diff options
| author | Boris BREZILLON <b.brezillon@overkiz.com> | 2013-10-02 14:35:20 +0200 |
|---|---|---|
| committer | Daniel Lezcano <daniel.lezcano@linaro.org> | 2013-10-03 16:28:23 +0200 |
| commit | 0e746ec55812a2f8f5ab986aeedd5291e3b6fad4 (patch) | |
| tree | 7faca507c2a8244b40d7b58e9b98bc5c1b35b31f /drivers/clocksource/tcb_clksrc.c | |
| parent | 191124efb4d6e5e47fe073b4b97350873523e88c (diff) | |
clocksource: tcb_clksrc: Replace clk_enable/disable with clk_prepare_enable/disable_unprepare
Replace clk_enable/disable with clk_prepare_enable/disable_unprepare to
avoid common clk framework warnings.
Signed-off-by: Boris BREZILLON <b.brezillon@overkiz.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Diffstat (limited to 'drivers/clocksource/tcb_clksrc.c')
| -rw-r--r-- | drivers/clocksource/tcb_clksrc.c | 26 |
1 files changed, 21 insertions, 5 deletions
diff --git a/drivers/clocksource/tcb_clksrc.c b/drivers/clocksource/tcb_clksrc.c index 8a6187225dd0..048156291fa0 100644 --- a/drivers/clocksource/tcb_clksrc.c +++ b/drivers/clocksource/tcb_clksrc.c @@ -100,7 +100,7 @@ static void tc_mode(enum clock_event_mode m, struct clock_event_device *d) || tcd->clkevt.mode == CLOCK_EVT_MODE_ONESHOT) { __raw_writel(0xff, regs + ATMEL_TC_REG(2, IDR)); __raw_writel(ATMEL_TC_CLKDIS, regs + ATMEL_TC_REG(2, CCR)); - clk_disable(tcd->clk); + clk_disable_unprepare(tcd->clk); } switch (m) { @@ -109,7 +109,7 @@ static void tc_mode(enum clock_event_mode m, struct clock_event_device *d) * of oneshot, we get lower overhead and improved accuracy. */ case CLOCK_EVT_MODE_PERIODIC: - clk_enable(tcd->clk); + clk_prepare_enable(tcd->clk); /* slow clock, count up to RC, then irq and restart */ __raw_writel(timer_clock @@ -126,7 +126,7 @@ static void tc_mode(enum clock_event_mode m, struct clock_event_device *d) break; case CLOCK_EVT_MODE_ONESHOT: - clk_enable(tcd->clk); + clk_prepare_enable(tcd->clk); /* slow clock, count up to RC, then irq and stop */ __raw_writel(timer_clock | ATMEL_TC_CPCSTOP @@ -265,6 +265,7 @@ static int __init tcb_clksrc_init(void) int best_divisor_idx = -1; int clk32k_divisor_idx = -1; int i; + int ret; tc = atmel_tc_alloc(CONFIG_ATMEL_TCB_CLKSRC_BLOCK, clksrc.name); if (!tc) { @@ -275,7 +276,11 @@ static int __init tcb_clksrc_init(void) pdev = tc->pdev; t0_clk = tc->clk[0]; - clk_enable(t0_clk); + ret = clk_prepare_enable(t0_clk); + if (ret) { + pr_debug("can't enable T0 clk\n"); + goto err_free_tc; + } /* How fast will we be counting? Pick something over 5 MHz. */ rate = (u32) clk_get_rate(t0_clk); @@ -313,7 +318,11 @@ static int __init tcb_clksrc_init(void) /* tclib will give us three clocks no matter what the * underlying platform supports. */ - clk_enable(tc->clk[1]); + ret = clk_prepare_enable(tc->clk[1]); + if (ret) { + pr_debug("can't enable T1 clk\n"); + goto err_disable_t0; + } /* setup both channel 0 & 1 */ tcb_setup_dual_chan(tc, best_divisor_idx); } @@ -325,5 +334,12 @@ static int __init tcb_clksrc_init(void) setup_clkevents(tc, clk32k_divisor_idx); return 0; + +err_disable_t0: + clk_disable_unprepare(t0_clk); + +err_free_tc: + atmel_tc_free(tc); + return ret; } arch_initcall(tcb_clksrc_init); |