[PATCH v4 7/8] reset: imx8mp-audiomix: Add support for DSP run/stall

[Daniel Baluta <daniel.baluta@nxp.com>]

We can Run/Stall the DSP via audio block control bits found in audiomix.
Implement this functionality using the reset controller and use assert
for Stall and deassert for Run.

Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Daniel Baluta <daniel.baluta@nxp.com>
---
 drivers/reset/reset-imx8mp-audiomix.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/reset/reset-imx8mp-audiomix.c b/drivers/reset/reset-imx8mp-audiomix.c
index 04ad27aca806..6b357adfe646 100644
--- a/drivers/reset/reset-imx8mp-audiomix.c
+++ b/drivers/reset/reset-imx8mp-audiomix.c
@@ -17,6 +17,9 @@
 #define IMX8MP_AUDIOMIX_EARC_RESET_MASK		BIT(1)
 #define IMX8MP_AUDIOMIX_EARC_PHY_RESET_MASK	BIT(2)
 
+#define IMX8MP_AUDIOMIX_DSP_RUNSTALL_OFFSET	0x108
+#define IMX8MP_AUDIOMIX_DSP_RUNSTALL_MASK	BIT(5)
+
 struct imx8mp_reset_map {
 	unsigned int offset;
 	unsigned int mask;
@@ -34,6 +37,11 @@ static const struct imx8mp_reset_map reset_map[] = {
 		.mask	= IMX8MP_AUDIOMIX_EARC_PHY_RESET_MASK,
 		.active_low = true,
 	},
+	[IMX8MP_AUDIOMIX_DSP_RUNSTALL] = {
+		.offset	= IMX8MP_AUDIOMIX_DSP_RUNSTALL_OFFSET,
+		.mask	= IMX8MP_AUDIOMIX_DSP_RUNSTALL_MASK,
+		.active_low = false,
+	},
 };
 
 struct imx8mp_audiomix_reset {
-- 
2.43.0