Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755502AbbHJKGh (ORCPT ); Mon, 10 Aug 2015 06:06:37 -0400 Received: from mail-wi0-f171.google.com ([209.85.212.171]:35064 "EHLO mail-wi0-f171.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933236AbbHJJyP (ORCPT ); Mon, 10 Aug 2015 05:54:15 -0400 From: Daniel Lezcano To: mingo@kernel.org Cc: tglx@linutronix.de, linux-kernel@vger.kernel.org, Viresh Kumar , Thierry Reding , Stephen Warren , Thierry Reding , Alexandre Courbot , linux-tegra@vger.kernel.org (open list:TEGRA ARCHITECTUR...) Subject: [PATCH 33/74] clockevents/drivers/tegra20: Migrate to new 'set-state' interface Date: Mon, 10 Aug 2015 11:51:50 +0200 Message-Id: <1439200352-26767-33-git-send-email-daniel.lezcano@linaro.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1439200352-26767-1-git-send-email-daniel.lezcano@linaro.org> References: <55C87382.4070309@linaro.org> <1439200352-26767-1-git-send-email-daniel.lezcano@linaro.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2672 Lines: 87 From: Viresh Kumar Migrate tegra20 driver to the new 'set-state' interface provided by clockevents core, the earlier 'set-mode' interface is marked obsolete now. This also enables us to implement callbacks for new states of clockevent devices, for example: ONESHOT_STOPPED. Cc: Thierry Reding Cc: Stephen Warren Signed-off-by: Viresh Kumar Signed-off-by: Daniel Lezcano --- drivers/clocksource/tegra20_timer.c | 45 ++++++++++++++++++++----------------- 1 file changed, 24 insertions(+), 21 deletions(-) diff --git a/drivers/clocksource/tegra20_timer.c b/drivers/clocksource/tegra20_timer.c index 5a112d7..6ebda11 100644 --- a/drivers/clocksource/tegra20_timer.c +++ b/drivers/clocksource/tegra20_timer.c @@ -72,33 +72,36 @@ static int tegra_timer_set_next_event(unsigned long cycles, return 0; } -static void tegra_timer_set_mode(enum clock_event_mode mode, - struct clock_event_device *evt) +static inline void timer_shutdown(struct clock_event_device *evt) { - u32 reg; - timer_writel(0, TIMER3_BASE + TIMER_PTV); +} - switch (mode) { - case CLOCK_EVT_MODE_PERIODIC: - reg = 0xC0000000 | ((1000000/HZ)-1); - timer_writel(reg, TIMER3_BASE + TIMER_PTV); - break; - case CLOCK_EVT_MODE_ONESHOT: - break; - case CLOCK_EVT_MODE_UNUSED: - case CLOCK_EVT_MODE_SHUTDOWN: - case CLOCK_EVT_MODE_RESUME: - break; - } +static int tegra_timer_shutdown(struct clock_event_device *evt) +{ + timer_shutdown(evt); + return 0; +} + +static int tegra_timer_set_periodic(struct clock_event_device *evt) +{ + u32 reg = 0xC0000000 | ((1000000 / HZ) - 1); + + timer_shutdown(evt); + timer_writel(reg, TIMER3_BASE + TIMER_PTV); + return 0; } static struct clock_event_device tegra_clockevent = { - .name = "timer0", - .rating = 300, - .features = CLOCK_EVT_FEAT_ONESHOT | CLOCK_EVT_FEAT_PERIODIC, - .set_next_event = tegra_timer_set_next_event, - .set_mode = tegra_timer_set_mode, + .name = "timer0", + .rating = 300, + .features = CLOCK_EVT_FEAT_ONESHOT | + CLOCK_EVT_FEAT_PERIODIC, + .set_next_event = tegra_timer_set_next_event, + .set_state_shutdown = tegra_timer_shutdown, + .set_state_periodic = tegra_timer_set_periodic, + .set_state_oneshot = tegra_timer_shutdown, + .tick_resume = tegra_timer_shutdown, }; static u64 notrace tegra_read_sched_clock(void) -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/