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Subject[PATCH] PCI: qcom: use regulator bluk api for apq8064 supplies
Date
From: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>

This patch converts existing regulators to use regulator bulk apis,
to make it consistent with msm8996 changes also cut down some redundant code.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
---
drivers/pci/dwc/pcie-qcom.c | 52 +++++++++++++--------------------------------
1 file changed, 15 insertions(+), 37 deletions(-)

diff --git a/drivers/pci/dwc/pcie-qcom.c b/drivers/pci/dwc/pcie-qcom.c
index 519a2ae416eb..ba923cfeaa25 100644
--- a/drivers/pci/dwc/pcie-qcom.c
+++ b/drivers/pci/dwc/pcie-qcom.c
@@ -79,6 +79,7 @@
#define PCIE20_v3_PARF_SLV_ADDR_SPACE_SIZE 0x358
#define SLV_ADDR_SPACE_SZ 0x10000000

+#define QCOM_PCIE_2_1_0_MAX_SUPPLY 3
struct qcom_pcie_resources_2_1_0 {
struct clk *iface_clk;
struct clk *core_clk;
@@ -88,9 +89,7 @@ struct qcom_pcie_resources_2_1_0 {
struct reset_control *ahb_reset;
struct reset_control *por_reset;
struct reset_control *phy_reset;
- struct regulator *vdda;
- struct regulator *vdda_phy;
- struct regulator *vdda_refclk;
+ struct regulator_bulk_data supplies[QCOM_PCIE_2_1_0_MAX_SUPPLY];
};

struct qcom_pcie_resources_1_0_0 {
@@ -217,18 +216,15 @@ static int qcom_pcie_get_resources_2_1_0(struct qcom_pcie *pcie)
struct qcom_pcie_resources_2_1_0 *res = &pcie->res.v2_1_0;
struct dw_pcie *pci = pcie->pci;
struct device *dev = pci->dev;
+ int ret;

- res->vdda = devm_regulator_get(dev, "vdda");
- if (IS_ERR(res->vdda))
- return PTR_ERR(res->vdda);
-
- res->vdda_phy = devm_regulator_get(dev, "vdda_phy");
- if (IS_ERR(res->vdda_phy))
- return PTR_ERR(res->vdda_phy);
-
- res->vdda_refclk = devm_regulator_get(dev, "vdda_refclk");
- if (IS_ERR(res->vdda_refclk))
- return PTR_ERR(res->vdda_refclk);
+ res->supplies[0].supply = "vdda";
+ res->supplies[1].supply = "vdda_phy";
+ res->supplies[1].supply = "vdda_refclk";
+ ret = devm_regulator_bulk_get(dev, QCOM_PCIE_2_1_0_MAX_SUPPLY,
+ res->supplies);
+ if (ret)
+ return ret;

res->iface_clk = devm_clk_get(dev, "iface");
if (IS_ERR(res->iface_clk))
@@ -274,9 +270,7 @@ static void qcom_pcie_deinit_2_1_0(struct qcom_pcie *pcie)
clk_disable_unprepare(res->iface_clk);
clk_disable_unprepare(res->core_clk);
clk_disable_unprepare(res->phy_clk);
- regulator_disable(res->vdda);
- regulator_disable(res->vdda_phy);
- regulator_disable(res->vdda_refclk);
+ regulator_bulk_disable(QCOM_PCIE_2_1_0_MAX_SUPPLY, res->supplies);
}

static int qcom_pcie_init_2_1_0(struct qcom_pcie *pcie)
@@ -287,24 +281,12 @@ static int qcom_pcie_init_2_1_0(struct qcom_pcie *pcie)
u32 val;
int ret;

- ret = regulator_enable(res->vdda);
- if (ret) {
- dev_err(dev, "cannot enable vdda regulator\n");
+ ret = regulator_bulk_enable(QCOM_PCIE_2_1_0_MAX_SUPPLY, res->supplies);
+ if (ret < 0) {
+ dev_err(dev, "cannot enable regulators\n");
return ret;
}

- ret = regulator_enable(res->vdda_refclk);
- if (ret) {
- dev_err(dev, "cannot enable vdda_refclk regulator\n");
- goto err_refclk;
- }
-
- ret = regulator_enable(res->vdda_phy);
- if (ret) {
- dev_err(dev, "cannot enable vdda_phy regulator\n");
- goto err_vdda_phy;
- }
-
ret = reset_control_assert(res->ahb_reset);
if (ret) {
dev_err(dev, "cannot assert ahb reset\n");
@@ -388,11 +370,7 @@ static int qcom_pcie_init_2_1_0(struct qcom_pcie *pcie)
err_clk_phy:
clk_disable_unprepare(res->iface_clk);
err_assert_ahb:
- regulator_disable(res->vdda_phy);
-err_vdda_phy:
- regulator_disable(res->vdda_refclk);
-err_refclk:
- regulator_disable(res->vdda);
+ regulator_bulk_disable(QCOM_PCIE_2_1_0_MAX_SUPPLY, res->supplies);

return ret;
}
--
2.15.1
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