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| author |   Dikshita Agarwal <dikshita@codeaurora.org> | 2021-04-02 12:06:41 +0200 |
|---|---|---|
| committer |   Mauro Carvalho Chehab <mchehab+huawei@kernel.org> | 2021-04-06 15:55:58 +0200 |
| commit | 4b0b6e147dc98a5985a9060b612041023896ec2b (patch) | |
| tree | dc26c3ce9dd831b8b5f6e86a33a2932bc23702ee /drivers/media/platform | |
| parent | media: venus: core,pm: Vote for min clk freq during venus boot (diff) | |
| download | linux-dev-4b0b6e147dc98a5985a9060b612041023896ec2b.tar.xz linux-dev-4b0b6e147dc98a5985a9060b612041023896ec2b.zip | |
media: venus: hfi: Add 6xx AXI halt logic
This patch takes the downstream AXI halt routine and applies it when
IS_V6() is true.
bod: Converted to readl_poll_timeout()
Removed poll timeout for LPI register, testing showed the value
would always timeout and work, so the polling did nothing of value.
Signed-off-by: Dikshita Agarwal <dikshita@codeaurora.org>
Co-developed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Diffstat (limited to 'drivers/media/platform')
| -rw-r--r-- | drivers/media/platform/qcom/venus/hfi_venus.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/drivers/media/platform/qcom/venus/hfi_venus.c b/drivers/media/platform/qcom/venus/hfi_venus.c index 24cf20f76e7f..cebb20cf371f 100644 --- a/drivers/media/platform/qcom/venus/hfi_venus.c +++ b/drivers/media/platform/qcom/venus/hfi_venus.c @@ -541,10 +541,42 @@ static int venus_halt_axi(struct venus_hfi_device *hdev) { void __iomem *wrapper_base = hdev->core->wrapper_base; void __iomem *vbif_base = hdev->core->vbif_base; + void __iomem *cpu_cs_base = hdev->core->cpu_cs_base; + void __iomem *aon_base = hdev->core->aon_base; struct device *dev = hdev->core->dev; u32 val; + u32 mask_val; int ret; + if (IS_V6(hdev->core)) { + writel(0x3, cpu_cs_base + CPU_CS_X2RPMH_V6); + + writel(0x1, aon_base + AON_WRAPPER_MVP_NOC_LPI_CONTROL); + ret = readl_poll_timeout(aon_base + AON_WRAPPER_MVP_NOC_LPI_STATUS, + val, + val & BIT(0), + POLL_INTERVAL_US, + VBIF_AXI_HALT_ACK_TIMEOUT_US); + if (ret) + return -ETIMEDOUT; + + mask_val = (BIT(2) | BIT(1) | BIT(0)); + writel(mask_val, wrapper_base + WRAPPER_DEBUG_BRIDGE_LPI_CONTROL_V6); + + writel(0x00, wrapper_base + WRAPPER_DEBUG_BRIDGE_LPI_CONTROL_V6); + ret = readl_poll_timeout(wrapper_base + WRAPPER_DEBUG_BRIDGE_LPI_STATUS_V6, + val, + val == 0, + POLL_INTERVAL_US, + VBIF_AXI_HALT_ACK_TIMEOUT_US); + + if (ret) { + dev_err(dev, "DBLP Release: lpi_status %x\n", val); + return -ETIMEDOUT; + } + return 0; + } + if (IS_V4(hdev->core)) { val = readl(wrapper_base + WRAPPER_CPU_AXI_HALT); val |= WRAPPER_CPU_AXI_HALT_HALT; |