6 @@ gpio_request()前將這類細節配置好，例如使用 pinctrl 子系統的映 * GPIOF_OUT_INIT_LOW - 配置爲輸出,並初始化爲低電平 * GPIOF_OUT_INIT_HIGH - 配置爲輸出,並初始化爲高電平 -當設置 flag 爲 GPIOF_OPEN_DRAIN 時，則假設引腳是開漏信號。這樣的引腳 -將不會在輸出模式下置1。這樣的引腳需要連接上拉電阻。通過使能這個標誌，gpio庫 -將會在被要求輸出模式下置1時將引腳變爲輸入狀態來使引腳置高。引腳在輸出模式下 -通過置0使其輸出低電平。 - -當設置 flag 爲 GPIOF_OPEN_SOURCE 時，則假設引腳爲源極開路信號。這樣的引腳 -將不會在輸出模式下置0。這樣的引腳需要連接下拉電阻。通過使能這個標誌，gpio庫 -將會在被要求輸出模式下置0時將引腳變爲輸入狀態來使引腳置低。引腳在輸出模式下 -通過置1使其輸出高電平。 - -將來這些標誌可能擴展到支持更多的屬性。 - 更進一步,爲了更簡單地聲明/釋放多個 GPIO,'struct gpio'被引進來封裝所有 這三個領域: -- cgit