kernel.git/drivers/clk/actions, branch linux-5.4.y

clk: actions: Terminate clk_div_table with sentinel element

2022-04-15T12:18:19Z

[ Upstream commit d8a441e53e2434b1401e52dfd66b05263e442edc ] In order that the end of a clk_div_table can be detected, it must be terminated with a sentinel element (.div = 0). In owl-s900.s, the { 0, 8 } element was probably meant to be just that, so this patch changes { 0, 8 } to { 0, 0 }. Fixes: d47317ca4ade1 ("clk: actions: Add S700 SoC clock support") Fixes: d85d20053e195 ("clk: actions: Add S900 SoC clock support") Signed-off-by: Jonathan Neuschäfer Reviewed-by: Manivannan Sadhasivam Link: https://lore.kernel.org/r/20220218000922.134857-2-j.neuschaefer@gmx.net Signed-off-by: Stephen Boyd Signed-off-by: Sasha Levin

clk: actions: Fix bisp_factor_table based clocks on Owl S500 SoC

2021-07-14T14:53:34Z

[ Upstream commit a8f1f03caa51aa7a69c671aa87c475034db7d368 ] The following clocks of the Actions Semi Owl S500 SoC have been defined to use a shared clock factor table 'bisp_factor_table[]': DE[1-2], VCE, VDE, BISP, SENSOR[0-1] There are several issues involved in this approach: * 'bisp_factor_table[]' describes the configuration of a regular 8-rates divider, so its usage is redundant. Additionally, judging by the BISP clock context, it is incomplete since it maps only 8 out of 12 possible entries. * The clocks mentioned above are not identical in terms of the available rates, therefore cannot rely on the same factor table. Specifically, BISP and SENSOR* are standard 12-rate dividers so their configuration should rely on a proper clock div table, while VCE and VDE require a factor table that is a actually a subset of the one needed for DE[1-2] clocks. Let's fix this by implementing the following: * Add new factor tables 'de_factor_table' and 'hde_factor_table' to properly handle DE[1-2], VCE and VDE clocks. * Add a common div table 'std12rate_div_table' for BISP and SENSOR[0-1] clocks converted to OWL_COMP_DIV. * Drop the now unused 'bisp_factor_table[]'. Additionally, drop the CLK_IGNORE_UNUSED flag for SENSOR[0-1] since there is no reason to always keep ON those clocks. Fixes: ed6b4795ece4 ("clk: actions: Add clock driver for S500 SoC") Signed-off-by: Cristian Ciocaltea Reviewed-by: Manivannan Sadhasivam Link: https://lore.kernel.org/r/e675820a46cd9930d8d576c6cae61d41c1a8416f.1623354574.git.cristian.ciocaltea@gmail.com Signed-off-by: Stephen Boyd Signed-off-by: Sasha Levin

clk: actions: Fix SD clocks factor table on Owl S500 SoC

2021-07-14T14:53:34Z

[ Upstream commit fe1f71e338d77814da3ef44e9f64d32981a6ccdf ] Drop the unsupported entries in the factor table used for the SD[0-2] clocks definitions on the Actions Semi Owl S500 SoC. Fixes: ed6b4795ece4 ("clk: actions: Add clock driver for S500 SoC") Signed-off-by: Cristian Ciocaltea Reviewed-by: Manivannan Sadhasivam Link: https://lore.kernel.org/r/196c948d708a22b8198c95f064a0f6b6820f9980.1623354574.git.cristian.ciocaltea@gmail.com Signed-off-by: Stephen Boyd Signed-off-by: Sasha Levin

clk: actions: Fix UART clock dividers on Owl S500 SoC

2021-07-14T14:53:34Z

[ Upstream commit 2dca2a619a907579e3e65e7c1789230c2b912e88 ] Use correct divider registers for the Actions Semi Owl S500 SoC's UART clocks. Fixes: ed6b4795ece4 ("clk: actions: Add clock driver for S500 SoC") Signed-off-by: Cristian Ciocaltea Reviewed-by: Manivannan Sadhasivam Link: https://lore.kernel.org/r/4714d05982b19ac5fec2ed74f54be42d8238e392.1623354574.git.cristian.ciocaltea@gmail.com Signed-off-by: Stephen Boyd Signed-off-by: Sasha Levin

clk: actions: Fix h_clk for Actions S500 SoC

2020-08-21T11:05:33Z

[ Upstream commit f47ee279d25fb0e010cae5d6e758e39b40eb6378 ] The h_clk clock in the Actions Semi S500 SoC clock driver has an invalid parent. Replace with the correct one. Fixes: ed6b4795ece4 ("clk: actions: Add clock driver for S500 SoC") Signed-off-by: Cristian Ciocaltea Reviewed-by: Manivannan Sadhasivam Link: https://lore.kernel.org/r/c57e7ebabfa970014f073b92fe95b47d3e5a70b1.1593788312.git.cristian.ciocaltea@gmail.com Signed-off-by: Stephen Boyd Signed-off-by: Sasha Levin

Merge branches 'clk-cdce-regulator', 'clk-bcm', 'clk-evict-parent-cache' and 'clk-actions' into clk-next

2019-09-19T22:31:46Z

- Add regulator support to the cdce925 clk driver - Add support for Raspberry Pi 4 bcm2711 SoCs - Evict parents from parent cache when they're unregistered * clk-cdce-regulator: clk: clk-cdce925: Add regulator support dt-bindings: clock: cdce925: Add regulator documentation * clk-bcm: clk: bcm2835: Mark PLLD_PER as CRITICAL clk: bcm2835: Add BCM2711_CLOCK_EMMC2 support clk: bcm2835: Introduce SoC specific clock registration dt-bindings: bcm2835-cprman: Add bcm2711 support * clk-evict-parent-cache: clk: Evict unregistered clks from parent caches * clk-actions: clk: actions: Fix factor clk struct member access

clk: actions: Fix factor clk struct member access

2019-09-17T19:54:44Z

Since the helper "owl_factor_helper_round_rate" is shared between factor and composite clocks, using the factor clk specific helper function like "hw_to_owl_factor" to access its members will create issues when called from composite clk specific code. Hence, pass the "factor_hw" struct pointer directly instead of fetching it using factor clk specific helpers. This issue has been observed when a composite clock like "sd0_clk" tried to call "owl_factor_helper_round_rate" resulting in pointer dereferencing error. While we are at it, let's rename the "clk_val_best" function to "owl_clk_val_best" since this is an owl SoCs specific helper. Fixes: 4bb78fc9744a ("clk: actions: Add factor clock support") Signed-off-by: Manivannan Sadhasivam Reviewed-by: Stephen Boyd Link: https://lkml.kernel.org/r/20190916154546.24982-2-manivannan.sadhasivam@linaro.org Signed-off-by: Stephen Boyd

clk: actions: Don't reference clk_init_data after registration

2019-08-16T17:19:49Z

A future patch is going to change semantics of clk_register() so that clk_hw::init is guaranteed to be NULL after a clk is registered. Avoid referencing this member here so that we don't run into NULL pointer exceptions. Cc: Manivannan Sadhasivam Signed-off-by: Stephen Boyd Link: https://lkml.kernel.org/r/20190731193517.237136-2-sboyd@kernel.org [sboyd@kernel.org: Move name to after checking for error or NULL hw] Acked-by: Manivannan Sadhasivam

treewide: Add SPDX license identifier - Makefile/Kconfig

2019-05-21T08:50:46Z

Add SPDX license identifiers to all Make/Kconfig files which: - Have no license information of any form These files fall under the project license, GPL v2 only. The resulting SPDX license identifier is: GPL-2.0-only Signed-off-by: Thomas Gleixner Signed-off-by: Greg Kroah-Hartman

clk: actions: Use the correct style for SPDX License Identifier

2019-05-01T20:01:07Z

This patch corrects the SPDX License Identifier style in header files related to Clock Drivers for Actions Semi Socs. For C header files Documentation/process/license-rules.rst mandates C-like comments (opposed to C source files where C++ style should be used) Changes made by using a script provided by Joe Perches here: https://lkml.org/lkml/2019/2/7/46 Suggested-by: Joe Perches Signed-off-by: Nishad Kamdar Signed-off-by: Stephen Boyd