From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ayan Kumar Halder Subject: [PATCH 6/8] drm/arm/malidp: Enable/disable the scaling engine interrupts with memory writeback Date: Mon, 26 Mar 2018 18:03:18 +0100 Message-ID: <1522083800-30100-7-git-send-email-ayan.halder@arm.com> References: <1522083800-30100-1-git-send-email-ayan.halder@arm.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: In-Reply-To: <1522083800-30100-1-git-send-email-ayan.halder@arm.com> Sender: linux-kernel-owner@vger.kernel.org To: ayan.halder@arm.com, liviu.dudau@arm.com, brian.starkey@arm.com, malidp@foss.arm.com, airlied@linux.ie, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org Cc: nd@arm.com List-Id: dri-devel@lists.freedesktop.org Scaling engine interrupts need to be enabled/disabled as and when memwrite is enabled and disabled. The reason being scaling engine interrupts are used only by the memory writeout layer. This patch depends on: "[Patch v5,1/3] drm: mali-dp: Add support for writeback on DP550/DP650" Change-Id: Ic78aa5cd7b53998a1947067c4a15c19de239583b Signed-off-by: Ayan Kumar Halder --- drivers/gpu/drm/arm/malidp_hw.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/arm/malidp_hw.c b/drivers/gpu/drm/arm/malidp_hw.c index f5633bc..90d76e4 100644 --- a/drivers/gpu/drm/arm/malidp_hw.c +++ b/drivers/gpu/drm/arm/malidp_hw.c @@ -621,12 +621,14 @@ static int malidp550_enable_memwrite(struct malidp_hw_device *hwdev, malidp_hw_setbits(hwdev, MALIDP550_SE_MEMWRITE_ONESHOT | MALIDP_SE_MEMWRITE_EN, MALIDP550_SE_CONTROL); + malidp_se_irq_hw_init(hwdev); return 0; } static void malidp550_disable_memwrite(struct malidp_hw_device *hwdev) { u32 base = malidp_get_block_base(hwdev, MALIDP_DE_BLOCK); + malidp_se_irq_fini(hwdev); malidp_hw_clearbits(hwdev, MALIDP550_SE_MEMWRITE_ONESHOT | MALIDP_SE_MEMWRITE_EN, MALIDP550_SE_CONTROL); malidp_hw_clearbits(hwdev, MALIDP_SCALE_ENGINE_EN, base + MALIDP_DE_DISPLAY_FUNC); -- 2.7.4