Messages in this thread Patch in this message | | | From | Jonathan Neuschäfer <> | Subject | [PATCH v2 2/7] clocksource: timer-npcm7xx: Enable timer 1 clock before use | Date | Fri, 29 Apr 2022 19:20:25 +0200 |
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In the WPCM450 SoC, the clocks for each timer can be gated individually. To prevent the timer 1 clock from being gated, enable it explicitly.
Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> ---
v2: - Provide context in pr_warn message
v1: - https://lore.kernel.org/lkml/20220422183012.444674-3-j.neuschaefer@gmx.net/ --- drivers/clocksource/timer-npcm7xx.c | 10 ++++++++++ 1 file changed, 10 insertions(+)
diff --git a/drivers/clocksource/timer-npcm7xx.c b/drivers/clocksource/timer-npcm7xx.c index a00520cbb660a..9af30af5f989a 100644 --- a/drivers/clocksource/timer-npcm7xx.c +++ b/drivers/clocksource/timer-npcm7xx.c @@ -188,6 +188,7 @@ static void __init npcm7xx_clocksource_init(void)
static int __init npcm7xx_timer_init(struct device_node *np) { + struct clk *clk; int ret;
ret = timer_of_init(np, &npcm7xx_to); @@ -199,6 +200,15 @@ static int __init npcm7xx_timer_init(struct device_node *np) npcm7xx_to.of_clk.rate = npcm7xx_to.of_clk.rate / (NPCM7XX_Tx_MIN_PRESCALE + 1);
+ /* Enable the clock for timer1, if it exists */ + clk = of_clk_get(np, 1); + if (clk) { + if (!IS_ERR(clk)) + clk_prepare_enable(clk); + else + pr_warn("%pOF: Failed to get clock for timer1: %pe", np, clk); + } + npcm7xx_clocksource_init(); npcm7xx_clockevents_init();
-- 2.35.1
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