diff options
| -rw-r--r-- | drivers/soc/mediatek/mtk-mutex.c | 45 | ||||
| -rw-r--r-- | include/linux/soc/mediatek/mtk-mutex.h | 2 |
2 files changed, 46 insertions, 1 deletions
diff --git a/drivers/soc/mediatek/mtk-mutex.c b/drivers/soc/mediatek/mtk-mutex.c index a566f4cf6372..fa8e0ba38803 100644 --- a/drivers/soc/mediatek/mtk-mutex.c +++ b/drivers/soc/mediatek/mtk-mutex.c @@ -7,10 +7,12 @@ #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 MT2701_MUTEX0_MOD0 0x2c #define MT2701_MUTEX0_SOF0 0x30 @@ -218,6 +220,8 @@ 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] = { @@ -632,6 +636,30 @@ void mtk_mutex_enable(struct mtk_mutex *mutex) } EXPORT_SYMBOL_GPL(mtk_mutex_enable); +int mtk_mutex_enable_by_cmdq(struct mtk_mutex *mutex, void *pkt) +{ + struct mtk_mutex_ctx *mtx = container_of(mutex, struct mtk_mutex_ctx, + mutex[mutex->id]); +#if IS_REACHABLE(CONFIG_MTK_CMDQ) + struct cmdq_pkt *cmdq_pkt = (struct cmdq_pkt *)pkt; + + WARN_ON(&mtx->mutex[mutex->id] != mutex); + + if (!mtx->cmdq_reg.size) { + dev_err(mtx->dev, "mediatek,gce-client-reg hasn't been set"); + return -EINVAL; + } + + cmdq_pkt_write(cmdq_pkt, mtx->cmdq_reg.subsys, + mtx->addr + DISP_REG_MUTEX_EN(mutex->id), 1); + return 0; +#else + dev_err(mtx->dev, "Not support for enable MUTEX by CMDQ"); + return -ENODEV; +#endif +} +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, @@ -722,8 +750,11 @@ static int mtk_mutex_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; struct mtk_mutex_ctx *mtx; - struct resource *regs; + struct resource *regs, addr; int i; +#if IS_REACHABLE(CONFIG_MTK_CMDQ) + int ret; +#endif mtx = devm_kzalloc(dev, sizeof(*mtx), GFP_KERNEL); if (!mtx) @@ -743,6 +774,18 @@ static int mtk_mutex_probe(struct platform_device *pdev) } } + if (of_address_to_resource(dev->of_node, 0, &addr) < 0) { + dev_err(dev, "Failed to get addr\n"); + return -EINVAL; + } + mtx->addr = addr.start; + +#if IS_REACHABLE(CONFIG_MTK_CMDQ) + ret = cmdq_dev_get_client_reg(dev, &mtx->cmdq_reg, 0); + if (ret) + dev_dbg(dev, "No mediatek,gce-client-reg!\n"); +#endif + 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 2ddab9d2b85d..a0f4f51a3b45 100644 --- a/include/linux/soc/mediatek/mtk-mutex.h +++ b/include/linux/soc/mediatek/mtk-mutex.h @@ -35,6 +35,8 @@ int mtk_mutex_prepare(struct mtk_mutex *mutex); void mtk_mutex_add_comp(struct mtk_mutex *mutex, enum mtk_ddp_comp_id id); void mtk_mutex_enable(struct mtk_mutex *mutex); +int mtk_mutex_enable_by_cmdq(struct mtk_mutex *mutex, + void *pkt); void mtk_mutex_disable(struct mtk_mutex *mutex); void mtk_mutex_remove_comp(struct mtk_mutex *mutex, enum mtk_ddp_comp_id id); |