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mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-29 11:11:45 -04:00
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Merge remote-tracking branches 'spi/topic/overlay', 'spi/topic/pxa2xx', 'spi/topic/s3c64xx', 'spi/topic/sh-msiof' and 'spi/topic/spidev' into spi-next

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This commit is contained in:
Mark Brown 2016-01-11 16:48:35 +00:00
commit 4f9530705b
16 changed files with 160 additions and 80 deletions
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3
drivers/spi/spi-pxa2xx.c
View file

@ -1567,9 +1567,6 @@ static int pxa2xx_spi_probe(struct platform_device *pdev)
if (!is_quark_x1000_ssp(drv_data))
pxa2xx_spi_write(drv_data, SSPSP, 0);
if (is_lpss_ssp(drv_data))
lpss_ssp_setup(drv_data);
if (is_lpss_ssp(drv_data)) {
lpss_ssp_setup(drv_data);
config = lpss_get_config(drv_data);

33
drivers/spi/spi-s3c64xx.c
View file

@ -133,7 +133,6 @@
struct s3c64xx_spi_dma_data {
struct dma_chan *ch;
enum dma_transfer_direction direction;
unsigned int dmach;
};
/**
@ -325,7 +324,7 @@ static int s3c64xx_spi_prepare_transfer(struct spi_master *spi)
/* Acquire DMA channels */
sdd->rx_dma.ch = dma_request_slave_channel_compat(mask, filter,
(void *)(long)sdd->rx_dma.dmach, dev, "rx");
sdd->cntrlr_info->dma_rx, dev, "rx");
if (!sdd->rx_dma.ch) {
dev_err(dev, "Failed to get RX DMA channel\n");
ret = -EBUSY;
@ -334,7 +333,7 @@ static int s3c64xx_spi_prepare_transfer(struct spi_master *spi)
spi->dma_rx = sdd->rx_dma.ch;
sdd->tx_dma.ch = dma_request_slave_channel_compat(mask, filter,
(void *)(long)sdd->tx_dma.dmach, dev, "tx");
sdd->cntrlr_info->dma_tx, dev, "tx");
if (!sdd->tx_dma.ch) {
dev_err(dev, "Failed to get TX DMA channel\n");
ret = -EBUSY;
@ -1028,7 +1027,6 @@ static inline struct s3c64xx_spi_port_config *s3c64xx_spi_get_port_config(
static int s3c64xx_spi_probe(struct platform_device *pdev)
{
struct resource *mem_res;
struct resource *res;
struct s3c64xx_spi_driver_data *sdd;
struct s3c64xx_spi_info *sci = dev_get_platdata(&pdev->dev);
struct spi_master *master;
@ -1087,20 +1085,9 @@ static int s3c64xx_spi_probe(struct platform_device *pdev)
sdd->cur_bpw = 8;
if (!sdd->pdev->dev.of_node) {
res = platform_get_resource(pdev, IORESOURCE_DMA, 0);
if (!res) {
dev_warn(&pdev->dev, "Unable to get SPI tx dma resource. Switching to poll mode\n");
sdd->port_conf->quirks = S3C64XX_SPI_QUIRK_POLL;
} else
sdd->tx_dma.dmach = res->start;
res = platform_get_resource(pdev, IORESOURCE_DMA, 1);
if (!res) {
dev_warn(&pdev->dev, "Unable to get SPI rx dma resource. Switching to poll mode\n");
sdd->port_conf->quirks = S3C64XX_SPI_QUIRK_POLL;
} else
sdd->rx_dma.dmach = res->start;
if (!sdd->pdev->dev.of_node && (!sci->dma_tx || !sci->dma_rx)) {
dev_warn(&pdev->dev, "Unable to get SPI tx/rx DMA data. Switching to poll mode\n");
sdd->port_conf->quirks = S3C64XX_SPI_QUIRK_POLL;
}
sdd->tx_dma.direction = DMA_MEM_TO_DEV;
@ -1197,9 +1184,9 @@ static int s3c64xx_spi_probe(struct platform_device *pdev)
dev_dbg(&pdev->dev, "Samsung SoC SPI Driver loaded for Bus SPI-%d with %d Slaves attached\n",
sdd->port_id, master->num_chipselect);
dev_dbg(&pdev->dev, "\tIOmem=[%pR]\tFIFO %dbytes\tDMA=[Rx-%d, Tx-%d]\n",
dev_dbg(&pdev->dev, "\tIOmem=[%pR]\tFIFO %dbytes\tDMA=[Rx-%p, Tx-%p]\n",
mem_res, (FIFO_LVL_MASK(sdd) >> 1) + 1,
sdd->rx_dma.dmach, sdd->tx_dma.dmach);
sci->dma_rx, sci->dma_tx);
pm_runtime_mark_last_busy(&pdev->dev);
pm_runtime_put_autosuspend(&pdev->dev);
@ -1370,12 +1357,6 @@ static const struct platform_device_id s3c64xx_spi_driver_ids[] = {
}, {
.name = "s3c6410-spi",
.driver_data = (kernel_ulong_t)&s3c6410_spi_port_config,
}, {
.name = "s5pv210-spi",
.driver_data = (kernel_ulong_t)&s5pv210_spi_port_config,
}, {
.name = "exynos4210-spi",
.driver_data = (kernel_ulong_t)&exynos4_spi_port_config,
},
{ },
};

29
drivers/spi/spi.c
View file

@ -604,6 +604,24 @@ struct spi_device *spi_new_device(struct spi_master *master,
}
EXPORT_SYMBOL_GPL(spi_new_device);
/**
* spi_unregister_device - unregister a single SPI device
* @spi: spi_device to unregister
*
* Start making the passed SPI device vanish. Normally this would be handled
* by spi_unregister_master().
*/
void spi_unregister_device(struct spi_device *spi)
{
if (!spi)
return;
if (spi->dev.of_node)
of_node_clear_flag(spi->dev.of_node, OF_POPULATED);
device_unregister(&spi->dev);
}
EXPORT_SYMBOL_GPL(spi_unregister_device);
static void spi_match_master_to_boardinfo(struct spi_master *master,
struct spi_board_info *bi)
{
@ -1547,6 +1565,8 @@ static void of_register_spi_devices(struct spi_master *master)
return;
for_each_available_child_of_node(master->dev.of_node, nc) {
if (of_node_test_and_set_flag(nc, OF_POPULATED))
continue;
spi = of_register_spi_device(master, nc);
if (IS_ERR(spi))
dev_warn(&master->dev, "Failed to create SPI device for %s\n",
@ -2632,6 +2652,11 @@ static int of_spi_notify(struct notifier_block *nb, unsigned long action,
if (master == NULL)
return NOTIFY_OK; /* not for us */
if (of_node_test_and_set_flag(rd->dn, OF_POPULATED)) {
put_device(&master->dev);
return NOTIFY_OK;
}
spi = of_register_spi_device(master, rd->dn);
put_device(&master->dev);
@ -2643,6 +2668,10 @@ static int of_spi_notify(struct notifier_block *nb, unsigned long action,
break;
case OF_RECONFIG_CHANGE_REMOVE:
/* already depopulated? */
if (!of_node_check_flag(rd->dn, OF_POPULATED))
return NOTIFY_OK;
/* find our device by node */
spi = of_find_spi_device_by_node(rd->dn);
if (spi == NULL)

2
drivers/spi/spidev.c
View file

@ -284,7 +284,7 @@ static int spidev_message(struct spidev_data *spidev,
k_tmp->speed_hz = spidev->speed_hz;
#ifdef VERBOSE
dev_dbg(&spidev->spi->dev,
" xfer len %zd %s%s%s%dbits %u usec %uHz\n",
" xfer len %u %s%s%s%dbits %u usec %uHz\n",
u_tmp->len,
u_tmp->rx_buf ? "rx " : "",
u_tmp->tx_buf ? "tx " : "",