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Date: Mon, 10 Jun 2019 20:55:07 +0800
From: Yong Wu <yong.wu@...iatek.com>
To: Matthias Brugger <matthias.bgg@...il.com>,
Joerg Roedel <joro@...tes.org>,
Rob Herring <robh+dt@...nel.org>
CC: Evan Green <evgreen@...omium.org>,
Robin Murphy <robin.murphy@....com>,
Tomasz Figa <tfiga@...gle.com>,
Will Deacon <will.deacon@....com>,
<linux-mediatek@...ts.infradead.org>,
<srv_heupstream@...iatek.com>, <devicetree@...r.kernel.org>,
<linux-kernel@...r.kernel.org>,
<linux-arm-kernel@...ts.infradead.org>,
<iommu@...ts.linux-foundation.org>, <yingjoe.chen@...iatek.com>,
<yong.wu@...iatek.com>, <youlin.pei@...iatek.com>,
Nicolas Boichat <drinkcat@...omium.org>,
<anan.sun@...iatek.com>, Minghsiu Tsai <minghsiu.tsai@...iatek.com>
Subject: [PATCH v2 06/12] media: mtk-mdp: Get rid of mtk_smi_larb_get/put
MediaTek IOMMU has already added the device_link between the consumer
and smi-larb device. If the mdp device call the pm_runtime_get_sync,
the smi-larb's pm_runtime_get_sync also be called automatically.
CC: Minghsiu Tsai <minghsiu.tsai@...iatek.com>
Signed-off-by: Yong Wu <yong.wu@...iatek.com>
Reviewed-by: Evan Green <evgreen@...omium.org>
---
drivers/media/platform/mtk-mdp/mtk_mdp_comp.c | 38 ---------------------------
drivers/media/platform/mtk-mdp/mtk_mdp_comp.h | 2 --
drivers/media/platform/mtk-mdp/mtk_mdp_core.c | 1 -
3 files changed, 41 deletions(-)
diff --git a/drivers/media/platform/mtk-mdp/mtk_mdp_comp.c b/drivers/media/platform/mtk-mdp/mtk_mdp_comp.c
index 03aba03..4f7cbc4 100644
--- a/drivers/media/platform/mtk-mdp/mtk_mdp_comp.c
+++ b/drivers/media/platform/mtk-mdp/mtk_mdp_comp.c
@@ -17,7 +17,6 @@
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/of_platform.h>
-#include <soc/mediatek/smi.h>
#include "mtk_mdp_comp.h"
@@ -66,14 +65,6 @@ void mtk_mdp_comp_clock_on(struct device *dev, struct mtk_mdp_comp *comp)
{
int i, err;
- if (comp->larb_dev) {
- err = mtk_smi_larb_get(comp->larb_dev);
- if (err)
- dev_err(dev,
- "failed to get larb, err %d. type:%d id:%d\n",
- err, comp->type, comp->id);
- }
-
for (i = 0; i < ARRAY_SIZE(comp->clk); i++) {
if (IS_ERR(comp->clk[i]))
continue;
@@ -94,16 +85,11 @@ void mtk_mdp_comp_clock_off(struct device *dev, struct mtk_mdp_comp *comp)
continue;
clk_disable_unprepare(comp->clk[i]);
}
-
- if (comp->larb_dev)
- mtk_smi_larb_put(comp->larb_dev);
}
int mtk_mdp_comp_init(struct device *dev, struct device_node *node,
struct mtk_mdp_comp *comp, enum mtk_mdp_comp_id comp_id)
{
- struct device_node *larb_node;
- struct platform_device *larb_pdev;
int i;
if (comp_id < 0 || comp_id >= MTK_MDP_COMP_ID_MAX) {
@@ -124,30 +110,6 @@ int mtk_mdp_comp_init(struct device *dev, struct device_node *node,
break;
}
- /* Only DMA capable components need the LARB property */
- comp->larb_dev = NULL;
- if (comp->type != MTK_MDP_RDMA &&
- comp->type != MTK_MDP_WDMA &&
- comp->type != MTK_MDP_WROT)
- return 0;
-
- larb_node = of_parse_phandle(node, "mediatek,larb", 0);
- if (!larb_node) {
- dev_err(dev,
- "Missing mediadek,larb phandle in %pOF node\n", node);
- return -EINVAL;
- }
-
- larb_pdev = of_find_device_by_node(larb_node);
- if (!larb_pdev) {
- dev_warn(dev, "Waiting for larb device %pOF\n", larb_node);
- of_node_put(larb_node);
- return -EPROBE_DEFER;
- }
- of_node_put(larb_node);
-
- comp->larb_dev = &larb_pdev->dev;
-
return 0;
}
diff --git a/drivers/media/platform/mtk-mdp/mtk_mdp_comp.h b/drivers/media/platform/mtk-mdp/mtk_mdp_comp.h
index 63b3983..602d577 100644
--- a/drivers/media/platform/mtk-mdp/mtk_mdp_comp.h
+++ b/drivers/media/platform/mtk-mdp/mtk_mdp_comp.h
@@ -47,7 +47,6 @@ enum mtk_mdp_comp_id {
* @dev_node: component device node
* @clk: clocks required for component
* @regs: Mapped address of component registers.
- * @larb_dev: SMI device required for component
* @type: component type
* @id: component ID
*/
@@ -55,7 +54,6 @@ struct mtk_mdp_comp {
struct device_node *dev_node;
struct clk *clk[2];
void __iomem *regs;
- struct device *larb_dev;
enum mtk_mdp_comp_type type;
enum mtk_mdp_comp_id id;
};
diff --git a/drivers/media/platform/mtk-mdp/mtk_mdp_core.c b/drivers/media/platform/mtk-mdp/mtk_mdp_core.c
index bbb24fb..adb098d 100644
--- a/drivers/media/platform/mtk-mdp/mtk_mdp_core.c
+++ b/drivers/media/platform/mtk-mdp/mtk_mdp_core.c
@@ -25,7 +25,6 @@
#include <linux/platform_device.h>
#include <linux/pm_runtime.h>
#include <linux/workqueue.h>
-#include <soc/mediatek/smi.h>
#include "mtk_mdp_core.h"
#include "mtk_mdp_m2m.h"
--
1.9.1
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