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spi: rockchip-sfc: Add rockchip,rk3506-fspi compatible

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Change-Id: I61f67209b25e1917e656c1c8faa6241df58478b2
Signed-off-by: Jon Lin <jon.lin@rock-chips.com>
This commit is contained in:
Jon Lin
2024-11-01 10:50:18 +08:00
committed by Dingqiang Lin
parent 89b9a1cfda
commit 7f790a5cf3
1 changed files with 51 additions and 7 deletions
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58
drivers/spi/spi-rockchip-sfc.c
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@@ -15,12 +15,14 @@
#include <linux/dma-mapping.h>
#include <linux/iopoll.h>
#include <linux/interrupt.h>
#include <linux/mfd/syscon.h>
#include <linux/mm.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/pinctrl/consumer.h>
#include <linux/platform_device.h>
#include <linux/pm_runtime.h>
#include <linux/regmap.h>
#include <linux/slab.h>
#include <linux/spi/spi-mem.h>
#include <linux/of_gpio.h>
@@ -197,6 +199,16 @@
#define ROCKCHIP_AUTOSUSPEND_DELAY 2000
struct rockchip_sfc_powergood {
bool valid;
u32 grf_offset;
u8 bits_mask;
};
struct rockchip_sfc_data {
struct rockchip_sfc_powergood powergood;
};
struct rockchip_sfc {
struct device *dev;
void __iomem *regbase;
@@ -218,6 +230,8 @@ struct rockchip_sfc {
struct gpio_desc *rst_gpio;
struct gpio_desc **cs_gpiods;
struct spi_master *master;
struct regmap *grf;
struct rockchip_sfc_data *data;
};
static int rockchip_sfc_reset(struct rockchip_sfc *sfc)
@@ -392,6 +406,7 @@ static int rockchip_sfc_xfer_setup(struct rockchip_sfc *sfc,
{
u32 ctrl = 0, cmd = 0, cmd_ext = 0, dummy_ext = 0;
u8 cs = mem->spi->chip_select;
u32 voltage;
/* set CMD */
if (op->cmd.nbytes == 2) {
@@ -461,6 +476,15 @@ static int rockchip_sfc_xfer_setup(struct rockchip_sfc *sfc,
dev_dbg(sfc->dev, "sfc ctrl=%x cmd=%x cmd_ext=%x addr=%llx dummy_ext=%x len=%x cs=%d\n",
ctrl, cmd, cmd_ext, op->addr.val, cmd_ext, len, cs);
if (sfc->data && sfc->data->powergood.valid) {
if (regmap_read_poll_timeout(sfc->grf, sfc->data->powergood.grf_offset,
voltage, voltage & sfc->data->powergood.bits_mask,
1000, jiffies_to_usecs(HZ))) {
dev_err(sfc->dev, "wait for powergood failed\n");
return -EIO;
}
}
if (cmd_ext)
writel(cmd_ext, sfc->regbase + SFC_CMD_EXT);
if (sfc->version >= SFC_VER_8)
@@ -900,6 +924,22 @@ static int rockchip_sfc_get_gpio_descs(struct spi_controller *ctlr, struct rockc
return 0;
}
static const struct rockchip_sfc_data rk3506_fspi_data = {
.powergood = {
.valid = true,
.grf_offset = 0x100,
.bits_mask = BIT(0),
},
};
static const struct of_device_id rockchip_sfc_dt_ids[] = {
{ .compatible = "rockchip,fspi",},
{ .compatible = "rockchip,rk3506-fspi", .data = &rk3506_fspi_data},
{ .compatible = "rockchip,sfc"},
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(of, rockchip_sfc_dt_ids);
static int rockchip_sfc_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
@@ -992,6 +1032,17 @@ static int rockchip_sfc_probe(struct platform_device *pdev)
goto err_irq;
}
sfc->data = (struct rockchip_sfc_data *)device_get_match_data(&pdev->dev);
if (sfc->data) {
sfc->grf = syscon_regmap_lookup_by_phandle_optional(dev->of_node, "rockchip,grf");
if (IS_ERR_OR_NULL(sfc->grf)) {
ret = -EINVAL;
dev_err(dev, "Failed to find grf\n");
goto err_irq;
}
}
platform_set_drvdata(pdev, sfc);
if (IS_ENABLED(CONFIG_ROCKCHIP_THUNDER_BOOT)) {
@@ -1149,13 +1200,6 @@ static const struct dev_pm_ops rockchip_sfc_pm_ops = {
SET_SYSTEM_SLEEP_PM_OPS(rockchip_sfc_suspend, rockchip_sfc_resume)
};
static const struct of_device_id rockchip_sfc_dt_ids[] = {
{ .compatible = "rockchip,fspi"},
{ .compatible = "rockchip,sfc"},
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(of, rockchip_sfc_dt_ids);
static struct platform_driver rockchip_sfc_driver = {
.driver = {
.name = "rockchip-sfc",