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b24413180f
Many source files in the tree are missing licensing information, which makes it harder for compliance tools to determine the correct license. By default all files without license information are under the default license of the kernel, which is GPL version 2. Update the files which contain no license information with the 'GPL-2.0' SPDX license identifier. The SPDX identifier is a legally binding shorthand, which can be used instead of the full boiler plate text. This patch is based on work done by Thomas Gleixner and Kate Stewart and Philippe Ombredanne. How this work was done: Patches were generated and checked against linux-4.14-rc6 for a subset of the use cases: - file had no licensing information it it. - file was a */uapi/* one with no licensing information in it, - file was a */uapi/* one with existing licensing information, Further patches will be generated in subsequent months to fix up cases where non-standard license headers were used, and references to license had to be inferred by heuristics based on keywords. The analysis to determine which SPDX License Identifier to be applied to a file was done in a spreadsheet of side by side results from of the output of two independent scanners (ScanCode & Windriver) producing SPDX tag:value files created by Philippe Ombredanne. Philippe prepared the base worksheet, and did an initial spot review of a few 1000 files. The 4.13 kernel was the starting point of the analysis with 60,537 files assessed. Kate Stewart did a file by file comparison of the scanner results in the spreadsheet to determine which SPDX license identifier(s) to be applied to the file. She confirmed any determination that was not immediately clear with lawyers working with the Linux Foundation. Criteria used to select files for SPDX license identifier tagging was: - Files considered eligible had to be source code files. - Make and config files were included as candidates if they contained >5 lines of source - File already had some variant of a license header in it (even if <5 lines). All documentation files were explicitly excluded. The following heuristics were used to determine which SPDX license identifiers to apply. - when both scanners couldn't find any license traces, file was considered to have no license information in it, and the top level COPYING file license applied. For non */uapi/* files that summary was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 11139 and resulted in the first patch in this series. If that file was a */uapi/* path one, it was "GPL-2.0 WITH Linux-syscall-note" otherwise it was "GPL-2.0". Results of that was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 WITH Linux-syscall-note 930 and resulted in the second patch in this series. - if a file had some form of licensing information in it, and was one of the */uapi/* ones, it was denoted with the Linux-syscall-note if any GPL family license was found in the file or had no licensing in it (per prior point). Results summary: SPDX license identifier # files ---------------------------------------------------|------ GPL-2.0 WITH Linux-syscall-note 270 GPL-2.0+ WITH Linux-syscall-note 169 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17 LGPL-2.1+ WITH Linux-syscall-note 15 GPL-1.0+ WITH Linux-syscall-note 14 ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5 LGPL-2.0+ WITH Linux-syscall-note 4 LGPL-2.1 WITH Linux-syscall-note 3 ((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3 ((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1 and that resulted in the third patch in this series. - when the two scanners agreed on the detected license(s), that became the concluded license(s). - when there was disagreement between the two scanners (one detected a license but the other didn't, or they both detected different licenses) a manual inspection of the file occurred. - In most cases a manual inspection of the information in the file resulted in a clear resolution of the license that should apply (and which scanner probably needed to revisit its heuristics). - When it was not immediately clear, the license identifier was confirmed with lawyers working with the Linux Foundation. - If there was any question as to the appropriate license identifier, the file was flagged for further research and to be revisited later in time. In total, over 70 hours of logged manual review was done on the spreadsheet to determine the SPDX license identifiers to apply to the source files by Kate, Philippe, Thomas and, in some cases, confirmation by lawyers working with the Linux Foundation. Kate also obtained a third independent scan of the 4.13 code base from FOSSology, and compared selected files where the other two scanners disagreed against that SPDX file, to see if there was new insights. The Windriver scanner is based on an older version of FOSSology in part, so they are related. Thomas did random spot checks in about 500 files from the spreadsheets for the uapi headers and agreed with SPDX license identifier in the files he inspected. For the non-uapi files Thomas did random spot checks in about 15000 files. In initial set of patches against 4.14-rc6, 3 files were found to have copy/paste license identifier errors, and have been fixed to reflect the correct identifier. Additionally Philippe spent 10 hours this week doing a detailed manual inspection and review of the 12,461 patched files from the initial patch version early this week with: - a full scancode scan run, collecting the matched texts, detected license ids and scores - reviewing anything where there was a license detected (about 500+ files) to ensure that the applied SPDX license was correct - reviewing anything where there was no detection but the patch license was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied SPDX license was correct This produced a worksheet with 20 files needing minor correction. This worksheet was then exported into 3 different .csv files for the different types of files to be modified. These .csv files were then reviewed by Greg. Thomas wrote a script to parse the csv files and add the proper SPDX tag to the file, in the format that the file expected. This script was further refined by Greg based on the output to detect more types of files automatically and to distinguish between header and source .c files (which need different comment types.) Finally Greg ran the script using the .csv files to generate the patches. Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
167 lines
4.6 KiB
C
167 lines
4.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef MFD_TMIO_H
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#define MFD_TMIO_H
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#include <linux/device.h>
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#include <linux/fb.h>
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#include <linux/io.h>
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#include <linux/jiffies.h>
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#include <linux/mmc/card.h>
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#include <linux/platform_device.h>
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#include <linux/pm_runtime.h>
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#define tmio_ioread8(addr) readb(addr)
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#define tmio_ioread16(addr) readw(addr)
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#define tmio_ioread16_rep(r, b, l) readsw(r, b, l)
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#define tmio_ioread32(addr) \
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(((u32)readw((addr))) | (((u32)readw((addr) + 2)) << 16))
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#define tmio_iowrite8(val, addr) writeb((val), (addr))
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#define tmio_iowrite16(val, addr) writew((val), (addr))
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#define tmio_iowrite16_rep(r, b, l) writesw(r, b, l)
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#define tmio_iowrite32(val, addr) \
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do { \
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writew((val), (addr)); \
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writew((val) >> 16, (addr) + 2); \
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} while (0)
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#define CNF_CMD 0x04
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#define CNF_CTL_BASE 0x10
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#define CNF_INT_PIN 0x3d
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#define CNF_STOP_CLK_CTL 0x40
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#define CNF_GCLK_CTL 0x41
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#define CNF_SD_CLK_MODE 0x42
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#define CNF_PIN_STATUS 0x44
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#define CNF_PWR_CTL_1 0x48
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#define CNF_PWR_CTL_2 0x49
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#define CNF_PWR_CTL_3 0x4a
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#define CNF_CARD_DETECT_MODE 0x4c
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#define CNF_SD_SLOT 0x50
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#define CNF_EXT_GCLK_CTL_1 0xf0
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#define CNF_EXT_GCLK_CTL_2 0xf1
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#define CNF_EXT_GCLK_CTL_3 0xf9
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#define CNF_SD_LED_EN_1 0xfa
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#define CNF_SD_LED_EN_2 0xfe
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#define SDCREN 0x2 /* Enable access to MMC CTL regs. (flag in COMMAND_REG)*/
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#define sd_config_write8(base, shift, reg, val) \
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tmio_iowrite8((val), (base) + ((reg) << (shift)))
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#define sd_config_write16(base, shift, reg, val) \
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tmio_iowrite16((val), (base) + ((reg) << (shift)))
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#define sd_config_write32(base, shift, reg, val) \
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do { \
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tmio_iowrite16((val), (base) + ((reg) << (shift))); \
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tmio_iowrite16((val) >> 16, (base) + ((reg + 2) << (shift))); \
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} while (0)
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/* tmio MMC platform flags */
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#define TMIO_MMC_WRPROTECT_DISABLE BIT(0)
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/*
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* Some controllers can support a 2-byte block size when the bus width
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* is configured in 4-bit mode.
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*/
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#define TMIO_MMC_BLKSZ_2BYTES BIT(1)
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/*
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* Some controllers can support SDIO IRQ signalling.
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*/
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#define TMIO_MMC_SDIO_IRQ BIT(2)
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/* Some features are only available or tested on R-Car Gen2 or later */
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#define TMIO_MMC_MIN_RCAR2 BIT(3)
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/*
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* Some controllers require waiting for the SD bus to become
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* idle before writing to some registers.
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*/
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#define TMIO_MMC_HAS_IDLE_WAIT BIT(4)
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/*
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* A GPIO is used for card hotplug detection. We need an extra flag for this,
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* because 0 is a valid GPIO number too, and requiring users to specify
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* cd_gpio < 0 to disable GPIO hotplug would break backwards compatibility.
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*/
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#define TMIO_MMC_USE_GPIO_CD BIT(5)
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/*
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* Some controllers doesn't have over 0x100 register.
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* it is used to checking accessibility of
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* CTL_SD_CARD_CLK_CTL / CTL_CLK_AND_WAIT_CTL
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*/
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#define TMIO_MMC_HAVE_HIGH_REG BIT(6)
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/*
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* Some controllers have CMD12 automatically
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* issue/non-issue register
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*/
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#define TMIO_MMC_HAVE_CMD12_CTRL BIT(7)
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/* Controller has some SDIO status bits which must be 1 */
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#define TMIO_MMC_SDIO_STATUS_SETBITS BIT(8)
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/*
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* Some controllers have a 32-bit wide data port register
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*/
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#define TMIO_MMC_32BIT_DATA_PORT BIT(9)
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/*
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* Some controllers allows to set SDx actual clock
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*/
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#define TMIO_MMC_CLK_ACTUAL BIT(10)
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/* Some controllers have a CBSY bit */
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#define TMIO_MMC_HAVE_CBSY BIT(11)
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int tmio_core_mmc_enable(void __iomem *cnf, int shift, unsigned long base);
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int tmio_core_mmc_resume(void __iomem *cnf, int shift, unsigned long base);
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void tmio_core_mmc_pwr(void __iomem *cnf, int shift, int state);
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void tmio_core_mmc_clk_div(void __iomem *cnf, int shift, int state);
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struct dma_chan;
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/*
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* data for the MMC controller
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*/
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struct tmio_mmc_data {
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void *chan_priv_tx;
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void *chan_priv_rx;
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unsigned int hclk;
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unsigned long capabilities;
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unsigned long capabilities2;
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unsigned long flags;
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u32 ocr_mask; /* available voltages */
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unsigned int cd_gpio;
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int alignment_shift;
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dma_addr_t dma_rx_offset;
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unsigned int max_blk_count;
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unsigned short max_segs;
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void (*set_pwr)(struct platform_device *host, int state);
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void (*set_clk_div)(struct platform_device *host, int state);
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};
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/*
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* data for the NAND controller
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*/
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struct tmio_nand_data {
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struct nand_bbt_descr *badblock_pattern;
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struct mtd_partition *partition;
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unsigned int num_partitions;
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const char *const *part_parsers;
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};
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#define FBIO_TMIO_ACC_WRITE 0x7C639300
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#define FBIO_TMIO_ACC_SYNC 0x7C639301
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struct tmio_fb_data {
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int (*lcd_set_power)(struct platform_device *fb_dev,
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bool on);
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int (*lcd_mode)(struct platform_device *fb_dev,
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const struct fb_videomode *mode);
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int num_modes;
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struct fb_videomode *modes;
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/* in mm: size of screen */
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int height;
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int width;
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};
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#endif
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