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clk: at91: peripheral: fix return value

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[ Upstream commit 47b13635dabc14f1c2fdcaa5468b47ddadbdd1b5 ]

determine_rate() is expected to return an error code, or 0 on success.
clk_sam9x5_peripheral_determine_rate() has a branch that returns the
parent rate on a certain case. This is the behavior of round_rate(),
so let's go ahead and fix this by setting req->rate.

Fixes: b4c115c761 ("clk: at91: clk-peripheral: add support for changeable parent rate")
Reviewed-by: Alexander Sverdlin <alexander.sverdlin@gmail.com>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: Brian Masney <bmasney@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Brian Masney
2025-08-11 11:17:53 -04:00
committed by Greg Kroah-Hartman
parent afa0b258e0
commit 64419ecff1
1 changed files with 5 additions and 2 deletions
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7
drivers/clk/at91/clk-peripheral.c
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@@ -279,8 +279,11 @@ static int clk_sam9x5_peripheral_determine_rate(struct clk_hw *hw,
long best_diff = LONG_MIN;
u32 shift;
if (periph->id < PERIPHERAL_ID_MIN || !periph->range.max)
return parent_rate;
if (periph->id < PERIPHERAL_ID_MIN || !periph->range.max) {
req->rate = parent_rate;
return 0;
}
/* Fist step: check the available dividers. */
for (shift = 0; shift <= PERIPHERAL_MAX_SHIFT; shift++) {