aboutsummaryrefslogtreecommitdiff
path: root/include/linux/spi
diff options
context:
space:
mode:
authorLinus Torvalds2017-07-06 11:38:59 -0700
committerLinus Torvalds2017-07-06 11:38:59 -0700
commitac7b75966c9c86426b55fe1c50ae148aa4571075 (patch)
treecf57426162eb8ccf60f0452fc23a4b7d7c7175d5 /include/linux/spi
parent4f5dfdd29065a0d1d0e61d9744e14d1d852518be (diff)
parent3fa53ec2ed885b0aec3f0472e3b4a8a6f1cd748c (diff)
Merge tag 'pinctrl-v4.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin control updates from Linus Walleij: "This is the big bulk of pin control changes for the v4.13 series: Core: - The documentation is moved over to RST. - We now have agreed bindings for enabling input and output buffers without actually enabling input and/or output on a pin. We are chiseling out some details of pin control electronics. New drivers: - ZTE ZX - Renesas RZA1 - MIPS Ingenic JZ47xx: also switch over existing drivers in the tree to use this pin controller and consolidate earlier spread out code. - Microschip MCP23S08: this driver is migrated from the GPIO subsystem and totally rewritten to use proper pin control. All users are switched over. New subdrivers: - Renesas R8A7743 and R8A7745. - Allwinner Sunxi A83T R_PIO. - Marvell MVEBU Armada CP110 and AP806. - Intel Cannon Lake PCH. - Qualcomm IPQ8074. Notable improvements: - IRQ support on the Marvell MVEBU Armada 37xx. - Meson driver supports HDMI CEC, AO, I2S, SPDIF and PWM. - Rockchip driver now supports iomux-route switching for RK3228, RK3328 and RK3399. - Rockchip A10 and A20 are merged into a single driver. - STM32 has improved GPIO support. - Samsung Exynos drivers are split per ARMv7 and ARMv8. - Marvell MVEBU is converted to use regmap for register access. Maintenance: - Several Renesas SH-PFC refactorings and updates. - Serious code size cut for Mediatek MT7623. - Misc janitorial and MAINTAINERS fixes" * tag 'pinctrl-v4.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (137 commits) pinctrl: samsung: Remove bogus irq_[un]mask from resource management pinctrl: rza1: make structures rza1_gpiochip_template and rza1_pinmux_ops static pinctrl: rza1: Remove unneeded wrong check for wrong variable pinctrl: qcom: Add ipq8074 pinctrl driver pinctrl: freescale: imx7d: make of_device_ids const. pinctrl: DT: extend the pinmux property to support integers array pinctrl: generic: Add output-enable property pinctrl: armada-37xx: Fix number of pin in sdio_sb pinctrl: armada-37xx: Fix uart2 group selection register mask pinctrl: bcm2835: Avoid warning from __irq_do_set_handler pinctrl: sh-pfc: r8a7795: Add PWM support MAINTAINERS: Add Qualcomm pinctrl drivers section arm: dts: dt-bindings: Add Renesas RZ/A1 pinctrl header dt-bindings: pinctrl: Add RZ/A1 bindings doc pinctrl: Renesas RZ/A1 pin and gpio controller pinctrl: sh-pfc: r8a7792: Add SCIF1 and SCIF2 pin groups pinctrl.txt: move it to the driver-api book pinctrl: ingenic: checking for NULL instead of IS_ERR() pinctrl: uniphier: fix WARN_ON() of pingroups dump on LD20 pinctrl: uniphier: fix WARN_ON() of pingroups dump on LD11 ...
Diffstat (limited to 'include/linux/spi')
-rw-r--r--include/linux/spi/mcp23s08.h38
1 files changed, 6 insertions, 32 deletions
diff --git a/include/linux/spi/mcp23s08.h b/include/linux/spi/mcp23s08.h
index aa07d7b32568..82d96a346e6f 100644
--- a/include/linux/spi/mcp23s08.h
+++ b/include/linux/spi/mcp23s08.h
@@ -1,11 +1,3 @@
-
-/* FIXME driver should be able to handle IRQs... */
-
-struct mcp23s08_chip_info {
- bool is_present; /* true if populated */
- unsigned pullups; /* BIT(x) means enable pullup x */
-};
-
struct mcp23s08_platform_data {
/* For mcp23s08, up to 4 slaves (numbered 0..3) can share one SPI
* chipselect, each providing 1 gpio_chip instance with 8 gpios.
@@ -13,31 +5,13 @@ struct mcp23s08_platform_data {
* chipselect, each providing 1 gpio_chip (port A + port B) with
* 16 gpios.
*/
- struct mcp23s08_chip_info chip[8];
+ u32 spi_present_mask;
- /* "base" is the number of the first GPIO. Dynamic assignment is
- * not currently supported, and even if there are gaps in chip
- * addressing the GPIO numbers are sequential .. so for example
- * if only slaves 0 and 3 are present, their GPIOs range from
- * base to base+15 (or base+31 for s17 variant).
+ /* "base" is the number of the first GPIO or -1 for dynamic
+ * assignment. If there are gaps in chip addressing the GPIO
+ * numbers are sequential .. so for example if only slaves 0
+ * and 3 are present, their GPIOs range from base to base+15
+ * (or base+31 for s17 variant).
*/
unsigned base;
- /* Marks the device as a interrupt controller.
- * NOTE: The interrupt functionality is only supported for i2c
- * versions of the chips. The spi chips can also do the interrupts,
- * but this is not supported by the linux driver yet.
- */
- bool irq_controller;
-
- /* Sets the mirror flag in the IOCON register. Devices
- * with two interrupt outputs (these are the devices ending with 17 and
- * those that have 16 IOs) have two IO banks: IO 0-7 form bank 1 and
- * IO 8-15 are bank 2. These chips have two different interrupt outputs:
- * One for bank 1 and another for bank 2. If irq-mirror is set, both
- * interrupts are generated regardless of the bank that an input change
- * occurred on. If it is not set, the interrupt are only generated for
- * the bank they belong to.
- * On devices with only one interrupt output this property is useless.
- */
- bool mirror;
};