FBTFT Framebuffer drivers
M: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
-M: Noralf Trønnes <noralf@tronnes.org>
S: Maintained
F: drivers/staging/fbtft/
struct device_node *child;
struct regulator *vref;
unsigned int reg;
- unsigned int adcmode, childmode;
+ unsigned int adcmode = -1, childmode;
unsigned int sample_width;
unsigned int num_channels;
int ret, first = 1;
channels = rcar_gyroadc_iio_channels_3;
num_channels = ARRAY_SIZE(rcar_gyroadc_iio_channels_3);
break;
+ default:
+ return -EINVAL;
}
/*
ret = xadc->ops->setup(pdev, indio_dev, irq);
if (ret)
- goto err_free_samplerate_trigger;
+ goto err_clk_disable_unprepare;
ret = request_irq(irq, xadc->ops->interrupt_handler, 0,
dev_name(&pdev->dev), indio_dev);
err_free_irq:
free_irq(irq, indio_dev);
+err_clk_disable_unprepare:
+ clk_disable_unprepare(xadc->clk);
err_free_samplerate_trigger:
if (xadc->ops->flags & XADC_FLAGS_BUFFERED)
iio_trigger_free(xadc->samplerate_trigger);
err_triggered_buffer_cleanup:
if (xadc->ops->flags & XADC_FLAGS_BUFFERED)
iio_triggered_buffer_cleanup(indio_dev);
-err_clk_disable_unprepare:
- clk_disable_unprepare(xadc->clk);
err_device_free:
kfree(indio_dev->channels);
return IIO_VAL_INT;
}
- flags = inb(base_offset);
+ flags = inb(base_offset + 1);
borrow = flags & BIT(0);
carry = !!(flags & BIT(1));
int *paddr_cells,
int *mc_addr_cells,
int *mc_size_cells,
- const __be32 **ranges_start,
- u8 *num_ranges)
+ const __be32 **ranges_start)
{
const __be32 *prop;
int range_tuple_cell_count;
dev_warn(dev,
"missing or empty ranges property for device tree node '%s'\n",
mc_node->name);
-
- *num_ranges = 0;
return 0;
}
return -EINVAL;
}
- *num_ranges = ranges_len / tuple_len;
- return 0;
+ return ranges_len / tuple_len;
}
static int get_mc_addr_translation_ranges(struct device *dev,
**ranges,
u8 *num_ranges)
{
- int error;
+ int ret;
int paddr_cells;
int mc_addr_cells;
int mc_size_cells;
const __be32 *ranges_start;
const __be32 *cell;
- error = parse_mc_ranges(dev,
+ ret = parse_mc_ranges(dev,
&paddr_cells,
&mc_addr_cells,
&mc_size_cells,
- &ranges_start,
- num_ranges);
- if (error < 0)
- return error;
+ &ranges_start);
+ if (ret < 0)
+ return ret;
- if (!(*num_ranges)) {
+ *num_ranges = ret;
+ if (!ret) {
/*
* Missing or empty ranges property ("ranges;") for the
* 'fsl,qoriq-mc' node. In this case, identity mapping
svc->sv_shuttingdown = 0;
svc->sv_cpt_data = cfs_percpt_alloc(lnet_cpt_table(),
- sizeof(*svc->sv_cpt_data));
+ sizeof(**svc->sv_cpt_data));
if (!svc->sv_cpt_data)
return -ENOMEM;
/* get context */
msg_context = get_msg_context(instance);
- if (msg_context == NULL)
- return -ENOMEM;
+ if (!msg_context) {
+ ret = -ENOMEM;
+ goto unlock;
+ }
/* store bulk message context for when data arrives */
msg_context->u.bulk.instance = instance;
vchi_service_release(instance->handle);
+unlock:
mutex_unlock(&instance->bulk_mutex);
return ret;
if (err < 0)
return err;
- (void)of_property_read_u32(dev->of_node, "cache-line-size",
+ err = of_property_read_u32(dev->of_node, "cache-line-size",
&g_cache_line_size);
+
+ if (err) {
+ dev_err(dev, "Missing cache-line-size property\n");
+ return -ENODEV;
+ }
+
g_fragments_size = 2 * g_cache_line_size;
/* Allocate space for the channels in coherent memory */