* [PATCH 6.1.y 2/4] spi: mpc5xxx-psc: Remove unused platform_data
2026-09-10 12:52 ` [PATCH 6.1.y 1/4] spi: bcm63xx-hsspi: Disable spi mem dual io read op support Sasha Levin
@ 2026-09-10 12:52 ` Sasha Levin
2026-09-10 12:52 ` [PATCH 6.1.y 3/4] spi: Replace all spi->chip_select and spi->cs_gpiod references with function call Sasha Levin
2026-09-10 12:52 ` [PATCH 6.1.y 4/4] spi: bcm63xx-hsspi: disable clocks on resume failure Sasha Levin
2 siblings, 0 replies; 5+ messages in thread
From: Sasha Levin @ 2026-09-10 12:52 UTC (permalink / raw)
To: stable; +Cc: Rob Herring, Mark Brown, Sasha Levin
From: Rob Herring <robh@kernel.org>
[ Upstream commit 04725901d9933b3134e6dee6b5bc1efb67f8d43f ]
The platform_data for the MPC5xxx PSC SPI controllers is never used, so
remove it and the resulting code which depends on it.
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20230217-dt-mpc5xxx-spi-v1-1-3be8602fce1e@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Stable-dep-of: 3b0cee026640 ("spi: bcm63xx-hsspi: disable clocks on resume failure")
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/spi/spi-mpc512x-psc.c | 28 ++++---------------------
drivers/spi/spi-mpc52xx-psc.c | 39 +++--------------------------------
2 files changed, 7 insertions(+), 60 deletions(-)
diff --git a/drivers/spi/spi-mpc512x-psc.c b/drivers/spi/spi-mpc512x-psc.c
index 03630359ce70d..0b4d49ef84de8 100644
--- a/drivers/spi/spi-mpc512x-psc.c
+++ b/drivers/spi/spi-mpc512x-psc.c
@@ -22,7 +22,6 @@
#include <linux/delay.h>
#include <linux/clk.h>
#include <linux/spi/spi.h>
-#include <linux/fsl_devices.h>
#include <asm/mpc52xx_psc.h>
enum {
@@ -51,8 +50,6 @@ enum {
__ret; })
struct mpc512x_psc_spi {
- void (*cs_control)(struct spi_device *spi, bool on);
-
/* driver internal data */
int type;
void __iomem *psc;
@@ -128,26 +125,16 @@ static void mpc512x_psc_spi_activate_cs(struct spi_device *spi)
mps->bits_per_word = cs->bits_per_word;
if (spi->cs_gpiod) {
- if (mps->cs_control)
- /* boardfile override */
- mps->cs_control(spi, (spi->mode & SPI_CS_HIGH) ? 1 : 0);
- else
- /* gpiolib will deal with the inversion */
- gpiod_set_value(spi->cs_gpiod, 1);
+ /* gpiolib will deal with the inversion */
+ gpiod_set_value(spi->cs_gpiod, 1);
}
}
static void mpc512x_psc_spi_deactivate_cs(struct spi_device *spi)
{
- struct mpc512x_psc_spi *mps = spi_master_get_devdata(spi->master);
-
if (spi->cs_gpiod) {
- if (mps->cs_control)
- /* boardfile override */
- mps->cs_control(spi, (spi->mode & SPI_CS_HIGH) ? 0 : 1);
- else
- /* gpiolib will deal with the inversion */
- gpiod_set_value(spi->cs_gpiod, 0);
+ /* gpiolib will deal with the inversion */
+ gpiod_set_value(spi->cs_gpiod, 0);
}
}
@@ -474,7 +461,6 @@ static irqreturn_t mpc512x_psc_spi_isr(int irq, void *dev_id)
static int mpc512x_psc_spi_do_probe(struct device *dev, u32 regaddr,
u32 size, unsigned int irq)
{
- struct fsl_spi_platform_data *pdata = dev_get_platdata(dev);
struct mpc512x_psc_spi *mps;
struct spi_master *master;
int ret;
@@ -490,12 +476,6 @@ static int mpc512x_psc_spi_do_probe(struct device *dev, u32 regaddr,
mps->type = (int)of_device_get_match_data(dev);
mps->irq = irq;
- if (pdata) {
- mps->cs_control = pdata->cs_control;
- master->bus_num = pdata->bus_num;
- master->num_chipselect = pdata->max_chipselect;
- }
-
master->mode_bits = SPI_CPOL | SPI_CPHA | SPI_CS_HIGH | SPI_LSB_FIRST;
master->setup = mpc512x_psc_spi_setup;
master->prepare_transfer_hardware = mpc512x_psc_spi_prep_xfer_hw;
diff --git a/drivers/spi/spi-mpc52xx-psc.c b/drivers/spi/spi-mpc52xx-psc.c
index 609311231e64b..604868df913c4 100644
--- a/drivers/spi/spi-mpc52xx-psc.c
+++ b/drivers/spi/spi-mpc52xx-psc.c
@@ -18,7 +18,6 @@
#include <linux/io.h>
#include <linux/delay.h>
#include <linux/spi/spi.h>
-#include <linux/fsl_devices.h>
#include <linux/slab.h>
#include <linux/of_irq.h>
@@ -28,10 +27,6 @@
#define MCLK 20000000 /* PSC port MClk in hz */
struct mpc52xx_psc_spi {
- /* fsl_spi_platform data */
- void (*cs_control)(struct spi_device *spi, bool on);
- u32 sysclk;
-
/* driver internal data */
struct mpc52xx_psc __iomem *psc;
struct mpc52xx_psc_fifo __iomem *fifo;
@@ -101,17 +96,6 @@ static void mpc52xx_psc_spi_activate_cs(struct spi_device *spi)
ccr |= (MCLK / 1000000 - 1) & 0xFF;
out_be16((u16 __iomem *)&psc->ccr, ccr);
mps->bits_per_word = cs->bits_per_word;
-
- if (mps->cs_control)
- mps->cs_control(spi, (spi->mode & SPI_CS_HIGH) ? 1 : 0);
-}
-
-static void mpc52xx_psc_spi_deactivate_cs(struct spi_device *spi)
-{
- struct mpc52xx_psc_spi *mps = spi_master_get_devdata(spi->master);
-
- if (mps->cs_control)
- mps->cs_control(spi, (spi->mode & SPI_CS_HIGH) ? 0 : 1);
}
#define MPC52xx_PSC_BUFSIZE (MPC52xx_PSC_RFNUM_MASK + 1)
@@ -220,14 +204,9 @@ int mpc52xx_psc_spi_transfer_one_message(struct spi_controller *ctlr,
m->actual_length += t->len;
spi_transfer_delay_exec(t);
-
- if (cs_change)
- mpc52xx_psc_spi_deactivate_cs(spi);
}
m->status = status;
- if (status || !cs_change)
- mpc52xx_psc_spi_deactivate_cs(spi);
mpc52xx_psc_spi_transfer_setup(spi, NULL);
@@ -269,7 +248,7 @@ static int mpc52xx_psc_spi_port_config(int psc_id, struct mpc52xx_psc_spi *mps)
int ret;
/* default sysclk is 512MHz */
- mclken_div = (mps->sysclk ? mps->sysclk : 512000000) / MCLK;
+ mclken_div = 512000000 / MCLK;
ret = mpc52xx_set_psc_clkdiv(psc_id, mclken_div);
if (ret)
return ret;
@@ -317,7 +296,6 @@ static irqreturn_t mpc52xx_psc_spi_isr(int irq, void *dev_id)
static int mpc52xx_psc_spi_do_probe(struct device *dev, u32 regaddr,
u32 size, unsigned int irq, s16 bus_num)
{
- struct fsl_spi_platform_data *pdata = dev_get_platdata(dev);
struct mpc52xx_psc_spi *mps;
struct spi_master *master;
int ret;
@@ -333,19 +311,8 @@ static int mpc52xx_psc_spi_do_probe(struct device *dev, u32 regaddr,
master->mode_bits = SPI_CPOL | SPI_CPHA | SPI_CS_HIGH | SPI_LSB_FIRST;
mps->irq = irq;
- if (pdata == NULL) {
- dev_warn(dev,
- "probe called without platform data, no cs_control function will be called\n");
- mps->cs_control = NULL;
- mps->sysclk = 0;
- master->bus_num = bus_num;
- master->num_chipselect = 255;
- } else {
- mps->cs_control = pdata->cs_control;
- mps->sysclk = pdata->sysclk;
- master->bus_num = pdata->bus_num;
- master->num_chipselect = pdata->max_chipselect;
- }
+ master->bus_num = bus_num;
+ master->num_chipselect = 255;
master->setup = mpc52xx_psc_spi_setup;
master->transfer_one_message = mpc52xx_psc_spi_transfer_one_message;
master->cleanup = mpc52xx_psc_spi_cleanup;
--
2.53.0
^ permalink raw reply related [flat|nested] 5+ messages in thread* [PATCH 6.1.y 3/4] spi: Replace all spi->chip_select and spi->cs_gpiod references with function call
2026-09-10 12:52 ` [PATCH 6.1.y 1/4] spi: bcm63xx-hsspi: Disable spi mem dual io read op support Sasha Levin
2026-09-10 12:52 ` [PATCH 6.1.y 2/4] spi: mpc5xxx-psc: Remove unused platform_data Sasha Levin
@ 2026-09-10 12:52 ` Sasha Levin
2026-09-10 12:52 ` [PATCH 6.1.y 4/4] spi: bcm63xx-hsspi: disable clocks on resume failure Sasha Levin
2 siblings, 0 replies; 5+ messages in thread
From: Sasha Levin @ 2026-09-10 12:52 UTC (permalink / raw)
To: stable
Cc: Amit Kumar Mahapatra via Alsa-devel, Amit Kumar Mahapatra,
Heiko Stuebner, Michal Simek, Cédric Le Goater, Dhruva Gole,
Patrice Chotard, William Zhang, Serge Semin, Mark Brown,
Sasha Levin
From: Amit Kumar Mahapatra via Alsa-devel <alsa-devel@alsa-project.org>
[ Upstream commit 9e264f3f85a56cc109cc2d6010a48aa89d5c1ff1 ]
Supporting multi-cs in spi drivers would require the chip_select & cs_gpiod
members of struct spi_device to be an array. But changing the type of these
members to array would break the spi driver functionality. To make the
transition smoother introduced four new APIs to get/set the
spi->chip_select & spi->cs_gpiod and replaced all spi->chip_select and
spi->cs_gpiod references with get or set API calls.
While adding multi-cs support in further patches the chip_select & cs_gpiod
members of the spi_device structure would be converted to arrays & the
"idx" parameter of the APIs would be used as array index i.e.,
spi->chip_select[idx] & spi->cs_gpiod[idx] respectively.
Signed-off-by: Amit Kumar Mahapatra <amit.kumar-mahapatra@amd.com>
Acked-by: Heiko Stuebner <heiko@sntech.de> # Rockchip drivers
Reviewed-by: Michal Simek <michal.simek@amd.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org> # Aspeed driver
Reviewed-by: Dhruva Gole <d-gole@ti.com> # SPI Cadence QSPI
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com> # spi-stm32-qspi
Acked-by: William Zhang <william.zhang@broadcom.com> # bcm63xx-hsspi driver
Reviewed-by: Serge Semin <fancer.lancer@gmail.com> # DW SSI part
Link: https://lore.kernel.org/r/167847070432.26.15076794204368669839@mailman-core.alsa-project.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Stable backport notes:
Limit this dependency to spi-bcm63xx-hsspi.c, the driver affected by
3b0cee026640 ("spi: bcm63xx-hsspi: disable clocks on resume failure").
Convert its eleven existing chip-select accesses using the accessor
already provided by this stable tree. Drop conversions in other drivers,
SPI memory core and trace events, which are unrelated to the target.
Keep the stable driver's existing transfer implementation; do not import
upstream prepend support, additional helpers or drivers absent from 6.1.
In the existing resume function, use the spi_controller type/accessors
and the local name host. The old spi_master names are compatibility
aliases here, so this preserves behavior while allowing the target's
spi_controller_resume(host) error-handling hunk to apply unchanged.
No functions are added.
[ sashal: Reduced backport -- upstream 9e264f3f85a56 touches 92 file(s), this
backport carries 1. Not backported here:
drivers/spi/spi-altera-core.c
drivers/spi/spi-amd.c
drivers/spi/spi-ar934x.c
drivers/spi/spi-armada-3700.c
drivers/spi/spi-aspeed-smc.c
drivers/spi/spi-at91-usart.c
drivers/spi/spi-ath79.c
drivers/spi/spi-atmel.c
... and 83 more
This note is generated from the file lists only; see the resolution record
for the reasoning. ]
Stable-dep-of: 3b0cee026640 ("spi: bcm63xx-hsspi: disable clocks on resume failure")
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/spi/spi-bcm63xx-hsspi.c | 28 ++++++++++++++--------------
1 file changed, 14 insertions(+), 14 deletions(-)
diff --git a/drivers/spi/spi-bcm63xx-hsspi.c b/drivers/spi/spi-bcm63xx-hsspi.c
index 9948c2a459c12..16e2873c4d4b3 100644
--- a/drivers/spi/spi-bcm63xx-hsspi.c
+++ b/drivers/spi/spi-bcm63xx-hsspi.c
@@ -132,7 +132,7 @@ static void bcm63xx_hsspi_set_cs(struct bcm63xx_hsspi *bs, unsigned int cs,
static void bcm63xx_hsspi_set_clk(struct bcm63xx_hsspi *bs,
struct spi_device *spi, int hz)
{
- unsigned int profile = spi->chip_select;
+ unsigned int profile = spi_get_chipselect(spi, 0);
u32 reg;
reg = DIV_ROUND_UP(2048, DIV_ROUND_UP(bs->speed_hz, hz));
@@ -159,7 +159,7 @@ static void bcm63xx_hsspi_set_clk(struct bcm63xx_hsspi *bs,
static int bcm63xx_hsspi_do_txrx(struct spi_device *spi, struct spi_transfer *t)
{
struct bcm63xx_hsspi *bs = spi_master_get_devdata(spi->master);
- unsigned int chip_select = spi->chip_select;
+ unsigned int chip_select = spi_get_chipselect(spi, 0);
u16 opcode = 0;
int pending = t->len;
int step_size = HSSPI_BUFFER_LEN;
@@ -168,7 +168,7 @@ static int bcm63xx_hsspi_do_txrx(struct spi_device *spi, struct spi_transfer *t)
u32 val = 0;
bcm63xx_hsspi_set_clk(bs, spi, t->speed_hz);
- bcm63xx_hsspi_set_cs(bs, spi->chip_select, true);
+ bcm63xx_hsspi_set_cs(bs, spi_get_chipselect(spi, 0), true);
if (tx && rx)
opcode = HSSPI_OP_READ_WRITE;
@@ -236,14 +236,14 @@ static int bcm63xx_hsspi_setup(struct spi_device *spi)
u32 reg;
reg = __raw_readl(bs->regs +
- HSSPI_PROFILE_SIGNAL_CTRL_REG(spi->chip_select));
+ HSSPI_PROFILE_SIGNAL_CTRL_REG(spi_get_chipselect(spi, 0)));
reg &= ~(SIGNAL_CTRL_LAUNCH_RISING | SIGNAL_CTRL_LATCH_RISING);
if (spi->mode & SPI_CPHA)
reg |= SIGNAL_CTRL_LAUNCH_RISING;
else
reg |= SIGNAL_CTRL_LATCH_RISING;
__raw_writel(reg, bs->regs +
- HSSPI_PROFILE_SIGNAL_CTRL_REG(spi->chip_select));
+ HSSPI_PROFILE_SIGNAL_CTRL_REG(spi_get_chipselect(spi, 0)));
mutex_lock(&bs->bus_mutex);
reg = __raw_readl(bs->regs + HSSPI_GLOBAL_CTRL_REG);
@@ -251,16 +251,16 @@ static int bcm63xx_hsspi_setup(struct spi_device *spi)
/* only change actual polarities if there is no transfer */
if ((reg & GLOBAL_CTRL_CS_POLARITY_MASK) == bs->cs_polarity) {
if (spi->mode & SPI_CS_HIGH)
- reg |= BIT(spi->chip_select);
+ reg |= BIT(spi_get_chipselect(spi, 0));
else
- reg &= ~BIT(spi->chip_select);
+ reg &= ~BIT(spi_get_chipselect(spi, 0));
__raw_writel(reg, bs->regs + HSSPI_GLOBAL_CTRL_REG);
}
if (spi->mode & SPI_CS_HIGH)
- bs->cs_polarity |= BIT(spi->chip_select);
+ bs->cs_polarity |= BIT(spi_get_chipselect(spi, 0));
else
- bs->cs_polarity &= ~BIT(spi->chip_select);
+ bs->cs_polarity &= ~BIT(spi_get_chipselect(spi, 0));
mutex_unlock(&bs->bus_mutex);
@@ -291,7 +291,7 @@ static int bcm63xx_hsspi_transfer_one(struct spi_master *master,
* e. At the end restore the polarities again to their default values.
*/
- dummy_cs = !spi->chip_select;
+ dummy_cs = !spi_get_chipselect(spi, 0);
bcm63xx_hsspi_set_cs(bs, dummy_cs, true);
list_for_each_entry(t, &msg->transfers, transfer_list) {
@@ -304,7 +304,7 @@ static int bcm63xx_hsspi_transfer_one(struct spi_master *master,
spi_transfer_delay_exec(t);
if (t->cs_change)
- bcm63xx_hsspi_set_cs(bs, spi->chip_select, false);
+ bcm63xx_hsspi_set_cs(bs, spi_get_chipselect(spi, 0), false);
}
mutex_lock(&bs->bus_mutex);
@@ -518,8 +518,8 @@ static int bcm63xx_hsspi_suspend(struct device *dev)
static int bcm63xx_hsspi_resume(struct device *dev)
{
- struct spi_master *master = dev_get_drvdata(dev);
- struct bcm63xx_hsspi *bs = spi_master_get_devdata(master);
+ struct spi_controller *host = dev_get_drvdata(dev);
+ struct bcm63xx_hsspi *bs = spi_controller_get_devdata(host);
int ret;
ret = clk_prepare_enable(bs->clk);
@@ -534,7 +534,7 @@ static int bcm63xx_hsspi_resume(struct device *dev)
}
}
- spi_master_resume(master);
+ spi_controller_resume(host);
return 0;
}
--
2.53.0
^ permalink raw reply related [flat|nested] 5+ messages in thread