From: Chris Zhong <zyw@rock-chips.com>
To: dianders@chromium.org, tfiga@chromium.org, heiko@sntech.de,
yzq@rock-chips.com, mark.rutland@arm.com,
devicetree@vger.kernel.org, robh+dt@kernel.org,
galak@codeaurora.org, pawel.moll@arm.com, seanpaul@chromium.org
Cc: linux-rockchip@lists.infradead.org,
Chris Zhong <zyw@rock-chips.com>,
Mark Yao <mark.yao@rock-chips.com>,
David Airlie <airlied@linux.ie>,
dri-devel@lists.freedesktop.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
Subject: [PATCH v3 5/5] drm/rockchip/dsi: add dw-mipi power domain support
Date: Fri, 20 Jan 2017 18:10:51 +0800 [thread overview]
Message-ID: <1484907051-7159-6-git-send-email-zyw@rock-chips.com> (raw)
In-Reply-To: <1484907051-7159-1-git-send-email-zyw@rock-chips.com>
Reference the power domain incase dw-mipi power down when
in use.
Signed-off-by: Chris Zhong <zyw@rock-chips.com>
---
Changes in v3: None
drivers/gpu/drm/rockchip/dw-mipi-dsi.c | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
diff --git a/drivers/gpu/drm/rockchip/dw-mipi-dsi.c b/drivers/gpu/drm/rockchip/dw-mipi-dsi.c
index 6f0e252..1462101e 100644
--- a/drivers/gpu/drm/rockchip/dw-mipi-dsi.c
+++ b/drivers/gpu/drm/rockchip/dw-mipi-dsi.c
@@ -12,6 +12,7 @@
#include <linux/math64.h>
#include <linux/module.h>
#include <linux/of_device.h>
+#include <linux/pm_runtime.h>
#include <linux/regmap.h>
#include <linux/reset.h>
#include <linux/mfd/syscon.h>
@@ -293,6 +294,7 @@ struct dw_mipi_dsi {
struct clk *pclk;
struct clk *phy_cfg_clk;
+ int dpms_mode;
unsigned int lane_mbps; /* per lane */
u32 channel;
u32 lanes;
@@ -969,6 +971,9 @@ static void dw_mipi_dsi_encoder_disable(struct drm_encoder *encoder)
{
struct dw_mipi_dsi *dsi = encoder_to_dsi(encoder);
+ if (dsi->dpms_mode != DRM_MODE_DPMS_ON)
+ return;
+
if (clk_prepare_enable(dsi->pclk)) {
dev_err(dsi->dev, "%s: Failed to enable pclk\n", __func__);
return;
@@ -980,7 +985,9 @@ static void dw_mipi_dsi_encoder_disable(struct drm_encoder *encoder)
drm_panel_unprepare(dsi->panel);
dw_mipi_dsi_disable(dsi);
+ pm_runtime_put(dsi->dev);
clk_disable_unprepare(dsi->pclk);
+ dsi->dpms_mode = DRM_MODE_DPMS_OFF;
}
static void dw_mipi_dsi_encoder_enable(struct drm_encoder *encoder)
@@ -990,11 +997,15 @@ static void dw_mipi_dsi_encoder_enable(struct drm_encoder *encoder)
int mux = drm_of_encoder_active_endpoint_id(dsi->dev->of_node, encoder);
u32 val;
+ if (dsi->dpms_mode == DRM_MODE_DPMS_ON)
+ return;
+
if (clk_prepare_enable(dsi->pclk)) {
dev_err(dsi->dev, "%s: Failed to enable pclk\n", __func__);
return;
}
+ pm_runtime_get_sync(dsi->dev);
dw_mipi_dsi_init(dsi);
dw_mipi_dsi_dpi_config(dsi);
dw_mipi_dsi_packet_handler_config(dsi);
@@ -1030,6 +1041,7 @@ static void dw_mipi_dsi_encoder_enable(struct drm_encoder *encoder)
regmap_write(dsi->grf_regmap, pdata->grf_switch_reg, val);
dev_dbg(dsi->dev, "vop %s output to dsi0\n", (mux) ? "LIT" : "BIG");
+ dsi->dpms_mode = DRM_MODE_DPMS_ON;
}
static int
@@ -1198,6 +1210,7 @@ static int dw_mipi_dsi_bind(struct device *dev, struct device *master,
dsi->dev = dev;
dsi->pdata = pdata;
+ dsi->dpms_mode = DRM_MODE_DPMS_OFF;
ret = rockchip_mipi_parse_dt(dsi);
if (ret)
@@ -1271,6 +1284,8 @@ static int dw_mipi_dsi_bind(struct device *dev, struct device *master,
dev_set_drvdata(dev, dsi);
+ pm_runtime_enable(dev);
+
dsi->dsi_host.ops = &dw_mipi_dsi_host_ops;
dsi->dsi_host.dev = dev;
ret = mipi_dsi_host_register(&dsi->dsi_host);
@@ -1293,6 +1308,7 @@ static void dw_mipi_dsi_unbind(struct device *dev, struct device *master,
struct dw_mipi_dsi *dsi = dev_get_drvdata(dev);
mipi_dsi_host_unregister(&dsi->dsi_host);
+ pm_runtime_disable(dev);
clk_disable_unprepare(dsi->pllref_clk);
}
--
2.6.3
WARNING: multiple messages have this Message-ID (diff)
From: Chris Zhong <zyw@rock-chips.com>
To: dianders@chromium.org, tfiga@chromium.org, heiko@sntech.de,
yzq@rock-chips.com, mark.rutland@arm.com,
devicetree@vger.kernel.org, robh+dt@kernel.org,
galak@codeaurora.org, pawel.moll@arm.com, seanpaul@chromium.org
Cc: linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org,
linux-rockchip@lists.infradead.org,
Chris Zhong <zyw@rock-chips.com>,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH v3 5/5] drm/rockchip/dsi: add dw-mipi power domain support
Date: Fri, 20 Jan 2017 18:10:51 +0800 [thread overview]
Message-ID: <1484907051-7159-6-git-send-email-zyw@rock-chips.com> (raw)
In-Reply-To: <1484907051-7159-1-git-send-email-zyw@rock-chips.com>
Reference the power domain incase dw-mipi power down when
in use.
Signed-off-by: Chris Zhong <zyw@rock-chips.com>
---
Changes in v3: None
drivers/gpu/drm/rockchip/dw-mipi-dsi.c | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
diff --git a/drivers/gpu/drm/rockchip/dw-mipi-dsi.c b/drivers/gpu/drm/rockchip/dw-mipi-dsi.c
index 6f0e252..1462101e 100644
--- a/drivers/gpu/drm/rockchip/dw-mipi-dsi.c
+++ b/drivers/gpu/drm/rockchip/dw-mipi-dsi.c
@@ -12,6 +12,7 @@
#include <linux/math64.h>
#include <linux/module.h>
#include <linux/of_device.h>
+#include <linux/pm_runtime.h>
#include <linux/regmap.h>
#include <linux/reset.h>
#include <linux/mfd/syscon.h>
@@ -293,6 +294,7 @@ struct dw_mipi_dsi {
struct clk *pclk;
struct clk *phy_cfg_clk;
+ int dpms_mode;
unsigned int lane_mbps; /* per lane */
u32 channel;
u32 lanes;
@@ -969,6 +971,9 @@ static void dw_mipi_dsi_encoder_disable(struct drm_encoder *encoder)
{
struct dw_mipi_dsi *dsi = encoder_to_dsi(encoder);
+ if (dsi->dpms_mode != DRM_MODE_DPMS_ON)
+ return;
+
if (clk_prepare_enable(dsi->pclk)) {
dev_err(dsi->dev, "%s: Failed to enable pclk\n", __func__);
return;
@@ -980,7 +985,9 @@ static void dw_mipi_dsi_encoder_disable(struct drm_encoder *encoder)
drm_panel_unprepare(dsi->panel);
dw_mipi_dsi_disable(dsi);
+ pm_runtime_put(dsi->dev);
clk_disable_unprepare(dsi->pclk);
+ dsi->dpms_mode = DRM_MODE_DPMS_OFF;
}
static void dw_mipi_dsi_encoder_enable(struct drm_encoder *encoder)
@@ -990,11 +997,15 @@ static void dw_mipi_dsi_encoder_enable(struct drm_encoder *encoder)
int mux = drm_of_encoder_active_endpoint_id(dsi->dev->of_node, encoder);
u32 val;
+ if (dsi->dpms_mode == DRM_MODE_DPMS_ON)
+ return;
+
if (clk_prepare_enable(dsi->pclk)) {
dev_err(dsi->dev, "%s: Failed to enable pclk\n", __func__);
return;
}
+ pm_runtime_get_sync(dsi->dev);
dw_mipi_dsi_init(dsi);
dw_mipi_dsi_dpi_config(dsi);
dw_mipi_dsi_packet_handler_config(dsi);
@@ -1030,6 +1041,7 @@ static void dw_mipi_dsi_encoder_enable(struct drm_encoder *encoder)
regmap_write(dsi->grf_regmap, pdata->grf_switch_reg, val);
dev_dbg(dsi->dev, "vop %s output to dsi0\n", (mux) ? "LIT" : "BIG");
+ dsi->dpms_mode = DRM_MODE_DPMS_ON;
}
static int
@@ -1198,6 +1210,7 @@ static int dw_mipi_dsi_bind(struct device *dev, struct device *master,
dsi->dev = dev;
dsi->pdata = pdata;
+ dsi->dpms_mode = DRM_MODE_DPMS_OFF;
ret = rockchip_mipi_parse_dt(dsi);
if (ret)
@@ -1271,6 +1284,8 @@ static int dw_mipi_dsi_bind(struct device *dev, struct device *master,
dev_set_drvdata(dev, dsi);
+ pm_runtime_enable(dev);
+
dsi->dsi_host.ops = &dw_mipi_dsi_host_ops;
dsi->dsi_host.dev = dev;
ret = mipi_dsi_host_register(&dsi->dsi_host);
@@ -1293,6 +1308,7 @@ static void dw_mipi_dsi_unbind(struct device *dev, struct device *master,
struct dw_mipi_dsi *dsi = dev_get_drvdata(dev);
mipi_dsi_host_unregister(&dsi->dsi_host);
+ pm_runtime_disable(dev);
clk_disable_unprepare(dsi->pllref_clk);
}
--
2.6.3
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel
WARNING: multiple messages have this Message-ID (diff)
From: zyw@rock-chips.com (Chris Zhong)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v3 5/5] drm/rockchip/dsi: add dw-mipi power domain support
Date: Fri, 20 Jan 2017 18:10:51 +0800 [thread overview]
Message-ID: <1484907051-7159-6-git-send-email-zyw@rock-chips.com> (raw)
In-Reply-To: <1484907051-7159-1-git-send-email-zyw@rock-chips.com>
Reference the power domain incase dw-mipi power down when
in use.
Signed-off-by: Chris Zhong <zyw@rock-chips.com>
---
Changes in v3: None
drivers/gpu/drm/rockchip/dw-mipi-dsi.c | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
diff --git a/drivers/gpu/drm/rockchip/dw-mipi-dsi.c b/drivers/gpu/drm/rockchip/dw-mipi-dsi.c
index 6f0e252..1462101e 100644
--- a/drivers/gpu/drm/rockchip/dw-mipi-dsi.c
+++ b/drivers/gpu/drm/rockchip/dw-mipi-dsi.c
@@ -12,6 +12,7 @@
#include <linux/math64.h>
#include <linux/module.h>
#include <linux/of_device.h>
+#include <linux/pm_runtime.h>
#include <linux/regmap.h>
#include <linux/reset.h>
#include <linux/mfd/syscon.h>
@@ -293,6 +294,7 @@ struct dw_mipi_dsi {
struct clk *pclk;
struct clk *phy_cfg_clk;
+ int dpms_mode;
unsigned int lane_mbps; /* per lane */
u32 channel;
u32 lanes;
@@ -969,6 +971,9 @@ static void dw_mipi_dsi_encoder_disable(struct drm_encoder *encoder)
{
struct dw_mipi_dsi *dsi = encoder_to_dsi(encoder);
+ if (dsi->dpms_mode != DRM_MODE_DPMS_ON)
+ return;
+
if (clk_prepare_enable(dsi->pclk)) {
dev_err(dsi->dev, "%s: Failed to enable pclk\n", __func__);
return;
@@ -980,7 +985,9 @@ static void dw_mipi_dsi_encoder_disable(struct drm_encoder *encoder)
drm_panel_unprepare(dsi->panel);
dw_mipi_dsi_disable(dsi);
+ pm_runtime_put(dsi->dev);
clk_disable_unprepare(dsi->pclk);
+ dsi->dpms_mode = DRM_MODE_DPMS_OFF;
}
static void dw_mipi_dsi_encoder_enable(struct drm_encoder *encoder)
@@ -990,11 +997,15 @@ static void dw_mipi_dsi_encoder_enable(struct drm_encoder *encoder)
int mux = drm_of_encoder_active_endpoint_id(dsi->dev->of_node, encoder);
u32 val;
+ if (dsi->dpms_mode == DRM_MODE_DPMS_ON)
+ return;
+
if (clk_prepare_enable(dsi->pclk)) {
dev_err(dsi->dev, "%s: Failed to enable pclk\n", __func__);
return;
}
+ pm_runtime_get_sync(dsi->dev);
dw_mipi_dsi_init(dsi);
dw_mipi_dsi_dpi_config(dsi);
dw_mipi_dsi_packet_handler_config(dsi);
@@ -1030,6 +1041,7 @@ static void dw_mipi_dsi_encoder_enable(struct drm_encoder *encoder)
regmap_write(dsi->grf_regmap, pdata->grf_switch_reg, val);
dev_dbg(dsi->dev, "vop %s output to dsi0\n", (mux) ? "LIT" : "BIG");
+ dsi->dpms_mode = DRM_MODE_DPMS_ON;
}
static int
@@ -1198,6 +1210,7 @@ static int dw_mipi_dsi_bind(struct device *dev, struct device *master,
dsi->dev = dev;
dsi->pdata = pdata;
+ dsi->dpms_mode = DRM_MODE_DPMS_OFF;
ret = rockchip_mipi_parse_dt(dsi);
if (ret)
@@ -1271,6 +1284,8 @@ static int dw_mipi_dsi_bind(struct device *dev, struct device *master,
dev_set_drvdata(dev, dsi);
+ pm_runtime_enable(dev);
+
dsi->dsi_host.ops = &dw_mipi_dsi_host_ops;
dsi->dsi_host.dev = dev;
ret = mipi_dsi_host_register(&dsi->dsi_host);
@@ -1293,6 +1308,7 @@ static void dw_mipi_dsi_unbind(struct device *dev, struct device *master,
struct dw_mipi_dsi *dsi = dev_get_drvdata(dev);
mipi_dsi_host_unregister(&dsi->dsi_host);
+ pm_runtime_disable(dev);
clk_disable_unprepare(dsi->pllref_clk);
}
--
2.6.3
next prev parent reply other threads:[~2017-01-20 10:20 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-01-20 10:10 [PATCH v3 0/5] Rockchip dw-mipi-dsi driver Chris Zhong
2017-01-20 10:10 ` Chris Zhong
2017-01-20 10:10 ` Chris Zhong
2017-01-20 10:10 ` [PATCH v3 1/5] dt-bindings: add rk3399 support for dw-mipi-rockchip Chris Zhong
2017-01-20 10:10 ` Chris Zhong
2017-01-20 10:10 ` Chris Zhong
2017-01-20 10:10 ` [PATCH v3 2/5] drm/rockchip/dsi: dw-mipi: support RK3399 mipi dsi Chris Zhong
2017-01-20 10:10 ` Chris Zhong
2017-01-20 10:10 ` Chris Zhong
2017-01-23 17:30 ` Sean Paul
2017-01-23 17:30 ` Sean Paul
2017-01-23 17:30 ` Sean Paul
2017-01-20 10:10 ` [PATCH v3 3/5] drm/rockchip/dsi: remove mode_valid function Chris Zhong
2017-01-20 10:10 ` Chris Zhong
2017-01-20 10:10 ` Chris Zhong
2017-01-23 17:48 ` Sean Paul
2017-01-23 17:48 ` Sean Paul
2017-01-24 2:27 ` Chris Zhong
2017-01-24 2:27 ` Chris Zhong
2017-01-24 2:27 ` Chris Zhong
2017-02-01 18:12 ` Sean Paul
2017-02-01 18:12 ` Sean Paul
2017-02-01 18:12 ` Sean Paul
2017-02-05 3:42 ` Chris Zhong
2017-02-05 3:42 ` Chris Zhong
2017-02-05 3:42 ` Chris Zhong
2017-02-05 7:42 ` Mark yao
2017-02-05 7:42 ` Mark yao
2017-02-05 7:42 ` Mark yao
2017-01-20 10:10 ` [PATCH v3 4/5] dt-bindings: add power domain node for dw-mipi-rockchip Chris Zhong
2017-01-20 10:10 ` Chris Zhong
2017-01-20 10:10 ` Chris Zhong
2017-01-20 10:10 ` Chris Zhong [this message]
2017-01-20 10:10 ` [PATCH v3 5/5] drm/rockchip/dsi: add dw-mipi power domain support Chris Zhong
2017-01-20 10:10 ` Chris Zhong
2017-01-23 18:03 ` Sean Paul
2017-01-23 18:03 ` Sean Paul
2017-01-23 18:03 ` Sean Paul
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