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authorLinus Torvalds <torvalds@linux-foundation.org>2022-03-21 18:33:57 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2022-03-21 18:33:57 -0700
commitad9c6ee642a61adae93dfa35582b5af16dc5173a (patch)
tree97c1878834a802847975bb9d51b73a3c8b6a9ae6 /drivers/mfd
parentd6ccf45113fb6799885950293401e4b104c9b276 (diff)
parent89b35e3f28514087d3f1e28e8f5634fbfd07c554 (diff)
Merge tag 'spi-v5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi updates from Mark Brown: "The overwhelming bulk of this pull request is a change from Uwe Kleine-König which changes the return type of the remove() function to void as part of some wider work he's doing to do this for all bus types, causing updates to most SPI device drivers. The branch with that on has been cross merged with a couple of other trees which added new SPI drivers this cycle, I'm not expecting any build issues resulting from the change. Otherwise it's been a relatively quiet release with some new device support, a few minor features and the welcome completion of the conversion of the subsystem to use GPIO descriptors rather than numbers: - Change return type of remove() to void. - Completion of the conversion of SPI controller drivers to use GPIO descriptors rather than numbers. - Quite a few DT schema conversions. - Support for multiple SPI devices on a bus in ACPI systems. - Big overhaul of the PXA2xx SPI driver. - Support for AMD AMDI0062, Intel Raptor Lake, Mediatek MT7986 and MT8186, nVidia Tegra210 and Tegra234, Renesas RZ/V2L, Tesla FSD and Sunplus SP7021" [ And this is obviously where that spi change that snuck into the regulator tree _should_ have been :^] * tag 'spi-v5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (124 commits) spi: fsi: Implement a timeout for polling status spi: Fix erroneous sgs value with min_t() spi: tegra20: Use of_device_get_match_data() spi: mediatek: add ipm design support for MT7986 spi: Add compatible for MT7986 spi: sun4i: fix typos in comments spi: mediatek: support tick_delay without enhance_timing spi: Update clock-names property for arm pl022 spi: rockchip-sfc: fix platform_get_irq.cocci warning spi: s3c64xx: Add spi port configuration for Tesla FSD SoC spi: dt-bindings: samsung: Add fsd spi compatible spi: topcliff-pch: Prevent usage of potentially stale DMA device spi: tegra210-quad: combined sequence mode spi: tegra210-quad: add acpi support spi: npcm-fiu: Fix typo ("npxm") spi: Fix Tegra QSPI example spi: qup: replace spin_lock_irqsave by spin_lock in hard IRQ spi: cadence: fix platform_get_irq.cocci warning spi: Update NXP Flexspi maintainer details dt-bindings: mfd: maxim,max77802: Convert to dtschema ...
Diffstat (limited to 'drivers/mfd')
-rw-r--r--drivers/mfd/arizona-spi.c4
-rw-r--r--drivers/mfd/da9052-spi.c3
-rw-r--r--drivers/mfd/ezx-pcap.c4
-rw-r--r--drivers/mfd/lpc_ich.c59
-rw-r--r--drivers/mfd/madera-spi.c4
-rw-r--r--drivers/mfd/mc13xxx-spi.c3
-rw-r--r--drivers/mfd/rsmu_spi.c4
-rw-r--r--drivers/mfd/stmpe-spi.c4
-rw-r--r--drivers/mfd/tps65912-spi.c4
9 files changed, 62 insertions, 27 deletions
diff --git a/drivers/mfd/arizona-spi.c b/drivers/mfd/arizona-spi.c
index 9fe06dda3782..03620c8efe34 100644
--- a/drivers/mfd/arizona-spi.c
+++ b/drivers/mfd/arizona-spi.c
@@ -206,13 +206,11 @@ static int arizona_spi_probe(struct spi_device *spi)
return arizona_dev_init(arizona);
}
-static int arizona_spi_remove(struct spi_device *spi)
+static void arizona_spi_remove(struct spi_device *spi)
{
struct arizona *arizona = spi_get_drvdata(spi);
arizona_dev_exit(arizona);
-
- return 0;
}
static const struct spi_device_id arizona_spi_ids[] = {
diff --git a/drivers/mfd/da9052-spi.c b/drivers/mfd/da9052-spi.c
index 5faf3766a5e2..b79a57b45c1e 100644
--- a/drivers/mfd/da9052-spi.c
+++ b/drivers/mfd/da9052-spi.c
@@ -55,12 +55,11 @@ static int da9052_spi_probe(struct spi_device *spi)
return da9052_device_init(da9052, id->driver_data);
}
-static int da9052_spi_remove(struct spi_device *spi)
+static void da9052_spi_remove(struct spi_device *spi)
{
struct da9052 *da9052 = spi_get_drvdata(spi);
da9052_device_exit(da9052);
- return 0;
}
static const struct spi_device_id da9052_spi_id[] = {
diff --git a/drivers/mfd/ezx-pcap.c b/drivers/mfd/ezx-pcap.c
index b14d3f98e1eb..3d5ce18aa9ae 100644
--- a/drivers/mfd/ezx-pcap.c
+++ b/drivers/mfd/ezx-pcap.c
@@ -390,7 +390,7 @@ static int pcap_add_subdev(struct pcap_chip *pcap,
return ret;
}
-static int ezx_pcap_remove(struct spi_device *spi)
+static void ezx_pcap_remove(struct spi_device *spi)
{
struct pcap_chip *pcap = spi_get_drvdata(spi);
unsigned long flags;
@@ -410,8 +410,6 @@ static int ezx_pcap_remove(struct spi_device *spi)
irq_set_chip_and_handler(i, NULL, NULL);
destroy_workqueue(pcap->workqueue);
-
- return 0;
}
static int ezx_pcap_probe(struct spi_device *spi)
diff --git a/drivers/mfd/lpc_ich.c b/drivers/mfd/lpc_ich.c
index f10e53187f67..9ffab9aafd81 100644
--- a/drivers/mfd/lpc_ich.c
+++ b/drivers/mfd/lpc_ich.c
@@ -63,6 +63,8 @@
#define SPIBASE_BYT 0x54
#define SPIBASE_BYT_SZ 512
#define SPIBASE_BYT_EN BIT(1)
+#define BYT_BCR 0xfc
+#define BYT_BCR_WPD BIT(0)
#define SPIBASE_LPT 0x3800
#define SPIBASE_LPT_SZ 512
@@ -1084,12 +1086,57 @@ wdt_done:
return ret;
}
+static bool lpc_ich_byt_set_writeable(void __iomem *base, void *data)
+{
+ u32 val;
+
+ val = readl(base + BYT_BCR);
+ if (!(val & BYT_BCR_WPD)) {
+ val |= BYT_BCR_WPD;
+ writel(val, base + BYT_BCR);
+ val = readl(base + BYT_BCR);
+ }
+
+ return val & BYT_BCR_WPD;
+}
+
+static bool lpc_ich_lpt_set_writeable(void __iomem *base, void *data)
+{
+ struct pci_dev *pdev = data;
+ u32 bcr;
+
+ pci_read_config_dword(pdev, BCR, &bcr);
+ if (!(bcr & BCR_WPD)) {
+ bcr |= BCR_WPD;
+ pci_write_config_dword(pdev, BCR, bcr);
+ pci_read_config_dword(pdev, BCR, &bcr);
+ }
+
+ return bcr & BCR_WPD;
+}
+
+static bool lpc_ich_bxt_set_writeable(void __iomem *base, void *data)
+{
+ unsigned int spi = PCI_DEVFN(13, 2);
+ struct pci_bus *bus = data;
+ u32 bcr;
+
+ pci_bus_read_config_dword(bus, spi, BCR, &bcr);
+ if (!(bcr & BCR_WPD)) {
+ bcr |= BCR_WPD;
+ pci_bus_write_config_dword(bus, spi, BCR, bcr);
+ pci_bus_read_config_dword(bus, spi, BCR, &bcr);
+ }
+
+ return bcr & BCR_WPD;
+}
+
static int lpc_ich_init_spi(struct pci_dev *dev)
{
struct lpc_ich_priv *priv = pci_get_drvdata(dev);
struct resource *res = &intel_spi_res[0];
struct intel_spi_boardinfo *info;
- u32 spi_base, rcba, bcr;
+ u32 spi_base, rcba;
info = devm_kzalloc(&dev->dev, sizeof(*info), GFP_KERNEL);
if (!info)
@@ -1103,6 +1150,8 @@ static int lpc_ich_init_spi(struct pci_dev *dev)
if (spi_base & SPIBASE_BYT_EN) {
res->start = spi_base & ~(SPIBASE_BYT_SZ - 1);
res->end = res->start + SPIBASE_BYT_SZ - 1;
+
+ info->set_writeable = lpc_ich_byt_set_writeable;
}
break;
@@ -1113,8 +1162,8 @@ static int lpc_ich_init_spi(struct pci_dev *dev)
res->start = spi_base + SPIBASE_LPT;
res->end = res->start + SPIBASE_LPT_SZ - 1;
- pci_read_config_dword(dev, BCR, &bcr);
- info->writeable = !!(bcr & BCR_WPD);
+ info->set_writeable = lpc_ich_lpt_set_writeable;
+ info->data = dev;
}
break;
@@ -1135,8 +1184,8 @@ static int lpc_ich_init_spi(struct pci_dev *dev)
res->start = spi_base & 0xfffffff0;
res->end = res->start + SPIBASE_APL_SZ - 1;
- pci_bus_read_config_dword(bus, spi, BCR, &bcr);
- info->writeable = !!(bcr & BCR_WPD);
+ info->set_writeable = lpc_ich_bxt_set_writeable;
+ info->data = bus;
}
pci_bus_write_config_byte(bus, p2sb, 0xe1, 0x1);
diff --git a/drivers/mfd/madera-spi.c b/drivers/mfd/madera-spi.c
index e860f5ff0933..da84eb50e53a 100644
--- a/drivers/mfd/madera-spi.c
+++ b/drivers/mfd/madera-spi.c
@@ -112,13 +112,11 @@ static int madera_spi_probe(struct spi_device *spi)
return madera_dev_init(madera);
}
-static int madera_spi_remove(struct spi_device *spi)
+static void madera_spi_remove(struct spi_device *spi)
{
struct madera *madera = spi_get_drvdata(spi);
madera_dev_exit(madera);
-
- return 0;
}
static const struct spi_device_id madera_spi_ids[] = {
diff --git a/drivers/mfd/mc13xxx-spi.c b/drivers/mfd/mc13xxx-spi.c
index 4d8913d647e6..f803527e5819 100644
--- a/drivers/mfd/mc13xxx-spi.c
+++ b/drivers/mfd/mc13xxx-spi.c
@@ -166,10 +166,9 @@ static int mc13xxx_spi_probe(struct spi_device *spi)
return mc13xxx_common_init(&spi->dev);
}
-static int mc13xxx_spi_remove(struct spi_device *spi)
+static void mc13xxx_spi_remove(struct spi_device *spi)
{
mc13xxx_common_exit(&spi->dev);
- return 0;
}
static struct spi_driver mc13xxx_spi_driver = {
diff --git a/drivers/mfd/rsmu_spi.c b/drivers/mfd/rsmu_spi.c
index fec2b4ec477c..d2f3d8f1e05a 100644
--- a/drivers/mfd/rsmu_spi.c
+++ b/drivers/mfd/rsmu_spi.c
@@ -220,13 +220,11 @@ static int rsmu_spi_probe(struct spi_device *client)
return rsmu_core_init(rsmu);
}
-static int rsmu_spi_remove(struct spi_device *client)
+static void rsmu_spi_remove(struct spi_device *client)
{
struct rsmu_ddata *rsmu = spi_get_drvdata(client);
rsmu_core_exit(rsmu);
-
- return 0;
}
static const struct spi_device_id rsmu_spi_id[] = {
diff --git a/drivers/mfd/stmpe-spi.c b/drivers/mfd/stmpe-spi.c
index 6c5915016be5..ad8055a0e286 100644
--- a/drivers/mfd/stmpe-spi.c
+++ b/drivers/mfd/stmpe-spi.c
@@ -102,13 +102,11 @@ stmpe_spi_probe(struct spi_device *spi)
return stmpe_probe(&spi_ci, id->driver_data);
}
-static int stmpe_spi_remove(struct spi_device *spi)
+static void stmpe_spi_remove(struct spi_device *spi)
{
struct stmpe *stmpe = spi_get_drvdata(spi);
stmpe_remove(stmpe);
-
- return 0;
}
static const struct of_device_id stmpe_spi_of_match[] = {
diff --git a/drivers/mfd/tps65912-spi.c b/drivers/mfd/tps65912-spi.c
index d701926aa46e..bba38fbc781d 100644
--- a/drivers/mfd/tps65912-spi.c
+++ b/drivers/mfd/tps65912-spi.c
@@ -50,13 +50,11 @@ static int tps65912_spi_probe(struct spi_device *spi)
return tps65912_device_init(tps);
}
-static int tps65912_spi_remove(struct spi_device *spi)
+static void tps65912_spi_remove(struct spi_device *spi)
{
struct tps65912 *tps = spi_get_drvdata(spi);
tps65912_device_exit(tps);
-
- return 0;
}
static const struct spi_device_id tps65912_spi_id_table[] = {