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-rw-r--r--drivers/i2c/busses/i2c-at91-master.c1
-rw-r--r--drivers/i2c/busses/i2c-at91.h2
-rw-r--r--drivers/i2c/busses/i2c-exynos5.c5
-rw-r--r--drivers/i2c/busses/i2c-imx.c20
-rw-r--r--drivers/i2c/busses/i2c-ismt.c19
-rw-r--r--drivers/i2c/busses/i2c-mv64xxx.c29
-rw-r--r--drivers/i2c/busses/i2c-mxs.c22
-rw-r--r--drivers/i2c/busses/i2c-nvidia-gpu.c10
-rw-r--r--drivers/i2c/busses/i2c-ocores.c25
-rw-r--r--drivers/i2c/busses/i2c-owl.c74
-rw-r--r--drivers/i2c/busses/i2c-pca-platform.c4
-rw-r--r--drivers/i2c/busses/i2c-qcom-geni.c18
12 files changed, 124 insertions, 105 deletions
diff --git a/drivers/i2c/busses/i2c-at91-master.c b/drivers/i2c/busses/i2c-at91-master.c
index 66864f9cf7ac..1cceb6866689 100644
--- a/drivers/i2c/busses/i2c-at91-master.c
+++ b/drivers/i2c/busses/i2c-at91-master.c
@@ -26,7 +26,6 @@
#include <linux/of_device.h>
#include <linux/pinctrl/consumer.h>
#include <linux/platform_device.h>
-#include <linux/platform_data/dma-atmel.h>
#include <linux/pm_runtime.h>
#include "i2c-at91.h"
diff --git a/drivers/i2c/busses/i2c-at91.h b/drivers/i2c/busses/i2c-at91.h
index eae673ae786c..942e9c3973bb 100644
--- a/drivers/i2c/busses/i2c-at91.h
+++ b/drivers/i2c/busses/i2c-at91.h
@@ -18,7 +18,6 @@
#include <linux/dma-mapping.h>
#include <linux/dmaengine.h>
#include <linux/i2c.h>
-#include <linux/platform_data/dma-atmel.h>
#include <linux/platform_device.h>
#define AT91_I2C_TIMEOUT msecs_to_jiffies(100) /* transfer timeout */
@@ -123,7 +122,6 @@ struct at91_twi_pdata {
bool has_adv_dig_filtr;
bool has_ana_filtr;
bool has_clear_cmd;
- struct at_dma_slave dma_slave;
};
struct at91_twi_dma {
diff --git a/drivers/i2c/busses/i2c-exynos5.c b/drivers/i2c/busses/i2c-exynos5.c
index 6ce3ec03b595..20a9881a0d6c 100644
--- a/drivers/i2c/busses/i2c-exynos5.c
+++ b/drivers/i2c/busses/i2c-exynos5.c
@@ -778,11 +778,8 @@ static int exynos5_i2c_probe(struct platform_device *pdev)
init_completion(&i2c->msg_complete);
i2c->irq = ret = platform_get_irq(pdev, 0);
- if (ret <= 0) {
- dev_err(&pdev->dev, "cannot find HS-I2C IRQ\n");
- ret = -EINVAL;
+ if (ret < 0)
goto err_clk;
- }
ret = devm_request_irq(&pdev->dev, i2c->irq, exynos5_i2c_irq,
IRQF_NO_SUSPEND, dev_name(&pdev->dev), i2c);
diff --git a/drivers/i2c/busses/i2c-imx.c b/drivers/i2c/busses/i2c-imx.c
index e6f8d6e45a15..a04d17c28339 100644
--- a/drivers/i2c/busses/i2c-imx.c
+++ b/drivers/i2c/busses/i2c-imx.c
@@ -233,19 +233,6 @@ static struct imx_i2c_hwdata vf610_i2c_hwdata = {
};
-static const struct platform_device_id imx_i2c_devtype[] = {
- {
- .name = "imx1-i2c",
- .driver_data = (kernel_ulong_t)&imx1_i2c_hwdata,
- }, {
- .name = "imx21-i2c",
- .driver_data = (kernel_ulong_t)&imx21_i2c_hwdata,
- }, {
- /* sentinel */
- }
-};
-MODULE_DEVICE_TABLE(platform, imx_i2c_devtype);
-
static const struct of_device_id i2c_imx_dt_ids[] = {
{ .compatible = "fsl,imx1-i2c", .data = &imx1_i2c_hwdata, },
{ .compatible = "fsl,imx21-i2c", .data = &imx21_i2c_hwdata, },
@@ -1169,11 +1156,7 @@ static int i2c_imx_probe(struct platform_device *pdev)
return -ENOMEM;
match = device_get_match_data(&pdev->dev);
- if (match)
- i2c_imx->hwdata = match;
- else
- i2c_imx->hwdata = (struct imx_i2c_hwdata *)
- platform_get_device_id(pdev)->driver_data;
+ i2c_imx->hwdata = match;
/* Setup i2c_imx driver structure */
strlcpy(i2c_imx->adapter.name, pdev->name, sizeof(i2c_imx->adapter.name));
@@ -1344,7 +1327,6 @@ static struct platform_driver i2c_imx_driver = {
.of_match_table = i2c_imx_dt_ids,
.acpi_match_table = i2c_imx_acpi_ids,
},
- .id_table = imx_i2c_devtype,
};
static int __init i2c_adap_imx_init(void)
diff --git a/drivers/i2c/busses/i2c-ismt.c b/drivers/i2c/busses/i2c-ismt.c
index a35a27c320e7..a6187cbec2c9 100644
--- a/drivers/i2c/busses/i2c-ismt.c
+++ b/drivers/i2c/busses/i2c-ismt.c
@@ -53,7 +53,7 @@
* Features supported by this driver:
* Hardware PEC yes
* Block buffer yes
- * Block process call transaction no
+ * Block process call transaction yes
* Slave mode no
*/
@@ -332,7 +332,8 @@ static int ismt_process_desc(const struct ismt_desc *desc,
if (desc->status & ISMT_DESC_SCS) {
if (read_write == I2C_SMBUS_WRITE &&
- size != I2C_SMBUS_PROC_CALL)
+ size != I2C_SMBUS_PROC_CALL &&
+ size != I2C_SMBUS_BLOCK_PROC_CALL)
return 0;
switch (size) {
@@ -345,6 +346,7 @@ static int ismt_process_desc(const struct ismt_desc *desc,
data->word = dma_buffer[0] | (dma_buffer[1] << 8);
break;
case I2C_SMBUS_BLOCK_DATA:
+ case I2C_SMBUS_BLOCK_PROC_CALL:
if (desc->rxbytes != dma_buffer[0] + 1)
return -EMSGSIZE;
@@ -518,6 +520,18 @@ static int ismt_access(struct i2c_adapter *adap, u16 addr,
}
break;
+ case I2C_SMBUS_BLOCK_PROC_CALL:
+ dev_dbg(dev, "I2C_SMBUS_BLOCK_PROC_CALL\n");
+ dma_size = I2C_SMBUS_BLOCK_MAX;
+ desc->tgtaddr_rw = ISMT_DESC_ADDR_RW(addr, 1);
+ desc->wr_len_cmd = data->block[0] + 1;
+ desc->rd_len = dma_size;
+ desc->control |= ISMT_DESC_BLK;
+ dma_direction = DMA_BIDIRECTIONAL;
+ dma_buffer[0] = command;
+ memcpy(&dma_buffer[1], &data->block[1], data->block[0]);
+ break;
+
case I2C_SMBUS_I2C_BLOCK_DATA:
/* Make sure the length is valid */
if (data->block[0] < 1)
@@ -624,6 +638,7 @@ static u32 ismt_func(struct i2c_adapter *adap)
I2C_FUNC_SMBUS_BYTE_DATA |
I2C_FUNC_SMBUS_WORD_DATA |
I2C_FUNC_SMBUS_PROC_CALL |
+ I2C_FUNC_SMBUS_BLOCK_PROC_CALL |
I2C_FUNC_SMBUS_BLOCK_DATA |
I2C_FUNC_SMBUS_I2C_BLOCK |
I2C_FUNC_SMBUS_PEC;
diff --git a/drivers/i2c/busses/i2c-mv64xxx.c b/drivers/i2c/busses/i2c-mv64xxx.c
index e0e45fc19b8f..5cfe70aedced 100644
--- a/drivers/i2c/busses/i2c-mv64xxx.c
+++ b/drivers/i2c/busses/i2c-mv64xxx.c
@@ -17,6 +17,7 @@
#include <linux/interrupt.h>
#include <linux/mv643xx_i2c.h>
#include <linux/platform_device.h>
+#include <linux/pinctrl/consumer.h>
#include <linux/reset.h>
#include <linux/io.h>
#include <linux/of.h>
@@ -147,6 +148,7 @@ struct mv64xxx_i2c_data {
bool irq_clear_inverted;
/* Clk div is 2 to the power n, not 2 to the power n + 1 */
bool clk_n_base_0;
+ struct i2c_bus_recovery_info rinfo;
};
static struct mv64xxx_i2c_regs mv64xxx_i2c_regs_mv64xxx = {
@@ -325,7 +327,8 @@ mv64xxx_i2c_fsm(struct mv64xxx_i2c_data *drv_data, u32 status)
drv_data->msg->flags);
drv_data->action = MV64XXX_I2C_ACTION_SEND_STOP;
mv64xxx_i2c_hw_init(drv_data);
- drv_data->rc = -EIO;
+ i2c_recover_bus(&drv_data->adapter);
+ drv_data->rc = -EAGAIN;
}
}
@@ -561,6 +564,7 @@ mv64xxx_i2c_wait_for_completion(struct mv64xxx_i2c_data *drv_data)
"time_left: %d\n", drv_data->block,
(int)time_left);
mv64xxx_i2c_hw_init(drv_data);
+ i2c_recover_bus(&drv_data->adapter);
}
} else
spin_unlock_irqrestore(&drv_data->lock, flags);
@@ -870,6 +874,25 @@ mv64xxx_of_config(struct mv64xxx_i2c_data *drv_data,
}
#endif /* CONFIG_OF */
+static int mv64xxx_i2c_init_recovery_info(struct mv64xxx_i2c_data *drv_data,
+ struct device *dev)
+{
+ struct i2c_bus_recovery_info *rinfo = &drv_data->rinfo;
+
+ rinfo->pinctrl = devm_pinctrl_get(dev);
+ if (IS_ERR(rinfo->pinctrl)) {
+ if (PTR_ERR(rinfo->pinctrl) == -EPROBE_DEFER)
+ return -EPROBE_DEFER;
+ dev_info(dev, "can't get pinctrl, bus recovery not supported\n");
+ return PTR_ERR(rinfo->pinctrl);
+ } else if (!rinfo->pinctrl) {
+ return -ENODEV;
+ }
+
+ drv_data->adapter.bus_recovery_info = rinfo;
+ return 0;
+}
+
static int
mv64xxx_i2c_probe(struct platform_device *pd)
{
@@ -926,6 +949,10 @@ mv64xxx_i2c_probe(struct platform_device *pd)
goto exit_reset;
}
+ rc = mv64xxx_i2c_init_recovery_info(drv_data, &pd->dev);
+ if (rc == -EPROBE_DEFER)
+ goto exit_reset;
+
drv_data->adapter.dev.parent = &pd->dev;
drv_data->adapter.algo = &mv64xxx_i2c_algo;
drv_data->adapter.owner = THIS_MODULE;
diff --git a/drivers/i2c/busses/i2c-mxs.c b/drivers/i2c/busses/i2c-mxs.c
index c4b08a924461..f97243f02231 100644
--- a/drivers/i2c/busses/i2c-mxs.c
+++ b/drivers/i2c/busses/i2c-mxs.c
@@ -781,28 +781,15 @@ static int mxs_i2c_get_ofdata(struct mxs_i2c_dev *i2c)
return 0;
}
-static const struct platform_device_id mxs_i2c_devtype[] = {
- {
- .name = "imx23-i2c",
- .driver_data = MXS_I2C_V1,
- }, {
- .name = "imx28-i2c",
- .driver_data = MXS_I2C_V2,
- }, { /* sentinel */ }
-};
-MODULE_DEVICE_TABLE(platform, mxs_i2c_devtype);
-
static const struct of_device_id mxs_i2c_dt_ids[] = {
- { .compatible = "fsl,imx23-i2c", .data = &mxs_i2c_devtype[0], },
- { .compatible = "fsl,imx28-i2c", .data = &mxs_i2c_devtype[1], },
+ { .compatible = "fsl,imx23-i2c", .data = (void *)MXS_I2C_V1, },
+ { .compatible = "fsl,imx28-i2c", .data = (void *)MXS_I2C_V2, },
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(of, mxs_i2c_dt_ids);
static int mxs_i2c_probe(struct platform_device *pdev)
{
- const struct of_device_id *of_id =
- of_match_device(mxs_i2c_dt_ids, &pdev->dev);
struct device *dev = &pdev->dev;
struct mxs_i2c_dev *i2c;
struct i2c_adapter *adap;
@@ -812,10 +799,7 @@ static int mxs_i2c_probe(struct platform_device *pdev)
if (!i2c)
return -ENOMEM;
- if (of_id) {
- const struct platform_device_id *device_id = of_id->data;
- i2c->dev_type = device_id->driver_data;
- }
+ i2c->dev_type = (enum mxs_i2c_devtype)of_device_get_match_data(&pdev->dev);
i2c->regs = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(i2c->regs))
diff --git a/drivers/i2c/busses/i2c-nvidia-gpu.c b/drivers/i2c/busses/i2c-nvidia-gpu.c
index f9a69b109e5c..6b20601ffb13 100644
--- a/drivers/i2c/busses/i2c-nvidia-gpu.c
+++ b/drivers/i2c/busses/i2c-nvidia-gpu.c
@@ -353,15 +353,7 @@ static void gpu_i2c_remove(struct pci_dev *pdev)
pci_free_irq_vectors(pdev);
}
-/*
- * We need gpu_i2c_suspend() even if it is stub, for runtime pm to work
- * correctly. Without it, lspci shows runtime pm status as "D0" for the card.
- * Documentation/power/pci.rst also insists for driver to provide this.
- */
-static __maybe_unused int gpu_i2c_suspend(struct device *dev)
-{
- return 0;
-}
+#define gpu_i2c_suspend NULL
static __maybe_unused int gpu_i2c_resume(struct device *dev)
{
diff --git a/drivers/i2c/busses/i2c-ocores.c b/drivers/i2c/busses/i2c-ocores.c
index f5fc75b65a19..273222e38056 100644
--- a/drivers/i2c/busses/i2c-ocores.c
+++ b/drivers/i2c/busses/i2c-ocores.c
@@ -83,7 +83,6 @@ struct ocores_i2c {
#define TYPE_OCORES 0
#define TYPE_GRLIB 1
-#define TYPE_SIFIVE_REV0 2
#define OCORES_FLAG_BROKEN_IRQ BIT(1) /* Broken IRQ for FU540-C000 SoC */
@@ -476,11 +475,9 @@ static const struct of_device_id ocores_i2c_match[] = {
},
{
.compatible = "sifive,fu540-c000-i2c",
- .data = (void *)TYPE_SIFIVE_REV0,
},
{
.compatible = "sifive,i2c0",
- .data = (void *)TYPE_SIFIVE_REV0,
},
{},
};
@@ -606,7 +603,6 @@ static int ocores_i2c_probe(struct platform_device *pdev)
{
struct ocores_i2c *i2c;
struct ocores_i2c_platform_data *pdata;
- const struct of_device_id *match;
struct resource *res;
int irq;
int ret;
@@ -686,17 +682,20 @@ static int ocores_i2c_probe(struct platform_device *pdev)
init_waitqueue_head(&i2c->wait);
- irq = platform_get_irq(pdev, 0);
+ irq = platform_get_irq_optional(pdev, 0);
+ /*
+ * Since the SoC does have an interrupt, its DT has an interrupt
+ * property - But this should be bypassed as the IRQ logic in this
+ * SoC is broken.
+ */
+ if (of_device_is_compatible(pdev->dev.of_node,
+ "sifive,fu540-c000-i2c")) {
+ i2c->flags |= OCORES_FLAG_BROKEN_IRQ;
+ irq = -ENXIO;
+ }
+
if (irq == -ENXIO) {
ocores_algorithm.master_xfer = ocores_xfer_polling;
-
- /*
- * Set in OCORES_FLAG_BROKEN_IRQ to enable workaround for
- * FU540-C000 SoC in polling mode.
- */
- match = of_match_node(ocores_i2c_match, pdev->dev.of_node);
- if (match && (long)match->data == TYPE_SIFIVE_REV0)
- i2c->flags |= OCORES_FLAG_BROKEN_IRQ;
} else {
if (irq < 0)
return irq;
diff --git a/drivers/i2c/busses/i2c-owl.c b/drivers/i2c/busses/i2c-owl.c
index 9918b2a0b909..5cf5a119a6ad 100644
--- a/drivers/i2c/busses/i2c-owl.c
+++ b/drivers/i2c/busses/i2c-owl.c
@@ -14,6 +14,7 @@
#include <linux/i2c.h>
#include <linux/interrupt.h>
#include <linux/io.h>
+#include <linux/iopoll.h>
#include <linux/module.h>
#include <linux/of_device.h>
@@ -76,6 +77,7 @@
#define OWL_I2C_FIFOCTL_TFR BIT(2)
/* I2Cc_FIFOSTAT Bit Mask */
+#define OWL_I2C_FIFOSTAT_CECB BIT(0)
#define OWL_I2C_FIFOSTAT_RNB BIT(1)
#define OWL_I2C_FIFOSTAT_RFE BIT(2)
#define OWL_I2C_FIFOSTAT_TFF BIT(5)
@@ -83,7 +85,8 @@
#define OWL_I2C_FIFOSTAT_RFD GENMASK(15, 8)
/* I2C bus timeout */
-#define OWL_I2C_TIMEOUT msecs_to_jiffies(4 * 1000)
+#define OWL_I2C_TIMEOUT_MS (4 * 1000)
+#define OWL_I2C_TIMEOUT msecs_to_jiffies(OWL_I2C_TIMEOUT_MS)
#define OWL_I2C_MAX_RETRIES 50
@@ -161,14 +164,11 @@ static void owl_i2c_set_freq(struct owl_i2c_dev *i2c_dev)
writel(OWL_I2C_DIV_FACTOR(val), i2c_dev->base + OWL_I2C_REG_CLKDIV);
}
-static irqreturn_t owl_i2c_interrupt(int irq, void *_dev)
+static void owl_i2c_xfer_data(struct owl_i2c_dev *i2c_dev)
{
- struct owl_i2c_dev *i2c_dev = _dev;
struct i2c_msg *msg = i2c_dev->msg;
unsigned int stat, fifostat;
- spin_lock(&i2c_dev->lock);
-
i2c_dev->err = 0;
/* Handle NACK from slave */
@@ -178,7 +178,7 @@ static irqreturn_t owl_i2c_interrupt(int irq, void *_dev)
/* Clear NACK error bit by writing "1" */
owl_i2c_update_reg(i2c_dev->base + OWL_I2C_REG_FIFOSTAT,
OWL_I2C_FIFOSTAT_RNB, true);
- goto stop;
+ return;
}
/* Handle bus error */
@@ -188,7 +188,7 @@ static irqreturn_t owl_i2c_interrupt(int irq, void *_dev)
/* Clear BUS error bit by writing "1" */
owl_i2c_update_reg(i2c_dev->base + OWL_I2C_REG_STAT,
OWL_I2C_STAT_BEB, true);
- goto stop;
+ return;
}
/* Handle FIFO read */
@@ -206,8 +206,16 @@ static irqreturn_t owl_i2c_interrupt(int irq, void *_dev)
i2c_dev->base + OWL_I2C_REG_TXDAT);
}
}
+}
+
+static irqreturn_t owl_i2c_interrupt(int irq, void *_dev)
+{
+ struct owl_i2c_dev *i2c_dev = _dev;
+
+ spin_lock(&i2c_dev->lock);
+
+ owl_i2c_xfer_data(i2c_dev);
-stop:
/* Clear pending interrupts */
owl_i2c_update_reg(i2c_dev->base + OWL_I2C_REG_STAT,
OWL_I2C_STAT_IRQP, true);
@@ -240,8 +248,8 @@ static int owl_i2c_check_bus_busy(struct i2c_adapter *adap)
return 0;
}
-static int owl_i2c_master_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs,
- int num)
+static int owl_i2c_xfer_common(struct i2c_adapter *adap, struct i2c_msg *msgs,
+ int num, bool atomic)
{
struct owl_i2c_dev *i2c_dev = i2c_get_adapdata(adap);
struct i2c_msg *msg;
@@ -285,11 +293,12 @@ static int owl_i2c_master_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs,
goto err_exit;
}
- reinit_completion(&i2c_dev->msg_complete);
+ if (!atomic)
+ reinit_completion(&i2c_dev->msg_complete);
- /* Enable I2C controller interrupt */
+ /* Enable/disable I2C controller interrupt */
owl_i2c_update_reg(i2c_dev->base + OWL_I2C_REG_CTL,
- OWL_I2C_CTL_IRQE, true);
+ OWL_I2C_CTL_IRQE, !atomic);
/*
* Select: FIFO enable, Master mode, Stop enable, Data count enable,
@@ -357,20 +366,33 @@ static int owl_i2c_master_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs,
spin_unlock_irqrestore(&i2c_dev->lock, flags);
- time_left = wait_for_completion_timeout(&i2c_dev->msg_complete,
- adap->timeout);
+ if (atomic) {
+ /* Wait for Command Execute Completed or NACK Error bits */
+ ret = readl_poll_timeout_atomic(i2c_dev->base + OWL_I2C_REG_FIFOSTAT,
+ val, val & (OWL_I2C_FIFOSTAT_CECB |
+ OWL_I2C_FIFOSTAT_RNB),
+ 10, OWL_I2C_TIMEOUT_MS * 1000);
+ } else {
+ time_left = wait_for_completion_timeout(&i2c_dev->msg_complete,
+ adap->timeout);
+ if (!time_left)
+ ret = -ETIMEDOUT;
+ }
spin_lock_irqsave(&i2c_dev->lock, flags);
- if (time_left == 0) {
+
+ if (ret) {
dev_err(&adap->dev, "Transaction timed out\n");
/* Send stop condition and release the bus */
owl_i2c_update_reg(i2c_dev->base + OWL_I2C_REG_CTL,
OWL_I2C_CTL_GBCC_STOP | OWL_I2C_CTL_RB,
true);
- ret = -ETIMEDOUT;
goto err_exit;
}
+ if (atomic)
+ owl_i2c_xfer_data(i2c_dev);
+
ret = i2c_dev->err < 0 ? i2c_dev->err : num;
err_exit:
@@ -384,9 +406,22 @@ unlocked_err_exit:
return ret;
}
+static int owl_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs,
+ int num)
+{
+ return owl_i2c_xfer_common(adap, msgs, num, false);
+}
+
+static int owl_i2c_xfer_atomic(struct i2c_adapter *adap,
+ struct i2c_msg *msgs, int num)
+{
+ return owl_i2c_xfer_common(adap, msgs, num, true);
+}
+
static const struct i2c_algorithm owl_i2c_algorithm = {
- .master_xfer = owl_i2c_master_xfer,
- .functionality = owl_i2c_func,
+ .master_xfer = owl_i2c_xfer,
+ .master_xfer_atomic = owl_i2c_xfer_atomic,
+ .functionality = owl_i2c_func,
};
static const struct i2c_adapter_quirks owl_i2c_quirks = {
@@ -484,6 +519,7 @@ static struct platform_driver owl_i2c_driver = {
.driver = {
.name = "owl-i2c",
.of_match_table = of_match_ptr(owl_i2c_of_match),
+ .probe_type = PROBE_PREFER_ASYNCHRONOUS,
},
};
module_platform_driver(owl_i2c_driver);
diff --git a/drivers/i2c/busses/i2c-pca-platform.c b/drivers/i2c/busses/i2c-pca-platform.c
index 546426a470cc..86d4f75ef8d3 100644
--- a/drivers/i2c/busses/i2c-pca-platform.c
+++ b/drivers/i2c/busses/i2c-pca-platform.c
@@ -33,8 +33,6 @@ struct i2c_pca_pf_data {
wait_queue_head_t wait;
struct i2c_adapter adap;
struct i2c_algo_pca_data algo_data;
- unsigned long io_base;
- unsigned long io_size;
};
/* Read/Write functions for different register alignments */
@@ -156,8 +154,6 @@ static int i2c_pca_pf_probe(struct platform_device *pdev)
init_waitqueue_head(&i2c->wait);
- i2c->io_base = res->start;
- i2c->io_size = resource_size(res);
i2c->irq = irq;
i2c->adap.nr = pdev->id;
diff --git a/drivers/i2c/busses/i2c-qcom-geni.c b/drivers/i2c/busses/i2c-qcom-geni.c
index 8b4c35f47a70..046d241183c5 100644
--- a/drivers/i2c/busses/i2c-qcom-geni.c
+++ b/drivers/i2c/busses/i2c-qcom-geni.c
@@ -353,19 +353,18 @@ static int geni_i2c_rx_one_msg(struct geni_i2c_dev *gi2c, struct i2c_msg *msg,
{
dma_addr_t rx_dma;
unsigned long time_left;
- void *dma_buf = NULL;
+ void *dma_buf;
struct geni_se *se = &gi2c->se;
size_t len = msg->len;
- if (!of_machine_is_compatible("lenovo,yoga-c630"))
- dma_buf = i2c_get_dma_safe_msg_buf(msg, 32);
-
+ dma_buf = i2c_get_dma_safe_msg_buf(msg, 32);
if (dma_buf)
geni_se_select_mode(se, GENI_SE_DMA);
else
geni_se_select_mode(se, GENI_SE_FIFO);
writel_relaxed(len, se->base + SE_I2C_RX_TRANS_LEN);
+ geni_se_setup_m_cmd(se, I2C_READ, m_param);
if (dma_buf && geni_se_rx_dma_prep(se, dma_buf, len, &rx_dma)) {
geni_se_select_mode(se, GENI_SE_FIFO);
@@ -373,8 +372,6 @@ static int geni_i2c_rx_one_msg(struct geni_i2c_dev *gi2c, struct i2c_msg *msg,
dma_buf = NULL;
}
- geni_se_setup_m_cmd(se, I2C_READ, m_param);
-
time_left = wait_for_completion_timeout(&gi2c->done, XFER_TIMEOUT);
if (!time_left)
geni_i2c_abort_xfer(gi2c);
@@ -395,19 +392,18 @@ static int geni_i2c_tx_one_msg(struct geni_i2c_dev *gi2c, struct i2c_msg *msg,
{
dma_addr_t tx_dma;
unsigned long time_left;
- void *dma_buf = NULL;
+ void *dma_buf;
struct geni_se *se = &gi2c->se;
size_t len = msg->len;
- if (!of_machine_is_compatible("lenovo,yoga-c630"))
- dma_buf = i2c_get_dma_safe_msg_buf(msg, 32);
-
+ dma_buf = i2c_get_dma_safe_msg_buf(msg, 32);
if (dma_buf)
geni_se_select_mode(se, GENI_SE_DMA);
else
geni_se_select_mode(se, GENI_SE_FIFO);
writel_relaxed(len, se->base + SE_I2C_TX_TRANS_LEN);
+ geni_se_setup_m_cmd(se, I2C_WRITE, m_param);
if (dma_buf && geni_se_tx_dma_prep(se, dma_buf, len, &tx_dma)) {
geni_se_select_mode(se, GENI_SE_FIFO);
@@ -415,8 +411,6 @@ static int geni_i2c_tx_one_msg(struct geni_i2c_dev *gi2c, struct i2c_msg *msg,
dma_buf = NULL;
}
- geni_se_setup_m_cmd(se, I2C_WRITE, m_param);
-
if (!dma_buf) /* Get FIFO IRQ */
writel_relaxed(1, se->base + SE_GENI_TX_WATERMARK_REG);
generated by cgit v1.2.3 (git 2.39.1) at 2025-01-07 17:27:40 +0000