Merge tag 'gpio-v4.21-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio

Pull GPIO updates from Linus Walleij:
 "This is the bulk of GPIO changes for the v4.21 kernel series.

  Core changes:

   - Some core changes are already in outside of this pull request as
     they came through the regulator tree, most notably
     devm_gpiod_unhinge() that removes devres refcount management from a
     GPIO descriptor. This is needed in subsystems such as regulators
     where the regulator core need to take over the reference counting
     and lifecycle management for a GPIO descriptor.

   - We dropped devm_gpiochip_remove() and devm_gpio_chip_match() as
     nothing needs it. We can bring it back if need be.

   - Add a global TODO so people see where we are going. This helps
     setting the direction now that we are two GPIO maintainers.

   - Handle the MMC CD/WP properties in the device tree core. (The bulk
     of patches activating this code is already merged through the
     MMC/SD tree.)

   - Augment gpiochip_request_own_desc() to pass a flag so we as
     gpiochips can request lines as active low or open drain etc even
     from ourselves.

  New drivers:

   - New driver for Cadence GPIO blocks.

   - New driver for Atmel SAMA5D2 PIOBU GPIO lines.

  Driver improvements:

   - A major refactoring of the PCA953x driver - this driver has been
     around for ages, and is now modernized to reduce code duplication
     that has stacked up and is using regmap to read write and cache
     registers.

   - Intel drivers are now maintained in a separate tree and start with
     a round of cleanups and unifications"

* tag 'gpio-v4.21-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (99 commits)
  gpio: sama5d2-piobu: Depend on OF_GPIO
  gpio: Add Cadence GPIO driver
  dt-bindings: gpio: Add bindings for Cadence GPIO
  gpiolib-acpi: remove unused variable 'err', cleans up build warning
  gpio: mxs: read pin level directly instead of using .get
  gpio: aspeed: remove duplicated statement
  gpio: add driver for SAMA5D2 PIOBU pins
  dt-bindings: arm: atmel: describe SECUMOD usage as a GPIO controller
  gpio/mmc/of: Respect polarity in the device tree
  dt-bindings: gpio: rcar: Add r8a774c0 (RZ/G2E) support
  memory: omap-gpmc: Get the header of the enum
  ARM: omap1: Fix new user of gpiochip_request_own_desc()
  gpio: pca953x: Add regmap dependency for PCA953x driver
  gpio: raspberrypi-exp: decrease refcount on firmware dt node
  gpiolib: Fix return value of gpio_to_desc() stub if !GPIOLIB
  gpio: pca953x: Restore registers after suspend/resume cycle
  gpio: pca953x: Zap single use of pca953x_read_single()
  gpio: pca953x: Zap ad-hoc reg_output cache
  gpio: pca953x: Zap ad-hoc reg_direction cache
  gpio: pca953x: Perform basic regmap conversion
  ...

1 files changed, 41 insertions, 0 deletions

diff --git a/include/dt-bindings/gpio/tegra186-gpio.h b/include/dt-bindings/gpio/tegra186-gpio.h
index 463ad398fe3e..cabc5712e745 100644
--- a/include/dt-bindings/gpio/tegra186-gpio.h
+++ b/include/dt-bindings/gpio/tegra186-gpio.h
@@ -14,6 +14,34 @@
 #include <dt-bindings/gpio/gpio.h>
 
 /* GPIOs implemented by main GPIO controller */
+#define TEGRA186_MAIN_GPIO_PORT_A 0
+#define TEGRA186_MAIN_GPIO_PORT_B 1
+#define TEGRA186_MAIN_GPIO_PORT_C 2
+#define TEGRA186_MAIN_GPIO_PORT_D 3
+#define TEGRA186_MAIN_GPIO_PORT_E 4
+#define TEGRA186_MAIN_GPIO_PORT_F 5
+#define TEGRA186_MAIN_GPIO_PORT_G 6
+#define TEGRA186_MAIN_GPIO_PORT_H 7
+#define TEGRA186_MAIN_GPIO_PORT_I 8
+#define TEGRA186_MAIN_GPIO_PORT_J 9
+#define TEGRA186_MAIN_GPIO_PORT_K 10
+#define TEGRA186_MAIN_GPIO_PORT_L 11
+#define TEGRA186_MAIN_GPIO_PORT_M 12
+#define TEGRA186_MAIN_GPIO_PORT_N 13
+#define TEGRA186_MAIN_GPIO_PORT_O 14
+#define TEGRA186_MAIN_GPIO_PORT_P 15
+#define TEGRA186_MAIN_GPIO_PORT_Q 16
+#define TEGRA186_MAIN_GPIO_PORT_R 17
+#define TEGRA186_MAIN_GPIO_PORT_T 18
+#define TEGRA186_MAIN_GPIO_PORT_X 19
+#define TEGRA186_MAIN_GPIO_PORT_Y 20
+#define TEGRA186_MAIN_GPIO_PORT_BB 21
+#define TEGRA186_MAIN_GPIO_PORT_CC 22
+
+#define TEGRA186_MAIN_GPIO(port, offset) \
+	((TEGRA186_MAIN_GPIO_PORT_##port * 8) + offset)
+
+/* need to keep these for backwards-compatibility */
 #define TEGRA_MAIN_GPIO_PORT_A 0
 #define TEGRA_MAIN_GPIO_PORT_B 1
 #define TEGRA_MAIN_GPIO_PORT_C 2
@@ -42,6 +70,19 @@
 	((TEGRA_MAIN_GPIO_PORT_##port * 8) + offset)
 
 /* GPIOs implemented by AON GPIO controller */
+#define TEGRA186_AON_GPIO_PORT_S 0
+#define TEGRA186_AON_GPIO_PORT_U 1
+#define TEGRA186_AON_GPIO_PORT_V 2
+#define TEGRA186_AON_GPIO_PORT_W 3
+#define TEGRA186_AON_GPIO_PORT_Z 4
+#define TEGRA186_AON_GPIO_PORT_AA 5
+#define TEGRA186_AON_GPIO_PORT_EE 6
+#define TEGRA186_AON_GPIO_PORT_FF 7
+
+#define TEGRA186_AON_GPIO(port, offset) \
+	((TEGRA186_AON_GPIO_PORT_##port * 8) + offset)
+
+/* need to keep these for backwards-compatibility */
 #define TEGRA_AON_GPIO_PORT_S 0
 #define TEGRA_AON_GPIO_PORT_U 1
 #define TEGRA_AON_GPIO_PORT_V 2