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| author | Matthias Schiffer <matthias.schiffer@ew.tq-group.com> | 2022-06-08 14:48:01 +0200 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2022-09-23 13:00:13 -0700 |
| commit | 33fe4d976ff2c1fb6caf961b2e7bbfa66b8a9bf6 (patch) | |
| tree | d8fb6a620e386b18f72a2ceffa786f365a322a7c /drivers/input/rmi4 | |
| parent | 28f677e9d15181556c1f2103d93b9cc093e7b91f (diff) | |
| download | linux-stable-33fe4d976ff2c1fb6caf961b2e7bbfa66b8a9bf6.tar.gz linux-stable-33fe4d976ff2c1fb6caf961b2e7bbfa66b8a9bf6.tar.bz2 linux-stable-33fe4d976ff2c1fb6caf961b2e7bbfa66b8a9bf6.zip | |
Input: synaptics-rmi4 - introduce rmi_f34v7_check_command_status() helper
Add a function that waits for the last command to complete and checks
the status, and use it where appropriate. This prepares for the subsequent
fix of the completion condition in rmi_f34_attention(), which would
previously lead to a timeout instead of a more detailed error message
whenever a command was unsuccessful with v7/v8 bootloaders.
Signed-off-by: Matthias Schiffer <matthias.schiffer@ew.tq-group.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Link: https://lore.kernel.org/r/20220608124808.51402-3-matthias.schiffer@ew.tq-group.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'drivers/input/rmi4')
| -rw-r--r-- | drivers/input/rmi4/rmi_f34v7.c | 36 |
1 files changed, 29 insertions, 7 deletions
diff --git a/drivers/input/rmi4/rmi_f34v7.c b/drivers/input/rmi4/rmi_f34v7.c index 8d7ec9d89b18..9049acb3a994 100644 --- a/drivers/input/rmi4/rmi_f34v7.c +++ b/drivers/input/rmi4/rmi_f34v7.c @@ -72,6 +72,24 @@ static int rmi_f34v7_wait_for_idle(struct f34_data *f34, int timeout_ms) return 0; } +static int rmi_f34v7_check_command_status(struct f34_data *f34, int timeout_ms) +{ + int ret; + + ret = rmi_f34v7_wait_for_idle(f34, timeout_ms); + if (ret < 0) + return ret; + + ret = rmi_f34v7_read_flash_status(f34); + if (ret < 0) + return ret; + + if (f34->v7.flash_status != 0x00) + return -EIO; + + return 0; +} + static int rmi_f34v7_write_command_single_transaction(struct f34_data *f34, u8 cmd) { @@ -318,6 +336,10 @@ static int rmi_f34v7_read_partition_table(struct f34_data *f34) return ret; } + /* + * rmi_f34v7_check_command_status() can't be used here, as this + * function is called before IRQs are available + */ timeout = msecs_to_jiffies(F34_WRITE_WAIT_MS); while (time_before(jiffies, timeout)) { usleep_range(5000, 6000); @@ -674,7 +696,7 @@ static int rmi_f34v7_erase_config(struct f34_data *f34) break; } - ret = rmi_f34v7_wait_for_idle(f34, F34_ERASE_WAIT_MS); + ret = rmi_f34v7_check_command_status(f34, F34_ERASE_WAIT_MS); if (ret < 0) return ret; @@ -693,7 +715,7 @@ static int rmi_f34v7_erase_guest_code(struct f34_data *f34) if (ret < 0) return ret; - ret = rmi_f34v7_wait_for_idle(f34, F34_ERASE_WAIT_MS); + ret = rmi_f34v7_check_command_status(f34, F34_ERASE_WAIT_MS); if (ret < 0) return ret; @@ -712,7 +734,7 @@ static int rmi_f34v7_erase_all(struct f34_data *f34) if (ret < 0) return ret; - ret = rmi_f34v7_wait_for_idle(f34, F34_ERASE_WAIT_MS); + ret = rmi_f34v7_check_command_status(f34, F34_ERASE_WAIT_MS); if (ret < 0) return ret; @@ -787,7 +809,7 @@ static int rmi_f34v7_read_blocks(struct f34_data *f34, if (ret < 0) return ret; - ret = rmi_f34v7_wait_for_idle(f34, F34_ENABLE_WAIT_MS); + ret = rmi_f34v7_check_command_status(f34, F34_ENABLE_WAIT_MS); if (ret < 0) return ret; @@ -871,7 +893,7 @@ static int rmi_f34v7_write_f34v7_blocks(struct f34_data *f34, return ret; } - ret = rmi_f34v7_wait_for_idle(f34, F34_ENABLE_WAIT_MS); + ret = rmi_f34v7_check_command_status(f34, F34_ENABLE_WAIT_MS); if (ret < 0) return ret; @@ -944,7 +966,7 @@ static int rmi_f34v7_write_flash_config(struct f34_data *f34) rmi_dbg(RMI_DEBUG_FN, &f34->fn->dev, "%s: Erase flash config command written\n", __func__); - ret = rmi_f34v7_wait_for_idle(f34, F34_WRITE_WAIT_MS); + ret = rmi_f34v7_check_command_status(f34, F34_WRITE_WAIT_MS); if (ret < 0) return ret; @@ -1297,7 +1319,7 @@ static int rmi_f34v7_enter_flash_prog(struct f34_data *f34) if (ret < 0) return ret; - ret = rmi_f34v7_wait_for_idle(f34, F34_ENABLE_WAIT_MS); + ret = rmi_f34v7_check_command_status(f34, F34_ENABLE_WAIT_MS); if (ret < 0) return ret; |