[PATCH v3 1/2] PCI: imx6: introduce drvdata
Introduce driver data struct. This will simplify handling of device
specific differences.
Signed-off-by: Stefan Agner
Reviewed-by: Lucas Stach
---
Changes in v2:
- Split drvdata introduction in a separate patch
- Use an array instead of individual struct imx6_pcie_drvdata declarations
Changes in v3:
- Rebase on pci/dwc
drivers/pci/controller/dwc/pci-imx6.c | 46 ---
1 file changed, 28 insertions(+), 18 deletions(-)
diff --git a/drivers/pci/controller/dwc/pci-imx6.c
b/drivers/pci/controller/dwc/pci-imx6.c
index 69f86234f7c0..cdcf54ff30fb 100644
--- a/drivers/pci/controller/dwc/pci-imx6.c
+++ b/drivers/pci/controller/dwc/pci-imx6.c
@@ -41,6 +41,10 @@ enum imx6_pcie_variants {
IMX7D,
};
+struct imx6_pcie_drvdata {
+ enum imx6_pcie_variants variant;
+};
+
struct imx6_pcie {
struct dw_pcie *pci;
int reset_gpio;
@@ -53,7 +57,7 @@ struct imx6_pcie {
struct reset_control*pciephy_reset;
struct reset_control*apps_reset;
struct reset_control*turnoff_reset;
- enum imx6_pcie_variants variant;
+ const struct imx6_pcie_drvdata *drvdata;
u32 tx_deemph_gen1;
u32 tx_deemph_gen2_3p5db;
u32 tx_deemph_gen2_6db;
@@ -340,7 +344,7 @@ static void imx6_pcie_assert_core_reset(struct imx6_pcie
*imx6_pcie)
{
struct device *dev = imx6_pcie->pci->dev;
- switch (imx6_pcie->variant) {
+ switch (imx6_pcie->drvdata->variant) {
case IMX7D:
reset_control_assert(imx6_pcie->pciephy_reset);
reset_control_assert(imx6_pcie->apps_reset);
@@ -382,7 +386,7 @@ static int imx6_pcie_enable_ref_clk(struct imx6_pcie
*imx6_pcie)
struct device *dev = pci->dev;
int ret = 0;
- switch (imx6_pcie->variant) {
+ switch (imx6_pcie->drvdata->variant) {
case IMX6SX:
ret = clk_prepare_enable(imx6_pcie->pcie_inbound_axi);
if (ret) {
@@ -485,7 +489,7 @@ static void imx6_pcie_deassert_core_reset(struct imx6_pcie
*imx6_pcie)
!imx6_pcie->gpio_active_high);
}
- switch (imx6_pcie->variant) {
+ switch (imx6_pcie->drvdata->variant) {
case IMX7D:
reset_control_deassert(imx6_pcie->pciephy_reset);
imx7d_pcie_wait_for_phy_pll_lock(imx6_pcie);
@@ -523,7 +527,7 @@ static void imx6_pcie_deassert_core_reset(struct imx6_pcie
*imx6_pcie)
static void imx6_pcie_init_phy(struct imx6_pcie *imx6_pcie)
{
- switch (imx6_pcie->variant) {
+ switch (imx6_pcie->drvdata->variant) {
case IMX7D:
regmap_update_bits(imx6_pcie->iomuxc_gpr, IOMUXC_GPR12,
IMX7D_GPR12_PCIE_PHY_REFCLK_SEL, 0);
@@ -645,7 +649,7 @@ static void imx6_pcie_ltssm_enable(struct device *dev)
{
struct imx6_pcie *imx6_pcie = dev_get_drvdata(dev);
- switch (imx6_pcie->variant) {
+ switch (imx6_pcie->drvdata->variant) {
case IMX6Q:
case IMX6SX:
case IMX6QP:
@@ -698,7 +702,7 @@ static int imx6_pcie_establish_link(struct imx6_pcie
*imx6_pcie)
tmp |= PORT_LOGIC_SPEED_CHANGE;
dw_pcie_writel_dbi(pci, PCIE_LINK_WIDTH_SPEED_CONTROL, tmp);
- if (imx6_pcie->variant != IMX7D) {
+ if (imx6_pcie->drvdata->variant != IMX7D) {
/*
* On i.MX7, DIRECT_SPEED_CHANGE behaves differently
* from i.MX6 family when no link speed transition
@@ -801,7 +805,7 @@ static void imx6_pcie_ltssm_disable(struct device *dev)
{
struct imx6_pcie *imx6_pcie = dev_get_drvdata(dev);
- switch (imx6_pcie->variant) {
+ switch (imx6_pcie->drvdata->variant) {
case IMX6SX:
case IMX6QP:
regmap_update_bits(imx6_pcie->iomuxc_gpr, IOMUXC_GPR12,
@@ -836,7 +840,7 @@ static void imx6_pcie_clk_disable(struct imx6_pcie
*imx6_pcie)
clk_disable_unprepare(imx6_pcie->pcie_phy);
clk_disable_unprepare(imx6_pcie->pcie_bus);
- if (imx6_pcie->variant == IMX7D) {
+ if (imx6_pcie->drvdata->variant == IMX7D) {
regmap_update_bits(imx6_pcie->iomuxc_gpr, IOMUXC_GPR12,
IMX7D_GPR12_PCIE_PHY_REFCLK_SEL,
IMX7D_GPR12_PCIE_PHY_REFCLK_SEL);
@@ -847,7 +851,7 @@ static int imx6_pcie_suspend_noirq(struct device *dev)
{
struct imx6_pcie *imx6_pcie = dev_get_drvdata(dev);
- if (imx6_pcie->variant != IMX7D)
+ if (imx6_pcie->drvdata->variant != IMX7D)
return 0;
imx6_pcie_pm_turnoff(imx6_pcie);
@@ -863,7 +867,7 @@ static int imx6_pcie_resume_noirq(struct device *dev)
struct imx6_pcie *imx6_pcie = dev_get_drvdata(dev);
struct pcie_port *pp = _pcie->pci->pp;
- if
[PATCH v3 1/2] PCI: imx6: introduce drvdata
Introduce driver data struct. This will simplify handling of device
specific differences.
Signed-off-by: Stefan Agner
Reviewed-by: Lucas Stach
---
Changes in v2:
- Split drvdata introduction in a separate patch
- Use an array instead of individual struct imx6_pcie_drvdata declarations
Changes in v3:
- Rebase on pci/dwc
drivers/pci/controller/dwc/pci-imx6.c | 46 ---
1 file changed, 28 insertions(+), 18 deletions(-)
diff --git a/drivers/pci/controller/dwc/pci-imx6.c
b/drivers/pci/controller/dwc/pci-imx6.c
index 69f86234f7c0..cdcf54ff30fb 100644
--- a/drivers/pci/controller/dwc/pci-imx6.c
+++ b/drivers/pci/controller/dwc/pci-imx6.c
@@ -41,6 +41,10 @@ enum imx6_pcie_variants {
IMX7D,
};
+struct imx6_pcie_drvdata {
+ enum imx6_pcie_variants variant;
+};
+
struct imx6_pcie {
struct dw_pcie *pci;
int reset_gpio;
@@ -53,7 +57,7 @@ struct imx6_pcie {
struct reset_control*pciephy_reset;
struct reset_control*apps_reset;
struct reset_control*turnoff_reset;
- enum imx6_pcie_variants variant;
+ const struct imx6_pcie_drvdata *drvdata;
u32 tx_deemph_gen1;
u32 tx_deemph_gen2_3p5db;
u32 tx_deemph_gen2_6db;
@@ -340,7 +344,7 @@ static void imx6_pcie_assert_core_reset(struct imx6_pcie
*imx6_pcie)
{
struct device *dev = imx6_pcie->pci->dev;
- switch (imx6_pcie->variant) {
+ switch (imx6_pcie->drvdata->variant) {
case IMX7D:
reset_control_assert(imx6_pcie->pciephy_reset);
reset_control_assert(imx6_pcie->apps_reset);
@@ -382,7 +386,7 @@ static int imx6_pcie_enable_ref_clk(struct imx6_pcie
*imx6_pcie)
struct device *dev = pci->dev;
int ret = 0;
- switch (imx6_pcie->variant) {
+ switch (imx6_pcie->drvdata->variant) {
case IMX6SX:
ret = clk_prepare_enable(imx6_pcie->pcie_inbound_axi);
if (ret) {
@@ -485,7 +489,7 @@ static void imx6_pcie_deassert_core_reset(struct imx6_pcie
*imx6_pcie)
!imx6_pcie->gpio_active_high);
}
- switch (imx6_pcie->variant) {
+ switch (imx6_pcie->drvdata->variant) {
case IMX7D:
reset_control_deassert(imx6_pcie->pciephy_reset);
imx7d_pcie_wait_for_phy_pll_lock(imx6_pcie);
@@ -523,7 +527,7 @@ static void imx6_pcie_deassert_core_reset(struct imx6_pcie
*imx6_pcie)
static void imx6_pcie_init_phy(struct imx6_pcie *imx6_pcie)
{
- switch (imx6_pcie->variant) {
+ switch (imx6_pcie->drvdata->variant) {
case IMX7D:
regmap_update_bits(imx6_pcie->iomuxc_gpr, IOMUXC_GPR12,
IMX7D_GPR12_PCIE_PHY_REFCLK_SEL, 0);
@@ -645,7 +649,7 @@ static void imx6_pcie_ltssm_enable(struct device *dev)
{
struct imx6_pcie *imx6_pcie = dev_get_drvdata(dev);
- switch (imx6_pcie->variant) {
+ switch (imx6_pcie->drvdata->variant) {
case IMX6Q:
case IMX6SX:
case IMX6QP:
@@ -698,7 +702,7 @@ static int imx6_pcie_establish_link(struct imx6_pcie
*imx6_pcie)
tmp |= PORT_LOGIC_SPEED_CHANGE;
dw_pcie_writel_dbi(pci, PCIE_LINK_WIDTH_SPEED_CONTROL, tmp);
- if (imx6_pcie->variant != IMX7D) {
+ if (imx6_pcie->drvdata->variant != IMX7D) {
/*
* On i.MX7, DIRECT_SPEED_CHANGE behaves differently
* from i.MX6 family when no link speed transition
@@ -801,7 +805,7 @@ static void imx6_pcie_ltssm_disable(struct device *dev)
{
struct imx6_pcie *imx6_pcie = dev_get_drvdata(dev);
- switch (imx6_pcie->variant) {
+ switch (imx6_pcie->drvdata->variant) {
case IMX6SX:
case IMX6QP:
regmap_update_bits(imx6_pcie->iomuxc_gpr, IOMUXC_GPR12,
@@ -836,7 +840,7 @@ static void imx6_pcie_clk_disable(struct imx6_pcie
*imx6_pcie)
clk_disable_unprepare(imx6_pcie->pcie_phy);
clk_disable_unprepare(imx6_pcie->pcie_bus);
- if (imx6_pcie->variant == IMX7D) {
+ if (imx6_pcie->drvdata->variant == IMX7D) {
regmap_update_bits(imx6_pcie->iomuxc_gpr, IOMUXC_GPR12,
IMX7D_GPR12_PCIE_PHY_REFCLK_SEL,
IMX7D_GPR12_PCIE_PHY_REFCLK_SEL);
@@ -847,7 +851,7 @@ static int imx6_pcie_suspend_noirq(struct device *dev)
{
struct imx6_pcie *imx6_pcie = dev_get_drvdata(dev);
- if (imx6_pcie->variant != IMX7D)
+ if (imx6_pcie->drvdata->variant != IMX7D)
return 0;
imx6_pcie_pm_turnoff(imx6_pcie);
@@ -863,7 +867,7 @@ static int imx6_pcie_resume_noirq(struct device *dev)
struct imx6_pcie *imx6_pcie = dev_get_drvdata(dev);
struct pcie_port *pp = _pcie->pci->pp;
- if
