diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2023-06-29 10:11:10 -0700 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2023-06-29 10:11:10 -0700 |
commit | e5476f57b32621eb8eab892a908df4d0b4808835 (patch) | |
tree | 5b8afd97980b98201aba7aa24cf33c7b389e596d /arch/arm/mach-omap1/board-osk.c | |
parent | ff7ddcf0db48a7d9ae536eb0875428117be1d1f1 (diff) | |
parent | 0ff9f5e57c5bb45b6b807a4d466228de39d8cd2f (diff) | |
download | linux-e5476f57b32621eb8eab892a908df4d0b4808835.tar.gz linux-e5476f57b32621eb8eab892a908df4d0b4808835.tar.bz2 linux-e5476f57b32621eb8eab892a908df4d0b4808835.zip |
Merge tag 'gpio-updates-for-v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio updates from Bartosz Golaszewski:
"We have two new drivers, some improvements to the core code, lots of
different updates to existing GPIO drivers and some dt-bindings on
top.
There's nothing controversial in here and almost everything has been
in next for more than a week (95% a lot longer than this). The only
thing that has spent less time in next is a new driver so no risk of
regressions.
The single merge pulls in changes that remove all usage of global GPIO
numbers from arch/arm/mach-omap.
Core GPIO library:
- remove unused symbols
- don't spam the kernel log with messages about hogs
- remove old sysfs API cruft
- improve handling of GPIO masks
New drivers:
- add a driver for the BlueField-3 GPIO controller
- add GPIO support for the TPS65219 PMIC
Driver improvements:
- extend the gpio-aggregator driver to support ramp-up/ramp-down
delay
- remove unnecessary CONFIG_OF guards from gpio-aggregator
- readability improvements in gpio-tangier
- switch i2c drivers back to using probe() now that it's been
converted in the i2c subsystem to not taking the id parameter
- remove unused inclusions of of_gpio.h in several drivers
- make pm ops static in gpio-davinci and fix a comment
- use more devres in drivers to shrink and simplify the code
- add missing include in gpio-sa1100
- add HAS_IOPORT KConfig dependency where needed
- add permissions checks before accessing pins in gpio-tegra186
- convert the gpio-zynq driver to using immutable irqchips
- preserve output settings set by the bootloader in gpio-mpc8xxx
Selftests:
- tweak the variable naming in script tests
Device tree updates:
- convert gpio-mmio and gpio-stmpe to YAML
- add parsing of GPIO hogs to gpio-vf610
- add bindings for the Cirrus EP93xx GPIO controller
- add gpio-line-names property to the gpio-pca9570 bindings
- extend the binding for x-powers,axp209 with another block"
* tag 'gpio-updates-for-v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: (58 commits)
of: unittest: drop assertions for GPIO hog messages
gpiolib: Drop unused domain_ops memeber of GPIO IRQ chip
gpio: synq: remove unused zynq_gpio_irq_reqres/zynq_gpio_irq_relres
dt-bindings: gpio: gpio-vf610: Add parsing of hogs
gpio: lpc18xx: Remove unused of_gpio.h inclusion
gpio: xra1403: Remove unused of_gpio.h inclusion
gpio: mpc8xxx: Remove unused of_gpio.h inclusion
dt-bindings: gpio: Add Cirrus EP93xx
gpio: mpc8xxx: latch GPIOs state on module load when configured as output
selftests: gpio: gpio-sim: Use same variable name for sysfs pathname
gpio: mlxbf3: Add gpio driver support
gpio: delay: Remove duplicative functionality
gpio: aggregator: Set up a parser of delay line parameters
gpio: aggregator: Support delay for setting up individual GPIOs
gpio: aggregator: Remove CONFIG_OF and of_match_ptr() protections
dt-bindings: gpio: pca9570: add gpio-line-names property
gpiolib: remove unused gpio_cansleep()
gpio: tps65219: add GPIO support for TPS65219 PMIC
gpio: zynq: fix zynqmp_gpio not an immutable chip warning
gpio: davinci: make davinci_gpio_dev_pm_ops static
...
Diffstat (limited to 'arch/arm/mach-omap1/board-osk.c')
-rw-r--r-- | arch/arm/mach-omap1/board-osk.c | 146 |
1 files changed, 102 insertions, 44 deletions
diff --git a/arch/arm/mach-omap1/board-osk.c b/arch/arm/mach-omap1/board-osk.c index 46eda4ff4797..7d5e6f9039d5 100644 --- a/arch/arm/mach-omap1/board-osk.c +++ b/arch/arm/mach-omap1/board-osk.c @@ -25,7 +25,8 @@ * with this program; if not, write to the Free Software Foundation, Inc., * 675 Mass Ave, Cambridge, MA 02139, USA. */ -#include <linux/gpio.h> +#include <linux/gpio/consumer.h> +#include <linux/gpio/driver.h> #include <linux/gpio/machine.h> #include <linux/kernel.h> #include <linux/init.h> @@ -64,13 +65,12 @@ /* TPS65010 has four GPIOs. nPG and LED2 can be treated like GPIOs with * alternate pin configurations for hardware-controlled blinking. */ -#define OSK_TPS_GPIO_BASE (OMAP_MAX_GPIO_LINES + 16 /* MPUIO */) -# define OSK_TPS_GPIO_USB_PWR_EN (OSK_TPS_GPIO_BASE + 0) -# define OSK_TPS_GPIO_LED_D3 (OSK_TPS_GPIO_BASE + 1) -# define OSK_TPS_GPIO_LAN_RESET (OSK_TPS_GPIO_BASE + 2) -# define OSK_TPS_GPIO_DSP_PWR_EN (OSK_TPS_GPIO_BASE + 3) -# define OSK_TPS_GPIO_LED_D9 (OSK_TPS_GPIO_BASE + 4) -# define OSK_TPS_GPIO_LED_D2 (OSK_TPS_GPIO_BASE + 5) +#define OSK_TPS_GPIO_USB_PWR_EN 0 +#define OSK_TPS_GPIO_LED_D3 1 +#define OSK_TPS_GPIO_LAN_RESET 2 +#define OSK_TPS_GPIO_DSP_PWR_EN 3 +#define OSK_TPS_GPIO_LED_D9 4 +#define OSK_TPS_GPIO_LED_D2 5 static struct mtd_partition osk_partitions[] = { /* bootloader (U-Boot, etc) in first sector */ @@ -174,11 +174,20 @@ static const struct gpio_led tps_leds[] = { /* NOTE: D9 and D2 have hardware blink support. * Also, D9 requires non-battery power. */ - { .gpio = OSK_TPS_GPIO_LED_D9, .name = "d9", - .default_trigger = "disk-activity", }, - { .gpio = OSK_TPS_GPIO_LED_D2, .name = "d2", }, - { .gpio = OSK_TPS_GPIO_LED_D3, .name = "d3", .active_low = 1, - .default_trigger = "heartbeat", }, + { .name = "d9", .default_trigger = "disk-activity", }, + { .name = "d2", }, + { .name = "d3", .default_trigger = "heartbeat", }, +}; + +static struct gpiod_lookup_table tps_leds_gpio_table = { + .dev_id = "leds-gpio", + .table = { + /* Use local offsets on TPS65010 */ + GPIO_LOOKUP_IDX("tps65010", OSK_TPS_GPIO_LED_D9, NULL, 0, GPIO_ACTIVE_HIGH), + GPIO_LOOKUP_IDX("tps65010", OSK_TPS_GPIO_LED_D2, NULL, 1, GPIO_ACTIVE_HIGH), + GPIO_LOOKUP_IDX("tps65010", OSK_TPS_GPIO_LED_D3, NULL, 2, GPIO_ACTIVE_LOW), + { } + }, }; static struct gpio_led_platform_data tps_leds_data = { @@ -192,29 +201,34 @@ static struct platform_device osk5912_tps_leds = { .dev.platform_data = &tps_leds_data, }; -static int osk_tps_setup(struct i2c_client *client, void *context) +/* The board just hold these GPIOs hogged from setup to teardown */ +static struct gpio_desc *eth_reset; +static struct gpio_desc *vdd_dsp; + +static int osk_tps_setup(struct i2c_client *client, struct gpio_chip *gc) { + struct gpio_desc *d; if (!IS_BUILTIN(CONFIG_TPS65010)) return -ENOSYS; /* Set GPIO 1 HIGH to disable VBUS power supply; * OHCI driver powers it up/down as needed. */ - gpio_request(OSK_TPS_GPIO_USB_PWR_EN, "n_vbus_en"); - gpio_direction_output(OSK_TPS_GPIO_USB_PWR_EN, 1); + d = gpiochip_request_own_desc(gc, OSK_TPS_GPIO_USB_PWR_EN, "n_vbus_en", + GPIO_ACTIVE_HIGH, GPIOD_OUT_HIGH); /* Free the GPIO again as the driver will request it */ - gpio_free(OSK_TPS_GPIO_USB_PWR_EN); + gpiochip_free_own_desc(d); /* Set GPIO 2 high so LED D3 is off by default */ tps65010_set_gpio_out_value(GPIO2, HIGH); /* Set GPIO 3 low to take ethernet out of reset */ - gpio_request(OSK_TPS_GPIO_LAN_RESET, "smc_reset"); - gpio_direction_output(OSK_TPS_GPIO_LAN_RESET, 0); + eth_reset = gpiochip_request_own_desc(gc, OSK_TPS_GPIO_LAN_RESET, "smc_reset", + GPIO_ACTIVE_HIGH, GPIOD_OUT_LOW); /* GPIO4 is VDD_DSP */ - gpio_request(OSK_TPS_GPIO_DSP_PWR_EN, "dsp_power"); - gpio_direction_output(OSK_TPS_GPIO_DSP_PWR_EN, 1); + vdd_dsp = gpiochip_request_own_desc(gc, OSK_TPS_GPIO_DSP_PWR_EN, "dsp_power", + GPIO_ACTIVE_HIGH, GPIOD_OUT_HIGH); /* REVISIT if DSP support isn't configured, power it off ... */ /* Let LED1 (D9) blink; leds-gpio may override it */ @@ -232,15 +246,22 @@ static int osk_tps_setup(struct i2c_client *client, void *context) /* register these three LEDs */ osk5912_tps_leds.dev.parent = &client->dev; + gpiod_add_lookup_table(&tps_leds_gpio_table); platform_device_register(&osk5912_tps_leds); return 0; } +static void osk_tps_teardown(struct i2c_client *client, struct gpio_chip *gc) +{ + gpiochip_free_own_desc(eth_reset); + gpiochip_free_own_desc(vdd_dsp); +} + static struct tps65010_board tps_board = { - .base = OSK_TPS_GPIO_BASE, .outmask = 0x0f, .setup = osk_tps_setup, + .teardown = osk_tps_teardown, }; static struct i2c_board_info __initdata osk_i2c_board_info[] = { @@ -263,11 +284,6 @@ static void __init osk_init_smc91x(void) { u32 l; - if ((gpio_request(0, "smc_irq")) < 0) { - printk("Error requesting gpio 0 for smc91x irq\n"); - return; - } - /* Check EMIFS wait states to fix errors with SMC_GET_PKT_HDR */ l = omap_readl(EMIFS_CCS(1)); l |= 0x3; @@ -279,10 +295,6 @@ static void __init osk_init_cf(int seg) struct resource *res = &osk5912_cf_resources[1]; omap_cfg_reg(M7_1610_GPIO62); - if ((gpio_request(62, "cf_irq")) < 0) { - printk("Error requesting gpio 62 for CF irq\n"); - return; - } switch (seg) { /* NOTE: CS0 could be configured too ... */ @@ -308,18 +320,17 @@ static void __init osk_init_cf(int seg) seg, omap_readl(EMIFS_CCS(seg)), omap_readl(EMIFS_ACS(seg))); omap_writel(0x0004a1b3, EMIFS_CCS(seg)); /* synch mode 4 etc */ omap_writel(0x00000000, EMIFS_ACS(seg)); /* OE hold/setup */ - - /* the CF I/O IRQ is really active-low */ - irq_set_irq_type(gpio_to_irq(62), IRQ_TYPE_EDGE_FALLING); } static struct gpiod_lookup_table osk_usb_gpio_table = { .dev_id = "ohci", .table = { /* Power GPIO on the I2C-attached TPS65010 */ - GPIO_LOOKUP("tps65010", 0, "power", GPIO_ACTIVE_HIGH), + GPIO_LOOKUP("tps65010", OSK_TPS_GPIO_USB_PWR_EN, "power", + GPIO_ACTIVE_HIGH), GPIO_LOOKUP(OMAP_GPIO_LABEL, 9, "overcurrent", GPIO_ACTIVE_HIGH), + { } }, }; @@ -341,8 +352,32 @@ static struct omap_usb_config osk_usb_config __initdata = { #define EMIFS_CS3_VAL (0x88013141) +static struct gpiod_lookup_table osk_irq_gpio_table = { + .dev_id = NULL, + .table = { + /* GPIO used for SMC91x IRQ */ + GPIO_LOOKUP(OMAP_GPIO_LABEL, 0, "smc_irq", + GPIO_ACTIVE_HIGH), + /* GPIO used for CF IRQ */ + GPIO_LOOKUP("gpio-48-63", 14, "cf_irq", + GPIO_ACTIVE_HIGH), + /* GPIO used by the TPS65010 chip */ + GPIO_LOOKUP("mpuio", 1, "tps65010", + GPIO_ACTIVE_HIGH), + /* GPIOs used for serial wakeup IRQs */ + GPIO_LOOKUP_IDX("gpio-32-47", 5, "wakeup", 0, + GPIO_ACTIVE_HIGH), + GPIO_LOOKUP_IDX("gpio-16-31", 2, "wakeup", 1, + GPIO_ACTIVE_HIGH), + GPIO_LOOKUP_IDX("gpio-48-63", 1, "wakeup", 2, + GPIO_ACTIVE_HIGH), + { } + }, +}; + static void __init osk_init(void) { + struct gpio_desc *d; u32 l; osk_init_smc91x(); @@ -359,10 +394,31 @@ static void __init osk_init(void) osk_flash_resource.end = osk_flash_resource.start = omap_cs3_phys(); osk_flash_resource.end += SZ_32M - 1; - osk5912_smc91x_resources[1].start = gpio_to_irq(0); - osk5912_smc91x_resources[1].end = gpio_to_irq(0); - osk5912_cf_resources[0].start = gpio_to_irq(62); - osk5912_cf_resources[0].end = gpio_to_irq(62); + + /* + * Add the GPIOs to be used as IRQs and immediately look them up + * to be passed as an IRQ resource. This is ugly but should work + * until the day we convert to device tree. + */ + gpiod_add_lookup_table(&osk_irq_gpio_table); + + d = gpiod_get(NULL, "smc_irq", GPIOD_IN); + if (IS_ERR(d)) { + pr_err("Unable to get SMC IRQ GPIO descriptor\n"); + } else { + irq_set_irq_type(gpiod_to_irq(d), IRQ_TYPE_EDGE_RISING); + osk5912_smc91x_resources[1] = DEFINE_RES_IRQ(gpiod_to_irq(d)); + } + + d = gpiod_get(NULL, "cf_irq", GPIOD_IN); + if (IS_ERR(d)) { + pr_err("Unable to get CF IRQ GPIO descriptor\n"); + } else { + /* the CF I/O IRQ is really active-low */ + irq_set_irq_type(gpiod_to_irq(d), IRQ_TYPE_EDGE_FALLING); + osk5912_cf_resources[0] = DEFINE_RES_IRQ(gpiod_to_irq(d)); + } + platform_add_devices(osk5912_devices, ARRAY_SIZE(osk5912_devices)); l = omap_readl(USB_TRANSCEIVER_CTRL); @@ -372,13 +428,15 @@ static void __init osk_init(void) gpiod_add_lookup_table(&osk_usb_gpio_table); omap1_usb_init(&osk_usb_config); + omap_serial_init(); + /* irq for tps65010 chip */ /* bootloader effectively does: omap_cfg_reg(U19_1610_MPUIO1); */ - if (gpio_request(OMAP_MPUIO(1), "tps65010") == 0) - gpio_direction_input(OMAP_MPUIO(1)); - - omap_serial_init(); - osk_i2c_board_info[0].irq = gpio_to_irq(OMAP_MPUIO(1)); + d = gpiod_get(NULL, "tps65010", GPIOD_IN); + if (IS_ERR(d)) + pr_err("Unable to get TPS65010 IRQ GPIO descriptor\n"); + else + osk_i2c_board_info[0].irq = gpiod_to_irq(d); omap_register_i2c_bus(1, 400, osk_i2c_board_info, ARRAY_SIZE(osk_i2c_board_info)); } |