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Subject[PATCH v3 11/27] venus: core,helpers: add two more clocks found in Venus 4xx
Date
Add two more clocks for Venus 4xx in core structure and create
a new power enable function to handle it for 3xx/4xx versions.

Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
---
drivers/media/platform/qcom/venus/core.h | 4 +++
drivers/media/platform/qcom/venus/helpers.c | 51 +++++++++++++++++++++++++++++
drivers/media/platform/qcom/venus/helpers.h | 2 ++
drivers/media/platform/qcom/venus/vdec.c | 44 ++++++++++++++++++++-----
drivers/media/platform/qcom/venus/venc.c | 44 ++++++++++++++++++++-----
5 files changed, 129 insertions(+), 16 deletions(-)

diff --git a/drivers/media/platform/qcom/venus/core.h b/drivers/media/platform/qcom/venus/core.h
index 8d3e150800c9..2bf8839784fa 100644
--- a/drivers/media/platform/qcom/venus/core.h
+++ b/drivers/media/platform/qcom/venus/core.h
@@ -65,6 +65,8 @@ struct venus_format {
* @clks: an array of struct clk pointers
* @core0_clk: a struct clk pointer for core0
* @core1_clk: a struct clk pointer for core1
+ * @core0_bus_clk: a struct clk pointer for core0 bus clock
+ * @core1_bus_clk: a struct clk pointer for core1 bus clock
* @vdev_dec: a reference to video device structure for decoder instances
* @vdev_enc: a reference to video device structure for encoder instances
* @v4l2_dev: a holder for v4l2 device structure
@@ -94,6 +96,8 @@ struct venus_core {
struct clk *clks[VIDC_CLKS_NUM_MAX];
struct clk *core0_clk;
struct clk *core1_clk;
+ struct clk *core0_bus_clk;
+ struct clk *core1_bus_clk;
struct video_device *vdev_dec;
struct video_device *vdev_enc;
struct v4l2_device v4l2_dev;
diff --git a/drivers/media/platform/qcom/venus/helpers.c b/drivers/media/platform/qcom/venus/helpers.c
index d9065cc8a7d3..228084e72fb7 100644
--- a/drivers/media/platform/qcom/venus/helpers.c
+++ b/drivers/media/platform/qcom/venus/helpers.c
@@ -13,6 +13,7 @@
*
*/
#include <linux/clk.h>
+#include <linux/iopoll.h>
#include <linux/list.h>
#include <linux/mutex.h>
#include <linux/pm_runtime.h>
@@ -24,6 +25,7 @@
#include "core.h"
#include "helpers.h"
#include "hfi_helper.h"
+#include "hfi_venus_io.h"

struct intbuf {
struct list_head list;
@@ -781,3 +783,52 @@ void venus_helper_init_instance(struct venus_inst *inst)
}
}
EXPORT_SYMBOL_GPL(venus_helper_init_instance);
+
+int venus_helper_power_enable(struct venus_core *core, u32 session_type,
+ bool enable)
+{
+ void __iomem *ctrl, *stat;
+ u32 val;
+ int ret;
+
+ if (!IS_V3(core) && !IS_V4(core))
+ return 0;
+
+ if (IS_V3(core)) {
+ if (session_type == VIDC_SESSION_TYPE_DEC)
+ ctrl = core->base + WRAPPER_VDEC_VCODEC_POWER_CONTROL;
+ else
+ ctrl = core->base + WRAPPER_VENC_VCODEC_POWER_CONTROL;
+ if (enable)
+ writel(0, ctrl);
+ else
+ writel(1, ctrl);
+
+ return 0;
+ }
+
+ if (session_type == VIDC_SESSION_TYPE_DEC) {
+ ctrl = core->base + WRAPPER_VCODEC0_MMCC_POWER_CONTROL;
+ stat = core->base + WRAPPER_VCODEC0_MMCC_POWER_STATUS;
+ } else {
+ ctrl = core->base + WRAPPER_VCODEC1_MMCC_POWER_CONTROL;
+ stat = core->base + WRAPPER_VCODEC1_MMCC_POWER_STATUS;
+ }
+
+ if (enable) {
+ writel(0, ctrl);
+
+ ret = readl_poll_timeout(stat, val, val & BIT(1), 1, 100);
+ if (ret)
+ return ret;
+ } else {
+ writel(1, ctrl);
+
+ ret = readl_poll_timeout(stat, val, !(val & BIT(1)), 1, 100);
+ if (ret)
+ return ret;
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(venus_helper_power_enable);
diff --git a/drivers/media/platform/qcom/venus/helpers.h b/drivers/media/platform/qcom/venus/helpers.h
index 971392be5df5..0e64aa95624a 100644
--- a/drivers/media/platform/qcom/venus/helpers.h
+++ b/drivers/media/platform/qcom/venus/helpers.h
@@ -43,4 +43,6 @@ int venus_helper_set_color_format(struct venus_inst *inst, u32 fmt);
void venus_helper_acquire_buf_ref(struct vb2_v4l2_buffer *vbuf);
void venus_helper_release_buf_ref(struct venus_inst *inst, unsigned int idx);
void venus_helper_init_instance(struct venus_inst *inst);
+int venus_helper_power_enable(struct venus_core *core, u32 session_type,
+ bool enable);
#endif
diff --git a/drivers/media/platform/qcom/venus/vdec.c b/drivers/media/platform/qcom/venus/vdec.c
index 261a51adeef2..3cf243ddcdb8 100644
--- a/drivers/media/platform/qcom/venus/vdec.c
+++ b/drivers/media/platform/qcom/venus/vdec.c
@@ -1081,12 +1081,18 @@ static int vdec_probe(struct platform_device *pdev)
if (!core)
return -EPROBE_DEFER;

- if (core->res->hfi_version == HFI_VERSION_3XX) {
+ if (IS_V3(core) || IS_V4(core)) {
core->core0_clk = devm_clk_get(dev, "core");
if (IS_ERR(core->core0_clk))
return PTR_ERR(core->core0_clk);
}

+ if (IS_V4(core)) {
+ core->core0_bus_clk = devm_clk_get(dev, "bus");
+ if (IS_ERR(core->core0_bus_clk))
+ return PTR_ERR(core->core0_bus_clk);
+ }
+
platform_set_drvdata(pdev, core);

vdev = video_device_alloc();
@@ -1131,15 +1137,21 @@ static int vdec_remove(struct platform_device *pdev)
static __maybe_unused int vdec_runtime_suspend(struct device *dev)
{
struct venus_core *core = dev_get_drvdata(dev);
+ int ret;

- if (core->res->hfi_version == HFI_VERSION_1XX)
+ if (IS_V1(core))
return 0;

- writel(0, core->base + WRAPPER_VDEC_VCODEC_POWER_CONTROL);
+ ret = venus_helper_power_enable(core, VIDC_SESSION_TYPE_DEC, true);
+
+ if (IS_V4(core))
+ clk_disable_unprepare(core->core0_bus_clk);
+
clk_disable_unprepare(core->core0_clk);
- writel(1, core->base + WRAPPER_VDEC_VCODEC_POWER_CONTROL);

- return 0;
+ ret |= venus_helper_power_enable(core, VIDC_SESSION_TYPE_DEC, false);
+
+ return ret;
}

static __maybe_unused int vdec_runtime_resume(struct device *dev)
@@ -1147,13 +1159,29 @@ static __maybe_unused int vdec_runtime_resume(struct device *dev)
struct venus_core *core = dev_get_drvdata(dev);
int ret;

- if (core->res->hfi_version == HFI_VERSION_1XX)
+ if (IS_V1(core))
return 0;

- writel(0, core->base + WRAPPER_VDEC_VCODEC_POWER_CONTROL);
+ ret = venus_helper_power_enable(core, VIDC_SESSION_TYPE_DEC, true);
+ if (ret)
+ return ret;
+
ret = clk_prepare_enable(core->core0_clk);
- writel(1, core->base + WRAPPER_VDEC_VCODEC_POWER_CONTROL);
+ if (ret)
+ goto err_power_disable;
+
+ if (IS_V4(core))
+ ret = clk_prepare_enable(core->core0_bus_clk);

+ if (ret)
+ goto err_unprepare_core0;
+
+ return venus_helper_power_enable(core, VIDC_SESSION_TYPE_DEC, false);
+
+err_unprepare_core0:
+ clk_disable_unprepare(core->core0_clk);
+err_power_disable:
+ venus_helper_power_enable(core, VIDC_SESSION_TYPE_DEC, false);
return ret;
}

diff --git a/drivers/media/platform/qcom/venus/venc.c b/drivers/media/platform/qcom/venus/venc.c
index 947001170a77..2cd7b342b208 100644
--- a/drivers/media/platform/qcom/venus/venc.c
+++ b/drivers/media/platform/qcom/venus/venc.c
@@ -1225,12 +1225,18 @@ static int venc_probe(struct platform_device *pdev)
if (!core)
return -EPROBE_DEFER;

- if (core->res->hfi_version == HFI_VERSION_3XX) {
+ if (IS_V3(core) || IS_V4(core)) {
core->core1_clk = devm_clk_get(dev, "core");
if (IS_ERR(core->core1_clk))
return PTR_ERR(core->core1_clk);
}

+ if (IS_V4(core)) {
+ core->core1_bus_clk = devm_clk_get(dev, "bus");
+ if (IS_ERR(core->core1_bus_clk))
+ return PTR_ERR(core->core1_bus_clk);
+ }
+
platform_set_drvdata(pdev, core);

vdev = video_device_alloc();
@@ -1275,15 +1281,21 @@ static int venc_remove(struct platform_device *pdev)
static __maybe_unused int venc_runtime_suspend(struct device *dev)
{
struct venus_core *core = dev_get_drvdata(dev);
+ int ret;

- if (core->res->hfi_version == HFI_VERSION_1XX)
+ if (IS_V1(core))
return 0;

- writel(0, core->base + WRAPPER_VENC_VCODEC_POWER_CONTROL);
+ ret = venus_helper_power_enable(core, VIDC_SESSION_TYPE_ENC, true);
+
+ if (IS_V4(core))
+ clk_disable_unprepare(core->core1_bus_clk);
+
clk_disable_unprepare(core->core1_clk);
- writel(1, core->base + WRAPPER_VENC_VCODEC_POWER_CONTROL);

- return 0;
+ ret |= venus_helper_power_enable(core, VIDC_SESSION_TYPE_ENC, false);
+
+ return ret;
}

static __maybe_unused int venc_runtime_resume(struct device *dev)
@@ -1291,13 +1303,29 @@ static __maybe_unused int venc_runtime_resume(struct device *dev)
struct venus_core *core = dev_get_drvdata(dev);
int ret;

- if (core->res->hfi_version == HFI_VERSION_1XX)
+ if (IS_V1(core))
return 0;

- writel(0, core->base + WRAPPER_VENC_VCODEC_POWER_CONTROL);
+ ret = venus_helper_power_enable(core, VIDC_SESSION_TYPE_ENC, true);
+ if (ret)
+ return ret;
+
ret = clk_prepare_enable(core->core1_clk);
- writel(1, core->base + WRAPPER_VENC_VCODEC_POWER_CONTROL);
+ if (ret)
+ goto err_power_disable;
+
+ if (IS_V4(core))
+ ret = clk_prepare_enable(core->core1_bus_clk);

+ if (ret)
+ goto err_unprepare_core1;
+
+ return venus_helper_power_enable(core, VIDC_SESSION_TYPE_ENC, false);
+
+err_unprepare_core1:
+ clk_disable_unprepare(core->core1_clk);
+err_power_disable:
+ venus_helper_power_enable(core, VIDC_SESSION_TYPE_ENC, false);
return ret;
}

--
2.14.1
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