/*
* NXP FlexSPI(FSPI) controller driver.
*
- * Copyright 2019 NXP.
+ * Copyright 2019-2020 NXP
+ * Copyright 2020 Puresoftware Ltd.
*
* FlexSPI is a flexsible SPI host controller which supports two SPI
* channels and up to 4 external devices. Each channel supports
* Frieder Schrempf <frieder.schrempf@kontron.de>
*/
+#include <linux/acpi.h>
#include <linux/bitops.h>
#include <linux/clk.h>
#include <linux/completion.h>
{
int ret;
+ if (is_acpi_node(f->dev->fwnode))
+ return 0;
+
ret = clk_prepare_enable(f->clk_en);
if (ret)
return ret;
return 0;
}
-static void nxp_fspi_clk_disable_unprep(struct nxp_fspi *f)
+static int nxp_fspi_clk_disable_unprep(struct nxp_fspi *f)
{
+ if (is_acpi_node(f->dev->fwnode))
+ return 0;
+
clk_disable_unprepare(f->clk);
clk_disable_unprepare(f->clk_en);
+
+ return 0;
}
/*
f = spi_controller_get_devdata(ctlr);
f->dev = dev;
- f->devtype_data = of_device_get_match_data(dev);
+ f->devtype_data = device_get_match_data(dev);
if (!f->devtype_data) {
ret = -ENODEV;
goto err_put_ctrl;
platform_set_drvdata(pdev, f);
/* find the resources - configuration register address space */
- res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "fspi_base");
+ if (is_acpi_node(f->dev->fwnode))
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ else
+ res = platform_get_resource_byname(pdev,
+ IORESOURCE_MEM, "fspi_base");
+
f->iobase = devm_ioremap_resource(dev, res);
if (IS_ERR(f->iobase)) {
ret = PTR_ERR(f->iobase);
}
/* find the resources - controller memory mapped space */
- res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "fspi_mmap");
+ if (is_acpi_node(f->dev->fwnode))
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+ else
+ res = platform_get_resource_byname(pdev,
+ IORESOURCE_MEM, "fspi_mmap");
+
if (!res) {
ret = -ENODEV;
goto err_put_ctrl;
f->memmap_phy_size = resource_size(res);
/* find the clocks */
- f->clk_en = devm_clk_get(dev, "fspi_en");
- if (IS_ERR(f->clk_en)) {
- ret = PTR_ERR(f->clk_en);
- goto err_put_ctrl;
- }
+ if (dev_of_node(&pdev->dev)) {
+ f->clk_en = devm_clk_get(dev, "fspi_en");
+ if (IS_ERR(f->clk_en)) {
+ ret = PTR_ERR(f->clk_en);
+ goto err_put_ctrl;
+ }
- f->clk = devm_clk_get(dev, "fspi");
- if (IS_ERR(f->clk)) {
- ret = PTR_ERR(f->clk);
- goto err_put_ctrl;
- }
+ f->clk = devm_clk_get(dev, "fspi");
+ if (IS_ERR(f->clk)) {
+ ret = PTR_ERR(f->clk);
+ goto err_put_ctrl;
+ }
- ret = nxp_fspi_clk_prep_enable(f);
- if (ret) {
- dev_err(dev, "can not enable the clock\n");
- goto err_put_ctrl;
+ ret = nxp_fspi_clk_prep_enable(f);
+ if (ret) {
+ dev_err(dev, "can not enable the clock\n");
+ goto err_put_ctrl;
+ }
}
/* find the irq */
};
MODULE_DEVICE_TABLE(of, nxp_fspi_dt_ids);
+#ifdef CONFIG_ACPI
+static const struct acpi_device_id nxp_fspi_acpi_ids[] = {
+ { "NXP0009", .driver_data = (kernel_ulong_t)&lx2160a_data, },
+ {}
+};
+MODULE_DEVICE_TABLE(acpi, nxp_fspi_acpi_ids);
+#endif
+
static const struct dev_pm_ops nxp_fspi_pm_ops = {
.suspend = nxp_fspi_suspend,
.resume = nxp_fspi_resume,
.driver = {
.name = "nxp-fspi",
.of_match_table = nxp_fspi_dt_ids,
+ .acpi_match_table = ACPI_PTR(nxp_fspi_acpi_ids),
.pm = &nxp_fspi_pm_ops,
},
.probe = nxp_fspi_probe,