[PATCH v2 17/33] spi: bitbang: Follow renaming of SPI "master" to "controller"

Uwe Kleine-König
2024-01-22T18:08:26Z

the SPI bitbang controller drivers.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
---
drivers/spi/spi-ath79.c | 4 +--
drivers/spi/spi-bitbang.c | 64 ++++++++++++++++-----------------
drivers/spi/spi-butterfly.c | 6 ++--
drivers/spi/spi-davinci.c | 6 ++--
drivers/spi/spi-gpio.c | 2 +-
drivers/spi/spi-lm70llp.c | 6 ++--
drivers/spi/spi-oc-tiny.c | 6 ++--
drivers/spi/spi-omap-uwire.c | 4 +--
drivers/spi/spi-sh-sci.c | 10 +++---
drivers/spi/spi-xilinx.c | 4 +--
drivers/spi/spi-xtensa-xtfpga.c | 2 +-
include/linux/spi/spi_bitbang.h | 2 +-
12 files changed, 58 insertions(+), 58 deletions(-)

diff --git a/drivers/spi/spi-ath79.c b/drivers/spi/spi-ath79.c
index b7ada981464a..d78762d4db98 100644
--- a/drivers/spi/spi-ath79.c
+++ b/drivers/spi/spi-ath79.c
@@ -189,7 +189,7 @@ static int ath79_spi_probe(struct platform_device *pdev)
host->num_chipselect = 3;
host->mem_ops = &ath79_mem_ops;

- sp->bitbang.master = host;
+ sp->bitbang.ctlr = host;
sp->bitbang.chipselect = ath79_spi_chipselect;
sp->bitbang.txrx_word[SPI_MODE_0] = ath79_spi_txrx_mode0;
sp->bitbang.flags = SPI_CS_HIGH;
@@ -237,7 +237,7 @@ static void ath79_spi_remove(struct platform_device *pdev)

spi_bitbang_stop(&sp->bitbang);
ath79_spi_disable(sp);
- spi_controller_put(sp->bitbang.master);
+ spi_controller_put(sp->bitbang.ctlr);
}

static void ath79_spi_shutdown(struct platform_device *pdev)
diff --git a/drivers/spi/spi-bitbang.c b/drivers/spi/spi-bitbang.c
index ecd44016c197..a0e2204fc039 100644
--- a/drivers/spi/spi-bitbang.c
+++ b/drivers/spi/spi-bitbang.c
@@ -187,7 +187,7 @@ int spi_bitbang_setup(struct spi_device *spi)
bool initial_setup = false;
int retval;

- bitbang = spi_master_get_devdata(spi->master);
+ bitbang = spi_controller_get_devdata(spi->controller);

if (!cs) {
cs = kzalloc(sizeof(*cs), GFP_KERNEL);
@@ -236,7 +236,7 @@ static int spi_bitbang_bufs(struct spi_device *spi, struct spi_transfer *t)
unsigned nsecs = cs->nsecs;
struct spi_bitbang *bitbang;

- bitbang = spi_master_get_devdata(spi->master);
+ bitbang = spi_controller_get_devdata(spi->controller);
if (bitbang->set_line_direction) {
int err;

@@ -268,11 +268,11 @@ static int spi_bitbang_bufs(struct spi_device *spi, struct spi_transfer *t)
* transfer-at-a-time ones to leverage dma or fifo hardware.
*/

-static int spi_bitbang_prepare_hardware(struct spi_master *spi)
+static int spi_bitbang_prepare_hardware(struct spi_controller *spi)
{
struct spi_bitbang *bitbang;

- bitbang = spi_master_get_devdata(spi);
+ bitbang = spi_controller_get_devdata(spi);

mutex_lock(&bitbang->lock);
bitbang->busy = 1;
@@ -281,11 +281,11 @@ static int spi_bitbang_prepare_hardware(struct spi_master *spi)
return 0;
}

-static int spi_bitbang_transfer_one(struct spi_master *master,
+static int spi_bitbang_transfer_one(struct spi_controller *ctlr,
struct spi_device *spi,
struct spi_transfer *transfer)
{
- struct spi_bitbang *bitbang = spi_master_get_devdata(master);
+ struct spi_bitbang *bitbang = spi_controller_get_devdata(ctlr);
int status = 0;

if (bitbang->setup_transfer) {
@@ -303,16 +303,16 @@ static int spi_bitbang_transfer_one(struct spi_master *master,
status = -EREMOTEIO;

out:
- spi_finalize_current_transfer(master);
+ spi_finalize_current_transfer(ctlr);

return status;
}

-static int spi_bitbang_unprepare_hardware(struct spi_master *spi)
+static int spi_bitbang_unprepare_hardware(struct spi_controller *spi)
{
struct spi_bitbang *bitbang;

- bitbang = spi_master_get_devdata(spi);
+ bitbang = spi_controller_get_devdata(spi);

mutex_lock(&bitbang->lock);
bitbang->busy = 0;
@@ -323,7 +323,7 @@ static int spi_bitbang_unprepare_hardware(struct spi_master *spi)

static void spi_bitbang_set_cs(struct spi_device *spi, bool enable)
{
- struct spi_bitbang *bitbang = spi_master_get_devdata(spi->master);
+ struct spi_bitbang *bitbang = spi_controller_get_devdata(spi->controller);

/* SPI core provides CS high / low, but bitbang driver
* expects CS active
@@ -341,10 +341,10 @@ static void spi_bitbang_set_cs(struct spi_device *spi, bool enable)

int spi_bitbang_init(struct spi_bitbang *bitbang)
{
- struct spi_master *master = bitbang->master;
+ struct spi_controller *ctlr = bitbang->ctlr;
bool custom_cs;

- if (!master)
+ if (!ctlr)
return -EINVAL;
/*
* We only need the chipselect callback if we are actually using it.
@@ -352,39 +352,39 @@ int spi_bitbang_init(struct spi_bitbang *bitbang)
* SPI_CONTROLLER_GPIO_SS flag is set, we always need to call the
* driver-specific chipselect routine.
*/
- custom_cs = (!master->use_gpio_descriptors ||
- (master->flags & SPI_CONTROLLER_GPIO_SS));
+ custom_cs = (!ctlr->use_gpio_descriptors ||
+ (ctlr->flags & SPI_CONTROLLER_GPIO_SS));

if (custom_cs && !bitbang->chipselect)
return -EINVAL;

mutex_init(&bitbang->lock);

- if (!master->mode_bits)
- master->mode_bits = SPI_CPOL | SPI_CPHA | bitbang->flags;
+ if (!ctlr->mode_bits)
+ ctlr->mode_bits = SPI_CPOL | SPI_CPHA | bitbang->flags;

- if (master->transfer || master->transfer_one_message)
+ if (ctlr->transfer || ctlr->transfer_one_message)
return -EINVAL;

- master->prepare_transfer_hardware = spi_bitbang_prepare_hardware;
- master->unprepare_transfer_hardware = spi_bitbang_unprepare_hardware;
- master->transfer_one = spi_bitbang_transfer_one;
+ ctlr->prepare_transfer_hardware = spi_bitbang_prepare_hardware;
+ ctlr->unprepare_transfer_hardware = spi_bitbang_unprepare_hardware;
+ ctlr->transfer_one = spi_bitbang_transfer_one;
/*
* When using GPIO descriptors, the ->set_cs() callback doesn't even
* get called unless SPI_CONTROLLER_GPIO_SS is set.
*/
if (custom_cs)
- master->set_cs = spi_bitbang_set_cs;
+ ctlr->set_cs = spi_bitbang_set_cs;

if (!bitbang->txrx_bufs) {
bitbang->use_dma = 0;
bitbang->txrx_bufs = spi_bitbang_bufs;
- if (!master->setup) {
+ if (!ctlr->setup) {
if (!bitbang->setup_transfer)
bitbang->setup_transfer =
spi_bitbang_setup_transfer;
- master->setup = spi_bitbang_setup;
- master->cleanup = spi_bitbang_cleanup;
+ ctlr->setup = spi_bitbang_setup;
+ ctlr->cleanup = spi_bitbang_cleanup;
}
}

@@ -411,18 +411,18 @@ EXPORT_SYMBOL_GPL(spi_bitbang_init);
* master methods. Those methods are the defaults if the bitbang->txrx_bufs
* routine isn't initialized.
*
- * This routine registers the spi_master, which will process requests in a
+ * This routine registers the spi_controller, which will process requests in a
* dedicated task, keeping IRQs unblocked most of the time. To stop
* processing those requests, call spi_bitbang_stop().
*
- * On success, this routine will take a reference to master. The caller is
- * responsible for calling spi_bitbang_stop() to decrement the reference and
- * spi_master_put() as counterpart of spi_alloc_master() to prevent a memory
+ * On success, this routine will take a reference to the controller. The caller
+ * is responsible for calling spi_bitbang_stop() to decrement the reference and
+ * spi_controller_put() as counterpart of spi_alloc_master() to prevent a memory
* leak.
*/
int spi_bitbang_start(struct spi_bitbang *bitbang)
{
- struct spi_master *master = bitbang->master;
+ struct spi_controller *ctlr = bitbang->ctlr;
int ret;

ret = spi_bitbang_init(bitbang);
@@ -432,9 +432,9 @@ int spi_bitbang_start(struct spi_bitbang *bitbang)
/* driver may get busy before register() returns, especially
* if someone registered boardinfo for devices
*/
- ret = spi_register_master(spi_master_get(master));
+ ret = spi_register_controller(spi_controller_get(ctlr));
if (ret)
- spi_master_put(master);
+ spi_controller_put(ctlr);

return ret;
}
@@ -445,7 +445,7 @@ EXPORT_SYMBOL_GPL(spi_bitbang_start);
*/
void spi_bitbang_stop(struct spi_bitbang *bitbang)
{
- spi_unregister_master(bitbang->master);
+ spi_unregister_controller(bitbang->ctlr);
}
EXPORT_SYMBOL_GPL(spi_bitbang_stop);

diff --git a/drivers/spi/spi-butterfly.c b/drivers/spi/spi-butterfly.c
index 289b4454242a..1d267e6c22a4 100644
--- a/drivers/spi/spi-butterfly.c
+++ b/drivers/spi/spi-butterfly.c
@@ -205,7 +205,7 @@ static void butterfly_attach(struct parport *p)
host->bus_num = 42;
host->num_chipselect = 2;

- pp->bitbang.master = host;
+ pp->bitbang.ctlr = host;
pp->bitbang.chipselect = butterfly_chipselect;
pp->bitbang.txrx_word[SPI_MODE_0] = butterfly_txrx_word_mode0;

@@ -263,7 +263,7 @@ static void butterfly_attach(struct parport *p)
pp->info[0].platform_data = &flash;
pp->info[0].chip_select = 1;
pp->info[0].controller_data = pp;
- pp->dataflash = spi_new_device(pp->bitbang.master, &pp->info[0]);
+ pp->dataflash = spi_new_device(pp->bitbang.ctlr, &pp->info[0]);
if (pp->dataflash)
pr_debug("%s: dataflash at %s\n", p->name,
dev_name(&pp->dataflash->dev));
@@ -308,7 +308,7 @@ static void butterfly_detach(struct parport *p)
parport_release(pp->pd);
parport_unregister_device(pp->pd);

- spi_controller_put(pp->bitbang.master);
+ spi_controller_put(pp->bitbang.ctlr);
}

static struct parport_driver butterfly_driver = {
diff --git a/drivers/spi/spi-davinci.c b/drivers/spi/spi-davinci.c
index 5688be245c68..be3998104bfb 100644
--- a/drivers/spi/spi-davinci.c
+++ b/drivers/spi/spi-davinci.c
@@ -459,7 +459,7 @@ static bool davinci_spi_can_dma(struct spi_controller *host,

static int davinci_spi_check_error(struct davinci_spi *dspi, int int_status)
{
- struct device *sdev = dspi->bitbang.master->dev.parent;
+ struct device *sdev = dspi->bitbang.ctlr->dev.parent;

if (int_status & SPIFLG_TIMEOUT_MASK) {
dev_err(sdev, "SPI Time-out Error\n");
@@ -742,7 +742,7 @@ static irqreturn_t davinci_spi_irq(s32 irq, void *data)

static int davinci_spi_request_dma(struct davinci_spi *dspi)
{
- struct device *sdev = dspi->bitbang.master->dev.parent;
+ struct device *sdev = dspi->bitbang.ctlr->dev.parent;

dspi->dma_rx = dma_request_chan(sdev, "rx");
if (IS_ERR(dspi->dma_rx))
@@ -913,7 +913,7 @@ static int davinci_spi_probe(struct platform_device *pdev)
if (ret)
goto free_host;

- dspi->bitbang.master = host;
+ dspi->bitbang.ctlr = host;

dspi->clk = devm_clk_get_enabled(&pdev->dev, NULL);
if (IS_ERR(dspi->clk)) {
diff --git a/drivers/spi/spi-gpio.c b/drivers/spi/spi-gpio.c
index d8db4564b406..909cce109bba 100644
--- a/drivers/spi/spi-gpio.c
+++ b/drivers/spi/spi-gpio.c
@@ -427,7 +427,7 @@ static int spi_gpio_probe(struct platform_device *pdev)
host->cleanup = spi_gpio_cleanup;

bb = &spi_gpio->bitbang;
- bb->master = host;
+ bb->ctlr = host;
/*
* There is some additional business, apart from driving the CS GPIO
* line, that we need to do on selection. This makes the local
diff --git a/drivers/spi/spi-lm70llp.c b/drivers/spi/spi-lm70llp.c
index e6a65b5c8c31..f982bdebd028 100644
--- a/drivers/spi/spi-lm70llp.c
+++ b/drivers/spi/spi-lm70llp.c
@@ -212,7 +212,7 @@ static void spi_lm70llp_attach(struct parport *p)
/*
* SPI and bitbang hookup.
*/
- pp->bitbang.master = host;
+ pp->bitbang.ctlr = host;
pp->bitbang.chipselect = lm70_chipselect;
pp->bitbang.txrx_word[SPI_MODE_0] = lm70_txrx;
pp->bitbang.flags = SPI_3WIRE;
@@ -264,7 +264,7 @@ static void spi_lm70llp_attach(struct parport *p)
* the board info's (void *)controller_data.
*/
pp->info.controller_data = pp;
- pp->spidev_lm70 = spi_new_device(pp->bitbang.master, &pp->info);
+ pp->spidev_lm70 = spi_new_device(pp->bitbang.ctlr, &pp->info);
if (pp->spidev_lm70)
dev_dbg(&pp->spidev_lm70->dev, "spidev_lm70 at %s\n",
dev_name(&pp->spidev_lm70->dev));
@@ -309,7 +309,7 @@ static void spi_lm70llp_detach(struct parport *p)
parport_release(pp->pd);
parport_unregister_device(pp->pd);

- spi_controller_put(pp->bitbang.master);
+ spi_controller_put(pp->bitbang.ctlr);

lm70llp = NULL;
}
diff --git a/drivers/spi/spi-oc-tiny.c b/drivers/spi/spi-oc-tiny.c
index cf7c111088a6..6ea38f5e7d64 100644
--- a/drivers/spi/spi-oc-tiny.c
+++ b/drivers/spi/spi-oc-tiny.c
@@ -194,7 +194,7 @@ static int tiny_spi_of_probe(struct platform_device *pdev)

if (!np)
return 0;
- hw->bitbang.master->dev.of_node = pdev->dev.of_node;
+ hw->bitbang.ctlr->dev.of_node = pdev->dev.of_node;
if (!of_property_read_u32(np, "clock-frequency", &val))
hw->freq = val;
if (!of_property_read_u32(np, "baud-width", &val))
@@ -229,7 +229,7 @@ static int tiny_spi_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, hw);

/* setup the state for the bitbang driver */
- hw->bitbang.master = host;
+ hw->bitbang.ctlr = host;
hw->bitbang.setup_transfer = tiny_spi_setup_transfer;
hw->bitbang.txrx_bufs = tiny_spi_txrx_bufs;

@@ -274,7 +274,7 @@ static int tiny_spi_probe(struct platform_device *pdev)
static void tiny_spi_remove(struct platform_device *pdev)
{
struct tiny_spi *hw = platform_get_drvdata(pdev);
- struct spi_controller *host = hw->bitbang.master;
+ struct spi_controller *host = hw->bitbang.ctlr;

spi_bitbang_stop(&hw->bitbang);
spi_controller_put(host);
diff --git a/drivers/spi/spi-omap-uwire.c b/drivers/spi/spi-omap-uwire.c
index 2dd1c1bcf4bf..210a98d903fa 100644
--- a/drivers/spi/spi-omap-uwire.c
+++ b/drivers/spi/spi-omap-uwire.c
@@ -448,7 +448,7 @@ static void uwire_off(struct uwire_spi *uwire)
{
uwire_write_reg(UWIRE_SR3, 0);
clk_disable_unprepare(uwire->ck);
- spi_controller_put(uwire->bitbang.master);
+ spi_controller_put(uwire->bitbang.ctlr);
}

static int uwire_probe(struct platform_device *pdev)
@@ -493,7 +493,7 @@ static int uwire_probe(struct platform_device *pdev)
host->setup = uwire_setup;
host->cleanup = uwire_cleanup;

- uwire->bitbang.master = host;
+ uwire->bitbang.ctlr = host;
uwire->bitbang.chipselect = uwire_chipselect;
uwire->bitbang.setup_transfer = uwire_setup_transfer;
uwire->bitbang.txrx_bufs = uwire_txrx;
diff --git a/drivers/spi/spi-sh-sci.c b/drivers/spi/spi-sh-sci.c
index 148d615d2f38..3d560b154ad3 100644
--- a/drivers/spi/spi-sh-sci.c
+++ b/drivers/spi/spi-sh-sci.c
@@ -136,9 +136,9 @@ static int sh_sci_spi_probe(struct platform_device *dev)
}

/* setup spi bitbang adaptor */
- sp->bitbang.master = host;
- sp->bitbang.master->bus_num = sp->info->bus_num;
- sp->bitbang.master->num_chipselect = sp->info->num_chipselect;
+ sp->bitbang.ctlr = host;
+ sp->bitbang.ctlr->bus_num = sp->info->bus_num;
+ sp->bitbang.ctlr->num_chipselect = sp->info->num_chipselect;
sp->bitbang.chipselect = sh_sci_spi_chipselect;

sp->bitbang.txrx_word[SPI_MODE_0] = sh_sci_spi_txrx_mode0;
@@ -166,7 +166,7 @@ static int sh_sci_spi_probe(struct platform_device *dev)
setbits(sp, PIN_INIT, 0);
iounmap(sp->membase);
err1:
- spi_controller_put(sp->bitbang.master);
+ spi_controller_put(sp->bitbang.ctlr);
err0:
return ret;
}
@@ -178,7 +178,7 @@ static void sh_sci_spi_remove(struct platform_device *dev)
spi_bitbang_stop(&sp->bitbang);
setbits(sp, PIN_INIT, 0);
iounmap(sp->membase);
- spi_controller_put(sp->bitbang.master);
+ spi_controller_put(sp->bitbang.ctlr);
}

static struct platform_driver sh_sci_spi_drv = {
diff --git a/drivers/spi/spi-xilinx.c b/drivers/spi/spi-xilinx.c
index 12355957be97..7795328427a6 100644
--- a/drivers/spi/spi-xilinx.c
+++ b/drivers/spi/spi-xilinx.c
@@ -434,7 +434,7 @@ static int xilinx_spi_probe(struct platform_device *pdev)

xspi = spi_controller_get_devdata(host);
xspi->cs_inactive = 0xffffffff;
- xspi->bitbang.master = host;
+ xspi->bitbang.ctlr = host;
xspi->bitbang.chipselect = xilinx_spi_chipselect;
xspi->bitbang.setup_transfer = xilinx_spi_setup_transfer;
xspi->bitbang.txrx_bufs = xilinx_spi_txrx_bufs;
@@ -516,7 +516,7 @@ static void xilinx_spi_remove(struct platform_device *pdev)
/* Disable the global IPIF interrupt */
xspi->write_fn(0, regs_base + XIPIF_V123B_DGIER_OFFSET);

- spi_controller_put(xspi->bitbang.master);
+ spi_controller_put(xspi->bitbang.ctlr);
}

/* work with hotplug and coldplug */
diff --git a/drivers/spi/spi-xtensa-xtfpga.c b/drivers/spi/spi-xtensa-xtfpga.c
index 3c7721894376..3c2cda315397 100644
--- a/drivers/spi/spi-xtensa-xtfpga.c
+++ b/drivers/spi/spi-xtensa-xtfpga.c
@@ -93,7 +93,7 @@ static int xtfpga_spi_probe(struct platform_device *pdev)
host->dev.of_node = pdev->dev.of_node;

xspi = spi_controller_get_devdata(host);
- xspi->bitbang.master = host;
+ xspi->bitbang.ctlr = host;
xspi->bitbang.chipselect = xtfpga_spi_chipselect;
xspi->bitbang.txrx_word[SPI_MODE_0] = xtfpga_spi_txrx_word;
xspi->regs = devm_platform_ioremap_resource(pdev, 0);
diff --git a/include/linux/spi/spi_bitbang.h b/include/linux/spi/spi_bitbang.h
index 4444c2a992cb..b930eca2ef7b 100644
--- a/include/linux/spi/spi_bitbang.h
+++ b/include/linux/spi/spi_bitbang.h
@@ -10,7 +10,7 @@ struct spi_bitbang {
u8 use_dma;
u16 flags; /* extra spi->mode support */

- struct spi_master *master;
+ struct spi_controller *ctlr;

/* setup_transfer() changes clock and/or wordsize to match settings
* for this transfer; zeroes restore defaults from spi_device.
--
2.43.0