diff options
30 files changed, 578 insertions, 417 deletions
@@ -18,6 +18,7 @@ Aleksey Gorelov <aleksey_gorelov@phoenix.com> Aleksandar Markovic <aleksandar.markovic@mips.com> <aleksandar.markovic@imgtec.com> Al Viro <viro@ftp.linux.org.uk> Al Viro <viro@zenIV.linux.org.uk> +Andi Shyti <andi@etezian.org> <andi.shyti@samsung.com> Andreas Herrmann <aherrman@de.ibm.com> Andrey Ryabinin <ryabinin.a.a@gmail.com> <a.ryabinin@samsung.com> Andrew Morton <akpm@linux-foundation.org> diff --git a/Documentation/devicetree/bindings/spi/sh-msiof.txt b/Documentation/devicetree/bindings/spi/sh-msiof.txt index 80710f0f0448..39806329c193 100644 --- a/Documentation/devicetree/bindings/spi/sh-msiof.txt +++ b/Documentation/devicetree/bindings/spi/sh-msiof.txt @@ -10,6 +10,7 @@ Required properties: "renesas,msiof-r8a7794" (R-Car E2) "renesas,msiof-r8a7795" (R-Car H3) "renesas,msiof-r8a7796" (R-Car M3-W) + "renesas,msiof-r8a77965" (R-Car M3-N) "renesas,msiof-sh73a0" (SH-Mobile AG5) "renesas,sh-mobile-msiof" (generic SH-Mobile compatibile device) "renesas,rcar-gen2-msiof" (generic R-Car Gen2 and RZ/G1 compatible device) diff --git a/Documentation/devicetree/bindings/spi/spi-gpio.txt b/Documentation/devicetree/bindings/spi/spi-gpio.txt index a95603bcf6ff..52db562f17a4 100644 --- a/Documentation/devicetree/bindings/spi/spi-gpio.txt +++ b/Documentation/devicetree/bindings/spi/spi-gpio.txt @@ -1,18 +1,30 @@ SPI-GPIO devicetree bindings +This represents a group of 3-n GPIO lines used for bit-banged SPI on dedicated +GPIO lines. + Required properties: - compatible: should be set to "spi-gpio" - #address-cells: should be set to <0x1> - ranges - - gpio-sck: GPIO spec for the SCK line to use - - gpio-miso: GPIO spec for the MISO line to use - - gpio-mosi: GPIO spec for the MOSI line to use + - sck-gpios: GPIO spec for the SCK line to use + - miso-gpios: GPIO spec for the MISO line to use + - mosi-gpios: GPIO spec for the MOSI line to use - cs-gpios: GPIOs to use for chipselect lines. Not needed if num-chipselects = <0>. - num-chipselects: Number of chipselect lines. Should be <0> if a single device with no chip select is connected. +Deprecated bindings: + +These legacy GPIO line bindings can alternatively be used to define the +GPIO lines used, they should not be used in new device trees. + + - gpio-sck: GPIO spec for the SCK line to use + - gpio-miso: GPIO spec for the MISO line to use + - gpio-mosi: GPIO spec for the MOSI line to use + Example: spi { @@ -20,9 +32,9 @@ Example: #address-cells = <0x1>; ranges; - gpio-sck = <&gpio 95 0>; - gpio-miso = <&gpio 98 0>; - gpio-mosi = <&gpio 97 0>; + sck-gpios = <&gpio 95 0>; + miso-gpios = <&gpio 98 0>; + mosi-gpios = <&gpio 97 0>; cs-gpios = <&gpio 125 0>; num-chipselects = <1>; diff --git a/MAINTAINERS b/MAINTAINERS index 6acc800aa28c..5a9634a0eeb4 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -12181,7 +12181,7 @@ F: Documentation/devicetree/bindings/clock/exynos*.txt SAMSUNG SPI DRIVERS M: Kukjin Kim <kgene@kernel.org> M: Krzysztof Kozlowski <krzk@kernel.org> -M: Andi Shyti <andi.shyti@samsung.com> +M: Andi Shyti <andi@etezian.org> L: linux-spi@vger.kernel.org L: linux-samsung-soc@vger.kernel.org (moderated for non-subscribers) S: Maintained diff --git a/arch/arm/mach-pxa/cm-x300.c b/arch/arm/mach-pxa/cm-x300.c index c487401b6fdb..69d7f48a4183 100644 --- a/arch/arm/mach-pxa/cm-x300.c +++ b/arch/arm/mach-pxa/cm-x300.c @@ -23,6 +23,7 @@ #include <linux/clk.h> #include <linux/gpio.h> +#include <linux/gpio/machine.h> #include <linux/dm9000.h> #include <linux/leds.h> #include <linux/platform_data/rtc-v3020.h> @@ -343,9 +344,6 @@ static inline void cm_x300_init_bl(void) {} #define LCD_SPI_BUS_NUM (1) static struct spi_gpio_platform_data cm_x300_spi_gpio_pdata = { - .sck = GPIO_LCD_SCL, - .mosi = GPIO_LCD_DIN, - .miso = GPIO_LCD_DOUT, .num_chipselect = 1, }; @@ -357,6 +355,21 @@ static struct platform_device cm_x300_spi_gpio = { }, }; +static struct gpiod_lookup_table cm_x300_spi_gpiod_table = { + .dev_id = "spi_gpio", + .table = { + GPIO_LOOKUP("gpio-pxa", GPIO_LCD_SCL, + "sck", GPIO_ACTIVE_HIGH), + GPIO_LOOKUP("gpio-pxa", GPIO_LCD_DIN, + "mosi", GPIO_ACTIVE_HIGH), + GPIO_LOOKUP("gpio-pxa", GPIO_LCD_DOUT, + "miso", GPIO_ACTIVE_HIGH), + GPIO_LOOKUP("gpio-pxa", GPIO_LCD_CS, + "cs", GPIO_ACTIVE_HIGH), + { }, + }, +}; + static struct tdo24m_platform_data cm_x300_tdo24m_pdata = { .model = TDO35S, }; @@ -367,7 +380,6 @@ static struct spi_board_info cm_x300_spi_devices[] __initdata = { .max_speed_hz = 1000000, .bus_num = LCD_SPI_BUS_NUM, .chip_select = 0, - .controller_data = (void *) GPIO_LCD_CS, .platform_data = &cm_x300_tdo24m_pdata, }, }; @@ -376,6 +388,7 @@ static void __init cm_x300_init_spi(void) { spi_register_board_info(cm_x300_spi_devices, ARRAY_SIZE(cm_x300_spi_devices)); + gpiod_add_lookup_table(&cm_x300_spi_gpiod_table); platform_device_register(&cm_x300_spi_gpio); } #else diff --git a/arch/arm/mach-pxa/raumfeld.c b/arch/arm/mach-pxa/raumfeld.c index 4d5d05cf87d6..e7ac7dcb95e9 100644 --- a/arch/arm/mach-pxa/raumfeld.c +++ b/arch/arm/mach-pxa/raumfeld.c @@ -646,9 +646,6 @@ static void __init raumfeld_lcd_init(void) */ static struct spi_gpio_platform_data raumfeld_spi_platform_data = { - .sck = GPIO_SPI_CLK, - .mosi = GPIO_SPI_MOSI, - .miso = GPIO_SPI_MISO, .num_chipselect = 3, }; @@ -660,6 +657,25 @@ static struct platform_device raumfeld_spi_device = { } }; +static struct gpiod_lookup_table raumfeld_spi_gpiod_table = { + .dev_id = "spi_gpio", + .table = { + GPIO_LOOKUP("gpio-0", GPIO_SPI_CLK, + "sck", GPIO_ACTIVE_HIGH), + GPIO_LOOKUP("gpio-0", GPIO_SPI_MOSI, + "mosi", GPIO_ACTIVE_HIGH), + GPIO_LOOKUP("gpio-0", GPIO_SPI_MISO, + "miso", GPIO_ACTIVE_HIGH), + GPIO_LOOKUP_IDX("gpio-0", GPIO_SPDIF_CS, + "cs", 0, GPIO_ACTIVE_HIGH), + GPIO_LOOKUP_IDX("gpio-0", GPIO_ACCEL_CS, + "cs", 1, GPIO_ACTIVE_HIGH), + GPIO_LOOKUP_IDX("gpio-0", GPIO_MCLK_DAC_CS, + "cs", 2, GPIO_ACTIVE_HIGH), + { }, + }, +}; + static struct lis3lv02d_platform_data lis3_pdata = { .click_flags = LIS3_CLICK_SINGLE_X | LIS3_CLICK_SINGLE_Y | @@ -680,7 +696,6 @@ static struct lis3lv02d_platform_data lis3_pdata = { .max_speed_hz = 10000, \ .bus_num = 0, \ .chip_select = 0, \ - .controller_data = (void *) GPIO_SPDIF_CS, \ } #define SPI_LIS3 \ @@ -689,7 +704,6 @@ static struct lis3lv02d_platform_data lis3_pdata = { .max_speed_hz = 1000000, \ .bus_num = 0, \ .chip_select = 1, \ - .controller_data = (void *) GPIO_ACCEL_CS, \ .platform_data = &lis3_pdata, \ .irq = PXA_GPIO_TO_IRQ(GPIO_ACCEL_IRQ), \ } @@ -700,7 +714,6 @@ static struct lis3lv02d_platform_data lis3_pdata = { .max_speed_hz = 1000000, \ .bus_num = 0, \ .chip_select = 2, \ - .controller_data = (void *) GPIO_MCLK_DAC_CS, \ } static struct spi_board_info connector_spi_devices[] __initdata = { @@ -1066,6 +1079,7 @@ static void __init raumfeld_common_init(void) else gpio_direction_output(GPIO_SHUTDOWN_SUPPLY, 0); + gpiod_add_lookup_table(&raumfeld_spi_gpiod_table); platform_add_devices(ARRAY_AND_SIZE(raumfeld_common_devices)); i2c_register_board_info(1, &raumfeld_pwri2c_board_info, 1); } diff --git a/arch/arm/mach-s3c24xx/mach-jive.c b/arch/arm/mach-s3c24xx/mach-jive.c index a3ddbbbd6d92..59589a4a0d4b 100644 --- a/arch/arm/mach-s3c24xx/mach-jive.c +++ b/arch/arm/mach-s3c24xx/mach-jive.c @@ -12,6 +12,7 @@ #include <linux/timer.h> #include <linux/init.h> #include <linux/gpio.h> +#include <linux/gpio/machine.h> #include <linux/syscore_ops.h> #include <linux/serial_core.h> #include <linux/serial_s3c.h> @@ -388,32 +389,53 @@ static struct ili9320_platdata jive_lcm_config = { /* LCD SPI support */ static struct spi_gpio_platform_data jive_lcd_spi = { - .sck = S3C2410_GPG(8), - .mosi = S3C2410_GPB(8), - .miso = SPI_GPIO_NO_MISO, + .num_chipselect = 1, }; static struct platform_device jive_device_lcdspi = { - .name = "spi-gpio", + .name = "spi_gpio", .id = 1, .dev.platform_data = &jive_lcd_spi, }; +static struct gpiod_lookup_table jive_lcdspi_gpiod_table = { + .dev_id = "spi_gpio", + .table = { + GPIO_LOOKUP("GPIOG", 8, + "sck", GPIO_ACTIVE_HIGH), + GPIO_LOOKUP("GPIOB", 8, + "mosi", GPIO_ACTIVE_HIGH), + GPIO_LOOKUP("GPIOB", 7, + "cs", GPIO_ACTIVE_HIGH), + { }, + }, +}; /* WM8750 audio code SPI definition */ static struct spi_gpio_platform_data jive_wm8750_spi = { - .sck = S3C2410_GPB(4), - .mosi = S3C2410_GPB(9), - .miso = SPI_GPIO_NO_MISO, + .num_chipselect = 1, }; static struct platform_device jive_device_wm8750 = { - .name = "spi-gpio", + .name = "spi_gpio", .id = 2, .dev.platform_data = &jive_wm8750_spi, }; +static struct gpiod_lookup_table jive_wm8750_gpiod_table = { + .dev_id = "spi_gpio", + .table = { + GPIO_LOOKUP("GPIOB", 4, + "gpio-sck", GPIO_ACTIVE_HIGH), + GPIO_LOOKUP("GPIOB", 9, + "gpio-mosi", GPIO_ACTIVE_HIGH), + GPIO_LOOKUP("GPIOH", 10, + "cs", GPIO_ACTIVE_HIGH), + { }, + }, +}; + /* JIVE SPI devices. */ static struct spi_board_info __initdata jive_spi_devs[] = { @@ -424,14 +446,12 @@ static struct spi_board_info __initdata jive_spi_devs[] = { .mode = SPI_MODE_3, /* CPOL=1, CPHA=1 */ .max_speed_hz = 100000, .platform_data = &jive_lcm_config, - .controller_data = (void *)S3C2410_GPB(7), }, { .modalias = "WM8750", .bus_num = 2, .chip_select = 0, .mode = SPI_MODE_0, /* CPOL=0, CPHA=0 */ .max_speed_hz = 100000, - .controller_data = (void *)S3C2410_GPH(10), }, }; @@ -619,25 +639,12 @@ static void __init jive_machine_init(void) /** TODO - check that this is after the cmdline option! */ s3c_nand_set_platdata(&jive_nand_info); - /* initialise the spi */ - gpio_request(S3C2410_GPG(13), "lcm reset"); gpio_direction_output(S3C2410_GPG(13), 0); - gpio_request(S3C2410_GPB(7), "jive spi"); - gpio_direction_output(S3C2410_GPB(7), 1); - gpio_request_one(S3C2410_GPB(6), GPIOF_OUT_INIT_LOW, NULL); gpio_free(S3C2410_GPB(6)); - gpio_request_one(S3C2410_GPG(8), GPIOF_OUT_INIT_HIGH, NULL); - gpio_free(S3C2410_GPG(8)); - - /* initialise the WM8750 spi */ - - gpio_request(S3C2410_GPH(10), "jive wm8750 spi"); - gpio_direction_output(S3C2410_GPH(10), 1); - /* Turn off suspend on both USB ports, and switch the * selectable USB port to USB device mode. */ @@ -655,6 +662,8 @@ static void __init jive_machine_init(void) pm_power_off = jive_power_off; + gpiod_add_lookup_table(&jive_lcdspi_gpiod_table); + gpiod_add_lookup_table(&jive_wm8750_gpiod_table); platform_add_devices(jive_devices, ARRAY_SIZE(jive_devices)); } diff --git a/arch/arm/mach-s3c24xx/mach-qt2410.c b/arch/arm/mach-s3c24xx/mach-qt2410.c index 9c8373b8d9c3..5d48e5b6e738 100644 --- a/arch/arm/mach-s3c24xx/mach-qt2410.c +++ b/arch/arm/mach-s3c24xx/mach-qt2410.c @@ -11,6 +11,7 @@ #include <linux/timer.h> #include <linux/init.h> #include <linux/gpio.h> +#include <linux/gpio/machine.h> #include <linux/device.h> #include <linux/platform_device.h> #include <linux/serial_core.h> @@ -194,17 +195,30 @@ static struct platform_device qt2410_led = { /* SPI */ static struct spi_gpio_platform_data spi_gpio_cfg = { - .sck = S3C2410_GPG(7), - .mosi = S3C2410_GPG(6), - .miso = S3C2410_GPG(5), + .num_chipselect = 1, }; static struct platform_device qt2410_spi = { - .name = "spi-gpio", + .name = "spi_gpio", .id = 1, .dev.platform_data = &spi_gpio_cfg, }; +static struct gpiod_lookup_table qt2410_spi_gpiod_table = { + .dev_id = "spi_gpio", + .table = { + GPIO_LOOKUP("GPIOG", 7, + "sck", GPIO_ACTIVE_HIGH), + GPIO_LOOKUP("GPIOG", 6, + "mosi", GPIO_ACTIVE_HIGH), + GPIO_LOOKUP("GPIOG", 5, + "miso", GPIO_ACTIVE_HIGH), + GPIO_LOOKUP("GPIOB", 5, + "cs", GPIO_ACTIVE_HIGH), + { }, + }, +}; + /* Board devices */ static struct platform_device *qt2410_devices[] __initdata = { @@ -323,9 +337,7 @@ static void __init qt2410_machine_init(void) s3c24xx_udc_set_platdata(&qt2410_udc_cfg); s3c_i2c0_set_platdata(NULL); - WARN_ON(gpio_request(S3C2410_GPB(5), "spi cs")); - gpio_direction_output(S3C2410_GPB(5), 1); - + gpiod_add_lookup_table(&qt2410_spi_gpiod_table); platform_add_devices(qt2410_devices, ARRAY_SIZE(qt2410_devices)); s3c_pm_init(); } diff --git a/arch/arm/mach-s3c64xx/mach-smartq.c b/arch/arm/mach-s3c64xx/mach-smartq.c index 5655fe968b1f..951208f168e7 100644 --- a/arch/arm/mach-s3c64xx/mach-smartq.c +++ b/arch/arm/mach-s3c64xx/mach-smartq.c @@ -206,17 +206,30 @@ static int __init smartq_lcd_setup_gpio(void) /* GPM0 -> CS */ static struct spi_gpio_platform_data smartq_lcd_control = { - .sck = S3C64XX_GPM(1), - .mosi = S3C64XX_GPM(2), - .miso = S3C64XX_GPM(2), + .num_chipselect = 1, }; static struct platform_device smartq_lcd_control_device = { - .name = "spi-gpio", + .name = "spi_gpio", .id = 1, .dev.platform_data = &smartq_lcd_control, }; +static struct gpiod_lookup_table smartq_lcd_control_gpiod_table = { + .dev_id = "spi_gpio", + .table = { + GPIO_LOOKUP("GPIOM", 1, + "sck", GPIO_ACTIVE_HIGH), + GPIO_LOOKUP("GPIOM", 2, + "mosi", GPIO_ACTIVE_HIGH), + GPIO_LOOKUP("GPIOM", 3, + "miso", GPIO_ACTIVE_HIGH), + GPIO_LOOKUP("GPIOM", 0, + "cs", GPIO_ACTIVE_HIGH), + { }, + }, +}; + static void smartq_lcd_power_set(struct plat_lcd_data *pd, unsigned int power) { gpio_direction_output(S3C64XX_GPM(3), power); @@ -404,6 +417,7 @@ void __init smartq_machine_init(void) WARN_ON(smartq_wifi_init()); pwm_add_table(smartq_pwm_lookup, ARRAY_SIZE(smartq_pwm_lookup)); + gpiod_add_lookup_table(&smartq_lcd_control_gpiod_table); platform_add_devices(smartq_devices, ARRAY_SIZE(smartq_devices)); gpiod_add_lookup_table(&smartq_audio_gpios); diff --git a/arch/mips/alchemy/devboards/db1000.c b/arch/mips/alchemy/devboards/db1000.c index 433c4b9a9f0a..13e3c84859fe 100644 --- a/arch/mips/alchemy/devboards/db1000.c +++ b/arch/mips/alchemy/devboards/db1000.c @@ -22,6 +22,7 @@ #include <linux/clk.h> #include <linux/dma-mapping.h> #include <linux/gpio.h> +#include <linux/gpio/machine.h> #include <linux/init.h> #include <linux/interrupt.h> #include <linux/leds.h> @@ -447,9 +448,6 @@ static struct ads7846_platform_data db1100_touch_pd = { }; static struct spi_gpio_platform_data db1100_spictl_pd = { - .sck = 209, - .mosi = 208, - .miso = 207, .num_chipselect = 1, }; @@ -462,7 +460,6 @@ static struct spi_board_info db1100_spi_info[] __initdata = { .mode = 0, .irq = AU1100_GPIO21_INT, .platform_data = &db1100_touch_pd, - .controller_data = (void *)210, /* for spi_gpio: CS# GPIO210 */ }, }; @@ -474,6 +471,24 @@ static struct platform_device db1100_spi_dev = { }, }; +/* + * Alchemy GPIO 2 has its base at 200 so the GPIO lines + * 207 thru 210 are GPIOs at offset 7 thru 10 at this chip. + */ +static struct gpiod_lookup_table db1100_spi_gpiod_table = { + .dev_id = "spi_gpio", + .table = { + GPIO_LOOKUP("alchemy-gpio2", 9, + "sck", GPIO_ACTIVE_HIGH), + GPIO_LOOKUP("alchemy-gpio2", 8, + "mosi", GPIO_ACTIVE_HIGH), + GPIO_LOOKUP("alchemy-gpio2", 7, + "miso", GPIO_ACTIVE_HIGH), + GPIO_LOOKUP("alchemy-gpio2", 10, + "cs", GPIO_ACTIVE_HIGH), + { }, + }, +}; static struct platform_device *db1x00_devs[] = { &db1x00_codec_dev, @@ -541,6 +556,7 @@ int __init db1000_dev_setup(void) clk_put(p); platform_add_devices(db1100_devs, ARRAY_SIZE(db1100_devs)); + gpiod_add_lookup_table(&db1100_spi_gpiod_table); platform_device_register(&db1100_spi_dev); } else if (board == BCSR_WHOAMI_DB1000) { c0 = AU1000_GPIO2_INT; diff --git a/arch/mips/jz4740/board-qi_lb60.c b/arch/mips/jz4740/board-qi_lb60.c index 6d7f97552200..60f0767507c6 100644 --- a/arch/mips/jz4740/board-qi_lb60.c +++ b/arch/mips/jz4740/board-qi_lb60.c @@ -313,25 +313,34 @@ static struct jz4740_fb_platform_data qi_lb60_fb_pdata = { .pixclk_falling_edge = 1, }; -struct spi_gpio_platform_data spigpio_platform_data = { - .sck = JZ_GPIO_PORTC(23), - .mosi = JZ_GPIO_PORTC(22), - .miso = -1, +struct spi_gpio_platform_data qi_lb60_spigpio_platform_data = { .num_chipselect = 1, }; -static struct platform_device spigpio_device = { +static struct platform_device qi_lb60_spigpio_device = { .name = "spi_gpio", .id = 1, .dev = { - .platform_data = &spigpio_platform_data, + .platform_data = &qi_lb60_spigpio_platform_data, + }, +}; + +static struct gpiod_lookup_table qi_lb60_spigpio_gpio_table = { + .dev_id = "spi_gpio", + .table = { + GPIO_LOOKUP("GPIOC", 23, + "sck", GPIO_ACTIVE_HIGH), + GPIO_LOOKUP("GPIOC", 22, + "mosi", GPIO_ACTIVE_HIGH), + GPIO_LOOKUP("GPIOC", 21, + "cs", GPIO_ACTIVE_HIGH), + { }, }, }; static struct spi_board_info qi_lb60_spi_board_info[] = { { .modalias = "ili8960", - .controller_data = (void *)JZ_GPIO_PORTC(21), .chip_select = 0, .bus_num = 1, .max_speed_hz = 30 * 1000, @@ -435,7 +444,7 @@ static struct platform_device *jz_platform_devices[] __initdata = { &jz4740_mmc_device, &jz4740_nand_device, &qi_lb60_keypad, - &spigpio_device, + &qi_lb60_spigpio_device, &jz4740_framebuffer_device, &jz4740_pcm_device, &jz4740_i2s_device, @@ -489,6 +498,7 @@ static int __init qi_lb60_init_platform_devices(void) gpiod_add_lookup_table(&qi_lb60_audio_gpio_table); gpiod_add_lookup_table(&qi_lb60_nand_gpio_table); + gpiod_add_lookup_table(&qi_lb60_spigpio_gpio_table); spi_register_board_info(qi_lb60_spi_board_info, ARRAY_SIZE(qi_lb60_spi_board_info)); diff --git a/drivers/misc/eeprom/digsy_mtc_eeprom.c b/drivers/misc/eeprom/digsy_mtc_eeprom.c index 66d9e1baeae5..fbde2516c04f 100644 --- a/drivers/misc/eeprom/digsy_mtc_eeprom.c +++ b/drivers/misc/eeprom/digsy_mtc_eeprom.c @@ -7,9 +7,18 @@ * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. + * + * FIXME: this driver is used on a device-tree probed platform: it + * should be defined as a bit-banged SPI device and probed from the device + * tree and not like this with static grabbing of a few numbered GPIO + * lines at random. + * + * Add proper SPI and EEPROM in arch/powerpc/boot/dts/digsy_mtc.dts + * and delete this driver. */ #include <linux/gpio.h> +#include <linux/gpio/machine.h> #include <linux/init.h> #include <linux/platform_device.h> #include <linux/spi/spi.h> @@ -42,9 +51,6 @@ struct eeprom_93xx46_platform_data digsy_mtc_eeprom_data = { }; static struct spi_gpio_platform_data eeprom_spi_gpio_data = { - .sck = GPIO_EEPROM_CLK, - .mosi = GPIO_EEPROM_DI, - .miso = GPIO_EEPROM_DO, .num_chipselect = 1, }; @@ -56,6 +62,21 @@ static struct platform_device digsy_mtc_eeprom = { }, }; +static struct gpiod_lookup_table eeprom_spi_gpiod_table = { + .dev_id = "spi_gpio", + .table = { + GPIO_LOOKUP("gpio@b00", GPIO_EEPROM_CLK, + "sck", GPIO_ACTIVE_HIGH), + GPIO_LOOKUP("gpio@b00", GPIO_EEPROM_DI, + "mosi", GPIO_ACTIVE_HIGH), + GPIO_LOOKUP("gpio@b00", GPIO_EEPROM_DO, + "miso", GPIO_ACTIVE_HIGH), + GPIO_LOOKUP("gpio@b00", GPIO_EEPROM_CS, + "cs", GPIO_ACTIVE_HIGH), + { }, + }, +}; + static struct spi_board_info digsy_mtc_eeprom_info[] __initdata = { { .modalias = "93xx46", @@ -63,7 +84,6 @@ static struct spi_board_info digsy_mtc_eeprom_info[] __initdata = { .bus_num = EE_SPI_BUS_NUM, .chip_select = 0, .mode = SPI_MODE_0, - .controller_data = (void *)GPIO_EEPROM_CS, .platform_data = &digsy_mtc_eeprom_data, }, }; @@ -78,6 +98,7 @@ static int __init digsy_mtc_eeprom_devices_init(void) pr_err("can't request gpio %d\n", GPIO_EEPROM_OE); return ret; } + gpiod_add_lookup_table(&eeprom_spi_gpiod_table); spi_register_board_info(digsy_mtc_eeprom_info, ARRAY_SIZE(digsy_mtc_eeprom_info)); return platform_device_register(&digsy_mtc_eeprom); diff --git a/drivers/spi/spi-atmel.c b/drivers/spi/spi-atmel.c index 4a11fc0d4136..3f890d162934 100644 --- a/drivers/spi/spi-atmel.c +++ b/drivers/spi/spi-atmel.c @@ -768,14 +768,14 @@ static int atmel_spi_next_xfer_dma_submit(struct spi_master *master, rxdesc = dmaengine_prep_slave_single(rxchan, as->dma_addr_rx_bbuf, xfer->len, - DMA_FROM_DEVICE, + DMA_DEV_TO_MEM, DMA_PREP_INTERRUPT | DMA_CTRL_ACK); } else { rxdesc = dmaengine_prep_slave_sg(rxchan, xfer->rx_sg.sgl, xfer->rx_sg.nents, - DMA_FROM_DEVICE, + DMA_DEV_TO_MEM, DMA_PREP_INTERRUPT | DMA_CTRL_ACK); } @@ -787,14 +787,14 @@ static int atmel_spi_next_xfer_dma_submit(struct spi_master *master, memcpy(as->addr_tx_bbuf, xfer->tx_buf, xfer->len); txdesc = dmaengine_prep_slave_single(txchan, as->dma_addr_tx_bbuf, - xfer->len, DMA_TO_DEVICE, + xfer->len, DMA_MEM_TO_DEV, DMA_PREP_INTERRUPT | DMA_CTRL_ACK); } else { txdesc = dmaengine_prep_slave_sg(txchan, xfer->tx_sg.sgl, xfer->tx_sg.nents, - DMA_TO_DEVICE, + DMA_MEM_TO_DEV, DMA_PREP_INTERRUPT | DMA_CTRL_ACK); } @@ -1512,6 +1512,11 @@ static void atmel_spi_init(struct atmel_spi *as) { spi_writel(as, CR, SPI_BIT(SWRST)); spi_writel(as, CR, SPI_BIT(SWRST)); /* AT91SAM9263 Rev B workaround */ + + /* It is recommended to enable FIFOs first thing after reset */ + if (as->fifo_size) + spi_writel(as, CR, SPI_BIT(FIFOEN)); + if (as->caps.has_wdrbt) { spi_writel(as, MR, SPI_BIT(WDRBT) | SPI_BIT(MODFDIS) | SPI_BIT(MSTR)); @@ -1522,9 +1527,6 @@ static void atmel_spi_init(struct atmel_spi *as) if (as->use_pdc) spi_writel(as, PTCR, SPI_BIT(RXTDIS) | SPI_BIT(TXTDIS)); spi_writel(as, CR, SPI_BIT(SPIEN)); - - if (as->fifo_size) - spi_writel(as, CR, SPI_BIT(FIFOEN)); } static int atmel_spi_probe(struct platform_device *pdev) diff --git a/drivers/spi/spi-bcm-qspi.c b/drivers/spi/spi-bcm-qspi.c index a172ab299e80..1596d35498c5 100644 --- a/drivers/spi/spi-bcm-qspi.c +++ b/drivers/spi/spi-bcm-qspi.c @@ -1247,7 +1247,7 @@ int bcm_qspi_probe(struct platform_device *pdev, qspi->base[MSPI] = devm_ioremap_resource(dev, res); if (IS_ERR(qspi->base[MSPI])) { ret = PTR_ERR(qspi->base[MSPI]); - goto qspi_probe_err; + goto qspi_resource_err; } } else { goto qspi_resource_err; @@ -1258,7 +1258,7 @@ int bcm_qspi_probe(struct platform_device *pdev, qspi->base[BSPI] = devm_ioremap_resource(dev, res); if (IS_ERR(qspi->base[BSPI])) { ret = PTR_ERR(qspi->base[BSPI]); - goto qspi_probe_err; + goto qspi_resource_err; } qspi->bspi_mode = true; } else { diff --git a/drivers/spi/spi-bcm2835aux.c b/drivers/spi/spi-bcm2835aux.c index 7428091d3f5b..1431cb98fe40 100644 --- a/drivers/spi/spi-bcm2835aux.c +++ b/drivers/spi/spi-bcm2835aux.c @@ -321,7 +321,6 @@ static int bcm2835aux_spi_transfer_one(struct spi_master *master, struct bcm2835aux_spi *bs = spi_master_get_devdata(master); unsigned long spi_hz, clk_hz, speed; unsigned long spi_used_hz; - unsigned long long xfer_time_us; /* calculate the registers to handle * @@ -358,20 +357,21 @@ static int bcm2835aux_spi_transfer_one(struct spi_master *master, bs->rx_len = tfr->len; bs->pending = 0; - /* calculate the estimated time in us the transfer runs - * note that there are are 2 idle clocks after each - * chunk getting transferred - in our case the chunk size - * is 3 bytes, so we approximate this by 9 bits/byte + /* Calculate the estimated time in us the transfer runs. Note that + * there are are 2 idle clocks cycles after each chunk getting + * transferred - in our case the chunk size is 3 bytes, so we + * approximate this by 9 cycles/byte. This is used to find the number + * of Hz per byte per polling limit. E.g., we can transfer 1 byte in + * 30 µs per 300,000 Hz of bus clock. */ - xfer_time_us = tfr->len * 9 * 1000000; - do_div(xfer_time_us, spi_used_hz); - +#define HZ_PER_BYTE ((9 * 1000000) / BCM2835_AUX_SPI_POLLING_LIMIT_US) /* run in polling mode for short transfers */ - if (xfer_time_us < BCM2835_AUX_SPI_POLLING_LIMIT_US) + if (tfr->len < spi_used_hz / HZ_PER_BYTE) return bcm2835aux_spi_transfer_one_poll(master, spi, tfr); /* run in interrupt mode for all others */ return bcm2835aux_spi_transfer_one_irq(master, spi, tfr); +#undef HZ_PER_BYTE } static int bcm2835aux_spi_prepare_message(struct spi_master *master, diff --git a/drivers/spi/spi-dw-mid.c b/drivers/spi/spi-dw-mid.c index 837cb8d0bac6..3db905f5f345 100644 --- a/drivers/spi/spi-dw-mid.c +++ b/drivers/spi/spi-dw-mid.c @@ -112,10 +112,10 @@ static irqreturn_t dma_transfer(struct dw_spi *dws) return IRQ_HANDLED; } -static bool mid_spi_can_dma(struct spi_master *master, struct spi_device *spi, - struct spi_transfer *xfer) +static bool mid_spi_can_dma(struct spi_controller *master, + struct spi_device *spi, struct spi_transfer *xfer) { - struct dw_spi *dws = spi_master_get_devdata(master); + struct dw_spi *dws = spi_controller_get_devdata(master); if (!dws->dma_inited) return false; diff --git a/drivers/spi/spi-dw.c b/drivers/spi/spi-dw.c index 211cc7d75bf8..f693bfe95ab9 100644 --- a/drivers/spi/spi-dw.c +++ b/drivers/spi/spi-dw.c @@ -135,7 +135,7 @@ static inline void dw_spi_debugfs_remove(struct dw_spi *dws) static void dw_spi_set_cs(struct spi_device *spi, bool enable) { - struct dw_spi *dws = spi_master_get_devdata(spi->master); + struct dw_spi *dws = spi_controller_get_devdata(spi->controller); struct chip_data *chip = spi_get_ctldata(spi); /* Chip select logic is inverted from spi_set_cs() */ @@ -250,8 +250,8 @@ static irqreturn_t interrupt_transfer(struct dw_spi *dws) static irqreturn_t dw_spi_irq(int irq, void *dev_id) { - struct spi_master *master = dev_id; - struct dw_spi *dws = spi_master_get_devdata(master); + struct spi_controller *master = dev_id; + struct dw_spi *dws = spi_controller_get_devdata(master); u16 irq_status = dw_readl(dws, DW_SPI_ISR) & 0x3f; if (!irq_status) @@ -277,10 +277,10 @@ static int poll_transfer(struct dw_spi *dws) return 0; } -static int dw_spi_transfer_one(struct spi_master *master, +static int dw_spi_transfer_one(struct spi_controller *master, struct spi_device *spi, struct spi_transfer *transfer) { - struct dw_spi *dws = spi_master_get_devdata(master); + struct dw_spi *dws = spi_controller_get_devdata(master); struct chip_data *chip = spi_get_ctldata(spi); u8 imask = 0; u16 txlevel = 0; @@ -383,10 +383,10 @@ static int dw_spi_transfer_one(struct spi_master *master, return 1; } -static void dw_spi_handle_err(struct spi_master *master, +static void dw_spi_handle_err(struct spi_controller *master, struct spi_message *msg) { - struct dw_spi *dws = spi_master_get_devdata(master); + struct dw_spi *dws = spi_controller_get_devdata(master); if (dws->dma |