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| author | Udit Kumar <u-kumar1@ti.com> | 2024-02-13 13:56:40 +0530 |
|---|---|---|
| committer | Stephen Boyd <sboyd@kernel.org> | 2024-02-21 21:59:48 -0800 |
| commit | ad3ac13c6ec318b43e769cc9ffde67528e58e555 (patch) | |
| tree | c223606f4d3800d1ad8f7fcd0a362d65b75de26b /drivers/clk/keystone | |
| parent | 6613476e225e090cc9aad49be7fa504e290dd33d (diff) | |
| download | linux-stable-ad3ac13c6ec318b43e769cc9ffde67528e58e555.tar.gz linux-stable-ad3ac13c6ec318b43e769cc9ffde67528e58e555.tar.bz2 linux-stable-ad3ac13c6ec318b43e769cc9ffde67528e58e555.zip | |
clk: keystone: sci-clk: Adding support for non contiguous clocks
Most of clocks and their parents are defined in contiguous range,
But in few cases, there is gap in clock numbers[0].
Driver assumes clocks to be in contiguous range, and add their clock
ids incrementally.
New firmware started returning error while calling get_freq and is_on
API for non-available clock ids.
In this fix, driver checks and adds only valid clock ids.
[0] https://software-dl.ti.com/tisci/esd/latest/5_soc_doc/j7200/clocks.html
Section Clocks for NAVSS0_CPTS_0 Device, clock id 12-15 not present.
Fixes: 3c13933c6033 ("clk: keystone: sci-clk: add support for dynamically probing clocks")
Signed-off-by: Udit Kumar <u-kumar1@ti.com>
Link: https://lore.kernel.org/r/20240213082640.457316-1-u-kumar1@ti.com
Reviewed-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Diffstat (limited to 'drivers/clk/keystone')
| -rw-r--r-- | drivers/clk/keystone/sci-clk.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/clk/keystone/sci-clk.c b/drivers/clk/keystone/sci-clk.c index 35fe197dd303..eb2ef44869b2 100644 --- a/drivers/clk/keystone/sci-clk.c +++ b/drivers/clk/keystone/sci-clk.c @@ -516,6 +516,7 @@ static int ti_sci_scan_clocks_from_dt(struct sci_clk_provider *provider) struct sci_clk *sci_clk, *prev; int num_clks = 0; int num_parents; + bool state; int clk_id; const char * const clk_names[] = { "clocks", "assigned-clocks", "assigned-clock-parents", NULL @@ -586,6 +587,15 @@ static int ti_sci_scan_clocks_from_dt(struct sci_clk_provider *provider) clk_id = args.args[1] + 1; while (num_parents--) { + /* Check if this clock id is valid */ + ret = provider->ops->is_auto(provider->sci, + sci_clk->dev_id, clk_id, &state); + + if (ret) { + clk_id++; + continue; + } + sci_clk = devm_kzalloc(dev, sizeof(*sci_clk), GFP_KERNEL); |