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authorDikshita Agarwal <dikshita@codeaurora.org>2021-04-02 12:06:41 +0200
committerMauro Carvalho Chehab <mchehab+huawei@kernel.org>2021-04-06 15:55:58 +0200
commit4b0b6e147dc98a5985a9060b612041023896ec2b (patch)
treedc26c3ce9dd831b8b5f6e86a33a2932bc23702ee
parentc22b1a29497c3919b86dc2c87292d24b5965e4a5 (diff)
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>
-rw-r--r--drivers/media/platform/qcom/venus/hfi_venus.c32
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;

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