From: Frank Li <Frank.Li@nxp.com>
To: krzysztof.kozlowski@linaro.org
Cc: Frank.li@nxp.com, bhelgaas@google.com, conor+dt@kernel.org,
devicetree@vger.kernel.org, festevam@gmail.com,
helgaas@kernel.org, hongxing.zhu@nxp.com, imx@lists.linux.dev,
kernel@pengutronix.de, krzysztof.kozlowski+dt@linaro.org,
kw@linux.com, l.stach@pengutronix.de,
linux-arm-kernel@lists.infradead.org, linux-imx@nxp.com,
linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org,
lpieralisi@kernel.org, manivannan.sadhasivam@linaro.org,
robh@kernel.org, s.hauer@pengutronix.de, shawnguo@kernel.org
Subject: [PATCH v4 05/15] PCI: imx6: Simplify ltssm_enable() by using ltssm_off and ltssm_mask
Date: Sun, 17 Dec 2023 00:12:00 -0500 [thread overview]
Message-ID: <20231217051210.754832-6-Frank.Li@nxp.com> (raw)
In-Reply-To: <20231217051210.754832-1-Frank.Li@nxp.com>
Add drvdata::ltssm_off and drvdata::ltssm_mask to simple
imx6_pcie_ltssm_enable(disable)() logic.
Signed-off-by: Frank Li <Frank.Li@nxp.com>
---
Notes:
Change from v1 to v3
- none
drivers/pci/controller/dwc/pci-imx6.c | 37 ++++++++++++---------------
1 file changed, 16 insertions(+), 21 deletions(-)
diff --git a/drivers/pci/controller/dwc/pci-imx6.c b/drivers/pci/controller/dwc/pci-imx6.c
index 7145947e21d92..79d892836a24d 100644
--- a/drivers/pci/controller/dwc/pci-imx6.c
+++ b/drivers/pci/controller/dwc/pci-imx6.c
@@ -75,6 +75,8 @@ struct imx6_pcie_drvdata {
int dbi_length;
const char *gpr;
const char *clk_names[IMX6_PCIE_MAX_CLKS];
+ const u32 ltssm_off;
+ const u32 ltssm_mask;
};
struct imx6_pcie {
@@ -775,18 +777,11 @@ static int imx6_pcie_wait_for_speed_change(struct imx6_pcie *imx6_pcie)
static void imx6_pcie_ltssm_enable(struct device *dev)
{
struct imx6_pcie *imx6_pcie = dev_get_drvdata(dev);
+ const struct imx6_pcie_drvdata *drvdata = imx6_pcie->drvdata;
- switch (imx6_pcie->drvdata->variant) {
- case IMX6Q:
- case IMX6SX:
- case IMX6QP:
- regmap_update_bits(imx6_pcie->iomuxc_gpr, IOMUXC_GPR12,
- IMX6Q_GPR12_PCIE_CTL_2,
- IMX6Q_GPR12_PCIE_CTL_2);
- break;
- default:
- break;
- }
+ if (drvdata->ltssm_mask)
+ regmap_update_bits(imx6_pcie->iomuxc_gpr, drvdata->ltssm_off, drvdata->ltssm_mask,
+ drvdata->ltssm_mask);
reset_control_deassert(imx6_pcie->apps_reset);
}
@@ -794,17 +789,11 @@ static void imx6_pcie_ltssm_enable(struct device *dev)
static void imx6_pcie_ltssm_disable(struct device *dev)
{
struct imx6_pcie *imx6_pcie = dev_get_drvdata(dev);
+ const struct imx6_pcie_drvdata *drvdata = imx6_pcie->drvdata;
- switch (imx6_pcie->drvdata->variant) {
- case IMX6Q:
- case IMX6SX:
- case IMX6QP:
- regmap_update_bits(imx6_pcie->iomuxc_gpr, IOMUXC_GPR12,
- IMX6Q_GPR12_PCIE_CTL_2, 0);
- break;
- default:
- break;
- }
+ if (drvdata->ltssm_mask)
+ regmap_update_bits(imx6_pcie->iomuxc_gpr, drvdata->ltssm_off,
+ drvdata->ltssm_mask, 0);
reset_control_assert(imx6_pcie->apps_reset);
}
@@ -1385,6 +1374,8 @@ static const struct imx6_pcie_drvdata drvdata[] = {
.dbi_length = 0x200,
.gpr = "fsl,imx6q-iomuxc-gpr",
.clk_names = {IMX6_CLKS_NO_PHYDRV},
+ .ltssm_off = IOMUXC_GPR12,
+ .ltssm_mask = IMX6Q_GPR12_PCIE_CTL_2,
},
[IMX6SX] = {
.variant = IMX6SX,
@@ -1393,6 +1384,8 @@ static const struct imx6_pcie_drvdata drvdata[] = {
IMX6_PCIE_FLAG_SUPPORTS_SUSPEND,
.gpr = "fsl,imx6q-iomuxc-gpr",
.clk_names = {IMX6_CLKS_NO_PHYDRV, "pcie_inbound_axi"},
+ .ltssm_off = IOMUXC_GPR12,
+ .ltssm_mask = IMX6Q_GPR12_PCIE_CTL_2,
},
[IMX6QP] = {
.variant = IMX6QP,
@@ -1402,6 +1395,8 @@ static const struct imx6_pcie_drvdata drvdata[] = {
.dbi_length = 0x200,
.gpr = "fsl,imx6q-iomuxc-gpr",
.clk_names = {IMX6_CLKS_NO_PHYDRV},
+ .ltssm_off = IOMUXC_GPR12,
+ .ltssm_mask = IMX6Q_GPR12_PCIE_CTL_2,
},
[IMX7D] = {
.variant = IMX7D,
--
2.34.1
next prev parent reply other threads:[~2023-12-17 5:13 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-12-17 5:11 [PATCH v4 00/15] PCI: imx6: Clean up and add imx95 pci support Frank Li
2023-12-17 5:11 ` [PATCH v4 01/15] PCI: imx6: Simplify clock handling by using bulk_clk_*() function Frank Li
2023-12-17 17:06 ` Manivannan Sadhasivam
2023-12-18 14:28 ` Frank Li
2023-12-17 5:11 ` [PATCH v4 02/15] PCI: imx6: Simplify phy handling by using by using IMX6_PCIE_FLAG_HAS_PHY Frank Li
2023-12-17 17:18 ` Manivannan Sadhasivam
2023-12-18 14:35 ` Frank Li
2023-12-17 5:11 ` [PATCH v4 03/15] PCI: imx6: Simplify reset handling by using by using *_FLAG_HAS_*_RESET Frank Li
2023-12-17 17:34 ` Manivannan Sadhasivam
2023-12-17 5:11 ` [PATCH v4 04/15] PCI: imx6: Using "linux,pci-domain" as slot ID Frank Li
2023-12-17 17:51 ` Manivannan Sadhasivam
2023-12-17 5:12 ` Frank Li [this message]
2023-12-17 5:12 ` [PATCH v4 06/15] PCI: imx6: Simplify configure_type() by using mode_off and mode_mask Frank Li
2023-12-17 5:12 ` [PATCH v4 07/15] PCI: imx6: Simplify switch-case logic by involve init_phy callback Frank Li
2023-12-17 5:12 ` [PATCH v4 08/15] dt-bindings: imx6q-pcie: Clean up irrationality clocks check Frank Li
2023-12-17 5:12 ` [PATCH v4 09/15] dt-bindings: imx6q-pcie: remove reg and reg-name Frank Li
2023-12-20 15:46 ` Rob Herring
2023-12-20 15:54 ` Rob Herring
2023-12-17 5:12 ` [PATCH v4 10/15] dt-bindings: imx6q-pcie: Add imx95 pcie compatible string Frank Li
2023-12-17 5:12 ` [PATCH v4 11/15] PCI: imx6: Add iMX95 PCIe support Frank Li
2023-12-17 5:12 ` [PATCH v4 12/15] PCI: imx6: Clean up get addr_space code Frank Li
2023-12-17 5:12 ` [PATCH v4 13/15] PCI: imx6: Add epc_features in imx6_pcie_drvdata Frank Li
2023-12-17 5:12 ` [PATCH v4 14/15] dt-bindings: imx6q-pcie: Add iMX95 pcie endpoint compatible string Frank Li
2023-12-17 5:12 ` [PATCH v4 15/15] PCI: imx6: Add iMX95 Endpoint (EP) function support Frank Li
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