struct mutex lock;
struct miscdevice miscdev;
struct reset_control *rst;
+ struct reset_control *rst_mc;
struct gen_pool *iram_pool;
struct completion decode_completion;
struct clk *clk;
* We rely on the VDE registers reset value, otherwise VDE
* causes bus lockup.
*/
+ ret = reset_control_assert(vde->rst_mc);
+ if (ret) {
+ dev_err(dev, "DEC start: Failed to assert MC reset: %d\n",
+ ret);
+ goto put_runtime_pm;
+ }
+
ret = reset_control_reset(vde->rst);
if (ret) {
- dev_err(dev, "Failed to reset HW: %d\n", ret);
+ dev_err(dev, "DEC start: Failed to reset HW: %d\n", ret);
+ goto put_runtime_pm;
+ }
+
+ ret = reset_control_deassert(vde->rst_mc);
+ if (ret) {
+ dev_err(dev, "DEC start: Failed to deassert MC reset: %d\n",
+ ret);
goto put_runtime_pm;
}
ret = timeout;
}
- err = reset_control_assert(vde->rst);
- if (err)
- dev_err(dev, "Failed to assert HW reset: %d\n", err);
+ /*
+ * At first reset memory client to avoid resetting VDE HW in the
+ * middle of DMA which could result into memory corruption or hang
+ * the whole system.
+ */
+ err = reset_control_assert(vde->rst_mc);
+ if (!err) {
+ err = reset_control_assert(vde->rst);
+ if (err)
+ dev_err(dev,
+ "DEC end: Failed to assert HW reset: %d\n",
+ err);
+ } else {
+ dev_err(dev, "DEC end: Failed to assert MC reset: %d\n", err);
+ }
put_runtime_pm:
pm_runtime_mark_last_busy(dev);
return err;
}
+ vde->rst_mc = devm_reset_control_get_optional(dev, "mc");
+ if (IS_ERR(vde->rst_mc)) {
+ err = PTR_ERR(vde->rst_mc);
+ dev_err(dev, "Could not get MC reset %d\n", err);
+ return err;
+ }
+
irq = platform_get_irq_byname(pdev, "sync-token");
if (irq < 0)
return irq;