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authorMilo Kim <milo.kim@ti.com>2013-11-20 22:14:34 -0800
committerBryan Wu <cooloney@gmail.com>2014-01-27 17:28:48 -0800
commit93ad8a1d59a35ef7b489a83552daee6506f47815 (patch)
tree06a2f03a7b613da719200780ff03e1c027ce5a90 /drivers/leds
parent28c9266b38a00a07497daad0237f7fa154652ece (diff)
downloadop-kernel-dev-93ad8a1d59a35ef7b489a83552daee6506f47815.zip
op-kernel-dev-93ad8a1d59a35ef7b489a83552daee6506f47815.tar.gz
leds: lp5523: Support LED MUX configuration on running a pattern
There are two ways to run a pattern in LP5523. One is using legacy sysfs files such as 'enginex_mode','enginex_load' and 'enginex_leds'. ('x' is from 1 to 3). Among them, 'enginex_leds' are used for selecting specific LED channel MUX. (MUX means which LEDs are used for running a pattern from LED 1 to 9.) The other way is using the firmware interface. In this mode, the default LED MUX strings are used. In other words, LED MUX is not configurable on the fly. This patch enables dynamic LED MUX configuration when the firmware is loaded. By accessing the sysfs file 'enginex_leds', the LED channels can be configured. To synchronize the operation mode, each engine mode should be set to 'LOAD'. The documentation is updated as well. Cc: Pali Rohár <pali.rohar@gmail.com> Signed-off-by: Milo Kim <milo.kim@ti.com> Signed-off-by: Bryan Wu <cooloney@gmail.com>
Diffstat (limited to 'drivers/leds')
-rw-r--r--drivers/leds/leds-lp55xx-common.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/leds/leds-lp55xx-common.c b/drivers/leds/leds-lp55xx-common.c
index 9acc6bb..88317b4 100644
--- a/drivers/leds/leds-lp55xx-common.c
+++ b/drivers/leds/leds-lp55xx-common.c
@@ -210,6 +210,7 @@ static void lp55xx_firmware_loaded(const struct firmware *fw, void *context)
{
struct lp55xx_chip *chip = context;
struct device *dev = &chip->cl->dev;
+ enum lp55xx_engine_index idx = chip->engine_idx;
if (!fw) {
dev_err(dev, "firmware request failed\n");
@@ -219,6 +220,7 @@ static void lp55xx_firmware_loaded(const struct firmware *fw, void *context)
/* handling firmware data is chip dependent */
mutex_lock(&chip->lock);
+ chip->engines[idx - 1].mode = LP55XX_ENGINE_LOAD;
chip->fw = fw;
if (chip->cfg->firmware_cb)
chip->cfg->firmware_cb(chip);
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