diff options
Diffstat (limited to 'drivers/gpu/drm/msm/adreno')
| -rw-r--r-- | drivers/gpu/drm/msm/adreno/adreno_device.c | 40 |
1 files changed, 39 insertions, 1 deletions
diff --git a/drivers/gpu/drm/msm/adreno/adreno_device.c b/drivers/gpu/drm/msm/adreno/adreno_device.c index 8d54cb764f77..5fa51a9abc20 100644 --- a/drivers/gpu/drm/msm/adreno/adreno_device.c +++ b/drivers/gpu/drm/msm/adreno/adreno_device.c @@ -189,6 +189,43 @@ static const struct { { "qcom,gpu-quirk-fault-detect-mask", ADRENO_QUIRK_FAULT_DETECT_MASK }, }; +static int find_chipid(struct device *dev, u32 *chipid) +{ + struct device_node *node = dev->of_node; + const char *compat; + int ret; + + /* first search the compat strings for qcom,adreno-XYZ.W: */ + ret = of_property_read_string_index(node, "compatible", 0, &compat); + if (ret == 0) { + unsigned rev, patch; + + if (sscanf(compat, "qcom,adreno-%u.%u", &rev, &patch) == 2) { + *chipid = 0; + *chipid |= (rev / 100) << 24; /* core */ + rev %= 100; + *chipid |= (rev / 10) << 16; /* major */ + rev %= 10; + *chipid |= rev << 8; /* minor */ + *chipid |= patch; + + return 0; + } + } + + /* and if that fails, fall back to legacy "qcom,chipid" property: */ + ret = of_property_read_u32(node, "qcom,chipid", chipid); + if (ret) + return ret; + + dev_warn(dev, "Using legacy qcom,chipid binding!\n"); + dev_warn(dev, "Use compatible qcom,adreno-%u%u%u.%u instead.\n", + (*chipid >> 24) & 0xff, (*chipid >> 16) & 0xff, + (*chipid >> 8) & 0xff, *chipid & 0xff); + + return 0; +} + static int adreno_bind(struct device *dev, struct device *master, void *data) { static struct adreno_platform_config config = {}; @@ -196,7 +233,7 @@ static int adreno_bind(struct device *dev, struct device *master, void *data) u32 val; int ret, i; - ret = of_property_read_u32(node, "qcom,chipid", &val); + ret = find_chipid(dev, &val); if (ret) { dev_err(dev, "could not find chipid: %d\n", ret); return ret; @@ -262,6 +299,7 @@ static int adreno_remove(struct platform_device *pdev) } static const struct of_device_id dt_match[] = { + { .compatible = "qcom,adreno" }, { .compatible = "qcom,adreno-3xx" }, /* for backwards compat w/ downstream kgsl DT files: */ { .compatible = "qcom,kgsl-3d0" }, |