From 3446d7e9883d70882568b0f7b6549835d51a8bc7 Mon Sep 17 00:00:00 2001 From: Qiang Yu Date: Tue, 21 Apr 2020 21:35:48 +0800 Subject: drm/lima: add resume/suspend callback for each ip For called when PM do resume/suspend. Tested-by: Bhushan Shah Reviewed-by: Vasily Khoruzhick Signed-off-by: Qiang Yu Link: https://patchwork.freedesktop.org/patch/msgid/20200421133551.31481-8-yuq825@gmail.com --- drivers/gpu/drm/lima/lima_l2_cache.c | 38 ++++++++++++++++++++++++++---------- 1 file changed, 28 insertions(+), 10 deletions(-) (limited to 'drivers/gpu/drm/lima/lima_l2_cache.c') diff --git a/drivers/gpu/drm/lima/lima_l2_cache.c b/drivers/gpu/drm/lima/lima_l2_cache.c index 6873a7af5a5c..c4080a02957b 100644 --- a/drivers/gpu/drm/lima/lima_l2_cache.c +++ b/drivers/gpu/drm/lima/lima_l2_cache.c @@ -38,9 +38,35 @@ int lima_l2_cache_flush(struct lima_ip *ip) return ret; } +static int lima_l2_cache_hw_init(struct lima_ip *ip) +{ + int err; + + err = lima_l2_cache_flush(ip); + if (err) + return err; + + l2_cache_write(LIMA_L2_CACHE_ENABLE, + LIMA_L2_CACHE_ENABLE_ACCESS | + LIMA_L2_CACHE_ENABLE_READ_ALLOCATE); + l2_cache_write(LIMA_L2_CACHE_MAX_READS, 0x1c); + + return 0; +} + +int lima_l2_cache_resume(struct lima_ip *ip) +{ + return lima_l2_cache_hw_init(ip); +} + +void lima_l2_cache_suspend(struct lima_ip *ip) +{ + +} + int lima_l2_cache_init(struct lima_ip *ip) { - int i, err; + int i; u32 size; struct lima_device *dev = ip->dev; @@ -63,15 +89,7 @@ int lima_l2_cache_init(struct lima_ip *ip) 1 << (size & 0xff), 1 << ((size >> 24) & 0xff)); - err = lima_l2_cache_flush(ip); - if (err) - return err; - - l2_cache_write(LIMA_L2_CACHE_ENABLE, - LIMA_L2_CACHE_ENABLE_ACCESS|LIMA_L2_CACHE_ENABLE_READ_ALLOCATE); - l2_cache_write(LIMA_L2_CACHE_MAX_READS, 0x1c); - - return 0; + return lima_l2_cache_hw_init(ip); } void lima_l2_cache_fini(struct lima_ip *ip) -- cgit v1.2.3