diff options
| author | Tom Rini <[email protected]> | 2024-10-21 17:52:40 -0600 |
|---|---|---|
| committer | Tom Rini <[email protected]> | 2024-10-21 17:52:40 -0600 |
| commit | 63a3dbb7b9e1c352c85b4fa6508f1c895e163458 (patch) | |
| tree | f3dc4bb569b5eb6ea3ee5c119556867c8a9cbcf0 /drivers | |
| parent | 33da135f7e186642921995a478bd2b2b02939a67 (diff) | |
| parent | 1b379f4a410c30a842184703e80079731d5cf139 (diff) | |
Merge patch series "Add AVS support for J721S2"
Manorit Chawdhry <[email protected]> says:
This series adds support for Adaptive voltage scaling on J721S2 device [0].
[0]: https://www.ti.com/lit/pdf/spruj28 (Section 5.2.4.1 AVS Support)
AVS Test for J721S2: https://gist.github.com/manorit2001/b2fd9f6764a863294d4aa0755c83c84f
Boot Test results: https://gist.github.com/manorit2001/d44e035552cb19aadeb0d928d5cb5f26
Link: https://lore.kernel.org/r/[email protected]
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/misc/k3_avs.c | 40 | ||||
| -rw-r--r-- | drivers/power/pmic/Kconfig | 1 |
2 files changed, 40 insertions, 1 deletions
diff --git a/drivers/misc/k3_avs.c b/drivers/misc/k3_avs.c index 87471cc3b16..99a18a109b7 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 +370,32 @@ 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_by_compatible(ofnode_null(), "ti,am654-rproc"); + if (!ofnode_valid(node)) + return -ENODEV; + + i = ofnode_stringlist_search(node, "clock-names", "core"); + if (i < 0) + return -ENODEV; + + ret = ofnode_parse_phandle_with_args(node, "clocks", + "#clock-cells", + 0, i, + &phandle_args); + if (ret) { + printf("Couldn't get the clock node, ret = %d\n", ret); + 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", @@ -391,7 +420,10 @@ static int k3_avs_probe(struct udevice *dev) if (vd->flags & VD_FLAG_INIT_DONE) continue; - k3_avs_program_voltage(priv, vd, vd->opp); + ret = k3_avs_program_voltage(priv, vd, vd->opp); + if (ret) + dev_warn(dev, "Could not program AVS voltage for VD%d, vd->opp=%d, ret=%d\n", + vd->id, vd->opp, ret); } if (!device_is_compatible(priv->dev, "ti,am654-avs")) @@ -460,6 +492,12 @@ 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 = { diff --git a/drivers/power/pmic/Kconfig b/drivers/power/pmic/Kconfig index 562c1a3b122..bbcbcee4c35 100644 --- a/drivers/power/pmic/Kconfig +++ b/drivers/power/pmic/Kconfig @@ -394,6 +394,7 @@ config SPL_PMIC_LP87565 config PMIC_TPS65941 bool "Enable driver for Texas Instruments TPS65941 PMIC" + depends on DM_PMIC help The TPS65941 is a PMIC containing a bunch of SMPS & LDOs. This driver binds the pmic children. |