From 9e62a7668c4085563a907da51a08819c88d04f33 Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Thu, 4 Aug 2016 19:01:20 +0200 Subject: [PATCH] kernel: remove long obsolete gpio spi controller driver patch Signed-off-by: Felix Fietkau --- package/kernel/linux/modules/spi.mk | 16 - target/linux/generic/config-3.18 | 1 - target/linux/generic/config-4.1 | 1 - target/linux/generic/config-4.4 | 1 - .../patches-3.18/862-gpio_spi_driver.patch | 373 ------------------ .../patches-4.1/862-gpio_spi_driver.patch | 373 ------------------ .../patches-4.4/862-gpio_spi_driver.patch | 373 ------------------ ...dd-support-for-Lantiq-SPI-controller.patch | 6 +- 8 files changed, 3 insertions(+), 1141 deletions(-) delete mode 100644 target/linux/generic/patches-3.18/862-gpio_spi_driver.patch delete mode 100644 target/linux/generic/patches-4.1/862-gpio_spi_driver.patch delete mode 100644 target/linux/generic/patches-4.4/862-gpio_spi_driver.patch diff --git a/package/kernel/linux/modules/spi.mk b/package/kernel/linux/modules/spi.mk index b16e26ef04..b2999a84f5 100644 --- a/package/kernel/linux/modules/spi.mk +++ b/package/kernel/linux/modules/spi.mk @@ -43,22 +43,6 @@ endef $(eval $(call KernelPackage,spi-bitbang)) -define KernelPackage/spi-gpio-old - SUBMENU:=$(SPI_MENU) - TITLE:=Old GPIO based bitbanging SPI controller (DEPRECATED) - DEPENDS:=@GPIO_SUPPORT +kmod-spi-bitbang - KCONFIG:=CONFIG_SPI_GPIO_OLD - FILES:=$(LINUX_DIR)/drivers/spi/spi_gpio_old.ko - AUTOLOAD:=$(call AutoProbe,spi_gpio_old) -endef - -define KernelPackage/spi-gpio-old/description - This package contains the GPIO based bitbanging SPI controller driver -endef - -$(eval $(call KernelPackage,spi-gpio-old)) - - define KernelPackage/spi-gpio SUBMENU:=$(SPI_MENU) TITLE:=GPIO-based bitbanging SPI Master diff --git a/target/linux/generic/config-3.18 b/target/linux/generic/config-3.18 index bf481314b6..d862fac0d7 100644 --- a/target/linux/generic/config-3.18 +++ b/target/linux/generic/config-3.18 @@ -3785,7 +3785,6 @@ CONFIG_SND_VERBOSE_PROCFS=y # CONFIG_SPI_FSL_ESPI is not set # CONFIG_SPI_FSL_SPI is not set # CONFIG_SPI_GPIO is not set -# CONFIG_SPI_GPIO_OLD is not set # CONFIG_SPI_LM70_LLP is not set # CONFIG_SPI_MASTER is not set # CONFIG_SPI_MPC52xx is not set diff --git a/target/linux/generic/config-4.1 b/target/linux/generic/config-4.1 index b0f0ac0c1f..6b92dc7031 100644 --- a/target/linux/generic/config-4.1 +++ b/target/linux/generic/config-4.1 @@ -3939,7 +3939,6 @@ CONFIG_SND_VERBOSE_PROCFS=y # CONFIG_SPI_FSL_ESPI is not set # CONFIG_SPI_FSL_SPI is not set # CONFIG_SPI_GPIO is not set -# CONFIG_SPI_GPIO_OLD is not set # CONFIG_SPI_IMG_SPFI is not set # CONFIG_SPI_LM70_LLP is not set # CONFIG_SPI_MASTER is not set diff --git a/target/linux/generic/config-4.4 b/target/linux/generic/config-4.4 index 6988723a94..fee51b042c 100644 --- a/target/linux/generic/config-4.4 +++ b/target/linux/generic/config-4.4 @@ -3943,7 +3943,6 @@ CONFIG_SND_VERBOSE_PROCFS=y # CONFIG_SPI_FSL_ESPI is not set # CONFIG_SPI_FSL_SPI is not set # CONFIG_SPI_GPIO is not set -# CONFIG_SPI_GPIO_OLD is not set # CONFIG_SPI_IMG_SPFI is not set # CONFIG_SPI_LM70_LLP is not set # CONFIG_SPI_MASTER is not set diff --git a/target/linux/generic/patches-3.18/862-gpio_spi_driver.patch b/target/linux/generic/patches-3.18/862-gpio_spi_driver.patch deleted file mode 100644 index 70bf11f8f5..0000000000 --- a/target/linux/generic/patches-3.18/862-gpio_spi_driver.patch +++ /dev/null @@ -1,373 +0,0 @@ -THIS CODE IS DEPRECATED. - -Please use the new mainline SPI-GPIO driver, as of 2.6.29. - ---mb - - - ---- - drivers/spi/Kconfig | 9 + - drivers/spi/Makefile | 1 - drivers/spi/spi_gpio_old.c | 251 +++++++++++++++++++++++++++++++++++++++ - include/linux/spi/spi_gpio_old.h | 73 +++++++++++ - 4 files changed, 334 insertions(+) - ---- /dev/null -+++ b/include/linux/spi/spi_gpio_old.h -@@ -0,0 +1,73 @@ -+/* -+ * spi_gpio interface to platform code -+ * -+ * Copyright (c) 2008 Piotr Skamruk -+ * Copyright (c) 2008 Michael Buesch -+ * -+ * 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. -+ */ -+#ifndef _LINUX_SPI_SPI_GPIO -+#define _LINUX_SPI_SPI_GPIO -+ -+#include -+#include -+ -+ -+/** -+ * struct spi_gpio_platform_data - Data definitions for a SPI-GPIO device. -+ * -+ * This structure holds information about a GPIO-based SPI device. -+ * -+ * @pin_clk: The GPIO pin number of the CLOCK pin. -+ * -+ * @pin_miso: The GPIO pin number of the MISO pin. -+ * -+ * @pin_mosi: The GPIO pin number of the MOSI pin. -+ * -+ * @pin_cs: The GPIO pin number of the CHIPSELECT pin. -+ * -+ * @cs_activelow: If true, the chip is selected when the CS line is low. -+ * -+ * @no_spi_delay: If true, no delay is done in the lowlevel bitbanging. -+ * Note that doing no delay is not standards compliant, -+ * but it might be needed to speed up transfers on some -+ * slow embedded machines. -+ * -+ * @boardinfo_setup: This callback is called after the -+ * SPI master device was registered, but before the -+ * device is registered. -+ * @boardinfo_setup_data: Data argument passed to boardinfo_setup(). -+ */ -+struct spi_gpio_platform_data { -+ unsigned int pin_clk; -+ unsigned int pin_miso; -+ unsigned int pin_mosi; -+ unsigned int pin_cs; -+ bool cs_activelow; -+ bool no_spi_delay; -+ int (*boardinfo_setup)(struct spi_board_info *bi, -+ struct spi_master *master, -+ void *data); -+ void *boardinfo_setup_data; -+}; -+ -+/** -+ * SPI_GPIO_PLATDEV_NAME - The platform device name string. -+ * -+ * The name string that has to be used for platform_device_alloc -+ * when allocating a spi-gpio device. -+ */ -+#define SPI_GPIO_PLATDEV_NAME "spi-gpio" -+ -+/** -+ * spi_gpio_next_id - Get another platform device ID number. -+ * -+ * This returns the next platform device ID number that has to be used -+ * for platform_device_alloc. The ID is opaque and should not be used for -+ * anything else. -+ */ -+int spi_gpio_next_id(void); -+ -+#endif /* _LINUX_SPI_SPI_GPIO */ ---- /dev/null -+++ b/drivers/spi/spi_gpio_old.c -@@ -0,0 +1,251 @@ -+/* -+ * Bitbanging SPI bus driver using GPIO API -+ * -+ * Copyright (c) 2008 Piotr Skamruk -+ * Copyright (c) 2008 Michael Buesch -+ * -+ * based on spi_s3c2410_gpio.c -+ * Copyright (c) 2006 Ben Dooks -+ * Copyright (c) 2006 Simtec Electronics -+ * and on i2c-gpio.c -+ * Copyright (C) 2007 Atmel Corporation -+ * -+ * 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. -+ */ -+ -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+ -+ -+struct spi_gpio { -+ struct spi_bitbang bitbang; -+ struct spi_gpio_platform_data *info; -+ struct platform_device *pdev; -+ struct spi_board_info bi; -+}; -+ -+ -+static inline struct spi_gpio *spidev_to_sg(struct spi_device *dev) -+{ -+ return dev->controller_data; -+} -+ -+static inline void setsck(struct spi_device *dev, int val) -+{ -+ struct spi_gpio *sp = spidev_to_sg(dev); -+ gpio_set_value(sp->info->pin_clk, val ? 1 : 0); -+} -+ -+static inline void setmosi(struct spi_device *dev, int val) -+{ -+ struct spi_gpio *sp = spidev_to_sg(dev); -+ gpio_set_value(sp->info->pin_mosi, val ? 1 : 0); -+} -+ -+static inline u32 getmiso(struct spi_device *dev) -+{ -+ struct spi_gpio *sp = spidev_to_sg(dev); -+ return gpio_get_value(sp->info->pin_miso) ? 1 : 0; -+} -+ -+static inline void do_spidelay(struct spi_device *dev, unsigned nsecs) -+{ -+ struct spi_gpio *sp = spidev_to_sg(dev); -+ -+ if (!sp->info->no_spi_delay) -+ ndelay(nsecs); -+} -+ -+#define spidelay(nsecs) do { \ -+ /* Steal the spi_device pointer from our caller. \ -+ * The bitbang-API should probably get fixed here... */ \ -+ do_spidelay(spi, nsecs); \ -+ } while (0) -+ -+#define EXPAND_BITBANG_TXRX -+#include "spi-bitbang-txrx.h" -+ -+static u32 spi_gpio_txrx_mode0(struct spi_device *spi, -+ unsigned nsecs, u32 word, u8 bits) -+{ -+ return bitbang_txrx_be_cpha0(spi, nsecs, 0, 0, word, bits); -+} -+ -+static u32 spi_gpio_txrx_mode1(struct spi_device *spi, -+ unsigned nsecs, u32 word, u8 bits) -+{ -+ return bitbang_txrx_be_cpha1(spi, nsecs, 0, 0, word, bits); -+} -+ -+static u32 spi_gpio_txrx_mode2(struct spi_device *spi, -+ unsigned nsecs, u32 word, u8 bits) -+{ -+ return bitbang_txrx_be_cpha0(spi, nsecs, 1, 0, word, bits); -+} -+ -+static u32 spi_gpio_txrx_mode3(struct spi_device *spi, -+ unsigned nsecs, u32 word, u8 bits) -+{ -+ return bitbang_txrx_be_cpha1(spi, nsecs, 1, 0, word, bits); -+} -+ -+static void spi_gpio_chipselect(struct spi_device *dev, int on) -+{ -+ struct spi_gpio *sp = spidev_to_sg(dev); -+ -+ if (sp->info->cs_activelow) -+ on = !on; -+ gpio_set_value(sp->info->pin_cs, on ? 1 : 0); -+} -+ -+static int spi_gpio_probe(struct platform_device *pdev) -+{ -+ struct spi_master *master; -+ struct spi_gpio_platform_data *pdata; -+ struct spi_gpio *sp; -+ struct spi_device *spidev; -+ int err; -+ -+ pdata = pdev->dev.platform_data; -+ if (!pdata) -+ return -ENXIO; -+ -+ err = -ENOMEM; -+ master = spi_alloc_master(&pdev->dev, sizeof(struct spi_gpio)); -+ if (!master) -+ goto err_alloc_master; -+ -+ sp = spi_master_get_devdata(master); -+ platform_set_drvdata(pdev, sp); -+ sp->info = pdata; -+ -+ err = gpio_request(pdata->pin_clk, "spi_clock"); -+ if (err) -+ goto err_request_clk; -+ err = gpio_request(pdata->pin_mosi, "spi_mosi"); -+ if (err) -+ goto err_request_mosi; -+ err = gpio_request(pdata->pin_miso, "spi_miso"); -+ if (err) -+ goto err_request_miso; -+ err = gpio_request(pdata->pin_cs, "spi_cs"); -+ if (err) -+ goto err_request_cs; -+ -+ sp->bitbang.master = spi_master_get(master); -+ sp->bitbang.master->bus_num = -1; -+ sp->bitbang.master->num_chipselect = 1; -+ sp->bitbang.chipselect = spi_gpio_chipselect; -+ sp->bitbang.txrx_word[SPI_MODE_0] = spi_gpio_txrx_mode0; -+ sp->bitbang.txrx_word[SPI_MODE_1] = spi_gpio_txrx_mode1; -+ sp->bitbang.txrx_word[SPI_MODE_2] = spi_gpio_txrx_mode2; -+ sp->bitbang.txrx_word[SPI_MODE_3] = spi_gpio_txrx_mode3; -+ -+ gpio_direction_output(pdata->pin_clk, 0); -+ gpio_direction_output(pdata->pin_mosi, 0); -+ gpio_direction_output(pdata->pin_cs, -+ pdata->cs_activelow ? 1 : 0); -+ gpio_direction_input(pdata->pin_miso); -+ -+ err = spi_bitbang_start(&sp->bitbang); -+ if (err) -+ goto err_no_bitbang; -+ err = pdata->boardinfo_setup(&sp->bi, master, -+ pdata->boardinfo_setup_data); -+ if (err) -+ goto err_bi_setup; -+ sp->bi.controller_data = sp; -+ spidev = spi_new_device(master, &sp->bi); -+ if (!spidev) -+ goto err_new_dev; -+ -+ return 0; -+ -+err_new_dev: -+err_bi_setup: -+ spi_bitbang_stop(&sp->bitbang); -+err_no_bitbang: -+ spi_master_put(sp->bitbang.master); -+ gpio_free(pdata->pin_cs); -+err_request_cs: -+ gpio_free(pdata->pin_miso); -+err_request_miso: -+ gpio_free(pdata->pin_mosi); -+err_request_mosi: -+ gpio_free(pdata->pin_clk); -+err_request_clk: -+ kfree(master); -+ -+err_alloc_master: -+ return err; -+} -+ -+static int spi_gpio_remove(struct platform_device *pdev) -+{ -+ struct spi_gpio *sp; -+ struct spi_gpio_platform_data *pdata; -+ -+ pdata = pdev->dev.platform_data; -+ sp = platform_get_drvdata(pdev); -+ -+ gpio_free(pdata->pin_clk); -+ gpio_free(pdata->pin_mosi); -+ gpio_free(pdata->pin_miso); -+ gpio_free(pdata->pin_cs); -+ spi_bitbang_stop(&sp->bitbang); -+ spi_master_put(sp->bitbang.master); -+ -+ return 0; -+} -+ -+static struct platform_driver spi_gpio_driver = { -+ .driver = { -+ .name = SPI_GPIO_PLATDEV_NAME, -+ .owner = THIS_MODULE, -+ }, -+ .probe = spi_gpio_probe, -+ .remove = spi_gpio_remove, -+}; -+ -+int spi_gpio_next_id(void) -+{ -+ static atomic_t counter = ATOMIC_INIT(-1); -+ -+ return atomic_inc_return(&counter); -+} -+EXPORT_SYMBOL(spi_gpio_next_id); -+ -+static int __init spi_gpio_init(void) -+{ -+ int err; -+ -+ err = platform_driver_register(&spi_gpio_driver); -+ if (err) -+ printk(KERN_ERR "spi-gpio: register failed: %d\n", err); -+ -+ return err; -+} -+module_init(spi_gpio_init); -+ -+static void __exit spi_gpio_exit(void) -+{ -+ platform_driver_unregister(&spi_gpio_driver); -+} -+module_exit(spi_gpio_exit); -+ -+MODULE_AUTHOR("Piot Skamruk "); -+MODULE_AUTHOR("Michael Buesch"); -+MODULE_DESCRIPTION("Platform independent GPIO bitbanging SPI driver"); -+MODULE_LICENSE("GPL v2"); ---- a/drivers/spi/Kconfig -+++ b/drivers/spi/Kconfig -@@ -225,6 +225,15 @@ config SPI_GPIO - GPIO operations, you should be able to leverage that for better - speed with a custom version of this driver; see the source code. - -+config SPI_GPIO_OLD -+ tristate "Old GPIO API based bitbanging SPI controller (DEPRECATED)" -+ depends on SPI_MASTER && GPIOLIB -+ select SPI_BITBANG -+ help -+ This code is deprecated. Please use the new mainline SPI-GPIO driver. -+ -+ If unsure, say N. -+ - config SPI_IMX - tristate "Freescale i.MX SPI controllers" - depends on ARCH_MXC || COMPILE_TEST ---- a/drivers/spi/Makefile -+++ b/drivers/spi/Makefile -@@ -40,6 +40,7 @@ obj-$(CONFIG_SPI_FSL_LIB) += spi-fsl-li - obj-$(CONFIG_SPI_FSL_ESPI) += spi-fsl-espi.o - obj-$(CONFIG_SPI_FSL_SPI) += spi-fsl-spi.o - obj-$(CONFIG_SPI_GPIO) += spi-gpio.o -+obj-$(CONFIG_SPI_GPIO_OLD) += spi_gpio_old.o - obj-$(CONFIG_SPI_IMX) += spi-imx.o - obj-$(CONFIG_SPI_LM70_LLP) += spi-lm70llp.o - obj-$(CONFIG_SPI_MPC512x_PSC) += spi-mpc512x-psc.o diff --git a/target/linux/generic/patches-4.1/862-gpio_spi_driver.patch b/target/linux/generic/patches-4.1/862-gpio_spi_driver.patch deleted file mode 100644 index be059383f3..0000000000 --- a/target/linux/generic/patches-4.1/862-gpio_spi_driver.patch +++ /dev/null @@ -1,373 +0,0 @@ -THIS CODE IS DEPRECATED. - -Please use the new mainline SPI-GPIO driver, as of 2.6.29. - ---mb - - - ---- - drivers/spi/Kconfig | 9 + - drivers/spi/Makefile | 1 - drivers/spi/spi_gpio_old.c | 251 +++++++++++++++++++++++++++++++++++++++ - include/linux/spi/spi_gpio_old.h | 73 +++++++++++ - 4 files changed, 334 insertions(+) - ---- /dev/null -+++ b/include/linux/spi/spi_gpio_old.h -@@ -0,0 +1,73 @@ -+/* -+ * spi_gpio interface to platform code -+ * -+ * Copyright (c) 2008 Piotr Skamruk -+ * Copyright (c) 2008 Michael Buesch -+ * -+ * 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. -+ */ -+#ifndef _LINUX_SPI_SPI_GPIO -+#define _LINUX_SPI_SPI_GPIO -+ -+#include -+#include -+ -+ -+/** -+ * struct spi_gpio_platform_data - Data definitions for a SPI-GPIO device. -+ * -+ * This structure holds information about a GPIO-based SPI device. -+ * -+ * @pin_clk: The GPIO pin number of the CLOCK pin. -+ * -+ * @pin_miso: The GPIO pin number of the MISO pin. -+ * -+ * @pin_mosi: The GPIO pin number of the MOSI pin. -+ * -+ * @pin_cs: The GPIO pin number of the CHIPSELECT pin. -+ * -+ * @cs_activelow: If true, the chip is selected when the CS line is low. -+ * -+ * @no_spi_delay: If true, no delay is done in the lowlevel bitbanging. -+ * Note that doing no delay is not standards compliant, -+ * but it might be needed to speed up transfers on some -+ * slow embedded machines. -+ * -+ * @boardinfo_setup: This callback is called after the -+ * SPI master device was registered, but before the -+ * device is registered. -+ * @boardinfo_setup_data: Data argument passed to boardinfo_setup(). -+ */ -+struct spi_gpio_platform_data { -+ unsigned int pin_clk; -+ unsigned int pin_miso; -+ unsigned int pin_mosi; -+ unsigned int pin_cs; -+ bool cs_activelow; -+ bool no_spi_delay; -+ int (*boardinfo_setup)(struct spi_board_info *bi, -+ struct spi_master *master, -+ void *data); -+ void *boardinfo_setup_data; -+}; -+ -+/** -+ * SPI_GPIO_PLATDEV_NAME - The platform device name string. -+ * -+ * The name string that has to be used for platform_device_alloc -+ * when allocating a spi-gpio device. -+ */ -+#define SPI_GPIO_PLATDEV_NAME "spi-gpio" -+ -+/** -+ * spi_gpio_next_id - Get another platform device ID number. -+ * -+ * This returns the next platform device ID number that has to be used -+ * for platform_device_alloc. The ID is opaque and should not be used for -+ * anything else. -+ */ -+int spi_gpio_next_id(void); -+ -+#endif /* _LINUX_SPI_SPI_GPIO */ ---- /dev/null -+++ b/drivers/spi/spi_gpio_old.c -@@ -0,0 +1,251 @@ -+/* -+ * Bitbanging SPI bus driver using GPIO API -+ * -+ * Copyright (c) 2008 Piotr Skamruk -+ * Copyright (c) 2008 Michael Buesch -+ * -+ * based on spi_s3c2410_gpio.c -+ * Copyright (c) 2006 Ben Dooks -+ * Copyright (c) 2006 Simtec Electronics -+ * and on i2c-gpio.c -+ * Copyright (C) 2007 Atmel Corporation -+ * -+ * 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. -+ */ -+ -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+ -+ -+struct spi_gpio { -+ struct spi_bitbang bitbang; -+ struct spi_gpio_platform_data *info; -+ struct platform_device *pdev; -+ struct spi_board_info bi; -+}; -+ -+ -+static inline struct spi_gpio *spidev_to_sg(struct spi_device *dev) -+{ -+ return dev->controller_data; -+} -+ -+static inline void setsck(struct spi_device *dev, int val) -+{ -+ struct spi_gpio *sp = spidev_to_sg(dev); -+ gpio_set_value(sp->info->pin_clk, val ? 1 : 0); -+} -+ -+static inline void setmosi(struct spi_device *dev, int val) -+{ -+ struct spi_gpio *sp = spidev_to_sg(dev); -+ gpio_set_value(sp->info->pin_mosi, val ? 1 : 0); -+} -+ -+static inline u32 getmiso(struct spi_device *dev) -+{ -+ struct spi_gpio *sp = spidev_to_sg(dev); -+ return gpio_get_value(sp->info->pin_miso) ? 1 : 0; -+} -+ -+static inline void do_spidelay(struct spi_device *dev, unsigned nsecs) -+{ -+ struct spi_gpio *sp = spidev_to_sg(dev); -+ -+ if (!sp->info->no_spi_delay) -+ ndelay(nsecs); -+} -+ -+#define spidelay(nsecs) do { \ -+ /* Steal the spi_device pointer from our caller. \ -+ * The bitbang-API should probably get fixed here... */ \ -+ do_spidelay(spi, nsecs); \ -+ } while (0) -+ -+#define EXPAND_BITBANG_TXRX -+#include "spi-bitbang-txrx.h" -+ -+static u32 spi_gpio_txrx_mode0(struct spi_device *spi, -+ unsigned nsecs, u32 word, u8 bits) -+{ -+ return bitbang_txrx_be_cpha0(spi, nsecs, 0, 0, word, bits); -+} -+ -+static u32 spi_gpio_txrx_mode1(struct spi_device *spi, -+ unsigned nsecs, u32 word, u8 bits) -+{ -+ return bitbang_txrx_be_cpha1(spi, nsecs, 0, 0, word, bits); -+} -+ -+static u32 spi_gpio_txrx_mode2(struct spi_device *spi, -+ unsigned nsecs, u32 word, u8 bits) -+{ -+ return bitbang_txrx_be_cpha0(spi, nsecs, 1, 0, word, bits); -+} -+ -+static u32 spi_gpio_txrx_mode3(struct spi_device *spi, -+ unsigned nsecs, u32 word, u8 bits) -+{ -+ return bitbang_txrx_be_cpha1(spi, nsecs, 1, 0, word, bits); -+} -+ -+static void spi_gpio_chipselect(struct spi_device *dev, int on) -+{ -+ struct spi_gpio *sp = spidev_to_sg(dev); -+ -+ if (sp->info->cs_activelow) -+ on = !on; -+ gpio_set_value(sp->info->pin_cs, on ? 1 : 0); -+} -+ -+static int spi_gpio_probe(struct platform_device *pdev) -+{ -+ struct spi_master *master; -+ struct spi_gpio_platform_data *pdata; -+ struct spi_gpio *sp; -+ struct spi_device *spidev; -+ int err; -+ -+ pdata = pdev->dev.platform_data; -+ if (!pdata) -+ return -ENXIO; -+ -+ err = -ENOMEM; -+ master = spi_alloc_master(&pdev->dev, sizeof(struct spi_gpio)); -+ if (!master) -+ goto err_alloc_master; -+ -+ sp = spi_master_get_devdata(master); -+ platform_set_drvdata(pdev, sp); -+ sp->info = pdata; -+ -+ err = gpio_request(pdata->pin_clk, "spi_clock"); -+ if (err) -+ goto err_request_clk; -+ err = gpio_request(pdata->pin_mosi, "spi_mosi"); -+ if (err) -+ goto err_request_mosi; -+ err = gpio_request(pdata->pin_miso, "spi_miso"); -+ if (err) -+ goto err_request_miso; -+ err = gpio_request(pdata->pin_cs, "spi_cs"); -+ if (err) -+ goto err_request_cs; -+ -+ sp->bitbang.master = spi_master_get(master); -+ sp->bitbang.master->bus_num = -1; -+ sp->bitbang.master->num_chipselect = 1; -+ sp->bitbang.chipselect = spi_gpio_chipselect; -+ sp->bitbang.txrx_word[SPI_MODE_0] = spi_gpio_txrx_mode0; -+ sp->bitbang.txrx_word[SPI_MODE_1] = spi_gpio_txrx_mode1; -+ sp->bitbang.txrx_word[SPI_MODE_2] = spi_gpio_txrx_mode2; -+ sp->bitbang.txrx_word[SPI_MODE_3] = spi_gpio_txrx_mode3; -+ -+ gpio_direction_output(pdata->pin_clk, 0); -+ gpio_direction_output(pdata->pin_mosi, 0); -+ gpio_direction_output(pdata->pin_cs, -+ pdata->cs_activelow ? 1 : 0); -+ gpio_direction_input(pdata->pin_miso); -+ -+ err = spi_bitbang_start(&sp->bitbang); -+ if (err) -+ goto err_no_bitbang; -+ err = pdata->boardinfo_setup(&sp->bi, master, -+ pdata->boardinfo_setup_data); -+ if (err) -+ goto err_bi_setup; -+ sp->bi.controller_data = sp; -+ spidev = spi_new_device(master, &sp->bi); -+ if (!spidev) -+ goto err_new_dev; -+ -+ return 0; -+ -+err_new_dev: -+err_bi_setup: -+ spi_bitbang_stop(&sp->bitbang); -+err_no_bitbang: -+ spi_master_put(sp->bitbang.master); -+ gpio_free(pdata->pin_cs); -+err_request_cs: -+ gpio_free(pdata->pin_miso); -+err_request_miso: -+ gpio_free(pdata->pin_mosi); -+err_request_mosi: -+ gpio_free(pdata->pin_clk); -+err_request_clk: -+ kfree(master); -+ -+err_alloc_master: -+ return err; -+} -+ -+static int spi_gpio_remove(struct platform_device *pdev) -+{ -+ struct spi_gpio *sp; -+ struct spi_gpio_platform_data *pdata; -+ -+ pdata = pdev->dev.platform_data; -+ sp = platform_get_drvdata(pdev); -+ -+ gpio_free(pdata->pin_clk); -+ gpio_free(pdata->pin_mosi); -+ gpio_free(pdata->pin_miso); -+ gpio_free(pdata->pin_cs); -+ spi_bitbang_stop(&sp->bitbang); -+ spi_master_put(sp->bitbang.master); -+ -+ return 0; -+} -+ -+static struct platform_driver spi_gpio_driver = { -+ .driver = { -+ .name = SPI_GPIO_PLATDEV_NAME, -+ .owner = THIS_MODULE, -+ }, -+ .probe = spi_gpio_probe, -+ .remove = spi_gpio_remove, -+}; -+ -+int spi_gpio_next_id(void) -+{ -+ static atomic_t counter = ATOMIC_INIT(-1); -+ -+ return atomic_inc_return(&counter); -+} -+EXPORT_SYMBOL(spi_gpio_next_id); -+ -+static int __init spi_gpio_init(void) -+{ -+ int err; -+ -+ err = platform_driver_register(&spi_gpio_driver); -+ if (err) -+ printk(KERN_ERR "spi-gpio: register failed: %d\n", err); -+ -+ return err; -+} -+module_init(spi_gpio_init); -+ -+static void __exit spi_gpio_exit(void) -+{ -+ platform_driver_unregister(&spi_gpio_driver); -+} -+module_exit(spi_gpio_exit); -+ -+MODULE_AUTHOR("Piot Skamruk "); -+MODULE_AUTHOR("Michael Buesch"); -+MODULE_DESCRIPTION("Platform independent GPIO bitbanging SPI driver"); -+MODULE_LICENSE("GPL v2"); ---- a/drivers/spi/Kconfig -+++ b/drivers/spi/Kconfig -@@ -242,6 +242,15 @@ config SPI_IMG_SPFI - This enables support for the SPFI master controller found on - IMG SoCs. - -+config SPI_GPIO_OLD -+ tristate "Old GPIO API based bitbanging SPI controller (DEPRECATED)" -+ depends on SPI_MASTER && GPIOLIB -+ select SPI_BITBANG -+ help -+ This code is deprecated. Please use the new mainline SPI-GPIO driver. -+ -+ If unsure, say N. -+ - config SPI_IMX - tristate "Freescale i.MX SPI controllers" - depends on ARCH_MXC || COMPILE_TEST ---- a/drivers/spi/Makefile -+++ b/drivers/spi/Makefile -@@ -41,6 +41,7 @@ obj-$(CONFIG_SPI_FSL_LIB) += spi-fsl-li - obj-$(CONFIG_SPI_FSL_ESPI) += spi-fsl-espi.o - obj-$(CONFIG_SPI_FSL_SPI) += spi-fsl-spi.o - obj-$(CONFIG_SPI_GPIO) += spi-gpio.o -+obj-$(CONFIG_SPI_GPIO_OLD) += spi_gpio_old.o - obj-$(CONFIG_SPI_IMG_SPFI) += spi-img-spfi.o - obj-$(CONFIG_SPI_IMX) += spi-imx.o - obj-$(CONFIG_SPI_LM70_LLP) += spi-lm70llp.o diff --git a/target/linux/generic/patches-4.4/862-gpio_spi_driver.patch b/target/linux/generic/patches-4.4/862-gpio_spi_driver.patch deleted file mode 100644 index 8f334ec396..0000000000 --- a/target/linux/generic/patches-4.4/862-gpio_spi_driver.patch +++ /dev/null @@ -1,373 +0,0 @@ -THIS CODE IS DEPRECATED. - -Please use the new mainline SPI-GPIO driver, as of 2.6.29. - ---mb - - - ---- - drivers/spi/Kconfig | 9 + - drivers/spi/Makefile | 1 - drivers/spi/spi_gpio_old.c | 251 +++++++++++++++++++++++++++++++++++++++ - include/linux/spi/spi_gpio_old.h | 73 +++++++++++ - 4 files changed, 334 insertions(+) - ---- /dev/null -+++ b/include/linux/spi/spi_gpio_old.h -@@ -0,0 +1,73 @@ -+/* -+ * spi_gpio interface to platform code -+ * -+ * Copyright (c) 2008 Piotr Skamruk -+ * Copyright (c) 2008 Michael Buesch -+ * -+ * 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. -+ */ -+#ifndef _LINUX_SPI_SPI_GPIO -+#define _LINUX_SPI_SPI_GPIO -+ -+#include -+#include -+ -+ -+/** -+ * struct spi_gpio_platform_data - Data definitions for a SPI-GPIO device. -+ * -+ * This structure holds information about a GPIO-based SPI device. -+ * -+ * @pin_clk: The GPIO pin number of the CLOCK pin. -+ * -+ * @pin_miso: The GPIO pin number of the MISO pin. -+ * -+ * @pin_mosi: The GPIO pin number of the MOSI pin. -+ * -+ * @pin_cs: The GPIO pin number of the CHIPSELECT pin. -+ * -+ * @cs_activelow: If true, the chip is selected when the CS line is low. -+ * -+ * @no_spi_delay: If true, no delay is done in the lowlevel bitbanging. -+ * Note that doing no delay is not standards compliant, -+ * but it might be needed to speed up transfers on some -+ * slow embedded machines. -+ * -+ * @boardinfo_setup: This callback is called after the -+ * SPI master device was registered, but before the -+ * device is registered. -+ * @boardinfo_setup_data: Data argument passed to boardinfo_setup(). -+ */ -+struct spi_gpio_platform_data { -+ unsigned int pin_clk; -+ unsigned int pin_miso; -+ unsigned int pin_mosi; -+ unsigned int pin_cs; -+ bool cs_activelow; -+ bool no_spi_delay; -+ int (*boardinfo_setup)(struct spi_board_info *bi, -+ struct spi_master *master, -+ void *data); -+ void *boardinfo_setup_data; -+}; -+ -+/** -+ * SPI_GPIO_PLATDEV_NAME - The platform device name string. -+ * -+ * The name string that has to be used for platform_device_alloc -+ * when allocating a spi-gpio device. -+ */ -+#define SPI_GPIO_PLATDEV_NAME "spi-gpio" -+ -+/** -+ * spi_gpio_next_id - Get another platform device ID number. -+ * -+ * This returns the next platform device ID number that has to be used -+ * for platform_device_alloc. The ID is opaque and should not be used for -+ * anything else. -+ */ -+int spi_gpio_next_id(void); -+ -+#endif /* _LINUX_SPI_SPI_GPIO */ ---- /dev/null -+++ b/drivers/spi/spi_gpio_old.c -@@ -0,0 +1,251 @@ -+/* -+ * Bitbanging SPI bus driver using GPIO API -+ * -+ * Copyright (c) 2008 Piotr Skamruk -+ * Copyright (c) 2008 Michael Buesch -+ * -+ * based on spi_s3c2410_gpio.c -+ * Copyright (c) 2006 Ben Dooks -+ * Copyright (c) 2006 Simtec Electronics -+ * and on i2c-gpio.c -+ * Copyright (C) 2007 Atmel Corporation -+ * -+ * 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. -+ */ -+ -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+ -+ -+struct spi_gpio { -+ struct spi_bitbang bitbang; -+ struct spi_gpio_platform_data *info; -+ struct platform_device *pdev; -+ struct spi_board_info bi; -+}; -+ -+ -+static inline struct spi_gpio *spidev_to_sg(struct spi_device *dev) -+{ -+ return dev->controller_data; -+} -+ -+static inline void setsck(struct spi_device *dev, int val) -+{ -+ struct spi_gpio *sp = spidev_to_sg(dev); -+ gpio_set_value(sp->info->pin_clk, val ? 1 : 0); -+} -+ -+static inline void setmosi(struct spi_device *dev, int val) -+{ -+ struct spi_gpio *sp = spidev_to_sg(dev); -+ gpio_set_value(sp->info->pin_mosi, val ? 1 : 0); -+} -+ -+static inline u32 getmiso(struct spi_device *dev) -+{ -+ struct spi_gpio *sp = spidev_to_sg(dev); -+ return gpio_get_value(sp->info->pin_miso) ? 1 : 0; -+} -+ -+static inline void do_spidelay(struct spi_device *dev, unsigned nsecs) -+{ -+ struct spi_gpio *sp = spidev_to_sg(dev); -+ -+ if (!sp->info->no_spi_delay) -+ ndelay(nsecs); -+} -+ -+#define spidelay(nsecs) do { \ -+ /* Steal the spi_device pointer from our caller. \ -+ * The bitbang-API should probably get fixed here... */ \ -+ do_spidelay(spi, nsecs); \ -+ } while (0) -+ -+#define EXPAND_BITBANG_TXRX -+#include "spi-bitbang-txrx.h" -+ -+static u32 spi_gpio_txrx_mode0(struct spi_device *spi, -+ unsigned nsecs, u32 word, u8 bits) -+{ -+ return bitbang_txrx_be_cpha0(spi, nsecs, 0, 0, word, bits); -+} -+ -+static u32 spi_gpio_txrx_mode1(struct spi_device *spi, -+ unsigned nsecs, u32 word, u8 bits) -+{ -+ return bitbang_txrx_be_cpha1(spi, nsecs, 0, 0, word, bits); -+} -+ -+static u32 spi_gpio_txrx_mode2(struct spi_device *spi, -+ unsigned nsecs, u32 word, u8 bits) -+{ -+ return bitbang_txrx_be_cpha0(spi, nsecs, 1, 0, word, bits); -+} -+ -+static u32 spi_gpio_txrx_mode3(struct spi_device *spi, -+ unsigned nsecs, u32 word, u8 bits) -+{ -+ return bitbang_txrx_be_cpha1(spi, nsecs, 1, 0, word, bits); -+} -+ -+static void spi_gpio_chipselect(struct spi_device *dev, int on) -+{ -+ struct spi_gpio *sp = spidev_to_sg(dev); -+ -+ if (sp->info->cs_activelow) -+ on = !on; -+ gpio_set_value(sp->info->pin_cs, on ? 1 : 0); -+} -+ -+static int spi_gpio_probe(struct platform_device *pdev) -+{ -+ struct spi_master *master; -+ struct spi_gpio_platform_data *pdata; -+ struct spi_gpio *sp; -+ struct spi_device *spidev; -+ int err; -+ -+ pdata = pdev->dev.platform_data; -+ if (!pdata) -+ return -ENXIO; -+ -+ err = -ENOMEM; -+ master = spi_alloc_master(&pdev->dev, sizeof(struct spi_gpio)); -+ if (!master) -+ goto err_alloc_master; -+ -+ sp = spi_master_get_devdata(master); -+ platform_set_drvdata(pdev, sp); -+ sp->info = pdata; -+ -+ err = gpio_request(pdata->pin_clk, "spi_clock"); -+ if (err) -+ goto err_request_clk; -+ err = gpio_request(pdata->pin_mosi, "spi_mosi"); -+ if (err) -+ goto err_request_mosi; -+ err = gpio_request(pdata->pin_miso, "spi_miso"); -+ if (err) -+ goto err_request_miso; -+ err = gpio_request(pdata->pin_cs, "spi_cs"); -+ if (err) -+ goto err_request_cs; -+ -+ sp->bitbang.master = spi_master_get(master); -+ sp->bitbang.master->bus_num = -1; -+ sp->bitbang.master->num_chipselect = 1; -+ sp->bitbang.chipselect = spi_gpio_chipselect; -+ sp->bitbang.txrx_word[SPI_MODE_0] = spi_gpio_txrx_mode0; -+ sp->bitbang.txrx_word[SPI_MODE_1] = spi_gpio_txrx_mode1; -+ sp->bitbang.txrx_word[SPI_MODE_2] = spi_gpio_txrx_mode2; -+ sp->bitbang.txrx_word[SPI_MODE_3] = spi_gpio_txrx_mode3; -+ -+ gpio_direction_output(pdata->pin_clk, 0); -+ gpio_direction_output(pdata->pin_mosi, 0); -+ gpio_direction_output(pdata->pin_cs, -+ pdata->cs_activelow ? 1 : 0); -+ gpio_direction_input(pdata->pin_miso); -+ -+ err = spi_bitbang_start(&sp->bitbang); -+ if (err) -+ goto err_no_bitbang; -+ err = pdata->boardinfo_setup(&sp->bi, master, -+ pdata->boardinfo_setup_data); -+ if (err) -+ goto err_bi_setup; -+ sp->bi.controller_data = sp; -+ spidev = spi_new_device(master, &sp->bi); -+ if (!spidev) -+ goto err_new_dev; -+ -+ return 0; -+ -+err_new_dev: -+err_bi_setup: -+ spi_bitbang_stop(&sp->bitbang); -+err_no_bitbang: -+ spi_master_put(sp->bitbang.master); -+ gpio_free(pdata->pin_cs); -+err_request_cs: -+ gpio_free(pdata->pin_miso); -+err_request_miso: -+ gpio_free(pdata->pin_mosi); -+err_request_mosi: -+ gpio_free(pdata->pin_clk); -+err_request_clk: -+ kfree(master); -+ -+err_alloc_master: -+ return err; -+} -+ -+static int spi_gpio_remove(struct platform_device *pdev) -+{ -+ struct spi_gpio *sp; -+ struct spi_gpio_platform_data *pdata; -+ -+ pdata = pdev->dev.platform_data; -+ sp = platform_get_drvdata(pdev); -+ -+ gpio_free(pdata->pin_clk); -+ gpio_free(pdata->pin_mosi); -+ gpio_free(pdata->pin_miso); -+ gpio_free(pdata->pin_cs); -+ spi_bitbang_stop(&sp->bitbang); -+ spi_master_put(sp->bitbang.master); -+ -+ return 0; -+} -+ -+static struct platform_driver spi_gpio_driver = { -+ .driver = { -+ .name = SPI_GPIO_PLATDEV_NAME, -+ .owner = THIS_MODULE, -+ }, -+ .probe = spi_gpio_probe, -+ .remove = spi_gpio_remove, -+}; -+ -+int spi_gpio_next_id(void) -+{ -+ static atomic_t counter = ATOMIC_INIT(-1); -+ -+ return atomic_inc_return(&counter); -+} -+EXPORT_SYMBOL(spi_gpio_next_id); -+ -+static int __init spi_gpio_init(void) -+{ -+ int err; -+ -+ err = platform_driver_register(&spi_gpio_driver); -+ if (err) -+ printk(KERN_ERR "spi-gpio: register failed: %d\n", err); -+ -+ return err; -+} -+module_init(spi_gpio_init); -+ -+static void __exit spi_gpio_exit(void) -+{ -+ platform_driver_unregister(&spi_gpio_driver); -+} -+module_exit(spi_gpio_exit); -+ -+MODULE_AUTHOR("Piot Skamruk "); -+MODULE_AUTHOR("Michael Buesch"); -+MODULE_DESCRIPTION("Platform independent GPIO bitbanging SPI driver"); -+MODULE_LICENSE("GPL v2"); ---- a/drivers/spi/Kconfig -+++ b/drivers/spi/Kconfig -@@ -254,6 +254,15 @@ config SPI_IMG_SPFI - This enables support for the SPFI master controller found on - IMG SoCs. - -+config SPI_GPIO_OLD -+ tristate "Old GPIO API based bitbanging SPI controller (DEPRECATED)" -+ depends on SPI_MASTER && GPIOLIB -+ select SPI_BITBANG -+ help -+ This code is deprecated. Please use the new mainline SPI-GPIO driver. -+ -+ If unsure, say N. -+ - config SPI_IMX - tristate "Freescale i.MX SPI controllers" - depends on ARCH_MXC || COMPILE_TEST ---- a/drivers/spi/Makefile -+++ b/drivers/spi/Makefile -@@ -42,6 +42,7 @@ obj-$(CONFIG_SPI_FSL_LIB) += spi-fsl-li - obj-$(CONFIG_SPI_FSL_ESPI) += spi-fsl-espi.o - obj-$(CONFIG_SPI_FSL_SPI) += spi-fsl-spi.o - obj-$(CONFIG_SPI_GPIO) += spi-gpio.o -+obj-$(CONFIG_SPI_GPIO_OLD) += spi_gpio_old.o - obj-$(CONFIG_SPI_IMG_SPFI) += spi-img-spfi.o - obj-$(CONFIG_SPI_IMX) += spi-imx.o - obj-$(CONFIG_SPI_LM70_LLP) += spi-lm70llp.o diff --git a/target/linux/lantiq/patches-4.4/0100-spi-add-support-for-Lantiq-SPI-controller.patch b/target/linux/lantiq/patches-4.4/0100-spi-add-support-for-Lantiq-SPI-controller.patch index 3dc60a7032..cc3c851fc7 100644 --- a/target/linux/lantiq/patches-4.4/0100-spi-add-support-for-Lantiq-SPI-controller.patch +++ b/target/linux/lantiq/patches-4.4/0100-spi-add-support-for-Lantiq-SPI-controller.patch @@ -13,7 +13,7 @@ Signed-off-by: Daniel Schwierzeck --- a/drivers/spi/Kconfig +++ b/drivers/spi/Kconfig -@@ -355,6 +355,13 @@ config SPI_MT65XX +@@ -346,6 +346,13 @@ config SPI_MT65XX say Y or M here.If you are not sure, say N. SPI drivers for Mediatek MT65XX and MT81XX series ARM SoCs. @@ -29,8 +29,8 @@ Signed-off-by: Daniel Schwierzeck depends on GPIOLIB || COMPILE_TEST --- a/drivers/spi/Makefile +++ b/drivers/spi/Makefile -@@ -45,6 +45,7 @@ obj-$(CONFIG_SPI_GPIO) += spi-gpio.o - obj-$(CONFIG_SPI_GPIO_OLD) += spi_gpio_old.o +@@ -44,6 +44,7 @@ obj-$(CONFIG_SPI_FSL_SPI) += spi-fsl-sp + obj-$(CONFIG_SPI_GPIO) += spi-gpio.o obj-$(CONFIG_SPI_IMG_SPFI) += spi-img-spfi.o obj-$(CONFIG_SPI_IMX) += spi-imx.o +obj-$(CONFIG_SPI_LANTIQ) += spi-lantiq.o