kernel/linux.git/drivers/clk/sprd/div.c, branch linux-7.0.y

clk: sprd: div: convert from divider_round_rate() to divider_determine_rate()

2026-01-22T15:48:26+00:00

The divider_round_rate() function is now deprecated, so let's migrate to divider_determine_rate() instead so that this deprecated API can be removed. Note that when the main function itself was migrated to use determine_rate, this was mistakenly converted to: req->rate = divider_round_rate(...) This is invalid in the case when an error occurs since it can set the rate to a negative value. Fixes: deb4740a5ff8 ("clk: sprd: div: convert from round_rate() to determine_rate()") Signed-off-by: Brian Masney

clk: sprd: div: convert from round_rate() to determine_rate()

2025-09-08T13:41:28+00:00

The round_rate() clk ops is deprecated, so migrate this driver from round_rate() to determine_rate() using the Coccinelle semantic patch on the cover letter of this series. Reviewed-by: Chunyan Zhang Signed-off-by: Brian Masney

clk: sprd: Composite driver support offset config

2023-10-24T03:24:02+00:00

The composite interface support the offset configuration, which is used to support mux and div in different registers. Because some sprd projects, the divider has different addresses from mux for one composite clk. Signed-off-by: Zhifeng Tang Reviewed-by: Chunyan Zhang Link: https://lore.kernel.org/r/20230913115211.11512-1-zhifeng.tang@unisoc.com Signed-off-by: Stephen Boyd

clk: sprd: composite: Simplify determine_rate implementation

2023-06-14T19:43:26+00:00

The sprd_div_helper_round_rate() function calls divider_round_rate() which calls divider_round_rate_parent() which calls divider_determine_rate(). This call chain converts back and forth from the rate request structure to make a determine_rate clk_op fit with a round_rate clk_op. Simplify the code here by directly calling divider_determine_rate() instead. This fixes a smatch warning where an unsigned long is compared to less than zero, which is impossible. This makes sprd_div_helper_round_rate() unnecessary as well so simply remove it and fold it into the only caller left. Reported-by: Harshit Mogalapalli Closes: https://lore.kernel.org/r/45fdc54e-7ab6-edd6-d55a-473485608473@oracle.com Cc: Maxime Ripard Fixes: 302d2f836d78 ("clk: sprd: composite: Switch to determine_rate") Signed-off-by: Stephen Boyd Link: https://lore.kernel.org/r/20230613195443.1555132-1-sboyd@kernel.org Reviewed-by: Maxime Ripard

Merge branch 'clk-divider-container' into clk-next

2018-01-27T00:43:14+00:00

* clk-divider-container: clk: divider: fix incorrect usage of container_of Plus fixup sprd/div.c to pass the width too.

clk: sprd: add divider clock support

2017-12-21T23:00:52+00:00

This is a feature that can also be found in sprd composite clocks, provide a bunch of helpers that can be reused later on. Signed-off-by: Chunyan Zhang Signed-off-by: Stephen Boyd