.. | .. |
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| 1 | +// SPDX-License-Identifier: GPL-2.0-only |
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1 | 2 | /* |
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2 | 3 | * STMicroelectronics magnetometers driver |
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3 | 4 | * |
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4 | 5 | * Copyright 2012-2013 STMicroelectronics Inc. |
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5 | 6 | * |
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6 | 7 | * Denis Ciocca <denis.ciocca@st.com> |
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7 | | - * |
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8 | | - * Licensed under the GPL-2. |
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9 | 8 | */ |
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10 | 9 | |
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11 | 10 | #include <linux/module.h> |
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.. | .. |
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32 | 31 | |
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33 | 32 | static int st_magn_buffer_postenable(struct iio_dev *indio_dev) |
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34 | 33 | { |
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35 | | - int err; |
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36 | | - struct st_sensor_data *mdata = iio_priv(indio_dev); |
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37 | | - |
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38 | | - mdata->buffer_data = kmalloc(indio_dev->scan_bytes, GFP_KERNEL); |
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39 | | - if (mdata->buffer_data == NULL) { |
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40 | | - err = -ENOMEM; |
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41 | | - goto allocate_memory_error; |
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42 | | - } |
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43 | | - |
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44 | | - err = iio_triggered_buffer_postenable(indio_dev); |
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45 | | - if (err < 0) |
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46 | | - goto st_magn_buffer_postenable_error; |
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47 | | - |
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48 | 34 | return st_sensors_set_enable(indio_dev, true); |
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49 | | - |
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50 | | -st_magn_buffer_postenable_error: |
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51 | | - kfree(mdata->buffer_data); |
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52 | | -allocate_memory_error: |
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53 | | - return err; |
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54 | 35 | } |
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55 | 36 | |
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56 | 37 | static int st_magn_buffer_predisable(struct iio_dev *indio_dev) |
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57 | 38 | { |
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58 | | - int err; |
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59 | | - struct st_sensor_data *mdata = iio_priv(indio_dev); |
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60 | | - |
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61 | | - err = st_sensors_set_enable(indio_dev, false); |
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62 | | - if (err < 0) |
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63 | | - goto st_magn_buffer_predisable_error; |
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64 | | - |
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65 | | - err = iio_triggered_buffer_predisable(indio_dev); |
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66 | | - |
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67 | | -st_magn_buffer_predisable_error: |
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68 | | - kfree(mdata->buffer_data); |
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69 | | - return err; |
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| 39 | + return st_sensors_set_enable(indio_dev, false); |
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70 | 40 | } |
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71 | 41 | |
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72 | 42 | static const struct iio_buffer_setup_ops st_magn_buffer_setup_ops = { |
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