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| author | Stanimir Varbanov <stanimir.varbanov@linaro.org> | 2018-07-05 16:03:41 +0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab+samsung@kernel.org> | 2018-07-25 15:44:52 +0300 |
| commit | eb72356e7de23d744d89e8c9408607c0fd71368c (patch) | |
| tree | c0c8c1719e24933504b3e70c81cd4255a36a297b | |
| parent | 5f43f90a99ade6db0c05e2bb45883256649c9164 (diff) | |
| download | linux-eb72356e7de23d744d89e8c9408607c0fd71368c.tar.xz | |
media: venus: hfi_venus: add halt AXI support for Venus 4xx
Add AXI halt support for version 4xx by using venus wrapper
registers.
Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Reviewed-by: Tomasz Figa <tfiga@chromium.org>
Reviewed-by: Alexandre Courbot <acourbot@chromium.org>
Tested-by: Alexandre Courbot <acourbot@chromium.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
| -rw-r--r-- | drivers/media/platform/qcom/venus/hfi_venus.c | 18 | ||||
| -rw-r--r-- | drivers/media/platform/qcom/venus/hfi_venus_io.h | 2 |
2 files changed, 20 insertions, 0 deletions
diff --git a/drivers/media/platform/qcom/venus/hfi_venus.c b/drivers/media/platform/qcom/venus/hfi_venus.c index 734ce11b0ed0..784b3ad1a9f6 100644 --- a/drivers/media/platform/qcom/venus/hfi_venus.c +++ b/drivers/media/platform/qcom/venus/hfi_venus.c @@ -532,6 +532,24 @@ static int venus_halt_axi(struct venus_hfi_device *hdev) u32 val; int ret; + if (IS_V4(hdev->core)) { + val = venus_readl(hdev, WRAPPER_CPU_AXI_HALT); + val |= WRAPPER_CPU_AXI_HALT_HALT; + venus_writel(hdev, WRAPPER_CPU_AXI_HALT, val); + + ret = readl_poll_timeout(base + WRAPPER_CPU_AXI_HALT_STATUS, + val, + val & WRAPPER_CPU_AXI_HALT_STATUS_IDLE, + POLL_INTERVAL_US, + VBIF_AXI_HALT_ACK_TIMEOUT_US); + if (ret) { + dev_err(dev, "AXI bus port halt timeout\n"); + return ret; + } + + return 0; + } + /* Halt AXI and AXI IMEM VBIF Access */ val = venus_readl(hdev, VBIF_AXI_HALT_CTRL0); val |= VBIF_AXI_HALT_CTRL0_HALT_REQ; diff --git a/drivers/media/platform/qcom/venus/hfi_venus_io.h b/drivers/media/platform/qcom/venus/hfi_venus_io.h index d327b5cea334..c0b18de1e396 100644 --- a/drivers/media/platform/qcom/venus/hfi_venus_io.h +++ b/drivers/media/platform/qcom/venus/hfi_venus_io.h @@ -104,7 +104,9 @@ #define WRAPPER_CPU_CLOCK_CONFIG (WRAPPER_BASE + 0x2000) #define WRAPPER_CPU_AXI_HALT (WRAPPER_BASE + 0x2008) +#define WRAPPER_CPU_AXI_HALT_HALT BIT(16) #define WRAPPER_CPU_AXI_HALT_STATUS (WRAPPER_BASE + 0x200c) +#define WRAPPER_CPU_AXI_HALT_STATUS_IDLE BIT(24) #define WRAPPER_CPU_CGC_DIS (WRAPPER_BASE + 0x2010) #define WRAPPER_CPU_STATUS (WRAPPER_BASE + 0x2014) |