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| author | Chengci.Xu <chengci.xu@mediatek.com> | 2022-08-17 20:46:06 +0800 |
|---|---|---|
| committer | Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> | 2022-08-30 20:54:04 +0300 |
| commit | 8c1561edc0692fa8e321daf2777c3c32454b5748 (patch) | |
| tree | aa5dcd53dbea0befb8411054f74b0c0067eed5aa /drivers/memory | |
| parent | 9d9fde47430298455544b283cffa390c40d58bfc (diff) | |
| download | linux-8c1561edc0692fa8e321daf2777c3c32454b5748.tar.bz2 | |
memory: mtk-smi: Add return value for configure port function
In MT8188, the register to enable/disable IOMMU can only be configured
in secure world by SMC call. We should add a return value for configure
port function for preparation because SMC call may return an error result.
Signed-off-by: Chengci.Xu <chengci.xu@mediatek.com>
Reviewed-by: Yong Wu <yong.wu@mediatek.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20220817124608.10062-3-chengci.xu@mediatek.com
Diffstat (limited to 'drivers/memory')
| -rw-r--r-- | drivers/memory/mtk-smi.c | 20 |
1 files changed, 11 insertions, 9 deletions
diff --git a/drivers/memory/mtk-smi.c b/drivers/memory/mtk-smi.c index d7cb7ead2ac7..7e97406ab4a3 100644 --- a/drivers/memory/mtk-smi.c +++ b/drivers/memory/mtk-smi.c @@ -127,7 +127,7 @@ struct mtk_smi_common_plat { struct mtk_smi_larb_gen { int port_in_larb[MTK_LARB_NR_MAX + 1]; - void (*config_port)(struct device *dev); + int (*config_port)(struct device *dev); unsigned int larb_direct_to_common_mask; unsigned int flags_general; const u8 (*ostd)[SMI_LARB_PORT_NR_MAX]; @@ -185,7 +185,7 @@ static const struct component_ops mtk_smi_larb_component_ops = { .unbind = mtk_smi_larb_unbind, }; -static void mtk_smi_larb_config_port_gen1(struct device *dev) +static int mtk_smi_larb_config_port_gen1(struct device *dev) { struct mtk_smi_larb *larb = dev_get_drvdata(dev); const struct mtk_smi_larb_gen *larb_gen = larb->larb_gen; @@ -214,23 +214,26 @@ static void mtk_smi_larb_config_port_gen1(struct device *dev) common->smi_ao_base + REG_SMI_SECUR_CON_ADDR(m4u_port_id)); } + return 0; } -static void mtk_smi_larb_config_port_mt8167(struct device *dev) +static int mtk_smi_larb_config_port_mt8167(struct device *dev) { struct mtk_smi_larb *larb = dev_get_drvdata(dev); writel(*larb->mmu, larb->base + MT8167_SMI_LARB_MMU_EN); + return 0; } -static void mtk_smi_larb_config_port_mt8173(struct device *dev) +static int mtk_smi_larb_config_port_mt8173(struct device *dev) { struct mtk_smi_larb *larb = dev_get_drvdata(dev); writel(*larb->mmu, larb->base + MT8173_SMI_LARB_MMU_EN); + return 0; } -static void mtk_smi_larb_config_port_gen2_general(struct device *dev) +static int mtk_smi_larb_config_port_gen2_general(struct device *dev) { struct mtk_smi_larb *larb = dev_get_drvdata(dev); u32 reg, flags_general = larb->larb_gen->flags_general; @@ -238,7 +241,7 @@ static void mtk_smi_larb_config_port_gen2_general(struct device *dev) int i; if (BIT(larb->larbid) & larb->larb_gen->larb_direct_to_common_mask) - return; + return 0; if (MTK_SMI_CAPS(flags_general, MTK_SMI_FLAG_THRT_UPDATE)) { reg = readl_relaxed(larb->base + SMI_LARB_CMD_THRT_CON); @@ -259,6 +262,7 @@ static void mtk_smi_larb_config_port_gen2_general(struct device *dev) reg |= BANK_SEL(larb->bank[i]); writel(reg, larb->base + SMI_LARB_NONSEC_CON(i)); } + return 0; } static const u8 mtk_smi_larb_mt8195_ostd[][SMI_LARB_PORT_NR_MAX] = { @@ -511,9 +515,7 @@ static int __maybe_unused mtk_smi_larb_resume(struct device *dev) mtk_smi_larb_sleep_ctrl_disable(larb); /* Configure the basic setting for this larb */ - larb_gen->config_port(dev); - - return 0; + return larb_gen->config_port(dev); } static int __maybe_unused mtk_smi_larb_suspend(struct device *dev) |