Update Linux to v5.10.109
Sourced from [1]
[1] https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-5.10.109.tar.xz
Change-Id: I19bca9fc6762d4e63bcf3e4cba88bbe560d9c76c
Signed-off-by: Olivier Deprez <olivier.deprez@arm.com>
diff --git a/drivers/spi/spi-fsl-lpspi.c b/drivers/spi/spi-fsl-lpspi.c
index 58b2da9..5d98611 100644
--- a/drivers/spi/spi-fsl-lpspi.c
+++ b/drivers/spi/spi-fsl-lpspi.c
@@ -11,7 +11,6 @@
#include <linux/dmaengine.h>
#include <linux/dma-mapping.h>
#include <linux/err.h>
-#include <linux/gpio.h>
#include <linux/interrupt.h>
#include <linux/io.h>
#include <linux/irq.h>
@@ -19,11 +18,9 @@
#include <linux/module.h>
#include <linux/of.h>
#include <linux/of_device.h>
-#include <linux/of_gpio.h>
#include <linux/pinctrl/consumer.h>
#include <linux/platform_device.h>
#include <linux/platform_data/dma-imx.h>
-#include <linux/platform_data/spi-imx.h>
#include <linux/pm_runtime.h>
#include <linux/slab.h>
#include <linux/spi/spi.h>
@@ -86,8 +83,6 @@
#define TCR_RXMSK BIT(19)
#define TCR_TXMSK BIT(18)
-static int clkdivs[] = {1, 2, 4, 8, 16, 32, 64, 128};
-
struct lpspi_config {
u8 bpw;
u8 chip_select;
@@ -103,6 +98,7 @@
struct clk *clk_ipg;
struct clk *clk_per;
bool is_slave;
+ bool is_only_cs1;
bool is_first_byte;
void *rx_buf;
@@ -124,8 +120,6 @@
bool usedma;
struct completion dma_rx_completion;
struct completion dma_tx_completion;
-
- int chipselect[0];
};
static const struct of_device_id fsl_lpspi_dt_ids[] = {
@@ -188,14 +182,13 @@
bytes_per_word = fsl_lpspi_bytes_per_word(transfer->bits_per_word);
- switch (bytes_per_word)
- {
- case 1:
- case 2:
- case 4:
- break;
- default:
- return false;
+ switch (bytes_per_word) {
+ case 1:
+ case 2:
+ case 4:
+ break;
+ default:
+ return false;
}
return true;
@@ -227,20 +220,6 @@
return 0;
}
-static int fsl_lpspi_prepare_message(struct spi_controller *controller,
- struct spi_message *msg)
-{
- struct fsl_lpspi_data *fsl_lpspi =
- spi_controller_get_devdata(controller);
- struct spi_device *spi = msg->spi;
- int gpio = fsl_lpspi->chipselect[spi->chip_select];
-
- if (gpio_is_valid(gpio))
- gpio_direction_output(gpio, spi->mode & SPI_CS_HIGH ? 0 : 1);
-
- return 0;
-}
-
static void fsl_lpspi_write_tx_fifo(struct fsl_lpspi_data *fsl_lpspi)
{
u8 txfifo_cnt;
@@ -279,10 +258,9 @@
temp |= fsl_lpspi->config.bpw - 1;
temp |= (fsl_lpspi->config.mode & 0x3) << 30;
+ temp |= (fsl_lpspi->config.chip_select & 0x3) << 24;
if (!fsl_lpspi->is_slave) {
temp |= fsl_lpspi->config.prescale << 27;
- temp |= (fsl_lpspi->config.chip_select & 0x3) << 24;
-
/*
* Set TCR_CONT will keep SS asserted after current transfer.
* For the first transfer, clear TCR_CONTC to assert SS.
@@ -331,15 +309,14 @@
}
for (prescale = 0; prescale < 8; prescale++) {
- scldiv = perclk_rate /
- (clkdivs[prescale] * config.speed_hz) - 2;
+ scldiv = perclk_rate / config.speed_hz / (1 << prescale) - 2;
if (scldiv < 256) {
fsl_lpspi->config.prescale = prescale;
break;
}
}
- if (prescale == 8 && scldiv >= 256)
+ if (scldiv >= 256)
return -EINVAL;
writel(scldiv | (scldiv << 8) | ((scldiv >> 1) << 16),
@@ -444,7 +421,10 @@
fsl_lpspi->config.mode = spi->mode;
fsl_lpspi->config.bpw = t->bits_per_word;
fsl_lpspi->config.speed_hz = t->speed_hz;
- fsl_lpspi->config.chip_select = spi->chip_select;
+ if (fsl_lpspi->is_only_cs1)
+ fsl_lpspi->config.chip_select = 1;
+ else
+ fsl_lpspi->config.chip_select = spi->chip_select;
if (!fsl_lpspi->config.speed_hz)
fsl_lpspi->config.speed_hz = spi->max_speed_hz;
@@ -469,9 +449,9 @@
fsl_lpspi->watermark = fsl_lpspi->txfifosize;
if (fsl_lpspi_can_dma(controller, spi, t))
- fsl_lpspi->usedma = 1;
+ fsl_lpspi->usedma = true;
else
- fsl_lpspi->usedma = 0;
+ fsl_lpspi->usedma = false;
return fsl_lpspi_config(fsl_lpspi);
}
@@ -675,7 +655,7 @@
int ret;
/* Prepare for TX DMA: */
- controller->dma_tx = dma_request_slave_channel_reason(dev, "tx");
+ controller->dma_tx = dma_request_chan(dev, "tx");
if (IS_ERR(controller->dma_tx)) {
ret = PTR_ERR(controller->dma_tx);
dev_dbg(dev, "can't get the TX DMA channel, error %d!\n", ret);
@@ -684,7 +664,7 @@
}
/* Prepare for RX DMA: */
- controller->dma_rx = dma_request_slave_channel_reason(dev, "rx");
+ controller->dma_rx = dma_request_chan(dev, "rx");
if (IS_ERR(controller->dma_rx)) {
ret = PTR_ERR(controller->dma_rx);
dev_dbg(dev, "can't get the RX DMA channel, error %d\n", ret);
@@ -779,7 +759,7 @@
if (temp_SR & SR_FCF && (temp_IER & IER_FCIE)) {
writel(SR_FCF, fsl_lpspi->base + IMX7ULP_SR);
- complete(&fsl_lpspi->xfer_done);
+ complete(&fsl_lpspi->xfer_done);
return IRQ_HANDLED;
}
@@ -835,13 +815,10 @@
static int fsl_lpspi_probe(struct platform_device *pdev)
{
- struct device_node *np = pdev->dev.of_node;
struct fsl_lpspi_data *fsl_lpspi;
struct spi_controller *controller;
- struct spi_imx_master *lpspi_platform_info =
- dev_get_platdata(&pdev->dev);
struct resource *res;
- int i, ret, irq;
+ int ret, irq;
u32 temp;
bool is_slave;
@@ -861,6 +838,8 @@
fsl_lpspi = spi_controller_get_devdata(controller);
fsl_lpspi->dev = &pdev->dev;
fsl_lpspi->is_slave = is_slave;
+ fsl_lpspi->is_only_cs1 = of_property_read_bool((&pdev->dev)->of_node,
+ "fsl,spi-only-use-cs1-sel");
controller->bits_per_word_mask = SPI_BPW_RANGE_MASK(8, 32);
controller->transfer_one = fsl_lpspi_transfer_one;
@@ -871,35 +850,8 @@
controller->dev.of_node = pdev->dev.of_node;
controller->bus_num = pdev->id;
controller->slave_abort = fsl_lpspi_slave_abort;
-
- ret = devm_spi_register_controller(&pdev->dev, controller);
- if (ret < 0) {
- dev_err(&pdev->dev, "spi_register_controller error.\n");
- goto out_controller_put;
- }
-
- if (!fsl_lpspi->is_slave) {
- for (i = 0; i < controller->num_chipselect; i++) {
- int cs_gpio = of_get_named_gpio(np, "cs-gpios", i);
-
- if (!gpio_is_valid(cs_gpio) && lpspi_platform_info)
- cs_gpio = lpspi_platform_info->chipselect[i];
-
- fsl_lpspi->chipselect[i] = cs_gpio;
- if (!gpio_is_valid(cs_gpio))
- continue;
-
- ret = devm_gpio_request(&pdev->dev,
- fsl_lpspi->chipselect[i],
- DRIVER_NAME);
- if (ret) {
- dev_err(&pdev->dev, "can't get cs gpios\n");
- goto out_controller_put;
- }
- }
- controller->cs_gpios = fsl_lpspi->chipselect;
- controller->prepare_message = fsl_lpspi_prepare_message;
- }
+ if (!fsl_lpspi->is_slave)
+ controller->use_gpio_descriptors = true;
init_completion(&fsl_lpspi->xfer_done);
@@ -944,7 +896,7 @@
ret = pm_runtime_get_sync(fsl_lpspi->dev);
if (ret < 0) {
dev_err(fsl_lpspi->dev, "failed to enable clock\n");
- goto out_controller_put;
+ goto out_pm_get;
}
temp = readl(fsl_lpspi->base + IMX7ULP_PARAM);
@@ -953,13 +905,26 @@
ret = fsl_lpspi_dma_init(&pdev->dev, fsl_lpspi, controller);
if (ret == -EPROBE_DEFER)
- goto out_controller_put;
+ goto out_pm_get;
if (ret < 0)
dev_err(&pdev->dev, "dma setup error %d, use pio\n", ret);
+ ret = devm_spi_register_controller(&pdev->dev, controller);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "spi_register_controller error.\n");
+ goto out_pm_get;
+ }
+
+ pm_runtime_mark_last_busy(fsl_lpspi->dev);
+ pm_runtime_put_autosuspend(fsl_lpspi->dev);
+
return 0;
+out_pm_get:
+ pm_runtime_dont_use_autosuspend(fsl_lpspi->dev);
+ pm_runtime_put_sync(fsl_lpspi->dev);
+ pm_runtime_disable(fsl_lpspi->dev);
out_controller_put:
spi_controller_put(controller);
@@ -976,8 +941,7 @@
return 0;
}
-#ifdef CONFIG_PM_SLEEP
-static int fsl_lpspi_suspend(struct device *dev)
+static int __maybe_unused fsl_lpspi_suspend(struct device *dev)
{
int ret;
@@ -986,7 +950,7 @@
return ret;
}
-static int fsl_lpspi_resume(struct device *dev)
+static int __maybe_unused fsl_lpspi_resume(struct device *dev)
{
int ret;
@@ -1000,7 +964,6 @@
return 0;
}
-#endif /* CONFIG_PM_SLEEP */
static const struct dev_pm_ops fsl_lpspi_pm_ops = {
SET_RUNTIME_PM_OPS(fsl_lpspi_runtime_suspend,