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scmi: Implement scmi_clknode_recalc_freq method

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Allow the SCMI clock frequency to be queried back, useful for testing
the IRQ path via sysctl access.

Reviewed by:	andrew
Sponsored by:	Arm Ltd
Differential Revision:	https://reviews.freebsd.org/D43038

(cherry picked from commit ecd8cc84dc)
This commit is contained in:
Cristian Marussi 2023-12-10 22:14:21 +00:00 committed by Andrew Turner
parent 519141de7e
commit 4047cec132
1 changed files with 12 additions and 2 deletions
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14
sys/dev/firmware/arm/scmi_clk.c
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@ -56,7 +56,7 @@ struct scmi_clknode_softc {
int clock_id;
};
static int __unused
static int
scmi_clk_get_rate(struct scmi_clk_softc *sc, int clk_id, uint64_t *rate)
{
struct scmi_clk_rate_get_out out;
@ -155,8 +155,18 @@ scmi_clknode_init(struct clknode *clk, device_t dev)
static int
scmi_clknode_recalc_freq(struct clknode *clk, uint64_t *freq)
{
struct scmi_clknode_softc *clk_sc;
struct scmi_clk_softc *sc;
uint64_t rate;
int ret;
return (0);
clk_sc = clknode_get_softc(clk);
sc = device_get_softc(clk_sc->dev);
ret = scmi_clk_get_rate(sc, clk_sc->clock_id, &rate);
if (ret == 0)
*freq = rate;
return (ret);
}
static int