diff options
| author |   Tony Lindgren <tony@atomide.com> | 2021-04-15 11:55:06 +0300 |
|---|---|---|
| committer |   Daniel Lezcano <daniel.lezcano@linaro.org> | 2021-06-15 14:14:14 +0200 |
| commit | 9517c577f9f722270584cfb1a7b4e1354e408658 (patch) | |
| tree | 74447ba0700e24b2ee3a2fa0cbe0f01d0a614dcb /drivers/clocksource | |
| parent | clocksource/drivers/mediatek: Ack and disable interrupts on suspend (diff) | |
| download | linux-dev-9517c577f9f722270584cfb1a7b4e1354e408658.tar.xz linux-dev-9517c577f9f722270584cfb1a7b4e1354e408658.zip | |
clocksource/drivers/timer-ti-dm: Save and restore timer TIOCP_CFG
As we are using cpu_pm to save and restore context, we must also save and
restore the timer sysconfig register TIOCP_CFG. This is needed because
we are not calling PM runtime functions at all with cpu_pm.
Fixes: b34677b0999a ("clocksource/drivers/timer-ti-dm: Implement cpu_pm notifier for context save and restore")
Cc: Aaro Koskinen <aaro.koskinen@iki.fi>
Cc: Adam Ford <aford173@gmail.com>
Cc: Andreas Kemnade <andreas@kemnade.info>
Cc: Lokesh Vutla <lokeshvutla@ti.com>
Cc: Peter Ujfalusi <peter.ujfalusi@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20210415085506.56828-1-tony@atomide.com
Diffstat (limited to 'drivers/clocksource')
| -rw-r--r-- | drivers/clocksource/timer-ti-dm.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/clocksource/timer-ti-dm.c b/drivers/clocksource/timer-ti-dm.c index 33eeabf9c3d1..e5c631f1b5cb 100644 --- a/drivers/clocksource/timer-ti-dm.c +++ b/drivers/clocksource/timer-ti-dm.c @@ -78,6 +78,9 @@ static void omap_dm_timer_write_reg(struct omap_dm_timer *timer, u32 reg, static void omap_timer_restore_context(struct omap_dm_timer *timer) { + __omap_dm_timer_write(timer, OMAP_TIMER_OCP_CFG_OFFSET, + timer->context.ocp_cfg, 0); + omap_dm_timer_write_reg(timer, OMAP_TIMER_WAKEUP_EN_REG, timer->context.twer); omap_dm_timer_write_reg(timer, OMAP_TIMER_COUNTER_REG, @@ -95,6 +98,9 @@ static void omap_timer_restore_context(struct omap_dm_timer *timer) static void omap_timer_save_context(struct omap_dm_timer *timer) { + timer->context.ocp_cfg = + __omap_dm_timer_read(timer, OMAP_TIMER_OCP_CFG_OFFSET, 0); + timer->context.tclr = omap_dm_timer_read_reg(timer, OMAP_TIMER_CTRL_REG); timer->context.twer = |