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msm: pci: Update VREG info fron DT

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Assign Voltage regulator max and min values from DT.

Change-Id: Ib1e58894b4498ed7f196cb548ca7bd170b5c3455
Signed-off-by: Ajay Prathi <aprathi@codeaurora.org>
This commit is contained in:
Ajay Prathi 2021-01-13 21:37:30 +05:30 • committed by Subramanian Ananthanarayanan
commit facf1631a4
1 changed files with 18 additions and 0 deletions
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18
drivers/pci/controller/pci-msm.c
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@ -173,6 +173,7 @@
#define MAX_PROP_SIZE (32)
#define MAX_RC_NAME_LEN (15)
#define MSM_PCIE_MAX_VREG (5)
#define MSM_PCIE_VREG_0P9 (2)
#define MSM_PCIE_MAX_CLK (18)
#define MSM_PCIE_MAX_PIPE_CLK (1)
#define MAX_RC_NUM (4)
@ -770,6 +771,7 @@ struct msm_pcie_dev_t {
struct msm_pcie_drv_info *drv_info;
struct work_struct drv_enable_pc_work;
struct work_struct drv_disable_pc_work;
int vreg_levels[3];
/* cache drv pc req from RC client, by default drv pc is enabled */
int drv_disable_pc_vote;
@ -5859,6 +5861,22 @@ static int msm_pcie_probe(struct platform_device *pdev)
memcpy(pcie_dev->pipe_reset, msm_pcie_pipe_reset_info[rc_idx],
sizeof(msm_pcie_pipe_reset_info[rc_idx]));
ret = of_property_read_u32_array(of_node,
"qcom,vreg-0.9-voltage-level",
(u32 *) pcie_dev->vreg_levels,
ARRAY_SIZE(pcie_dev->vreg_levels));
if (ret) {
PCIE_DBG(pcie_dev,
"vreg-0.9-voltage-level missing, using default values\n");
} else {
pcie_dev->vreg[MSM_PCIE_VREG_0P9].max_v =
pcie_dev->vreg_levels[0];
pcie_dev->vreg[MSM_PCIE_VREG_0P9].min_v =
pcie_dev->vreg_levels[1];
pcie_dev->vreg[MSM_PCIE_VREG_0P9].opt_mode =
pcie_dev->vreg_levels[2];
}
for (i = 0; i < PCIE_CONF_SPACE_DW; i++)
pcie_dev->rc_shadow[i] = PCIE_CLEAR;
for (i = 0; i < MAX_DEVICE_NUM; i++)