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Date: Tue, 4 Jan 2022 17:17:12 +0800
From: Moudy Ho <moudy.ho@...iatek.com>
To: Mauro Carvalho Chehab <mchehab@...nel.org>,
Rob Herring <robh+dt@...nel.org>,
Matthias Brugger <matthias.bgg@...il.com>,
Hans Verkuil <hverkuil-cisco@...all.nl>,
Jernej Skrabec <jernej.skrabec@...l.net>
CC: Chun-Kuang Hu <chunkuang.hu@...nel.org>,
Geert Uytterhoeven <geert+renesas@...der.be>,
Rob Landley <rob@...dley.net>,
Laurent Pinchart <laurent.pinchart@...asonboard.com>,
<linux-media@...r.kernel.org>, <devicetree@...r.kernel.org>,
<linux-arm-kernel@...ts.infradead.org>,
<linux-mediatek@...ts.infradead.org>,
<linux-kernel@...r.kernel.org>,
Alexandre Courbot <acourbot@...omium.org>,
<tfiga@...omium.org>, <drinkcat@...omium.org>,
<pihsun@...omium.org>, <hsinyi@...gle.com>,
AngeloGioacchino Del Regno
<angelogioacchino.delregno@...labora.com>,
Maoguang Meng <maoguang.meng@...iatek.com>,
daoyuan huang <daoyuan.huang@...iatek.com>,
Ping-Hsun Wu <ping-hsun.wu@...iatek.com>,
<menghui.lin@...iatek.com>, <sj.huang@...iatek.com>,
<allen-kh.cheng@...iatek.com>, <randy.wu@...iatek.com>,
<moudy.ho@...iatek.com>, <jason-jh.lin@...iatek.com>,
<roy-cw.yeh@...iatek.com>, <river.cheng@...iatek.com>,
<srv_heupstream@...iatek.com>
Subject: [PATCH v11 4/4] soc: mediatek: mutex: add functions that operate registers by CMDQ
Considering that some functions have timing requirements
in specific situation, this patch adds several interface that
operate registers by CMDQ.
Signed-off-by: Moudy Ho <moudy.ho@...iatek.com>
---
drivers/soc/mediatek/mtk-mutex.c | 72 +++++++++++++++++++++++++-
include/linux/soc/mediatek/mtk-mutex.h | 6 +++
2 files changed, 76 insertions(+), 2 deletions(-)
diff --git a/drivers/soc/mediatek/mtk-mutex.c b/drivers/soc/mediatek/mtk-mutex.c
index 64a4f79e432e..615c42260a50 100644
--- a/drivers/soc/mediatek/mtk-mutex.c
+++ b/drivers/soc/mediatek/mtk-mutex.c
@@ -7,10 +7,14 @@
#include <linux/iopoll.h>
#include <linux/module.h>
#include <linux/of_device.h>
+#include <linux/of_address.h>
#include <linux/platform_device.h>
#include <linux/regmap.h>
#include <linux/soc/mediatek/mtk-mmsys.h>
#include <linux/soc/mediatek/mtk-mutex.h>
+#include <linux/soc/mediatek/mtk-cmdq.h>
+
+#define MTK_MUTEX_ENABLE BIT(0)
#define MT2701_MUTEX0_MOD0 0x2c
#define MT2701_MUTEX0_SOF0 0x30
@@ -156,6 +160,7 @@ struct mtk_mutex_data {
const unsigned int mutex_mdp_mod_mask;
const unsigned int mutex_mdp_sof_mask;
const bool no_clk;
+ const bool has_gce_client_reg;
};
struct mtk_mutex_ctx {
@@ -164,6 +169,8 @@ struct mtk_mutex_ctx {
void __iomem *regs;
struct mtk_mutex mutex[10];
const struct mtk_mutex_data *data;
+ phys_addr_t addr;
+ struct cmdq_client_reg cmdq_reg;
};
static const unsigned int mt2701_mutex_mod[DDP_COMPONENT_ID_MAX] = {
@@ -338,6 +345,7 @@ static const struct mtk_mutex_data mt8183_mutex_driver_data = {
.mutex_mdp_mod_mask = MT8183_MUTEX_MDP_MOD_MASK,
.mutex_mdp_sof_mask = MT8183_MUTEX_MDP_SOF_MASK,
.no_clk = true,
+ .has_gce_client_reg = true,
};
static const struct mtk_mutex_data mt8192_mutex_driver_data = {
@@ -510,6 +518,25 @@ u32 mtk_mutex_get_mdp_mod(struct mtk_mutex *mutex, enum mtk_mdp_comp_id id)
}
EXPORT_SYMBOL_GPL(mtk_mutex_get_mdp_mod);
+void mtk_mutex_add_mod_by_cmdq(struct mtk_mutex *mutex, u32 mod,
+ struct mmsys_cmdq_cmd *cmd)
+{
+ struct mtk_mutex_ctx *mtx = container_of(mutex, struct mtk_mutex_ctx,
+ mutex[mutex->id]);
+ unsigned int offset;
+
+ WARN_ON(&mtx->mutex[mutex->id] != mutex);
+
+ offset = DISP_REG_MUTEX_MOD(mtx->data->mutex_mod_reg, mutex->id);
+ cmdq_pkt_write_mask(cmd->pkt, mtx->cmdq_reg.subsys, mtx->addr + offset,
+ mod, mtx->data->mutex_mdp_mod_mask);
+
+ offset = DISP_REG_MUTEX_SOF(mtx->data->mutex_sof_reg, mutex->id);
+ cmdq_pkt_write_mask(cmd->pkt, mtx->cmdq_reg.subsys, mtx->addr + offset,
+ 0, mtx->data->mutex_mdp_sof_mask);
+}
+EXPORT_SYMBOL_GPL(mtk_mutex_add_mod_by_cmdq);
+
void mtk_mutex_enable(struct mtk_mutex *mutex)
{
struct mtk_mutex_ctx *mtx = container_of(mutex, struct mtk_mutex_ctx,
@@ -521,6 +548,20 @@ void mtk_mutex_enable(struct mtk_mutex *mutex)
}
EXPORT_SYMBOL_GPL(mtk_mutex_enable);
+void mtk_mutex_enable_by_cmdq(struct mtk_mutex *mutex,
+ struct mmsys_cmdq_cmd *cmd)
+{
+ struct mtk_mutex_ctx *mtx = container_of(mutex, struct mtk_mutex_ctx,
+ mutex[mutex->id]);
+
+ WARN_ON(&mtx->mutex[mutex->id] != mutex);
+
+ cmdq_pkt_write_mask(cmd->pkt, mtx->cmdq_reg.subsys,
+ mtx->addr + DISP_REG_MUTEX_EN(mutex->id),
+ MTK_MUTEX_ENABLE, MTK_MUTEX_ENABLE);
+}
+EXPORT_SYMBOL_GPL(mtk_mutex_enable_by_cmdq);
+
void mtk_mutex_disable(struct mtk_mutex *mutex)
{
struct mtk_mutex_ctx *mtx = container_of(mutex, struct mtk_mutex_ctx,
@@ -532,6 +573,20 @@ void mtk_mutex_disable(struct mtk_mutex *mutex)
}
EXPORT_SYMBOL_GPL(mtk_mutex_disable);
+void mtk_mutex_disable_by_cmdq(struct mtk_mutex *mutex,
+ struct mmsys_cmdq_cmd *cmd)
+{
+ struct mtk_mutex_ctx *mtx = container_of(mutex, struct mtk_mutex_ctx,
+ mutex[mutex->id]);
+
+ WARN_ON(&mtx->mutex[mutex->id] != mutex);
+
+ cmdq_pkt_write_mask(cmd->pkt, mtx->cmdq_reg.subsys,
+ mtx->addr + DISP_REG_MUTEX_EN(mutex->id),
+ 0x0, MTK_MUTEX_ENABLE);
+}
+EXPORT_SYMBOL_GPL(mtk_mutex_disable_by_cmdq);
+
void mtk_mutex_acquire(struct mtk_mutex *mutex)
{
struct mtk_mutex_ctx *mtx = container_of(mutex, struct mtk_mutex_ctx,
@@ -559,8 +614,8 @@ static int mtk_mutex_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct mtk_mutex_ctx *mtx;
- struct resource *regs;
- int i;
+ struct resource *regs, addr;
+ int i, ret;
mtx = devm_kzalloc(dev, sizeof(*mtx), GFP_KERNEL);
if (!mtx)
@@ -580,6 +635,19 @@ static int mtk_mutex_probe(struct platform_device *pdev)
}
}
+ if (of_address_to_resource(dev->of_node, 0, &addr) < 0)
+ mtx->addr = 0L;
+ else
+ mtx->addr = addr.start;
+
+ if (mtx->data->has_gce_client_reg) {
+ ret = cmdq_dev_get_client_reg(dev, &mtx->cmdq_reg, 0);
+ if (ret) {
+ dev_err(dev, "No mediatek,gce-client-reg!\n");
+ return ret;
+ }
+ }
+
regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
mtx->regs = devm_ioremap_resource(dev, regs);
if (IS_ERR(mtx->regs)) {
diff --git a/include/linux/soc/mediatek/mtk-mutex.h b/include/linux/soc/mediatek/mtk-mutex.h
index b2608f4220ee..05de7ad4a124 100644
--- a/include/linux/soc/mediatek/mtk-mutex.h
+++ b/include/linux/soc/mediatek/mtk-mutex.h
@@ -17,8 +17,14 @@ int mtk_mutex_prepare(struct mtk_mutex *mutex);
void mtk_mutex_add_comp(struct mtk_mutex *mutex,
enum mtk_ddp_comp_id id);
u32 mtk_mutex_get_mdp_mod(struct mtk_mutex *mutex, enum mtk_mdp_comp_id id);
+void mtk_mutex_add_mod_by_cmdq(struct mtk_mutex *mutex, u32 mod,
+ struct mmsys_cmdq_cmd *cmd);
void mtk_mutex_enable(struct mtk_mutex *mutex);
+void mtk_mutex_enable_by_cmdq(struct mtk_mutex *mutex,
+ struct mmsys_cmdq_cmd *cmd);
void mtk_mutex_disable(struct mtk_mutex *mutex);
+void mtk_mutex_disable_by_cmdq(struct mtk_mutex *mutex,
+ struct mmsys_cmdq_cmd *cmd);
void mtk_mutex_remove_comp(struct mtk_mutex *mutex,
enum mtk_ddp_comp_id id);
void mtk_mutex_unprepare(struct mtk_mutex *mutex);
--
2.18.0
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