linux-dev/drivers/clk/rockchip/Makefile, branch master

clk: rockchip: Add clock controller support for RV1126 SoC

2022-09-23T09:15:30Z

Clock & Reset Unit (CRU) in RV1126 support clocks for CRU and CRU_PMU blocks. This patch is trying to add minimal Clock-Architecture Diagram's inferred from [1] authored by Finley Xiao. [1] https://github.com/rockchip-linux/kernel/blob/develop-4.19/drivers/clk/rockchip/clk-rv1126.c Cc: linux-clk@vger.kernel.org Cc: Michael Turquette Cc: Stephen Boyd Signed-off-by: Finley Xiao Signed-off-by: Jagan Teki Link: https://lore.kernel.org/r/20220915163947.1922183-5-jagan@edgeble.ai Signed-off-by: Heiko Stuebner

clk: rockchip: add clock controller for rk3568

2021-03-21T10:10:59Z

Add the clock tree definition for the new rk3568 SoC. Signed-off-by: Elaine Zhang Reviewed-by: Kever Yang Acked-by: Stephen Boyd Link: https://lore.kernel.org/r/20210315085608.16010-5-zhangqing@rock-chips.com Signed-off-by: Heiko Stuebner

clk: rockchip: fix the clk config to support module build

2020-09-22T13:16:38Z

use CONFIG_COMMON_CLK_ROCKCHIP for Rk common clk drivers. use CONFIG_CLK_RKXX for Rk soc clk driver. Mark CONFIG_CLK_RK3399 to "tristate", to support building Rk3399 SoC clock driver as module. Signed-off-by: Elaine Zhang Reviewed-by: Kever Yang Reviewed-by: Stephen Boyd Link: https://lore.kernel.org/r/20200914022304.23908-1-zhangqing@rock-chips.com Signed-off-by: Heiko Stuebner

clk: rockchip: Add clock controller for the rk3308

2019-09-05T10:43:39Z

Add the clock tree definition for the new RK3308 SoC. Signed-off-by: Finley Xiao Signed-off-by: Heiko Stuebner

clk: rockchip: add clock controller for px30

2018-07-06T17:17:57Z

Add the clock tree definition for the new px30 SoC. Signed-off-by: Elaine Zhang Signed-off-by: Heiko Stuebner

clk: rockchip: add support for half divider

2018-07-06T17:17:57Z

The new Rockchip socs have optional half divider: The formula is shown as: freq_out = 2*freq_in / (2*div + 3) Is this the same for all of new SoCs. So we use "branch_half_divider" + "COMPOSITE_NOMUX_HALFDIV \ DIV_HALF \ COMPOSITE_HALFDIV \ CMPOSITE_NOGATE_HALFDIV" to hook that special divider clock-type into our clock-tree. Signed-off-by: Elaine Zhang Signed-off-by: Heiko Stuebner

clk: rockchip: remove deprecated gate-clk code and dt-binding

2018-05-23T11:19:06Z

Initially we tried modeling clocks via the devicetree before switching to clocks declared in the clock drivers and only exporting specific ids to the devicetree. As the old code was in the kernel for 1-2 releases when the new mode of operation was added we kept it for backwards compatibility. That deprecation notice is in the binding since july 2014, so nearly 4 years now and I think it's time to drop the old cruft. Especially as at the time using the mainline kernel on Rockchip devices was not really possible, except for experiments on the really old socs of the rk3066 + rk3188 line, so there shouldn't be any devicetrees still around that rely on that code. Signed-off-by: Heiko Stuebner Acked-by: Stephen Boyd Reviewed-by: Rob Herring

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02T10:10:55Z

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 Reviewed-by: Philippe Ombredanne Reviewed-by: Thomas Gleixner Signed-off-by: Greg Kroah-Hartman

clk: rockchip: add clock controller for rk3128

2017-06-02T12:49:35Z

Add the clock tree definition for the new rk3128 SoC. And it also applies to the RK3126 SoC. Signed-off-by: Elaine Zhang Signed-off-by: Heiko Stuebner

clk: rockchip: rename RK1108 to RV1108

2017-03-22T17:03:04Z

Rockchip finally named the SOC as RV1108, so change it. Signed-off-by: Andy Yan [include rename in rk1108.dtsi to prevent compile errors] Signed-off-by: Heiko Stuebner