kernel/drivers/clk/rockchip/clk.c, branch linux-6.9.y

clk: rockchip: rk3588: fix CLK_NR_CLKS usage

2024-02-27T16:04:58Z

CLK_NR_CLKS is not part of the DT bindings and needs to be removed from it, just like it recently happened for other platforms. This takes care of it by introducing a new function identifying the maximum used clock ID at runtime. Signed-off-by: Sebastian Reichel Link: https://lore.kernel.org/r/20240126182919.48402-2-sebastian.reichel@collabora.com Signed-off-by: Heiko Stuebner

clk: rockchip: Remove values for mmask and nmask in struct clk_fractional_divider

2023-04-05T19:09:27Z

Now that fractional_divider clk computes mmask and nmask when needed, there is no more need to provide them explicitly anymore. Signed-off-by: Christophe JAILLET Link: https://lore.kernel.org/r/58e1950566e40e2fbb31004baee57a164ca6a390.1680423909.git.christophe.jaillet@wanadoo.fr Reviewed-by: Heiko Stuebner Signed-off-by: Stephen Boyd

Merge branches 'clk-spear', 'clk-fract', 'clk-rockchip' and 'clk-imx' into clk-next

2022-12-12T19:13:08Z

- Debugfs support for fractional divider clk * clk-spear: clk: spear: Fix SSP clock definition on SPEAr600 clk: spear: Fix CLCD clock definition on SPEAr600 * clk-fract: clk: fractional-divider: Regroup inclusions clk: fractional-divider: Show numerator and denominator in debugfs clk: fractional-divider: Split out clk_fd_get_div() helper * clk-rockchip: clk: rockchip: Fix memory leak in rockchip_clk_register_pll() clk: rockchip: add clock controller for the RK3588 clk: rockchip: add lookup table support clk: rockchip: simplify rockchip_clk_add_lookup clk: rockchip: allow additional mux options for cpu-clock frequency changes clk: rockchip: add pll type for RK3588 clk: rockchip: add register offset of the cores select parent dt-bindings: clock: add rk3588 cru bindings dt-bindings: reset: add rk3588 reset definitions dt-bindings: clock: add rk3588 clock definitions clk: rockchip: use proper crypto0 name on rk3399 * clk-imx: clk: imx: rename imx_obtain_fixed_clk_hw() to imx_get_clk_hw_by_name() clk: imx8mn: fix imx8mn_enet_phy_sels clocks list clk: imx8mn: fix imx8mn_sai2_sels clocks list clk: imx: rename video_pll1 to video_pll clk: imx: replace osc_hdmi with dummy clk: imx8mn: rename vpu_pll to m7_alt_pll clk: imx: imxrt1050: add IMXRT1050_CLK_LCDIF_PIX clock gate clk: imx: imxrt1050: fix IMXRT1050_CLK_LCDIF_APB offsets clk: imx8mp: Add audio shared gate dt-bindings: clock: imx8mp: Add ids for the audio shared gate clk: imx: pll14xx: Add 320 MHz and 640 MHz entries for PLL146x clk: imx93: keep sys ctr clock always on clk: imx: keep hsio bus clock always on clk: imx93: drop tpm1/3, lpit1/2 clk dt-bindings: clock: imx93: drop TPM1/3 LPIT1/2 entry clk: imx93: correct enet clock clk: imx93: unmap anatop base in error handling path clk: imx: imx8mp: add shared clk gate for usb suspend clk dt-bindings: clocks: imx8mp: Add ID for usb suspend clock clk: imx93: correct the flexspi1 clock setting

clk: Remove a useless include

2022-11-23T01:52:07Z

is not needed for these drivers. Remove the corresponding #include. Signed-off-by: Christophe JAILLET Link: https://lore.kernel.org/r/12dd5cb49efa7714f8e0389e4c7b3bc829e8a90e.1668289299.git.christophe.jaillet@wanadoo.fr Acked-by: Heiko Stuebner Acked-by: Jerome Brunet Reviewed-by: Luca Ceresoli Signed-off-by: Stephen Boyd

clk: rockchip: simplify rockchip_clk_add_lookup

2022-11-14T14:35:07Z

rockchip_clk_add_lookup is only called from within the file, so it can be made static. The additional checks are removed with the following reasoning: 1. The data structure is initialized by rockchip_clk_init(), which is called by all rockchip platforms before the clocks are registered. Not doing so would result in an incomplete clock tree at the moment, which is a fatal error. In other parts of the kernel these kind of checks are usually omitted, so this was done here. The alternative is adding a pr_err to inform the kernel programmer adding a new platform about his incorrect code. Apart from that we are also not checking if the clock id is within the array boundings. 2. While not used so far by any rockchip platform, 0 is a valid clock identifier. To align rockchip closer to other ARM platforms we will start using it with rk3588. Signed-off-by: Sebastian Reichel Link: https://lore.kernel.org/r/20221018151407.63395-8-sebastian.reichel@collabora.com Signed-off-by: Heiko Stuebner

clk: rockchip: Add MUXTBL variant

2022-09-13T10:09:14Z

Add a clock branch consisting of a mux with non-standard select values. The parent in Mux table is sorted by priority. Use clk_register_mux_table() to register such a mux-clock. Cc: linux-clk@vger.kernel.org Cc: Michael Turquette Cc: Stephen Boyd Signed-off-by: Elaine Zhang Signed-off-by: Jagan Teki Link: https://lore.kernel.org/r/20220907160207.3845791-3-jagan@edgeble.ai Signed-off-by: Heiko Stuebner

clk: rockchip: re-add rational best approximation algorithm to the fractional divider

2022-02-23T23:07:16Z

In commit 4e7cf74fa3b2 ("clk: fractional-divider: Export approximation algorithm to the CCF users"), the code handling the rational best approximation algorithm was replaced by a call to the core clk_fractional_divider_general_approximation function which did the same thing back then. However, in commit 82f53f9ee577 ("clk: fractional-divider: Introduce POWER_OF_TWO_PS flag"), this common code was made conditional on CLK_FRAC_DIVIDER_POWER_OF_TWO_PS flag which was not added back to the rockchip clock driver. This broke the ltk050h3146w-a2 MIPI DSI display present on a PX30-based downstream board. Let's add the flag to the fractional divider flags so that the original and intended behavior is brought back to the rockchip clock drivers. Fixes: 82f53f9ee577 ("clk: fractional-divider: Introduce POWER_OF_TWO_PS flag") Cc: stable@vger.kernel.org Cc: Quentin Schulz Signed-off-by: Quentin Schulz Link: https://lore.kernel.org/r/20220131163224.708002-1-quentin.schulz@theobroma-systems.com Signed-off-by: Heiko Stuebner

clk: fractional-divider: Export approximation algorithm to the CCF users

2021-08-12T19:41:47Z

At least one user currently duplicates some functions that are provided by fractional divider module. Let's export approximation algorithm and replace the open-coded variant. As a bonus the exported function will get better documentation in place. Signed-off-by: Andy Shevchenko Tested-by: Heiko Stuebner Acked-by: Heiko Stuebner Link: https://lore.kernel.org/r/20210812170025.67074-1-andriy.shevchenko@linux.intel.com [sboyd@kernel.org: Add header guard because why not] Signed-off-by: Stephen Boyd

clk: rockchip: Demote non-conformant kernel-doc headers in main clock code

2021-01-25T23:24:04Z

Fixes the following W=1 kernel build warning(s): drivers/clk/rockchip/clk.c:45: warning: Function parameter or member 'name' not described in 'rockchip_clk_register_branch' drivers/clk/rockchip/clk.c:45: warning: Function parameter or member 'parent_names' not described in 'rockchip_clk_register_branch' drivers/clk/rockchip/clk.c:45: warning: Function parameter or member 'num_parents' not described in 'rockchip_clk_register_branch' drivers/clk/rockchip/clk.c:45: warning: Function parameter or member 'base' not described in 'rockchip_clk_register_branch' drivers/clk/rockchip/clk.c:45: warning: Function parameter or member 'muxdiv_offset' not described in 'rockchip_clk_register_branch' drivers/clk/rockchip/clk.c:45: warning: Function parameter or member 'mux_shift' not described in 'rockchip_clk_register_branch' drivers/clk/rockchip/clk.c:45: warning: Function parameter or member 'mux_width' not described in 'rockchip_clk_register_branch' drivers/clk/rockchip/clk.c:45: warning: Function parameter or member 'mux_flags' not described in 'rockchip_clk_register_branch' drivers/clk/rockchip/clk.c:45: warning: Function parameter or member 'div_offset' not described in 'rockchip_clk_register_branch' drivers/clk/rockchip/clk.c:45: warning: Function parameter or member 'div_shift' not described in 'rockchip_clk_register_branch' drivers/clk/rockchip/clk.c:45: warning: Function parameter or member 'div_width' not described in 'rockchip_clk_register_branch' drivers/clk/rockchip/clk.c:45: warning: Function parameter or member 'div_flags' not described in 'rockchip_clk_register_branch' drivers/clk/rockchip/clk.c:45: warning: Function parameter or member 'div_table' not described in 'rockchip_clk_register_branch' drivers/clk/rockchip/clk.c:45: warning: Function parameter or member 'gate_offset' not described in 'rockchip_clk_register_branch' drivers/clk/rockchip/clk.c:45: warning: Function parameter or member 'gate_shift' not described in 'rockchip_clk_register_branch' drivers/clk/rockchip/clk.c:45: warning: Function parameter or member 'gate_flags' not described in 'rockchip_clk_register_branch' drivers/clk/rockchip/clk.c:45: warning: Function parameter or member 'flags' not described in 'rockchip_clk_register_branch' drivers/clk/rockchip/clk.c:45: warning: Function parameter or member 'lock' not described in 'rockchip_clk_register_branch' drivers/clk/rockchip/clk.c:180: warning: Function parameter or member 'hw' not described in 'rockchip_fractional_approximation' drivers/clk/rockchip/clk.c:180: warning: Function parameter or member 'rate' not described in 'rockchip_fractional_approximation' drivers/clk/rockchip/clk.c:180: warning: Function parameter or member 'parent_rate' not described in 'rockchip_fractional_approximation' drivers/clk/rockchip/clk.c:180: warning: Function parameter or member 'm' not described in 'rockchip_fractional_approximation' drivers/clk/rockchip/clk.c:180: warning: Function parameter or member 'n' not described in 'rockchip_fractional_approximation' Cc: Michael Turquette Cc: Stephen Boyd Cc: Heiko Stuebner Cc: Xing Zheng Cc: Thomas Abraham Cc: linux-clk@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-rockchip@lists.infradead.org Signed-off-by: Lee Jones Link: https://lore.kernel.org/r/20210120093040.1719407-2-lee.jones@linaro.org Signed-off-by: Heiko Stuebner

clk: rockchip: Remove redundant null check before clk_prepare_enable

2020-11-29T19:02:58Z

Because clk_prepare_enable() already checked NULL clock parameter, so the additional check is unnecessary, just remove it. Signed-off-by: Xu Wang Acked-by: Stephen Boyd Link: https://lore.kernel.org/r/20201127090551.50254-1-vulab@iscas.ac.cn Signed-off-by: Heiko Stuebner