[PATCH v3 4/7] drivers: misc: k3_avs: Extract MPU clk and dev ID from DT
Manorit Chawdhry
m-chawdhry at ti.com
Tue Aug 13 08:10:44 CEST 2024
Different devices have different MPU clk and dev ID. Currently it had
been hardcoded. Move it to DT based extraction.
Signed-off-by: Manorit Chawdhry <m-chawdhry at ti.com>
---
drivers/misc/k3_avs.c | 37 +++++++++++++++++++++++++++++++++++++
1 file changed, 37 insertions(+)
diff --git a/drivers/misc/k3_avs.c b/drivers/misc/k3_avs.c
index 568cf5b20d51..f94eee5b1c64 100644
--- a/drivers/misc/k3_avs.c
+++ b/drivers/misc/k3_avs.c
@@ -352,6 +352,9 @@ static int k3_avs_probe(struct udevice *dev)
struct k3_avs_privdata *priv;
struct vd_data *vd;
int ret;
+ ofnode node;
+ struct ofnode_phandle_args phandle_args;
+ int i = 0;
priv = dev_get_priv(dev);
priv->dev = dev;
@@ -367,6 +370,34 @@ static int k3_avs_probe(struct udevice *dev)
return -ENODEV;
for (vd = priv->vd_config->vds; vd->id >= 0; vd++) {
+ /* Get the clock and dev id for Jacinto platforms */
+ if (vd->id == J721E_VDD_MPU) {
+ node = ofnode_get_aliases_node("remoteproc1");
+ if (!ofnode_valid(node))
+ return -ENODEV;
+
+ i = ofnode_stringlist_search(node, "clock-names", "core");
+ if (i < 0)
+ return -ENODEV;
+
+ debug("%s: i: %d\n", __func__, i);
+
+ ret = ofnode_parse_phandle_with_args(node, "clocks",
+ "#clock-cells",
+ 0, i,
+ &phandle_args);
+ if (ret) {
+ printf("Couldn't get the clock node\n");
+ return ret;
+ }
+
+ vd->dev_id = phandle_args.args[0];
+ vd->clk_id = phandle_args.args[1];
+
+ debug("%s: MPU dev_id: %d, clk_id: %d", __func__,
+ vd->dev_id, vd->clk_id);
+ }
+
if (!(readl(AM6_VTM_DEVINFO(vd->id)) &
AM6_VTM_AVS0_SUPPORTED)) {
dev_warn(dev, "AVS-class 0 not supported for VD%d\n",
@@ -463,6 +494,12 @@ static struct vd_data j721e_vd_data[] = {
{
.id = J721E_VDD_MPU,
.opp = AM6_OPP_NOM,
+ /*
+ * XXX: DEPRECATION WARNING: Around 2 u-boot versions
+ *
+ * These values will be picked up from DT, kept for backward
+ * compatibility
+ */
.dev_id = 202, /* J721E_DEV_A72SS0_CORE0 */
.clk_id = 2, /* ARM clock */
.opps = {
--
2.46.0
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