diff options
| -rw-r--r-- | Documentation/devicetree/bindings/cnss/icnss.txt | 2 | ||||
| -rw-r--r-- | drivers/soc/qcom/icnss.c | 63 |
2 files changed, 50 insertions, 15 deletions
diff --git a/Documentation/devicetree/bindings/cnss/icnss.txt b/Documentation/devicetree/bindings/cnss/icnss.txt index c801e8486f87..700a8f7b077e 100644 --- a/Documentation/devicetree/bindings/cnss/icnss.txt +++ b/Documentation/devicetree/bindings/cnss/icnss.txt @@ -28,6 +28,7 @@ Optional properties: - qcom,icnss-vadc: VADC handle for vph_pwr read APIs. - qcom,icnss-adc_tm: VADC handle for vph_pwr notification APIs. - qcom,smmu-s1-bypass: Boolean context flag to set SMMU to S1 bypass + - qcom,wlan-msa-fixed-region: phandle, specifier pairs to children of /reserved-memory Example: @@ -54,6 +55,7 @@ Example: <0 140 0 /* CE10 */ >, <0 141 0 /* CE11 */ >; qcom,wlan-msa-memory = <0x200000>; + qcom,wlan-msa-fixed-region = <&wlan_msa_mem>; qcom,smmu-s1-bypass; vdd-0.8-cx-mx-supply = <&pm8998_l5>; qcom,vdd-0.8-cx-mx-config = <800000 800000 2400 1000>; diff --git a/drivers/soc/qcom/icnss.c b/drivers/soc/qcom/icnss.c index 07fe5720c4d8..c74cd3b814cd 100644 --- a/drivers/soc/qcom/icnss.c +++ b/drivers/soc/qcom/icnss.c @@ -13,6 +13,7 @@ #define pr_fmt(fmt) "icnss: " fmt #include <asm/dma-iommu.h> +#include <linux/of_address.h> #include <linux/clk.h> #include <linux/iommu.h> #include <linux/export.h> @@ -4298,6 +4299,9 @@ static int icnss_probe(struct platform_device *pdev) int i; struct device *dev = &pdev->dev; struct icnss_priv *priv; + const __be32 *addrp; + u64 prop_size = 0; + struct device_node *np; if (penv) { icnss_pr_err("Driver is already initialized\n"); @@ -4369,24 +4373,53 @@ static int icnss_probe(struct platform_device *pdev) } } - ret = of_property_read_u32(dev->of_node, "qcom,wlan-msa-memory", - &priv->msa_mem_size); + np = of_parse_phandle(dev->of_node, + "qcom,wlan-msa-fixed-region", 0); + if (np) { + addrp = of_get_address(np, 0, &prop_size, NULL); + if (!addrp) { + icnss_pr_err("Failed to get assigned-addresses or property\n"); + ret = -EINVAL; + goto out; + } - if (ret || priv->msa_mem_size == 0) { - icnss_pr_err("Fail to get MSA Memory Size: %u, ret: %d\n", - priv->msa_mem_size, ret); - goto out; - } + priv->msa_pa = of_translate_address(np, addrp); + if (priv->msa_pa == OF_BAD_ADDR) { + icnss_pr_err("Failed to translate MSA PA from device-tree\n"); + ret = -EINVAL; + goto out; + } - priv->msa_va = dmam_alloc_coherent(&pdev->dev, priv->msa_mem_size, - &priv->msa_pa, GFP_KERNEL); - if (!priv->msa_va) { - icnss_pr_err("DMA alloc failed for MSA\n"); - ret = -ENOMEM; - goto out; + priv->msa_va = memremap(priv->msa_pa, + (unsigned long)prop_size, MEMREMAP_WT); + if (!priv->msa_va) { + icnss_pr_err("MSA PA ioremap failed: phy addr: %pa\n", + &priv->msa_pa); + ret = -EINVAL; + goto out; + } + priv->msa_mem_size = prop_size; + } else { + ret = of_property_read_u32(dev->of_node, "qcom,wlan-msa-memory", + &priv->msa_mem_size); + if (ret || priv->msa_mem_size == 0) { + icnss_pr_err("Fail to get MSA Memory Size: %u ret: %d\n", + priv->msa_mem_size, ret); + goto out; + } + + priv->msa_va = dmam_alloc_coherent(&pdev->dev, + priv->msa_mem_size, &priv->msa_pa, GFP_KERNEL); + + if (!priv->msa_va) { + icnss_pr_err("DMA alloc failed for MSA\n"); + ret = -ENOMEM; + goto out; + } } - icnss_pr_dbg("MSA pa: %pa, MSA va: 0x%p\n", &priv->msa_pa, - priv->msa_va); + + icnss_pr_dbg("MSA pa: %pa, MSA va: 0x%p MSA Memory Size: 0x%x\n", + &priv->msa_pa, (void *)priv->msa_va, priv->msa_mem_size); res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "smmu_iova_base"); |