linux-kernel - [PATCH v2 07/11] drm/komeda: Add komeda_crtc_vblank

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Date:   Tue, 22 Jan 2019 11:11:25 +0000
From:   "james qian wang (Arm Technology China)" <james.qian.wang@....com>
To:     Liviu Dudau <Liviu.Dudau@....com>,
        "airlied@...ux.ie" <airlied@...ux.ie>,
        Brian Starkey <Brian.Starkey@....com>
CC:     "Jonathan Chai (Arm Technology China)" <Jonathan.Chai@....com>,
        "Julien Yin (Arm Technology China)" <Julien.Yin@....com>,
        "thomas Sun (Arm Technology China)" <thomas.Sun@....com>,
        "Lowry Li (Arm Technology China)" <Lowry.Li@....com>,
        Ayan Halder <Ayan.Halder@....com>,
        "Tiannan Zhu (Arm Technology China)" <Tiannan.Zhu@....com>,
        "Jin Gao (Arm Technology China)" <Jin.Gao@....com>,
        "Yiqi Kang (Arm Technology China)" <Yiqi.Kang@....com>,
        nd <nd@....com>, "malidp@...s.arm.com" <malidp@...s.arm.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "dri-devel@...ts.freedesktop.org" <dri-devel@...ts.freedesktop.org>,
        "james qian wang (Arm Technology China)" <james.qian.wang@....com>
Subject: [PATCH v2 07/11] drm/komeda: Add komeda_crtc_vblank_enable/disable

From: "james qian wang (Arm Technology China)" <james.qian.wang@....com>

Add a new komeda_dev_func->on_off_vblank to enable/disable HW vblank event

Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@....com>
---
 .../gpu/drm/arm/display/komeda/d71/d71_dev.c  | 10 ++++++++++
 .../gpu/drm/arm/display/komeda/komeda_crtc.c  | 19 +++++++++++++++++++
 .../gpu/drm/arm/display/komeda/komeda_dev.h   |  3 +++
 3 files changed, 32 insertions(+)

diff --git a/drivers/gpu/drm/arm/display/komeda/d71/d71_dev.c b/drivers/gpu/drm/arm/display/komeda/d71/d71_dev.c
index 2fb29aea9f69..f517ab0ceae9 100644
--- a/drivers/gpu/drm/arm/display/komeda/d71/d71_dev.c
+++ b/drivers/gpu/drm/arm/display/komeda/d71/d71_dev.c
@@ -241,6 +241,15 @@ static int d71_disable_irq(struct komeda_dev *mdev)
 	return 0;
 }
 
+static void d71_on_off_vblank(struct komeda_dev *mdev, int master_pipe, bool on)
+{
+	struct d71_dev *d71 = mdev->chip_data;
+	struct d71_pipeline *pipe = d71->pipes[master_pipe];
+
+	malidp_write32_mask(pipe->dou_addr, BLK_IRQ_MASK,
+			    DOU_IRQ_PL0, on ? DOU_IRQ_PL0 : 0);
+}
+
 static int to_d71_opmode(int core_mode)
 {
 	switch (core_mode) {
@@ -498,6 +507,7 @@ static struct komeda_dev_funcs d71_chip_funcs = {
 	.irq_handler	= d71_irq_handler,
 	.enable_irq	= d71_enable_irq,
 	.disable_irq	= d71_disable_irq,
+	.on_off_vblank	= d71_on_off_vblank,
 	.change_opmode	= d71_change_opmode,
 	.flush		= d71_flush,
 };
diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_crtc.c b/drivers/gpu/drm/arm/display/komeda/komeda_crtc.c
index 9b370e1232e2..e19ba9468d31 100644
--- a/drivers/gpu/drm/arm/display/komeda/komeda_crtc.c
+++ b/drivers/gpu/drm/arm/display/komeda/komeda_crtc.c
@@ -347,7 +347,26 @@ struct drm_crtc_helper_funcs komeda_crtc_helper_funcs = {
 	.mode_fixup	= komeda_crtc_mode_fixup,
 };
 
+static int komeda_crtc_vblank_enable(struct drm_crtc *crtc)
+{
+	struct komeda_dev *mdev = crtc->dev->dev_private;
+	struct komeda_crtc *kcrtc = to_kcrtc(crtc);
+
+	mdev->funcs->on_off_vblank(mdev, kcrtc->master->id, true);
+	return 0;
+}
+
+static void komeda_crtc_vblank_disable(struct drm_crtc *crtc)
+{
+	struct komeda_dev *mdev = crtc->dev->dev_private;
+	struct komeda_crtc *kcrtc = to_kcrtc(crtc);
+
+	mdev->funcs->on_off_vblank(mdev, kcrtc->master->id, false);
+}
+
 static const struct drm_crtc_funcs komeda_crtc_funcs = {
+	.enable_vblank		= komeda_crtc_vblank_enable,
+	.disable_vblank		= komeda_crtc_vblank_disable,
 };
 
 int komeda_kms_setup_crtcs(struct komeda_kms_dev *kms,
diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_dev.h b/drivers/gpu/drm/arm/display/komeda/komeda_dev.h
index 1ad1f6e49854..8acd25afb3e9 100644
--- a/drivers/gpu/drm/arm/display/komeda/komeda_dev.h
+++ b/drivers/gpu/drm/arm/display/komeda/komeda_dev.h
@@ -103,6 +103,9 @@ struct komeda_dev_funcs {
 	int (*enable_irq)(struct komeda_dev *mdev);
 	/** @disable_irq: disable irq */
 	int (*disable_irq)(struct komeda_dev *mdev);
+	/** @on_off_vblank: notify HW to on/off vblank */
+	void (*on_off_vblank)(struct komeda_dev *mdev,
+			      int master_pipe, bool on);
 
 	/** @dump_register: Optional, dump registers to seq_file */
 	void (*dump_register)(struct komeda_dev *mdev, struct seq_file *seq);
-- 
2.17.1