From 6b6776e2ab8ac7086cf31ad339411df7681715b7 Mon Sep 17 00:00:00 2001 From: Dmitry Osipenko Date: Wed, 1 Dec 2021 02:23:15 +0300 Subject: gpu: host1x: Add initial runtime PM and OPP support Add runtime PM and OPP support to the Host1x driver. For the starter we will keep host1x always-on because dynamic power management require a major refactoring of the driver code since lot's of code paths are missing the RPM handling and we're going to remove some of these paths in the future. Reviewed-by: Ulf Hansson Tested-by: Peter Geis # Ouya T30 Tested-by: Paul Fertser # PAZ00 T20 Tested-by: Nicolas Chauvet # PAZ00 T20 and TK1 T124 Tested-by: Matt Merhar # Ouya T30 Signed-off-by: Dmitry Osipenko Signed-off-by: Thierry Reding --- drivers/gpu/host1x/syncpt.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) (limited to 'drivers/gpu/host1x/syncpt.c') diff --git a/drivers/gpu/host1x/syncpt.c b/drivers/gpu/host1x/syncpt.c index d198a10848c6..e08e331e46ae 100644 --- a/drivers/gpu/host1x/syncpt.c +++ b/drivers/gpu/host1x/syncpt.c @@ -143,6 +143,8 @@ void host1x_syncpt_restore(struct host1x *host) for (i = 0; i < host1x_syncpt_nb_bases(host); i++) host1x_hw_syncpt_restore_wait_base(host, sp_base + i); + host1x_hw_syncpt_enable_protection(host); + wmb(); } @@ -366,9 +368,6 @@ int host1x_syncpt_init(struct host1x *host) host->syncpt = syncpt; host->bases = bases; - host1x_syncpt_restore(host); - host1x_hw_syncpt_enable_protection(host); - /* Allocate sync point to use for clearing waits for expired fences */ host->nop_sp = host1x_syncpt_alloc(host, 0, "reserved-nop"); if (!host->nop_sp) -- cgit