Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755532AbbHJKH1 (ORCPT ); Mon, 10 Aug 2015 06:07:27 -0400 Received: from mail-wi0-f178.google.com ([209.85.212.178]:33239 "EHLO mail-wi0-f178.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933179AbbHJJyJ (ORCPT ); Mon, 10 Aug 2015 05:54:09 -0400 From: Daniel Lezcano To: mingo@kernel.org Cc: tglx@linutronix.de, linux-kernel@vger.kernel.org, Viresh Kumar , Magnus Damm , Laurent Pinchart , Paul Mundt Subject: [PATCH 29/74] clockevents/drivers/sh_cmt: Migrate to new 'set-state' interface Date: Mon, 10 Aug 2015 11:51:46 +0200 Message-Id: <1439200352-26767-29-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: 4536 Lines: 134 From: Viresh Kumar Migrate sh_cmt 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: Magnus Damm Cc: Laurent Pinchart Cc: Paul Mundt Signed-off-by: Viresh Kumar Signed-off-by: Daniel Lezcano Acked-by: Laurent Pinchart --- drivers/clocksource/sh_cmt.c | 62 ++++++++++++++++++++++---------------------- 1 file changed, 31 insertions(+), 31 deletions(-) diff --git a/drivers/clocksource/sh_cmt.c b/drivers/clocksource/sh_cmt.c index d56d4e0..e903026 100644 --- a/drivers/clocksource/sh_cmt.c +++ b/drivers/clocksource/sh_cmt.c @@ -538,7 +538,7 @@ static irqreturn_t sh_cmt_interrupt(int irq, void *dev_id) if (ch->flags & FLAG_CLOCKEVENT) { if (!(ch->flags & FLAG_SKIPEVENT)) { - if (ch->ced.mode == CLOCK_EVT_MODE_ONESHOT) { + if (clockevent_state_oneshot(&ch->ced)) { ch->next_match_value = ch->max_match_value; ch->flags |= FLAG_REPROGRAM; } @@ -554,7 +554,7 @@ static irqreturn_t sh_cmt_interrupt(int irq, void *dev_id) sh_cmt_clock_event_program_verify(ch, 1); if (ch->flags & FLAG_CLOCKEVENT) - if ((ch->ced.mode == CLOCK_EVT_MODE_SHUTDOWN) + if ((clockevent_state_shutdown(&ch->ced)) || (ch->match_value == ch->next_match_value)) ch->flags &= ~FLAG_REPROGRAM; } @@ -720,39 +720,37 @@ static void sh_cmt_clock_event_start(struct sh_cmt_channel *ch, int periodic) sh_cmt_set_next(ch, ch->max_match_value); } -static void sh_cmt_clock_event_mode(enum clock_event_mode mode, - struct clock_event_device *ced) +static int sh_cmt_clock_event_shutdown(struct clock_event_device *ced) +{ + struct sh_cmt_channel *ch = ced_to_sh_cmt(ced); + + sh_cmt_stop(ch, FLAG_CLOCKEVENT); + return 0; +} + +static int sh_cmt_clock_event_set_state(struct clock_event_device *ced, + int periodic) { struct sh_cmt_channel *ch = ced_to_sh_cmt(ced); /* deal with old setting first */ - switch (ced->mode) { - case CLOCK_EVT_MODE_PERIODIC: - case CLOCK_EVT_MODE_ONESHOT: + if (clockevent_state_oneshot(ced) || clockevent_state_periodic(ced)) sh_cmt_stop(ch, FLAG_CLOCKEVENT); - break; - default: - break; - } - switch (mode) { - case CLOCK_EVT_MODE_PERIODIC: - dev_info(&ch->cmt->pdev->dev, - "ch%u: used for periodic clock events\n", ch->index); - sh_cmt_clock_event_start(ch, 1); - break; - case CLOCK_EVT_MODE_ONESHOT: - dev_info(&ch->cmt->pdev->dev, - "ch%u: used for oneshot clock events\n", ch->index); - sh_cmt_clock_event_start(ch, 0); - break; - case CLOCK_EVT_MODE_SHUTDOWN: - case CLOCK_EVT_MODE_UNUSED: - sh_cmt_stop(ch, FLAG_CLOCKEVENT); - break; - default: - break; - } + dev_info(&ch->cmt->pdev->dev, "ch%u: used for %s clock events\n", + ch->index, periodic ? "periodic" : "oneshot"); + sh_cmt_clock_event_start(ch, periodic); + return 0; +} + +static int sh_cmt_clock_event_set_oneshot(struct clock_event_device *ced) +{ + return sh_cmt_clock_event_set_state(ced, 0); +} + +static int sh_cmt_clock_event_set_periodic(struct clock_event_device *ced) +{ + return sh_cmt_clock_event_set_state(ced, 1); } static int sh_cmt_clock_event_next(unsigned long delta, @@ -760,7 +758,7 @@ static int sh_cmt_clock_event_next(unsigned long delta, { struct sh_cmt_channel *ch = ced_to_sh_cmt(ced); - BUG_ON(ced->mode != CLOCK_EVT_MODE_ONESHOT); + BUG_ON(!clockevent_state_oneshot(ced)); if (likely(ch->flags & FLAG_IRQCONTEXT)) ch->next_match_value = delta - 1; else @@ -814,7 +812,9 @@ static int sh_cmt_register_clockevent(struct sh_cmt_channel *ch, ced->rating = 125; ced->cpumask = cpu_possible_mask; ced->set_next_event = sh_cmt_clock_event_next; - ced->set_mode = sh_cmt_clock_event_mode; + ced->set_state_shutdown = sh_cmt_clock_event_shutdown; + ced->set_state_periodic = sh_cmt_clock_event_set_periodic; + ced->set_state_oneshot = sh_cmt_clock_event_set_oneshot; ced->suspend = sh_cmt_clock_event_suspend; ced->resume = sh_cmt_clock_event_resume; -- 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/